/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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/systemc/transmitter.16.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 14:08:44,345 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 14:08:44,349 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 14:08:44,385 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-23 14:08:44,386 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-23 14:08:44,387 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-23 14:08:44,389 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-23 14:08:44,391 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-23 14:08:44,394 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-23 14:08:44,395 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-23 14:08:44,396 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-23 14:08:44,398 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-23 14:08:44,398 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 14:08:44,400 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 14:08:44,423 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 14:08:44,425 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 14:08:44,426 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 14:08:44,427 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 14:08:44,429 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 14:08:44,432 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 14:08:44,434 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 14:08:44,436 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 14:08:44,437 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 14:08:44,438 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 14:08:44,442 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-23 14:08:44,442 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-23 14:08:44,443 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-23 14:08:44,444 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-23 14:08:44,444 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-23 14:08:44,446 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-23 14:08:44,446 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-23 14:08:44,447 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-23 14:08:44,448 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-23 14:08:44,449 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-23 14:08:44,451 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-23 14:08:44,451 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-23 14:08:44,452 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-23 14:08:44,453 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-23 14:08:44,453 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 14:08:44,454 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 14:08:44,455 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 14:08:44,460 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 [2021-02-23 14:08:44,519 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 14:08:44,519 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 14:08:44,522 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-23 14:08:44,522 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-23 14:08:44,522 INFO L138 SettingsManager]: * Use SBE=true [2021-02-23 14:08:44,524 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 14:08:44,524 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 14:08:44,524 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 14:08:44,525 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 14:08:44,525 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 14:08:44,525 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 14:08:44,525 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 14:08:44,526 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 14:08:44,526 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 14:08:44,526 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 14:08:44,527 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 14:08:44,527 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 14:08:44,528 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 14:08:44,529 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-23 14:08:44,529 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 14:08:44,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 14:08:44,530 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 14:08:44,530 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-23 14:08:44,531 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-23 14:08:44,531 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-23 14:08:44,531 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-23 14:08:44,531 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 14:08:44,532 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-23 14:08:44,532 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 14:08:44,983 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 14:08:45,015 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 14:08:45,018 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 14:08:45,020 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 14:08:45,021 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 14:08:45,022 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.16.cil.c [2021-02-23 14:08:45,115 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5da873a7/f011386c203c4fca8fba0d38817417ce/FLAG2d70956ae [2021-02-23 14:08:45,947 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 14:08:45,948 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/transmitter.16.cil.c [2021-02-23 14:08:45,976 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5da873a7/f011386c203c4fca8fba0d38817417ce/FLAG2d70956ae [2021-02-23 14:08:46,190 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5da873a7/f011386c203c4fca8fba0d38817417ce [2021-02-23 14:08:46,193 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 14:08:46,208 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 14:08:46,209 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 14:08:46,210 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 14:08:46,214 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 14:08:46,215 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 02:08:46" (1/1) ... [2021-02-23 14:08:46,216 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46d16025 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 02:08:46, skipping insertion in model container [2021-02-23 14:08:46,216 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 02:08:46" (1/1) ... [2021-02-23 14:08:46,225 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 14:08:46,276 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 14:08:46,434 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/systemc/transmitter.16.cil.c[401,414] [2021-02-23 14:08:46,603 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 14:08:46,617 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 14:08:46,631 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/systemc/transmitter.16.cil.c[401,414] [2021-02-23 14:08:46,769 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 14:08:46,851 INFO L208 MainTranslator]: Completed translation [2021-02-23 14:08:46,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 02:08:46 WrapperNode [2021-02-23 14:08:46,852 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 14:08:46,853 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 14:08:46,853 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 14:08:46,865 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 14:08:46,879 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 02:08:46" (1/1) ... [2021-02-23 14:08:46,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 02:08:46" (1/1) ... [2021-02-23 14:08:46,917 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 02:08:46" (1/1) ... [2021-02-23 14:08:46,918 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 02:08:46" (1/1) ... [2021-02-23 14:08:46,954 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 02:08:46" (1/1) ... [2021-02-23 14:08:46,984 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 02:08:46" (1/1) ... [2021-02-23 14:08:46,997 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 02:08:46" (1/1) ... [2021-02-23 14:08:47,014 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 14:08:47,020 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 14:08:47,020 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 14:08:47,021 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 14:08:47,022 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 02:08:46" (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 [2021-02-23 14:08:47,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 14:08:47,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 14:08:47,122 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 14:08:47,122 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2021-02-23 14:08:47,123 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2021-02-23 14:08:47,123 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2021-02-23 14:08:47,123 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2021-02-23 14:08:47,123 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit3 [2021-02-23 14:08:47,123 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit4 [2021-02-23 14:08:47,123 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit5 [2021-02-23 14:08:47,124 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit6 [2021-02-23 14:08:47,124 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit7 [2021-02-23 14:08:47,124 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit8 [2021-02-23 14:08:47,124 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit9 [2021-02-23 14:08:47,124 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit10 [2021-02-23 14:08:47,124 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit11 [2021-02-23 14:08:47,124 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit12 [2021-02-23 14:08:47,125 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit13 [2021-02-23 14:08:47,125 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit14 [2021-02-23 14:08:47,125 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2021-02-23 14:08:47,125 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2021-02-23 14:08:47,125 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2021-02-23 14:08:47,125 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit3_triggered [2021-02-23 14:08:47,126 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit4_triggered [2021-02-23 14:08:47,126 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit5_triggered [2021-02-23 14:08:47,126 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit6_triggered [2021-02-23 14:08:47,126 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit7_triggered [2021-02-23 14:08:47,126 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit8_triggered [2021-02-23 14:08:47,126 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit9_triggered [2021-02-23 14:08:47,127 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit10_triggered [2021-02-23 14:08:47,127 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit11_triggered [2021-02-23 14:08:47,127 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit12_triggered [2021-02-23 14:08:47,127 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit13_triggered [2021-02-23 14:08:47,127 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit14_triggered [2021-02-23 14:08:47,127 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2021-02-23 14:08:47,127 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2021-02-23 14:08:47,128 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2021-02-23 14:08:47,128 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2021-02-23 14:08:47,128 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2021-02-23 14:08:47,128 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2021-02-23 14:08:47,128 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2021-02-23 14:08:47,128 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2021-02-23 14:08:47,129 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2021-02-23 14:08:47,129 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2021-02-23 14:08:47,129 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2021-02-23 14:08:47,129 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2021-02-23 14:08:47,129 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2021-02-23 14:08:47,129 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 14:08:47,130 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 14:08:47,130 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 14:08:47,130 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 14:08:47,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 14:08:47,130 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 14:08:47,130 INFO L130 BoogieDeclarations]: Found specification of procedure error [2021-02-23 14:08:47,130 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2021-02-23 14:08:47,131 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2021-02-23 14:08:47,131 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2021-02-23 14:08:47,131 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit3_triggered [2021-02-23 14:08:47,131 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit4_triggered [2021-02-23 14:08:47,131 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit5_triggered [2021-02-23 14:08:47,131 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit6_triggered [2021-02-23 14:08:47,131 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit7_triggered [2021-02-23 14:08:47,132 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit8_triggered [2021-02-23 14:08:47,132 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit9_triggered [2021-02-23 14:08:47,132 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit10_triggered [2021-02-23 14:08:47,132 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit11_triggered [2021-02-23 14:08:47,132 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit12_triggered [2021-02-23 14:08:47,132 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit13_triggered [2021-02-23 14:08:47,133 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit14_triggered [2021-02-23 14:08:47,133 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2021-02-23 14:08:47,133 INFO L130 BoogieDeclarations]: Found specification of procedure master [2021-02-23 14:08:47,133 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2021-02-23 14:08:47,133 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2021-02-23 14:08:47,133 INFO L130 BoogieDeclarations]: Found specification of procedure transmit3 [2021-02-23 14:08:47,133 INFO L130 BoogieDeclarations]: Found specification of procedure transmit4 [2021-02-23 14:08:47,134 INFO L130 BoogieDeclarations]: Found specification of procedure transmit5 [2021-02-23 14:08:47,134 INFO L130 BoogieDeclarations]: Found specification of procedure transmit6 [2021-02-23 14:08:47,134 INFO L130 BoogieDeclarations]: Found specification of procedure transmit7 [2021-02-23 14:08:47,134 INFO L130 BoogieDeclarations]: Found specification of procedure transmit8 [2021-02-23 14:08:47,134 INFO L130 BoogieDeclarations]: Found specification of procedure transmit9 [2021-02-23 14:08:47,134 INFO L130 BoogieDeclarations]: Found specification of procedure transmit10 [2021-02-23 14:08:47,135 INFO L130 BoogieDeclarations]: Found specification of procedure transmit11 [2021-02-23 14:08:47,135 INFO L130 BoogieDeclarations]: Found specification of procedure transmit12 [2021-02-23 14:08:47,135 INFO L130 BoogieDeclarations]: Found specification of procedure transmit13 [2021-02-23 14:08:47,135 INFO L130 BoogieDeclarations]: Found specification of procedure transmit14 [2021-02-23 14:08:47,135 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2021-02-23 14:08:47,135 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2021-02-23 14:08:47,136 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2021-02-23 14:08:47,136 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2021-02-23 14:08:47,136 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2021-02-23 14:08:47,136 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2021-02-23 14:08:47,136 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2021-02-23 14:08:47,136 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2021-02-23 14:08:47,136 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2021-02-23 14:08:47,137 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2021-02-23 14:08:47,137 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2021-02-23 14:08:47,137 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2021-02-23 14:08:47,137 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 14:08:47,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 14:08:47,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 14:08:47,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 14:08:47,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 14:08:47,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 14:08:47,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 14:08:48,408 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 14:08:48,409 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2021-02-23 14:08:48,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 02:08:48 BoogieIcfgContainer [2021-02-23 14:08:48,412 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 14:08:48,414 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 14:08:48,414 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 14:08:48,418 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 14:08:48,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 02:08:46" (1/3) ... [2021-02-23 14:08:48,419 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59a23498 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 02:08:48, skipping insertion in model container [2021-02-23 14:08:48,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 02:08:46" (2/3) ... [2021-02-23 14:08:48,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59a23498 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 02:08:48, skipping insertion in model container [2021-02-23 14:08:48,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 02:08:48" (3/3) ... [2021-02-23 14:08:48,421 INFO L111 eAbstractionObserver]: Analyzing ICFG transmitter.16.cil.c [2021-02-23 14:08:48,430 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-23 14:08:48,436 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 14:08:48,458 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 14:08:48,492 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 14:08:48,492 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 14:08:48,492 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-23 14:08:48,492 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 14:08:48,493 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 14:08:48,493 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 14:08:48,493 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 14:08:48,493 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 14:08:48,526 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states. [2021-02-23 14:08:48,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-02-23 14:08:48,549 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 14:08:48,550 INFO L422 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] [2021-02-23 14:08:48,552 INFO L428 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 14:08:48,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 14:08:48,565 INFO L82 PathProgramCache]: Analyzing trace with hash 1804074024, now seen corresponding path program 1 times [2021-02-23 14:08:48,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 14:08:48,575 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277144931] [2021-02-23 14:08:48,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 14:08:48,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:08:49,221 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:08:49,223 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:08:49,225 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:08:49,231 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 14:08:49,242 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:08:49,243 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:08:49,725 WARN L202 SmtUtils]: Spent 441.