/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-b7b32d2 [2021-02-19 18:15:04,849 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-19 18:15:04,852 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-19 18:15:04,889 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-19 18:15:04,890 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-19 18:15:04,892 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-19 18:15:04,893 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-19 18:15:04,896 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-19 18:15:04,898 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-19 18:15:04,899 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-19 18:15:04,901 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-19 18:15:04,902 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-19 18:15:04,903 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-19 18:15:04,904 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-19 18:15:04,905 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-19 18:15:04,907 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-19 18:15:04,921 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-19 18:15:04,922 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-19 18:15:04,927 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-19 18:15:04,935 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-19 18:15:04,939 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-19 18:15:04,941 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-19 18:15:04,947 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-19 18:15:04,949 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-19 18:15:04,955 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-19 18:15:04,955 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-19 18:15:04,956 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-19 18:15:04,962 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-19 18:15:04,963 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-19 18:15:04,965 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-19 18:15:04,965 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-19 18:15:04,968 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-19 18:15:04,970 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-19 18:15:04,972 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-19 18:15:04,973 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-19 18:15:04,973 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-19 18:15:04,974 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-19 18:15:04,974 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-19 18:15:04,975 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-19 18:15:04,976 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-19 18:15:04,977 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-19 18:15:04,978 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 [2021-02-19 18:15:05,040 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-19 18:15:05,041 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-19 18:15:05,042 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-19 18:15:05,042 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-19 18:15:05,043 INFO L138 SettingsManager]: * Use SBE=true [2021-02-19 18:15:05,043 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-19 18:15:05,043 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-19 18:15:05,044 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-19 18:15:05,044 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-19 18:15:05,044 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-19 18:15:05,044 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-19 18:15:05,045 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-19 18:15:05,045 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-19 18:15:05,045 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-19 18:15:05,045 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-19 18:15:05,046 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-19 18:15:05,046 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-19 18:15:05,046 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-19 18:15:05,047 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-19 18:15:05,047 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-19 18:15:05,047 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-19 18:15:05,048 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-19 18:15:05,048 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-19 18:15:05,048 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-19 18:15:05,048 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-19 18:15:05,049 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-19 18:15:05,049 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-19 18:15:05,049 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-19 18:15:05,049 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-19 18:15:05,404 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-19 18:15:05,430 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-19 18:15:05,433 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-19 18:15:05,435 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-19 18:15:05,435 INFO L275 PluginConnector]: CDTParser initialized [2021-02-19 18:15:05,436 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.16.cil.c [2021-02-19 18:15:05,510 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/540d5633c/8dc43737c27a49e1bf010732a83d1ecd/FLAG44ed0b61b [2021-02-19 18:15:06,177 INFO L306 CDTParser]: Found 1 translation units. [2021-02-19 18:15:06,178 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/transmitter.16.cil.c [2021-02-19 18:15:06,213 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/540d5633c/8dc43737c27a49e1bf010732a83d1ecd/FLAG44ed0b61b [2021-02-19 18:15:06,539 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/540d5633c/8dc43737c27a49e1bf010732a83d1ecd [2021-02-19 18:15:06,543 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-19 18:15:06,558 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-19 18:15:06,561 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-19 18:15:06,562 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-19 18:15:06,566 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-19 18:15:06,567 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 06:15:06" (1/1) ... [2021-02-19 18:15:06,570 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@650fdd72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 06:15:06, skipping insertion in model container [2021-02-19 18:15:06,571 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 06:15:06" (1/1) ... [2021-02-19 18:15:06,580 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-19 18:15:06,656 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-19 18:15:06,851 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] [2021-02-19 18:15:07,099 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-19 18:15:07,121 INFO L203 MainTranslator]: Completed pre-run [2021-02-19 18:15:07,139 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] [2021-02-19 18:15:07,278 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-19 18:15:07,361 INFO L208 MainTranslator]: Completed translation [2021-02-19 18:15:07,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 06:15:07 WrapperNode [2021-02-19 18:15:07,362 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-19 18:15:07,382 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-19 18:15:07,382 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-19 18:15:07,384 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-19 18:15:07,401 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 06:15:07" (1/1) ... [2021-02-19 18:15:07,402 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 06:15:07" (1/1) ... [2021-02-19 18:15:07,440 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 06:15:07" (1/1) ... [2021-02-19 18:15:07,441 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 06:15:07" (1/1) ... [2021-02-19 18:15:07,491 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 06:15:07" (1/1) ... [2021-02-19 18:15:07,534 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 06:15:07" (1/1) ... [2021-02-19 18:15:07,545 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 06:15:07" (1/1) ... [2021-02-19 18:15:07,559 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-19 18:15:07,560 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-19 18:15:07,560 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-19 18:15:07,562 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-19 18:15:07,563 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 06:15:07" (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 [2021-02-19 18:15:07,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-19 18:15:07,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-19 18:15:07,675 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-19 18:15:07,676 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2021-02-19 18:15:07,676 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2021-02-19 18:15:07,676 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2021-02-19 18:15:07,676 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2021-02-19 18:15:07,676 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit3 [2021-02-19 18:15:07,676 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit4 [2021-02-19 18:15:07,677 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit5 [2021-02-19 18:15:07,677 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit6 [2021-02-19 18:15:07,677 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit7 [2021-02-19 18:15:07,677 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit8 [2021-02-19 18:15:07,677 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit9 [2021-02-19 18:15:07,677 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit10 [2021-02-19 18:15:07,678 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit11 [2021-02-19 18:15:07,678 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit12 [2021-02-19 18:15:07,678 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit13 [2021-02-19 18:15:07,678 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit14 [2021-02-19 18:15:07,678 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2021-02-19 18:15:07,679 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2021-02-19 18:15:07,679 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2021-02-19 18:15:07,679 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit3_triggered [2021-02-19 18:15:07,679 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit4_triggered [2021-02-19 18:15:07,679 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit5_triggered [2021-02-19 18:15:07,679 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit6_triggered [2021-02-19 18:15:07,679 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit7_triggered [2021-02-19 18:15:07,680 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit8_triggered [2021-02-19 18:15:07,680 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit9_triggered [2021-02-19 18:15:07,680 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit10_triggered [2021-02-19 18:15:07,680 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit11_triggered [2021-02-19 18:15:07,680 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit12_triggered [2021-02-19 18:15:07,680 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit13_triggered [2021-02-19 18:15:07,681 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit14_triggered [2021-02-19 18:15:07,681 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2021-02-19 18:15:07,681 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2021-02-19 18:15:07,681 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2021-02-19 18:15:07,681 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2021-02-19 18:15:07,681 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2021-02-19 18:15:07,682 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2021-02-19 18:15:07,682 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2021-02-19 18:15:07,682 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2021-02-19 18:15:07,682 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2021-02-19 18:15:07,682 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2021-02-19 18:15:07,682 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2021-02-19 18:15:07,683 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2021-02-19 18:15:07,683 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2021-02-19 18:15:07,683 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-19 18:15:07,683 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-19 18:15:07,683 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-19 18:15:07,683 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-19 18:15:07,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-19 18:15:07,684 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-19 18:15:07,684 INFO L130 BoogieDeclarations]: Found specification of procedure error [2021-02-19 18:15:07,684 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2021-02-19 18:15:07,684 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2021-02-19 18:15:07,684 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2021-02-19 18:15:07,685 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit3_triggered [2021-02-19 18:15:07,685 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit4_triggered [2021-02-19 18:15:07,685 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit5_triggered [2021-02-19 18:15:07,685 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit6_triggered [2021-02-19 18:15:07,685 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit7_triggered [2021-02-19 18:15:07,685 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit8_triggered [2021-02-19 18:15:07,686 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit9_triggered [2021-02-19 18:15:07,686 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit10_triggered [2021-02-19 18:15:07,686 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit11_triggered [2021-02-19 18:15:07,686 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit12_triggered [2021-02-19 18:15:07,686 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit13_triggered [2021-02-19 18:15:07,686 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit14_triggered [2021-02-19 18:15:07,687 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2021-02-19 18:15:07,687 INFO L130 BoogieDeclarations]: Found specification of procedure master [2021-02-19 18:15:07,687 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2021-02-19 18:15:07,687 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2021-02-19 18:15:07,687 INFO L130 BoogieDeclarations]: Found specification of procedure transmit3 [2021-02-19 18:15:07,687 INFO L130 BoogieDeclarations]: Found specification of procedure transmit4 [2021-02-19 18:15:07,688 INFO L130 BoogieDeclarations]: Found specification of procedure transmit5 [2021-02-19 18:15:07,688 INFO L130 BoogieDeclarations]: Found specification of procedure transmit6 [2021-02-19 18:15:07,688 INFO L130 BoogieDeclarations]: Found specification of procedure transmit7 [2021-02-19 18:15:07,688 INFO L130 BoogieDeclarations]: Found specification of procedure transmit8 [2021-02-19 18:15:07,688 INFO L130 BoogieDeclarations]: Found specification of procedure transmit9 [2021-02-19 18:15:07,688 INFO L130 BoogieDeclarations]: Found specification of procedure transmit10 [2021-02-19 18:15:07,689 INFO L130 BoogieDeclarations]: Found specification of procedure transmit11 [2021-02-19 18:15:07,689 INFO L130 BoogieDeclarations]: Found specification of procedure transmit12 [2021-02-19 18:15:07,689 INFO L130 BoogieDeclarations]: Found specification of procedure transmit13 [2021-02-19 18:15:07,689 INFO L130 BoogieDeclarations]: Found specification of procedure transmit14 [2021-02-19 18:15:07,689 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2021-02-19 18:15:07,689 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2021-02-19 18:15:07,690 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2021-02-19 18:15:07,690 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2021-02-19 18:15:07,690 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2021-02-19 18:15:07,690 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2021-02-19 18:15:07,690 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2021-02-19 18:15:07,690 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2021-02-19 18:15:07,691 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2021-02-19 18:15:07,691 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2021-02-19 18:15:07,691 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2021-02-19 18:15:07,691 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2021-02-19 18:15:07,691 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-19 18:15:07,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-19 18:15:07,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-19 18:15:07,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-19 18:15:07,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-19 18:15:07,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-19 18:15:07,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-19 18:15:09,080 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-19 18:15:09,080 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2021-02-19 18:15:09,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 06:15:09 BoogieIcfgContainer [2021-02-19 18:15:09,086 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-19 18:15:09,088 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-19 18:15:09,088 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-19 18:15:09,092 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-19 18:15:09,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.02 06:15:06" (1/3) ... [2021-02-19 18:15:09,094 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e25798f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 06:15:09, skipping insertion in model container [2021-02-19 18:15:09,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 06:15:07" (2/3) ... [2021-02-19 18:15:09,096 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e25798f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 06:15:09, skipping insertion in model container [2021-02-19 18:15:09,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 06:15:09" (3/3) ... [2021-02-19 18:15:09,099 INFO L111 eAbstractionObserver]: Analyzing ICFG transmitter.16.cil.c [2021-02-19 18:15:09,111 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-19 18:15:09,117 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-19 18:15:09,137 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-19 18:15:09,182 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-19 18:15:09,183 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-19 18:15:09,183 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-19 18:15:09,183 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-19 18:15:09,183 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-19 18:15:09,184 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-19 18:15:09,184 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-19 18:15:09,184 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-19 18:15:09,228 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states. [2021-02-19 18:15:09,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-02-19 18:15:09,262 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 18:15:09,266 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] [2021-02-19 18:15:09,266 INFO L428 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 18:15:09,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:15:09,277 INFO L82 PathProgramCache]: Analyzing trace with hash 1804074024, now seen corresponding path program 1 times [2021-02-19 18:15:09,287 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:15:09,288 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527466768] [2021-02-19 18:15:09,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:15:09,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:09,764 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:09,766 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:09,769 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:09,777 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:15:09,793 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:09,794 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:10,392 WARN L202 SmtUtils]: Spent 562.