/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/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/systemc/transmitter.15.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-21 21:41:44,795 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-21 21:41:44,798 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-21 21:41:44,835 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-21 21:41:44,836 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-21 21:41:44,837 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-21 21:41:44,839 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-21 21:41:44,841 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-21 21:41:44,843 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-21 21:41:44,845 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-21 21:41:44,846 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-21 21:41:44,847 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-21 21:41:44,848 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-21 21:41:44,849 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-21 21:41:44,850 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-21 21:41:44,852 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-21 21:41:44,853 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-21 21:41:44,854 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-21 21:41:44,868 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-21 21:41:44,871 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-21 21:41:44,873 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-21 21:41:44,875 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-21 21:41:44,877 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-21 21:41:44,879 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-21 21:41:44,886 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-21 21:41:44,886 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-21 21:41:44,887 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-21 21:41:44,888 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-21 21:41:44,888 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-21 21:41:44,893 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-21 21:41:44,893 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-21 21:41:44,894 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-21 21:41:44,898 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-21 21:41:44,899 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-21 21:41:44,900 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-21 21:41:44,900 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-21 21:41:44,901 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-21 21:41:44,902 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-21 21:41:44,902 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-21 21:41:44,903 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-21 21:41:44,904 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-21 21:41:44,905 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-21 21:41:44,917 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-21 21:41:44,917 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-21 21:41:44,919 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-21 21:41:44,919 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-21 21:41:44,920 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-21 21:41:44,920 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-21 21:41:44,920 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-21 21:41:44,920 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-21 21:41:44,920 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-21 21:41:44,921 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-21 21:41:44,921 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-21 21:41:44,921 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-21 21:41:44,921 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-21 21:41:44,921 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-21 21:41:44,922 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-21 21:41:44,922 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-21 21:41:44,922 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-21 21:41:44,922 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-21 21:41:44,923 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 21:41:44,923 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-21 21:41:44,923 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-21 21:41:44,923 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-21 21:41:44,924 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-21 21:41:45,308 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-21 21:41:45,340 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-21 21:41:45,343 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-21 21:41:45,345 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-21 21:41:45,346 INFO L275 PluginConnector]: CDTParser initialized [2021-02-21 21:41:45,347 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.15.cil.c [2021-02-21 21:41:45,421 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13ca003bb/9aeeaf661dc847249b4c5d78beeebbe8/FLAG16635708d [2021-02-21 21:41:46,090 INFO L306 CDTParser]: Found 1 translation units. [2021-02-21 21:41:46,091 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/transmitter.15.cil.c [2021-02-21 21:41:46,111 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13ca003bb/9aeeaf661dc847249b4c5d78beeebbe8/FLAG16635708d [2021-02-21 21:41:46,384 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13ca003bb/9aeeaf661dc847249b4c5d78beeebbe8 [2021-02-21 21:41:46,389 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-21 21:41:46,408 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-21 21:41:46,415 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-21 21:41:46,416 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-21 21:41:46,421 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-21 21:41:46,422 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 09:41:46" (1/1) ... [2021-02-21 21:41:46,424 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60fa06fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:41:46, skipping insertion in model container [2021-02-21 21:41:46,424 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 09:41:46" (1/1) ... [2021-02-21 21:41:46,434 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-21 21:41:46,517 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-21 21:41:46,682 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.15.cil.c[401,414] [2021-02-21 21:41:46,893 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 21:41:46,915 INFO L203 MainTranslator]: Completed pre-run [2021-02-21 21:41:46,929 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.15.cil.c[401,414] [2021-02-21 21:41:47,009 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 21:41:47,085 INFO L208 MainTranslator]: Completed translation [2021-02-21 21:41:47,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:41:47 WrapperNode [2021-02-21 21:41:47,086 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-21 21:41:47,098 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-21 21:41:47,098 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-21 21:41:47,099 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-21 21:41:47,119 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:41:47" (1/1) ... [2021-02-21 21:41:47,119 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:41:47" (1/1) ... [2021-02-21 21:41:47,163 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:41:47" (1/1) ... [2021-02-21 21:41:47,164 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:41:47" (1/1) ... [2021-02-21 21:41:47,218 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:41:47" (1/1) ... [2021-02-21 21:41:47,260 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:41:47" (1/1) ... [2021-02-21 21:41:47,270 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:41:47" (1/1) ... [2021-02-21 21:41:47,284 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-21 21:41:47,289 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-21 21:41:47,289 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-21 21:41:47,289 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-21 21:41:47,293 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:41:47" (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 [2021-02-21 21:41:47,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-21 21:41:47,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-21 21:41:47,423 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-21 21:41:47,424 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2021-02-21 21:41:47,424 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2021-02-21 21:41:47,424 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2021-02-21 21:41:47,424 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2021-02-21 21:41:47,424 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit3 [2021-02-21 21:41:47,425 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit4 [2021-02-21 21:41:47,425 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit5 [2021-02-21 21:41:47,426 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit6 [2021-02-21 21:41:47,427 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit7 [2021-02-21 21:41:47,427 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit8 [2021-02-21 21:41:47,427 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit9 [2021-02-21 21:41:47,428 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit10 [2021-02-21 21:41:47,428 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit11 [2021-02-21 21:41:47,428 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit12 [2021-02-21 21:41:47,428 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit13 [2021-02-21 21:41:47,430 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2021-02-21 21:41:47,430 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2021-02-21 21:41:47,433 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2021-02-21 21:41:47,433 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit3_triggered [2021-02-21 21:41:47,434 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit4_triggered [2021-02-21 21:41:47,434 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit5_triggered [2021-02-21 21:41:47,434 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit6_triggered [2021-02-21 21:41:47,435 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit7_triggered [2021-02-21 21:41:47,435 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit8_triggered [2021-02-21 21:41:47,435 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit9_triggered [2021-02-21 21:41:47,435 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit10_triggered [2021-02-21 21:41:47,435 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit11_triggered [2021-02-21 21:41:47,436 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit12_triggered [2021-02-21 21:41:47,436 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit13_triggered [2021-02-21 21:41:47,436 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2021-02-21 21:41:47,436 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2021-02-21 21:41:47,437 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2021-02-21 21:41:47,437 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2021-02-21 21:41:47,437 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2021-02-21 21:41:47,437 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2021-02-21 21:41:47,437 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2021-02-21 21:41:47,438 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2021-02-21 21:41:47,438 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2021-02-21 21:41:47,438 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2021-02-21 21:41:47,438 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2021-02-21 21:41:47,438 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2021-02-21 21:41:47,439 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2021-02-21 21:41:47,439 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-21 21:41:47,439 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-21 21:41:47,439 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-21 21:41:47,439 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-21 21:41:47,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-21 21:41:47,440 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-21 21:41:47,440 INFO L130 BoogieDeclarations]: Found specification of procedure error [2021-02-21 21:41:47,440 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2021-02-21 21:41:47,440 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2021-02-21 21:41:47,440 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2021-02-21 21:41:47,441 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit3_triggered [2021-02-21 21:41:47,441 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit4_triggered [2021-02-21 21:41:47,441 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit5_triggered [2021-02-21 21:41:47,441 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit6_triggered [2021-02-21 21:41:47,441 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit7_triggered [2021-02-21 21:41:47,442 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit8_triggered [2021-02-21 21:41:47,442 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit9_triggered [2021-02-21 21:41:47,442 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit10_triggered [2021-02-21 21:41:47,442 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit11_triggered [2021-02-21 21:41:47,442 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit12_triggered [2021-02-21 21:41:47,442 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit13_triggered [2021-02-21 21:41:47,442 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2021-02-21 21:41:47,443 INFO L130 BoogieDeclarations]: Found specification of procedure master [2021-02-21 21:41:47,443 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2021-02-21 21:41:47,443 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2021-02-21 21:41:47,444 INFO L130 BoogieDeclarations]: Found specification of procedure transmit3 [2021-02-21 21:41:47,444 INFO L130 BoogieDeclarations]: Found specification of procedure transmit4 [2021-02-21 21:41:47,444 INFO L130 BoogieDeclarations]: Found specification of procedure transmit5 [2021-02-21 21:41:47,445 INFO L130 BoogieDeclarations]: Found specification of procedure transmit6 [2021-02-21 21:41:47,445 INFO L130 BoogieDeclarations]: Found specification of procedure transmit7 [2021-02-21 21:41:47,445 INFO L130 BoogieDeclarations]: Found specification of procedure transmit8 [2021-02-21 21:41:47,445 INFO L130 BoogieDeclarations]: Found specification of procedure transmit9 [2021-02-21 21:41:47,445 INFO L130 BoogieDeclarations]: Found specification of procedure transmit10 [2021-02-21 21:41:47,446 INFO L130 BoogieDeclarations]: Found specification of procedure transmit11 [2021-02-21 21:41:47,446 INFO L130 BoogieDeclarations]: Found specification of procedure transmit12 [2021-02-21 21:41:47,447 INFO L130 BoogieDeclarations]: Found specification of procedure transmit13 [2021-02-21 21:41:47,447 