java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem19_label11.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-07 22:59:17,399 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-07 22:59:17,402 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-07 22:59:17,419 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-07 22:59:17,420 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-07 22:59:17,422 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-07 22:59:17,424 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-07 22:59:17,427 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-07 22:59:17,429 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-07 22:59:17,430 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-07 22:59:17,431 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-07 22:59:17,432 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-07 22:59:17,432 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-07 22:59:17,433 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-07 22:59:17,434 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-07 22:59:17,435 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-07 22:59:17,436 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-07 22:59:17,437 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-07 22:59:17,439 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-07 22:59:17,442 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-07 22:59:17,443 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-07 22:59:17,444 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-07 22:59:17,446 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-07 22:59:17,447 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-07 22:59:17,452 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-07 22:59:17,459 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-07 22:59:17,461 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-07 22:59:17,464 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-07 22:59:17,465 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-07 22:59:17,466 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-07 22:59:17,466 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-07 22:59:17,467 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-07 22:59:17,467 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-07 22:59:17,470 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-07 22:59:17,471 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-07 22:59:17,472 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-07 22:59:17,475 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-09-07 22:59:17,506 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-07 22:59:17,506 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-07 22:59:17,509 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-07 22:59:17,509 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-07 22:59:17,509 INFO L138 SettingsManager]: * Use SBE=true [2019-09-07 22:59:17,510 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-07 22:59:17,510 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-07 22:59:17,510 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-07 22:59:17,510 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-07 22:59:17,510 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-07 22:59:17,512 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-07 22:59:17,512 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-07 22:59:17,512 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-07 22:59:17,513 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-07 22:59:17,513 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-07 22:59:17,513 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-07 22:59:17,513 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-07 22:59:17,513 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-07 22:59:17,514 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-07 22:59:17,514 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-07 22:59:17,514 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-07 22:59:17,514 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-07 22:59:17,515 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-07 22:59:17,515 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-07 22:59:17,515 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-07 22:59:17,515 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-07 22:59:17,516 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-07 22:59:17,516 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-07 22:59:17,516 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-07 22:59:17,551 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-07 22:59:17,564 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-07 22:59:17,568 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-07 22:59:17,570 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-07 22:59:17,571 INFO L275 PluginConnector]: CDTParser initialized [2019-09-07 22:59:17,572 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label11.c [2019-09-07 22:59:17,654 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0da5bcc9c/e9a4fdeb110b4da89f17c51fca66bc2f/FLAG1e001b924 [2019-09-07 22:59:18,667 INFO L306 CDTParser]: Found 1 translation units. [2019-09-07 22:59:18,669 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label11.c [2019-09-07 22:59:18,720 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0da5bcc9c/e9a4fdeb110b4da89f17c51fca66bc2f/FLAG1e001b924 [2019-09-07 22:59:18,983 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0da5bcc9c/e9a4fdeb110b4da89f17c51fca66bc2f [2019-09-07 22:59:18,996 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-07 22:59:18,998 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-07 22:59:18,999 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-07 22:59:19,000 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-07 22:59:19,004 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-07 22:59:19,005 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 10:59:18" (1/1) ... [2019-09-07 22:59:19,008 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60ff144e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:59:19, skipping insertion in model container [2019-09-07 22:59:19,009 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 10:59:18" (1/1) ... [2019-09-07 22:59:19,017 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-07 22:59:19,274 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-07 22:59:21,589 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-07 22:59:21,597 INFO L188 MainTranslator]: Completed pre-run [2019-09-07 22:59:22,758 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-07 22:59:22,805 INFO L192 MainTranslator]: Completed translation [2019-09-07 22:59:22,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:59:22 WrapperNode [2019-09-07 22:59:22,807 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-07 22:59:22,808 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-07 22:59:22,808 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-07 22:59:22,808 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-07 22:59:22,823 