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/Problem06_label58.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-07 15:29:31,315 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-07 15:29:31,317 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-07 15:29:31,329 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-07 15:29:31,330 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-07 15:29:31,331 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-07 15:29:31,332 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-07 15:29:31,334 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-07 15:29:31,336 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-07 15:29:31,337 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-07 15:29:31,337 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-07 15:29:31,339 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-07 15:29:31,339 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-07 15:29:31,340 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-07 15:29:31,341 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-07 15:29:31,342 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-07 15:29:31,343 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-07 15:29:31,344 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-07 15:29:31,346 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-07 15:29:31,348 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-07 15:29:31,350 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-07 15:29:31,351 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-07 15:29:31,352 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-07 15:29:31,353 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-07 15:29:31,355 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-07 15:29:31,358 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-07 15:29:31,359 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-07 15:29:31,360 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-07 15:29:31,361 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-07 15:29:31,362 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-07 15:29:31,362 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-07 15:29:31,363 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-07 15:29:31,363 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-07 15:29:31,363 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-07 15:29:31,364 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-07 15:29:31,365 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-07 15:29:31,366 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 15:29:31,381 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-07 15:29:31,381 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-07 15:29:31,382 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-07 15:29:31,382 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-07 15:29:31,383 INFO L138 SettingsManager]: * Use SBE=true [2019-09-07 15:29:31,383 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-07 15:29:31,383 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-07 15:29:31,383 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-07 15:29:31,383 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-07 15:29:31,384 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-07 15:29:31,384 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-07 15:29:31,384 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-07 15:29:31,384 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-07 15:29:31,384 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-07 15:29:31,385 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-07 15:29:31,385 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-07 15:29:31,385 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-07 15:29:31,385 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-07 15:29:31,385 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-07 15:29:31,386 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-07 15:29:31,386 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-07 15:29:31,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-07 15:29:31,386 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-07 15:29:31,386 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-07 15:29:31,387 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-07 15:29:31,387 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-07 15:29:31,387 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-07 15:29:31,387 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-07 15:29:31,387 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-07 15:29:31,416 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-07 15:29:31,429 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-07 15:29:31,432 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-07 15:29:31,434 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-07 15:29:31,434 INFO L275 PluginConnector]: CDTParser initialized [2019-09-07 15:29:31,435 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem06_label58.c [2019-09-07 15:29:31,494 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79b142b67/a52cb017e5a642219c9d17048ff8a92d/FLAG3a3d43b29 [2019-09-07 15:29:32,488 INFO L306 CDTParser]: Found 1 translation units. [2019-09-07 15:29:32,489 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem06_label58.c [2019-09-07 15:29:32,538 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79b142b67/a52cb017e5a642219c9d17048ff8a92d/FLAG3a3d43b29 [2019-09-07 15:29:32,830 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79b142b67/a52cb017e5a642219c9d17048ff8a92d [2019-09-07 15:29:32,847 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-07 15:29:32,849 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-07 15:29:32,853 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-07 15:29:32,854 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-07 15:29:32,858 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-07 15:29:32,859 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 03:29:32" (1/1) ... [2019-09-07 15:29:32,862 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54ae16a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:29:32, skipping insertion in model container [2019-09-07 15:29:32,863 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 03:29:32" (1/1) ... [2019-09-07 15:29:32,898 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-07 15:29:33,160 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-07 15:29:35,360 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-07 15:29:35,370 INFO L188 MainTranslator]: Completed pre-run [2019-09-07 15:29:36,613 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-07 15:29:36,677 INFO L192 MainTranslator]: Completed translation [2019-09-07 15:29:36,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:29:36 WrapperNode [2019-09-07 15:29:36,678 