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2021-02-21 21:41:47,447 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2021-02-21 21:41:47,447 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2021-02-21 21:41:47,448 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2021-02-21 21:41:47,448 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2021-02-21 21:41:47,449 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2021-02-21 21:41:47,449 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2021-02-21 21:41:47,449 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2021-02-21 21:41:47,449 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2021-02-21 21:41:47,450 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2021-02-21 21:41:47,450 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2021-02-21 21:41:47,450 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2021-02-21 21:41:47,451 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-21 21:41:47,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-21 21:41:47,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-21 21:41:47,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-21 21:41:47,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-21 21:41:47,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-21 21:41:47,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-21 21:41:49,229 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-21 21:41:49,229 INFO L299 CfgBuilder]: Removed 17 assume(true) statements. [2021-02-21 21:41:49,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 09:41:49 BoogieIcfgContainer [2021-02-21 21:41:49,235 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-21 21:41:49,238 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-21 21:41:49,238 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-21 21:41:49,243 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-21 21:41:49,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 09:41:46" (1/3) ... [2021-02-21 21:41:49,244 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39009bea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 09:41:49, skipping insertion in model container [2021-02-21 21:41:49,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:41:47" (2/3) ... [2021-02-21 21:41:49,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39009bea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 09:41:49, skipping insertion in model container [2021-02-21 21:41:49,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 09:41:49" (3/3) ... [2021-02-21 21:41:49,247 INFO L111 eAbstractionObserver]: Analyzing ICFG transmitter.15.cil.c [2021-02-21 21:41:49,255 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-21 21:41:49,262 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-21 21:41:49,287 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-21 21:41:49,311 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-21 21:41:49,311 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-21 21:41:49,311 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-21 21:41:49,312 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-21 21:41:49,312 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-21 21:41:49,312 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-21 21:41:49,312 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-21 21:41:49,312 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-21 21:41:49,346 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states. [2021-02-21 21:41:49,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2021-02-21 21:41:49,378 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:41:49,380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 21:41:49,380 INFO L428 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:41:49,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:41:49,387 INFO L82 PathProgramCache]: Analyzing trace with hash 2085248471, now seen corresponding path program 1 times [2021-02-21 21:41:49,397 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:41:49,398 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1544040689] [2021-02-21 21:41:49,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:41:49,509 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:41:49,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:41:50,085 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:41:50,087 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:41:50,088 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:41:50,089 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:41:50,105 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:41:50,105 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:41:50,611 WARN L202 SmtUtils]: Spent 463.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-02-21 21:41:50,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:41:50,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:41:50,667 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:41:50,668 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:41:50,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-21 21:41:50,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:41:50,735 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:41:50,735 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:41:50,736 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:41:50,737 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 21:41:50,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-21 21:41:50,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:41:50,743 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:41:50,743 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:41:50,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-02-21 21:41:50,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:41:50,851 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:41:50,853 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:41:50,856 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:41:50,858 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-21 21:41:50,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-21 21:41:50,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:41:50,973 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:41:50,974 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:41:50,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-02-21 21:41:50,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:41:51,012 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:41:51,012 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:41:51,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-21 21:41:51,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:41:51,016 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:41:51,017 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:41:51,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-21 21:41:51,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:41:51,020 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:41:51,021 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:41:51,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-02-21 21:41:51,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:41:51,025 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:41:51,026 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:41:51,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-02-21 21:41:51,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:41:51,029 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:41:51,030 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:41:51,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-02-21 21:41:51,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:41:51,055 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:41:51,056 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:41:51,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-02-21 21:41:51,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:41:51,059 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:41:51,060 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:41:51,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-02-21 21:41:51,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:41:51,063 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:41:51,063 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:41:51,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 21:41:51,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:41:51,067 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:41:51,067 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:41:51,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-02-21 21:41:51,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:41:51,071 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:41:51,071 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:41:51,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-02-21 21:41:51,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:41:51,074 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:41:51,075 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:41:51,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-02-21 21:41:51,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:41:51,078 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:41:51,078 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:41:51,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-21 21:41:51,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:41:51,082 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:41:51,082 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:41:51,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-21 21:41:51,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:41:51,085 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:41:51,086 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:41:51,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-02-21 21:41:51,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:41:51,089 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:41:51,090 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:41:51,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2021-02-21 21:41:51,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:41:51,122 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:41:51,123 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:41:51,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2021-02-21 21:41:51,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:41:51,127 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:41:51,128 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:41:51,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 21:41:51,370 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1544040689] [2021-02-21 21:41:51,372 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 21:41:51,373 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-21 21:41:51,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252134023] [2021-02-21 21:41:51,380 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-21 21:41:51,380 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 21:41:51,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-21 21:41:51,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-02-21 21:41:51,397 INFO L87 Difference]: Start difference. First operand 882 states. Second operand 8 states. [2021-02-21 21:41:51,645 WARN L202 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2021-02-21 21:41:51,924 WARN L202 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2021-02-21 21:41:52,777 WARN L202 SmtUtils]: Spent 420.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2021-02-21 21:41:52,945 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2021-02-21 21:41:53,085 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-02-21 21:41:53,637 WARN L202 SmtUtils]: Spent 415.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2021-02-21 21:41:53,855 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-02-21 21:41:59,401 WARN L202 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-02-21 21:42:05,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 21:42:05,020 INFO L93 Difference]: Finished difference Result 2267 states and 3110 transitions. [2021-02-21 21:42:05,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-21 21:42:05,022 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 394 [2021-02-21 21:42:05,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 21:42:05,077 INFO L225 Difference]: With dead ends: 2267 [2021-02-21 21:42:05,077 INFO L226 Difference]: Without dead ends: 1482 [2021-02-21 21:42:05,095 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2021-02-21 21:42:05,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1482 states. [2021-02-21 21:42:05,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1482 to 870. [2021-02-21 21:42:05,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 870 states. [2021-02-21 21:42:05,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 870 states to 870 states and 1098 transitions. [2021-02-21 21:42:05,848 INFO L78 Accepts]: Start accepts. Automaton has 870 states and 1098 transitions. Word has length 394 [2021-02-21 21:42:05,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 21:42:05,852 INFO L480 AbstractCegarLoop]: Abstraction has 870 states and 1098 transitions. [2021-02-21 21:42:05,852 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-21 21:42:05,852 INFO L276 IsEmpty]: Start isEmpty. Operand 870 states and 1098 transitions. [2021-02-21 21:42:05,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2021-02-21 21:42:05,874 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:42:05,879 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 21:42:05,881 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-21 21:42:05,881 INFO L428 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:42:05,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:42:05,888 INFO L82 PathProgramCache]: Analyzing trace with hash 665851255, now seen corresponding path program 1 times [2021-02-21 21:42:05,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:42:05,892 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [412048048] [2021-02-21 21:42:05,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:42:05,903 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:42:05,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:06,038 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:06,039 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:06,041 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:06,041 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:42:06,045 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:06,046 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:06,475 WARN L202 SmtUtils]: Spent 418.