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/Problem04_label14.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-07 13:42:01,316 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-07 13:42:01,319 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-07 13:42:01,336 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-07 13:42:01,336 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-07 13:42:01,337 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-07 13:42:01,339 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-07 13:42:01,350 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-07 13:42:01,352 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-07 13:42:01,353 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-07 13:42:01,356 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-07 13:42:01,357 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-07 13:42:01,357 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-07 13:42:01,359 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-07 13:42:01,360 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-07 13:42:01,361 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-07 13:42:01,362 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-07 13:42:01,363 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-07 13:42:01,365 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-07 13:42:01,370 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-07 13:42:01,372 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-07 13:42:01,373 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-07 13:42:01,375 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-07 13:42:01,376 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-07 13:42:01,378 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-07 13:42:01,378 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-07 13:42:01,379 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-07 13:42:01,383 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-07 13:42:01,384 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-07 13:42:01,385 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-07 13:42:01,386 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-07 13:42:01,388 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-07 13:42:01,388 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-07 13:42:01,389 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-07 13:42:01,392 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-07 13:42:01,392 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-07 13:42:01,393 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-07 13:42:01,393 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-07 13:42:01,393 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-07 13:42:01,394 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-07 13:42:01,395 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-07 13:42:01,396 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 13:42:01,415 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-07 13:42:01,415 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-07 13:42:01,418 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-07 13:42:01,418 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-07 13:42:01,418 INFO L138 SettingsManager]: * Use SBE=true [2019-09-07 13:42:01,419 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-07 13:42:01,419 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-07 13:42:01,419 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-07 13:42:01,419 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-07 13:42:01,420 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-07 13:42:01,421 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-07 13:42:01,421 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-07 13:42:01,421 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-07 13:42:01,422 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-07 13:42:01,422 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-07 13:42:01,422 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-07 13:42:01,422 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-07 13:42:01,422 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-07 13:42:01,423 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-07 13:42:01,423 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-07 13:42:01,423 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-07 13:42:01,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-07 13:42:01,424 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-07 13:42:01,424 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-07 13:42:01,424 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-07 13:42:01,424 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-07 13:42:01,425 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-07 13:42:01,425 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-07 13:42:01,425 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-07 13:42:01,460 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-07 13:42:01,471 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-07 13:42:01,475 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-07 13:42:01,477 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-07 13:42:01,477 INFO L275 PluginConnector]: CDTParser initialized [2019-09-07 13:42:01,478 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem04_label14.c [2019-09-07 13:42:01,548 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f777f3f3/8bf244d5a13841889385a0b08b1ce322/FLAG35e57705b [2019-09-07 13:42:02,342 INFO L306 CDTParser]: Found 1 translation units. [2019-09-07 13:42:02,343 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem04_label14.c [2019-09-07 13:42:02,377 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f777f3f3/8bf244d5a13841889385a0b08b1ce322/FLAG35e57705b [2019-09-07 13:42:02,446 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f777f3f3/8bf244d5a13841889385a0b08b1ce322 [2019-09-07 13:42:02,457 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-07 13:42:02,461 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-07 13:42:02,462 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-07 13:42:02,462 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-07 13:42:02,465 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-07 13:42:02,467 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 01:42:02" (1/1) ... [2019-09-07 13:42:02,470 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@374b1c44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:42:02, skipping insertion in model container [2019-09-07 13:42:02,470 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 01:42:02" (1/1) ... [2019-09-07 13:42:02,478 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-07 13:42:02,643 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-07 13:42:04,083 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-07 13:42:04,088 INFO L188 MainTranslator]: Completed pre-run [2019-09-07 13:42:04,816 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-07 13:42:04,850 INFO L192 MainTranslator]: Completed translation [2019-09-07 13:42:04,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:42:04 WrapperNode [2019-09-07 13:42:04,852 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-07 13:42:04,853 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-07 13:42:04,853 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-07 13:42:04,853 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-07 13:42:04,867 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:42:04" (1/1) ... [2019-09-07 13:42:04,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:42:04" (1/1) ... [2019-09-07 13:42:04,927 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:42:04" (1/1) ... [2019-09-07 13:42:04,927 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:42:04" (1/1) ... [2019-09-07 13:42:05,041 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:42:04" (1/1) ... [2019-09-07 13:42:05,082 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:42:04" (1/1) ... [2019-09-07 13:42:05,109 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:42:04" (1/1) ... [2019-09-07 13:42:05,135 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-07 13:42:05,136 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-07 13:42:05,136 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-07 13:42:05,136 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-07 13:42:05,137 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:42:04" (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 13:42:05,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-07 13:42:05,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-07 13:42:05,221 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-09-07 13:42:05,221 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2019-09-07 13:42:05,222 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2019-09-07 13:42:05,222 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2019-09-07 13:42:05,222 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-07 13:42:05,222 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-09-07 13:42:05,222 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2019-09-07 13:42:05,223 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2019-09-07 13:42:05,223 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2019-09-07 13:42:05,223 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-07 13:42:05,224 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-07 13:42:05,224 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-07 13:42:05,225 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-07 13:42:05,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-07 13:42:05,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-07 13:42:09,846 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-07 13:42:09,846 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-07 13:42:09,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 01:42:09 BoogieIcfgContainer [2019-09-07 13:42:09,850 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-07 13:42:09,851 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-07 13:42:09,851 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-07 13:42:09,854 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-07 13:42:09,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.09 01:42:02" (1/3) ... [2019-09-07 13:42:09,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29cfd58c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 01:42:09, skipping insertion in model container [2019-09-07 13:42:09,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:42:04" (2/3) ... [2019-09-07 