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-07 15:29:36,679 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-07 15:29:36,680 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-07 15:29:36,680 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-07 15:29:36,695 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:29:36" (1/1) ... [2019-09-07 15:29:36,696 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:29:36" (1/1) ... [2019-09-07 15:29:36,792 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:29:36" (1/1) ... [2019-09-07 15:29:36,794 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:29:36" (1/1) ... [2019-09-07 15:29:37,147 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:29:36" (1/1) ... [2019-09-07 15:29:37,193 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:29:36" (1/1) ... [2019-09-07 15:29:37,247 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:29:36" (1/1) ... [2019-09-07 15:29:37,311 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-07 15:29:37,312 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-07 15:29:37,312 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-07 15:29:37,313 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-07 15:29:37,314 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:29:36" (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 15:29:37,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-07 15:29:37,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-07 15:29:37,388 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-09-07 15:29:37,388 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2019-09-07 15:29:37,389 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2019-09-07 15:29:37,389 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2019-09-07 15:29:37,389 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2019-09-07 15:29:37,389 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-07 15:29:37,389 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-09-07 15:29:37,390 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2019-09-07 15:29:37,390 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2019-09-07 15:29:37,390 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2019-09-07 15:29:37,390 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2019-09-07 15:29:37,390 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-07 15:29:37,391 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-07 15:29:37,391 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-07 15:29:37,391 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-07 15:29:37,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-07 15:29:37,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-07 15:29:45,059 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-07 15:29:45,060 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-07 15:29:45,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 03:29:45 BoogieIcfgContainer [2019-09-07 15:29:45,062 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-07 15:29:45,069 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-07 15:29:45,069 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-07 15:29:45,073 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-07 15:29:45,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.09 03:29:32" (1/3) ... [2019-09-07 15:29:45,074 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61a68b23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 03:29:45, skipping insertion in model container [2019-09-07 15:29:45,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:29:36" (2/3) ... [2019-09-07 15:29:45,074 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61a68b23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 03:29:45, skipping insertion in model container [2019-09-07 15:29:45,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 03:29:45" (3/3) ... [2019-09-07 15:29:45,076 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem06_label58.c [2019-09-07 15:29:45,085 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-07 15:29:45,095 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-07 15:29:45,111 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-07 15:29:45,153 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-07 15:29:45,153 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-07 15:29:45,154 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-07 15:29:45,154 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-07 15:29:45,154 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-07 15:29:45,154 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-07 15:29:45,154 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-07 15:29:45,154 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-07 15:29:45,155 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-07 15:29:45,194 INFO L276 IsEmpty]: Start isEmpty. Operand 1315 states. [2019-09-07 15:29:45,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 969 [2019-09-07 15:29:45,263 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 15:29:45,266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:29:45,268 INFO L418 AbstractCegarLoop]: === Iteration 1 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 15:29:45,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 15:29:45,274 INFO L82 PathProgramCache]: Analyzing trace with hash -704078729, now seen corresponding path program 1 times [2019-09-07 15:29:45,276 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 15:29:45,277 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 15:29:45,332 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 15:29:45,332 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 15:29:45,332 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 15:29:46,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 15:29:48,207 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 15:29:48,209 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 15:29:48,210 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-07 15:29:48,216 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-07 15:29:48,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-07 15:29:48,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-07 15:29:48,229 INFO L87 Difference]: Start difference. First operand 1315 states. Second operand 3 states. [2019-09-07 15:29:54,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 15:29:54,976 INFO L93 Difference]: Finished difference Result 3730 states and 6979 transitions. [2019-09-07 15:29:54,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-07 15:29:54,980 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 968 [2019-09-07 15:29:54,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 15:29:55,025 INFO L225 Difference]: With dead ends: 3730 [2019-09-07 15:29:55,025 INFO L226 Difference]: Without dead ends: 2353 [2019-09-07 15:29:55,035 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-07 