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2021-02-23 14:08:49,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 14:08:49,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:08:49,775 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:08:49,775 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:08:49,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-23 14:08:49,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:08:49,842 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:08:49,843 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 14:08:49,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-23 14:08:49,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:08:49,850 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:08:49,851 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:08:49,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 14:08:49,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:08:49,932 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:08:49,932 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:08:49,934 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:08:49,935 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-23 14:08:50,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-23 14:08:50,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:08:50,073 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:08:50,074 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:08:50,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-02-23 14:08:50,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:08:50,134 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:08:50,135 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:08:50,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 14:08:50,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:08:50,139 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:08:50,139 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:08:50,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-23 14:08:50,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:08:50,146 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:08:50,146 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:08:50,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-23 14:08:50,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:08:50,152 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:08:50,153 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:08:50,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 14:08:50,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:08:50,167 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:08:50,168 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:08:50,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-23 14:08:50,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:08:50,172 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:08:50,172 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:08:50,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-23 14:08:50,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:08:50,176 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:08:50,177 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:08:50,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-23 14:08:50,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:08:50,180 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:08:50,181 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:08:50,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-23 14:08:50,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:08:50,185 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:08:50,185 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:08:50,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-23 14:08:50,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:08:50,189 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:08:50,190 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:08:50,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-23 14:08:50,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:08:50,193 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:08:50,194 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:08:50,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 14:08:50,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:08:50,197 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:08:50,198 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:08:50,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-23 14:08:50,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:08:50,209 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:08:50,211 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:08:50,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-23 14:08:50,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:08:50,215 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:08:50,216 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:08:50,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-23 14:08:50,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:08:50,220 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:08:50,220 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:08:50,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-23 14:08:50,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:08:50,224 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:08:50,225 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:08:50,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-23 14:08:50,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:08:50,256 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:08:50,257 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:08:50,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-02-23 14:08:50,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:08:50,262 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:08:50,263 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:08:50,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 14:08:50,392 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277144931] [2021-02-23 14:08:50,392 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 14:08:50,393 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-23 14:08:50,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339650721] [2021-02-23 14:08:50,400 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-23 14:08:50,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 14:08:50,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-23 14:08:50,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-02-23 14:08:50,418 INFO L87 Difference]: Start difference. First operand 526 states. Second operand 8 states. [2021-02-23 14:08:50,832 WARN L202 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2021-02-23 14:08:50,981 WARN L202 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2021-02-23 14:08:51,360 WARN L202 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2021-02-23 14:08:51,551 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2021-02-23 14:09:00,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 14:09:00,119 INFO L93 Difference]: Finished difference Result 1368 states and 2255 transitions. [2021-02-23 14:09:00,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-23 14:09:00,121 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 254 [2021-02-23 14:09:00,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 14:09:00,147 INFO L225 Difference]: With dead ends: 1368 [2021-02-23 14:09:00,147 INFO L226 Difference]: Without dead ends: 851 [2021-02-23 14:09:00,158 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2021-02-23 14:09:00,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 851 states. [2021-02-23 14:09:00,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 851 to 517. [2021-02-23 14:09:00,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 517 states. [2021-02-23 14:09:00,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 760 transitions. [2021-02-23 14:09:00,408 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 760 transitions. Word has length 254 [2021-02-23 14:09:00,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 14:09:00,409 INFO L480 AbstractCegarLoop]: Abstraction has 517 states and 760 transitions. [2021-02-23 14:09:00,409 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-23 14:09:00,409 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 760 transitions. [2021-02-23 14:09:00,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-02-23 14:09:00,416 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 14:09:00,416 INFO L422 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] [2021-02-23 14:09:00,416 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 14:09:00,417 INFO L428 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 14:09:00,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 14:09:00,418 INFO L82 PathProgramCache]: Analyzing trace with hash 823323242, now seen corresponding path program 1 times [2021-02-23 14:09:00,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 14:09:00,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129132685] [2021-02-23 14:09:00,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 14:09:00,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:00,522 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:00,523 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:00,524 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:00,524 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 14:09:00,527 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:00,527 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:00,859 WARN L202 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2021-02-23 14:09:00,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 14:09:00,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:00,875 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:00,875 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:00,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-23 14:09:00,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:00,911 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:00,911 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 14:09:00,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-23 14:09:00,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:00,915 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:00,916 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:00,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 14:09:00,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:00,956 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:00,956 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:00,957 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:00,958 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-23 14:09:01,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-23 14:09:01,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:01,043 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:01,044 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:01,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-02-23 14:09:01,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:01,077 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:01,078 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:01,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 14:09:01,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:01,081 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:01,082 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:01,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-23 14:09:01,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:01,085 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:01,085 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:01,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-23 14:09:01,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:01,088 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:01,089 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:01,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 14:09:01,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:01,092 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:01,093 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:01,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-23 14:09:01,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:01,096 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:01,096 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:01,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-23 14:09:01,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:01,099 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:01,100 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:01,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-23 14:09:01,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:01,103 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:01,103 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:01,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-23 14:09:01,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:01,108 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:01,108 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:01,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-23 14:09:01,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:01,111 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:01,112 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:01,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-23 14:09:01,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:01,115 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:01,116 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:01,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 14:09:01,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:01,120 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:01,121 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:01,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-23 14:09:01,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:01,124 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:01,125 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:01,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-23 14:09:01,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:01,128 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:01,129 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:01,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-23 14:09:01,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:01,132 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:01,133 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:01,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-23 14:09:01,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:01,138 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:01,139 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:01,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-23 14:09:01,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:01,163 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:01,163 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:01,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-02-23 14:09:01,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:01,168 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:01,168 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:01,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 14:09:01,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129132685] [2021-02-23 14:09:01,293 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 14:09:01,293 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-23 14:09:01,293 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766634237] [2021-02-23 14:09:01,299 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-23 14:09:01,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 14:09:01,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-23 14:09:01,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-02-23 14:09:01,300 INFO L87 Difference]: Start difference. First operand 517 states and 760 transitions. Second operand 8 states. [2021-02-23 14:09:01,691 WARN L202 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2021-02-23 14:09:01,836 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2021-02-23 14:09:02,260 WARN L202 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2021-02-23 14:09:02,456 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2021-02-23 14:09:10,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 14:09:10,701 INFO L93 Difference]: Finished difference Result 1339 states and 2049 transitions. [2021-02-23 14:09:10,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-23 14:09:10,702 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 254 [2021-02-23 14:09:10,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 14:09:10,712 INFO L225 Difference]: With dead ends: 1339 [2021-02-23 14:09:10,712 INFO L226 Difference]: Without dead ends: 851 [2021-02-23 14:09:10,715 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2021-02-23 14:09:10,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 851 states. [2021-02-23 14:09:10,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 851 to 517. [2021-02-23 14:09:10,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 517 states. [2021-02-23 14:09:10,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 759 transitions. [2021-02-23 14:09:10,848 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 759 transitions. Word has length 254 [2021-02-23 14:09:10,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 14:09:10,849 INFO L480 AbstractCegarLoop]: Abstraction has 517 states and 759 transitions. [2021-02-23 14:09:10,849 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-23 14:09:10,849 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 759 transitions. [2021-02-23 14:09:10,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-02-23 14:09:10,854 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 14:09:10,855 INFO L422 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] [2021-02-23 14:09:10,855 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 14:09:10,855 INFO L428 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 14:09:10,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 14:09:10,856 INFO L82 PathProgramCache]: Analyzing trace with hash -263636308, now seen corresponding path program 1 times [2021-02-23 14:09:10,856 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 14:09:10,856 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465116301] [2021-02-23 14:09:10,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 14:09:10,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:10,948 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:10,948 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 14:09:10,951 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:10,951 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 14:09:10,952 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:10,952 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 14:09:10,953 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:10,953 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:11,321 WARN L202 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2021-02-23 14:09:11,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 14:09:11,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:11,361 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:11,362 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 14:09:11,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-23 14:09:11,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:11,403 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:11,403 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:11,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-23 14:09:11,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:11,407 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:11,408 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:11,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 14:09:11,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:11,460 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:11,461 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:11,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-23 14:09:11,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:11,554 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:11,555 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 14:09:11,566 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:11,567 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 14:09:11,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-02-23 14:09:11,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:11,605 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:11,605 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:11,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 14:09:11,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:11,608 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:11,608 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:11,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-23 14:09:11,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:11,612 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:11,613 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:11,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-23 14:09:11,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:11,615 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:11,616 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:11,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 14:09:11,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:11,618 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:11,619 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:11,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-23 14:09:11,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:11,621 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:11,621 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:11,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-23 14:09:11,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:11,624 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:11,625 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:11,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-23 14:09:11,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:11,627 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:11,628 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:11,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-23 14:09:11,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:11,630 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:11,631 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:11,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-23 14:09:11,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:11,634 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:11,634 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:11,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-23 14:09:11,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:11,637 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:11,637 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:11,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 14:09:11,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:11,640 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:11,641 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:11,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-23 14:09:11,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:11,644 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:11,644 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:11,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-23 14:09:11,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:11,647 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:11,647 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:11,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-23 14:09:11,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:11,650 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:11,651 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:11,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-23 14:09:11,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:11,654 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:11,654 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:11,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-23 14:09:11,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:11,676 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:11,676 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:11,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-02-23 14:09:11,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:11,680 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:11,681 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:11,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 14:09:11,804 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465116301] [2021-02-23 14:09:11,804 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 14:09:11,804 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-23 14:09:11,804 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480395474] [2021-02-23 14:09:11,805 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-23 14:09:11,805 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 14:09:11,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-23 14:09:11,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-02-23 14:09:11,806 INFO L87 Difference]: Start difference. First operand 517 states and 759 transitions. Second operand 9 states. [2021-02-23 14:09:12,297 WARN L202 SmtUtils]: Spent 430.