13:42:09,856 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29cfd58c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 01:42:09, skipping insertion in model container [2019-09-07 13:42:09,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 01:42:09" (3/3) ... [2019-09-07 13:42:09,864 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem04_label14.c [2019-09-07 13:42:09,877 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-07 13:42:09,888 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-07 13:42:09,905 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-07 13:42:09,958 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-07 13:42:09,959 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-07 13:42:09,959 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-07 13:42:09,959 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-07 13:42:09,959 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-07 13:42:09,959 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-07 13:42:09,959 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-07 13:42:09,960 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-07 13:42:09,960 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-07 13:42:09,997 INFO L276 IsEmpty]: Start isEmpty. Operand 906 states. [2019-09-07 13:42:10,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 789 [2019-09-07 13:42:10,046 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:42:10,048 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] [2019-09-07 13:42:10,051 INFO L418 AbstractCegarLoop]: === Iteration 1 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:42:10,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:42:10,057 INFO L82 PathProgramCache]: Analyzing trace with hash -600416637, now seen corresponding path program 1 times [2019-09-07 13:42:10,059 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:42:10,060 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:42:10,115 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:42:10,115 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:42:10,115 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:42:10,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:42:12,455 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 13:42:12,458 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 13:42:12,459 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-07 13:42:12,465 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-07 13:42:12,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-07 13:42:12,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-07 13:42:12,482 INFO L87 Difference]: Start difference. First operand 906 states. Second operand 3 states. [2019-09-07 13:42:16,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:42:16,704 INFO L93 Difference]: Finished difference Result 2644 states and 5099 transitions. [2019-09-07 13:42:16,706 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-07 13:42:16,708 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 788 [2019-09-07 13:42:16,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:42:16,743 INFO L225 Difference]: With dead ends: 2644 [2019-09-07 13:42:16,743 INFO L226 Difference]: Without dead ends: 1676 [2019-09-07 13:42:16,753 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 5 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 13:42:16,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1676 states. [2019-09-07 13:42:16,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1676 to 1676. [2019-09-07 13:42:16,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1676 states. [2019-09-07 13:42:16,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1676 states to 1676 states and 3124 transitions. [2019-09-07 13:42:16,938 INFO L78 Accepts]: Start accepts. Automaton has 1676 states and 3124 transitions. Word has length 788 [2019-09-07 13:42:16,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:42:16,942 INFO L475 AbstractCegarLoop]: Abstraction has 1676 states and 3124 transitions. [2019-09-07 13:42:16,943 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-07 13:42:16,943 INFO L276 IsEmpty]: Start isEmpty. Operand 1676 states and 3124 transitions. [2019-09-07 13:42:16,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 797 [2019-09-07 13:42:16,978 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:42:16,978 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-07 13:42:16,979 INFO L418 AbstractCegarLoop]: === Iteration 2 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:42:16,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:42:16,981 INFO L82 PathProgramCache]: Analyzing trace with hash -326012078, now seen corresponding path program 1 times [2019-09-07 13:42:16,981 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:42:16,981 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:42:16,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:42:16,983 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:42:16,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:42:17,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:42:18,041 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 13:42:18,042 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 13:42:18,042 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-07 13:42:18,045 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-07 13:42:18,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-07 13:42:18,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-09-07 13:42:18,046 INFO L87 Difference]: Start difference. First operand 1676 states and 3124 transitions. Second operand 4 states. [2019-09-07 13:42:24,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:42:24,845 INFO L93 Difference]: Finished difference Result 6682 states and 12604 transitions. [2019-09-07 13:42:24,846 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-07 13:42:24,846 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 796 [2019-09-07 13:42:24,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:42:24,883 INFO L225 Difference]: With dead ends: 6682 [2019-09-07 13:42:24,883 INFO L226 Difference]: Without dead ends: 5012 [2019-09-07 13:42:24,889 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 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 13:42:24,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5012 states. [2019-09-07 13:42:25,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5012 to 5012. [2019-09-07 13:42:25,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5012 states. [2019-09-07 13:42:25,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5012 states to 5012 states and 8282 transitions. [2019-09-07 13:42:25,043 INFO L78 Accepts]: Start accepts. Automaton has 5012 states and 8282 transitions. Word has length 796 [2019-09-07 13:42:25,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:42:25,045 INFO L475 AbstractCegarLoop]: Abstraction has 5012 states and 8282 transitions. [2019-09-07 13:42:25,045 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-07 13:42:25,045 INFO L276 IsEmpty]: Start isEmpty. Operand 5012 states and 8282 transitions. [2019-09-07 13:42:25,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 808 [2019-09-07 13:42:25,064 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:42:25,065 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-07 13:42:25,065 INFO L418 AbstractCegarLoop]: === Iteration 3 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:42:25,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:42:25,066 INFO L82 PathProgramCache]: Analyzing trace with hash 1996776468, now seen corresponding path program 1 times [2019-09-07 13:42:25,066 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:42:25,066 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:42:25,067 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:42:25,068 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:42:25,068 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:42:25,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:42:27,036 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-07 13:42:27,036 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:42:27,037 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 13:42:27,056 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:42:27,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:42:27,327 INFO L256 TraceCheckSpWp]: Trace formula consists of 1130 conjuncts, 10 conjunts are in the unsatisfiable core [2019-09-07 13:42:27,374 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:42:28,226 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 13:42:28,232 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-07 13:42:28,232 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2019-09-07 13:42:28,236 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-07 13:42:28,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-07 13:42:28,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-09-07 13:42:28,238 INFO L87 Difference]: Start difference. First operand 5012 states and 8282 transitions. Second operand 5 states. [2019-09-07 13:42:34,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:42:34,423 INFO L93 Difference]: Finished difference Result 15163 states and 25770 transitions. [2019-09-07 13:42:34,423 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-07 13:42:34,423 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 807 [2019-09-07 13:42:34,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:42:34,481 INFO L225 Difference]: With dead ends: 15163 [2019-09-07 13:42:34,482 INFO L226 Difference]: Without dead ends: 10157 [2019-09-07 13:42:34,497 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 819 GetRequests, 808 SyntacticMatches, 7 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-09-07 13:42:34,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10157 states. [2019-09-07 13:42:34,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10157 to 10083. [2019-09-07 13:42:34,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10083 states. [2019-09-07 13:42:34,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10083 states to 10083 states and 16229 transitions. [2019-09-07 13:42:34,839 INFO L78 Accepts]: Start accepts. Automaton has 10083 states and 16229 transitions. Word has length 807 [2019-09-07 13:42:34,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:42:34,842 INFO L475 AbstractCegarLoop]: Abstraction has 10083 states and 16229 transitions. [2019-09-07 13:42:34,842 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-07 13:42:34,842 INFO L276 IsEmpty]: Start isEmpty. Operand 10083 states and 16229 transitions. [2019-09-07 13:42:34,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 855 [2019-09-07 13:42:34,902 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:42:34,903 INFO L399 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:42:34,904 INFO L418 AbstractCegarLoop]: === Iteration 4 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:42:34,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:42:34,905 INFO L82 PathProgramCache]: Analyzing trace with hash -1181817229, now seen corresponding path program 1 times [2019-09-07 13:42:34,905 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:42:34,905 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:42:34,906 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:42:34,906 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:42:34,906 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:42:34,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:42:35,673 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 60 proven. 