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_label11.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-07 13:41:22,926 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-07 13:41:22,928 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-07 13:41:22,939 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-07 13:41:22,940 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-07 13:41:22,941 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-07 13:41:22,942 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-07 13:41:22,944 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-07 13:41:22,946 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-07 13:41:22,946 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-07 13:41:22,947 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-07 13:41:22,948 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-07 13:41:22,949 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-07 13:41:22,950 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-07 13:41:22,951 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-07 13:41:22,952 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-07 13:41:22,952 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-07 13:41:22,953 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-07 13:41:22,955 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-07 13:41:22,957 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-07 13:41:22,958 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-07 13:41:22,959 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-07 13:41:22,960 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-07 13:41:22,961 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-07 13:41:22,963 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-07 13:41:22,963 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-07 13:41:22,963 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-07 13:41:22,964 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-07 13:41:22,964 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-07 13:41:22,965 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-07 13:41:22,965 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-07 13:41:22,966 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-07 13:41:22,967 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-07 13:41:22,968 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-07 13:41:22,968 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-07 13:41:22,969 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-07 13:41:22,969 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-07 13:41:22,969 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-07 13:41:22,970 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-07 13:41:22,970 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-07 13:41:22,971 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-07 13:41:22,972 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 13:41:22,985 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-07 13:41:22,986 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-07 13:41:22,987 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-07 13:41:22,987 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-07 13:41:22,987 INFO L138 SettingsManager]: * Use SBE=true [2019-09-07 13:41:22,988 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-07 13:41:22,988 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-07 13:41:22,988 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-07 13:41:22,988 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-07 13:41:22,989 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-07 13:41:22,989 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-07 13:41:22,989 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-07 13:41:22,989 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-07 13:41:22,989 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-07 13:41:22,990 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-07 13:41:22,990 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-07 13:41:22,990 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-07 13:41:22,990 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-07 13:41:22,991 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-07 13:41:22,991 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-07 13:41:22,991 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-07 13:41:22,991 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-07 13:41:22,991 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-07 13:41:22,992 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-07 13:41:22,992 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-07 13:41:22,992 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-07 13:41:22,992 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-07 13:41:22,992 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-07 13:41:22,993 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-07 13:41:23,020 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-07 13:41:23,036 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-07 13:41:23,039 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-07 13:41:23,040 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-07 13:41:23,040 INFO L275 PluginConnector]: CDTParser initialized [2019-09-07 13:41:23,041 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem04_label11.c [2019-09-07 13:41:23,095 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a5a7a4cc/53a368562072465c9bff9025fe8f0cd6/FLAG17e290a43 [2019-09-07 13:41:23,783 INFO L306 CDTParser]: Found 1 translation units. [2019-09-07 13:41:23,784 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem04_label11.c [2019-09-07 13:41:23,820 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a5a7a4cc/53a368562072465c9bff9025fe8f0cd6/FLAG17e290a43 [2019-09-07 13:41:23,870 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a5a7a4cc/53a368562072465c9bff9025fe8f0cd6 [2019-09-07 13:41:23,883 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-07 13:41:23,885 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-07 13:41:23,889 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-07 13:41:23,889 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-07 13:41:23,893 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-07 13:41:23,894 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 01:41:23" (1/1) ... [2019-09-07 13:41:23,897 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@692b7d78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:41:23, skipping insertion in model container [2019-09-07 13:41:23,897 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 01:41:23" (1/1) ... [2019-09-07 13:41:23,905 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-07 13:41:24,078 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-07 13:41:25,385 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-07 13:41:25,397 INFO L188 MainTranslator]: Completed pre-run [2019-09-07 13:41:26,275 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-07 13:41:26,307 INFO L192 MainTranslator]: Completed translation [2019-09-07 13:41:26,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:41:26 WrapperNode [2019-09-07 13:41:26,308 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-07 13:41:26,309 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-07 13:41:26,309 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-07 13:41:26,309 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-07 13:41:26,323 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:41:26" (1/1) ... [2019-09-07 13:41:26,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:41:26" (1/1) ... [2019-09-07 13:41:26,406 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:41:26" (1/1) ... [2019-09-07 13:41:26,407 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:41:26" (1/1) ... [2019-09-07 13:41:26,524 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:41:26" (1/1) ... [2019-09-07 13:41:26,567 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:41:26" (1/1) ... [2019-09-07 13:41:26,596 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:41:26" (1/1) ... [2019-09-07 13:41:26,622 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-07 13:41:26,623 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-07 13:41:26,623 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-07 13:41:26,623 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-07 13:41:26,625 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:41:26" (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 13:41:26,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-07 13:41:26,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-07 13:41:26,694 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-09-07 13:41:26,695 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2019-09-07 13:41:26,695 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2019-09-07 13:41:26,695 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2019-09-07 13:41:26,695 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-07 13:41:26,695 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-09-07 13:41:26,696 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2019-09-07 13:41:26,696 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2019-09-07 13:41:26,696 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2019-09-07 13:41:26,696 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-07 13:41:26,697 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-07 13:41:26,697 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-07 13:41:26,697 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-07 13:41:26,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-07 13:41:26,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-07 13:41:31,064 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-07 13:41:31,065 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-07 13:41:31,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 01:41:31 BoogieIcfgContainer [2019-09-07 13:41:31,070 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-07 13:41:31,072 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-07 13:41:31,072 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-07 13:41:31,076 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-07 13:41:31,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.09 01:41:23" (1/3) ... [2019-09-07 13:41:31,077 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2289fe6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 01:41:31, skipping insertion in model container [2019-09-07 13:41:31,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:41:26" (2/3) ... [2019-09-07 13:41:31,077 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2289fe6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 01:41:31, skipping insertion in model container [2019-09-07 13:41:31,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 01:41:31" (3/3) ... [2019-09-07 13:41:31,080 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem04_label11.c [2019-09-07 13:41:31,090 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-07 13:41:31,102 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-07 13:41:31,123 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-07 13:41:31,173 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-07 13:41:31,174 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-07 13:41:31,174 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-07 13:41:31,174 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-07 13:41:31,174 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-07 13:41:31,175 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-07 13:41:31,175 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-07 13:41:31,175 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-07 13:41:31,175 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-07 13:41:31,221 INFO L276 IsEmpty]: Start isEmpty. Operand 906 states. [2019-09-07 13:41:31,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 780 [2019-09-07 13:41:31,276 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:41:31,278 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] [2019-09-07 13:41:31,281 INFO L418 AbstractCegarLoop]: === Iteration 1 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:41:31,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:41:31,288 INFO L82 PathProgramCache]: Analyzing trace with hash 1929230314, now seen corresponding path program 1 times [2019-09-07 13:41:31,290 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:41:31,291 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:41:31,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:41:31,345 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:41:31,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:41:31,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:41:33,295 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 13:41:33,298 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 13:41:33,298 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-07 13:41:33,306 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-07 13:41:33,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-07 