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2021-02-19 18:15:10,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 18:15:10,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:10,420 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:10,420 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:10,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 18:15:10,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:10,494 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:10,495 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-19 18:15:10,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 18:15:10,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:10,500 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:10,501 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:10,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-19 18:15:10,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:10,569 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:10,570 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:10,571 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:10,571 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-19 18:15:10,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-19 18:15:10,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:10,716 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:10,717 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:10,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-02-19 18:15:10,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:10,791 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:10,792 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:10,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-19 18:15:10,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:10,797 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:10,797 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:10,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-19 18:15:10,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:10,801 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:10,802 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:10,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-19 18:15:10,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:10,806 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:10,807 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:10,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-19 18:15:10,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:10,811 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:10,811 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:10,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-19 18:15:10,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:10,815 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:10,816 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:10,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-19 18:15:10,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:10,820 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:10,821 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:10,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-19 18:15:10,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:10,825 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:10,826 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:10,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-19 18:15:10,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:10,830 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:10,831 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:10,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-19 18:15:10,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:10,835 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:10,836 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:10,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-19 18:15:10,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:10,840 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:10,841 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:10,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-19 18:15:10,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:10,845 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:10,845 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:10,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-19 18:15:10,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:10,849 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:10,850 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:10,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-19 18:15:10,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:10,854 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:10,855 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:10,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-19 18:15:10,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:10,859 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:10,860 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:10,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-19 18:15:10,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:10,864 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:10,865 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:10,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-19 18:15:10,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:10,911 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:10,912 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:10,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-02-19 18:15:10,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:10,920 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:10,921 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:11,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:15:11,107 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527466768] [2021-02-19 18:15:11,108 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:15:11,108 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-19 18:15:11,109 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810094126] [2021-02-19 18:15:11,115 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-19 18:15:11,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:15:11,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-19 18:15:11,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-02-19 18:15:11,132 INFO L87 Difference]: Start difference. First operand 526 states. Second operand 8 states. [2021-02-19 18:15:11,663 WARN L202 SmtUtils]: Spent 440.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2021-02-19 18:15:11,854 WARN L202 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2021-02-19 18:15:12,364 WARN L202 SmtUtils]: Spent 464.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2021-02-19 18:15:12,572 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2021-02-19 18:15:21,446 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-02-19 18:15:22,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:15:22,263 INFO L93 Difference]: Finished difference Result 1368 states and 2255 transitions. [2021-02-19 18:15:22,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 18:15:22,265 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 254 [2021-02-19 18:15:22,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:15:22,293 INFO L225 Difference]: With dead ends: 1368 [2021-02-19 18:15:22,294 INFO L226 Difference]: Without dead ends: 851 [2021-02-19 18:15:22,305 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2021-02-19 18:15:22,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 851 states. [2021-02-19 18:15:22,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 851 to 517. [2021-02-19 18:15:22,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 517 states. [2021-02-19 18:15:22,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 760 transitions. [2021-02-19 18:15:22,603 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 760 transitions. Word has length 254 [2021-02-19 18:15:22,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:15:22,607 INFO L480 AbstractCegarLoop]: Abstraction has 517 states and 760 transitions. [2021-02-19 18:15:22,607 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-19 18:15:22,607 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 760 transitions. [2021-02-19 18:15:22,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-02-19 18:15:22,618 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 18:15:22,619 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] [2021-02-19 18:15:22,619 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-19 18:15:22,620 INFO L428 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 18:15:22,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:15:22,620 INFO L82 PathProgramCache]: Analyzing trace with hash 823323242, now seen corresponding path program 1 times [2021-02-19 18:15:22,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:15:22,621 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399487913] [2021-02-19 18:15:22,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:15:22,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:22,776 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:22,778 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:22,779 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:22,780 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:15:22,784 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:22,784 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:23,197 WARN L202 SmtUtils]: Spent 399.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2021-02-19 18:15:23,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 18:15:23,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:23,213 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:23,214 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:23,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 18:15:23,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:23,255 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:23,255 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-19 18:15:23,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 18:15:23,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:23,259 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:23,259 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:23,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-19 18:15:23,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:23,305 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:23,306 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:23,307 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:23,307 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-19 18:15:23,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-19 18:15:23,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:23,430 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:23,431 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:23,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-02-19 18:15:23,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:23,461 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:23,462 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:23,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-19 18:15:23,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:23,465 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:23,465 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:23,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-19 18:15:23,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:23,470 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:23,471 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:23,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-19 18:15:23,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:23,474 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:23,474 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:23,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-19 18:15:23,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:23,477 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:23,478 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:23,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-19 18:15:23,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:23,481 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:23,482 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:23,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-19 18:15:23,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:23,485 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:23,486 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:23,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-19 18:15:23,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:23,488 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:23,489 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:23,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-19 18:15:23,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:23,492 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:23,492 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:23,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-19 18:15:23,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:23,495 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:23,496 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:23,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-19 18:15:23,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:23,499 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:23,500 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:23,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-19 18:15:23,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:23,503 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:23,504 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:23,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-19 18:15:23,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:23,507 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:23,508 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:23,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-19 18:15:23,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:23,511 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:23,511 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:23,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-19 18:15:23,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:23,514 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:23,515 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:23,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-19 18:15:23,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:23,519 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:23,520 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:23,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-19 18:15:23,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:23,544 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:23,544 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:23,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-02-19 18:15:23,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:23,548 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:23,549 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:23,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:15:23,700 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399487913] [2021-02-19 18:15:23,700 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:15:23,700 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-19 18:15:23,700 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219389561] [2021-02-19 18:15:23,702 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-19 18:15:23,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:15:23,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-19 18:15:23,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-02-19 18:15:23,703 INFO L87 Difference]: Start difference. First operand 517 states and 760 transitions. Second operand 8 states. [2021-02-19 18:15:24,213 WARN L202 SmtUtils]: Spent 463.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2021-02-19 18:15:24,382 WARN L202 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2021-02-19 18:15:24,915 WARN L202 SmtUtils]: Spent 473.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2021-02-19 18:15:25,125 WARN L202 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2021-02-19 18:15:34,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:15:34,244 INFO L93 Difference]: Finished difference Result 1339 states and 2049 transitions. [2021-02-19 18:15:34,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 18:15:34,245 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 254 [2021-02-19 18:15:34,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:15:34,253 INFO L225 Difference]: With dead ends: 1339 [2021-02-19 18:15:34,254 INFO L226 Difference]: Without dead ends: 851 [2021-02-19 18:15:34,257 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2021-02-19 18:15:34,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 851 states. [2021-02-19 18:15:34,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 851 to 517. [2021-02-19 18:15:34,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 517 states. [2021-02-19 18:15:34,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 759 transitions. [2021-02-19 18:15:34,381 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 759 transitions. Word has length 254 [2021-02-19 18:15:34,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:15:34,381 INFO L480 AbstractCegarLoop]: Abstraction has 517 states and 759 transitions. [2021-02-19 18:15:34,381 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-19 18:15:34,381 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 759 transitions. [2021-02-19 18:15:34,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-02-19 18:15:34,385 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 18:15:34,386 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] [2021-02-19 18:15:34,386 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-19 18:15:34,386 INFO L428 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 18:15:34,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:15:34,387 INFO L82 PathProgramCache]: Analyzing trace with hash -263636308, now seen corresponding path program 1 times [2021-02-19 18:15:34,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:15:34,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321513860] [2021-02-19 18:15:34,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:15:34,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:34,470 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:34,471 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:15:34,474 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:34,474 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:15:34,475 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:34,475 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:15:34,476 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:34,476 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:34,985 WARN L202 SmtUtils]: Spent 497.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2021-02-19 18:15:34,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 18:15:35,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:35,064 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:35,066 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-19 18:15:35,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 18:15:35,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:35,115 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:35,116 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:35,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 18:15:35,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:35,119 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:35,123 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:35,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-19 18:15:35,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:35,177 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:35,177 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:35,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-19 18:15:35,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:35,307 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:35,307 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:15:35,327 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:35,328 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:15:35,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-02-19 18:15:35,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:35,390 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:35,390 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:35,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-19 18:15:35,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:35,402 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:35,402 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:35,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-19 18:15:35,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:35,406 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:35,406 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:35,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-19 18:15:35,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:35,410 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:35,410 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:35,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-19 18:15:35,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:35,415 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:35,419 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:35,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-19 18:15:35,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:35,423 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:35,423 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:35,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-19 18:15:35,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:35,427 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:35,428 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:35,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-19 18:15:35,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:35,432 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:35,432 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:35,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-19 18:15:35,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:35,435 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:35,436 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:35,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-19 18:15:35,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:35,440 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:35,441 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:35,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-19 18:15:35,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:35,443 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:35,444 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:35,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-19 18:15:35,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:35,449 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:35,449 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:35,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-19 18:15:35,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:35,452 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:35,453 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:35,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-19 18:15:35,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:35,456 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:35,460 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:35,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-19 18:15:35,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:35,464 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:35,468 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:35,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-19 18:15:35,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:35,473 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:35,474 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:35,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-19 18:15:35,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:35,511 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:35,512 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:35,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-02-19 18:15:35,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:35,516 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:35,517 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:35,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:15:35,619 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321513860] [2021-02-19 18:15:35,620 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:15:35,620 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-19 18:15:35,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558627111] [2021-02-19 18:15:35,621 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-19 18:15:35,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:15:35,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-19 18:15:35,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-02-19 18:15:35,622 INFO L87 Difference]: Start difference. First operand 517 states and 759 transitions. Second operand 9 states. [2021-02-19 18:15:36,138 WARN L202 SmtUtils]: Spent 465.