17 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-09-07 13:42:35,675 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:42:35,676 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 13:42:35,696 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:42:36,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:42:36,006 INFO L256 TraceCheckSpWp]: Trace formula consists of 1233 conjuncts, 6 conjunts are in the unsatisfiable core [2019-09-07 13:42:36,022 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:42:36,439 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2019-09-07 13:42:36,451 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-07 13:42:36,452 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2019-09-07 13:42:36,454 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-07 13:42:36,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-07 13:42:36,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2019-09-07 13:42:36,456 INFO L87 Difference]: Start difference. First operand 10083 states and 16229 transitions. Second operand 10 states. [2019-09-07 13:42:51,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:42:51,119 INFO L93 Difference]: Finished difference Result 41337 states and 73759 transitions. [2019-09-07 13:42:51,120 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2019-09-07 13:42:51,120 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 854 [2019-09-07 13:42:51,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:42:51,313 INFO L225 Difference]: With dead ends: 41337 [2019-09-07 13:42:51,313 INFO L226 Difference]: Without dead ends: 31260 [2019-09-07 13:42:51,360 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 935 GetRequests, 886 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 788 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=517, Invalid=1933, Unknown=0, NotChecked=0, Total=2450 [2019-09-07 13:42:51,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31260 states. [2019-09-07 13:42:52,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31260 to 27565. [2019-09-07 13:42:52,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27565 states. [2019-09-07 13:42:52,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27565 states to 27565 states and 41307 transitions. [2019-09-07 13:42:52,402 INFO L78 Accepts]: Start accepts. Automaton has 27565 states and 41307 transitions. Word has length 854 [2019-09-07 13:42:52,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:42:52,402 INFO L475 AbstractCegarLoop]: Abstraction has 27565 states and 41307 transitions. [2019-09-07 13:42:52,402 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-07 13:42:52,403 INFO L276 IsEmpty]: Start isEmpty. Operand 27565 states and 41307 transitions. [2019-09-07 13:42:52,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 896 [2019-09-07 13:42:52,483 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:42:52,484 INFO L399 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2019-09-07 13:42:52,484 INFO L418 AbstractCegarLoop]: === Iteration 5 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:42:52,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:42:52,485 INFO L82 PathProgramCache]: Analyzing trace with hash 919351793, now seen corresponding path program 1 times [2019-09-07 13:42:52,485 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:42:52,485 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:42:52,486 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:42:52,487 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:42:52,487 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:42:52,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:42:53,214 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 116 proven. 28 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2019-09-07 13:42:53,214 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:42:53,215 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) [2019-09-07 13:42:53,242 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 13:42:53,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:42:53,547 INFO L256 TraceCheckSpWp]: Trace formula consists of 1385 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-07 13:42:53,562 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:42:54,031 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 149 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (4)] Exception during sending of exit command (exit): Stream closed [2019-09-07 13:42:54,047 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 13:42:54,048 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2019-09-07 13:42:54,052 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-07 13:42:54,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-07 13:42:54,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-09-07 13:42:54,053 INFO L87 Difference]: Start difference. First operand 27565 states and 41307 transitions. Second operand 9 states. [2019-09-07 13:43:10,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:43:10,055 INFO L93 Difference]: Finished difference Result 97319 states and 164347 transitions. [2019-09-07 13:43:10,056 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-09-07 13:43:10,056 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 895 [2019-09-07 13:43:10,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:43:10,387 INFO L225 Difference]: With dead ends: 97319 [2019-09-07 13:43:10,388 INFO L226 Difference]: Without dead ends: 69760 [2019-09-07 13:43:10,493 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 950 GetRequests, 918 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=250, Invalid=872, Unknown=0, NotChecked=0, Total=1122 [2019-09-07 13:43:10,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69760 states. [2019-09-07 13:43:14,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69760 to 60943. [2019-09-07 13:43:14,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60943 states. [2019-09-07 13:43:14,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60943 states to 60943 states and 87423 transitions. [2019-09-07 13:43:14,271 INFO L78 Accepts]: Start accepts. Automaton has 60943 states and 87423 transitions. Word has length 895 [2019-09-07 13:43:14,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:43:14,272 INFO L475 AbstractCegarLoop]: Abstraction has 60943 states and 87423 transitions. [2019-09-07 13:43:14,272 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-07 13:43:14,272 INFO L276 IsEmpty]: Start isEmpty. Operand 60943 states and 87423 transitions. [2019-09-07 13:43:14,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 919 [2019-09-07 13:43:14,403 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:43:14,404 INFO L399 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:43:14,405 INFO L418 AbstractCegarLoop]: === Iteration 6 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:43:14,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:43:14,406 INFO L82 PathProgramCache]: Analyzing trace with hash 1804302123, now seen corresponding path program 1 times [2019-09-07 13:43:14,406 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:43:14,406 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:43:14,407 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:43:14,407 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:43:14,407 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:43:14,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:43:15,299 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 125 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 13:43:15,299 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:43:15,299 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 13:43:15,315 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:43:15,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:43:15,581 INFO L256 TraceCheckSpWp]: Trace formula consists of 1300 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-07 13:43:15,595 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:43:16,775 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 141 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 13:43:16,792 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 13:43:16,793 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5] total 13 [2019-09-07 13:43:16,796 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-09-07 13:43:16,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-09-07 13:43:16,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-09-07 13:43:16,797 INFO L87 Difference]: Start difference. First operand 60943 states and 87423 transitions. Second operand 13 states. [2019-09-07 13:43:43,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:43:43,668 INFO L93 Difference]: Finished difference Result 161467 states and 253651 transitions. [2019-09-07 13:43:43,672 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2019-09-07 13:43:43,673 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 918 [2019-09-07 13:43:43,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:43:44,068 INFO L225 Difference]: With dead ends: 161467 [2019-09-07 13:43:44,069 INFO L226 Difference]: Without dead ends: 100530 [2019-09-07 13:43:44,228 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 1025 GetRequests, 953 SyntacticMatches, 1 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1792 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=939, Invalid=4317, Unknown=0, NotChecked=0, Total=5256 [2019-09-07 13:43:44,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100530 states. [2019-09-07 13:43:48,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100530 to 99346. [2019-09-07 