13:41:33,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-07 13:41:33,323 INFO L87 Difference]: Start difference. First operand 906 states. Second operand 3 states. [2019-09-07 13:41:39,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:41:39,021 INFO L93 Difference]: Finished difference Result 2644 states and 5099 transitions. [2019-09-07 13:41:39,021 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-07 13:41:39,023 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 779 [2019-09-07 13:41:39,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:41:39,072 INFO L225 Difference]: With dead ends: 2644 [2019-09-07 13:41:39,072 INFO L226 Difference]: Without dead ends: 1676 [2019-09-07 13:41:39,084 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 13:41:39,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1676 states. [2019-09-07 13:41:39,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1676 to 1676. [2019-09-07 13:41:39,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1676 states. [2019-09-07 13:41:39,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1676 states to 1676 states and 3004 transitions. [2019-09-07 13:41:39,302 INFO L78 Accepts]: Start accepts. Automaton has 1676 states and 3004 transitions. Word has length 779 [2019-09-07 13:41:39,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:41:39,307 INFO L475 AbstractCegarLoop]: Abstraction has 1676 states and 3004 transitions. [2019-09-07 13:41:39,307 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-07 13:41:39,308 INFO L276 IsEmpty]: Start isEmpty. Operand 1676 states and 3004 transitions. [2019-09-07 13:41:39,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 799 [2019-09-07 13:41:39,346 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:41:39,347 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] [2019-09-07 13:41:39,348 INFO L418 AbstractCegarLoop]: === Iteration 2 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:41:39,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:41:39,350 INFO L82 PathProgramCache]: Analyzing trace with hash 626326329, now seen corresponding path program 1 times [2019-09-07 13:41:39,350 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:41:39,350 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:41:39,352 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:41:39,353 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:41:39,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:41:39,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:41:40,782 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 13:41:40,782 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:41:40,782 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 13:41:40,801 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:41:41,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:41:41,098 INFO L256 TraceCheckSpWp]: Trace formula consists of 1122 conjuncts, 10 conjunts are in the unsatisfiable core [2019-09-07 13:41:41,146 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:41:42,011 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 13:41:42,017 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-07 13:41:42,017 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2019-09-07 13:41:42,021 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-07 13:41:42,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-07 13:41:42,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-09-07 13:41:42,022 INFO L87 Difference]: Start difference. First operand 1676 states and 3004 transitions. Second operand 5 states. [2019-09-07 13:41:46,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:41:46,986 INFO L93 Difference]: Finished difference Result 5066 states and 9147 transitions. [2019-09-07 13:41:46,986 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-07 13:41:46,986 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 798 [2019-09-07 13:41:46,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:41:47,014 INFO L225 Difference]: With dead ends: 5066 [2019-09-07 13:41:47,014 INFO L226 Difference]: Without dead ends: 3396 [2019-09-07 13:41:47,020 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 810 GetRequests, 799 SyntacticMatches, 7 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-09-07 13:41:47,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3396 states. [2019-09-07 13:41:47,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3396 to 3366. [2019-09-07 13:41:47,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3366 states. [2019-09-07 13:41:47,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3366 states to 3366 states and 5756 transitions. [2019-09-07 13:41:47,146 INFO L78 Accepts]: Start accepts. Automaton has 3366 states and 5756 transitions. Word has length 798 [2019-09-07 13:41:47,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:41:47,149 INFO L475 AbstractCegarLoop]: Abstraction has 3366 states and 5756 transitions. [2019-09-07 13:41:47,150 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-07 13:41:47,150 INFO L276 IsEmpty]: Start isEmpty. Operand 3366 states and 5756 transitions. [2019-09-07 13:41:47,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 801 [2019-09-07 13:41:47,182 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:41:47,184 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-07 13:41:47,184 INFO L418 AbstractCegarLoop]: === Iteration 3 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:41:47,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:41:47,185 INFO L82 PathProgramCache]: Analyzing trace with hash 1199082109, now seen corresponding path program 1 times [2019-09-07 13:41:47,185 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:41:47,185 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:41:47,187 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:41:47,187 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:41:47,187 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:41:47,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:41:47,881 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 13:41:47,882 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 13:41:47,883 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-07 13:41:47,888 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-07 13:41:47,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-07 13:41:47,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2019-09-07 13:41:47,889 INFO L87 Difference]: Start difference. First operand 3366 states and 5756 transitions. Second operand 7 states. [2019-09-07 13:41:55,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:41:55,132 INFO L93 Difference]: Finished difference Result 8608 states and 14844 transitions. [2019-09-07 13:41:55,133 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-07 13:41:55,133 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 800 [2019-09-07 13:41:55,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:41:55,166 INFO L225 Difference]: With dead ends: 8608 [2019-09-07 13:41:55,166 INFO L226 Difference]: Without dead ends: 5248 [2019-09-07 13:41:55,176 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2019-09-07 13:41:55,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5248 states. [2019-09-07 13:41:55,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5248 to 5137. [2019-09-07 13:41:55,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5137 states. [2019-09-07 13:41:55,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5137 states to 5137 states and 8401 transitions. [2019-09-07 13:41:55,330 INFO L78 Accepts]: Start accepts. Automaton has 5137 states and 8401 transitions. Word has length 800 [2019-09-07 13:41:55,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:41:55,331 INFO L475 AbstractCegarLoop]: Abstraction has 5137 states and 8401 transitions. [2019-09-07 13:41:55,331 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-07 13:41:55,331 INFO L276 IsEmpty]: Start isEmpty. Operand 5137 states and 8401 transitions. [2019-09-07 13:41:55,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 816 [2019-09-07 13:41:55,352 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:41:55,353 INFO L399 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:41:55,353 INFO L418 AbstractCegarLoop]: === Iteration 4 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:41:55,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:41:55,354 INFO L82 PathProgramCache]: Analyzing trace with hash 1190976948, now seen corresponding path program 1 times [2019-09-07 13:41:55,354 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:41:55,354 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:41:55,355 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:41:55,356 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:41:55,356 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:41:55,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:41:56,250 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 36 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 13:41:56,251 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:41:56,251 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-07 13:41:56,283 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 13:41:56,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:41:56,537 INFO L256 TraceCheckSpWp]: Trace formula consists of 1192 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-07 13:41:56,565 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:41:57,145 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 36 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (3)] Exception during sending of exit command (exit): Broken pipe [2019-09-07 13:41:57,159 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 13:41:57,159 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2019-09-07 13:41:57,161 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-07 13:41:57,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-07 13:41:57,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-09-07 13:41:57,164 INFO L87 Difference]: Start difference. First operand 5137 states and 8401 transitions. Second operand 9 states. [2019-09-07 13:42:09,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:42:09,224 INFO L93 Difference]: Finished difference Result 25972 states and 44975 transitions. [2019-09-07 13:42:09,224 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-09-07 13:42:09,224 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 815 [2019-09-07 13:42:09,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:42:09,324 INFO L225 Difference]: With dead ends: 25972 [2019-09-07 13:42:09,324 INFO L226 Difference]: Without dead ends: 20841 [2019-09-07 13:42:09,344 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 853 GetRequests, 822 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=235, Invalid=821, Unknown=0, NotChecked=0, Total=1056 [2019-09-07 13:42:09,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20841 states. [2019-09-07 13:42:09,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20841 to 19835. [2019-09-07 13:42:09,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19835 states. [2019-09-07 13:42:09,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19835 states to 19835 states and 27744 transitions. [2019-09-07 13:42:09,946 INFO L78 Accepts]: Start accepts. Automaton has 19835 states and 27744 transitions. Word has length 815 [2019-09-07 13:42:09,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:42:09,948 INFO L475 AbstractCegarLoop]: Abstraction has 19835 states and 27744 transitions. [2019-09-07 13:42:09,948 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-07 13:42:09,948 INFO L276 IsEmpty]: Start isEmpty. Operand 19835 states and 27744 transitions. [2019-09-07 13:42:10,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 920 [2019-09-07 13:42:10,023 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:42:10,024 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, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:42:10,024 INFO L418 AbstractCegarLoop]: === Iteration 5 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:42:10,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:42:10,025 INFO L82 PathProgramCache]: Analyzing trace with hash 1646717573, now seen corresponding path program 1 times [2019-09-07 13:42:10,025 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:42:10,027 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:42:10,028 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:42:10,029 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:42:10,029 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:42:10,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:42:11,132 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 131 proven. 