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-02-21 21:42:06,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:42:06,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:06,537 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:06,538 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:06,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-21 21:42:06,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:06,600 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:06,601 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:06,602 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:06,603 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 21:42:06,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-21 21:42:06,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:06,608 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:06,609 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:06,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-02-21 21:42:06,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:06,705 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:06,706 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:06,707 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:06,708 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-21 21:42:06,874 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-02-21 21:42:06,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-21 21:42:06,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:06,895 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:06,896 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:06,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-02-21 21:42:06,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:06,968 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:06,969 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:06,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-21 21:42:06,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:06,974 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:06,975 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:06,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-21 21:42:06,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:06,981 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:06,983 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:06,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-02-21 21:42:06,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:06,988 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:06,989 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:06,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-02-21 21:42:06,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:06,993 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:06,995 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:06,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-02-21 21:42:06,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:07,000 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:07,001 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:07,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-02-21 21:42:07,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:07,005 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:07,006 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:07,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-02-21 21:42:07,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:07,017 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:07,019 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:07,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 21:42:07,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:07,027 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:07,029 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:07,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-02-21 21:42:07,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:07,035 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:07,036 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:07,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-02-21 21:42:07,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:07,041 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:07,045 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:07,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-02-21 21:42:07,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:07,050 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:07,051 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:07,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-21 21:42:07,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:07,056 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:07,057 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:07,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-21 21:42:07,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:07,070 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:07,071 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:07,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-02-21 21:42:07,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:07,075 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:07,076 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:07,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2021-02-21 21:42:07,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:07,175 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:07,176 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:07,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2021-02-21 21:42:07,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:07,182 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:07,183 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:07,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 21:42:07,636 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [412048048] [2021-02-21 21:42:07,636 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 21:42:07,641 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-21 21:42:07,642 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132146938] [2021-02-21 21:42:07,645 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-21 21:42:07,646 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 21:42:07,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-21 21:42:07,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-02-21 21:42:07,647 INFO L87 Difference]: Start difference. First operand 870 states and 1098 transitions. Second operand 8 states. [2021-02-21 21:42:07,874 WARN L202 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2021-02-21 21:42:08,130 WARN L202 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2021-02-21 21:42:08,886 WARN L202 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2021-02-21 21:42:09,067 WARN L202 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2021-02-21 21:42:09,240 WARN L202 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-02-21 21:42:09,748 WARN L202 SmtUtils]: Spent 404.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2021-02-21 21:42:09,963 WARN L202 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-02-21 21:42:15,170 WARN L202 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-02-21 21:42:20,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 21:42:20,564 INFO L93 Difference]: Finished difference Result 2235 states and 2913 transitions. [2021-02-21 21:42:20,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-21 21:42:20,565 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 394 [2021-02-21 21:42:20,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 21:42:20,577 INFO L225 Difference]: With dead ends: 2235 [2021-02-21 21:42:20,577 INFO L226 Difference]: Without dead ends: 1481 [2021-02-21 21:42:20,582 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2021-02-21 21:42:20,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1481 states. [2021-02-21 21:42:21,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1481 to 869. [2021-02-21 21:42:21,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 869 states. [2021-02-21 21:42:21,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 1096 transitions. [2021-02-21 21:42:21,032 INFO L78 Accepts]: Start accepts. Automaton has 869 states and 1096 transitions. Word has length 394 [2021-02-21 21:42:21,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 21:42:21,033 INFO L480 AbstractCegarLoop]: Abstraction has 869 states and 1096 transitions. [2021-02-21 21:42:21,033 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-21 21:42:21,033 INFO L276 IsEmpty]: Start isEmpty. Operand 869 states and 1096 transitions. [2021-02-21 21:42:21,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2021-02-21 21:42:21,041 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:42:21,041 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 21:42:21,042 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-21 21:42:21,042 INFO L428 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:42:21,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:42:21,042 INFO L82 PathProgramCache]: Analyzing trace with hash 1155702039, now seen corresponding path program 1 times [2021-02-21 21:42:21,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:42:21,043 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [78919722] [2021-02-21 21:42:21,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:42:21,046 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:42:21,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:21,117 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:21,118 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:21,119 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:21,119 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:42:21,122 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:21,122 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:21,563 WARN L202 SmtUtils]: Spent 431.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-02-21 21:42:21,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:42:21,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:21,588 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:21,588 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:21,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-21 21:42:21,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:21,644 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:21,645 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:21,646 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:21,649 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 21:42:21,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-21 21:42:21,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:21,652 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:21,653 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:21,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-02-21 21:42:21,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:21,704 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:21,705 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:21,705 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:21,706 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-21 21:42:21,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-21 21:42:21,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:21,809 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:21,810 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:21,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-02-21 21:42:21,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:21,837 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:21,837 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:21,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-21 21:42:21,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:21,840 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:21,841 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:21,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-21 21:42:21,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:21,844 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:21,844 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:21,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-02-21 21:42:21,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:21,847 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:21,847 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:21,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-02-21 21:42:21,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:21,851 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:21,851 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:21,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-02-21 21:42:21,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:21,854 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:21,855 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:21,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-02-21 21:42:21,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:21,857 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:21,858 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:21,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-02-21 21:42:21,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:21,861 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:21,862 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:21,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 21:42:21,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:21,865 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:21,865 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:21,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-02-21 21:42:21,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:21,869 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:21,870 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:21,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-02-21 21:42:21,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:21,873 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:21,876 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:21,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-02-21 21:42:21,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:21,879 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:21,880 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:21,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-21 21:42:21,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:21,882 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:21,883 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:21,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-21 21:42:21,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:21,886 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:21,887 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:21,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-02-21 21:42:21,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:21,889 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:21,890 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:21,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2021-02-21 21:42:21,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:21,916 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:21,917 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:21,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2021-02-21 21:42:21,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:21,921 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:21,922 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:22,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 21:42:22,152 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [78919722] [2021-02-21 21:42:22,153 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 21:42:22,153 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-21 21:42:22,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018262324] [2021-02-21 21:42:22,154 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-21 21:42:22,154 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 21:42:22,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-21 21:42:22,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-02-21 21:42:22,155 INFO L87 Difference]: Start difference. First operand 869 states and 1096 transitions. Second operand 8 states. [2021-02-21 21:42:22,369 WARN L202 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2021-02-21 21:42:22,614 WARN L202 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2021-02-21 21:42:23,441 WARN L202 SmtUtils]: Spent 462.