15:29:55,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2353 states. [2019-09-07 15:29:55,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2353 to 2331. [2019-09-07 15:29:55,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2331 states. [2019-09-07 15:29:55,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2331 states to 2331 states and 4080 transitions. [2019-09-07 15:29:55,227 INFO L78 Accepts]: Start accepts. Automaton has 2331 states and 4080 transitions. Word has length 968 [2019-09-07 15:29:55,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 15:29:55,230 INFO L475 AbstractCegarLoop]: Abstraction has 2331 states and 4080 transitions. [2019-09-07 15:29:55,230 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-07 15:29:55,231 INFO L276 IsEmpty]: Start isEmpty. Operand 2331 states and 4080 transitions. [2019-09-07 15:29:55,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 997 [2019-09-07 15:29:55,278 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 15:29:55,279 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:29:55,279 INFO L418 AbstractCegarLoop]: === Iteration 2 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 15:29:55,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 15:29:55,280 INFO L82 PathProgramCache]: Analyzing trace with hash 1007811443, now seen corresponding path program 1 times [2019-09-07 15:29:55,280 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 15:29:55,280 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 15:29:55,282 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 15:29:55,282 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 15:29:55,282 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 15:29:55,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 15:29:57,294 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 15:29:57,295 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 15:29:57,295 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-07 15:29:57,298 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-07 15:29:57,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-07 15:29:57,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-07 15:29:57,299 INFO L87 Difference]: Start difference. First operand 2331 states and 4080 transitions. Second operand 3 states. [2019-09-07 15:30:02,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 15:30:02,683 INFO L93 Difference]: Finished difference Result 6763 states and 11977 transitions. [2019-09-07 15:30:02,683 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-07 15:30:02,683 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 996 [2019-09-07 15:30:02,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 15:30:02,715 INFO L225 Difference]: With dead ends: 6763 [2019-09-07 15:30:02,716 INFO L226 Difference]: Without dead ends: 4438 [2019-09-07 15:30:02,723 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-07 15:30:02,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4438 states. [2019-09-07 15:30:02,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4438 to 4427. [2019-09-07 15:30:02,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4427 states. [2019-09-07 15:30:02,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4427 states to 4427 states and 7235 transitions. [2019-09-07 15:30:02,862 INFO L78 Accepts]: Start accepts. Automaton has 4427 states and 7235 transitions. Word has length 996 [2019-09-07 15:30:02,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 15:30:02,864 INFO L475 AbstractCegarLoop]: Abstraction has 4427 states and 7235 transitions. [2019-09-07 15:30:02,864 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-07 15:30:02,864 INFO L276 IsEmpty]: Start isEmpty. Operand 4427 states and 7235 transitions. [2019-09-07 15:30:02,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1013 [2019-09-07 15:30:02,890 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 15:30:02,891 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:30:02,892 INFO L418 AbstractCegarLoop]: === Iteration 3 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 15:30:02,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 15:30:02,893 INFO L82 PathProgramCache]: Analyzing trace with hash 36893326, now seen corresponding path program 1 times [2019-09-07 15:30:02,893 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 15:30:02,894 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 15:30:02,895 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 15:30:02,896 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 15:30:02,896 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 15:30:03,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 15:30:03,622 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 48 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 15:30:03,622 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 15:30:03,622 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) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 15:30:03,635 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 15:30:04,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 15:30:04,158 INFO L256 TraceCheckSpWp]: Trace formula consists of 2326 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-07 15:30:04,204 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 15:30:05,002 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 48 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 15:30:05,009 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 15:30:05,009 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2019-09-07 15:30:05,013 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-07 15:30:05,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-07 15:30:05,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-09-07 15:30:05,013 INFO L87 Difference]: Start difference. First operand 4427 states and 7235 transitions. Second operand 9 states. [2019-09-07 15:30:38,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 15:30:38,731 INFO L93 Difference]: Finished difference Result 31176 states and 58899 transitions. [2019-09-07 15:30:38,732 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2019-09-07 15:30:38,733 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1012 [2019-09-07 15:30:38,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 15:30:38,932 INFO L225 Difference]: With dead ends: 31176 [2019-09-07 15:30:38,933 INFO L226 Difference]: Without dead ends: 26755 [2019-09-07 15:30:38,967 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 1070 GetRequests, 1031 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 470 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=324, Invalid=1316, Unknown=0, NotChecked=0, Total=1640 [2019-09-07 15:30:38,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26755 states. [2019-09-07 15:30:39,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26755 to 