70 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-09-07 13:42:11,133 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:42:11,133 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 13:42:11,152 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:42:11,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:42:11,433 INFO L256 TraceCheckSpWp]: Trace formula consists of 1355 conjuncts, 6 conjunts are in the unsatisfiable core [2019-09-07 13:42:11,462 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:42:12,081 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2019-09-07 13:42:12,086 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-07 13:42:12,086 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2019-09-07 13:42:12,088 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-07 13:42:12,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-07 13:42:12,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2019-09-07 13:42:12,089 INFO L87 Difference]: Start difference. First operand 19835 states and 27744 transitions. Second operand 9 states. [2019-09-07 13:42:18,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:42:18,931 INFO L93 Difference]: Finished difference Result 52665 states and 76957 transitions. [2019-09-07 13:42:18,932 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-07 13:42:18,932 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 919 [2019-09-07 13:42:18,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:42:19,091 INFO L225 Difference]: With dead ends: 52665 [2019-09-07 13:42:19,091 INFO L226 Difference]: Without dead ends: 32836 [2019-09-07 13:42:19,145 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 933 GetRequests, 922 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2019-09-07 13:42:19,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32836 states. [2019-09-07 13:42:19,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32836 to 28463. [2019-09-07 13:42:19,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28463 states. [2019-09-07 13:42:19,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28463 states to 28463 states and 37896 transitions. [2019-09-07 13:42:19,966 INFO L78 Accepts]: Start accepts. Automaton has 28463 states and 37896 transitions. Word has length 919 [2019-09-07 13:42:19,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:42:19,967 INFO L475 AbstractCegarLoop]: Abstraction has 28463 states and 37896 transitions. [2019-09-07 13:42:19,967 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-07 13:42:19,967 INFO L276 IsEmpty]: Start isEmpty. Operand 28463 states and 37896 transitions. [2019-09-07 13:42:20,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1044 [2019-09-07 13:42:20,036 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:42:20,038 INFO L399 BasicCegarLoop]: trace histogram [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, 5, 5, 5, 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, 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] [2019-09-07 13:42:20,038 INFO L418 AbstractCegarLoop]: === Iteration 6 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:42:20,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:42:20,039 INFO L82 PathProgramCache]: Analyzing trace with hash -1314434104, now seen corresponding path program 1 times [2019-09-07 13:42:20,039 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:42:20,039 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:42:20,042 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:42:20,042 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:42:20,042 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:42:20,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:42:21,046 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 279 proven. 165 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2019-09-07 13:42:21,053 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:42:21,053 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 13:42:21,078 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:42:21,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:42:21,388 INFO L256 TraceCheckSpWp]: Trace formula consists of 1647 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-07 13:42:21,404 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:42:22,276 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 387 proven. 2 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2019-09-07 13:42:22,281 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 13:42:22,282 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2019-09-07 13:42:22,283 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-07 13:42:22,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-07 13:42:22,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-09-07 13:42:22,284 INFO L87 Difference]: Start difference. First operand 28463 states and 37896 transitions. Second operand 9 states. [2019-09-07 13:42:38,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:42:38,153 INFO L93 Difference]: Finished difference Result 99289 states and 141102 transitions. [2019-09-07 13:42:38,160 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-09-07 13:42:38,161 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1043 [2019-09-07 13:42:38,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:42:38,713 INFO L225 Difference]: With dead ends: 99289 [2019-09-07 13:42:38,713 INFO L226 Difference]: Without dead ends: 70832 [2019-09-07 13:42:38,790 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 1098 GetRequests, 1066 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=250, Invalid=872, Unknown=0, NotChecked=0, Total=1122 [2019-09-07 13:42:38,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70832 states. [2019-09-07 13:42:40,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70832 to 67109. [2019-09-07 13:42:40,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67109 states. [2019-09-07 13:42:40,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67109 states to 67109 states and 87052 transitions. [2019-09-07 13:42:40,334 INFO L78 Accepts]: Start accepts. Automaton has 67109 states and 87052 transitions. Word has length 1043 [2019-09-07 13:42:40,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:42:40,336 INFO L475 AbstractCegarLoop]: Abstraction has 67109 states and 87052 transitions. [2019-09-07 13:42:40,336 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-07 13:42:40,336 INFO L276 IsEmpty]: Start isEmpty. Operand 67109 states and 87052 transitions. [2019-09-07 13:42:40,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1120 [2019-09-07 13:42:40,466 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:42:40,467 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, 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, 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] [2019-09-07 13:42:40,468 INFO L418 AbstractCegarLoop]: === Iteration 7 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:42:40,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:42:40,469 INFO L82 PathProgramCache]: Analyzing trace with hash 310981269, now seen corresponding path program 1 times [2019-09-07 13:42:40,469 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:42:40,469 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:42:40,471 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:42:40,471 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:42:40,471 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:42:40,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:42:43,253 INFO L134 CoverageAnalysis]: Checked inductivity of 571 backedges. 383 proven. 50 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2019-09-07 13:42:43,254 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:42:43,254 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 13:42:43,264 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:42:43,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:42:43,580 INFO L256 TraceCheckSpWp]: Trace formula consists of 1556 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-07 13:42:43,593 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:42:44,400 INFO L134 CoverageAnalysis]: Checked inductivity of 571 backedges. 522 proven. 2 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2019-09-07 13:42:44,405 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 13:42:44,405 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2019-09-07 13:42:44,406 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-07 13:42:44,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-07 13:42:44,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-09-07 13:42:44,407 INFO L87 Difference]: Start difference. First operand 67109 states and 87052 transitions. Second operand 10 states. [2019-09-07 13:43:01,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:43:01,654 INFO L93 Difference]: Finished difference Result 164561 states and 234690 transitions. [2019-09-07 13:43:01,659 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2019-09-07 13:43:01,659 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 1119 [2019-09-07 13:43:01,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:43:02,190 INFO L225 Difference]: With dead ends: 164561 [2019-09-07 13:43:02,190 INFO L226 Difference]: Without dead ends: 97458 [2019-09-07 13:43:02,325 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 1222 GetRequests, 1158 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1511 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=782, Invalid=3508, Unknown=0, NotChecked=0, Total=4290 [2019-09-07 13:43:02,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97458 states. [2019-09-07 13:43:06,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97458 to 93832. [2019-09-07 13:43:06,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93832 states. [2019-09-07 13:43:06,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93832 states to 93832 states and 118808 transitions. [2019-09-07 13:43:06,641 INFO L78 Accepts]: Start accepts. Automaton has 93832 states and 118808 transitions. Word has length 1119 [2019-09-07 13:43:06,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:43:06,642 INFO L475 AbstractCegarLoop]: Abstraction has 93832 states and 118808 transitions. [2019-09-07 13:43:06,642 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-07 13:43:06,642 INFO L276 IsEmpty]: Start isEmpty. Operand 93832 states and 118808 transitions. [2019-09-07 13:43:06,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1181 [2019-09-07 13:43:06,819 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:43:06,820 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-09-07 13:43:06,821 INFO L418 AbstractCegarLoop]: === Iteration 8 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:43:06,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:43:06,821 INFO L82 PathProgramCache]: Analyzing trace with hash 851233015, now seen corresponding path program 1 times [2019-09-07 13:43:06,821 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:43:06,822 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:43:06,822 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:43:06,823 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:43:06,823 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:43:06,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:43:08,580 INFO L134 CoverageAnalysis]: Checked inductivity of 733 backedges. 397 proven. 332 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-09-07 13:43:08,581 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:43:08,581 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 13:43:08,593 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:43:08,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:43:08,923 INFO L256 TraceCheckSpWp]: Trace formula consists of 1620 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-07 13:43:08,935 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:43:09,721 INFO L134 CoverageAnalysis]: Checked inductivity of 733 backedges. 565 proven. 2 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2019-09-07 13:43:09,726 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 13:43:09,727 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5] total 13 [2019-09-07 13:43:09,728 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-09-07 13:43:09,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-09-07 13:43:09,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-09-07 13:43:09,729 INFO L87 Difference]: Start difference. First operand 93832 states and 118808 transitions. Second operand 13 states. [2019-09-07 13:43:27,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:43:27,053 INFO L93 Difference]: Finished difference Result 204995 states and 264844 transitions. [2019-09-07 13:43:27,053 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2019-09-07 13:43:27,053 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 1180 [2019-09-07 13:43:27,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:43:27,402 INFO L225 Difference]: With dead ends: 204995 [2019-09-07 13:43:27,402 INFO L226 Difference]: Without dead ends: 111169 [2019-09-07 13:43:27,529 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 1256 GetRequests, 1211 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 526 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=496, Invalid=1574, Unknown=0, NotChecked=0, Total=2070 [2019-09-07 13:43:27,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111169 states. [2019-09-07 13:43:29,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111169 to 107540. [2019-09-07 13:43:29,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107540 states. [2019-09-07 13:43:29,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107540 states to 107540 states and 132334 transitions. [2019-09-07 13:43:29,320 INFO L78 Accepts]: Start accepts. Automaton has 107540 states and 132334 transitions. Word has length 1180 [2019-09-07 13:43:29,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:43:29,321 INFO L475 AbstractCegarLoop]: Abstraction has 107540 states and 132334 transitions. [2019-09-07 13:43:29,321 INFO L476 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-09-07 13:43:29,321 INFO L276 IsEmpty]: Start isEmpty. Operand 107540 states and 132334 transitions. [2019-09-07 13:43:29,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1364 [2019-09-07 13:43:29,502 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:43:29,503 INFO L399 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:43:29,504 INFO L418 AbstractCegarLoop]: === Iteration 9 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:43:29,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:43:29,505 INFO L82 PathProgramCache]: Analyzing trace with hash 757604288, now seen corresponding path program 1 times [2019-09-07 13:43:29,505 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:43:29,505 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:43:29,506 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:43:29,507 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:43:29,507 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:43:29,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:43:32,843 INFO L134 CoverageAnalysis]: Checked inductivity of 1175 backedges. 