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2021-02-23 14:09:12,436 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2021-02-23 14:09:12,625 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2021-02-23 14:09:20,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 14:09:20,838 INFO L93 Difference]: Finished difference Result 1336 states and 2052 transitions. [2021-02-23 14:09:20,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-23 14:09:20,840 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 254 [2021-02-23 14:09:20,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 14:09:20,847 INFO L225 Difference]: With dead ends: 1336 [2021-02-23 14:09:20,848 INFO L226 Difference]: Without dead ends: 851 [2021-02-23 14:09:20,850 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2021-02-23 14:09:20,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 851 states. [2021-02-23 14:09:20,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 851 to 517. [2021-02-23 14:09:20,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 517 states. [2021-02-23 14:09:20,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 756 transitions. [2021-02-23 14:09:20,978 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 756 transitions. Word has length 254 [2021-02-23 14:09:20,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 14:09:20,979 INFO L480 AbstractCegarLoop]: Abstraction has 517 states and 756 transitions. [2021-02-23 14:09:20,979 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-23 14:09:20,979 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 756 transitions. [2021-02-23 14:09:20,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-02-23 14:09:20,983 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 14:09:20,984 INFO L422 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] [2021-02-23 14:09:20,984 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 14:09:20,984 INFO L428 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 14:09:20,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 14:09:20,985 INFO L82 PathProgramCache]: Analyzing trace with hash -182882324, now seen corresponding path program 1 times [2021-02-23 14:09:20,985 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 14:09:20,985 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952925704] [2021-02-23 14:09:20,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 14:09:21,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:21,058 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:21,058 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 14:09:21,061 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:21,061 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 14:09:21,061 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:21,062 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 14:09:21,062 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:21,063 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:21,355 WARN L202 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2021-02-23 14:09:21,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 14:09:21,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:21,376 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:21,377 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 14:09:21,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-23 14:09:21,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:21,412 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:21,412 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:21,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-23 14:09:21,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:21,416 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:21,416 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:21,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 14:09:21,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:21,457 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:21,458 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:21,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-23 14:09:21,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:21,549 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:21,550 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 14:09:21,563 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:21,564 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 14:09:21,577 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:21,577 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 14:09:21,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-02-23 14:09:21,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:21,632 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:21,633 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:21,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 14:09:21,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:21,637 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:21,638 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:21,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-23 14:09:21,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:21,640 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:21,641 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:21,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-23 14:09:21,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:21,645 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:21,646 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:21,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 14:09:21,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:21,648 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:21,649 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:21,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-23 14:09:21,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:21,652 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:21,652 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:21,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-23 14:09:21,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:21,659 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:21,659 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:21,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-23 14:09:21,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:21,663 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:21,664 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:21,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-23 14:09:21,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:21,670 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:21,671 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:21,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-23 14:09:21,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:21,674 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:21,675 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:21,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-23 14:09:21,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:21,679 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:21,679 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:21,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 14:09:21,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:21,683 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:21,683 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:21,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-23 14:09:21,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:21,694 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:21,695 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:21,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-23 14:09:21,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:21,699 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:21,700 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:21,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-23 14:09:21,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:21,703 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:21,706 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:21,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-23 14:09:21,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:21,709 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:21,710 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:21,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-23 14:09:21,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:21,788 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:21,788 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:21,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-02-23 14:09:21,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:21,793 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:21,793 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:21,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 14:09:21,959 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952925704] [2021-02-23 14:09:21,959 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 14:09:21,959 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-23 14:09:21,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290889076] [2021-02-23 14:09:21,960 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-23 14:09:21,960 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 14:09:21,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-23 14:09:21,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-02-23 14:09:21,961 INFO L87 Difference]: Start difference. First operand 517 states and 756 transitions. Second operand 10 states. [2021-02-23 14:09:22,303 WARN L202 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2021-02-23 14:09:22,457 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2021-02-23 14:09:22,678 WARN L202 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2021-02-23 14:09:23,749 WARN L202 SmtUtils]: Spent 736.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 257 [2021-02-23 14:09:24,771 WARN L202 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 137 [2021-02-23 14:09:28,063 WARN L202 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-02-23 14:09:30,233 WARN L202 SmtUtils]: Spent 739.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 256 [2021-02-23 14:09:41,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 14:09:41,901 INFO L93 Difference]: Finished difference Result 2224 states and 3446 transitions. [2021-02-23 14:09:41,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-02-23 14:09:41,902 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 254 [2021-02-23 14:09:41,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 14:09:41,914 INFO L225 Difference]: With dead ends: 2224 [2021-02-23 14:09:41,914 INFO L226 Difference]: Without dead ends: 1739 [2021-02-23 14:09:41,917 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=166, Invalid=434, Unknown=0, NotChecked=0, Total=600 [2021-02-23 14:09:41,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1739 states. [2021-02-23 14:09:42,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1739 to 1055. [2021-02-23 14:09:42,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1055 states. [2021-02-23 14:09:42,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1055 states to 1055 states and 1570 transitions. [2021-02-23 14:09:42,192 INFO L78 Accepts]: Start accepts. Automaton has 1055 states and 1570 transitions. Word has length 254 [2021-02-23 14:09:42,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 14:09:42,192 INFO L480 AbstractCegarLoop]: Abstraction has 1055 states and 1570 transitions. [2021-02-23 14:09:42,192 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-23 14:09:42,193 INFO L276 IsEmpty]: Start isEmpty. Operand 1055 states and 1570 transitions. [2021-02-23 14:09:42,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-02-23 14:09:42,197 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 14:09:42,197 INFO L422 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] [2021-02-23 14:09:42,197 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-23 14:09:42,197 INFO L428 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 14:09:42,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 14:09:42,198 INFO L82 PathProgramCache]: Analyzing trace with hash 1004095018, now seen corresponding path program 1 times [2021-02-23 14:09:42,198 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 14:09:42,198 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037366977] [2021-02-23 14:09:42,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 14:09:42,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:42,273 WARN L141 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-02-23 14:09:42,274 WARN L147 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size 4 [2021-02-23 14:09:42,276 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:42,277 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 14:09:42,277 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:42,278 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 14:09:42,278 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:42,279 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:42,645 WARN L202 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2021-02-23 14:09:42,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 14:09:42,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:42,682 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:42,682 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 14:09:42,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-23 14:09:42,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:42,723 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:42,724 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:42,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-23 14:09:42,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:42,728 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:42,728 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:42,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 14:09:42,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:42,765 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:42,765 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:42,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-23 14:09:42,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:42,844 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:42,845 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 14:09:42,856 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:42,856 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 14:09:42,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-02-23 14:09:42,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:42,890 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:42,890 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:42,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 14:09:42,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:42,893 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:42,894 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:42,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-23 14:09:42,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:42,897 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:42,897 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:42,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-23 14:09:42,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:42,900 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:42,900 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:42,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 14:09:42,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:42,903 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:42,903 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:42,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-23 14:09:42,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:42,905 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:42,906 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:42,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-23 14:09:42,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:42,908 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:42,908 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:42,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-23 14:09:42,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:42,911 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:42,911 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:42,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-23 14:09:42,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:42,914 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:42,914 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:42,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-23 14:09:42,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:42,917 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:42,917 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:42,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-23 14:09:42,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:42,919 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:42,920 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:42,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 14:09:42,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:42,922 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:42,922 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:42,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-23 14:09:42,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:42,925 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:42,925 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:42,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-23 14:09:42,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:42,928 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:42,928 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:42,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-23 14:09:42,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:42,931 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:42,931 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:42,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-23 14:09:42,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:42,934 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:42,934 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:42,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-23 14:09:42,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:42,954 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:42,954 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:42,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-02-23 14:09:42,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:42,958 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:42,958 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:43,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 14:09:43,057 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037366977] [2021-02-23 14:09:43,057 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 14:09:43,057 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-23 14:09:43,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385499957] [2021-02-23 14:09:43,058 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-23 14:09:43,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 14:09:43,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-23 14:09:43,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-02-23 14:09:43,059 INFO L87 Difference]: Start difference. First operand 1055 states and 1570 transitions. Second operand 10 states. [2021-02-23 14:09:43,478 WARN L202 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2021-02-23 14:09:43,639 WARN L202 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2021-02-23 14:09:43,867 WARN L202 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2021-02-23 14:09:52,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 14:09:52,313 INFO L93 Difference]: Finished difference Result 2724 states and 4210 transitions. [2021-02-23 14:09:52,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-23 14:09:52,313 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 254 [2021-02-23 14:09:52,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 14:09:52,325 INFO L225 Difference]: With dead ends: 2724 [2021-02-23 14:09:52,325 INFO L226 Difference]: Without dead ends: 1703 [2021-02-23 14:09:52,330 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2021-02-23 14:09:52,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1703 states. [2021-02-23 