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2021-02-21 21:42:23,629 WARN L202 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2021-02-21 21:42:23,827 WARN L202 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-02-21 21:42:24,338 WARN L202 SmtUtils]: Spent 426.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2021-02-21 21:42:24,558 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-02-21 21:42:29,520 WARN L202 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-02-21 21:42:34,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 21:42:34,764 INFO L93 Difference]: Finished difference Result 2228 states and 2903 transitions. [2021-02-21 21:42:34,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-21 21:42:34,768 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 394 [2021-02-21 21:42:34,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 21:42:34,780 INFO L225 Difference]: With dead ends: 2228 [2021-02-21 21:42:34,780 INFO L226 Difference]: Without dead ends: 1480 [2021-02-21 21:42:34,784 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2021-02-21 21:42:34,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1480 states. [2021-02-21 21:42:35,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1480 to 868. [2021-02-21 21:42:35,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 868 states. [2021-02-21 21:42:35,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 868 states to 868 states and 1094 transitions. [2021-02-21 21:42:35,317 INFO L78 Accepts]: Start accepts. Automaton has 868 states and 1094 transitions. Word has length 394 [2021-02-21 21:42:35,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 21:42:35,318 INFO L480 AbstractCegarLoop]: Abstraction has 868 states and 1094 transitions. [2021-02-21 21:42:35,318 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-21 21:42:35,318 INFO L276 IsEmpty]: Start isEmpty. Operand 868 states and 1094 transitions. [2021-02-21 21:42:35,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2021-02-21 21:42:35,328 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:42:35,328 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 21:42:35,329 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-21 21:42:35,329 INFO L428 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:42:35,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:42:35,330 INFO L82 PathProgramCache]: Analyzing trace with hash -624298825, now seen corresponding path program 1 times [2021-02-21 21:42:35,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:42:35,330 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1156263202] [2021-02-21 21:42:35,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:42:35,335 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:42:35,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:35,429 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:35,430 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:35,430 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:35,431 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:42:35,434 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:35,435 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:35,871 WARN L202 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-02-21 21:42:35,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:42:35,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:35,896 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:35,897 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:35,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-21 21:42:35,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:35,948 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:35,949 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:35,950 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:35,950 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 21:42:35,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-21 21:42:35,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:35,954 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:35,955 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:35,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-02-21 21:42:35,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:36,002 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:36,002 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:36,004 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:36,004 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-21 21:42:36,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-21 21:42:36,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:36,099 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:36,099 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:36,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-02-21 21:42:36,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:36,123 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:36,124 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:36,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-21 21:42:36,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:36,126 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:36,129 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:36,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-21 21:42:36,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:36,132 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:36,133 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:36,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-02-21 21:42:36,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:36,136 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:36,137 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:36,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-02-21 21:42:36,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:36,140 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:36,141 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:36,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-02-21 21:42:36,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:36,145 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:36,146 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:36,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-02-21 21:42:36,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:36,152 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:36,153 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:36,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-02-21 21:42:36,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:36,157 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:36,166 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:36,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 21:42:36,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:36,170 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:36,170 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:36,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-02-21 21:42:36,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:36,173 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:36,174 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:36,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-02-21 21:42:36,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:36,178 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:36,179 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:36,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-02-21 21:42:36,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:36,183 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:36,183 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:36,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-21 21:42:36,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:36,186 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:36,187 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:36,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-21 21:42:36,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:36,190 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:36,190 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:36,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-02-21 21:42:36,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:36,194 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:36,195 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:36,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2021-02-21 21:42:36,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:36,218 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:36,219 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:36,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2021-02-21 21:42:36,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:36,222 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:36,223 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:36,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 21:42:36,409 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1156263202] [2021-02-21 21:42:36,409 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 21:42:36,410 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-21 21:42:36,410 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004885918] [2021-02-21 21:42:36,411 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-21 21:42:36,411 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 21:42:36,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-21 21:42:36,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-02-21 21:42:36,412 INFO L87 Difference]: Start difference. First operand 868 states and 1094 transitions. Second operand 8 states. [2021-02-21 21:42:36,624 WARN L202 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2021-02-21 21:42:36,866 WARN L202 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2021-02-21 21:42:37,650 WARN L202 SmtUtils]: Spent 435.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2021-02-21 21:42:37,829 WARN L202 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2021-02-21 21:42:38,028 WARN L202 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-02-21 21:42:38,555 WARN L202 SmtUtils]: Spent 450.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2021-02-21 21:42:38,773 WARN L202 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-02-21 21:42:39,226 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-02-21 21:42:43,929 WARN L202 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-02-21 21:42:49,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 21:42:49,636 INFO L93 Difference]: Finished difference Result 2221 states and 2893 transitions. [2021-02-21 21:42:49,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-21 21:42:49,638 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 394 [2021-02-21 21:42:49,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 21:42:49,648 INFO L225 Difference]: With dead ends: 2221 [2021-02-21 21:42:49,648 INFO L226 Difference]: Without dead ends: 1479 [2021-02-21 21:42:49,652 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2021-02-21 21:42:49,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1479 states. [2021-02-21 21:42:50,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1479 to 867. [2021-02-21 21:42:50,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 867 states. [2021-02-21 21:42:50,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1092 transitions. [2021-02-21 21:42:50,107 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1092 transitions. Word has length 394 [2021-02-21 21:42:50,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 21:42:50,108 INFO L480 AbstractCegarLoop]: Abstraction has 867 states and 1092 transitions. [2021-02-21 21:42:50,108 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-21 21:42:50,108 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1092 transitions. [2021-02-21 21:42:50,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2021-02-21 21:42:50,116 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:42:50,117 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 21:42:50,117 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-21 21:42:50,117 INFO L428 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:42:50,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:42:50,118 INFO L82 PathProgramCache]: Analyzing trace with hash -1538384809, now seen corresponding path program 1 times [2021-02-21 21:42:50,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:42:50,119 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1550234576] [2021-02-21 21:42:50,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:42:50,122 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:42:50,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:50,191 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:50,191 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:50,192 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:50,192 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:42:50,196 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:50,196 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:50,617 WARN L202 SmtUtils]: Spent 410.