579 proven. 510 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2019-09-07 13:43:32,844 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:43:32,844 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 13:43:32,853 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:43:33,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:43:33,228 INFO L256 TraceCheckSpWp]: Trace formula consists of 1888 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-07 13:43:33,239 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:43:33,901 INFO L134 CoverageAnalysis]: Checked inductivity of 1175 backedges. 936 proven. 2 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2019-09-07 13:43:33,906 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 13:43:33,906 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 11 [2019-09-07 13:43:33,908 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-09-07 13:43:33,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-09-07 13:43:33,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2019-09-07 13:43:33,908 INFO L87 Difference]: Start difference. First operand 107540 states and 132334 transitions. Second operand 11 states. [2019-09-07 13:43:53,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:43:53,184 INFO L93 Difference]: Finished difference Result 300999 states and 385473 transitions. [2019-09-07 13:43:53,189 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-09-07 13:43:53,189 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 1363 [2019-09-07 13:43:53,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:43:53,754 INFO L225 Difference]: With dead ends: 300999 [2019-09-07 13:43:53,755 INFO L226 Difference]: Without dead ends: 193465 [2019-09-07 13:43:53,938 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 1397 GetRequests, 1375 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2019-09-07 13:43:54,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193465 states. [2019-09-07 13:43:56,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193465 to 189360. [2019-09-07 13:43:56,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189360 states. [2019-09-07 13:43:57,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189360 states to 189360 states and 225990 transitions. [2019-09-07 13:43:57,158 INFO L78 Accepts]: Start accepts. Automaton has 189360 states and 225990 transitions. Word has length 1363 [2019-09-07 13:43:57,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:43:57,158 INFO L475 AbstractCegarLoop]: Abstraction has 189360 states and 225990 transitions. [2019-09-07 13:43:57,158 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-09-07 13:43:57,159 INFO L276 IsEmpty]: Start isEmpty. Operand 189360 states and 225990 transitions. [2019-09-07 13:43:57,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1427 [2019-09-07 13:43:57,367 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:43:57,369 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:43:57,369 INFO L418 AbstractCegarLoop]: === Iteration 10 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:43:57,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:43:57,369 INFO L82 PathProgramCache]: Analyzing trace with hash 246211930, now seen corresponding path program 1 times [2019-09-07 13:43:57,369 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:43:57,370 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:43:57,370 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:43:57,370 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:43:57,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:43:57,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:44:02,388 INFO L134 CoverageAnalysis]: Checked inductivity of 948 backedges. 641 proven. 0 refuted. 0 times theorem prover too weak. 307 trivial. 0 not checked. [2019-09-07 13:44:02,388 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 13:44:02,389 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-07 13:44:02,390 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-07 13:44:02,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-07 13:44:02,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-09-07 13:44:02,391 INFO L87 Difference]: Start difference. First operand 189360 states and 225990 transitions. Second operand 4 states. [2019-09-07 13:44:11,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:44:11,089 INFO L93 Difference]: Finished difference Result 409029 states and 489057 transitions. [2019-09-07 13:44:11,089 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-07 13:44:11,090 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1426 [2019-09-07 13:44:11,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:44:11,759 INFO L225 Difference]: With dead ends: 409029 [2019-09-07 13:44:11,759 INFO L226 Difference]: Without dead ends: 219679 [2019-09-07 13:44:12,038 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-09-07 13:44:12,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219679 states. [2019-09-07 13:44:14,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219679 to 211262. [2019-09-07 13:44:14,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211262 states. [2019-09-07 13:44:15,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211262 states to 211262 states and 250685 transitions. [2019-09-07 13:44:15,234 INFO L78 Accepts]: Start accepts. Automaton has 211262 states and 250685 transitions. Word has length 1426 [2019-09-07 13:44:15,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:44:15,237 INFO L475 AbstractCegarLoop]: Abstraction has 211262 states and 250685 transitions. [2019-09-07 13:44:15,237 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-07 13:44:15,237 INFO L276 IsEmpty]: Start isEmpty. Operand 211262 states and 250685 transitions. [2019-09-07 13:44:15,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1746 [2019-09-07 13:44:15,512 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:44:15,514 INFO L399 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:44:15,514 INFO L418 AbstractCegarLoop]: === Iteration 11 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:44:15,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:44:15,515 INFO L82 PathProgramCache]: Analyzing trace with hash 952883756, now seen corresponding path program 1 times [2019-09-07 13:44:15,515 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:44:15,515 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:44:15,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:44:15,516 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:44:15,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:44:15,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:44:25,367 INFO L134 CoverageAnalysis]: Checked inductivity of 2254 backedges. 1311 proven. 583 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2019-09-07 13:44:25,368 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:44:25,368 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 13:44:25,379 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:44:25,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:44:25,893 INFO L256 TraceCheckSpWp]: Trace formula consists of 2409 conjuncts, 14 conjunts are in the unsatisfiable core [2019-09-07 13:44:25,907 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:44:27,372 INFO L134 CoverageAnalysis]: Checked inductivity of 2254 backedges. 1248 proven. 90 refuted. 0 times theorem prover too weak. 916 trivial. 0 not checked. [2019-09-07 13:44:27,400 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 13:44:27,401 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 4] total 16 [2019-09-07 13:44:27,403 INFO L454 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-09-07 13:44:27,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-09-07 13:44:27,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2019-09-07 13:44:27,404 INFO L87 Difference]: Start difference. First operand 211262 states and 250685 transitions. Second operand 16 states. [2019-09-07 13:44:30,559 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2019-09-07 13:44:31,978 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 46 [2019-09-07 13:44:35,792 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2019-09-07 13:44:36,551 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 38 [2019-09-07 13:44:37,603 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2019-09-07 13:44:37,770 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2019-09-07 13:44:38,052 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 48 [2019-09-07 13:44:38,881 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2019-09-07 13:44:39,944 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2019-09-07 13:44:40,559 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2019-09-07 13:44:43,849 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 41 [2019-09-07 13:44:47,941 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 63 [2019-09-07 13:44:49,236 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 64 [2019-09-07 13:44:52,390 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 48 [2019-09-07 13:44:56,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:44:56,804 INFO L93 Difference]: Finished difference Result 424146 states and 510019 transitions. [2019-09-07 13:44:56,804 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2019-09-07 13:44:56,804 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 1745 [2019-09-07 13:44:56,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:44:57,430 INFO L225 Difference]: With dead ends: 424146 [2019-09-07 13:44:57,431 INFO L226 Difference]: Without dead ends: 212894 [2019-09-07 13:44:57,709 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 1842 GetRequests, 1786 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 956 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=681, Invalid=2625, Unknown=0, NotChecked=0, Total=3306 [2019-09-07 13:44:58,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212894 states. [2019-09-07 13:45:00,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212894 to 208923. [2019-09-07 13:45:00,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208923 states. [2019-09-07 13:45:06,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208923 states to 208923 states and 245251 transitions. [2019-09-07 13:45:06,898 INFO L78 Accepts]: Start accepts. Automaton has 208923 states and 245251 transitions. Word has length 1745 [2019-09-07 13:45:06,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:45:06,899 INFO L475 AbstractCegarLoop]: Abstraction has 208923 states and 245251 transitions. [2019-09-07 13:45:06,899 INFO L476 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-09-07 13:45:06,899 INFO L276 IsEmpty]: Start isEmpty. Operand 208923 states and 245251 transitions. [2019-09-07 13:45:07,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1886 [2019-09-07 13:45:07,218 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:45:07,219 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-09-07 13:45:07,219 INFO L418 AbstractCegarLoop]: === Iteration 12 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:45:07,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:45:07,220 INFO L82 PathProgramCache]: Analyzing trace with hash -1711859483, now seen corresponding path program 1 times [2019-09-07 13:45:07,220 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:45:07,220 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:45:07,221 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:45:07,221 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:45:07,222 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:45:07,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:45:09,818 INFO L134 CoverageAnalysis]: Checked inductivity of 1758 backedges. 