14:09:52,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1703 to 1055. [2021-02-23 14:09:52,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1055 states. [2021-02-23 14:09:52,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1055 states to 1055 states and 1562 transitions. [2021-02-23 14:09:52,615 INFO L78 Accepts]: Start accepts. Automaton has 1055 states and 1562 transitions. Word has length 254 [2021-02-23 14:09:52,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 14:09:52,616 INFO L480 AbstractCegarLoop]: Abstraction has 1055 states and 1562 transitions. [2021-02-23 14:09:52,616 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-23 14:09:52,616 INFO L276 IsEmpty]: Start isEmpty. Operand 1055 states and 1562 transitions. [2021-02-23 14:09:52,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-02-23 14:09:52,622 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 14:09:52,623 INFO L422 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] [2021-02-23 14:09:52,623 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-23 14:09:52,623 INFO L428 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 14:09:52,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 14:09:52,627 INFO L82 PathProgramCache]: Analyzing trace with hash -758730708, now seen corresponding path program 1 times [2021-02-23 14:09:52,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 14:09:52,627 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515187375] [2021-02-23 14:09:52,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 14:09:52,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:52,745 WARN L141 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-02-23 14:09:52,746 WARN L147 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size 4 [2021-02-23 14:09:52,748 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:52,749 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 14:09:52,750 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:52,750 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 14:09:52,751 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:52,751 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:53,068 WARN L202 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2021-02-23 14:09:53,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 14:09:53,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:53,093 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:53,094 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 14:09:53,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-23 14:09:53,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:53,134 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:53,135 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:53,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-23 14:09:53,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:53,138 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:53,138 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:53,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 14:09:53,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:53,182 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:53,183 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:53,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-23 14:09:53,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:53,286 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:53,287 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 14:09:53,298 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:53,299 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 14:09:53,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-02-23 14:09:53,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:53,333 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:53,334 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:53,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 14:09:53,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:53,338 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:53,339 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:53,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-23 14:09:53,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:53,341 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:53,341 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:53,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-23 14:09:53,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:53,344 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:53,345 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:53,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 14:09:53,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:53,347 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:53,347 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:53,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-23 14:09:53,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:53,350 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:53,350 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:53,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-23 14:09:53,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:53,352 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:53,353 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:53,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-23 14:09:53,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:53,355 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:53,356 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:53,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-23 14:09:53,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:53,358 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:53,358 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:53,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-23 14:09:53,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:53,361 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:53,361 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:53,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-23 14:09:53,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:53,363 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:53,364 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:53,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 14:09:53,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:53,366 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:53,366 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:53,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-23 14:09:53,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:53,369 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:53,369 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:53,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-23 14:09:53,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:53,371 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:53,372 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:53,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-23 14:09:53,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:53,374 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:53,374 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:53,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-23 14:09:53,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:53,377 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:53,377 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:53,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-23 14:09:53,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:53,396 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:53,397 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:53,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-02-23 14:09:53,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:09:53,400 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:09:53,400 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:09:53,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 14:09:53,504 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515187375] [2021-02-23 14:09:53,504 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 14:09:53,504 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-23 14:09:53,504 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137652933] [2021-02-23 14:09:53,505 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-23 14:09:53,505 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 14:09:53,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-23 14:09:53,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-02-23 14:09:53,506 INFO L87 Difference]: Start difference. First operand 1055 states and 1562 transitions. Second operand 10 states. [2021-02-23 14:09:53,858 WARN L202 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2021-02-23 14:09:54,016 WARN L202 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2021-02-23 14:09:54,249 WARN L202 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2021-02-23 14:10:02,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 14:10:02,789 INFO L93 Difference]: Finished difference Result 2724 states and 4188 transitions. [2021-02-23 14:10:02,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-23 14:10:02,789 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 254 [2021-02-23 14:10:02,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 14:10:02,800 INFO L225 Difference]: With dead ends: 2724 [2021-02-23 14:10:02,800 INFO L226 Difference]: Without dead ends: 1703 [2021-02-23 14:10:02,805 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2021-02-23 14:10:02,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1703 states. [2021-02-23 14:10:03,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1703 to 1055. [2021-02-23 14:10:03,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1055 states. [2021-02-23 14:10:03,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1055 states to 1055 states and 1554 transitions. [2021-02-23 14:10:03,106 INFO L78 Accepts]: Start accepts. Automaton has 1055 states and 1554 transitions. Word has length 254 [2021-02-23 14:10:03,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 14:10:03,109 INFO L480 AbstractCegarLoop]: Abstraction has 1055 states and 1554 transitions. [2021-02-23 14:10:03,109 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-23 14:10:03,109 INFO L276 IsEmpty]: Start isEmpty. Operand 1055 states and 1554 transitions. [2021-02-23 14:10:03,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-02-23 14:10:03,115 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 14:10:03,115 INFO L422 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] [2021-02-23 14:10:03,115 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-23 14:10:03,115 INFO L428 AbstractCegarLoop]: === Iteration 7 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 14:10:03,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 14:10:03,116 INFO L82 PathProgramCache]: Analyzing trace with hash 77890284, now seen corresponding path program 1 times [2021-02-23 14:10:03,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 14:10:03,118 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212491559] [2021-02-23 14:10:03,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 14:10:03,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:03,216 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:03,217 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 14:10:03,219 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:03,221 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 14:10:03,221 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:03,221 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 14:10:03,222 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:03,222 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:03,592 WARN L202 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2021-02-23 14:10:03,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 14:10:03,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:03,612 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:03,613 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 14:10:03,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-23 14:10:03,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:03,644 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:03,644 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:03,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-23 14:10:03,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:03,646 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:03,651 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:03,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 14:10:03,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:03,689 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:03,690 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:03,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-23 14:10:03,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:03,786 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:03,787 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 14:10:03,800 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:03,801 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 14:10:03,812 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:03,813 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 14:10:03,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-02-23 14:10:03,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:03,846 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:03,847 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:03,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 14:10:03,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:03,849 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:03,850 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:03,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-23 14:10:03,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:03,852 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:03,852 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:03,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-23 14:10:03,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:03,856 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:03,856 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:03,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 14:10:03,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:03,858 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:03,859 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:03,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-23 14:10:03,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:03,861 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:03,861 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:03,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-23 14:10:03,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:03,864 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:03,864 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:03,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-23 14:10:03,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:03,866 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:03,867 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:03,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-23 14:10:03,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:03,869 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:03,869 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:03,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-23 14:10:03,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:03,871 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:03,872 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:03,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-23 14:10:03,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:03,874 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:03,875 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:03,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 14:10:03,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:03,877 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:03,877 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:03,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-23 14:10:03,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:03,880 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:03,880 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:03,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-23 14:10:03,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:03,883 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:03,883 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:03,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-23 14:10:03,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:03,885 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:03,886 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:03,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-23 14:10:03,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:03,888 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:03,889 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:03,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-23 14:10:03,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:03,914 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:03,914 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:03,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-02-23 14:10:03,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:03,917 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:03,918 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:04,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 14:10:04,022 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212491559] [2021-02-23 14:10:04,022 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 14:10:04,022 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-23 14:10:04,022 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057134396] [2021-02-23 14:10:04,023 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-23 14:10:04,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 14:10:04,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-23 14:10:04,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-02-23 14:10:04,024 INFO L87 Difference]: Start difference. First operand 1055 states and 1554 transitions. Second operand 10 states. [2021-02-23 14:10:04,448 WARN L202 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2021-02-23 14:10:04,605 WARN L202 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2021-02-23 14:10:04,839 WARN L202 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2021-02-23 14:10:05,906 WARN L202 SmtUtils]: Spent 768.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 257 [2021-02-23 14:10:06,762 WARN L202 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 137 [2021-02-23 14:10:09,571 WARN L202 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-02-23 14:10:11,693 WARN L202 SmtUtils]: Spent 749.