/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/heap-manipulation/dll_of_dll-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 18:01:24,202 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 18:01:24,207 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 18:01:24,269 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-23 18:01:24,269 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-23 18:01:24,274 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-23 18:01:24,278 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-23 18:01:24,286 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-23 18:01:24,290 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-23 18:01:24,296 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-23 18:01:24,298 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-23 18:01:24,300 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-23 18:01:24,300 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 18:01:24,303 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 18:01:24,304 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 18:01:24,306 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 18:01:24,309 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 18:01:24,310 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 18:01:24,317 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 18:01:24,327 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 18:01:24,329 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 18:01:24,331 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 18:01:24,333 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 18:01:24,346 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 18:01:24,349 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-23 18:01:24,349 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-23 18:01:24,350 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-23 18:01:24,351 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-23 18:01:24,351 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-23 18:01:24,352 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-23 18:01:24,353 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-23 18:01:24,353 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-23 18:01:24,354 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-23 18:01:24,355 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-23 18:01:24,356 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-23 18:01:24,357 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-23 18:01:24,357 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-23 18:01:24,358 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-23 18:01:24,358 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 18:01:24,359 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 18:01:24,360 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 18:01:24,361 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-23 18:01:24,374 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 18:01:24,374 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 18:01:24,376 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 18:01:24,377 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 18:01:24,377 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 18:01:24,377 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 18:01:24,377 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 18:01:24,378 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 18:01:24,378 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 18:01:24,378 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 18:01:24,378 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 18:01:24,378 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 18:01:24,378 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 18:01:24,379 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 18:01:24,379 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 18:01:24,379 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 18:01:24,379 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 18:01:24,380 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 18:01:24,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 18:01:24,380 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 18:01:24,380 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 18:01:24,380 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 18:01:24,381 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 18:01:24,762 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 18:01:24,792 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 18:01:24,795 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 18:01:24,797 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 18:01:24,798 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 18:01:24,799 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/dll_of_dll-1.i [2021-02-23 18:01:24,880 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72fbe5f62/9d98ce2cf2e94503be112701b253c561/FLAGd49041e94 [2021-02-23 18:01:25,619 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 18:01:25,620 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-manipulation/dll_of_dll-1.i [2021-02-23 18:01:25,636 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72fbe5f62/9d98ce2cf2e94503be112701b253c561/FLAGd49041e94 [2021-02-23 18:01:25,832 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72fbe5f62/9d98ce2cf2e94503be112701b253c561 [2021-02-23 18:01:25,836 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 18:01:25,853 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 18:01:25,858 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 18:01:25,859 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 18:01:25,863 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 18:01:25,865 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 06:01:25" (1/1) ... [2021-02-23 18:01:25,866 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63cd235c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:01:25, skipping insertion in model container [2021-02-23 18:01:25,867 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 06:01:25" (1/1) ... [2021-02-23 18:01:25,877 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 18:01:25,954 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 18:01:26,347 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/heap-manipulation/dll_of_dll-1.i[22634,22647] [2021-02-23 18:01:26,453 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 18:01:26,466 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 18:01:26,527 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/heap-manipulation/dll_of_dll-1.i[22634,22647] [2021-02-23 18:01:26,563 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 18:01:26,646 INFO L208 MainTranslator]: Completed translation [2021-02-23 18:01:26,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:01:26 WrapperNode [2021-02-23 18:01:26,647 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 18:01:26,648 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 18:01:26,649 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 18:01:26,649 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 18:01:26,664 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:01:26" (1/1) ... [2021-02-23 18:01:26,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:01:26" (1/1) ... [2021-02-23 18:01:26,684 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:01:26" (1/1) ... [2021-02-23 18:01:26,685 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:01:26" (1/1) ... [2021-02-23 18:01:26,715 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:01:26" (1/1) ... [2021-02-23 18:01:26,728 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:01:26" (1/1) ... [2021-02-23 18:01:26,734 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:01:26" (1/1) ... [2021-02-23 18:01:26,744 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 18:01:26,746 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 18:01:26,746 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 18:01:26,746 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 18:01:26,747 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:01:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 18:01:26,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 18:01:26,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 18:01:26,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-02-23 18:01:26,858 