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-02-21 21:42:50,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:42:50,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:50,638 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:50,639 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:50,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-21 21:42:50,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:50,682 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:50,682 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:50,683 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:50,683 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 21:42:50,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-21 21:42:50,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:50,686 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:50,687 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:50,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-02-21 21:42:50,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:50,729 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:50,729 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:50,731 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:50,731 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-21 21:42:50,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-21 21:42:50,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:50,824 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:50,825 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:50,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-02-21 21:42:50,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:50,847 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:50,848 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:50,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-21 21:42:50,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:50,851 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:50,851 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:50,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-21 21:42:50,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:50,853 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:50,854 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:50,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-02-21 21:42:50,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:50,857 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:50,857 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:50,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-02-21 21:42:50,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:50,860 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:50,860 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:50,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-02-21 21:42:50,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:50,863 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:50,863 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:50,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-02-21 21:42:50,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:50,865 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:50,873 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:50,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-02-21 21:42:50,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:50,877 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:50,877 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:50,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 21:42:50,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:50,880 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:50,880 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:50,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-02-21 21:42:50,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:50,887 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:50,890 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:50,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-02-21 21:42:50,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:50,897 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:50,898 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:50,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-02-21 21:42:50,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:50,901 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:50,901 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:50,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-21 21:42:50,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:50,906 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:50,906 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:50,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-21 21:42:50,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:50,909 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:50,909 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:50,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-02-21 21:42:50,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:50,911 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:50,912 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:50,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2021-02-21 21:42:50,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:50,938 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:50,939 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:50,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2021-02-21 21:42:50,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:42:50,946 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:42:50,946 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:42:51,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 21:42:51,128 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1550234576] [2021-02-21 21:42:51,128 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 21:42:51,128 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-21 21:42:51,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766092326] [2021-02-21 21:42:51,129 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-21 21:42:51,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 21:42:51,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-21 21:42:51,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-02-21 21:42:51,130 INFO L87 Difference]: Start difference. First operand 867 states and 1092 transitions. Second operand 8 states. [2021-02-21 21:42:51,324 WARN L202 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2021-02-21 21:42:51,567 WARN L202 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2021-02-21 21:42:52,368 WARN L202 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2021-02-21 21:42:52,550 WARN L202 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2021-02-21 21:42:52,774 WARN L202 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-02-21 21:42:53,282 WARN L202 SmtUtils]: Spent 440.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2021-02-21 21:42:53,513 WARN L202 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-02-21 21:42:58,466 WARN L202 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-02-21 21:43:03,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 21:43:03,741 INFO L93 Difference]: Finished difference Result 2214 states and 2883 transitions. [2021-02-21 21:43:03,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-21 21:43:03,742 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 394 [2021-02-21 21:43:03,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 21:43:03,752 INFO L225 Difference]: With dead ends: 2214 [2021-02-21 21:43:03,752 INFO L226 Difference]: Without dead ends: 1478 [2021-02-21 21:43:03,756 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2021-02-21 21:43:03,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1478 states. [2021-02-21 21:43:04,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1478 to 866. [2021-02-21 21:43:04,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 866 states. [2021-02-21 21:43:04,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 1090 transitions. [2021-02-21 21:43:04,374 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 1090 transitions. Word has length 394 [2021-02-21 21:43:04,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 21:43:04,375 INFO L480 AbstractCegarLoop]: Abstraction has 866 states and 1090 transitions. [2021-02-21 21:43:04,375 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-21 21:43:04,375 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 1090 transitions. [2021-02-21 21:43:04,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2021-02-21 21:43:04,378 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:43:04,378 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 21:43:04,379 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-21 21:43:04,379 INFO L428 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:43:04,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:43:04,379 INFO L82 PathProgramCache]: Analyzing trace with hash 274142199, now seen corresponding path program 1 times [2021-02-21 21:43:04,380 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:43:04,380 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [98504349] [2021-02-21 21:43:04,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:43:04,382 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:43:04,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:04,448 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:04,449 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:04,449 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:04,450 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:43:04,453 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:04,453 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:04,857 WARN L202 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-02-21 21:43:04,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:43:04,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:04,883 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:04,884 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:04,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-21 21:43:04,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:04,944 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:04,944 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:04,945 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:04,945 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 21:43:04,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-21 21:43:04,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:04,948 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:04,948 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:04,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-02-21 21:43:04,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:04,991 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:04,993 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:04,994 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:04,994 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-21 21:43:05,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-21 21:43:05,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:05,090 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:05,090 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:05,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-02-21 21:43:05,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:05,113 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:05,114 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:05,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-21 21:43:05,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:05,117 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:05,117 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:05,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-21 21:43:05,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:05,120 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:05,120 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:05,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-02-21 21:43:05,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:05,123 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:05,123 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:05,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-02-21 21:43:05,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:05,125 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:05,126 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:05,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-02-21 21:43:05,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:05,128 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:05,128 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:05,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-02-21 21:43:05,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:05,131 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:05,131 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:05,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-02-21 21:43:05,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:05,133 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:05,134 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:05,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 21:43:05,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:05,136 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:05,136 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:05,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-02-21 21:43:05,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:05,139 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:05,139 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:05,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-02-21 21:43:05,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:05,141 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:05,142 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:05,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-02-21 21:43:05,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:05,144 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:05,144 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:05,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-21 21:43:05,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:05,147 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:05,147 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:05,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-21 21:43:05,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:05,150 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:05,150 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:05,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-02-21 21:43:05,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:05,152 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:05,153 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:05,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2021-02-21 21:43:05,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:05,175 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:05,176 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:05,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2021-02-21 21:43:05,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:05,179 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:05,180 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:05,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 21:43:05,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [98504349] [2021-02-21 21:43:05,366 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 21:43:05,366 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-21 21:43:05,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28764048] [2021-02-21 21:43:05,373 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-21 21:43:05,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 21:43:05,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-21 21:43:05,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-02-21 21:43:05,376 INFO L87 Difference]: Start difference. First operand 866 states and 1090 transitions. Second operand 8 states. [2021-02-21 21:43:05,597 WARN L202 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2021-02-21 21:43:05,834 WARN L202 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2021-02-21 21:43:06,619 WARN L202 SmtUtils]: Spent 418.