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2021-02-19 18:15:36,333 WARN L202 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2021-02-19 18:15:36,611 WARN L202 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2021-02-19 18:15:36,940 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-02-19 18:15:45,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:15:45,852 INFO L93 Difference]: Finished difference Result 1336 states and 2052 transitions. [2021-02-19 18:15:45,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 18:15:45,853 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 254 [2021-02-19 18:15:45,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:15:45,860 INFO L225 Difference]: With dead ends: 1336 [2021-02-19 18:15:45,860 INFO L226 Difference]: Without dead ends: 851 [2021-02-19 18:15:45,863 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2021-02-19 18:15:45,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 851 states. [2021-02-19 18:15:45,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 851 to 517. [2021-02-19 18:15:45,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 517 states. [2021-02-19 18:15:45,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 756 transitions. [2021-02-19 18:15:45,980 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 756 transitions. Word has length 254 [2021-02-19 18:15:45,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:15:45,981 INFO L480 AbstractCegarLoop]: Abstraction has 517 states and 756 transitions. [2021-02-19 18:15:45,981 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-19 18:15:45,981 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 756 transitions. [2021-02-19 18:15:45,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-02-19 18:15:45,985 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 18:15:45,985 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] [2021-02-19 18:15:45,985 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-19 18:15:45,986 INFO L428 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 18:15:45,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:15:45,986 INFO L82 PathProgramCache]: Analyzing trace with hash -182882324, now seen corresponding path program 1 times [2021-02-19 18:15:45,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:15:45,987 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573705376] [2021-02-19 18:15:45,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:15:46,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:46,058 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:46,058 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:15:46,061 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:46,062 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:15:46,062 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:46,063 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:15:46,063 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:46,064 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:46,607 WARN L202 SmtUtils]: Spent 532.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2021-02-19 18:15:46,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 18:15:46,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:46,629 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:46,630 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:15:46,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 18:15:46,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:46,689 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:46,689 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:46,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 18:15:46,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:46,692 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:46,692 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:46,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-19 18:15:46,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:46,756 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:46,756 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:46,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-19 18:15:46,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:46,866 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:46,866 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-19 18:15:46,882 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:46,883 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-19 18:15:46,896 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:46,896 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:15:46,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-02-19 18:15:46,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:46,935 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:46,935 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:46,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-19 18:15:46,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:46,938 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:46,939 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:46,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-19 18:15:46,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:46,942 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:46,942 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:46,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-19 18:15:46,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:46,945 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:46,945 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:46,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-19 18:15:46,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:46,948 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:46,948 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:46,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-19 18:15:46,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:46,951 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:46,951 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:46,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-19 18:15:46,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:46,954 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:46,954 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:46,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-19 18:15:46,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:46,957 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:46,958 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:46,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-19 18:15:46,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:46,961 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:46,961 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:46,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-19 18:15:46,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:46,964 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:46,965 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:46,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-19 18:15:46,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:46,967 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:46,968 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:46,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-19 18:15:46,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:46,971 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:46,971 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:46,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-19 18:15:46,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:46,974 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:46,974 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:46,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-19 18:15:46,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:46,977 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:46,977 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:46,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-19 18:15:46,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:46,980 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:46,980 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:46,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-19 18:15:46,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:46,983 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:46,983 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:46,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-19 18:15:46,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:47,004 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:47,004 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:47,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-02-19 18:15:47,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:15:47,009 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:15:47,009 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:15:47,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:15:47,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573705376] [2021-02-19 18:15:47,113 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:15:47,113 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-19 18:15:47,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682091052] [2021-02-19 18:15:47,114 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-19 18:15:47,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:15:47,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-19 18:15:47,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-02-19 18:15:47,116 INFO L87 Difference]: Start difference. First operand 517 states and 756 transitions. Second operand 10 states. [2021-02-19 18:15:47,555 WARN L202 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2021-02-19 18:15:47,767 WARN L202 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2021-02-19 18:15:48,050 WARN L202 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2021-02-19 18:15:48,378 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-02-19 18:15:49,360 WARN L202 SmtUtils]: Spent 962.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 257 [2021-02-19 18:15:49,500 WARN L202 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-02-19 18:15:50,549 WARN L202 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 137 [2021-02-19 18:15:54,223 WARN L202 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-02-19 18:15:56,822 WARN L202 SmtUtils]: Spent 974.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 256 [2021-02-19 18:15:56,946 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-02-19 18:16:10,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:16:10,192 INFO L93 Difference]: Finished difference Result 2224 states and 3446 transitions. [2021-02-19 18:16:10,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-02-19 18:16:10,193 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 254 [2021-02-19 18:16:10,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:16:10,205 INFO L225 Difference]: With dead ends: 2224 [2021-02-19 18:16:10,205 INFO L226 Difference]: Without dead ends: 1739 [2021-02-19 18:16:10,208 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=166, Invalid=434, Unknown=0, NotChecked=0, Total=600 [2021-02-19 18:16:10,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1739 states. [2021-02-19 18:16:10,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1739 to 1055. [2021-02-19 18:16:10,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1055 states. [2021-02-19 18:16:10,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1055 states to 1055 states and 1570 transitions. [2021-02-19 18:16:10,473 INFO L78 Accepts]: Start accepts. Automaton has 1055 states and 1570 transitions. Word has length 254 [2021-02-19 18:16:10,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:16:10,474 INFO L480 AbstractCegarLoop]: Abstraction has 1055 states and 1570 transitions. [2021-02-19 18:16:10,474 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-19 18:16:10,474 INFO L276 IsEmpty]: Start isEmpty. Operand 1055 states and 1570 transitions. [2021-02-19 18:16:10,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-02-19 18:16:10,478 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 18:16:10,478 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] [2021-02-19 18:16:10,478 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-19 18:16:10,479 INFO L428 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 18:16:10,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:16:10,479 INFO L82 PathProgramCache]: Analyzing trace with hash 1004095018, now seen corresponding path program 1 times [2021-02-19 18:16:10,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:16:10,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931988510] [2021-02-19 18:16:10,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:16:10,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:10,552 WARN L141 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-02-19 18:16:10,552 WARN L147 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size 4 [2021-02-19 18:16:10,555 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:10,556 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:16:10,556 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:10,557 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:16:10,557 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:10,558 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:11,016 WARN L202 SmtUtils]: Spent 444.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2021-02-19 18:16:11,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 18:16:11,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:11,052 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:11,052 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:16:11,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 18:16:11,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:11,101 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:11,102 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:11,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 18:16:11,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:11,104 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:11,105 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:11,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-19 18:16:11,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:11,149 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:11,149 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:11,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-19 18:16:11,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:11,247 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:11,248 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:16:11,260 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:11,260 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:16:11,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-02-19 18:16:11,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:11,294 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:11,295 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:11,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-19 18:16:11,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:11,298 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:11,298 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:11,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-19 18:16:11,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:11,300 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:11,301 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:11,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-19 18:16:11,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:11,303 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:11,304 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:11,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-19 18:16:11,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:11,306 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:11,306 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:11,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-19 18:16:11,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:11,308 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:11,309 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:11,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-19 18:16:11,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:11,311 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:11,312 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:11,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-19 18:16:11,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:11,314 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:11,314 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:11,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-19 18:16:11,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:11,317 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:11,317 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:11,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-19 18:16:11,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:11,319 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:11,320 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:11,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-19 18:16:11,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:11,322 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:11,323 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:11,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-19 18:16:11,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:11,325 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:11,326 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:11,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-19 18:16:11,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:11,328 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:11,328 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:11,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-19 18:16:11,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:11,331 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:11,331 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:11,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-19 18:16:11,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:11,334 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:11,334 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:11,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-19 18:16:11,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:11,337 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:11,337 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:11,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-19 18:16:11,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:11,377 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:11,378 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:11,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-02-19 18:16:11,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:11,381 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:11,382 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:11,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:16:11,476 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931988510] [2021-02-19 18:16:11,476 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:16:11,477 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-19 18:16:11,477 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670989121] [2021-02-19 18:16:11,477 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-19 18:16:11,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:16:11,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-19 18:16:11,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-02-19 18:16:11,478 INFO L87 Difference]: Start difference. First operand 1055 states and 1570 transitions. Second operand 10 states. [2021-02-19 18:16:11,966 WARN L202 SmtUtils]: Spent 437.