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 18:01:26,858 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-02-23 18:01:26,858 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-02-23 18:01:26,859 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2021-02-23 18:01:26,859 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_slave [2021-02-23 18:01:26,859 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_master [2021-02-23 18:01:26,859 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_slave [2021-02-23 18:01:26,859 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_generic [2021-02-23 18:01:26,860 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_slave [2021-02-23 18:01:26,860 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_slave [2021-02-23 18:01:26,860 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_nested_lists [2021-02-23 18:01:26,860 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_reinit_nested_lists [2021-02-23 18:01:26,860 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_master [2021-02-23 18:01:26,860 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_master [2021-02-23 18:01:26,861 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_master [2021-02-23 18:01:26,861 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_base [2021-02-23 18:01:26,861 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_full [2021-02-23 18:01:26,861 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_dangling [2021-02-23 18:01:26,861 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_init [2021-02-23 18:01:26,862 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 18:01:26,862 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 18:01:26,862 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 18:01:26,862 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-02-23 18:01:26,862 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-02-23 18:01:26,863 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 18:01:26,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 18:01:26,863 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-02-23 18:01:26,863 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-02-23 18:01:26,863 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-02-23 18:01:26,863 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-02-23 18:01:26,864 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-02-23 18:01:26,864 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-02-23 18:01:26,864 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-02-23 18:01:26,864 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-02-23 18:01:26,864 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-02-23 18:01:26,864 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-02-23 18:01:26,865 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-02-23 18:01:26,865 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-02-23 18:01:26,865 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-02-23 18:01:26,865 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-02-23 18:01:26,865 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-02-23 18:01:26,865 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-02-23 18:01:26,866 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-02-23 18:01:26,866 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-02-23 18:01:26,866 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-02-23 18:01:26,866 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-02-23 18:01:26,866 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-02-23 18:01:26,866 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-02-23 18:01:26,867 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-02-23 18:01:26,867 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-02-23 18:01:26,867 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-02-23 18:01:26,867 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-02-23 18:01:26,867 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-02-23 18:01:26,868 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-02-23 18:01:26,868 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-02-23 18:01:26,868 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-02-23 18:01:26,868 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-02-23 18:01:26,868 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-02-23 18:01:26,868 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-02-23 18:01:26,868 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-02-23 18:01:26,869 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-02-23 18:01:26,869 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-02-23 18:01:26,869 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-02-23 18:01:26,869 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-02-23 18:01:26,869 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-02-23 18:01:26,869 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-02-23 18:01:26,870 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-02-23 18:01:26,870 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-02-23 18:01:26,870 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-02-23 18:01:26,870 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-02-23 18:01:26,870 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-02-23 18:01:26,870 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-02-23 18:01:26,871 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-02-23 18:01:26,871 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-02-23 18:01:26,871 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-02-23 18:01:26,871 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-02-23 18:01:26,871 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-02-23 18:01:26,871 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-02-23 18:01:26,871 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-23 18:01:26,872 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-02-23 18:01:26,872 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-02-23 18:01:26,872 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-23 18:01:26,872 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2021-02-23 18:01:26,872 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-02-23 18:01:26,872 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-02-23 18:01:26,873 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-02-23 18:01:26,873 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-02-23 18:01:26,873 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-02-23 18:01:26,873 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-02-23 18:01:26,873 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-02-23 18:01:26,873 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-02-23 18:01:26,873 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-02-23 18:01:26,911 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-02-23 18:01:26,911 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-02-23 18:01:26,911 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-02-23 18:01:26,912 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-02-23 18:01:26,912 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-02-23 18:01:26,912 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-02-23 18:01:26,912 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-02-23 18:01:26,912 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-02-23 18:01:26,912 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-02-23 18:01:26,912 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-02-23 18:01:26,913 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-02-23 18:01:26,913 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-02-23 18:01:26,913 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-02-23 18:01:26,913 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-02-23 18:01:26,913 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-02-23 18:01:26,913 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-02-23 18:01:26,917 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-02-23 18:01:26,917 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-02-23 18:01:26,917 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-02-23 18:01:26,918 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-02-23 18:01:26,918 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-02-23 18:01:26,918 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-02-23 18:01:26,918 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-02-23 