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:59:22" (1/1) ... [2019-09-07 22:59:22,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:59:22" (1/1) ... [2019-09-07 22:59:22,907 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:59:22" (1/1) ... [2019-09-07 22:59:22,908 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:59:22" (1/1) ... [2019-09-07 22:59:23,052 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:59:22" (1/1) ... [2019-09-07 22:59:23,091 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:59:22" (1/1) ... [2019-09-07 22:59:23,140 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:59:22" (1/1) ... [2019-09-07 22:59:23,209 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-07 22:59:23,210 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-07 22:59:23,210 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-07 22:59:23,210 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-07 22:59:23,211 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:59:22" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory: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 [2019-09-07 22:59:23,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-07 22:59:23,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-07 22:59:23,282 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-09-07 22:59:23,283 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2019-09-07 22:59:23,283 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2019-09-07 22:59:23,283 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2019-09-07 22:59:23,283 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2019-09-07 22:59:23,283 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2019-09-07 22:59:23,284 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-07 22:59:23,284 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-09-07 22:59:23,284 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2019-09-07 22:59:23,284 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2019-09-07 22:59:23,284 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2019-09-07 22:59:23,285 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2019-09-07 22:59:23,285 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2019-09-07 22:59:23,285 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-07 22:59:23,285 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-07 22:59:23,285 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-07 22:59:23,286 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-07 22:59:23,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-07 22:59:23,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-07 22:59:34,137 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-07 22:59:34,138 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-07 22:59:34,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 10:59:34 BoogieIcfgContainer [2019-09-07 22:59:34,140 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-07 22:59:34,141 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-07 22:59:34,141 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-07 22:59:34,145 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-07 22:59:34,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.09 10:59:18" (1/3) ... [2019-09-07 22:59:34,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a61d86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 10:59:34, skipping insertion in model container [2019-09-07 22:59:34,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:59:22" (2/3) ... [2019-09-07 22:59:34,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a61d86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 10:59:34, skipping insertion in model container [2019-09-07 22:59:34,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 10:59:34" (3/3) ... [2019-09-07 22:59:34,149 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem19_label11.c [2019-09-07 22:59:34,159 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-07 22:59:34,169 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-07 22:59:34,185 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-07 22:59:34,232 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-07 22:59:34,233 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-07 22:59:34,233 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-07 22:59:34,234 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-07 22:59:34,234 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-07 22:59:34,234 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-07 22:59:34,234 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-07 22:59:34,234 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-07 22:59:34,234 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-07 22:59:34,282 INFO L276 IsEmpty]: Start isEmpty. Operand 1777 states. [2019-09-07 22:59:34,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-09-07 22:59:34,289 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 22:59:34,290 INFO L399 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] [2019-09-07 22:59:34,292 INFO L418 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 22:59:34,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 22:59:34,299 INFO L82 PathProgramCache]: Analyzing trace with hash -1782451774, now seen corresponding path program 1 times [2019-09-07 22:59:34,301 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 22:59:34,301 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 22:59:34,347 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 22:59:34,347 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 22:59:34,347 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 22:59:34,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 22:59:34,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 22:59:34,543 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 22:59:34,543 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-07 22:59:34,548 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-07 22:59:34,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-07 22:59:34,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-09-07 22:59:34,566 INFO L87 Difference]: Start difference. First operand 1777 states. Second operand 4 states. [2019-09-07 22:59:52,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 22:59:52,609 INFO L93 Difference]: Finished difference Result 6506 states and 12377 transitions. [2019-09-07 22:59:52,609 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-07 22:59:52,611 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2019-09-07 22:59:52,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 22:59:52,665 INFO L225 Difference]: With dead ends: 6506 [2019-09-07 22:59:52,665 INFO L226 Difference]: Without dead ends: 4647 [2019-09-07 22:59:52,683 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-09-07 22:59:52,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4647 states. [2019-09-07 22:59:52,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4647 to 4608. [2019-09-07 22:59:52,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4608 states. [2019-09-07 22:59:52,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4608 states to 4608 states and 7227 transitions. [2019-09-07 22:59:52,940 INFO L78 Accepts]: Start accepts. Automaton has 4608 states and 7227 transitions. Word has length 22 [2019-09-07 22:59:52,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 22:59:52,941 INFO L475 AbstractCegarLoop]: Abstraction has 4608 states and 7227 transitions. [2019-09-07 22:59:52,942 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-07 22:59:52,942 INFO L276 IsEmpty]: Start isEmpty. Operand 4608 states and 7227 transitions. [2019-09-07 22:59:52,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-09-07 22:59:52,951 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 22:59:52,952 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-07 22:59:52,952 INFO L418 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 22:59:52,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 22:59:52,954 INFO L82 PathProgramCache]: Analyzing trace with hash 1313163407, now seen corresponding path program 1 times [2019-09-07 22:59:52,954 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 22:59:52,954 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 22:59:52,956 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 22:59:52,957 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 22:59:52,957 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 22:59:53,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 22:59:53,262 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 22:59:53,262 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 22:59:53,262 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-07 22:59:53,268 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-07 22:59:53,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-07 22:59:53,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-09-07 22:59:53,269 INFO L87 Difference]: Start difference. First operand 4608 states and 7227 transitions. Second operand 6 states. [2019-09-07 23:00:08,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 23:00:08,132 INFO L93 Difference]: Finished difference Result 13631 states and 21679 transitions. [2019-09-07 23:00:08,133 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-07 23:00:08,133 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 93 [2019-09-07 23:00:08,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 23:00:08,183 INFO L225 Difference]: With dead ends: 13631 [2019-09-07 23:00:08,183 INFO L226 Difference]: Without dead ends: 9029 [2019-09-07 23:00:08,194 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-09-07 23:00:08,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9029 states. [2019-09-07 23:00:08,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9029 to 8961. [2019-09-07 23:00:08,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8961 states. [2019-09-07 23:00:08,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8961 states to 8961 states and 13763 transitions. [2019-09-07 23:00:08,446 INFO L78 Accepts]: Start accepts. Automaton has 8961 states and 13763 transitions. Word has length 93 [2019-09-07 23:00:08,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 23:00:08,448 INFO L475 AbstractCegarLoop]: Abstraction has 8961 states and 13763 transitions. [2019-09-07 23:00:08,448 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-07 23:00:08,448 INFO L276 IsEmpty]: Start isEmpty. Operand 8961 states and 13763 transitions. [2019-09-07 23:00:08,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-09-07 23:00:08,459 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 23:00:08,460 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-07 23:00:08,460 INFO L418 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 23:00:08,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 23:00:08,461 INFO L82 PathProgramCache]: Analyzing trace with hash -535336563, now seen corresponding path program 1 times [2019-09-07 23:00:08,462 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 23:00:08,462 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 23:00:08,464 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 23:00:08,465 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 23:00:08,465 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 23:00:08,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 23:00:08,700 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 23:00:08,701 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 23:00:08,701 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-07 23:00:08,701 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-07 23:00:08,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-07 23:00:08,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-07 23:00:08,703 INFO L87 Difference]: Start difference. First operand 8961 states and 13763 transitions. Second operand 6 states. [2019-09-07 23:00:25,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 23:00:25,215 INFO L93 Difference]: Finished difference Result 27301 states and 42974 transitions. [2019-09-07 23:00:25,217 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-07 23:00:25,218 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 103 [2019-09-07 23:00:25,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 23:00:25,309 INFO L225 Difference]: With dead ends: 27301 [2019-09-07 23:00:25,309 INFO L226 Difference]: Without dead ends: 18346 [2019-09-07 23:00:25,339 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2019-09-07 23:00:25,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18346 states. [2019-09-07 23:00:25,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18346 to 18123. [2019-09-07 23:00:25,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18123 states. [2019-09-07 23:00:25,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18123 states to 18123 states and 27406 transitions. [2019-09-07 23:00:25,791 INFO L78 Accepts]: Start accepts. Automaton has 18123 states and 27406 transitions. Word has length 103 [2019-09-07 23:00:25,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 23:00:25,792 INFO L475 AbstractCegarLoop]: Abstraction has 18123 states and 27406 transitions. [2019-09-07 23:00:25,792 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-07 23:00:25,792 INFO L276 IsEmpty]: Start isEmpty. Operand 18123 states and 27406 transitions. [2019-09-07 23:00:25,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2019-09-07 23:00:25,796 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 23:00:25,796 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-07 23:00:25,796 INFO L418 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 23:00:25,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 23:00:25,797 INFO L82 PathProgramCache]: Analyzing trace with hash -1772449417, now seen corresponding path program 1 times [2019-09-07 23:00:25,797 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 23:00:25,797 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 23:00:25,798 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 23:00:25,798 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 23:00:25,798 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 23:00:25,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 23:00:26,079 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 23:00:26,080 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 23:00:26,080 