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2021-02-19 18:16:12,166 WARN L202 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2021-02-19 18:16:12,440 WARN L202 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2021-02-19 18:16:12,790 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-02-19 18:16:21,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:16:21,921 INFO L93 Difference]: Finished difference Result 2724 states and 4210 transitions. [2021-02-19 18:16:21,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 18:16:21,922 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 254 [2021-02-19 18:16:21,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:16:21,933 INFO L225 Difference]: With dead ends: 2724 [2021-02-19 18:16:21,933 INFO L226 Difference]: Without dead ends: 1703 [2021-02-19 18:16:21,938 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2021-02-19 18:16:21,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1703 states. [2021-02-19 18:16:22,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1703 to 1055. [2021-02-19 18:16:22,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1055 states. [2021-02-19 18:16:22,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1055 states to 1055 states and 1562 transitions. [2021-02-19 18:16:22,210 INFO L78 Accepts]: Start accepts. Automaton has 1055 states and 1562 transitions. Word has length 254 [2021-02-19 18:16:22,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:16:22,211 INFO L480 AbstractCegarLoop]: Abstraction has 1055 states and 1562 transitions. [2021-02-19 18:16:22,211 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-19 18:16:22,211 INFO L276 IsEmpty]: Start isEmpty. Operand 1055 states and 1562 transitions. [2021-02-19 18:16:22,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-02-19 18:16:22,215 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 18:16:22,215 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] [2021-02-19 18:16:22,216 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-19 18:16:22,216 INFO L428 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 18:16:22,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:16:22,216 INFO L82 PathProgramCache]: Analyzing trace with hash -758730708, now seen corresponding path program 1 times [2021-02-19 18:16:22,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:16:22,217 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906161860] [2021-02-19 18:16:22,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:16:22,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:22,284 WARN L141 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-02-19 18:16:22,285 WARN L147 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size 4 [2021-02-19 18:16:22,288 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:22,288 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:16:22,289 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:22,289 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:16:22,290 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:22,290 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:22,741 WARN L202 SmtUtils]: Spent 440.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2021-02-19 18:16:22,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 18:16:22,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:22,765 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:22,766 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:16:22,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 18:16:22,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:22,815 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:22,816 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:22,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 18:16:22,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:22,818 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:22,819 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:22,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-19 18:16:22,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:22,863 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:22,864 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:22,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-19 18:16:22,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:22,989 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:22,992 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:16:23,005 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:23,006 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:16:23,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-02-19 18:16:23,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:23,041 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:23,042 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:23,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-19 18:16:23,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:23,045 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:23,045 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:23,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-19 18:16:23,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:23,048 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:23,048 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:23,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-19 18:16:23,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:23,051 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:23,051 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:23,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-19 18:16:23,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:23,053 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:23,054 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:23,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-19 18:16:23,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:23,056 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:23,056 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:23,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-19 18:16:23,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:23,059 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:23,059 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:23,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-19 18:16:23,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:23,062 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:23,063 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:23,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-19 18:16:23,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:23,065 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:23,066 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:23,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-19 18:16:23,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:23,068 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:23,068 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:23,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-19 18:16:23,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:23,071 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:23,071 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:23,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-19 18:16:23,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:23,073 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:23,074 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:23,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-19 18:16:23,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:23,076 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:23,076 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:23,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-19 18:16:23,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:23,078 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:23,079 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:23,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-19 18:16:23,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:23,081 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:23,081 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:23,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-19 18:16:23,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:23,083 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:23,084 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:23,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-19 18:16:23,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:23,104 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:23,105 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:23,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-02-19 18:16:23,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:23,108 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:23,108 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:23,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:16:23,224 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906161860] [2021-02-19 18:16:23,224 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:16:23,225 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-19 18:16:23,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15461565] [2021-02-19 18:16:23,225 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-19 18:16:23,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:16:23,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-19 18:16:23,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-02-19 18:16:23,226 INFO L87 Difference]: Start difference. First operand 1055 states and 1562 transitions. Second operand 10 states. [2021-02-19 18:16:23,675 WARN L202 SmtUtils]: Spent 400.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2021-02-19 18:16:23,878 WARN L202 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2021-02-19 18:16:24,145 WARN L202 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2021-02-19 18:16:24,483 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-02-19 18:16:33,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:16:33,716 INFO L93 Difference]: Finished difference Result 2724 states and 4188 transitions. [2021-02-19 18:16:33,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 18:16:33,717 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 254 [2021-02-19 18:16:33,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:16:33,727 INFO L225 Difference]: With dead ends: 2724 [2021-02-19 18:16:33,728 INFO L226 Difference]: Without dead ends: 1703 [2021-02-19 18:16:33,732 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2021-02-19 18:16:33,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1703 states. [2021-02-19 18:16:33,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1703 to 1055. [2021-02-19 18:16:33,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1055 states. [2021-02-19 18:16:34,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1055 states to 1055 states and 1554 transitions. [2021-02-19 18:16:34,000 INFO L78 Accepts]: Start accepts. Automaton has 1055 states and 1554 transitions. Word has length 254 [2021-02-19 18:16:34,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:16:34,004 INFO L480 AbstractCegarLoop]: Abstraction has 1055 states and 1554 transitions. [2021-02-19 18:16:34,005 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-19 18:16:34,005 INFO L276 IsEmpty]: Start isEmpty. Operand 1055 states and 1554 transitions. [2021-02-19 18:16:34,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-02-19 18:16:34,007 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 18:16:34,008 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] [2021-02-19 18:16:34,008 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-19 18:16:34,008 INFO L428 AbstractCegarLoop]: === Iteration 7 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 18:16:34,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:16:34,009 INFO L82 PathProgramCache]: Analyzing trace with hash 77890284, now seen corresponding path program 1 times [2021-02-19 18:16:34,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:16:34,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519106763] [2021-02-19 18:16:34,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:16:34,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:34,104 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:34,105 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:16:34,108 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:34,109 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:16:34,113 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:34,115 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:16:34,116 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:34,116 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:34,531 WARN L202 SmtUtils]: Spent 404.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2021-02-19 18:16:34,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 18:16:34,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:34,557 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:34,558 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:16:34,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 18:16:34,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:34,614 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:34,619 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:34,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 18:16:34,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:34,625 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:34,625 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:34,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-19 18:16:34,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:34,668 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:34,669 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:34,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-19 18:16:34,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:34,764 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:34,764 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-19 18:16:34,779 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:34,779 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-19 18:16:34,792 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:34,793 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:16:34,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-02-19 18:16:34,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:34,826 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:34,826 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:34,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-19 18:16:34,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:34,829 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:34,829 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:34,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-19 18:16:34,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:34,831 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:34,832 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:34,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-19 18:16:34,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:34,834 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:34,834 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:34,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-19 18:16:34,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:34,837 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:34,837 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:34,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-19 18:16:34,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:34,839 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:34,839 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:34,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-19 18:16:34,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:34,842 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:34,842 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:34,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-19 18:16:34,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:34,844 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:34,844 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:34,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-19 18:16:34,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:34,846 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:34,847 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:34,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-19 18:16:34,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:34,849 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:34,849 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:34,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-19 18:16:34,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:34,851 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:34,852 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:34,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-19 18:16:34,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:34,854 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:34,854 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:34,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-19 18:16:34,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:34,857 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:34,857 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:34,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-19 18:16:34,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:34,859 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:34,859 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:34,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-19 18:16:34,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:34,862 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:34,862 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:34,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-19 18:16:34,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:34,864 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:34,865 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:34,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-19 18:16:34,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:34,883 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:34,884 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:34,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-02-19 18:16:34,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:34,887 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:34,887 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:34,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:16:34,957 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519106763] [2021-02-19 18:16:34,957 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:16:34,957 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-19 18:16:34,957 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705136044] [2021-02-19 18:16:34,958 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-19 18:16:34,958 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:16:34,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-19 18:16:34,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-02-19 18:16:34,958 INFO L87 Difference]: Start difference. First operand 1055 states and 1554 transitions. Second operand 10 states. [2021-02-19 18:16:35,498 WARN L202 SmtUtils]: Spent 500.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2021-02-19 18:16:35,697 WARN L202 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2021-02-19 18:16:35,974 WARN L202 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2021-02-19 18:16:36,275 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-02-19 18:16:37,292 WARN L202 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 258 DAG size of output: 257 [2021-02-19 18:16:37,420 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-02-19 18:16:38,283 WARN L202 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 137 [2021-02-19 18:16:41,442 WARN L202 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-02-19 18:16:42,050 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-19 18:16:43,922 WARN L202 SmtUtils]: Spent 975.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 256 [2021-02-19 18:16:54,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:16:54,797 INFO L93 Difference]: Finished difference Result 4576 states and 7104 transitions. [2021-02-19 18:16:54,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-02-19 18:16:54,797 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 254 [2021-02-19 18:16:54,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:16:54,816 INFO L225 Difference]: With dead ends: 4576 [2021-02-19 18:16:54,816 INFO L226 Difference]: Without dead ends: 3555 [2021-02-19 18:16:54,821 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=166, Invalid=434, Unknown=0, NotChecked=0, Total=600 [2021-02-19 18:16:54,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3555 states. [2021-02-19 18:16:55,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3555 to 2221. [2021-02-19 18:16:55,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2221 states. [2021-02-19 18:16:55,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2221 states to 2221 states and 3351 transitions. [2021-02-19 18:16:55,468 INFO L78 Accepts]: Start accepts. Automaton has 2221 states and 3351 transitions. Word has length 254 [2021-02-19 18:16:55,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:16:55,468 INFO L480 AbstractCegarLoop]: Abstraction has 2221 states and 3351 transitions. [2021-02-19 18:16:55,468 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-19 18:16:55,468 INFO L276 IsEmpty]: Start isEmpty. Operand 2221 states and 3351 transitions. [2021-02-19 18:16:55,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-02-19 18:16:55,472 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 18:16:55,472 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] [2021-02-19 18:16:55,473 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-19 18:16:55,473 INFO L428 AbstractCegarLoop]: === Iteration 8 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 18:16:55,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:16:55,474 INFO L82 PathProgramCache]: Analyzing trace with hash 76055918, now seen corresponding path program 1 times [2021-02-19 18:16:55,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:16:55,474 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175571300] [2021-02-19 18:16:55,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:16:55,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:55,577 WARN L141 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-02-19 18:16:55,577 WARN L147 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size 4 [2021-02-19 18:16:55,584 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:55,584 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:16:55,585 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:55,585 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:16:55,586 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:55,586 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:56,071 WARN L202 SmtUtils]: Spent 474.