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 256 [2021-02-23 14:10:21,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 14:10:21,270 INFO L93 Difference]: Finished difference Result 4576 states and 7104 transitions. [2021-02-23 14:10:21,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-02-23 14:10:21,275 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 254 [2021-02-23 14:10:21,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 14:10:21,296 INFO L225 Difference]: With dead ends: 4576 [2021-02-23 14:10:21,297 INFO L226 Difference]: Without dead ends: 3555 [2021-02-23 14:10:21,302 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=166, Invalid=434, Unknown=0, NotChecked=0, Total=600 [2021-02-23 14:10:21,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3555 states. [2021-02-23 14:10:21,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3555 to 2221. [2021-02-23 14:10:21,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2221 states. [2021-02-23 14:10:21,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2221 states to 2221 states and 3351 transitions. [2021-02-23 14:10:21,992 INFO L78 Accepts]: Start accepts. Automaton has 2221 states and 3351 transitions. Word has length 254 [2021-02-23 14:10:21,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 14:10:21,992 INFO L480 AbstractCegarLoop]: Abstraction has 2221 states and 3351 transitions. [2021-02-23 14:10:21,992 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-23 14:10:21,992 INFO L276 IsEmpty]: Start isEmpty. Operand 2221 states and 3351 transitions. [2021-02-23 14:10:21,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-02-23 14:10:21,997 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 14:10:21,997 INFO L422 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] [2021-02-23 14:10:21,997 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-23 14:10:21,998 INFO L428 AbstractCegarLoop]: === Iteration 8 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 14:10:21,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 14:10:21,998 INFO L82 PathProgramCache]: Analyzing trace with hash 76055918, now seen corresponding path program 1 times [2021-02-23 14:10:21,999 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 14:10:21,999 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962417924] [2021-02-23 14:10:21,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 14:10:22,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:22,113 WARN L141 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-02-23 14:10:22,113 WARN L147 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size 4 [2021-02-23 14:10:22,119 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:22,122 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 14:10:22,123 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:22,123 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 14:10:22,124 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:22,124 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:22,466 WARN L202 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2021-02-23 14:10:22,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 14:10:22,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:22,488 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:22,489 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 14:10:22,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-23 14:10:22,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:22,532 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:22,532 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:22,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-23 14:10:22,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:22,535 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:22,536 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:22,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 14:10:22,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:22,575 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:22,576 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:22,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-23 14:10:22,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:22,696 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:22,697 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 14:10:22,708 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:22,708 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 14:10:22,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-02-23 14:10:22,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:22,738 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:22,738 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:22,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 14:10:22,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:22,741 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:22,741 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:22,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-23 14:10:22,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:22,744 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:22,744 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:22,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-23 14:10:22,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:22,747 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:22,748 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:22,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 14:10:22,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:22,750 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:22,750 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:22,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-23 14:10:22,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:22,752 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:22,753 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:22,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-23 14:10:22,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:22,755 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:22,755 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:22,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-23 14:10:22,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:22,757 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:22,758 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:22,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-23 14:10:22,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:22,760 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:22,760 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:22,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-23 14:10:22,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:22,762 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:22,763 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:22,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-23 14:10:22,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:22,765 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:22,765 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:22,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 14:10:22,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:22,768 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:22,768 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:22,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-23 14:10:22,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:22,770 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:22,771 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:22,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-23 14:10:22,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:22,773 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:22,773 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:22,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-23 14:10:22,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:22,776 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:22,776 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:22,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-23 14:10:22,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:22,779 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:22,779 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:22,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-23 14:10:22,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:22,800 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:22,801 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:22,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-02-23 14:10:22,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:22,804 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:22,804 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:22,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 14:10:22,903 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962417924] [2021-02-23 14:10:22,903 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 14:10:22,903 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-23 14:10:22,903 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073355383] [2021-02-23 14:10:22,904 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-23 14:10:22,904 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 14:10:22,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-23 14:10:22,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-02-23 14:10:22,905 INFO L87 Difference]: Start difference. First operand 2221 states and 3351 transitions. Second operand 10 states. [2021-02-23 14:10:23,312 WARN L202 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2021-02-23 14:10:23,468 WARN L202 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2021-02-23 14:10:23,688 WARN L202 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2021-02-23 14:10:32,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 14:10:32,625 INFO L93 Difference]: Finished difference Result 5684 states and 8839 transitions. [2021-02-23 14:10:32,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-23 14:10:32,626 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 254 [2021-02-23 14:10:32,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 14:10:32,645 INFO L225 Difference]: With dead ends: 5684 [2021-02-23 14:10:32,645 INFO L226 Difference]: Without dead ends: 3497 [2021-02-23 14:10:32,655 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2021-02-23 14:10:32,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3497 states. [2021-02-23 14:10:33,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3497 to 2221. [2021-02-23 14:10:33,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2221 states. [2021-02-23 14:10:33,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2221 states to 2221 states and 3329 transitions. [2021-02-23 14:10:33,148 INFO L78 Accepts]: Start accepts. Automaton has 2221 states and 3329 transitions. Word has length 254 [2021-02-23 14:10:33,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 14:10:33,148 INFO L480 AbstractCegarLoop]: Abstraction has 2221 states and 3329 transitions. [2021-02-23 14:10:33,148 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-23 14:10:33,149 INFO L276 IsEmpty]: Start isEmpty. Operand 2221 states and 3329 transitions. [2021-02-23 14:10:33,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-02-23 14:10:33,151 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 14:10:33,151 INFO L422 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] [2021-02-23 14:10:33,151 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-23 14:10:33,152 INFO L428 AbstractCegarLoop]: === Iteration 9 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 14:10:33,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 14:10:33,152 INFO L82 PathProgramCache]: Analyzing trace with hash -1791227858, now seen corresponding path program 1 times [2021-02-23 14:10:33,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 14:10:33,152 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136065391] [2021-02-23 14:10:33,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 14:10:33,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:33,215 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:33,216 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 14:10:33,218 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:33,218 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 14:10:33,221 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:33,222 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 14:10:33,222 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:33,224 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:33,593 WARN L202 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2021-02-23 14:10:33,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 14:10:33,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:33,611 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:33,611 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 14:10:33,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-23 14:10:33,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:33,644 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:33,645 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:33,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-23 14:10:33,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:33,647 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:33,648 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:33,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 14:10:33,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:33,684 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:33,685 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:33,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-23 14:10:33,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:33,764 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:33,765 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 14:10:33,777 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:33,778 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 14:10:33,789 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:33,790 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 14:10:33,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-02-23 14:10:33,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:33,820 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:33,821 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:33,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 14:10:33,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:33,823 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:33,824 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:33,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-23 14:10:33,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:33,826 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:33,826 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:33,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-23 14:10:33,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:33,830 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:33,830 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:33,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 14:10:33,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:33,832 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:33,832 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:33,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-23 14:10:33,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:33,835 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:33,835 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:33,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-23 14:10:33,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:33,837 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:33,837 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:33,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-23 14:10:33,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:33,839 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:33,840 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:33,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-23 14:10:33,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:33,842 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:33,842 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:33,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-23 14:10:33,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:33,844 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:33,845 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:33,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-23 14:10:33,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:33,847 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:33,847 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:33,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 14:10:33,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:33,850 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:33,850 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:33,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-23 14:10:33,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:33,853 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:33,853 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:33,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-23 14:10:33,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:33,855 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:33,856 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:33,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-23 14:10:33,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:33,858 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:33,859 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:33,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-23 14:10:33,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:33,861 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:33,861 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:33,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-23 14:10:33,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:33,881 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:33,881 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:33,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-02-23 14:10:33,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:33,885 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:33,885 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:34,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 14:10:34,004 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136065391] [2021-02-23 14:10:34,004 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 14:10:34,005 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-23 14:10:34,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40596815] [2021-02-23 14:10:34,006 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-23 14:10:34,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 14:10:34,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-23 14:10:34,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-02-23 14:10:34,007 INFO L87 Difference]: Start difference. First operand 2221 states and 3329 transitions. Second operand 10 states. [2021-02-23 14:10:34,370 WARN L202 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2021-02-23 14:10:34,523 WARN L202 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2021-02-23 14:10:34,749 WARN L202 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2021-02-23 14:10:35,427 WARN L202 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 257 [2021-02-23 14:10:36,258 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2021-02-23 14:10:39,494 WARN L202 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-02-23 14:10:41,473 WARN L202 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2021-02-23 14:10:53,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 14:10:53,676 INFO L93 Difference]: Finished difference Result 9636 states and 15121 transitions. [2021-02-23 14:10:53,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-02-23 14:10:53,676 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 254 [2021-02-23 14:10:53,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 14:10:53,717 INFO L225 Difference]: With dead ends: 9636 [2021-02-23 14:10:53,717 INFO L226 Difference]: Without dead ends: 7449 [2021-02-23 14:10:53,727 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=166, Invalid=434, Unknown=0, NotChecked=0, Total=600 [2021-02-23 14:10:53,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7449 states. [2021-02-23 14:10:55,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7449 to 4817. [2021-02-23 14:10:55,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4817 states. [2021-02-23 14:10:55,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4817 states to 4817 states and 7439 transitions. [2021-02-23 14:10:55,244 INFO L78 Accepts]: Start accepts. Automaton has 4817 states and 7439 transitions. Word has length 254 [2021-02-23 14:10:55,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 14:10:55,245 INFO L480 AbstractCegarLoop]: Abstraction has 4817 states and 7439 transitions. [2021-02-23 14:10:55,245 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-23 14:10:55,245 INFO L276 IsEmpty]: Start isEmpty. Operand 4817 states and 7439 transitions. [2021-02-23 14:10:55,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-02-23 14:10:55,248 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 14:10:55,249 INFO L422 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] [2021-02-23 14:10:55,249 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-23 14:10:55,249 INFO L428 AbstractCegarLoop]: === Iteration 10 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 14:10:55,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 14:10:55,249 INFO L82 PathProgramCache]: Analyzing trace with hash -1545419984, now seen corresponding path program 1 times [2021-02-23 14:10:55,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 14:10:55,250 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525497695] [2021-02-23 14:10:55,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 14:10:55,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:55,331 WARN L141 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-02-23 14:10:55,332 WARN L147 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size 4 [2021-02-23 14:10:55,334 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:55,334 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 14:10:55,337 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:55,339 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 14:10:55,339 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:55,340 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:55,685 WARN L202 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2021-02-23 14:10:55,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 14:10:55,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:55,712 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:55,712 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 14:10:55,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-23 14:10:55,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:55,755 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:55,755 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:55,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-23 14:10:55,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:55,757 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:55,758 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:55,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 14:10:55,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:55,801 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:55,801 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:55,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-23 14:10:55,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:55,882 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:55,883 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 14:10:55,893 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:55,894 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 14:10:55,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-02-23 14:10:55,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:55,924 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:55,925 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:55,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 14:10:55,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:55,928 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:55,928 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:55,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-23 14:10:55,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:55,930 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:55,931 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:55,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-23 14:10:55,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:55,933 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:55,933 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:55,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 14:10:55,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:55,935 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:55,936 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:55,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-23 14:10:55,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:55,939 