26352. [2019-09-07 15:30:39,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26352 states. [2019-09-07 15:30:39,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26352 states to 26352 states and 41077 transitions. [2019-09-07 15:30:39,992 INFO L78 Accepts]: Start accepts. Automaton has 26352 states and 41077 transitions. Word has length 1012 [2019-09-07 15:30:39,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 15:30:39,993 INFO L475 AbstractCegarLoop]: Abstraction has 26352 states and 41077 transitions. [2019-09-07 15:30:39,993 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-07 15:30:39,993 INFO L276 IsEmpty]: Start isEmpty. Operand 26352 states and 41077 transitions. [2019-09-07 15:30:40,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1026 [2019-09-07 15:30:40,320 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 15:30:40,320 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:30:40,321 INFO L418 AbstractCegarLoop]: === Iteration 4 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 15:30:40,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 15:30:40,322 INFO L82 PathProgramCache]: Analyzing trace with hash -560191941, now seen corresponding path program 1 times [2019-09-07 15:30:40,322 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 15:30:40,322 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 15:30:40,326 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 15:30:40,327 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 15:30:40,327 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 15:30:40,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 15:30:41,318 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 15:30:41,318 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 15:30:41,319 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-07 15:30:41,320 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-07 15:30:41,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-07 15:30:41,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-09-07 15:30:41,320 INFO L87 Difference]: Start difference. First operand 26352 states and 41077 transitions. Second operand 6 states. [2019-09-07 15:30:49,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 15:30:49,630 INFO L93 Difference]: Finished difference Result 66697 states and 113795 transitions. [2019-09-07 15:30:49,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-07 15:30:49,631 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 1025 [2019-09-07 15:30:49,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 15:30:49,839 INFO L225 Difference]: With dead ends: 66697 [2019-09-07 15:30:49,839 INFO L226 Difference]: Without dead ends: 40351 [2019-09-07 15:30:49,950 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 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 15:30:50,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40351 states. [2019-09-07 15:30:52,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40351 to 39996. [2019-09-07 15:30:52,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39996 states. [2019-09-07 15:30:52,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39996 states to 39996 states and 60640 transitions. [2019-09-07 15:30:52,540 INFO L78 Accepts]: Start accepts. Automaton has 39996 states and 60640 transitions. Word has length 1025 [2019-09-07 15:30:52,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 15:30:52,541 INFO L475 AbstractCegarLoop]: Abstraction has 39996 states and 60640 transitions. [2019-09-07 15:30:52,541 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-07 15:30:52,541 INFO L276 IsEmpty]: Start isEmpty. Operand 39996 states and 60640 transitions. [2019-09-07 15:30:52,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1038 [2019-09-07 15:30:52,717 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 15:30:52,718 INFO L399 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:30:52,718 INFO L418 AbstractCegarLoop]: === Iteration 5 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 15:30:52,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 15:30:52,719 INFO L82 PathProgramCache]: Analyzing trace with hash 1689136376, now seen corresponding path program 1 times [2019-09-07 15:30:52,719 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 15:30:52,719 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 15:30:52,721 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 15:30:52,721 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 15:30:52,722 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 15:30:52,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 15:30:53,908 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 73 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 15:30:53,910 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 15:30:53,910 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) [2019-09-07 15:30:53,924 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 15:30:54,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 15:30:54,443 INFO L256 TraceCheckSpWp]: Trace formula consists of 2354 conjuncts, 12 conjunts are in the unsatisfiable core [2019-09-07 15:30:54,466 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 15:30:55,693 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-09-07 15:30:55,698 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-07 15:30:55,699 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2019-09-07 15:30:55,701 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-07 15:30:55,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-07 15:30:55,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-09-07 15:30:55,701 INFO L87 Difference]: Start difference. First operand 39996 states and 60640 transitions. Second operand 7 states. [2019-09-07 15:31:13,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 15:31:13,052 INFO L93 Difference]: Finished difference Result 142997 states and 255930 transitions. [2019-09-07 15:31:13,052 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-09-07 15:31:13,052 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1037 [2019-09-07 15:31:13,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 15:31:13,600 INFO L225 Difference]: With dead ends: 142997 [2019-09-07 15:31:13,601 INFO L226 Difference]: Without dead ends: 103007 [2019-09-07 15:31:13,733 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 1058 GetRequests, 1045 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2019-09-07 15:31:13,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103007 states. [2019-09-07 15:31:18,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103007 to 102376. [2019-09-07 15:31:18,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102376 states. [2019-09-07 15:31:19,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102376 states to 102376 states and 158273 transitions. [2019-09-07 15:31:19,066 INFO L78 Accepts]: Start accepts. Automaton has 