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2021-02-19 18:16:56,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 18:16:56,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:56,090 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:56,091 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:16:56,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 18:16:56,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:56,138 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:56,138 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:56,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 18:16:56,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:56,141 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:56,141 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:56,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-19 18:16:56,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:56,186 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:56,186 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:56,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-19 18:16:56,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:56,282 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:56,282 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:16:56,295 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:56,296 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:16:56,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-02-19 18:16:56,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:56,326 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:56,327 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:56,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-19 18:16:56,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:56,329 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:56,329 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:56,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-19 18:16:56,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:56,331 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:56,332 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:56,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-19 18:16:56,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:56,334 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:56,334 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:56,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-19 18:16:56,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:56,336 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:56,337 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:56,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-19 18:16:56,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:56,339 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:56,339 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:56,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-19 18:16:56,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:56,341 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:56,342 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:56,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-19 18:16:56,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:56,344 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:56,344 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:56,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-19 18:16:56,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:56,346 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:56,347 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:56,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-19 18:16:56,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:56,349 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:56,349 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:56,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-19 18:16:56,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:56,352 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:56,352 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:56,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-19 18:16:56,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:56,354 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:56,354 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:56,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-19 18:16:56,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:56,357 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:56,357 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:56,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-19 18:16:56,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:56,359 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:56,359 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:56,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-19 18:16:56,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:56,362 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:56,362 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:56,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-19 18:16:56,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:56,364 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:56,364 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:56,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-19 18:16:56,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:56,384 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:56,385 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:56,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-02-19 18:16:56,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:16:56,388 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:16:56,388 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:16:56,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:16:56,554 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175571300] [2021-02-19 18:16:56,554 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:16:56,554 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-19 18:16:56,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654318019] [2021-02-19 18:16:56,555 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-19 18:16:56,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:16:56,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-19 18:16:56,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-02-19 18:16:56,556 INFO L87 Difference]: Start difference. First operand 2221 states and 3351 transitions. Second operand 10 states. [2021-02-19 18:16:57,140 WARN L202 SmtUtils]: Spent 529.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2021-02-19 18:16:57,334 WARN L202 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2021-02-19 18:16:57,600 WARN L202 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2021-02-19 18:16:57,934 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-02-19 18:17:07,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:17:07,560 INFO L93 Difference]: Finished difference Result 5684 states and 8839 transitions. [2021-02-19 18:17:07,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 18:17:07,561 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 254 [2021-02-19 18:17:07,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:17:07,582 INFO L225 Difference]: With dead ends: 5684 [2021-02-19 18:17:07,582 INFO L226 Difference]: Without dead ends: 3497 [2021-02-19 18:17:07,591 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2021-02-19 18:17:07,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3497 states. [2021-02-19 18:17:08,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3497 to 2221. [2021-02-19 18:17:08,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2221 states. [2021-02-19 18:17:08,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2221 states to 2221 states and 3329 transitions. [2021-02-19 18:17:08,130 INFO L78 Accepts]: Start accepts. Automaton has 2221 states and 3329 transitions. Word has length 254 [2021-02-19 18:17:08,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:17:08,131 INFO L480 AbstractCegarLoop]: Abstraction has 2221 states and 3329 transitions. [2021-02-19 18:17:08,131 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-19 18:17:08,131 INFO L276 IsEmpty]: Start isEmpty. Operand 2221 states and 3329 transitions. [2021-02-19 18:17:08,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-02-19 18:17:08,133 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 18:17:08,134 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] [2021-02-19 18:17:08,134 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-19 18:17:08,134 INFO L428 AbstractCegarLoop]: === Iteration 9 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 18:17:08,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:17:08,134 INFO L82 PathProgramCache]: Analyzing trace with hash -1791227858, now seen corresponding path program 1 times [2021-02-19 18:17:08,135 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:17:08,135 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034798680] [2021-02-19 18:17:08,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:17:08,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:08,196 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:08,197 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:17:08,199 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:08,201 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:17:08,205 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:08,205 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:17:08,205 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:08,206 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:08,639 WARN L202 SmtUtils]: Spent 423.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2021-02-19 18:17:08,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 18:17:08,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:08,659 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:08,660 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:17:08,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 18:17:08,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:08,699 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:08,699 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:08,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 18:17:08,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:08,701 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:08,702 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:08,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-19 18:17:08,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:08,745 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:08,745 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:08,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-19 18:17:08,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:08,842 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:08,843 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-19 18:17:08,860 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:08,861 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-19 18:17:08,877 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:08,878 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:17:08,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-02-19 18:17:08,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:08,917 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:08,917 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:08,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-19 18:17:08,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:08,920 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:08,920 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:08,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-19 18:17:08,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:08,922 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:08,923 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:08,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-19 18:17:08,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:08,925 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:08,925 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:08,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-19 18:17:08,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:08,928 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:08,928 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:08,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-19 18:17:08,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:08,931 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:08,931 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:08,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-19 18:17:08,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:08,934 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:08,934 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:08,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-19 18:17:08,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:08,937 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:08,937 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:08,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-19 18:17:08,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:08,940 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:08,940 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:08,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-19 18:17:08,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:08,943 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:08,943 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:08,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-19 18:17:08,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:08,945 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:08,946 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:08,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-19 18:17:08,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:08,948 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:08,948 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:08,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-19 18:17:08,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:08,951 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:08,951 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:08,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-19 18:17:08,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:08,953 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:08,953 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:08,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-19 18:17:08,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:08,955 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:08,956 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:08,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-19 18:17:08,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:08,958 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:08,959 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:08,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-19 18:17:08,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:08,984 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:08,984 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:08,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-02-19 18:17:08,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:08,987 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:08,988 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:09,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:17:09,091 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034798680] [2021-02-19 18:17:09,091 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:17:09,092 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-19 18:17:09,092 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854138275] [2021-02-19 18:17:09,092 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-19 18:17:09,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:17:09,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-19 18:17:09,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-02-19 18:17:09,093 INFO L87 Difference]: Start difference. First operand 2221 states and 3329 transitions. Second operand 10 states. [2021-02-19 18:17:09,722 WARN L202 SmtUtils]: Spent 534.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2021-02-19 18:17:09,948 WARN L202 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2021-02-19 18:17:10,224 WARN L202 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2021-02-19 18:17:10,571 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-02-19 18:17:11,085 WARN L202 SmtUtils]: Spent 499.00 ms on a formula simplification that was a NOOP. DAG size: 257 [2021-02-19 18:17:11,215 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-02-19 18:17:12,023 WARN L202 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2021-02-19 18:17:15,623 WARN L202 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-02-19 18:17:17,876 WARN L202 SmtUtils]: Spent 491.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2021-02-19 18:17:18,000 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-02-19 18:17:31,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:17:31,839 INFO L93 Difference]: Finished difference Result 9636 states and 15121 transitions. [2021-02-19 18:17:31,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-02-19 18:17:31,841 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 254 [2021-02-19 18:17:31,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:17:31,882 INFO L225 Difference]: With dead ends: 9636 [2021-02-19 18:17:31,882 INFO L226 Difference]: Without dead ends: 7449 [2021-02-19 18:17:31,892 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 [2021-02-19 18:17:31,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7449 states. [2021-02-19 18:17:33,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7449 to 4817. [2021-02-19 18:17:33,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4817 states. [2021-02-19 18:17:33,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4817 states to 4817 states and 7439 transitions. [2021-02-19 18:17:33,258 INFO L78 Accepts]: Start accepts. Automaton has 4817 states and 7439 transitions. Word has length 254 [2021-02-19 18:17:33,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:17:33,259 INFO L480 AbstractCegarLoop]: Abstraction has 4817 states and 7439 transitions. [2021-02-19 18:17:33,259 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-19 18:17:33,259 INFO L276 IsEmpty]: Start isEmpty. Operand 4817 states and 7439 transitions. [2021-02-19 18:17:33,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-02-19 18:17:33,262 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 18:17:33,262 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] [2021-02-19 18:17:33,263 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-19 18:17:33,263 INFO L428 AbstractCegarLoop]: === Iteration 10 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 18:17:33,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:17:33,263 INFO L82 PathProgramCache]: Analyzing trace with hash -1545419984, now seen corresponding path program 1 times [2021-02-19 18:17:33,264 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:17:33,264 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945868834] [2021-02-19 18:17:33,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:17:33,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:33,329 WARN L141 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-02-19 18:17:33,330 WARN L147 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size 4 [2021-02-19 18:17:33,333 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:33,333 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:17:33,334 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:33,335 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:17:33,336 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:33,336 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:33,820 WARN L202 SmtUtils]: Spent 473.