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2021-02-21 21:43:06,784 WARN L202 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2021-02-21 21:43:07,004 WARN L202 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-02-21 21:43:07,486 WARN L202 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2021-02-21 21:43:07,712 WARN L202 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-02-21 21:43:12,738 WARN L202 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-02-21 21:43:18,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 21:43:18,109 INFO L93 Difference]: Finished difference Result 2207 states and 2873 transitions. [2021-02-21 21:43:18,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-21 21:43:18,110 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 394 [2021-02-21 21:43:18,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 21:43:18,119 INFO L225 Difference]: With dead ends: 2207 [2021-02-21 21:43:18,119 INFO L226 Difference]: Without dead ends: 1477 [2021-02-21 21:43:18,123 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2021-02-21 21:43:18,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1477 states. [2021-02-21 21:43:18,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1477 to 865. [2021-02-21 21:43:18,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 865 states. [2021-02-21 21:43:18,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1088 transitions. [2021-02-21 21:43:18,644 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1088 transitions. Word has length 394 [2021-02-21 21:43:18,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 21:43:18,644 INFO L480 AbstractCegarLoop]: Abstraction has 865 states and 1088 transitions. [2021-02-21 21:43:18,645 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-21 21:43:18,645 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1088 transitions. [2021-02-21 21:43:18,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2021-02-21 21:43:18,648 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:43:18,649 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 21:43:18,649 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-21 21:43:18,649 INFO L428 AbstractCegarLoop]: === Iteration 7 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:43:18,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:43:18,650 INFO L82 PathProgramCache]: Analyzing trace with hash 1103944599, now seen corresponding path program 1 times [2021-02-21 21:43:18,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:43:18,650 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2000525691] [2021-02-21 21:43:18,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:43:18,653 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:43:18,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:18,742 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:18,742 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:18,743 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:18,753 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:43:18,757 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:18,757 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:19,182 WARN L202 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-02-21 21:43:19,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:43:19,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:19,203 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:19,204 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:19,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-21 21:43:19,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:19,246 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:19,246 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:19,247 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:19,247 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 21:43:19,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-21 21:43:19,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:19,250 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:19,250 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:19,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-02-21 21:43:19,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:19,293 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:19,294 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:19,294 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:19,295 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-21 21:43:19,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-21 21:43:19,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:19,386 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:19,386 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:19,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-02-21 21:43:19,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:19,406 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:19,407 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:19,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-21 21:43:19,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:19,409 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:19,409 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:19,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-21 21:43:19,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:19,412 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:19,412 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:19,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-02-21 21:43:19,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:19,414 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:19,414 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:19,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-02-21 21:43:19,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:19,416 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:19,416 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:19,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-02-21 21:43:19,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:19,418 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:19,419 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:19,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-02-21 21:43:19,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:19,420 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:19,421 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:19,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-02-21 21:43:19,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:19,423 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:19,423 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:19,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 21:43:19,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:19,426 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:19,426 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:19,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-02-21 21:43:19,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:19,428 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:19,429 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:19,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-02-21 21:43:19,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:19,431 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:19,432 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:19,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-02-21 21:43:19,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:19,434 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:19,434 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:19,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-21 21:43:19,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:19,436 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:19,437 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:19,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-21 21:43:19,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:19,439 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:19,440 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:19,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-02-21 21:43:19,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:19,442 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:19,442 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:19,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2021-02-21 21:43:19,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:19,466 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:19,467 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:19,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2021-02-21 21:43:19,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:19,470 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:19,471 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:19,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 21:43:19,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2000525691] [2021-02-21 21:43:19,651 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 21:43:19,651 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-21 21:43:19,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246258008] [2021-02-21 21:43:19,652 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-21 21:43:19,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 21:43:19,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-21 21:43:19,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-02-21 21:43:19,653 INFO L87 Difference]: Start difference. First operand 865 states and 1088 transitions. Second operand 8 states. [2021-02-21 21:43:19,863 WARN L202 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2021-02-21 21:43:20,111 WARN L202 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2021-02-21 21:43:20,838 WARN L202 SmtUtils]: Spent 454.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2021-02-21 21:43:21,025 WARN L202 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2021-02-21 21:43:21,236 WARN L202 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-02-21 21:43:21,745 WARN L202 SmtUtils]: Spent 460.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2021-02-21 21:43:21,989 WARN L202 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-02-21 21:43:26,656 WARN L202 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-02-21 21:43:31,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 21:43:31,123 INFO L93 Difference]: Finished difference Result 2200 states and 2863 transitions. [2021-02-21 21:43:31,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-21 21:43:31,124 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 394 [2021-02-21 21:43:31,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 21:43:31,133 INFO L225 Difference]: With dead ends: 2200 [2021-02-21 21:43:31,133 INFO L226 Difference]: Without dead ends: 1476 [2021-02-21 21:43:31,137 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2021-02-21 21:43:31,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1476 states. [2021-02-21 21:43:31,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1476 to 864. [2021-02-21 21:43:31,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 864 states. [2021-02-21 21:43:31,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 1086 transitions. [2021-02-21 21:43:31,822 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 1086 transitions. Word has length 394 [2021-02-21 21:43:31,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 21:43:31,822 INFO L480 AbstractCegarLoop]: Abstraction has 864 states and 1086 transitions. [2021-02-21 21:43:31,822 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-21 21:43:31,822 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 1086 transitions. [2021-02-21 21:43:31,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2021-02-21 21:43:31,826 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:43:31,826 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 21:43:31,826 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-21 21:43:31,826 INFO L428 AbstractCegarLoop]: === Iteration 8 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:43:31,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:43:31,827 INFO L82 PathProgramCache]: Analyzing trace with hash 261583671, now seen corresponding path program 1 times [2021-02-21 21:43:31,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:43:31,827 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1772519227] [2021-02-21 21:43:31,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:43:31,830 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:43:31,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:31,953 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:31,954 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:31,954 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:31,956 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:43:31,962 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:31,963 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:43:31,964 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:31,964 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:43:31,965 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:31,965 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:32,366 WARN L202 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-02-21 21:43:32,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:43:32,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:32,391 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:32,392 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:32,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-21 21:43:32,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:32,433 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:32,433 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:32,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-21 21:43:32,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:32,436 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:32,436 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:32,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-02-21 21:43:32,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:32,480 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:32,480 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:32,481 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:32,481 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:43:32,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-21 21:43:32,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:32,568 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:32,568 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:32,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-02-21 21:43:32,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:32,601 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:32,602 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:43:32,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-21 21:43:32,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:32,618 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:32,619 