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:55,939 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:55,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-23 14:10:55,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:55,941 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:55,942 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:55,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-23 14:10:55,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:55,944 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:55,944 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:55,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-23 14:10:55,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:55,946 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:55,947 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:55,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-23 14:10:55,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:55,949 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:55,950 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:55,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-23 14:10:55,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:55,952 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:55,952 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:55,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 14:10:55,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:55,955 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:55,956 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:55,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-23 14:10:55,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:55,958 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:55,959 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:55,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-23 14:10:55,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:55,961 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:55,961 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:55,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-23 14:10:55,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:55,963 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:55,964 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:55,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-23 14:10:55,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:55,967 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:55,968 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:55,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-23 14:10:55,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:55,987 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:55,987 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:55,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-02-23 14:10:55,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:10:55,990 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:10:55,991 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:10:56,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 14:10:56,089 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525497695] [2021-02-23 14:10:56,089 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 14:10:56,089 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-23 14:10:56,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361674063] [2021-02-23 14:10:56,090 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-23 14:10:56,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 14:10:56,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-23 14:10:56,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-02-23 14:10:56,091 INFO L87 Difference]: Start difference. First operand 4817 states and 7439 transitions. Second operand 10 states. [2021-02-23 14:10:56,468 WARN L202 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2021-02-23 14:10:56,625 WARN L202 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2021-02-23 14:10:56,847 WARN L202 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2021-02-23 14:11:06,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 14:11:06,539 INFO L93 Difference]: Finished difference Result 12132 states and 19195 transitions. [2021-02-23 14:11:06,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-23 14:11:06,539 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 254 [2021-02-23 14:11:06,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 14:11:06,575 INFO L225 Difference]: With dead ends: 12132 [2021-02-23 14:11:06,575 INFO L226 Difference]: Without dead ends: 7349 [2021-02-23 14:11:06,597 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2021-02-23 14:11:06,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7349 states. [2021-02-23 14:11:07,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7349 to 4817. [2021-02-23 14:11:07,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4817 states. [2021-02-23 14:11:07,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4817 states to 4817 states and 7377 transitions. [2021-02-23 14:11:07,575 INFO L78 Accepts]: Start accepts. Automaton has 4817 states and 7377 transitions. Word has length 254 [2021-02-23 14:11:07,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 14:11:07,576 INFO L480 AbstractCegarLoop]: Abstraction has 4817 states and 7377 transitions. [2021-02-23 14:11:07,576 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-23 14:11:07,576 INFO L276 IsEmpty]: Start isEmpty. Operand 4817 states and 7377 transitions. [2021-02-23 14:11:07,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-02-23 14:11:07,579 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 14:11:07,579 INFO L422 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] [2021-02-23 14:11:07,580 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-23 14:11:07,580 INFO L428 AbstractCegarLoop]: === Iteration 11 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 14:11:07,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 14:11:07,580 INFO L82 PathProgramCache]: Analyzing trace with hash 1507604592, now seen corresponding path program 1 times [2021-02-23 14:11:07,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 14:11:07,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097274081] [2021-02-23 14:11:07,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 14:11:07,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:11:07,638 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:11:07,639 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 14:11:07,641 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:11:07,641 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 14:11:07,642 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:11:07,642 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 14:11:07,642 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:11:07,643 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:11:08,017 WARN L202 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2021-02-23 14:11:08,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 14:11:08,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:11:08,034 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:11:08,035 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 14:11:08,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-23 14:11:08,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:11:08,069 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:11:08,070 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:11:08,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-23 14:11:08,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:11:08,072 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:11:08,072 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:11:08,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 14:11:08,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:11:08,108 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:11:08,109 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:11:08,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-23 14:11:08,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:11:08,198 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:11:08,199 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 14:11:08,212 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:11:08,213 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 14:11:08,225 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:11:08,225 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 14:11:08,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-02-23 14:11:08,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:11:08,271 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:11:08,271 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:11:08,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 14:11:08,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:11:08,274 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:11:08,274 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:11:08,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-23 14:11:08,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:11:08,277 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:11:08,278 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:11:08,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-23 14:11:08,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:11:08,281 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:11:08,281 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:11:08,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 14:11:08,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:11:08,284 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:11:08,284 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:11:08,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-23 14:11:08,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:11:08,286 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:11:08,286 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:11:08,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-23 14:11:08,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:11:08,288 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:11:08,289 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:11:08,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-23 14:11:08,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:11:08,291 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:11:08,291 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:11:08,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-23 14:11:08,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:11:08,294 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:11:08,295 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:11:08,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-23 14:11:08,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:11:08,308 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:11:08,308 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:11:08,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-23 14:11:08,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:11:08,311 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:11:08,311 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:11:08,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 14:11:08,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:11:08,313 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:11:08,313 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:11:08,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-23 14:11:08,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:11:08,315 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:11:08,315 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:11:08,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-23 14:11:08,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:11:08,327 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:11:08,328 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:11:08,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-23 14:11:08,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:11:08,330 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:11:08,330 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:11:08,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-23 14:11:08,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:11:08,332 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:11:08,332 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:11:08,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-23 14:11:08,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:11:08,351 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:11:08,351 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:11:08,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-02-23 14:11:08,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:11:08,355 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:11:08,355 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:11:08,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 14:11:08,459 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097274081] [2021-02-23 14:11:08,459 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 14:11:08,459 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-23 14:11:08,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170690451] [2021-02-23 14:11:08,461 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-23 14:11:08,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 14:11:08,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-23 14:11:08,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-02-23 14:11:08,463 INFO L87 Difference]: Start difference. First operand 4817 states and 7377 transitions. Second operand 10 states. [2021-02-23 14:11:08,876 WARN L202 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2021-02-23 14:11:09,032 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2021-02-23 14:11:09,257 WARN L202 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2021-02-23 14:11:10,360 WARN L202 SmtUtils]: Spent 779.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 257 [2021-02-23 14:11:11,292 WARN L202 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 137 [2021-02-23 14:11:14,453 WARN L202 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-02-23 14:11:17,017 WARN L202 SmtUtils]: Spent 736.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 256 [2021-02-23 14:11:30,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 14:11:30,514 INFO L93 Difference]: Finished difference Result 20670 states and 32925 transitions. [2021-02-23 14:11:30,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-02-23 14:11:30,514 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 254 [2021-02-23 14:11:30,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 14:11:30,584 INFO L225 Difference]: With dead ends: 20670 [2021-02-23 14:11:30,585 INFO L226 Difference]: Without dead ends: 15887 [2021-02-23 14:11:30,606 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=166, Invalid=434, Unknown=0, NotChecked=0, Total=600 [2021-02-23 14:11:30,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15887 states. [2021-02-23 14:11:32,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15887 to 10675. [2021-02-23 14:11:32,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10675 states. [2021-02-23 14:11:32,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10675 states to 10675 states and 16947 transitions. [2021-02-23 14:11:32,657 INFO L78 Accepts]: Start accepts. Automaton has 10675 states and 16947 transitions. Word has length 254 [2021-02-23 14:11:32,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 14:11:32,657 INFO L480 AbstractCegarLoop]: Abstraction has 10675 states and 16947 transitions. [2021-02-23 14:11:32,658 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-23 14:11:32,658 INFO L276 IsEmpty]: Start isEmpty. Operand 10675 states and 16947 transitions. [2021-02-23 14:11:32,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-02-23 14:11:32,663 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 14:11:32,663 INFO L422 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] [2021-02-23 14:11:32,663 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-02-23 14:11:32,664 INFO L428 AbstractCegarLoop]: === Iteration 12 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 14:11:32,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 14:11:32,664 INFO L82 PathProgramCache]: Analyzing trace with hash -566416210, now seen corresponding path program 1 times [2021-02-23 14:11:32,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 14:11:32,664 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88247387] [2021-02-23 14:11:32,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 14:11:32,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:11:32,728 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:11:32,728 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 14:11:32,731 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:11:32,731 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 14:11:32,731 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:11:32,732 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 14:11:32,732 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:11:32,732 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:11:33,045 WARN L202 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2021-02-23 14:11:33,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 14:11:33,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:11:33,071 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:11:33,071 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 14:11:33,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-23 14:11:33,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:11:33,107 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:11:33,107 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:11:33,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-23 14:11:33,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:11:33,109 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:11:33,110 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:11:33,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 14:11:33,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:11:33,146 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:11:33,147 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:11:33,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-23 14:11:33,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:11:33,224 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:11:33,225 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 14:11:33,237 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:11:33,238 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 14:11:33,251 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:11:33,252 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 14:11:33,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-02-23 14:11:33,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:11:33,287 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:11:33,288 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:11:33,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 14:11:33,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:11:33,291 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:11:33,291 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:11:33,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-23 14:11:33,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:11:33,293 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:11:33,294 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:11:33,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-23 14:11:33,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:11:33,296 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:11:33,296 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:11:33,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 14:11:33,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:11:33,298 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:11:33,298 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:11:33,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-23 14:11:33,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:11:33,300 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:11:33,301 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:11:33,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-23 14:11:33,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:11:33,303 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:11:33,303 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:11:33,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-23 14:11:33,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:11:33,305 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:11:33,305 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:11:33,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-23 14:11:33,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:11:33,307 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:11:33,308 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:11:33,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-23 14:11:33,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:11:33,310 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:11:33,310 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:11:33,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-23 14:11:33,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:11:33,312 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:11:33,312 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:11:33,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 14:11:33,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:11:33,315 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:11:33,315 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:11:33,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-23 14:11:33,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:11:33,317 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:11:33,318 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:11:33,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-23 14:11:33,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:11:33,320 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:11:33,320 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:11:33,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-23 14:11:33,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:11:33,322 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:11:33,323 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:11:33,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-23 14:11:33,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:11:33,324 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:11:33,325 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:11:33,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-23 14:11:33,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:11:33,344 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:11:33,344 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:11:33,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-02-23 14:11:33,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:11:33,347 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:11:33,347 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:11:33,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 14:11:33,570 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88247387] [2021-02-23 14:11:33,570 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 14:11:33,570 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-23 14:11:33,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71187745] [2021-02-23 14:11:33,572 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-23 14:11:33,572 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 14:11:33,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-23 14:11:33,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-02-23 14:11:33,573 INFO L87 Difference]: Start difference. First operand 10675 states and 16947 transitions. Second operand 10 states. [2021-02-23 14:11:34,061 WARN L202 SmtUtils]: Spent 437.