1421 proven. 171 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2019-09-07 13:45:09,819 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:45:09,819 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) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 13:45:09,830 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:45:10,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:45:10,315 INFO L256 TraceCheckSpWp]: Trace formula consists of 2413 conjuncts, 8 conjunts are in the unsatisfiable core [2019-09-07 13:45:10,335 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:45:12,122 INFO L134 CoverageAnalysis]: Checked inductivity of 1758 backedges. 1587 proven. 5 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2019-09-07 13:45:12,128 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 13:45:12,129 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2019-09-07 13:45:12,130 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-07 13:45:12,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-07 13:45:12,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2019-09-07 13:45:12,131 INFO L87 Difference]: Start difference. First operand 208923 states and 245251 transitions. Second operand 9 states. [2019-09-07 13:45:22,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:45:22,925 INFO L93 Difference]: Finished difference Result 463539 states and 548199 transitions. [2019-09-07 13:45:22,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-09-07 13:45:22,926 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1885 [2019-09-07 13:45:22,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:45:23,613 INFO L225 Difference]: With dead ends: 463539 [2019-09-07 13:45:23,614 INFO L226 Difference]: Without dead ends: 254626 [2019-09-07 13:45:24,488 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 1910 GetRequests, 1895 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2019-09-07 13:45:24,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254626 states. [2019-09-07 13:45:28,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254626 to 252689. [2019-09-07 13:45:28,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252689 states. [2019-09-07 13:45:28,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252689 states to 252689 states and 290900 transitions. [2019-09-07 13:45:28,679 INFO L78 Accepts]: Start accepts. Automaton has 252689 states and 290900 transitions. Word has length 1885 [2019-09-07 13:45:28,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:45:28,680 INFO L475 AbstractCegarLoop]: Abstraction has 252689 states and 290900 transitions. [2019-09-07 13:45:28,680 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-07 13:45:28,680 INFO L276 IsEmpty]: Start isEmpty. Operand 252689 states and 290900 transitions. [2019-09-07 13:45:29,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1904 [2019-09-07 13:45:29,177 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:45:29,179 INFO L399 BasicCegarLoop]: trace histogram [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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-09-07 13:45:29,180 INFO L418 AbstractCegarLoop]: === Iteration 13 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:45:29,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:45:29,181 INFO L82 PathProgramCache]: Analyzing trace with hash -86956594, now seen corresponding path program 1 times [2019-09-07 13:45:29,181 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:45:29,181 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:45:29,182 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:45:29,182 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:45:29,183 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:45:29,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:45:30,399 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2019-09-07 13:45:30,549 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2019-09-07 13:45:45,457 INFO L134 CoverageAnalysis]: Checked inductivity of 1937 backedges. 1527 proven. 244 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2019-09-07 13:45:45,457 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:45:45,457 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) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 13:45:45,469 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:45:45,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:45:45,972 INFO L256 TraceCheckSpWp]: Trace formula consists of 2488 conjuncts, 10 conjunts are in the unsatisfiable core [2019-09-07 13:45:45,986 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:45:47,530 INFO L134 CoverageAnalysis]: Checked inductivity of 1937 backedges. 1112 proven. 0 refuted. 0 times theorem prover too weak. 825 trivial. 0 not checked. [2019-09-07 13:45:47,536 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-07 13:45:47,537 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [16] total 17 [2019-09-07 13:45:47,539 INFO L454 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-09-07 13:45:47,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-09-07 13:45:47,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2019-09-07 13:45:47,540 INFO L87 Difference]: Start difference. First operand 252689 states and 290900 transitions. Second operand 17 states. [2019-09-07 13:45:47,883 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-07 13:45:50,254 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 49 [2019-09-07 13:45:50,417 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 42 [2019-09-07 13:45:50,760 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-07 13:45:51,110 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2019-09-07 13:45:51,661 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 76 [2019-09-07 13:45:54,054 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 53 [2019-09-07 13:45:55,272 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 50 [2019-09-07 13:45:56,693 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 62 [2019-09-07 13:45:57,708 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2019-09-07 13:45:59,127 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 50 [2019-09-07 13:46:02,675 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 36 [2019-09-07 13:46:05,735 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 59 [2019-09-07 13:46:07,280 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 38 [2019-09-07 13:46:07,585 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 60 [2019-09-07 13:46:13,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:46:13,023 INFO L93 Difference]: Finished difference Result 420752 states and 476659 transitions. [2019-09-07 13:46:13,023 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2019-09-07 13:46:13,023 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 1903 [2019-09-07 13:46:13,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:46:13,419 INFO L225 Difference]: With dead ends: 420752 [2019-09-07 13:46:13,419 INFO L226 Difference]: Without dead ends: 168073 [2019-09-07 13:46:13,668 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 1974 GetRequests, 1930 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 500 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=472, Invalid=1598, Unknown=0, NotChecked=0, Total=2070 [2019-09-07 13:46:13,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168073 states. [2019-09-07 13:46:15,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168073 to 164997. [2019-09-07 13:46:15,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164997 states. [2019-09-07 13:46:16,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164997 states to 164997 states and 175959 transitions. [2019-09-07 13:46:16,461 INFO L78 Accepts]: Start accepts. Automaton has 164997 states and 175959 transitions. Word has length 1903 [2019-09-07 13:46:16,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:46:16,461 INFO L475 AbstractCegarLoop]: Abstraction has 164997 states and 175959 transitions. [2019-09-07 13:46:16,461 INFO L476 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-09-07 13:46:16,462 INFO L276 IsEmpty]: Start isEmpty. Operand 164997 states and 175959 transitions. [2019-09-07 13:46:16,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3704 [2019-09-07 13:46:16,677 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:46:16,679 INFO L399 BasicCegarLoop]: trace histogram [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, 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, 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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:46:16,679 INFO L418 AbstractCegarLoop]: === Iteration 14 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:46:16,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:46:16,680 INFO L82 PathProgramCache]: Analyzing trace with hash -693512817, now seen corresponding path program 1 times [2019-09-07 13:46:16,680 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:46:16,680 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:46:16,681 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:46:16,682 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:46:16,682 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:46:16,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:46:28,537 INFO L134 CoverageAnalysis]: Checked inductivity of 11629 backedges. 3682 proven. 1521 refuted. 0 times theorem prover too weak. 6426 trivial. 0 not checked. [2019-09-07 13:46:28,537 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:46:28,537 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 13:46:28,549 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:46:29,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:46:29,526 INFO L256 TraceCheckSpWp]: Trace formula consists of 4925 conjuncts, 6 conjunts are in the unsatisfiable core [2019-09-07 13:46:29,547 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:46:33,871 INFO L134 CoverageAnalysis]: Checked inductivity of 11629 backedges. 6641 proven. 2 refuted. 0 times theorem prover too weak. 4986 trivial. 0 not checked. [2019-09-07 13:46:33,878 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 13:46:33,879 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 11 [2019-09-07 13:46:33,882 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-09-07 13:46:33,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-09-07 13:46:33,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2019-09-07 13:46:33,882 INFO L87 Difference]: Start difference. First operand 164997 states and 175959 transitions. Second operand 11 states. [2019-09-07 13:46:47,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:46:47,410 INFO L93 Difference]: Finished difference Result 314490 states and 334528 transitions. [2019-09-07 13:46:47,410 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-09-07 13:46:47,410 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 3703 [2019-09-07 13:46:47,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:46:47,711 INFO L225 Difference]: With dead ends: 314490 [2019-09-07 13:46:47,711 INFO L226 Difference]: Without dead ends: 139213 [2019-09-07 13:46:47,888 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3742 GetRequests, 3719 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=127, Invalid=379, Unknown=0, NotChecked=0, Total=506 [2019-09-07 13:46:48,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139213 states. [2019-09-07 13:46:49,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139213 to 128901. [2019-09-07 13:46:49,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128901 states. [2019-09-07 13:46:49,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128901 states to 128901 states and 131462 transitions. [2019-09-07 13:46:49,807 INFO L78 Accepts]: Start accepts. Automaton has 128901 states and 131462 transitions. Word has length 3703 [2019-09-07 13:46:49,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:46:49,809 INFO L475 AbstractCegarLoop]: Abstraction has 128901 states and 131462 transitions. [2019-09-07 13:46:49,809 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-09-07 13:46:49,809 INFO L276 IsEmpty]: Start isEmpty. Operand 128901 states and 131462 transitions. [2019-09-07 13:46:50,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4544 [2019-09-07 13:46:50,045 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:46:50,047 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, 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, 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, 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-09-07 13:46:50,047 INFO L418 AbstractCegarLoop]: === Iteration 15 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:46:50,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:46:50,049 INFO L82 PathProgramCache]: Analyzing trace with hash -1705954006, now seen corresponding path program 1 times [2019-09-07 13:46:50,049 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:46:50,049 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:46:50,050 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:46:50,050 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:46:50,050 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:46:50,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:47:01,722 INFO L134 CoverageAnalysis]: Checked inductivity of 19949 backedges. 