13:43:48,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99346 states. [2019-09-07 13:43:48,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99346 states to 99346 states and 126614 transitions. [2019-09-07 13:43:48,829 INFO L78 Accepts]: Start accepts. Automaton has 99346 states and 126614 transitions. Word has length 918 [2019-09-07 13:43:48,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:43:48,830 INFO L475 AbstractCegarLoop]: Abstraction has 99346 states and 126614 transitions. [2019-09-07 13:43:48,830 INFO L476 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-09-07 13:43:48,830 INFO L276 IsEmpty]: Start isEmpty. Operand 99346 states and 126614 transitions. [2019-09-07 13:43:49,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1108 [2019-09-07 13:43:49,042 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:43:49,043 INFO L399 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:43:49,044 INFO L418 AbstractCegarLoop]: === Iteration 7 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:43:49,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:43:49,045 INFO L82 PathProgramCache]: Analyzing trace with hash -1033655857, now seen corresponding path program 1 times [2019-09-07 13:43:49,045 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:43:49,045 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:43:49,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:43:49,046 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:43:49,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:43:49,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:43:50,828 INFO L134 CoverageAnalysis]: Checked inductivity of 568 backedges. 316 proven. 223 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2019-09-07 13:43:50,829 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:43:50,829 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 13:43:50,840 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:43:51,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:43:51,180 INFO L256 TraceCheckSpWp]: Trace formula consists of 1595 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-07 13:43:51,191 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:43:51,648 INFO L134 CoverageAnalysis]: Checked inductivity of 568 backedges. 483 proven. 2 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2019-09-07 13:43:51,653 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 13:43:51,653 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5] total 13 [2019-09-07 13:43:51,655 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-09-07 13:43:51,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-09-07 13:43:51,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-09-07 13:43:51,656 INFO L87 Difference]: Start difference. First operand 99346 states and 126614 transitions. Second operand 13 states. [2019-09-07 13:44:08,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:44:08,683 INFO L93 Difference]: Finished difference Result 209429 states and 281370 transitions. [2019-09-07 13:44:08,683 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2019-09-07 13:44:08,683 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 1107 [2019-09-07 13:44:08,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:44:09,102 INFO L225 Difference]: With dead ends: 209429 [2019-09-07 13:44:09,102 INFO L226 Difference]: Without dead ends: 110089 [2019-09-07 13:44:09,290 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 1183 GetRequests, 1138 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 529 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=496, Invalid=1574, Unknown=0, NotChecked=0, Total=2070 [2019-09-07 13:44:09,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110089 states. [2019-09-07 13:44:11,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110089 to 109276. [2019-09-07 13:44:11,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109276 states. [2019-09-07 13:44:11,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109276 states to 109276 states and 138375 transitions. [2019-09-07 13:44:11,655 INFO L78 Accepts]: Start accepts. Automaton has 109276 states and 138375 transitions. Word has length 1107 [2019-09-07 13:44:11,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:44:11,656 INFO L475 AbstractCegarLoop]: Abstraction has 109276 states and 138375 transitions. [2019-09-07 13:44:11,656 INFO L476 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-09-07 13:44:11,656 INFO L276 IsEmpty]: Start isEmpty. Operand 109276 states and 138375 transitions. [2019-09-07 13:44:12,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1212 [2019-09-07 13:44:12,055 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:44:12,056 INFO L399 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:44:12,058 INFO L418 AbstractCegarLoop]: === Iteration 8 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:44:12,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:44:12,059 INFO L82 PathProgramCache]: Analyzing trace with hash 1039838122, now seen corresponding path program 1 times [2019-09-07 13:44:12,059 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:44:12,059 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:44:12,061 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:44:12,061 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:44:12,061 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:44:12,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:44:13,612 INFO L134 CoverageAnalysis]: Checked inductivity of 726 backedges. 430 proven. 41 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2019-09-07 13:44:13,613 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:44:13,613 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 13:44:13,622 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:44:13,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:44:13,983 INFO L256 TraceCheckSpWp]: Trace formula consists of 1792 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-07 13:44:13,995 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:44:16,242 INFO L134 CoverageAnalysis]: Checked inductivity of 726 backedges. 629 proven. 2 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2019-09-07 13:44:16,248 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 13:44:16,248 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2019-09-07 13:44:16,250 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-07 13:44:16,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-07 13:44:16,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-09-07 13:44:16,250 INFO L87 Difference]: Start difference. First operand 109276 states and 138375 transitions. Second operand 9 states. [2019-09-07 13:44:28,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:44:28,727 INFO L93 Difference]: Finished difference Result 254343 states and 326180 transitions. [2019-09-07 13:44:28,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-09-07 13:44:28,727 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1211 [2019-09-07 13:44:28,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:44:29,139 INFO L225 Difference]: With dead ends: 254343 [2019-09-07 13:44:29,140 INFO L226 Difference]: Without dead ends: 128934 [2019-09-07 13:44:29,381 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 1260 GetRequests, 1230 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=228, Invalid=764, Unknown=0, NotChecked=0, Total=992 [2019-09-07 13:44:29,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128934 states. [2019-09-07 13:44:31,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128934 to 126425. [2019-09-07 13:44:31,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126425 states. [2019-09-07 13:44:31,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126425 states to 126425 states and 137494 transitions. [2019-09-07 13:44:31,587 INFO L78 Accepts]: Start accepts. Automaton has 126425 states and 137494 transitions. Word has length 1211 [2019-09-07 13:44:31,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:44:31,588 INFO L475 AbstractCegarLoop]: Abstraction has 126425 states and 137494 transitions. [2019-09-07 13:44:31,588 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-07 13:44:31,588 INFO L276 IsEmpty]: Start isEmpty. Operand 126425 states and 137494 transitions. [2019-09-07 13:44:31,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1481 [2019-09-07 13:44:31,752 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:44:31,753 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:44:31,754 INFO L418 AbstractCegarLoop]: === Iteration 9 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:44:31,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:44:31,754 INFO L82 PathProgramCache]: Analyzing trace with hash -443983472, now seen corresponding path program 1 times [2019-09-07 13:44:31,755 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:44:31,755 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:44:31,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:44:31,756 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:44:31,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:44:32,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:44:35,885 INFO L134 CoverageAnalysis]: Checked inductivity of 1080 backedges. 683 proven. 0 refuted. 0 times theorem prover too weak. 397 trivial. 