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:32,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-21 21:43:32,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:32,622 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:32,622 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:32,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-02-21 21:43:32,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:32,625 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:32,626 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:32,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-02-21 21:43:32,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:32,629 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:32,629 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:32,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-02-21 21:43:32,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:32,632 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:32,632 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:32,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-02-21 21:43:32,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:32,635 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:32,636 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:32,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-02-21 21:43:32,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:32,638 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:32,639 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:32,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 21:43:32,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:32,643 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:32,643 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:32,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-02-21 21:43:32,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:32,646 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:32,647 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:32,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-02-21 21:43:32,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:32,650 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:32,650 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:32,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-02-21 21:43:32,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:32,654 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:32,654 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:32,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-21 21:43:32,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:32,658 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:32,658 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:32,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-21 21:43:32,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:32,662 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:32,662 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:32,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-02-21 21:43:32,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:32,665 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:32,666 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:32,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2021-02-21 21:43:32,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:32,708 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:32,708 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:32,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2021-02-21 21:43:32,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:32,713 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:32,714 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:32,714 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:32,715 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:43:32,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 21:43:32,914 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1772519227] [2021-02-21 21:43:32,914 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 21:43:32,914 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-21 21:43:32,914 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6424535] [2021-02-21 21:43:32,915 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-21 21:43:32,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 21:43:32,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-21 21:43:32,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-02-21 21:43:32,916 INFO L87 Difference]: Start difference. First operand 864 states and 1086 transitions. Second operand 8 states. [2021-02-21 21:43:33,167 WARN L202 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2021-02-21 21:43:33,419 WARN L202 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-02-21 21:43:34,122 WARN L202 SmtUtils]: Spent 447.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2021-02-21 21:43:34,300 WARN L202 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-02-21 21:43:34,618 WARN L202 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2021-02-21 21:43:34,802 WARN L202 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2021-02-21 21:43:36,836 WARN L202 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-02-21 21:43:42,268 WARN L202 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-02-21 21:43:54,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 21:43:54,499 INFO L93 Difference]: Finished difference Result 4153 states and 5621 transitions. [2021-02-21 21:43:54,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-02-21 21:43:54,500 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 394 [2021-02-21 21:43:54,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 21:43:54,519 INFO L225 Difference]: With dead ends: 4153 [2021-02-21 21:43:54,519 INFO L226 Difference]: Without dead ends: 3435 [2021-02-21 21:43:54,524 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=147, Invalid=315, Unknown=0, NotChecked=0, Total=462 [2021-02-21 21:43:54,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3435 states. [2021-02-21 21:43:56,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3435 to 1837. [2021-02-21 21:43:56,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1837 states. [2021-02-21 21:43:56,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1837 states to 1837 states and 2363 transitions. [2021-02-21 21:43:56,081 INFO L78 Accepts]: Start accepts. Automaton has 1837 states and 2363 transitions. Word has length 394 [2021-02-21 21:43:56,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 21:43:56,082 INFO L480 AbstractCegarLoop]: Abstraction has 1837 states and 2363 transitions. [2021-02-21 21:43:56,082 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-21 21:43:56,082 INFO L276 IsEmpty]: Start isEmpty. Operand 1837 states and 2363 transitions. [2021-02-21 21:43:56,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2021-02-21 21:43:56,087 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:43:56,088 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 21:43:56,088 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-21 21:43:56,088 INFO L428 AbstractCegarLoop]: === Iteration 9 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:43:56,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:43:56,089 INFO L82 PathProgramCache]: Analyzing trace with hash 433299855, now seen corresponding path program 1 times [2021-02-21 21:43:56,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:43:56,089 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2002047988] [2021-02-21 21:43:56,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:43:56,092 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:43:56,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:56,152 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:56,154 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:56,154 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:56,155 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:43:56,158 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:56,158 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:56,537 WARN L202 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-02-21 21:43:56,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:43:56,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:56,562 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:56,563 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:56,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-02-21 21:43:56,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:56,604 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:56,605 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 21:43:56,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-21 21:43:56,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:56,608 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:56,608 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:56,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-02-21 21:43:56,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:56,653 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:56,654 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-21 21:43:56,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-02-21 21:43:56,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:56,766 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:56,767 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:56,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-02-21 21:43:56,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:56,785 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:56,786 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:56,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-21 21:43:56,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:56,789 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:56,790 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:56,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-21 21:43:56,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:56,792 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:56,792 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:56,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-02-21 21:43:56,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:56,794 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:56,795 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:56,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-02-21 21:43:56,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:56,797 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:56,797 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:56,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-02-21 21:43:56,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:56,801 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:56,803 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:56,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-02-21 21:43:56,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:56,805 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:56,806 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:56,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-02-21 21:43:56,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:56,810 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:56,810 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:56,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 21:43:56,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:56,812 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:56,813 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:56,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-02-21 21:43:56,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:56,817 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:56,818 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:56,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-02-21 21:43:56,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:56,820 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:56,820 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:56,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-02-21 21:43:56,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:56,825 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:56,825 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:56,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-21 21:43:56,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:56,829 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:56,829 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:56,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-21 21:43:56,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:56,831 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:56,832 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:56,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-02-21 21:43:56,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:56,834 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:56,835 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:56,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2021-02-21 21:43:56,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:56,855 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:56,856 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:56,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2021-02-21 21:43:56,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:43:56,859 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:43:56,859 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:43:56,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 21:43:57,000 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2002047988] [2021-02-21 21:43:57,000 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 21:43:57,000 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-21 21:43:57,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21373354] [2021-02-21 21:43:57,006 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-21 21:43:57,007 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 21:43:57,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-21 21:43:57,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-02-21 21:43:57,007 INFO L87 Difference]: Start difference. First operand 1837 states and 2363 transitions. Second operand 8 states. [2021-02-21 21:43:57,243 WARN L202 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2021-02-21 21:43:57,470 WARN L202 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2021-02-21 21:43:58,251 WARN L202 SmtUtils]: Spent 432.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2021-02-21 21:43:58,424 WARN L202 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-02-21 21:43:58,956 WARN L202 SmtUtils]: Spent 421.