3741 proven. 3063 refuted. 0 times theorem prover too weak. 13145 trivial. 0 not checked. [2019-09-07 13:47:01,722 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:47:01,722 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-07 13:47:01,740 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 13:47:03,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:47:03,046 INFO L256 TraceCheckSpWp]: Trace formula consists of 5883 conjuncts, 47 conjunts are in the unsatisfiable core [2019-09-07 13:47:03,101 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:47:15,299 INFO L134 CoverageAnalysis]: Checked inductivity of 19949 backedges. 3490 proven. 2 refuted. 0 times theorem prover too weak. 16457 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (13)] Exception during sending of exit command (exit): Broken pipe [2019-09-07 13:47:15,308 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 13:47:15,310 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 17 [2019-09-07 13:47:15,316 INFO L454 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-09-07 13:47:15,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-09-07 13:47:15,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2019-09-07 13:47:15,318 INFO L87 Difference]: Start difference. First operand 128901 states and 131462 transitions. Second operand 17 states. [2019-09-07 13:47:34,181 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 43 [2019-09-07 13:47:37,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:47:37,787 INFO L93 Difference]: Finished difference Result 225305 states and 230550 transitions. [2019-09-07 13:47:37,787 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2019-09-07 13:47:37,787 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 4543 [2019-09-07 13:47:37,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:47:38,032 INFO L225 Difference]: With dead ends: 225305 [2019-09-07 13:47:38,032 INFO L226 Difference]: Without dead ends: 129337 [2019-09-07 13:47:38,140 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 4697 GetRequests, 4601 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3127 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=1815, Invalid=7691, Unknown=0, NotChecked=0, Total=9506 [2019-09-07 13:47:38,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129337 states. [2019-09-07 13:47:39,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129337 to 128074. [2019-09-07 13:47:39,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128074 states. [2019-09-07 13:47:39,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128074 states to 128074 states and 130302 transitions. [2019-09-07 13:47:39,416 INFO L78 Accepts]: Start accepts. Automaton has 128074 states and 130302 transitions. Word has length 4543 [2019-09-07 13:47:39,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:47:39,417 INFO L475 AbstractCegarLoop]: Abstraction has 128074 states and 130302 transitions. [2019-09-07 13:47:39,417 INFO L476 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-09-07 13:47:39,417 INFO L276 IsEmpty]: Start isEmpty. Operand 128074 states and 130302 transitions. [2019-09-07 13:47:39,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4556 [2019-09-07 13:47:39,614 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:47:39,616 INFO L399 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 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, 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, 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, 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, 7, 7, 7, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-09-07 13:47:39,616 INFO L418 AbstractCegarLoop]: === Iteration 16 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:47:39,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:47:39,617 INFO L82 PathProgramCache]: Analyzing trace with hash -2027330846, now seen corresponding path program 1 times [2019-09-07 13:47:39,617 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:47:39,617 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:47:39,618 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:47:39,618 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:47:39,618 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:47:39,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:48:04,379 INFO L134 CoverageAnalysis]: Checked inductivity of 21039 backedges. 4050 proven. 5401 refuted. 0 times theorem prover too weak. 11588 trivial. 0 not checked. [2019-09-07 13:48:04,380 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:48:04,380 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 13:48:04,392 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:48:05,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:48:05,684 INFO L256 TraceCheckSpWp]: Trace formula consists of 6009 conjuncts, 27 conjunts are in the unsatisfiable core [2019-09-07 13:48:05,726 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:48:18,781 INFO L134 CoverageAnalysis]: Checked inductivity of 21039 backedges. 6394 proven. 2 refuted. 0 times theorem prover too weak. 14643 trivial. 0 not checked. [2019-09-07 13:48:18,788 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 13:48:18,790 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 7] total 22 [2019-09-07 13:48:18,793 INFO L454 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-09-07 13:48:18,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-09-07 13:48:18,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=387, Unknown=0, NotChecked=0, Total=462 [2019-09-07 13:48:18,794 INFO L87 Difference]: Start difference. First operand 128074 states and 130302 transitions. Second operand 22 states. [2019-09-07 13:48:19,281 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 66 [2019-09-07 13:48:19,739 WARN L188 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2019-09-07 13:48:19,895 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2019-09-07 13:48:20,868 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 57 [2019-09-07 13:48:21,226 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 42 [2019-09-07 13:48:21,919 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 85 [2019-09-07 13:48:23,515 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 67 [2019-09-07 13:48:23,982 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 77 [2019-09-07 13:48:24,298 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 52 [2019-09-07 13:48:24,797 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2019-09-07 13:48:25,202 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 73 [2019-09-07 13:48:25,787 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 68 [2019-09-07 13:48:26,277 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 80 [2019-09-07 13:48:26,913 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 55 [2019-09-07 13:48:28,412 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 53 [2019-09-07 13:48:30,757 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 44 [2019-09-07 13:48:32,530 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 57 [2019-09-07 13:48:32,841 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 79 [2019-09-07 13:48:33,060 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 52 [2019-09-07 13:48:36,855 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2019-09-07 13:48:39,595 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 52 [2019-09-07 13:48:41,901 WARN L188 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2019-09-07 13:48:44,040 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 60 [2019-09-07 13:48:45,700 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 58 [2019-09-07 13:48:45,946 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 46 [2019-09-07 13:48:47,004 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 54 [2019-09-07 13:48:47,285 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 50 [2019-09-07 13:48:49,103 WARN L188 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2019-09-07 13:48:51,235 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 62 [2019-09-07 13:48:51,596 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 40 [2019-09-07 13:48:52,939 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 80 [2019-09-07 13:48:54,619 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 56 [2019-09-07 13:48:55,161 WARN L188 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2019-09-07 13:48:55,509 WARN L188 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 82 [2019-09-07 13:48:55,918 WARN L188 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 88 [2019-09-07 13:48:56,940 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 65 [2019-09-07 13:48:57,491 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 48 [2019-09-07 13:48:58,975 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 58 [2019-09-07 13:48:59,840 WARN L188 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2019-09-07 13:49:00,503 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 61 [2019-09-07 13:49:00,779 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2019-09-07 13:49:01,071 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 52 [2019-09-07 13:49:01,316 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 57 [2019-09-07 13:49:02,053 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2019-09-07 13:49:03,535 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 69 [2019-09-07 13:49:04,976 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2019-09-07 13:49:05,310 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 58 [2019-09-07 13:49:05,484 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 47 [2019-09-07 13:49:06,269 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2019-09-07 13:49:06,475 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 53 [2019-09-07 13:49:06,918 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 62 [2019-09-07 13:49:07,398 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 45 [2019-09-07 13:49:07,717 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2019-09-07 13:49:08,031 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 54 [2019-09-07 13:49:09,466 WARN L188 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 45 [2019-09-07 13:49:10,629 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 53 [2019-09-07 13:49:10,788 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 44 [2019-09-07 13:49:11,213 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 54 [2019-09-07 13:49:11,663 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 64 [2019-09-07 13:49:12,554 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2019-09-07 13:49:12,769 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 62 [2019-09-07 13:49:13,172 WARN L188 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-07 13:49:13,407 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 54 [2019-09-07 13:49:13,548 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 45 [2019-09-07 13:49:13,991 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 75 [2019-09-07 13:49:14,323 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 86 [2019-09-07 13:49:14,482 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2019-09-07 13:49:14,742 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 42 [2019-09-07 13:49:15,182 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 68 [2019-09-07 13:49:15,456 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 56 [2019-09-07 13:49:15,830 WARN L188 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 88 [2019-09-07 13:49:16,129 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 46 [2019-09-07 13:49:16,383 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 48 [2019-09-07 13:49:16,910 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 55 [2019-09-07 13:49:17,248 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 60 [2019-09-07 13:49:17,577 WARN L188 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 66 [2019-09-07 13:49:17,789 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 63 [2019-09-07 13:49:18,069 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 57 [2019-09-07 13:49:18,341 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2019-09-07 13:49:18,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:49:18,949 INFO L93 Difference]: Finished difference Result 230148 states and 234519 transitions. [2019-09-07 13:49:18,949 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 161 states. [2019-09-07 13:49:18,950 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 4555 [2019-09-07 13:49:18,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:49:19,190 INFO L225 Difference]: With dead ends: 230148 [2019-09-07 13:49:19,190 INFO L226 Difference]: Without dead ends: 130766 [2019-09-07 13:49:19,292 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 4831 GetRequests, 4656 SyntacticMatches, 1 SemanticMatches, 174 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12927 ImplicationChecksByTransitivity, 