18:01:26,918 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-02-23 18:01:26,918 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-02-23 18:01:26,918 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-02-23 18:01:26,919 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-02-23 18:01:26,919 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-02-23 18:01:26,919 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-02-23 18:01:26,919 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-02-23 18:01:26,919 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-02-23 18:01:26,919 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-02-23 18:01:26,919 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-02-23 18:01:26,920 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-02-23 18:01:26,920 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-02-23 18:01:26,920 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-02-23 18:01:26,920 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-02-23 18:01:26,920 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-02-23 18:01:26,920 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 18:01:26,920 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2021-02-23 18:01:26,921 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_slave [2021-02-23 18:01:26,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-23 18:01:26,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-23 18:01:26,921 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_master [2021-02-23 18:01:26,921 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_slave [2021-02-23 18:01:26,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-23 18:01:26,922 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_generic [2021-02-23 18:01:26,922 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-02-23 18:01:26,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-02-23 18:01:26,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 18:01:26,922 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_slave [2021-02-23 18:01:26,922 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_slave [2021-02-23 18:01:26,923 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_nested_lists [2021-02-23 18:01:26,923 INFO L130 BoogieDeclarations]: Found specification of procedure dll_reinit_nested_lists [2021-02-23 18:01:26,923 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_master [2021-02-23 18:01:26,923 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_master [2021-02-23 18:01:26,923 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_master [2021-02-23 18:01:26,923 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_base [2021-02-23 18:01:26,924 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_full [2021-02-23 18:01:26,924 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_dangling [2021-02-23 18:01:26,924 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_init [2021-02-23 18:01:26,924 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 18:01:26,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 18:01:26,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 18:01:26,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 18:01:26,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 18:01:26,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 18:01:27,958 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 18:01:27,958 INFO L299 CfgBuilder]: Removed 38 assume(true) statements. [2021-02-23 18:01:27,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 06:01:27 BoogieIcfgContainer [2021-02-23 18:01:27,962 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 18:01:27,964 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 18:01:27,964 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 18:01:27,968 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 18:01:27,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 06:01:25" (1/3) ... [2021-02-23 18:01:27,970 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ae48dae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 06:01:27, skipping insertion in model container [2021-02-23 18:01:27,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:01:26" (2/3) ... [2021-02-23 18:01:27,970 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ae48dae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 06:01:27, skipping insertion in model container [2021-02-23 18:01:27,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 06:01:27" (3/3) ... [2021-02-23 18:01:27,974 INFO L111 eAbstractionObserver]: Analyzing ICFG dll_of_dll-1.i [2021-02-23 18:01:27,982 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 18:01:27,989 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 18:01:28,009 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 18:01:28,065 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 18:01:28,066 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 18:01:28,066 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-23 18:01:28,066 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 18:01:28,066 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 18:01:28,066 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 18:01:28,066 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 18:01:28,067 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 18:01:28,106 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states. [2021-02-23 18:01:28,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-02-23 18:01:28,124 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:01:28,125 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 18:01:28,126 INFO L428 AbstractCegarLoop]: === Iteration 1 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:01:28,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:01:28,132 INFO L82 PathProgramCache]: Analyzing trace with hash -307813688, now seen corresponding path program 1 times [2021-02-23 18:01:28,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:01:28,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2081036144] [2021-02-23 18:01:28,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:01:28,232 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:01:28,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:28,459 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:28,460 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:28,462 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:28,463 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:28,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:01:28,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:28,517 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:28,518 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:28,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 18:01:28,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:28,595 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:28,596 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:28,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:01:28,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:28,701 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:28,703 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:28,704 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:28,705 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:28,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 18:01:28,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:28,749 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:28,750 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:28,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:01:28,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:28,786 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:28,787 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:28,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:01:28,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:28,798 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:28,799 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:28,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-23 18:01:28,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:28,824 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:28,825 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:28,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:01:28,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:28,841 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:28,842 