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-07 23:00:26,080 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-07 23:00:26,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-07 23:00:26,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-07 23:00:26,081 INFO L87 Difference]: Start difference. First operand 18123 states and 27406 transitions. Second operand 5 states. [2019-09-07 23:00:43,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 23:00:43,199 INFO L93 Difference]: Finished difference Result 55407 states and 86337 transitions. [2019-09-07 23:00:43,199 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-07 23:00:43,199 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 123 [2019-09-07 23:00:43,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 23:00:43,325 INFO L225 Difference]: With dead ends: 55407 [2019-09-07 23:00:43,326 INFO L226 Difference]: Without dead ends: 37290 [2019-09-07 23:00:43,377 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-09-07 23:00:43,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37290 states. [2019-09-07 23:00:44,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37290 to 36555. [2019-09-07 23:00:44,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36555 states. [2019-09-07 23:00:44,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36555 states to 36555 states and 50010 transitions. [2019-09-07 23:00:44,239 INFO L78 Accepts]: Start accepts. Automaton has 36555 states and 50010 transitions. Word has length 123 [2019-09-07 23:00:44,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 23:00:44,241 INFO L475 AbstractCegarLoop]: Abstraction has 36555 states and 50010 transitions. [2019-09-07 23:00:44,241 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-07 23:00:44,242 INFO L276 IsEmpty]: Start isEmpty. Operand 36555 states and 50010 transitions. [2019-09-07 23:00:44,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2019-09-07 23:00:44,247 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 23:00:44,248 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-07 23:00:44,248 INFO L418 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 23:00:44,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 23:00:44,249 INFO L82 PathProgramCache]: Analyzing trace with hash 1415346162, now seen corresponding path program 1 times [2019-09-07 23:00:44,249 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 23:00:44,249 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 23:00:44,250 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 23:00:44,250 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 23:00:44,250 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 23:00:44,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 23:00:44,650 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2019-09-07 23:00:44,707 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 23:00:44,707 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 23:00:44,707 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-07 23:00:44,709 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-07 23:00:44,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-07 23:00:44,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-09-07 23:00:44,711 INFO L87 Difference]: Start difference. First operand 36555 states and 50010 transitions. Second operand 6 states. [2019-09-07 23:01:01,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 23:01:01,067 INFO L93 Difference]: Finished difference Result 91515 states and 129175 transitions. [2019-09-07 23:01:01,068 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-07 23:01:01,069 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 186 [2019-09-07 23:01:01,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 23:01:01,276 INFO L225 Difference]: With dead ends: 91515 [2019-09-07 23:01:01,277 INFO L226 Difference]: Without dead ends: 54966 [2019-09-07 23:01:01,340 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-09-07 23:01:01,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54966 states. [2019-09-07 23:01:02,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54966 to 54608. [2019-09-07 23:01:02,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54608 states. [2019-09-07 23:01:04,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54608 states to 54608 states and 72741 transitions. [2019-09-07 23:01:04,585 INFO L78 Accepts]: Start accepts. Automaton has 54608 states and 72741 transitions. Word has length 186 [2019-09-07 23:01:04,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 23:01:04,586 INFO L475 AbstractCegarLoop]: Abstraction has 54608 states and 72741 transitions. [2019-09-07 23:01:04,586 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-07 23:01:04,586 INFO L276 IsEmpty]: Start isEmpty. Operand 54608 states and 72741 transitions. [2019-09-07 23:01:04,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 730 [2019-09-07 23:01:04,607 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 23:01:04,608 INFO L399 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-07 23:01:04,608 INFO L418 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 23:01:04,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 23:01:04,610 INFO L82 PathProgramCache]: Analyzing trace with hash -815630239, now seen corresponding path program 1 times [2019-09-07 23:01:04,610 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 23:01:04,610 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 23:01:04,611 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 23:01:04,611 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 23:01:04,611 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 23:01:04,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 23:01:05,588 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 23:01:05,588 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 23:01:05,588 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-07 23:01:05,604 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 23:01:06,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 23:01:06,082 INFO L256 TraceCheckSpWp]: Trace formula consists of 990 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-07 23:01:06,106 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 23:01:06,608 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 23:01:06,623 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 23:01:06,623 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2019-09-07 23:01:06,625 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-07 23:01:06,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-07 23:01:06,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2019-09-07 23:01:06,626 INFO L87 Difference]: Start difference. First operand 54608 states and 72741 transitions. Second operand 9 states. [2019-09-07 23:01:32,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 23:01:32,005 INFO L93 Difference]: Finished difference Result 128875 states and 184025 transitions. [2019-09-07 23:01:32,008 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-09-07 23:01:32,008 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 729 [2019-09-07 23:01:32,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 23:01:32,360 INFO L225 