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2021-02-23 14:11:34,245 WARN L202 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2021-02-23 14:11:34,487 WARN L202 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2021-02-23 14:11:35,581 WARN L202 SmtUtils]: Spent 755.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 257 [2021-02-23 14:11:36,503 WARN L202 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 137 [2021-02-23 14:11:39,689 WARN L202 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-02-23 14:11:42,659 WARN L202 SmtUtils]: Spent 738.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 256 [2021-02-23 14:11:57,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 14:11:57,521 INFO L93 Difference]: Finished difference Result 45410 states and 74619 transitions. [2021-02-23 14:11:57,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-02-23 14:11:57,521 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 254 [2021-02-23 14:11:57,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 14:11:57,678 INFO L225 Difference]: With dead ends: 45410 [2021-02-23 14:11:57,679 INFO L226 Difference]: Without dead ends: 34769 [2021-02-23 14:11:57,731 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=166, Invalid=434, Unknown=0, NotChecked=0, Total=600 [2021-02-23 14:11:57,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34769 states. [2021-02-23 14:12:02,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34769 to 24389. [2021-02-23 14:12:02,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24389 states. [2021-02-23 14:12:02,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24389 states to 24389 states and 40519 transitions. [2021-02-23 14:12:02,424 INFO L78 Accepts]: Start accepts. Automaton has 24389 states and 40519 transitions. Word has length 254 [2021-02-23 14:12:02,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 14:12:02,425 INFO L480 AbstractCegarLoop]: Abstraction has 24389 states and 40519 transitions. [2021-02-23 14:12:02,425 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-23 14:12:02,425 INFO L276 IsEmpty]: Start isEmpty. Operand 24389 states and 40519 transitions. [2021-02-23 14:12:02,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-02-23 14:12:02,433 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 14:12:02,433 INFO L422 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] [2021-02-23 14:12:02,433 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-02-23 14:12:02,433 INFO L428 AbstractCegarLoop]: === Iteration 13 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 14:12:02,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 14:12:02,434 INFO L82 PathProgramCache]: Analyzing trace with hash -1880246096, now seen corresponding path program 1 times [2021-02-23 14:12:02,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 14:12:02,434 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472975291] [2021-02-23 14:12:02,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 14:12:02,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:12:02,507 WARN L141 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-02-23 14:12:02,508 WARN L147 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size 4 [2021-02-23 14:12:02,511 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:12:02,511 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 14:12:02,511 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:12:02,512 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 14:12:02,512 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:12:02,512 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:12:02,845 WARN L202 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2021-02-23 14:12:02,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 14:12:02,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:12:02,865 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:12:02,866 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 14:12:02,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-23 14:12:02,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:12:02,908 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:12:02,909 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:12:02,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-23 14:12:02,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:12:02,911 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:12:02,912 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:12:02,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 14:12:02,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:12:02,956 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:12:02,957 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:12:03,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-23 14:12:03,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:12:03,046 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:12:03,047 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 14:12:03,059 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:12:03,059 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 14:12:03,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-02-23 14:12:03,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:12:03,087 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:12:03,088 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:12:03,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 14:12:03,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:12:03,090 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:12:03,090 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:12:03,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-23 14:12:03,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:12:03,092 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:12:03,093 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:12:03,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-23 14:12:03,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:12:03,095 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:12:03,096 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:12:03,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 14:12:03,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:12:03,098 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:12:03,098 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:12:03,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-23 14:12:03,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:12:03,100 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:12:03,101 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:12:03,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-23 14:12:03,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:12:03,103 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:12:03,103 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:12:03,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-23 14:12:03,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:12:03,105 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:12:03,106 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:12:03,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-23 14:12:03,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:12:03,108 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:12:03,108 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:12:03,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-23 14:12:03,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:12:03,110 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:12:03,110 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:12:03,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-23 14:12:03,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:12:03,113 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:12:03,113 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:12:03,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 14:12:03,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:12:03,115 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:12:03,115 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:12:03,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-23 14:12:03,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:12:03,118 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:12:03,118 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:12:03,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-23 14:12:03,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:12:03,120 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:12:03,120 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:12:03,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-23 14:12:03,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:12:03,122 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:12:03,123 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:12:03,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-23 14:12:03,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:12:03,125 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:12:03,125 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:12:03,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-23 14:12:03,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:12:03,144 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:12:03,144 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:12:03,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-02-23 14:12:03,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:12:03,147 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:12:03,147 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:12:03,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 14:12:03,355 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472975291] [2021-02-23 14:12:03,355 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 14:12:03,355 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-23 14:12:03,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942625266] [2021-02-23 14:12:03,356 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-23 14:12:03,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 14:12:03,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-23 14:12:03,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-02-23 14:12:03,357 INFO L87 Difference]: Start difference. First operand 24389 states and 40519 transitions. Second operand 10 states. [2021-02-23 14:12:03,746 WARN L202 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2021-02-23 14:12:03,902 WARN L202 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2021-02-23 14:12:04,115 WARN L202 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2021-02-23 14:12:18,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 14:12:18,988 INFO L93 Difference]: Finished difference Result 58812 states and 99735 transitions. [2021-02-23 14:12:18,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-23 14:12:18,989 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 254 [2021-02-23 14:12:18,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 14:12:19,122 INFO L225 Difference]: With dead ends: 58812 [2021-02-23 14:12:19,122 INFO L226 Difference]: Without dead ends: 34457 [2021-02-23 14:12:19,212 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2021-02-23 14:12:19,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34457 states. [2021-02-23 14:12:23,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34457 to 24389. [2021-02-23 14:12:23,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24389 states. [2021-02-23 14:12:23,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24389 states to 24389 states and 40001 transitions. [2021-02-23 14:12:23,980 INFO L78 Accepts]: Start accepts. Automaton has 24389 states and 40001 transitions. Word has length 254 [2021-02-23 14:12:23,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 14:12:23,980 INFO L480 AbstractCegarLoop]: Abstraction has 24389 states and 40001 transitions. [2021-02-23 14:12:23,981 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-23 14:12:23,981 INFO L276 IsEmpty]: Start isEmpty. Operand 24389 states and 40001 transitions. [2021-02-23 14:12:23,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-02-23 14:12:23,988 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 14:12:23,988 INFO L422 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] [2021-02-23 14:12:23,989 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-02-23 14:12:23,989 INFO L428 AbstractCegarLoop]: === Iteration 14 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 14:12:23,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 14:12:23,989 INFO L82 PathProgramCache]: Analyzing trace with hash -2094380176, now seen corresponding path program 1 times [2021-02-23 14:12:23,989 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 14:12:23,990 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002784643] [2021-02-23 14:12:23,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 14:12:24,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:12:24,047 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:12:24,048 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 14:12:24,050 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:12:24,050 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 14:12:24,051 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:12:24,051 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 14:12:24,051 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:12:24,052 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:12:24,379 WARN L202 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2021-02-23 14:12:24,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 14:12:24,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:12:24,394 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:12:24,395 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 14:12:24,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-23 14:12:24,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:12:24,426 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:12:24,427 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:12:24,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-23 14:12:24,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:12:24,429 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:12:24,429 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:12:24,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 14:12:24,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:12:24,468 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:12:24,468 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:12:24,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-23 14:12:24,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:12:24,544 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:12:24,545 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 14:12:24,558 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:12:24,559 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 14:12:24,574 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:12:24,576 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 14:12:24,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-02-23 14:12:24,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:12:24,605 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:12:24,606 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:12:24,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 14:12:24,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:12:24,608 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:12:24,608 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:12:24,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-23 14:12:24,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:12:24,610 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:12:24,610 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:12:24,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-23 14:12:24,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:12:24,612 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:12:24,613 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:12:24,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 14:12:24,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:12:24,616 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:12:24,618 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:12:24,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-23 14:12:24,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:12:24,620 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:12:24,621 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:12:24,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-23 14:12:24,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:12:24,623 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:12:24,623 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:12:24,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-23 14:12:24,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:12:24,625 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:12:24,626 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:12:24,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-23 14:12:24,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:12:24,628 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:12:24,628 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:12:24,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-23 14:12:24,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:12:24,630 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:12:24,630 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:12:24,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-23 14:12:24,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:12:24,632 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:12:24,633 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:12:24,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 14:12:24,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:12:24,635 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:12:24,635 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:12:24,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-23 14:12:24,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:12:24,637 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:12:24,637 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:12:24,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-23 14:12:24,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:12:24,639 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:12:24,639 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:12:24,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-23 14:12:24,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:12:24,641 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:12:24,642 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:12:24,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-23 14:12:24,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:12:24,644 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:12:24,644 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:12:24,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-23 14:12:24,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:12:24,663 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:12:24,663 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:12:24,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-02-23 14:12:24,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:12:24,666 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:12:24,666 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:12:24,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 14:12:24,750 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002784643] [2021-02-23 14:12:24,750 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 14:12:24,750 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-23 14:12:24,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093004188] [2021-02-23 14:12:24,751 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-23 14:12:24,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 14:12:24,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-23 14:12:24,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-02-23 14:12:24,752 INFO L87 Difference]: Start difference. First operand 24389 states and 40001 transitions. Second operand 10 states. [2021-02-23 14:12:25,164 WARN L202 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2021-02-23 14:12:25,325 WARN L202 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2021-02-23 14:12:25,551 WARN L202 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2021-02-23 14:12:26,628 WARN L202 SmtUtils]: Spent 758.