22.2s TimeCoverageRelationStatistics Valid=4400, Invalid=26400, Unknown=0, NotChecked=0, Total=30800 [2019-09-07 13:49:19,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130766 states. [2019-09-07 13:49:20,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130766 to 129746. [2019-09-07 13:49:20,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129746 states. [2019-09-07 13:49:21,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129746 states to 129746 states and 131904 transitions. [2019-09-07 13:49:21,040 INFO L78 Accepts]: Start accepts. Automaton has 129746 states and 131904 transitions. Word has length 4555 [2019-09-07 13:49:21,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:49:21,041 INFO L475 AbstractCegarLoop]: Abstraction has 129746 states and 131904 transitions. [2019-09-07 13:49:21,041 INFO L476 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-09-07 13:49:21,041 INFO L276 IsEmpty]: Start isEmpty. Operand 129746 states and 131904 transitions. [2019-09-07 13:49:21,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4653 [2019-09-07 13:49:21,271 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:49:21,273 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, 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, 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, 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-09-07 13:49:21,273 INFO L418 AbstractCegarLoop]: === Iteration 17 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:49:21,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:49:21,274 INFO L82 PathProgramCache]: Analyzing trace with hash 312110324, now seen corresponding path program 1 times [2019-09-07 13:49:21,274 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:49:21,274 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:49:21,275 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:49:21,275 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:49:21,275 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:49:21,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:49:23,853 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 53 [2019-09-07 13:49:24,006 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2019-09-07 13:50:06,452 INFO L134 CoverageAnalysis]: Checked inductivity of 21786 backedges. 5886 proven. 9318 refuted. 0 times theorem prover too weak. 6582 trivial. 0 not checked. [2019-09-07 13:50:06,452 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:50:06,452 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 13:50:06,463 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:50:07,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:50:07,787 INFO L256 TraceCheckSpWp]: Trace formula consists of 6105 conjuncts, 10 conjunts are in the unsatisfiable core [2019-09-07 13:50:07,812 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:50:07,879 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-09-07 13:50:14,874 INFO L134 CoverageAnalysis]: Checked inductivity of 21786 backedges. 4174 proven. 2 refuted. 0 times theorem prover too weak. 17610 trivial. 0 not checked. [2019-09-07 13:50:14,883 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 13:50:14,884 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 5] total 42 [2019-09-07 13:50:14,890 INFO L454 AbstractCegarLoop]: Interpolant automaton has 42 states [2019-09-07 13:50:14,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2019-09-07 13:50:14,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=1539, Unknown=0, NotChecked=0, Total=1722 [2019-09-07 13:50:14,891 INFO L87 Difference]: Start difference. First operand 129746 states and 131904 transitions. Second operand 42 states. [2019-09-07 13:50:15,103 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2019-09-07 13:50:15,592 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 63 [2019-09-07 13:50:15,793 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 48 [2019-09-07 13:50:16,147 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 38 [2019-09-07 13:50:20,362 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 47 [2019-09-07 13:50:21,143 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 42 [2019-09-07 13:50:25,359 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 47 [2019-09-07 13:50:25,681 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2019-09-07 13:50:26,187 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 44 [2019-09-07 13:50:26,483 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 25 [2019-09-07 13:50:27,163 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 45 [2019-09-07 13:50:29,169 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 59 [2019-09-07 13:50:29,632 WARN L188 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 63 [2019-09-07 13:50:29,987 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 56 [2019-09-07 13:50:30,321 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 40 [2019-09-07 13:50:31,483 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 45 [2019-09-07 13:50:31,827 WARN L188 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 79 [2019-09-07 13:50:33,005 WARN L188 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 41 [2019-09-07 13:50:33,282 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 42 [2019-09-07 13:50:34,035 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 42 [2019-09-07 13:50:40,005 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 65 [2019-09-07 13:50:40,301 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 49 [2019-09-07 13:50:41,110 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 48 [2019-09-07 13:50:45,727 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 43 [2019-09-07 13:50:46,363 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2019-09-07 13:50:47,193 WARN L188 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 81 [2019-09-07 13:50:47,588 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 32 [2019-09-07 13:50:48,018 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 40 [2019-09-07 13:50:49,338 WARN L188 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 86 [2019-09-07 13:50:49,801 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 45 [2019-09-07 13:50:52,888 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2019-09-07 13:50:53,223 WARN L188 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 79 [2019-09-07 13:50:57,319 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 35 [2019-09-07 13:50:57,820 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 41 [2019-09-07 13:50:59,432 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 29 [2019-09-07 13:51:01,202 WARN L188 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 84 [2019-09-07 13:51:02,287 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2019-09-07 13:51:04,155 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 44 [2019-09-07 13:51:04,573 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2019-09-07 13:51:06,208 WARN L188 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 85 [2019-09-07 13:51:06,725 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 48 [2019-09-07 13:51:07,014 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 50 [2019-09-07 13:51:07,210 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2019-09-07 13:51:07,628 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 45 [2019-09-07 13:51:07,973 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 30 [2019-09-07 13:51:08,344 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 48 [2019-09-07 13:51:09,139 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 74 [2019-09-07 13:51:10,055 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 38 [2019-09-07 13:51:10,643 WARN L188 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 92 [2019-09-07 13:51:11,150 WARN L188 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 88 [2019-09-07 13:51:11,480 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 67 [2019-09-07 13:51:11,794 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 44 [2019-09-07 13:51:12,139 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 43 [2019-09-07 13:51:12,517 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 39 [2019-09-07 13:51:12,912 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2019-09-07 13:51:13,314 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 45 [2019-09-07 13:51:13,699 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 51 [2019-09-07 13:51:14,152 WARN L188 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 60 [2019-09-07 13:51:14,642 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 33 [2019-09-07 13:51:15,367 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 59 [2019-09-07 13:51:15,671 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 75 [2019-09-07 13:51:15,940 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 47 [2019-09-07 13:51:16,764 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 39 [2019-09-07 13:51:17,182 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 42 [2019-09-07 13:51:17,379 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2019-09-07 13:51:17,869 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2019-09-07 13:51:18,223 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 35 [2019-09-07 13:51:18,525 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 30 [2019-09-07 13:51:18,872 WARN L188 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 83 [2019-09-07 13:51:19,142 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 31 [2019-09-07 13:51:19,468 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 34 [2019-09-07 13:51:19,837 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 66 [2019-09-07 13:51:20,105 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 34 [2019-09-07 13:51:20,541 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 64 [2019-09-07 13:51:20,971 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 59 [2019-09-07 13:51:21,416 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2019-09-07 13:51:22,024 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 32 [2019-09-07 13:51:22,257 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2019-09-07 13:51:22,435 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 56 [2019-09-07 13:51:22,716 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2019-09-07 13:51:23,014 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2019-09-07 13:51:23,237 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 34 [2019-09-07 13:51:23,651 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 52 [2019-09-07 13:51:23,940 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 48 [2019-09-07 13:51:24,456 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 25 [2019-09-07 13:51:24,765 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 67 [2019-09-07 13:51:25,217 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 43 [2019-09-07 13:51:25,450 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 33 [2019-09-07 13:51:26,104 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 66 [2019-09-07 13:51:26,311 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 57 [2019-09-07 13:51:26,508 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 52 [2019-09-07 13:51:26,821 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 81 [2019-09-07 13:51:27,240 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 39 [2019-09-07 13:51:27,754 WARN L188 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 78 [2019-09-07 13:51:27,938 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 53 [2019-09-07 13:51:28,129 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 41 [2019-09-07 13:51:28,537 WARN L188 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 60 [2019-09-07 13:51:29,092 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 52 [2019-09-07 13:51:29,466 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2019-09-07 13:51:29,843 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2019-09-07 13:51:30,100 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 38 [2019-09-07 13:51:30,360 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 32 [2019-09-07 13:51:30,649 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 38 [2019-09-07 13:51:31,072 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 77 [2019-09-07 13:51:31,308 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 58 [2019-09-07 13:51:31,633 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 31 [2019-09-07 13:51:31,870 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 35 [2019-09-07 13:51:32,309 WARN L188 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 81 [2019-09-07 13:51:32,603 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 59 [2019-09-07 13:51:32,910 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 46 [2019-09-07 13:51:33,287 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 47 [2019-09-07 13:51:33,626 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 59 [2019-09-07 13:51:33,850 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 47 [2019-09-07 13:51:34,309 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 39 [2019-09-07 13:51:34,512 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 43 [2019-09-07 13:51:35,130 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 