Difference]: With dead ends: 128875 [2019-09-07 23:01:32,360 INFO L226 Difference]: Without dead ends: 74273 [2019-09-07 23:01:32,462 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 753 GetRequests, 735 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=260, Unknown=0, NotChecked=0, Total=380 [2019-09-07 23:01:32,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74273 states. [2019-09-07 23:01:34,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74273 to 71981. [2019-09-07 23:01:34,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71981 states. [2019-09-07 23:01:34,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71981 states to 71981 states and 93225 transitions. [2019-09-07 23:01:34,766 INFO L78 Accepts]: Start accepts. Automaton has 71981 states and 93225 transitions. Word has length 729 [2019-09-07 23:01:34,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 23:01:34,771 INFO L475 AbstractCegarLoop]: Abstraction has 71981 states and 93225 transitions. [2019-09-07 23:01:34,772 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-07 23:01:34,772 INFO L276 IsEmpty]: Start isEmpty. Operand 71981 states and 93225 transitions. [2019-09-07 23:01:34,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 780 [2019-09-07 23:01:34,809 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 23:01:34,810 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-07 23:01:34,811 INFO L418 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 23:01:34,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 23:01:34,812 INFO L82 PathProgramCache]: Analyzing trace with hash 785865821, now seen corresponding path program 1 times [2019-09-07 23:01:34,813 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 23:01:34,813 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 23:01:34,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 23:01:34,814 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 23:01:34,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 23:01:34,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 23:01:35,981 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 192 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 23:01:35,981 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 23:01:35,981 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 23:01:35,999 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 23:01:36,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 23:01:36,200 INFO L256 TraceCheckSpWp]: Trace formula consists of 1038 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-07 23:01:36,211 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 23:01:36,509 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 192 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 23:01:36,517 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 23:01:36,518 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2019-09-07 23:01:36,519 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-07 23:01:36,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-07 23:01:36,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2019-09-07 23:01:36,520 INFO L87 Difference]: Start difference. First operand 71981 states and 93225 transitions. Second operand 9 states. [2019-09-07 23:02:11,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 23:02:11,672 INFO L93 Difference]: Finished difference Result 319361 states and 533398 transitions. [2019-09-07 23:02:11,672 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-09-07 23:02:11,673 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 779 [2019-09-07 23:02:11,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 23:02:16,576 INFO L225 Difference]: With dead ends: 319361 [2019-09-07 23:02:16,577 INFO L226 Difference]: Without dead ends: 244455 [2019-09-07 23:02:16,790 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 801 GetRequests, 785 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=207, Unknown=0, NotChecked=0, Total=306 [2019-09-07 23:02:17,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244455 states. [2019-09-07 23:02:22,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244455 to 242850. [2019-09-07 23:02:22,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242850 states. [2019-09-07 23:02:23,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242850 states to 242850 states and 356998 transitions. [2019-09-07 23:02:23,066 INFO L78 Accepts]: Start accepts. Automaton has 242850 states and 356998 transitions. Word has length 779 [2019-09-07 23:02:23,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 23:02:23,067 INFO L475 AbstractCegarLoop]: Abstraction has 242850 states and 356998 transitions. [2019-09-07 23:02:23,067 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-07 23:02:23,067 INFO L276 IsEmpty]: Start isEmpty. Operand 242850 states and 356998 transitions. [2019-09-07 23:02:23,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 954 [2019-09-07 23:02:23,083 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 23:02:23,084 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-07 23:02:23,084 INFO L418 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 23:02:23,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 23:02:23,085 INFO L82 PathProgramCache]: Analyzing trace with hash -1631122777, now seen corresponding path program 1 times [2019-09-07 23:02:23,085 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 23:02:23,085 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 23:02:23,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 23:02:23,086 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 23:02:23,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 23:02:23,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 23:02:28,055 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 248 proven. 2 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2019-09-07 23:02:28,055 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 23:02:28,055 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2019-09-07 23:02:28,066 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 23:02:28,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 23:02:28,319 INFO L256 TraceCheckSpWp]: Trace formula consists of 1257 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-07 23:02:28,351 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 23:02:29,018 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 248 proven. 