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 257 [2021-02-23 14:12:27,526 WARN L202 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 137 [2021-02-23 14:12:30,814 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-02-23 14:12:34,954 WARN L202 SmtUtils]: Spent 743.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 256 [2021-02-23 14:12:55,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 14:12:55,544 INFO L93 Difference]: Finished difference Result 102024 states and 173033 transitions. [2021-02-23 14:12:55,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-02-23 14:12:55,544 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 254 [2021-02-23 14:12:55,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 14:12:55,853 INFO L225 Difference]: With dead ends: 102024 [2021-02-23 14:12:55,853 INFO L226 Difference]: Without dead ends: 77669 [2021-02-23 14:12:55,954 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=166, Invalid=434, Unknown=0, NotChecked=0, Total=600 [2021-02-23 14:12:56,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77669 states. [2021-02-23 14:13:05,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77669 to 57001. [2021-02-23 14:13:05,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57001 states. [2021-02-23 14:13:05,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57001 states to 57001 states and 99079 transitions. [2021-02-23 14:13:05,849 INFO L78 Accepts]: Start accepts. Automaton has 57001 states and 99079 transitions. Word has length 254 [2021-02-23 14:13:05,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 14:13:05,849 INFO L480 AbstractCegarLoop]: Abstraction has 57001 states and 99079 transitions. [2021-02-23 14:13:05,849 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-23 14:13:05,850 INFO L276 IsEmpty]: Start isEmpty. Operand 57001 states and 99079 transitions. [2021-02-23 14:13:05,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-02-23 14:13:05,861 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 14:13:05,861 INFO L422 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] [2021-02-23 14:13:05,861 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-02-23 14:13:05,861 INFO L428 AbstractCegarLoop]: === Iteration 15 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 14:13:05,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 14:13:05,862 INFO L82 PathProgramCache]: Analyzing trace with hash 1479667698, now seen corresponding path program 1 times [2021-02-23 14:13:05,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 14:13:05,862 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39006067] [2021-02-23 14:13:05,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 14:13:05,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:13:05,923 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:13:05,923 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 14:13:05,926 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:13:05,926 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 14:13:05,927 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:13:05,927 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 14:13:05,927 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:13:05,928 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:13:06,442 WARN L202 SmtUtils]: Spent 501.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2021-02-23 14:13:06,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 14:13:06,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:13:06,462 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:13:06,463 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 14:13:06,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-23 14:13:06,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:13:06,493 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:13:06,493 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:13:06,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-23 14:13:06,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:13:06,495 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:13:06,496 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:13:06,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 14:13:06,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:13:06,531 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:13:06,531 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:13:06,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-23 14:13:06,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:13:06,607 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:13:06,607 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 14:13:06,620 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:13:06,620 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 14:13:06,632 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:13:06,633 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 14:13:06,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-02-23 14:13:06,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:13:06,661 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:13:06,661 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:13:06,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 14:13:06,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:13:06,663 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:13:06,663 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:13:06,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-23 14:13:06,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:13:06,665 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:13:06,665 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:13:06,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-23 14:13:06,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:13:06,667 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:13:06,667 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:13:06,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 14:13:06,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:13:06,670 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:13:06,671 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:13:06,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-23 14:13:06,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:13:06,673 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:13:06,673 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:13:06,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-23 14:13:06,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:13:06,675 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:13:06,675 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:13:06,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-23 14:13:06,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:13:06,677 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:13:06,678 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:13:06,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-23 14:13:06,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:13:06,680 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:13:06,680 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:13:06,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-23 14:13:06,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:13:06,682 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:13:06,682 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:13:06,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-23 14:13:06,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:13:06,684 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:13:06,685 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:13:06,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 14:13:06,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:13:06,687 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:13:06,687 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:13:06,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-23 14:13:06,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:13:06,689 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:13:06,689 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:13:06,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-23 14:13:06,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:13:06,691 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:13:06,691 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:13:06,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-23 14:13:06,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:13:06,693 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:13:06,694 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:13:06,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-23 14:13:06,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:13:06,696 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:13:06,696 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:13:06,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-23 14:13:06,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:13:06,713 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:13:06,714 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:13:06,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-02-23 14:13:06,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:13:06,717 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:13:06,717 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:13:06,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 14:13:06,820 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39006067] [2021-02-23 14:13:06,820 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 14:13:06,820 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-23 14:13:06,821 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447709086] [2021-02-23 14:13:06,821 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-23 14:13:06,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 14:13:06,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-23 14:13:06,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-02-23 14:13:06,822 INFO L87 Difference]: Start difference. First operand 57001 states and 99079 transitions. Second operand 10 states. [2021-02-23 14:13:07,220 WARN L202 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2021-02-23 14:13:07,382 WARN L202 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2021-02-23 14:13:07,648 WARN L202 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2021-02-23 14:13:08,665 WARN L202 SmtUtils]: Spent 749.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 257 [2021-02-23 14:13:09,439 WARN L202 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 137 [2021-02-23 14:13:13,060 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-02-23 14:13:19,104 WARN L202 SmtUtils]: Spent 833.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 256 [2021-02-23 14:13:51,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 14:13:51,949 INFO L93 Difference]: Finished difference Result 235502 states and 423499 transitions. [2021-02-23 14:13:51,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-02-23 14:13:51,949 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 254 [2021-02-23 14:13:51,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 14:13:53,028 INFO L225 Difference]: With dead ends: 235502 [2021-02-23 14:13:53,028 INFO L226 Difference]: Without dead ends: 178535 [2021-02-23 14:13:53,326 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=166, Invalid=434, Unknown=0, NotChecked=0, Total=600 [2021-02-23 14:13:53,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178535 states. [2021-02-23 14:14:12,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178535 to 137291. [2021-02-23 14:14:12,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137291 states. [2021-02-23 14:14:13,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137291 states to 137291 states and 256707 transitions. [2021-02-23 14:14:13,903 INFO L78 Accepts]: Start accepts. Automaton has 137291 states and 256707 transitions. Word has length 254 [2021-02-23 14:14:13,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 14:14:13,903 INFO L480 AbstractCegarLoop]: Abstraction has 137291 states and 256707 transitions. [2021-02-23 14:14:13,903 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-23 14:14:13,903 INFO L276 IsEmpty]: Start isEmpty. Operand 137291 states and 256707 transitions. [2021-02-23 14:14:13,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-02-23 14:14:13,924 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 14:14:13,925 INFO L422 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] [2021-02-23 14:14:13,925 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-02-23 14:14:13,925 INFO L428 AbstractCegarLoop]: === Iteration 16 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 14:14:13,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 14:14:13,925 INFO L82 PathProgramCache]: Analyzing trace with hash 625128240, now seen corresponding path program 1 times [2021-02-23 14:14:13,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 14:14:13,926 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535286141] [2021-02-23 14:14:13,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 14:14:13,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:14:13,985 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:14:13,985 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 14:14:13,988 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:14:13,988 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 14:14:13,989 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:14:13,989 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 14:14:13,989 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:14:13,990 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:14:14,321 WARN L202 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2021-02-23 14:14:14,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 14:14:14,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:14:14,338 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:14:14,339 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 14:14:14,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-23 14:14:14,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:14:14,378 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:14:14,378 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:14:14,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-23 14:14:14,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:14:14,380 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:14:14,380 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:14:14,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 14:14:14,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:14:14,416 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:14:14,416 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:14:14,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-23 14:14:14,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:14:14,511 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:14:14,512 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 14:14:14,524 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:14:14,525 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 14:14:14,536 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:14:14,536 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 14:14:14,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-02-23 14:14:14,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:14:14,718 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:14:14,719 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:14:14,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 14:14:14,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:14:14,727 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:14:14,727 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:14:14,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-23 14:14:14,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:14:14,729 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:14:14,730 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:14:14,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-23 14:14:14,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:14:14,732 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:14:14,732 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:14:14,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-23 14:14:14,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:14:14,734 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:14:14,734 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:14:14,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-23 14:14:14,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:14:14,736 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:14:14,736 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:14:14,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-23 14:14:14,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:14:14,738 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:14:14,738 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:14:14,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-23 14:14:14,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:14:14,740 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:14:14,741 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:14:14,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-23 14:14:14,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:14:14,742 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:14:14,743 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:14:14,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-23 14:14:14,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:14:14,744 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:14:14,745 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:14:14,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-23 14:14:14,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:14:14,747 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:14:14,747 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:14:14,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 14:14:14,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:14:14,749 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:14:14,749 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:14:14,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-23 14:14:14,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:14:14,751 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:14:14,751 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:14:14,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-23 14:14:14,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:14:14,753 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:14:14,754 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:14:14,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-23 14:14:14,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:14:14,756 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:14:14,756 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:14:14,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-23 14:14:14,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:14:14,758 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:14:14,758 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:14:14,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-23 14:14:14,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:14:14,793 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:14:14,793 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:14:14,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-02-23 14:14:14,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 14:14:14,796 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 14:14:14,796 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 14:14:14,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 14:14:14,897 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535286141] [2021-02-23 14:14:14,897 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 14:14:14,897 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-23 14:14:14,897 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584426810] [2021-02-23 14:14:14,898 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-23 14:14:14,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 14:14:14,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-23 14:14:14,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-02-23 14:14:14,899 INFO L87 Difference]: Start difference. First operand 137291 states and 256707 transitions. Second operand 10 states. [2021-02-23 14:14:15,305 WARN L202 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2021-02-23 14:14:15,526 WARN L202 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2021-02-23 14:14:15,746 WARN L202 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2021-02-23 14:14:16,406 WARN L202 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 257 [2021-02-23 14:14:17,195 WARN L202 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2021-02-23 14:14:22,184 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-02-23 14:14:31,978 WARN L202 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2021-02-23 14:15:35,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 14:15:35,592 INFO L93 Difference]: Finished difference Result 565119 states and 1101673 transitions. [2021-02-23 14:15:35,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-02-23 14:15:35,593 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 254 [2021-02-23 14:15:35,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 14:15:38,051 INFO L225 Difference]: With dead ends: 565119 [2021-02-23 14:15:38,051 INFO L226 Difference]: Without dead ends: 427862 [2021-02-23 14:15:38,652 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=166, Invalid=434, Unknown=0, NotChecked=0, Total=600 [2021-02-23 14:15:38,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427862 states.