0 not checked. [2019-09-07 13:44:35,886 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 13:44:35,886 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-07 13:44:35,887 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-07 13:44:35,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-07 13:44:35,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-07 13:44:35,888 INFO L87 Difference]: Start difference. First operand 126425 states and 137494 transitions. Second operand 3 states. [2019-09-07 13:44:39,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:44:39,354 INFO L93 Difference]: Finished difference Result 244895 states and 265342 transitions. [2019-09-07 13:44:39,355 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-07 13:44:39,355 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1480 [2019-09-07 13:44:39,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:44:39,578 INFO L225 Difference]: With dead ends: 244895 [2019-09-07 13:44:39,579 INFO L226 Difference]: Without dead ends: 126418 [2019-09-07 13:44:39,698 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 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 13:44:39,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126418 states. [2019-09-07 13:44:41,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126418 to 126416. [2019-09-07 13:44:41,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126416 states. [2019-09-07 13:44:41,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126416 states to 126416 states and 134795 transitions. [2019-09-07 13:44:41,506 INFO L78 Accepts]: Start accepts. Automaton has 126416 states and 134795 transitions. Word has length 1480 [2019-09-07 13:44:41,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:44:41,508 INFO L475 AbstractCegarLoop]: Abstraction has 126416 states and 134795 transitions. [2019-09-07 13:44:41,508 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-07 13:44:41,508 INFO L276 IsEmpty]: Start isEmpty. Operand 126416 states and 134795 transitions. [2019-09-07 13:44:41,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4758 [2019-09-07 13:44:41,775 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:44:41,777 INFO L399 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2019-09-07 13:44:41,778 INFO L418 AbstractCegarLoop]: === Iteration 10 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:44:41,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:44:41,779 INFO L82 PathProgramCache]: Analyzing trace with hash 985842784, now seen corresponding path program 1 times [2019-09-07 13:44:41,779 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:44:41,779 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:44:41,780 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:44:41,780 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:44:41,780 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:44:42,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:44:54,122 INFO L134 CoverageAnalysis]: Checked inductivity of 17016 backedges. 4327 proven. 1395 refuted. 0 times theorem prover too weak. 11294 trivial. 0 not checked. [2019-09-07 13:44:54,122 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:44:54,123 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 13:44:54,133 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:44:55,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:44:55,412 INFO L256 TraceCheckSpWp]: Trace formula consists of 5994 conjuncts, 8 conjunts are in the unsatisfiable core [2019-09-07 13:44:55,456 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:45:03,432 INFO L134 CoverageAnalysis]: Checked inductivity of 17016 backedges. 10573 proven. 5 refuted. 0 times theorem prover too weak. 6438 trivial. 0 not checked. [2019-09-07 13:45:03,439 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 13:45:03,441 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2019-09-07 13:45:03,445 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-07 13:45:03,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-07 13:45:03,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-09-07 13:45:03,446 INFO L87 Difference]: Start difference. First operand 126416 states and 134795 transitions. Second operand 9 states. [2019-09-07 13:45:15,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:45:15,834 INFO L93 Difference]: Finished difference Result 287208 states and 313116 transitions. [2019-09-07 13:45:15,834 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-09-07 13:45:15,835 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 4757 [2019-09-07 13:45:15,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:45:16,170 INFO L225 Difference]: With dead ends: 287208 [2019-09-07 13:45:16,170 INFO L226 Difference]: Without dead ends: 161632 [2019-09-07 13:45:16,316 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 4795 GetRequests, 4770 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=158, Invalid=544, Unknown=0, NotChecked=0, Total=702 [2019-09-07 13:45:16,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161632 states. [2019-09-07 13:45:17,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161632 to 157603. [2019-09-07 13:45:17,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157603 states. [2019-09-07 13:45:21,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157603 states to 157603 states and 165271 transitions. [2019-09-07 13:45:21,640 INFO L78 Accepts]: Start accepts. Automaton has 157603 states and 165271 transitions. Word has length 4757 [2019-09-07 13:45:21,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:45:21,641 INFO L475 AbstractCegarLoop]: Abstraction has 157603 states and 165271 transitions. [2019-09-07 13:45:21,641 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-07 13:45:21,641 INFO L276 IsEmpty]: Start isEmpty. Operand 157603 states and 165271 transitions. [2019-09-07 13:45:21,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4809 [2019-09-07 13:45:21,929 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:45:21,932 INFO L399 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:45:21,932 INFO L418 AbstractCegarLoop]: === Iteration 11 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:45:21,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:45:21,934 INFO L82 PathProgramCache]: Analyzing trace with hash 1263222013, now seen corresponding path program 1 times [2019-09-07 13:45:21,934 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:45:21,934 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:45:21,935 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:45:21,935 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:45:21,935 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:45:22,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:45:39,835 INFO L134 CoverageAnalysis]: Checked inductivity of 18701 backedges. 4007 proven. 1630 refuted. 0 times theorem prover too weak. 13064 trivial. 0 not checked. [2019-09-07 13:45:39,836 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:45:39,836 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 13:45:39,846 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:45:41,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:45:41,163 INFO L256 TraceCheckSpWp]: Trace formula consists of 6202 conjuncts, 8 conjunts are in the unsatisfiable core [2019-09-07 13:45:41,199 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:45:49,374 INFO L134 CoverageAnalysis]: Checked inductivity of 18701 backedges. 9924 proven. 2 refuted. 0 times theorem prover too weak. 8775 trivial. 0 not checked. [2019-09-07 13:45:49,383 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 13:45:49,385 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5] total 13 [2019-09-07 13:45:49,391 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-09-07 13:45:49,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-09-07 13:45:49,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2019-09-07 13:45:49,392 INFO L87 Difference]: Start difference. First operand 157603 states and 165271 transitions. Second operand 13 states. [2019-09-07 13:45:49,540 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2019-09-07 13:45:51,375 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2019-09-07 13:45:52,177 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2019-09-07 13:45:52,726 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 69 [2019-09-07 13:45:52,913 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2019-09-07 13:45:53,888 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 69 [2019-09-07 13:45:54,324 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2019-09-07 13:45:55,697 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2019-09-07 13:45:56,619 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2019-09-07 13:45:56,998 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2019-09-07 13:45:57,331 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2019-09-07 13:45:57,484 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-09-07 13:45:58,041 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2019-09-07 13:45:59,436 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2019-09-07 13:46:00,501 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2019-09-07 13:46:01,380 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 44 [2019-09-07 13:46:04,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:46:04,123 INFO L93 Difference]: Finished difference Result 305803 states and 320633 transitions. [2019-09-07 13:46:04,123 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2019-09-07 13:46:04,124 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 4808 [2019-09-07 13:46:04,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:46:04,379 INFO L225 Difference]: With dead ends: 305803 [2019-09-07 13:46:04,379 INFO L226 Difference]: Without dead ends: 149040 [2019-09-07 13:46:04,522 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 4869 GetRequests, 4825 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 529 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=494, Invalid=1576, Unknown=0, NotChecked=0, Total=2070 [2019-09-07 13:46:04,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149040 states. [2019-09-07 13:46:09,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149040 to 148079. [2019-09-07 13:46:09,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148079 states. [2019-09-07 13:46:09,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148079 states to 148079 states and 153281 transitions. [2019-09-07 13:46:09,516 INFO L78 Accepts]: Start accepts. Automaton has 148079 states and 153281 transitions. Word has length 4808 [2019-09-07 13:46:09,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:46:09,517 INFO L475 AbstractCegarLoop]: Abstraction has 148079 states and 153281 transitions. [2019-09-07 13:46:09,517 INFO L476 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-09-07 13:46:09,517 INFO L276 IsEmpty]: Start isEmpty. Operand 148079 states and 153281 transitions. [2019-09-07 13:46:09,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4832 [2019-09-07 13:46:09,779 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:46:09,781 INFO L399 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:46:09,781 INFO L418 AbstractCegarLoop]: === Iteration 12 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:46:09,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:46:09,783 INFO L82 PathProgramCache]: Analyzing trace with hash -1745278279, now seen corresponding path program 1 times [2019-09-07 13:46:09,783 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:46:09,783 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:46:09,784 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:46:09,784 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:46:09,784 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:46:09,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:46:19,612 INFO L134 CoverageAnalysis]: Checked inductivity of 19551 backedges. 4108 proven. 817 refuted. 