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2021-02-19 18:17:33,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 18:17:33,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:33,844 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:33,845 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:17:33,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 18:17:33,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:33,895 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:33,896 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:33,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 18:17:33,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:33,898 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:33,899 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:33,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-19 18:17:33,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:33,946 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:33,947 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:34,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-19 18:17:34,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:34,047 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:34,048 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:17:34,061 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:34,061 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:17:34,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-02-19 18:17:34,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:34,091 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:34,091 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:34,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-19 18:17:34,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:34,094 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:34,094 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:34,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-19 18:17:34,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:34,096 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:34,097 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:34,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-19 18:17:34,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:34,099 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:34,099 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:34,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-19 18:17:34,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:34,101 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:34,102 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:34,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-19 18:17:34,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:34,104 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:34,104 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:34,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-19 18:17:34,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:34,106 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:34,107 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:34,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-19 18:17:34,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:34,109 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:34,109 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:34,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-19 18:17:34,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:34,111 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:34,112 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:34,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-19 18:17:34,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:34,114 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:34,115 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:34,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-19 18:17:34,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:34,117 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:34,117 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:34,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-19 18:17:34,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:34,119 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:34,120 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:34,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-19 18:17:34,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:34,122 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:34,123 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:34,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-19 18:17:34,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:34,125 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:34,126 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:34,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-19 18:17:34,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:34,128 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:34,128 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:34,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-19 18:17:34,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:34,131 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:34,131 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:34,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-19 18:17:34,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:34,149 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:34,149 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:34,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-02-19 18:17:34,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:34,152 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:34,153 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:34,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:17:34,270 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945868834] [2021-02-19 18:17:34,270 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:17:34,270 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-19 18:17:34,271 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199746331] [2021-02-19 18:17:34,271 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-19 18:17:34,272 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:17:34,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-19 18:17:34,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-02-19 18:17:34,272 INFO L87 Difference]: Start difference. First operand 4817 states and 7439 transitions. Second operand 10 states. [2021-02-19 18:17:34,876 WARN L202 SmtUtils]: Spent 566.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2021-02-19 18:17:35,103 WARN L202 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2021-02-19 18:17:35,387 WARN L202 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2021-02-19 18:17:35,727 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-02-19 18:17:45,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:17:45,979 INFO L93 Difference]: Finished difference Result 12132 states and 19195 transitions. [2021-02-19 18:17:45,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 18:17:45,980 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 254 [2021-02-19 18:17:45,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:17:46,013 INFO L225 Difference]: With dead ends: 12132 [2021-02-19 18:17:46,013 INFO L226 Difference]: Without dead ends: 7349 [2021-02-19 18:17:46,034 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2021-02-19 18:17:46,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7349 states. [2021-02-19 18:17:46,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7349 to 4817. [2021-02-19 18:17:46,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4817 states. [2021-02-19 18:17:47,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4817 states to 4817 states and 7377 transitions. [2021-02-19 18:17:47,004 INFO L78 Accepts]: Start accepts. Automaton has 4817 states and 7377 transitions. Word has length 254 [2021-02-19 18:17:47,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:17:47,004 INFO L480 AbstractCegarLoop]: Abstraction has 4817 states and 7377 transitions. [2021-02-19 18:17:47,004 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-19 18:17:47,004 INFO L276 IsEmpty]: Start isEmpty. Operand 4817 states and 7377 transitions. [2021-02-19 18:17:47,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-02-19 18:17:47,008 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 18:17:47,008 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] [2021-02-19 18:17:47,008 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-19 18:17:47,008 INFO L428 AbstractCegarLoop]: === Iteration 11 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 18:17:47,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:17:47,009 INFO L82 PathProgramCache]: Analyzing trace with hash 1507604592, now seen corresponding path program 1 times [2021-02-19 18:17:47,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:17:47,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255598093] [2021-02-19 18:17:47,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:17:47,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:47,067 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:47,067 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:17:47,070 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:47,070 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:17:47,071 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:47,071 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:17:47,072 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:47,072 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:47,548 WARN L202 SmtUtils]: Spent 464.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2021-02-19 18:17:47,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 18:17:47,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:47,563 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:47,564 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:17:47,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 18:17:47,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:47,601 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:47,604 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:47,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 18:17:47,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:47,612 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:47,614 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:47,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-19 18:17:47,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:47,667 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:47,667 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:47,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-19 18:17:47,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:47,762 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:47,762 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-19 18:17:47,778 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:47,778 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-19 18:17:47,792 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:47,792 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:17:47,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-02-19 18:17:47,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:47,824 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:47,824 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:47,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-19 18:17:47,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:47,826 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:47,827 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:47,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-19 18:17:47,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:47,829 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:47,829 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:47,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-19 18:17:47,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:47,832 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:47,832 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:47,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-19 18:17:47,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:47,834 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:47,834 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:47,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-19 18:17:47,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:47,836 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:47,837 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:47,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-19 18:17:47,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:47,839 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:47,839 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:47,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-19 18:17:47,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:47,841 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:47,842 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:47,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-19 18:17:47,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:47,844 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:47,844 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:47,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-19 18:17:47,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:47,847 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:47,847 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:47,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-19 18:17:47,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:47,849 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:47,849 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:47,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-19 18:17:47,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:47,851 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:47,851 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:47,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-19 18:17:47,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:47,853 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:47,854 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:47,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-19 18:17:47,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:47,859 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:47,859 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:47,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-19 18:17:47,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:47,861 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:47,862 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:47,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-19 18:17:47,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:47,864 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:47,865 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:47,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-19 18:17:47,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:47,882 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:47,882 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:47,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-02-19 18:17:47,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:17:47,886 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:17:47,886 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:17:47,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:17:47,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255598093] [2021-02-19 18:17:47,980 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:17:47,980 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-19 18:17:47,980 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41614232] [2021-02-19 18:17:47,981 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-19 18:17:47,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:17:47,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-19 18:17:47,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-02-19 18:17:47,982 INFO L87 Difference]: Start difference. First operand 4817 states and 7377 transitions. Second operand 10 states. [2021-02-19 18:17:48,501 WARN L202 SmtUtils]: Spent 475.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2021-02-19 18:17:48,696 WARN L202 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2021-02-19 18:17:48,957 WARN L202 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2021-02-19 18:17:49,312 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-02-19 18:17:50,409 WARN L202 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 258 DAG size of output: 257 [2021-02-19 18:17:50,556 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-02-19 18:17:51,569 WARN L202 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 137 [2021-02-19 18:17:55,028 WARN L202 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-02-19 18:17:57,998 WARN L202 SmtUtils]: Spent 954.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 256 [2021-02-19 18:17:58,125 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-02-19 18:18:12,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:18:12,765 INFO L93 Difference]: Finished difference Result 20670 states and 32925 transitions. [2021-02-19 18:18:12,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-02-19 18:18:12,766 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 254 [2021-02-19 18:18:12,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:18:12,828 INFO L225 Difference]: With dead ends: 20670 [2021-02-19 18:18:12,829 INFO L226 Difference]: Without dead ends: 15887 [2021-02-19 18:18:12,849 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=166, Invalid=434, Unknown=0, NotChecked=0, Total=600 [2021-02-19 18:18:12,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15887 states. [2021-02-19 18:18:15,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15887 to 10675. [2021-02-19 18:18:15,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10675 states. [2021-02-19 18:18:15,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10675 states to 10675 states and 16947 transitions. [2021-02-19 18:18:15,116 INFO L78 Accepts]: Start accepts. Automaton has 10675 states and 16947 transitions. Word has length 254 [2021-02-19 18:18:15,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:18:15,116 INFO L480 AbstractCegarLoop]: Abstraction has 10675 states and 16947 transitions. [2021-02-19 18:18:15,116 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-19 18:18:15,116 INFO L276 IsEmpty]: Start isEmpty. Operand 10675 states and 16947 transitions. [2021-02-19 18:18:15,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-02-19 18:18:15,120 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 18:18:15,121 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] [2021-02-19 18:18:15,121 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-02-19 18:18:15,121 INFO L428 AbstractCegarLoop]: === Iteration 12 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 18:18:15,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:18:15,122 INFO L82 PathProgramCache]: Analyzing trace with hash -566416210, now seen corresponding path program 1 times [2021-02-19 18:18:15,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:18:15,122 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961478060] [2021-02-19 18:18:15,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:18:15,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:15,185 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:15,185 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:18:15,188 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:15,189 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:18:15,189 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:15,189 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:18:15,190 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:15,190 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:15,676 WARN L202 SmtUtils]: Spent 476.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2021-02-19 18:18:15,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 18:18:15,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:15,701 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:15,702 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:18:15,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 18:18:15,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:15,745 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:15,746 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:15,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 18:18:15,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:15,748 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:15,748 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:15,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-19 18:18:15,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:15,793 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:15,793 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:15,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-19 18:18:15,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:15,886 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:15,886 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-19 18:18:15,901 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:15,902 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-19 18:18:15,914 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:15,915 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:18:15,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-02-19 18:18:15,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:15,944 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:15,945 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:15,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-19 18:18:15,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:15,947 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:15,947 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:15,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-19 18:18:15,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:15,949 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:15,949 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:15,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-19 18:18:15,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:15,951 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:15,951 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:15,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-19 18:18:15,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:15,953 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:15,953 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:15,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-19 18:18:15,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:15,955 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:15,955 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:15,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-19 18:18:15,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:15,957 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:15,957 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:15,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-19 18:18:15,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:15,959 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:15,959 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:15,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-19 18:18:15,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:15,961 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:15,961 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:15,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-19 18:18:15,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:15,963 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:15,963 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:15,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-19 18:18:15,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:15,965 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:15,965 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:15,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-19 18:18:15,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:15,967 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:15,968 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:15,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-19 18:18:15,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:15,969 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:15,969 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:15,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-19 18:18:15,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:15,971 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:15,971 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:15,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-19 18:18:15,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:15,973 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:15,973 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:15,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-19 18:18:15,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:15,975 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:15,976 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:15,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-19 18:18:15,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:15,992 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:15,992 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:15,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-02-19 18:18:15,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:15,995 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:15,996 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:16,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:18:16,119 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961478060] [2021-02-19 18:18:16,119 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:18:16,120 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-19 18:18:16,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394260674] [2021-02-19 18:18:16,120 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-19 18:18:16,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:18:16,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-19 18:18:16,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-02-19 18:18:16,121 INFO L87 Difference]: Start difference. First operand 10675 states and 16947 transitions. Second operand 10 states. [2021-02-19 18:18:16,631 WARN L202 SmtUtils]: Spent 465.