41 [2019-09-07 13:51:35,429 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 72 [2019-09-07 13:51:35,693 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 50 [2019-09-07 13:51:35,996 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 37 [2019-09-07 13:51:36,336 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 68 [2019-09-07 13:51:37,241 WARN L188 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 88 [2019-09-07 13:51:37,480 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 62 [2019-09-07 13:51:37,727 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 43 [2019-09-07 13:51:37,992 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 40 [2019-09-07 13:51:38,986 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 40 [2019-09-07 13:51:39,507 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 39 [2019-09-07 13:51:39,768 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2019-09-07 13:51:40,120 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 60 [2019-09-07 13:51:40,516 WARN L188 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 74 [2019-09-07 13:51:40,776 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 34 [2019-09-07 13:51:41,461 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 62 [2019-09-07 13:51:41,684 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 52 [2019-09-07 13:51:41,973 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 59 [2019-09-07 13:51:42,504 WARN L188 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 63 [2019-09-07 13:51:42,733 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 53 [2019-09-07 13:51:43,007 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2019-09-07 13:51:43,227 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2019-09-07 13:51:43,594 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 46 [2019-09-07 13:51:44,004 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 42 [2019-09-07 13:51:44,401 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 45 [2019-09-07 13:51:44,737 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 76 [2019-09-07 13:51:44,963 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 34 [2019-09-07 13:51:45,334 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 81 [2019-09-07 13:51:45,747 WARN L188 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 88 [2019-09-07 13:51:46,079 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-09-07 13:51:46,429 WARN L188 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 81 [2019-09-07 13:51:46,826 WARN L188 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 86 [2019-09-07 13:51:47,062 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2019-09-07 13:51:47,393 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2019-09-07 13:51:47,814 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 57 [2019-09-07 13:51:48,263 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 45 [2019-09-07 13:51:48,500 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2019-09-07 13:51:48,748 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-09-07 13:51:49,202 WARN L188 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 91 [2019-09-07 13:51:49,465 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 71 [2019-09-07 13:51:49,879 WARN L188 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 92 [2019-09-07 13:51:50,251 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 73 [2019-09-07 13:51:50,500 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 51 [2019-09-07 13:51:50,845 WARN L188 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 81 [2019-09-07 13:51:51,122 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 72 [2019-09-07 13:51:51,594 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 69 [2019-09-07 13:51:51,814 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 27 [2019-09-07 13:51:52,020 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 30 [2019-09-07 13:51:52,266 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 57 [2019-09-07 13:51:52,614 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 38 [2019-09-07 13:51:52,848 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 36 [2019-09-07 13:51:53,161 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 44 [2019-09-07 13:51:53,416 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 31 [2019-09-07 13:51:53,650 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 44 [2019-09-07 13:51:53,864 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 28 [2019-09-07 13:51:54,319 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 30 [2019-09-07 13:51:54,523 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 36 [2019-09-07 13:51:55,206 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 35 [2019-09-07 13:51:55,373 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 36 [2019-09-07 13:51:55,553 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 45 [2019-09-07 13:51:56,542 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 56 [2019-09-07 13:51:56,733 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 41 [2019-09-07 13:51:57,333 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 46 [2019-09-07 13:51:57,638 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 63 [2019-09-07 13:51:58,248 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2019-09-07 13:51:58,679 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 56 [2019-09-07 13:52:00,109 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 50 [2019-09-07 13:52:00,507 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2019-09-07 13:52:01,231 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2019-09-07 13:52:01,680 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2019-09-07 13:52:01,993 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 39 [2019-09-07 13:52:02,798 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 56 [2019-09-07 13:52:03,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 13:52:03,342 INFO L93 Difference]: Finished difference Result 230374 states and 234817 transitions. [2019-09-07 13:52:03,342 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 268 states. [2019-09-07 13:52:03,342 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 4652 [2019-09-07 13:52:03,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 13:52:03,789 INFO L225 Difference]: With dead ends: 230374 [2019-09-07 13:52:03,789 INFO L226 Difference]: Without dead ends: 136913 [2019-09-07 13:52:03,855 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5139 GetRequests, 4821 SyntacticMatches, 14 SemanticMatches, 304 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39782 ImplicationChecksByTransitivity, 52.4s TimeCoverageRelationStatistics Valid=11405, Invalid=81925, Unknown=0, NotChecked=0, Total=93330 [2019-09-07 13:52:03,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136913 states. [2019-09-07 13:52:04,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136913 to 132417. [2019-09-07 13:52:04,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132417 states. [2019-09-07 13:52:05,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132417 states to 132417 states and 134403 transitions. [2019-09-07 13:52:05,052 INFO L78 Accepts]: Start accepts. Automaton has 132417 states and 134403 transitions. Word has length 4652 [2019-09-07 13:52:05,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 13:52:05,053 INFO L475 AbstractCegarLoop]: Abstraction has 132417 states and 134403 transitions. [2019-09-07 13:52:05,053 INFO L476 AbstractCegarLoop]: Interpolant automaton has 42 states. [2019-09-07 13:52:05,054 INFO L276 IsEmpty]: Start isEmpty. Operand 132417 states and 134403 transitions. [2019-09-07 13:52:05,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4972 [2019-09-07 13:52:05,274 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 13:52:05,276 INFO L399 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 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, 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, 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, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 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, 10, 10, 10, 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, 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, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-09-07 13:52:05,276 INFO L418 AbstractCegarLoop]: === Iteration 18 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 13:52:05,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 13:52:05,278 INFO L82 PathProgramCache]: Analyzing trace with hash -1778427194, now seen corresponding path program 1 times [2019-09-07 13:52:05,278 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 13:52:05,278 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 13:52:05,279 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:52:05,279 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:52:05,279 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 13:52:05,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:52:41,372 INFO L134 CoverageAnalysis]: Checked inductivity of 25696 backedges. 6983 proven. 8400 refuted. 0 times theorem prover too weak. 10313 trivial. 0 not checked. [2019-09-07 13:52:41,372 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 13:52:41,372 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 13:52:41,383 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 13:52:42,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 13:52:42,718 INFO L256 TraceCheckSpWp]: Trace formula consists of 6453 conjuncts, 42 conjunts are in the unsatisfiable core [2019-09-07 13:52:42,751 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 13:52:42,945 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 7 terms [2019-09-07 13:52:42,946 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-09-07 13:52:42,946 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-09-07 13:52:42,947 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-09-07 13:52:42,947 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 7 terms [2019-09-07 13:52:57,459 INFO L134 CoverageAnalysis]: Checked inductivity of 25696 backedges. 6906 proven. 5 refuted. 0 times theorem prover too weak. 18785 trivial. 0 not checked. [2019-09-07 13:52:57,468 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 13:52:57,470 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 10] total 37 [2019-09-07 13:52:57,473 INFO L454 AbstractCegarLoop]: Interpolant automaton has 37 states [2019-09-07 13:52:57,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2019-09-07 13:52:57,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=1168, Unknown=0, NotChecked=0, Total=1332 [2019-09-07 13:52:57,474 INFO L87 Difference]: Start difference. First operand 132417 states and 134403 transitions. Second operand 37 states. [2019-09-07 13:53:01,553 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 77 [2019-09-07 13:53:07,288 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 63 [2019-09-07 13:53:07,706 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 73 [2019-09-07 13:53:09,134 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 56 [2019-09-07 13:53:09,343 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 46 [2019-09-07 13:53:11,440 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 72 [2019-09-07 13:53:12,349 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2019-09-07 13:53:13,850 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 49 [2019-09-07 13:53:17,932 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 72 [2019-09-07 13:53:18,369 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 56 [2019-09-07 13:53:18,782 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 43 [2019-09-07 13:53:19,284 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 52 [2019-09-07 13:53:23,121 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 78 [2019-09-07 13:53:24,093 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 53 [2019-09-07 13:53:24,502 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 49 [2019-09-07 13:53:25,712 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 52 [2019-09-07 13:53:28,650 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 77 [2019-09-07 13:53:29,084 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 75 [2019-09-07 13:53:31,280 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2019-09-07 13:53:31,791 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 69 [2019-09-07 13:53:32,218 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 79 [2019-09-07 13:53:34,985 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 60 [2019-09-07 13:53:35,282 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 62 [2019-09-07 13:53:38,629 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 52 [2019-09-07 13:53:39,852 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 43 [2019-09-07 13:53:40,346 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 52 [2019-09-07 13:53:40,656 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 47 [2019-09-07 13:53:41,228 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2019-09-07 13:53:41,705 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2019-09-07 13:53:43,448 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 81