0 times theorem prover too weak. 14626 trivial. 0 not checked. [2019-09-07 13:46:19,613 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:46:19,613 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-07 13:46:19,627 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 13:46:20,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:46:20,959 INFO L256 TraceCheckSpWp]: Trace formula consists of 6234 conjuncts, 10 conjunts are in the unsatisfiable core [2019-09-07 13:46:20,987 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:46:29,094 INFO L134 CoverageAnalysis]: Checked inductivity of 19551 backedges. 4031 proven. 0 refuted. 0 times theorem prover too weak. 15520 trivial. 0 not checked. [2019-09-07 13:46:29,102 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-07 13:46:29,103 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2019-09-07 13:46:29,107 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-09-07 13:46:29,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-09-07 13:46:29,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2019-09-07 13:46:29,108 INFO L87 Difference]: Start difference. First operand 148079 states and 153281 transitions. Second operand 13 states. [2019-09-07 13:46:47,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:46:47,573 INFO L93 Difference]: Finished difference Result 296266 states and 306623 transitions. [2019-09-07 13:46:47,573 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-09-07 13:46:47,573 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 4831 [2019-09-07 13:46:47,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:46:47,855 INFO L225 Difference]: With dead ends: 296266 [2019-09-07 13:46:47,855 INFO L226 Difference]: Without dead ends: 149874 [2019-09-07 13:46:47,942 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 4915 GetRequests, 4867 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 658 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=439, Invalid=1913, Unknown=0, NotChecked=0, Total=2352 [2019-09-07 13:46:48,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149874 states. [2019-09-07 13:46:49,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149874 to 149019. [2019-09-07 13:46:49,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149019 states. [2019-09-07 13:46:49,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149019 states to 149019 states and 153200 transitions. [2019-09-07 13:46:49,414 INFO L78 Accepts]: Start accepts. Automaton has 149019 states and 153200 transitions. Word has length 4831 [2019-09-07 13:46:49,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:46:49,415 INFO L475 AbstractCegarLoop]: Abstraction has 149019 states and 153200 transitions. [2019-09-07 13:46:49,415 INFO L476 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-09-07 13:46:49,415 INFO L276 IsEmpty]: Start isEmpty. Operand 149019 states and 153200 transitions. [2019-09-07 13:46:49,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5226 [2019-09-07 13:46:49,705 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:46:49,707 INFO L399 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:46:49,707 INFO L418 AbstractCegarLoop]: === Iteration 13 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:46:49,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:46:49,708 INFO L82 PathProgramCache]: Analyzing trace with hash 1259640632, now seen corresponding path program 1 times [2019-09-07 13:46:49,708 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:46:49,708 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:46:49,709 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:46:49,710 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:46:49,710 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:46:50,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:46:55,217 WARN L188 SmtUtils]: Spent 3.05 s on a formula simplification that was a NOOP. DAG size: 20 [2019-09-07 13:46:55,640 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 53 [2019-09-07 13:46:55,795 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2019-09-07 13:47:38,523 INFO L134 CoverageAnalysis]: Checked inductivity of 22376 backedges. 6424 proven. 9034 refuted. 0 times theorem prover too weak. 6918 trivial. 0 not checked. [2019-09-07 13:47:38,523 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:47:38,523 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-07 13:47:38,537 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 13:47:39,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:47:39,965 INFO L256 TraceCheckSpWp]: Trace formula consists of 6717 conjuncts, 54 conjunts are in the unsatisfiable core [2019-09-07 13:47:40,025 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:47:40,390 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-09-07 13:48:11,203 INFO L134 CoverageAnalysis]: Checked inductivity of 22376 backedges. 10533 proven. 5 refuted. 0 times theorem prover too weak. 11838 trivial. 0 not checked. [2019-09-07 13:48:11,212 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 13:48:11,213 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 7] total 43 [2019-09-07 13:48:11,219 INFO L454 AbstractCegarLoop]: Interpolant automaton has 43 states [2019-09-07 13:48:11,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2019-09-07 13:48:11,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=197, Invalid=1609, Unknown=0, NotChecked=0, Total=1806 [2019-09-07 13:48:11,220 INFO L87 Difference]: Start difference. First operand 149019 states and 153200 transitions. Second operand 43 states. [2019-09-07 13:48:11,456 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2019-09-07 13:48:11,935 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 63 [2019-09-07 13:48:12,122 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 48 [2019-09-07 13:48:12,468 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 48 [2019-09-07 13:48:16,383 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 65 [2019-09-07 13:48:17,992 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 25 [2019-09-07 13:48:21,818 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 47 [2019-09-07 13:48:22,186 WARN L188 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 82 [2019-09-07 13:48:22,690 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 44 [2019-09-07 13:48:23,656 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 45 [2019-09-07 13:48:25,861 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 59 [2019-09-07 13:48:26,262 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 54 [2019-09-07 13:48:26,555 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 48 [2019-09-07 13:48:26,896 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 45 [2019-09-07 13:48:28,085 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 39 [2019-09-07 13:48:28,398 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 77 [2019-09-07 13:48:29,640 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 48 [2019-09-07 13:48:29,950 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 51 [2019-09-07 13:48:30,693 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 28 [2019-09-07 13:48:32,787 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 43 [2019-09-07 13:48:36,825 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 58 [2019-09-07 13:48:37,793 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 42 [2019-09-07 13:48:38,697 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 42 [2019-09-07 13:48:40,896 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 26 [2019-09-07 13:48:41,298 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 51 [2019-09-07 13:48:44,700 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 39 [2019-09-07 13:48:45,412 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 63 [2019-09-07 13:48:46,342 WARN L188 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 79 [2019-09-07 13:48:46,678 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 60 [2019-09-07 13:48:47,078 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 50 [2019-09-07 13:48:48,154 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 77 [2019-09-07 13:48:48,463 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2019-09-07 13:48:49,884 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 41 [2019-09-07 13:48:51,200 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 47 [2019-09-07 13:48:52,859 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 83 [2019-09-07 13:48:54,530 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 79 [2019-09-07 13:48:57,376 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 34 [2019-09-07 13:48:57,917 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 45 [2019-09-07 13:48:58,204 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2019-09-07 13:49:00,630 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2019-09-07 13:49:03,505 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 48 [2019-09-07 13:49:04,073 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 48 [2019-09-07 13:49:04,711 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 58 [2019-09-07 13:49:05,403 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2019-09-07 13:49:06,263 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 43 [2019-09-07 13:49:07,152 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 84 [2019-09-07 13:49:07,859 WARN L188 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 83 [2019-09-07 13:49:09,219 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 32 [2019-09-07 13:49:09,510 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2019-09-07 13:49:10,111 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 55 [2019-09-07 13:49:10,900 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 51 [2019-09-07 13:49:11,399 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 36 [2019-09-07 13:49:12,413 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2019-09-07 13:49:14,428 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2019-09-07 13:49:15,094 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 51 [2019-09-07 13:49:15,534 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 48 [2019-09-07 13:49:16,263 WARN L188 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 82 [2019-09-07 13:49:16,467 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 31 [2019-09-07 13:49:17,492 WARN L188 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 91 [2019-09-07 13:49:17,882 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 58 [2019-09-07 13:49:18,498 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 50 [2019-09-07 13:49:18,776 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 50 [2019-09-07 13:49:19,262 WARN L188 