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2021-02-21 21:43:59,183 WARN L202 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-02-21 21:44:03,857 WARN L202 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-02-21 21:44:11,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 21:44:11,024 INFO L93 Difference]: Finished difference Result 4797 states and 6371 transitions. [2021-02-21 21:44:11,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-21 21:44:11,025 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 395 [2021-02-21 21:44:11,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 21:44:11,042 INFO L225 Difference]: With dead ends: 4797 [2021-02-21 21:44:11,042 INFO L226 Difference]: Without dead ends: 3104 [2021-02-21 21:44:11,048 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2021-02-21 21:44:11,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3104 states. [2021-02-21 21:44:12,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3104 to 1799. [2021-02-21 21:44:12,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1799 states. [2021-02-21 21:44:12,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1799 states to 1799 states and 2314 transitions. [2021-02-21 21:44:12,200 INFO L78 Accepts]: Start accepts. Automaton has 1799 states and 2314 transitions. Word has length 395 [2021-02-21 21:44:12,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 21:44:12,201 INFO L480 AbstractCegarLoop]: Abstraction has 1799 states and 2314 transitions. [2021-02-21 21:44:12,201 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-21 21:44:12,201 INFO L276 IsEmpty]: Start isEmpty. Operand 1799 states and 2314 transitions. [2021-02-21 21:44:12,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2021-02-21 21:44:12,205 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:44:12,205 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 21:44:12,205 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-21 21:44:12,205 INFO L428 AbstractCegarLoop]: === Iteration 10 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:44:12,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:44:12,206 INFO L82 PathProgramCache]: Analyzing trace with hash 912780570, now seen corresponding path program 1 times [2021-02-21 21:44:12,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:44:12,206 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1855921565] [2021-02-21 21:44:12,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:44:12,209 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:44:12,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 21:44:12,246 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 21:44:12,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 21:44:12,290 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 21:44:12,708 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-21 21:44:12,709 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-21 21:44:12,710 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-21 21:44:12,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.02 09:44:12 BoogieIcfgContainer [2021-02-21 21:44:12,761 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-21 21:44:12,762 INFO L168 Benchmark]: Toolchain (without parser) took 146370.62 ms. Allocated memory was 152.0 MB in the beginning and 1.0 GB in the end (delta: 889.2 MB). Free memory was 127.3 MB in the beginning and 516.2 MB in the end (delta: -388.9 MB). Peak memory consumption was 501.2 MB. Max. memory is 8.0 GB. [2021-02-21 21:44:12,762 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 152.0 MB. Free memory is still 126.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-21 21:44:12,763 INFO L168 Benchmark]: CACSL2BoogieTranslator took 670.81 ms. Allocated memory is still 152.0 MB. Free memory was 126.2 MB in the beginning and 132.5 MB in the end (delta: -6.3 MB). Peak memory consumption was 29.3 MB. Max. memory is 8.0 GB. [2021-02-21 21:44:12,763 INFO L168 Benchmark]: Boogie Preprocessor took 186.33 ms. Allocated memory is still 152.0 MB. Free memory was 132.5 MB in the beginning and 128.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-02-21 21:44:12,763 INFO L168 Benchmark]: RCFGBuilder took 1946.25 ms. Allocated memory was 152.0 MB in the beginning and 183.5 MB in the end (delta: 31.5 MB). Free memory was 127.8 MB in the beginning and 158.1 MB in the end (delta: -30.3 MB). Peak memory consumption was 71.5 MB. Max. memory is 8.0 GB. [2021-02-21 21:44:12,763 INFO L168 Benchmark]: TraceAbstraction took 143522.58 ms. Allocated memory was 183.5 MB in the beginning and 1.0 GB in the end (delta: 857.7 MB). Free memory was 157.5 MB in the beginning and 516.2 MB in the end (delta: -358.7 MB). Peak memory consumption was 499.1 MB. Max. memory is 8.0 GB. [2021-02-21 21:44:12,764 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 152.0 MB. Free memory is still 126.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 670.81 ms. Allocated memory is still 152.0 MB. Free memory was 126.2 MB in the beginning and 132.5 MB in the end (delta: -6.3 MB). Peak memory consumption was 29.3 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 186.33 ms. Allocated memory is still 152.0 MB. Free memory was 132.5 MB in the beginning and 128.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1946.25 ms. Allocated memory was 152.0 MB in the beginning and 183.5 MB in the end (delta: 31.5 MB). Free memory was 127.8 MB in the beginning and 158.1 MB in the end (delta: -30.3 MB). Peak memory consumption was 71.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 143522.58 ms. Allocated memory was 183.5 MB in the beginning and 1.0 GB in the end (delta: 857.7 MB). Free memory was 157.5 MB in the beginning and 516.2 MB in the end (delta: -358.7 MB). Peak memory consumption was 499.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 13]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L17] int m_pc = 0; [L18] int t1_pc = 0; [L19] int t2_pc = 0; [L20] int t3_pc = 0; [L21] int t4_pc = 0; [L22] int t5_pc = 0; [L23] int t6_pc = 0; [L24] int t7_pc = 0; [L25] int t8_pc = 0; [L26] int t9_pc = 0; [L27] int t10_pc = 0; [L28] int t11_pc = 0; [L29] int t12_pc = 0; [L30] int t13_pc = 0; [L31] int m_st ; [L32] int t1_st ; [L33] int t2_st ; [L34] int t3_st ; [L35] int t4_st ; [L36] int t5_st ; [L37] int t6_st ; [L38] int t7_st ; [L39] int t8_st ; [L40] int t9_st ; [L41] int t10_st ; [L42] int t11_st ; [L43] int t12_st ; [L44] int t13_st ; [L45] int m_i ; [L46] int t1_i ; [L47] int t2_i ; [L48] int t3_i ; [L49] int t4_i ; [L50] int t5_i ; [L51] int t6_i ; [L52] int t7_i ; [L53] int t8_i ; [L54] int t9_i ; [L55] int t10_i ; [L56] int t11_i ; [L57] int t12_i ; [L58] int t13_i ; [L59] int M_E = 2; [L60] int T1_E = 2; [L61] int T2_E = 2; [L62] int T3_E = 2; [L63] int T4_E = 2; [L64] int T5_E = 2; [L65] int T6_E = 2; [L66] int T7_E = 2; [L67] int T8_E = 2; [L68] int T9_E = 2; [L69] int T10_E = 2; [L70] int T11_E = 2; [L71] int T12_E = 2; [L72] int T13_E = 2; [L73] int E_1 = 2; [L74] int E_2 = 2; [L75] int E_3 = 2; [L76] int E_4 = 2; [L77] int E_5 = 2; [L78] int E_6 = 2; [L79] int E_7 = 2; [L80] int E_8 = 2; [L81] int E_9 = 2; [L82] int E_10 = 2; [L83] int E_11 = 2; [L84] int E_12 = 2; [L85] int E_13 = 2; [L1929] int __retres1 ; [L1933] CALL init_model() [L1832] m_i = 1 [L1833] t1_i = 1 [L1834] t2_i = 1 [L1835] t3_i = 1 [L1836] t4_i = 1 [L1837] t5_i = 1 [L1838] t6_i = 1 [L1839] t7_i = 1 [L1840] t8_i = 1 [L1841] t9_i = 1 [L1842] t10_i = 1 [L1843] t11_i = 1 [L1844] t12_i = 1 [L1845] t13_i = 1 [L1933] RET init_model() [L1934] CALL start_simulation() [L1870] int kernel_st ; [L1871] int tmp ; [L1872] int tmp___0 ; [L1876] kernel_st = 0 [L1877] FCALL update_channels() [L1878] CALL init_threads() [L873] COND TRUE m_i == 1 [L874] m_st = 0 [L878] COND TRUE t1_i == 1 [L879] t1_st = 0 [L883] COND TRUE t2_i == 1 [L884] t2_st = 0 [L888] COND TRUE t3_i == 1 [L889] t3_st = 0 [L893] COND TRUE t4_i == 1 [L894] t4_st = 0 [L898] COND TRUE t5_i == 1 [L899] t5_st = 0 [L903] COND TRUE t6_i == 1 [L904] t6_st = 0 [L908] COND TRUE t7_i == 1 [L909] t7_st = 0 [L913] COND TRUE t8_i == 1 [L914] t8_st = 0 [L918] COND TRUE t9_i == 1 [L919] t9_st = 0 [L923] COND TRUE t10_i == 1 [L924] t10_st = 0 [L928] COND TRUE t11_i == 1 [L929] t11_st = 0 [L933] COND TRUE t12_i == 1 [L934] t12_st = 0 [L938] COND TRUE t13_i == 1 [L939] t13_st = 0 [L1878] RET init_threads() [L1879] CALL fire_delta_events() [L1250] COND FALSE !(M_E == 0) [L1255] COND FALSE !(T1_E == 0) [L1260] COND FALSE !(T2_E == 0) [L1265] COND FALSE !(T3_E == 0) [L1270] COND FALSE !(T4_E == 0) [L1275] COND FALSE !(T5_E == 0) [L1280] COND FALSE !(T6_E == 0) [L1285] COND FALSE !(T7_E == 0) [L1290] COND FALSE !(T8_E == 0) [L1295] COND FALSE !(T9_E == 0) [L1300] COND FALSE !(T10_E == 0) [L1305] COND FALSE !(T11_E == 0) [L1310] COND FALSE !(T12_E == 0) [L1315] COND FALSE !(T13_E == 0) [L1320] COND FALSE !(E_1 == 0) [L1325] COND FALSE !(E_2 == 0) [L1330] COND FALSE !(E_3 == 0) [L1335] COND FALSE !(E_4 == 0) [L1340] COND FALSE !(E_5 == 0) [L1345] COND FALSE !(E_6 == 0) [L1350] COND FALSE !(E_7 == 0) [L1355] COND FALSE !(E_8 == 0) [L1360] COND FALSE !(E_9 == 0) [L1365] COND FALSE !(E_10 == 0) [L1370] COND FALSE !(E_11 == 0) [L1375] COND FALSE !(E_12 == 0) [L1380] COND FALSE !(E_13 == 0) [L1879] RET fire_delta_events() [L1880] CALL activate_threads() [L1533] int tmp ; [L1534] int tmp___0 ; [L1535] int tmp___1 ; [L1536] int tmp___2 ; [L1537] int tmp___3 ; [L1538] int tmp___4 ; [L1539] int tmp___5 ; [L1540] int tmp___6 ; [L1541] int tmp___7 ; [L1542] int tmp___8 ; [L1543] int tmp___9 ; [L1544] int tmp___10 ; [L1545] int tmp___11 ; [L1546] int tmp___12 ; [L1550] CALL, EXPR is_master_triggered() [L596] int __retres1 ; [L599] COND FALSE !(m_pc == 1) [L609] __retres1 = 0 [L611] return (__retres1); [L1550] RET, EXPR is_master_triggered() [L1550] tmp = is_master_triggered() [L1552] COND FALSE !(\read(tmp)) [L1558] CALL, EXPR is_transmit1_triggered() [L615] int __retres1 ; [L618] COND FALSE !(t1_pc == 1) [L628] __retres1 = 0 [L630] return (__retres1); [L1558] RET, EXPR is_transmit1_triggered() [L1558] tmp___0 = is_transmit1_triggered() [L1560] COND FALSE !(\read(tmp___0)) [L1566] CALL, EXPR is_transmit2_triggered() [L634] int __retres1 ; [L637] COND FALSE !(t2_pc == 1) [L647] __retres1 = 0 [L649] return (__retres1); [L1566] RET, EXPR is_transmit2_triggered() [L1566] tmp___1 = is_transmit2_triggered() [L1568] COND FALSE !(\read(tmp___1)) [L1574] CALL, EXPR is_transmit3_triggered() [L653] int __retres1 ; [L656] COND FALSE !(t3_pc == 1) [L666] __retres1 = 0 [L668] return (__retres1); [L1574] RET, EXPR is_transmit3_triggered() [L1574] tmp___2 = is_transmit3_triggered() [L1576] COND FALSE !(\read(tmp___2)) [L1582] CALL, EXPR is_transmit4_triggered() [L672] int __retres1 ; [L675] COND FALSE !(t4_pc == 1) [L685] __retres1 = 0 [L687] return (__retres1); [L1582] RET, EXPR is_transmit4_triggered() [L1582] tmp___3 = is_transmit4_triggered() [L1584] COND FALSE !(\read(tmp___3)) [L1590] CALL, EXPR is_transmit5_triggered() [L691] int __retres1 ; [L694] COND FALSE !(t5_pc == 1) [L704] __retres1 = 0 [L706] return (__retres1); [L1590] RET, EXPR is_transmit5_triggered() [L1590] tmp___4 = is_transmit5_triggered() [L1592] COND FALSE !(\read(tmp___4)) [L1598] CALL, EXPR is_transmit6_triggered() [L710] int __retres1 ; [L713] COND FALSE !(t6_pc == 1) [L723] __retres1 = 0 [L725] return (__retres1); [L1598] RET, EXPR is_transmit6_triggered() [L1598] tmp___5 = is_transmit6_triggered() [L1600] COND FALSE !(\read(tmp___5)) [L1606] CALL, EXPR is_transmit7_triggered() [L729] int __retres1 ; [L732] COND FALSE !(t7_pc == 1) [L742] __retres1 = 0 [L744] return (__retres1); [L1606] RET, EXPR is_transmit7_triggered() [L1606] tmp___6 = is_transmit7_triggered() [L1608] COND FALSE !(\read(tmp___6)) [L1614] CALL, EXPR is_transmit8_triggered() [L748] int __retres1 ; [L751] COND FALSE !(t8_pc == 1) [L761] __retres1 = 0 [L763] return (__retres1); [L1614] RET, EXPR is_transmit8_triggered() [L1614] tmp___7 = is_transmit8_triggered() [L1616] COND FALSE !(\read(tmp___7)) [L1622] CALL, EXPR is_transmit9_triggered() [L767] int __retres1 ; [L770] COND FALSE !(t9_pc == 1) [L780] __retres1 = 0 [L782] return (__retres1); [L1622] RET, EXPR is_transmit9_triggered() [L1622] tmp___8 = is_transmit9_triggered() [L1624] COND FALSE !(\read(tmp___8)) [L1630] CALL, EXPR is_transmit10_triggered() [L786] int __retres1 ; [L789] COND FALSE !(t10_pc == 1) [L799] __retres1 = 0 [L801] return (__retres1); [L1630] RET, EXPR is_transmit10_triggered() [L1630] tmp___9 = is_transmit10_triggered() [L1632] COND FALSE !(\read(tmp___9)) [L1638] CALL, EXPR is_transmit11_triggered() [L805] int __retres1 ; [L808] COND FALSE !(t11_pc == 1) [L818] __retres1 = 0 [L820] return (__retres1); [L1638] RET, EXPR is_transmit11_triggered() [L1638] tmp___10 = is_transmit11_triggered() [L1640] COND FALSE !(\read(tmp___10)) [L1646] CALL, EXPR is_transmit12_triggered() [L824] int __retres1 ; [L827] COND FALSE !(t12_pc == 1) [L837] __retres1 = 0 [L839] return (__retres1); [L1646] RET, EXPR is_transmit12_triggered() [L1646] tmp___11 = is_transmit12_triggered() [L1648] COND FALSE !(\read(tmp___11)) [L1654] CALL, EXPR is_transmit13_triggered() [L843] int __retres1 ; [L846] COND FALSE !(t13_pc == 1) [L856] __retres1 = 0 [L858] return (__retres1); [L1654] RET, EXPR is_transmit13_triggered() [L1654] tmp___12 = is_transmit13_triggered() [L1656] COND FALSE !(\read(tmp___12)) [L1880] RET activate_threads() [L1881] CALL reset_delta_events() [L1393] COND FALSE !(M_E == 1) [L1398] COND FALSE !(T1_E == 1) [L1403] COND FALSE !(T2_E == 1) [L1408] COND FALSE !(T3_E == 1) [L1413] COND FALSE !(T4_E == 1) [L1418] COND FALSE !(T5_E == 1) [L1423] COND FALSE !(T6_E == 1) [L1428] COND FALSE !(T7_E == 1) [L1433] COND FALSE !(T8_E == 1) [L1438] COND FALSE !(T9_E == 1) [L1443] COND FALSE !(T10_E == 1) [L1448] COND FALSE !(T11_E == 1) [L1453] COND FALSE !(T12_E == 1) [L1458] COND FALSE !(T13_E == 1) [L1463] COND FALSE !(E_1 == 1) [L1468] COND FALSE !(E_2 == 1) [L1473] COND FALSE !(E_3 == 1) [L1478] COND FALSE !(E_4 == 1) [L1483] COND FALSE !(E_5 == 1) [L1488] COND FALSE !(E_6 == 1) [L1493] COND FALSE !(E_7 == 1) [L1498] COND FALSE !(E_8 == 1) [L1503] COND FALSE !(E_9 == 1) [L1508] COND FALSE !(E_10 == 1) [L1513] COND FALSE !(E_11 == 1) [L1518] COND FALSE !(E_12 == 1) [L1523] COND FALSE !(E_13 == 1) [L1881] RET reset_delta_events() [L1884] COND TRUE 1 [L1887] kernel_st = 1 [L1888] CALL eval() [L1029] int tmp ; [L1033] COND TRUE 1 [L1036] CALL, EXPR exists_runnable_thread() [L948] int __retres1 ; [L951] COND TRUE m_st == 0 [L952] __retres1 = 1 [L1024] return (__retres1); [L1036] RET, EXPR exists_runnable_thread() [L1036] tmp = exists_runnable_thread() [L1038] COND TRUE \read(tmp) [L1043] COND TRUE m_st == 0 [L1044] int tmp_ndt_1; [L1045] tmp_ndt_1 = __VERIFIER_nondet_int() [L1046] COND FALSE !(\read(tmp_ndt_1)) [L1057] COND TRUE t1_st == 0 [L1058] int tmp_ndt_2; [L1059] tmp_ndt_2 = __VERIFIER_nondet_int() [L1060] COND FALSE !(\read(tmp_ndt_2)) [L1066] CALL error() [L13] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 46 procedures, 885 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 143.4s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 125.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 6884 SDtfs, 42649 SDslu, 1753 SDs, 0 SdLazy, 30833 SolverSat, 6666 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 79.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 580 GetRequests, 424 SyntacticMatches, 0 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 452 ImplicationChecksByTransitivity, 25.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1837occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 6.6s AutomataMinimizationTime, 9 MinimizatonAttempts, 7187 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...