2 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2019-09-07 23:02:29,022 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 23:02:29,022 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2019-09-07 23:02:29,026 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-07 23:02:29,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-07 23:02:29,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2019-09-07 23:02:29,027 INFO L87 Difference]: Start difference. First operand 242850 states and 356998 transitions. Second operand 9 states. [2019-09-07 23:03:04,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 23:03:04,685 INFO L93 Difference]: Finished difference Result 608362 states and 1023505 transitions. [2019-09-07 23:03:04,686 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-09-07 23:03:04,686 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 953 [2019-09-07 23:03:04,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 23:03:06,576 INFO L225 Difference]: With dead ends: 608362 [2019-09-07 23:03:06,577 INFO L226 Difference]: Without dead ends: 347863 [2019-09-07 23:03:13,561 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 986 GetRequests, 965 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=150, Invalid=356, Unknown=0, NotChecked=0, Total=506 [2019-09-07 23:03:13,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347863 states. [2019-09-07 23:03:20,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347863 to 346644. [2019-09-07 23:03:20,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346644 states. [2019-09-07 23:03:30,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346644 states to 346644 states and 554143 transitions. [2019-09-07 23:03:30,684 INFO L78 Accepts]: Start accepts. Automaton has 346644 states and 554143 transitions. Word has length 953 [2019-09-07 23:03:30,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 23:03:30,686 INFO L475 AbstractCegarLoop]: Abstraction has 346644 states and 554143 transitions. [2019-09-07 23:03:30,686 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-07 23:03:30,686 INFO L276 IsEmpty]: Start isEmpty. Operand 346644 states and 554143 transitions. [2019-09-07 23:03:30,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 967 [2019-09-07 23:03:30,706 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 23:03:30,707 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-07 23:03:30,707 INFO L418 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 23:03:30,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 23:03:30,708 INFO L82 PathProgramCache]: Analyzing trace with hash -1000851365, now seen corresponding path program 1 times [2019-09-07 23:03:30,708 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 23:03:30,708 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 23:03:30,709 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 23:03:30,709 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 23:03:30,709 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 23:03:30,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 23:03:33,648 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 274 proven. 2 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2019-09-07 23:03:33,648 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 23:03:33,649 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 23:03:33,681 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 23:03:33,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 23:03:33,950 INFO L256 TraceCheckSpWp]: Trace formula consists of 1268 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-07 23:03:33,966 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 23:03:40,401 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 274 proven. 2 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2019-09-07 23:03:40,405 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 23:03:40,405 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2019-09-07 23:03:40,406 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-07 23:03:40,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-07 23:03:40,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2019-09-07 23:03:40,407 INFO L87 Difference]: Start difference. First operand 346644 states and 554143 transitions. Second operand 9 states. [2019-09-07 23:04:49,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 23:04:49,645 INFO L93 Difference]: Finished difference Result 974321 states and 2088447 transitions. [2019-09-07 23:04:49,647 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-07 23:04:49,647 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 966 [2019-09-07 23:04:49,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 23:04:54,423 INFO L225 Difference]: With dead ends: 974321 [2019-09-07 23:04:54,423 INFO L226 Difference]: Without dead ends: 610848 [2019-09-07 23:04:55,386 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 987 GetRequests, 972 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=188, Unknown=0, NotChecked=0, Total=272 [2019-09-07 23:04:55,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610848 states. [2019-09-07 23:05:33,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610848 to 608926. [2019-09-07 23:05:33,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 608926 states. [2019-09-07 23:05:56,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608926 states to 608926 states and 1333046 transitions. [2019-09-07 23:05:56,484 INFO L78 Accepts]: Start accepts. Automaton has 608926 states and 1333046 transitions. Word has length 966 [2019-09-07 23:05:56,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 23:05:56,485 INFO L475 AbstractCegarLoop]: Abstraction has 608926 states and 1333046 transitions. [2019-09-07 23:05:56,485 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-07 23:05:56,485 INFO L276 IsEmpty]: Start isEmpty. Operand 608926 states and 1333046 transitions. [2019-09-07 23:05:56,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1014 [2019-09-07 23:05:56,507 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 23:05:56,508 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-07 23:05:56,508 INFO L418 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 23:05:56,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 23:05:56,509 INFO L82 PathProgramCache]: Analyzing trace with hash 1354708329, now seen corresponding path program 1 times [2019-09-07 23:05:56,509 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 23:05:56,509 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 23:05:56,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 23:05:56,510 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 23:05:56,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 23:05:56,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 23:06:08,511 INFO L134 CoverageAnalysis]: Checked inductivity of 607 backedges. 281 proven. 164 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2019-09-07 23:06:08,511 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 23:06:08,512 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 23:06:08,525 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 23:06:08,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 23:06:08,768 INFO L256 TraceCheckSpWp]: Trace formula consists of 1317 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-07 23:06:08,780 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 23:06:09,683 INFO L134 CoverageAnalysis]: Checked inductivity of 607 backedges. 589 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-09-07 23:06:09,696 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 23:06:09,697 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2019-09-07 23:06:09,700 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-07 23:06:09,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-07 23:06:09,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2019-09-07 23:06:09,700 INFO L87 Difference]: Start difference. First operand 608926 states and 1333046 transitions. Second operand 9 states.