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2019-09-07 13:49:20,137 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 46 [2019-09-07 13:49:20,786 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 63 [2019-09-07 13:49:21,236 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 57 [2019-09-07 13:49:21,511 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 70 [2019-09-07 13:49:21,854 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 56 [2019-09-07 13:49:22,058 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 46 [2019-09-07 13:49:22,256 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 51 [2019-09-07 13:49:23,130 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 52 [2019-09-07 13:49:23,464 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 50 [2019-09-07 13:49:23,870 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 61 [2019-09-07 13:49:24,514 WARN L188 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 76 [2019-09-07 13:49:24,956 WARN L188 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 62 [2019-09-07 13:49:25,343 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 54 [2019-09-07 13:49:26,423 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 59 [2019-09-07 13:49:27,307 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 69 [2019-09-07 13:49:28,120 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2019-09-07 13:49:28,563 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 65 [2019-09-07 13:49:29,073 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 63 [2019-09-07 13:49:29,418 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 25 [2019-09-07 13:49:29,852 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 55 [2019-09-07 13:49:30,053 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 45 [2019-09-07 13:49:30,796 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2019-09-07 13:49:31,448 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 31 [2019-09-07 13:49:31,842 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 44 [2019-09-07 13:49:32,114 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2019-09-07 13:49:32,445 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 68 [2019-09-07 13:49:33,158 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 47 [2019-09-07 13:49:33,947 WARN L188 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 65 [2019-09-07 13:49:34,356 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 56 [2019-09-07 13:49:35,128 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 64 [2019-09-07 13:49:35,492 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2019-09-07 13:49:35,759 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 53 [2019-09-07 13:49:36,059 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 74 [2019-09-07 13:49:36,449 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 46 [2019-09-07 13:49:36,851 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 66 [2019-09-07 13:49:37,137 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 33 [2019-09-07 13:49:37,765 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2019-09-07 13:49:37,944 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2019-09-07 13:49:38,355 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 51 [2019-09-07 13:49:38,662 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 57 [2019-09-07 13:49:38,923 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 51 [2019-09-07 13:49:39,098 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 47 [2019-09-07 13:49:39,295 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 46 [2019-09-07 13:49:39,493 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 45 [2019-09-07 13:49:40,379 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 44 [2019-09-07 13:49:40,777 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 32 [2019-09-07 13:49:41,489 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 24 [2019-09-07 13:49:41,851 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 45 [2019-09-07 13:49:42,104 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 52 [2019-09-07 13:49:42,914 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 60 [2019-09-07 13:49:43,161 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 47 [2019-09-07 13:49:44,087 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 84 [2019-09-07 13:49:44,331 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 62 [2019-09-07 13:49:44,812 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 40 [2019-09-07 13:49:46,094 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 35 [2019-09-07 13:49:47,839 WARN L188 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 89 [2019-09-07 13:49:48,099 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 63 [2019-09-07 13:49:48,967 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 44 [2019-09-07 13:49:49,314 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 34 [2019-09-07 13:49:50,539 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 49 [2019-09-07 13:49:51,378 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 74 [2019-09-07 13:49:52,591 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 61 [2019-09-07 13:49:53,132 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 33 [2019-09-07 13:49:54,276 WARN L188 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 75 [2019-09-07 13:49:54,554 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 27 [2019-09-07 13:49:54,791 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 61 [2019-09-07 13:49:55,415 WARN L188 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 65 [2019-09-07 13:49:55,653 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 55 [2019-09-07 13:49:56,193 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 38 [2019-09-07 13:49:56,682 WARN L188 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2019-09-07 13:49:56,939 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2019-09-07 13:49:57,252 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 58 [2019-09-07 13:49:57,469 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 49 [2019-09-07 13:49:57,773 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2019-09-07 13:49:58,199 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 47 [2019-09-07 13:49:58,581 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2019-09-07 13:49:58,829 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 52 [2019-09-07 13:49:59,324 WARN L188 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 98 [2019-09-07 13:49:59,517 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2019-09-07 13:49:59,714 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 37 [2019-09-07 13:50:00,137 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2019-09-07 13:50:00,555 WARN L188 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 82 [2019-09-07 13:50:00,841 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 52 [2019-09-07 13:50:01,070 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 63 [2019-09-07 13:50:01,355 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2019-09-07 13:50:01,682 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 82 [2019-09-07 13:50:02,082 WARN L188 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 86 [2019-09-07 13:50:02,295 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2019-09-07 13:50:02,612 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 80 [2019-09-07 13:50:02,912 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2019-09-07 13:50:03,146 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 44 [2019-09-07 13:50:03,340 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 36 [2019-09-07 13:50:03,972 WARN L188 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 92 [2019-09-07 13:50:04,258 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 72 [2019-09-07 13:50:04,693 WARN L188 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 101 [2019-09-07 13:50:05,028 WARN L188 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 83 [2019-09-07 13:50:05,481 WARN L188 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 93 [2019-09-07 13:50:05,837 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 82 [2019-09-07 13:50:06,107 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 73 [2019-09-07 13:50:06,635 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 58 [2019-09-07 13:50:06,986 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 46 [2019-09-07 13:50:07,192 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 37 [2019-09-07 13:50:07,689 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 69 [2019-09-07 13:50:07,898 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 23 [2019-09-07 13:50:08,559 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 44 [2019-09-07 13:50:09,159 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 55 [2019-09-07 13:50:09,336 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 45 [2019-09-07 13:50:09,834 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 47 [2019-09-07 13:50:10,138 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 62 [2019-09-07 13:50:10,593 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2019-09-07 13:50:11,190 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 52 [2019-09-07 13:50:11,410 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 69 [2019-09-07 13:50:11,922 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 59 [2019-09-07 13:50:12,165 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 52 [2019-09-07 13:50:13,773 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 50 [2019-09-07 13:50:14,774 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2019-09-07 13:50:14,972 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2019-09-07 13:50:15,294 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 66 [2019-09-07 13:50:15,827 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 68 [2019-09-07 13:50:16,086 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 48 [2019-09-07 13:50:16,549 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 37 [2019-09-07 13:50:17,148 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 34 [2019-09-07 13:50:28,989 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2019-09-07 13:50:29,227 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 25 [2019-09-07 13:50:34,634 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 50 [2019-09-07 13:50:35,052 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 66 [2019-09-07 13:50:36,736 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 59 [2019-09-07 13:50:39,012 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 41 [2019-09-07 13:50:44,604 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2019-09-07 13:50:44,928 