102376 states and 158273 transitions. Word has length 1037 [2019-09-07 15:31:19,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 15:31:19,067 INFO L475 AbstractCegarLoop]: Abstraction has 102376 states and 158273 transitions. [2019-09-07 15:31:19,068 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-07 15:31:19,068 INFO L276 IsEmpty]: Start isEmpty. Operand 102376 states and 158273 transitions. [2019-09-07 15:31:19,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1054 [2019-09-07 15:31:19,491 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 15:31:19,492 INFO L399 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:31:19,492 INFO L418 AbstractCegarLoop]: === Iteration 6 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 15:31:19,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 15:31:19,493 INFO L82 PathProgramCache]: Analyzing trace with hash 2049114836, now seen corresponding path program 1 times [2019-09-07 15:31:19,493 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 15:31:19,493 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 15:31:19,494 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 15:31:19,494 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 15:31:19,494 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 15:31:19,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 15:31:20,723 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 69 proven. 36 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2019-09-07 15:31:20,724 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 15:31:20,724 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 15:31:20,742 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 15:31:21,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 15:31:21,911 INFO L256 TraceCheckSpWp]: Trace formula consists of 2684 conjuncts, 6 conjunts are in the unsatisfiable core [2019-09-07 15:31:21,928 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 15:31:22,486 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2019-09-07 15:31:22,493 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-07 15:31:22,493 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2019-09-07 15:31:22,495 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-07 15:31:22,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-07 15:31:22,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2019-09-07 15:31:22,496 INFO L87 Difference]: Start difference. First operand 102376 states and 158273 transitions. Second operand 9 states. [2019-09-07 15:31:35,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 15:31:35,763 INFO L93 Difference]: Finished difference Result 256529 states and 430670 transitions. [2019-09-07 15:31:35,763 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-09-07 15:31:35,763 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1053 [2019-09-07 15:31:35,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 15:31:36,481 INFO L225 Difference]: With dead ends: 256529 [2019-09-07 15:31:36,481 INFO L226 Difference]: Without dead ends: 154159 [2019-09-07 15:31:36,682 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 1082 GetRequests, 1063 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2019-09-07 15:31:36,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154159 states. [2019-09-07 15:31:43,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154159 to 153438. [2019-09-07 15:31:43,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153438 states. [2019-09-07 15:31:43,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153438 states to 153438 states and 238842 transitions. [2019-09-07 15:31:43,622 INFO L78 Accepts]: Start accepts. Automaton has 153438 states and 238842 transitions. Word has length 1053 [2019-09-07 15:31:43,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 15:31:43,622 INFO L475 AbstractCegarLoop]: Abstraction has 153438 states and 238842 transitions. [2019-09-07 15:31:43,622 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-07 15:31:43,622 INFO L276 IsEmpty]: Start isEmpty. Operand 153438 states and 238842 transitions. [2019-09-07 15:31:44,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1067 [2019-09-07 15:31:44,045 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 15:31:44,045 INFO L399 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:31:44,046 INFO L418 AbstractCegarLoop]: === Iteration 7 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 15:31:44,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 15:31:44,046 INFO L82 PathProgramCache]: Analyzing trace with hash -1059809021, now seen corresponding path program 1 times [2019-09-07 15:31:44,047 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 15:31:44,047 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 15:31:44,048 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 15:31:44,048 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 15:31:44,048 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 15:31:44,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 15:31:46,378 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 123 proven. 28 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2019-09-07 15:31:46,378 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 15:31:46,379 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) [2019-09-07 15:31:46,406 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 15:31:46,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 15:31:46,954 INFO L256 TraceCheckSpWp]: Trace formula consists of 2851 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-07 15:31:46,969 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 15:31:50,732 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 154 proven. 2 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2019-09-07 15:31:50,739 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 15:31:50,740 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2019-09-07 15:31:50,741 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-07 15:31:50,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-07 15:31:50,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-09-07 15:31:50,742 INFO L87 Difference]: Start difference. First operand 153438 states and 238842 transitions. Second operand 9 states. [2019-09-07 15:32:48,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 15:32:48,165 INFO L93 Difference]: Finished difference Result 673644 states and 2005138 transitions. [2019-09-07 15:32:48,166 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2019-09-07 15:32:48,166 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1066 [2019-09-07 15:32:48,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 15:32:54,623 INFO L225 Difference]: With dead ends: 673644 [2019-09-07 15:32:54,624 INFO L226 Difference]: Without dead ends: 520212 [2019-09-07 15:32:55,350 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 1158 GetRequests, 1105 