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2021-02-19 18:18:16,835 WARN L202 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2021-02-19 18:18:17,094 WARN L202 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2021-02-19 18:18:17,437 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-02-19 18:18:18,402 WARN L202 SmtUtils]: Spent 949.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 257 [2021-02-19 18:18:18,526 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-02-19 18:18:19,435 WARN L202 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 137 [2021-02-19 18:18:22,874 WARN L202 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-02-19 18:18:26,072 WARN L202 SmtUtils]: Spent 925.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 256 [2021-02-19 18:18:26,256 WARN L202 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-02-19 18:18:41,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:18:41,949 INFO L93 Difference]: Finished difference Result 45410 states and 74619 transitions. [2021-02-19 18:18:41,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-02-19 18:18:41,950 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 254 [2021-02-19 18:18:41,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:18:42,080 INFO L225 Difference]: With dead ends: 45410 [2021-02-19 18:18:42,080 INFO L226 Difference]: Without dead ends: 34769 [2021-02-19 18:18:42,125 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=166, Invalid=434, Unknown=0, NotChecked=0, Total=600 [2021-02-19 18:18:42,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34769 states. [2021-02-19 18:18:46,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34769 to 24389. [2021-02-19 18:18:46,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24389 states. [2021-02-19 18:18:46,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24389 states to 24389 states and 40519 transitions. [2021-02-19 18:18:46,495 INFO L78 Accepts]: Start accepts. Automaton has 24389 states and 40519 transitions. Word has length 254 [2021-02-19 18:18:46,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:18:46,495 INFO L480 AbstractCegarLoop]: Abstraction has 24389 states and 40519 transitions. [2021-02-19 18:18:46,495 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-19 18:18:46,495 INFO L276 IsEmpty]: Start isEmpty. Operand 24389 states and 40519 transitions. [2021-02-19 18:18:46,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-02-19 18:18:46,503 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 18:18:46,503 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] [2021-02-19 18:18:46,503 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-02-19 18:18:46,504 INFO L428 AbstractCegarLoop]: === Iteration 13 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 18:18:46,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:18:46,504 INFO L82 PathProgramCache]: Analyzing trace with hash -1880246096, now seen corresponding path program 1 times [2021-02-19 18:18:46,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:18:46,504 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005942519] [2021-02-19 18:18:46,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:18:46,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:46,573 WARN L141 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-02-19 18:18:46,573 WARN L147 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size 4 [2021-02-19 18:18:46,576 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:46,576 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:18:46,576 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:46,577 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:18:46,577 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:46,578 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:47,015 WARN L202 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2021-02-19 18:18:47,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 18:18:47,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:47,038 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:47,039 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:18:47,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 18:18:47,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:47,095 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:47,096 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:47,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 18:18:47,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:47,099 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:47,100 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:47,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-19 18:18:47,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:47,151 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:47,151 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:47,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-19 18:18:47,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:47,251 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:47,252 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:18:47,265 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:47,265 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:18:47,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-02-19 18:18:47,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:47,295 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:47,296 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:47,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-19 18:18:47,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:47,298 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:47,299 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:47,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-19 18:18:47,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:47,301 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:47,301 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:47,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-19 18:18:47,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:47,303 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:47,303 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:47,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-19 18:18:47,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:47,305 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:47,306 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:47,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-19 18:18:47,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:47,307 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:47,308 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:47,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-19 18:18:47,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:47,310 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:47,310 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:47,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-19 18:18:47,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:47,314 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:47,314 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:47,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-19 18:18:47,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:47,316 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:47,317 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:47,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-19 18:18:47,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:47,319 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:47,319 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:47,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-19 18:18:47,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:47,321 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:47,322 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:47,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-19 18:18:47,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:47,323 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:47,324 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:47,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-19 18:18:47,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:47,326 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:47,327 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:47,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-19 18:18:47,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:47,329 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:47,330 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:47,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-19 18:18:47,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:47,332 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:47,332 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:47,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-19 18:18:47,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:47,334 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:47,335 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:47,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-19 18:18:47,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:47,355 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:47,356 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:47,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-02-19 18:18:47,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:18:47,359 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:18:47,359 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:18:47,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:18:47,441 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005942519] [2021-02-19 18:18:47,441 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:18:47,441 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-19 18:18:47,441 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399875337] [2021-02-19 18:18:47,442 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-19 18:18:47,442 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:18:47,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-19 18:18:47,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-02-19 18:18:47,442 INFO L87 Difference]: Start difference. First operand 24389 states and 40519 transitions. Second operand 10 states. [2021-02-19 18:18:48,074 WARN L202 SmtUtils]: Spent 597.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2021-02-19 18:18:48,265 WARN L202 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2021-02-19 18:18:48,522 WARN L202 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2021-02-19 18:19:03,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:19:03,934 INFO L93 Difference]: Finished difference Result 58812 states and 99735 transitions. [2021-02-19 18:19:03,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 18:19:03,935 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 254 [2021-02-19 18:19:03,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:19:04,078 INFO L225 Difference]: With dead ends: 58812 [2021-02-19 18:19:04,078 INFO L226 Difference]: Without dead ends: 34457 [2021-02-19 18:19:04,168 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2021-02-19 18:19:04,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34457 states. [2021-02-19 18:19:08,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34457 to 24389. [2021-02-19 18:19:08,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24389 states. [2021-02-19 18:19:08,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24389 states to 24389 states and 40001 transitions. [2021-02-19 18:19:08,544 INFO L78 Accepts]: Start accepts. Automaton has 24389 states and 40001 transitions. Word has length 254 [2021-02-19 18:19:08,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:19:08,545 INFO L480 AbstractCegarLoop]: Abstraction has 24389 states and 40001 transitions. [2021-02-19 18:19:08,545 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-19 18:19:08,545 INFO L276 IsEmpty]: Start isEmpty. Operand 24389 states and 40001 transitions. [2021-02-19 18:19:08,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-02-19 18:19:08,552 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 18:19:08,552 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] [2021-02-19 18:19:08,552 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-02-19 18:19:08,553 INFO L428 AbstractCegarLoop]: === Iteration 14 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 18:19:08,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:19:08,553 INFO L82 PathProgramCache]: Analyzing trace with hash -2094380176, now seen corresponding path program 1 times [2021-02-19 18:19:08,553 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:19:08,553 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421810512] [2021-02-19 18:19:08,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:19:08,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:08,608 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:08,609 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:19:08,612 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:08,612 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:19:08,613 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:08,613 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:19:08,613 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:08,614 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:09,051 WARN L202 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2021-02-19 18:19:09,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 18:19:09,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:09,071 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:09,072 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:19:09,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 18:19:09,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:09,114 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:09,114 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:09,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 18:19:09,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:09,116 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:09,117 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:09,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-19 18:19:09,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:09,160 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:09,160 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:09,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-19 18:19:09,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:09,253 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:09,254 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-19 18:19:09,269 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:09,270 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-19 18:19:09,282 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:09,283 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:19:09,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-02-19 18:19:09,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:09,312 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:09,313 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:09,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-19 18:19:09,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:09,315 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:09,315 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:09,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-19 18:19:09,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:09,317 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:09,317 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:09,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-19 18:19:09,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:09,319 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:09,319 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:09,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-19 18:19:09,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:09,321 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:09,321 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:09,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-19 18:19:09,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:09,323 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:09,324 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:09,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-19 18:19:09,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:09,326 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:09,326 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:09,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-19 18:19:09,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:09,328 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:09,328 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:09,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-19 18:19:09,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:09,330 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:09,331 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:09,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-19 18:19:09,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:09,332 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:09,333 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:09,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-19 18:19:09,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:09,335 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:09,335 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:09,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-19 18:19:09,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:09,337 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:09,338 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:09,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-19 18:19:09,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:09,339 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:09,340 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:09,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-19 18:19:09,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:09,341 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:09,342 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:09,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-19 18:19:09,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:09,344 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:09,344 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:09,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-19 18:19:09,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:09,346 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:09,346 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:09,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-19 18:19:09,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:09,361 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:09,361 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:09,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-02-19 18:19:09,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:09,364 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:09,364 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:09,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:19:09,427 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421810512] [2021-02-19 18:19:09,427 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:19:09,427 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-19 18:19:09,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435547730] [2021-02-19 18:19:09,428 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-19 18:19:09,428 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:19:09,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-19 18:19:09,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-02-19 18:19:09,428 INFO L87 Difference]: Start difference. First operand 24389 states and 40001 transitions. Second operand 10 states. [2021-02-19 18:19:09,924 WARN L202 SmtUtils]: Spent 455.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2021-02-19 18:19:10,115 WARN L202 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2021-02-19 18:19:10,490 WARN L202 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2021-02-19 18:19:10,824 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-02-19 18:19:11,788 WARN L202 SmtUtils]: Spent 949.