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2019-09-07 13:50:45,250 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 38 [2019-09-07 13:50:45,873 WARN L188 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 85 [2019-09-07 13:50:46,399 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 81 [2019-09-07 13:50:47,632 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 36 [2019-09-07 13:50:49,120 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 48 [2019-09-07 13:50:51,719 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 37 [2019-09-07 13:50:52,370 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 39 [2019-09-07 13:50:58,567 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 57 [2019-09-07 13:51:00,478 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 38 [2019-09-07 13:51:01,272 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2019-09-07 13:51:02,002 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2019-09-07 13:51:02,316 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 27 [2019-09-07 13:51:04,021 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 27 [2019-09-07 13:51:06,980 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 51 [2019-09-07 13:51:07,694 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2019-09-07 13:51:08,981 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2019-09-07 13:51:09,580 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2019-09-07 13:51:09,861 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2019-09-07 13:51:10,698 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 63 [2019-09-07 13:51:11,104 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 59 [2019-09-07 13:51:11,573 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 20 [2019-09-07 13:51:11,813 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 22 [2019-09-07 13:51:17,675 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2019-09-07 13:51:19,448 WARN L188 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 84 [2019-09-07 13:51:19,807 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-07 13:51:20,556 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 72 [2019-09-07 13:51:21,435 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 35 [2019-09-07 13:51:22,993 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 69 [2019-09-07 13:51:23,369 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2019-09-07 13:51:25,474 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 64 [2019-09-07 13:51:26,706 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 57 [2019-09-07 13:51:29,517 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 68 [2019-09-07 13:51:31,296 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 75 [2019-09-07 13:51:33,713 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 36 [2019-09-07 13:51:33,923 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 48 [2019-09-07 13:51:34,587 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 29 [2019-09-07 13:51:34,866 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 39 [2019-09-07 13:51:35,492 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 36 [2019-09-07 13:51:39,326 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 61 [2019-09-07 13:51:41,520 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 71 [2019-09-07 13:51:44,560 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 24 [2019-09-07 13:51:46,882 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 48 [2019-09-07 13:51:47,624 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 49 [2019-09-07 13:51:50,071 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 84 [2019-09-07 13:51:54,599 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2019-09-07 13:51:55,401 WARN L188 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 88 [2019-09-07 13:52:00,659 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 53 [2019-09-07 13:52:03,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:52:03,337 INFO L93 Difference]: Finished difference Result 369283 states and 389275 transitions. [2019-09-07 13:52:03,337 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 404 states. [2019-09-07 13:52:03,337 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 5225 [2019-09-07 13:52:03,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:52:03,812 INFO L225 Difference]: With dead ends: 369283 [2019-09-07 13:52:03,812 INFO L226 Difference]: Without dead ends: 237996 [2019-09-07 13:52:03,932 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5850 GetRequests, 5405 SyntacticMatches, 5 SemanticMatches, 440 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85960 ImplicationChecksByTransitivity, 72.9s TimeCoverageRelationStatistics Valid=18753, Invalid=176169, Unknown=0, NotChecked=0, Total=194922 [2019-09-07 13:52:04,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237996 states. [2019-09-07 13:52:06,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237996 to 232393. [2019-09-07 13:52:06,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232393 states. [2019-09-07 13:52:06,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232393 states to 232393 states and 241975 transitions. [2019-09-07 13:52:06,934 INFO L78 Accepts]: Start accepts. Automaton has 232393 states and 241975 transitions. Word has length 5225 [2019-09-07 13:52:06,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:52:06,935 INFO L475 AbstractCegarLoop]: Abstraction has 232393 states and 241975 transitions. [2019-09-07 13:52:06,935 INFO L476 AbstractCegarLoop]: Interpolant automaton has 43 states. [2019-09-07 13:52:06,935 INFO L276 IsEmpty]: Start isEmpty. Operand 232393 states and 241975 transitions. [2019-09-07 13:52:12,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5557 [2019-09-07 13:52:12,098 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:52:12,100 INFO L399 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:52:12,101 INFO L418 AbstractCegarLoop]: === Iteration 14 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:52:12,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:52:12,112 INFO L82 PathProgramCache]: Analyzing trace with hash 644236479, now seen corresponding path program 1 times [2019-09-07 13:52:12,112 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:52:12,112 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:52:12,114 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:52:12,114 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:52:12,114 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:52:12,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:52:23,594 INFO L134 CoverageAnalysis]: Checked inductivity of 25520 backedges. 5075 proven. 2320 refuted. 0 times theorem prover too weak. 18125 trivial. 0 not checked. [2019-09-07 13:52:23,595 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:52:23,595 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 13:52:23,605 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:52:25,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:52:25,053 INFO L256 TraceCheckSpWp]: Trace formula consists of 7106 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-07 13:52:25,096 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:52:34,535 INFO L134 CoverageAnalysis]: Checked inductivity of 25520 backedges. 5883 proven. 2 refuted. 0 times theorem prover too weak. 19635 trivial. 0 not checked. [2019-09-07 13:52:34,544 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 13:52:34,545 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5] total 13 [2019-09-07 13:52:34,550 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-09-07 13:52:34,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-09-07 13:52:34,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2019-09-07 13:52:34,551 INFO L87 Difference]: Start difference. First operand 232393 states and 241975 transitions. Second operand 13 states. [2019-09-07 13:52:53,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:52:53,997 INFO L93 Difference]: Finished difference Result 508428 states and 528935 transitions. [2019-09-07 13:52:53,997 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-09-07 13:52:53,997 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 5556 [2019-09-07 13:52:53,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:52:54,589 INFO L225 Difference]: With dead ends: 508428 [2019-09-07 13:52:54,589 INFO L226 Difference]: Without dead ends: 279384 [2019-09-07 13:52:54,766 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5617 GetRequests, 5579 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 350 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=349, Invalid=1211, Unknown=0, NotChecked=0, Total=1560 [2019-09-07 13:52:54,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279384 states. [2019-09-07 13:53:02,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279384 to 273453. [2019-09-07 13:53:02,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 273453 states. [2019-09-07 13:53:03,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273453 states to 273453 states and 283467 transitions. [2019-09-07 13:53:03,380 INFO L78 Accepts]: Start accepts. Automaton has 273453 states and 283467 transitions. Word has length 5556 [2019-09-07 13:53:03,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:53:03,381 INFO L475 AbstractCegarLoop]: Abstraction has 273453 states and 283467 transitions. [2019-09-07 13:53:03,381 INFO L476 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-09-07 13:53:03,381 INFO L276 IsEmpty]: Start isEmpty. Operand 273453 states and 283467 transitions. [2019-09-07 13:53:04,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6096 [2019-09-07 13:53:04,066 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:53:04,068 INFO L399 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:53:04,068 INFO L418 AbstractCegarLoop]: === Iteration 15 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:53:04,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:53:04,070 INFO L82 PathProgramCache]: Analyzing trace with hash -1766816505, now seen corresponding path program 1 times [2019-09-07 13:53:04,070 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:53:04,070 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:53:04,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:53:04,071 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:53:04,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:53:04,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:53:11,895 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2019-09-07 13:53:12,073 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2019-09-07 13:53:12,247 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 63