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 991 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=569, Invalid=2401, Unknown=0, NotChecked=0, Total=2970 [2019-09-07 15:32:55,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520212 states. [2019-09-07 15:33:29,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520212 to 503953. [2019-09-07 15:33:29,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 503953 states. [2019-09-07 15:33:43,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503953 states to 503953 states and 894441 transitions. [2019-09-07 15:33:43,152 INFO L78 Accepts]: Start accepts. Automaton has 503953 states and 894441 transitions. Word has length 1066 [2019-09-07 15:33:43,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 15:33:43,153 INFO L475 AbstractCegarLoop]: Abstraction has 503953 states and 894441 transitions. [2019-09-07 15:33:43,153 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-07 15:33:43,153 INFO L276 IsEmpty]: Start isEmpty. Operand 503953 states and 894441 transitions. [2019-09-07 15:33:46,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1081 [2019-09-07 15:33:46,887 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 15:33:46,888 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:33:46,888 INFO L418 AbstractCegarLoop]: === Iteration 8 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 15:33:46,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 15:33:46,889 INFO L82 PathProgramCache]: Analyzing trace with hash -1547664148, now seen corresponding path program 1 times [2019-09-07 15:33:46,889 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 15:33:46,889 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 15:33:46,889 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 15:33:46,889 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 15:33:46,890 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 15:33:46,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 15:33:49,564 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 113 proven. 10 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-09-07 15:33:49,565 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 15:33:49,565 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 15:33:49,577 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 15:33:50,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 15:33:50,139 INFO L256 TraceCheckSpWp]: Trace formula consists of 2555 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-07 15:33:50,154 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 15:33:58,057 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 121 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-09-07 15:33:58,063 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 15:33:58,064 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2019-09-07 15:33:58,065 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-07 15:33:58,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-07 15:33:58,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-09-07 15:33:58,066 INFO L87 Difference]: Start difference. First operand 503953 states and 894441 transitions. Second operand 8 states. [2019-09-07 15:34:31,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 15:34:31,815 INFO L93 Difference]: Finished difference Result 1082535 states and 2068850 transitions. [2019-09-07 15:34:31,816 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-09-07 15:34:31,816 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1080 [2019-09-07 15:34:31,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 15:34:45,566 INFO L225 Difference]: With dead ends: 1082535 [2019-09-07 15:34:45,566 INFO L226 Difference]: Without dead ends: 578588 [2019-09-07 15:34:46,500 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 1106 GetRequests, 1089 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2019-09-07 15:34:47,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578588 states. [2019-09-07 15:35:00,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578588 to 577539. [2019-09-07 15:35:00,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 577539 states. [2019-09-07 15:35:19,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577539 states to 577539 states and 1063449 transitions. [2019-09-07 15:35:19,085 INFO L78 Accepts]: Start accepts. Automaton has 577539 states and 1063449 transitions. Word has length 1080 [2019-09-07 15:35:19,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 15:35:19,085 INFO L475 AbstractCegarLoop]: Abstraction has 577539 states and 1063449 transitions. [2019-09-07 15:35:19,086 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-07 15:35:19,086 INFO L276 IsEmpty]: Start isEmpty. Operand 577539 states and 1063449 transitions. [2019-09-07 15:35:34,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1108 [2019-09-07 15:35:34,147 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 15:35:34,148 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:35:34,148 INFO L418 AbstractCegarLoop]: === Iteration 9 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 15:35:34,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 15:35:34,148 INFO L82 PathProgramCache]: Analyzing trace with hash -211535230, now seen corresponding path program 1 times [2019-09-07 15:35:34,148 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 15:35:34,148 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 15:35:34,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 15:35:34,149 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 15:35:34,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 15:35:34,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 15:35:35,579 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 15:35:35,579 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 15:35:35,579 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-07 15:35:35,581 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-07 15:35:35,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-07 15:35:35,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2019-09-07 15:35:35,581 INFO L87 Difference]: Start difference. First operand 577539 states and 1063449 transitions. Second operand 7 states. [2019-09-07 15:36:53,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 15:36:53,119 INFO L93 Difference]: Finished difference Result 1681281 states and 4195415 transitions. [2019-09-07 15:36:53,120 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-07 15:36:53,120 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1107 [2019-09-07 15:36:53,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 15:37:12,884 INFO L225 Difference]: With dead ends: 1681281 [2019-09-07 15:37:12,884 INFO L226 Difference]: Without dead ends: 1103748 [2019-09-07 15:37:14,657 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2019-09-07 15:37:34,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1103748 states.