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 257 [2021-02-19 18:19:11,909 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-02-19 18:19:12,693 WARN L202 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 137 [2021-02-19 18:19:16,317 WARN L202 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-02-19 18:19:20,514 WARN L202 SmtUtils]: Spent 920.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 256 [2021-02-19 18:19:41,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:19:41,566 INFO L93 Difference]: Finished difference Result 102024 states and 173033 transitions. [2021-02-19 18:19:41,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-02-19 18:19:41,566 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 254 [2021-02-19 18:19:41,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:19:41,834 INFO L225 Difference]: With dead ends: 102024 [2021-02-19 18:19:41,835 INFO L226 Difference]: Without dead ends: 77669 [2021-02-19 18:19:41,938 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=166, Invalid=434, Unknown=0, NotChecked=0, Total=600 [2021-02-19 18:19:42,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77669 states. [2021-02-19 18:19:51,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77669 to 57001. [2021-02-19 18:19:51,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57001 states. [2021-02-19 18:19:51,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57001 states to 57001 states and 99079 transitions. [2021-02-19 18:19:51,437 INFO L78 Accepts]: Start accepts. Automaton has 57001 states and 99079 transitions. Word has length 254 [2021-02-19 18:19:51,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:19:51,437 INFO L480 AbstractCegarLoop]: Abstraction has 57001 states and 99079 transitions. [2021-02-19 18:19:51,437 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-19 18:19:51,437 INFO L276 IsEmpty]: Start isEmpty. Operand 57001 states and 99079 transitions. [2021-02-19 18:19:51,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-02-19 18:19:51,451 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 18:19:51,452 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] [2021-02-19 18:19:51,452 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-02-19 18:19:51,452 INFO L428 AbstractCegarLoop]: === Iteration 15 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 18:19:51,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:19:51,453 INFO L82 PathProgramCache]: Analyzing trace with hash 1479667698, now seen corresponding path program 1 times [2021-02-19 18:19:51,453 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:19:51,453 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391002535] [2021-02-19 18:19:51,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:19:51,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:51,737 WARN L202 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 3 [2021-02-19 18:19:51,742 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:51,743 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:19:51,745 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:51,746 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:19:51,746 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:51,747 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:19:51,747 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:51,747 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:52,202 WARN L202 SmtUtils]: Spent 444.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2021-02-19 18:19:52,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 18:19:52,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:52,217 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:52,217 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:19:52,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 18:19:52,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:52,267 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:52,269 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:52,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 18:19:52,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:52,271 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:52,272 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:52,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-19 18:19:52,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:52,314 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:52,315 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:52,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-19 18:19:52,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:52,415 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:52,415 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-19 18:19:52,499 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:52,499 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-19 18:19:52,514 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:52,514 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:19:52,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-02-19 18:19:52,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:52,545 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:52,546 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:52,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-19 18:19:52,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:52,548 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:52,548 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:52,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-19 18:19:52,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:52,550 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:52,552 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:52,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-19 18:19:52,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:52,554 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:52,555 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:52,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-19 18:19:52,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:52,557 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:52,558 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:52,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-19 18:19:52,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:52,560 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:52,560 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:52,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-19 18:19:52,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:52,568 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:52,571 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:52,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-19 18:19:52,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:52,575 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:52,575 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:52,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-19 18:19:52,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:52,578 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:52,578 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:52,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-19 18:19:52,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:52,586 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:52,587 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:52,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-19 18:19:52,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:52,593 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:52,594 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:52,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-19 18:19:52,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:52,598 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:52,601 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:52,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-19 18:19:52,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:52,605 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:52,606 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:52,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-19 18:19:52,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:52,610 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:52,613 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:52,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-19 18:19:52,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:52,616 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:52,618 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:52,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-19 18:19:52,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:52,623 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:52,624 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:52,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-19 18:19:52,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:52,643 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:52,643 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:52,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-02-19 18:19:52,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:19:52,646 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:19:52,646 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:19:52,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:19:52,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391002535] [2021-02-19 18:19:52,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:19:52,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-19 18:19:52,731 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960497718] [2021-02-19 18:19:52,731 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-19 18:19:52,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:19:52,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-19 18:19:52,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-02-19 18:19:52,732 INFO L87 Difference]: Start difference. First operand 57001 states and 99079 transitions. Second operand 10 states. [2021-02-19 18:19:53,302 WARN L202 SmtUtils]: Spent 529.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2021-02-19 18:19:53,494 WARN L202 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2021-02-19 18:19:53,764 WARN L202 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2021-02-19 18:19:54,059 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-02-19 18:19:55,069 WARN L202 SmtUtils]: Spent 997.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 257 [2021-02-19 18:19:55,191 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-02-19 18:19:55,957 WARN L202 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 137 [2021-02-19 18:19:59,810 WARN L202 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-02-19 18:20:01,545 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-19 18:20:06,002 WARN L202 SmtUtils]: Spent 966.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 256 [2021-02-19 18:20:06,124 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-02-19 18:20:38,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:20:38,983 INFO L93 Difference]: Finished difference Result 235502 states and 423499 transitions. [2021-02-19 18:20:38,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-02-19 18:20:38,983 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 254 [2021-02-19 18:20:38,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:20:39,937 INFO L225 Difference]: With dead ends: 235502 [2021-02-19 18:20:39,937 INFO L226 Difference]: Without dead ends: 178535 [2021-02-19 18:20:40,108 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=166, Invalid=434, Unknown=0, NotChecked=0, Total=600 [2021-02-19 18:20:40,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178535 states. [2021-02-19 18:20:58,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178535 to 137291. [2021-02-19 18:20:58,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137291 states. [2021-02-19 18:20:59,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137291 states to 137291 states and 256707 transitions. [2021-02-19 18:20:59,740 INFO L78 Accepts]: Start accepts. Automaton has 137291 states and 256707 transitions. Word has length 254 [2021-02-19 18:20:59,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:20:59,741 INFO L480 AbstractCegarLoop]: Abstraction has 137291 states and 256707 transitions. [2021-02-19 18:20:59,741 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-19 18:20:59,741 INFO L276 IsEmpty]: Start isEmpty. Operand 137291 states and 256707 transitions. [2021-02-19 18:21:00,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-02-19 18:21:00,104 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 18:21:00,110 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] [2021-02-19 18:21:00,110 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-02-19 18:21:00,111 INFO L428 AbstractCegarLoop]: === Iteration 16 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 18:21:00,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:21:00,112 INFO L82 PathProgramCache]: Analyzing trace with hash 625128240, now seen corresponding path program 1 times [2021-02-19 18:21:00,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:21:00,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420399739] [2021-02-19 18:21:00,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:21:00,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:21:00,185 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:21:00,185 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:21:00,188 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:21:00,188 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:21:00,189 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:21:00,189 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:21:00,189 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:21:00,190 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:21:00,600 WARN L202 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2021-02-19 18:21:00,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 18:21:00,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:21:00,615 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:21:00,616 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:21:00,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 18:21:00,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:21:00,661 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:21:00,661 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:21:00,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 18:21:00,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:21:00,663 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:21:00,663 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:21:00,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-19 18:21:00,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:21:00,720 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:21:00,721 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:21:00,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-19 18:21:00,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:21:00,827 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:21:00,828 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-19 18:21:00,842 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:21:00,842 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-19 18:21:00,857 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:21:00,858 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:21:00,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-02-19 18:21:00,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:21:00,886 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:21:00,886 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:21:00,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-19 18:21:00,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:21:00,888 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:21:00,889 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:21:00,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-19 18:21:00,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:21:00,891 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:21:00,891 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:21:00,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-19 18:21:00,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:21:00,893 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:21:00,894 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:21:00,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-02-19 18:21:00,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:21:00,897 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:21:00,897 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:21:00,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-19 18:21:00,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:21:00,899 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:21:00,899 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:21:00,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-19 18:21:00,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:21:00,900 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:21:00,900 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:21:00,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-19 18:21:00,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:21:00,902 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:21:00,902 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:21:00,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-19 18:21:00,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:21:00,904 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:21:00,904 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:21:00,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-19 18:21:00,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:21:00,905 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:21:00,906 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:21:00,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-19 18:21:00,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:21:00,907 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:21:00,907 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:21:00,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-19 18:21:00,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:21:00,912 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:21:00,913 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:21:00,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-19 18:21:00,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:21:00,915 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:21:00,915 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:21:00,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-19 18:21:00,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:21:00,917 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:21:00,917 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:21:00,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-02-19 18:21:00,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:21:00,919 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:21:00,919 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:21:00,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-19 18:21:00,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:21:00,921 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:21:00,921 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:21:00,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-02-19 18:21:00,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:21:00,937 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:21:00,937 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:21:00,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-02-19 18:21:00,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:21:00,941 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:21:00,941 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:21:01,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:21:01,132 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420399739] [2021-02-19 18:21:01,133 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:21:01,133 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-19 18:21:01,133 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840136058] [2021-02-19 18:21:01,134 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-19 18:21:01,134 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:21:01,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-19 18:21:01,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-02-19 18:21:01,134 INFO L87 Difference]: Start difference. First operand 137291 states and 256707 transitions. Second operand 10 states. [2021-02-19 18:21:01,653 WARN L202 SmtUtils]: Spent 475.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2021-02-19 18:21:01,845 WARN L202 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2021-02-19 18:21:02,110 WARN L202 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2021-02-19 18:21:02,415 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-02-19 18:21:02,937 WARN L202 SmtUtils]: Spent 507.00 ms on a formula simplification that was a NOOP. DAG size: 257 [2021-02-19 18:21:03,064 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-02-19 18:21:03,763 WARN L202 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2021-02-19 18:21:08,840 WARN L202 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-02-19 18:21:18,524 WARN L202 SmtUtils]: Spent 479.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2021-02-19 18:22:20,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:22:20,681 INFO L93 Difference]: Finished difference Result 565119 states and 1101673 transitions. [2021-02-19 18:22:20,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-02-19 18:22:20,681 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 254 [2021-02-19 18:22:20,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:22:23,150 INFO L225 Difference]: With dead ends: 565119 [2021-02-19 18:22:23,150 INFO L226 Difference]: Without dead ends: 427862 [2021-02-19 18:22:23,746 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 [2021-02-19 18:22:23,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427862 states.