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:28,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:01:28,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:28,852 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:28,853 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:28,892 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-02-23 18:01:28,895 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2081036144] [2021-02-23 18:01:28,897 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:01:28,897 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 18:01:28,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796516869] [2021-02-23 18:01:28,903 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 18:01:28,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:01:28,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 18:01:28,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 18:01:28,920 INFO L87 Difference]: Start difference. First operand 281 states. Second operand 4 states. [2021-02-23 18:01:29,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:01:29,617 INFO L93 Difference]: Finished difference Result 573 states and 772 transitions. [2021-02-23 18:01:29,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-23 18:01:29,619 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 89 [2021-02-23 18:01:29,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:01:29,634 INFO L225 Difference]: With dead ends: 573 [2021-02-23 18:01:29,634 INFO L226 Difference]: Without dead ends: 279 [2021-02-23 18:01:29,643 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-23 18:01:29,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2021-02-23 18:01:29,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 259. [2021-02-23 18:01:29,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states. [2021-02-23 18:01:29,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 288 transitions. [2021-02-23 18:01:29,752 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 288 transitions. Word has length 89 [2021-02-23 18:01:29,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:01:29,752 INFO L480 AbstractCegarLoop]: Abstraction has 259 states and 288 transitions. [2021-02-23 18:01:29,753 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 18:01:29,753 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 288 transitions. [2021-02-23 18:01:29,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-02-23 18:01:29,765 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:01:29,765 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 18:01:29,766 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 18:01:29,766 INFO L428 AbstractCegarLoop]: === Iteration 2 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:01:29,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:01:29,770 INFO L82 PathProgramCache]: Analyzing trace with hash -206201793, now seen corresponding path program 1 times [2021-02-23 18:01:29,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:01:29,772 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1649671196] [2021-02-23 18:01:29,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:01:29,784 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:01:29,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:29,898 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:29,898 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:29,899 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:29,900 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:01:29,903 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:29,904 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:01:29,908 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:29,909 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:01:29,914 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:29,915 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:01:29,920 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:29,921 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:01:29,927 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:29,928 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:01:29,935 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:29,936 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:29,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:01:29,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:29,968 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:29,969 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:29,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 18:01:30,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:30,036 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:30,036 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:30,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:01:30,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:30,084 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:30,085 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:01:30,099 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:30,100 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-23 18:01:30,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 18:01:30,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:30,164 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:30,165 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:30,168 WARN L141 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size [2021-02-23 18:01:30,169 WARN L147 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size 17 [2021-02-23 18:01:30,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:01:30,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:30,206 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:30,207 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:30,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:01:30,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:30,214 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:30,214 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:30,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-23 18:01:30,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:30,233 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:30,234 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:30,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:01:30,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:30,244 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:30,245 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:30,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:01:30,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:30,254 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:30,254 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:30,302 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-02-23 18:01:30,302 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1649671196] [2021-02-23 18:01:30,303 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:01:30,303 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-02-23 18:01:30,303 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959641143] [2021-02-23 18:01:30,304 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-23 18:01:30,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:01:30,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-23 18:01:30,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2021-02-23 18:01:30,306 INFO L87 Difference]: Start difference. First operand 259 states and 288 transitions. Second operand 13 states. [2021-02-23 18:01:32,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:01:32,052 INFO L93 Difference]: Finished difference Result 546 states and 625 transitions. [2021-02-23 18:01:32,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-23 18:01:32,053 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 91 [2021-02-23 18:01:32,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:01:32,059 INFO L225 Difference]: With dead ends: 546 [2021-02-23 18:01:32,059 INFO L226 Difference]: Without dead ends: 300 [2021-02-23 18:01:32,062 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2021-02-23 18:01:32,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2021-02-23 18:01:32,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 280. [2021-02-23 18:01:32,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2021-02-23 18:01:32,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 311 transitions. [2021-02-23 18:01:32,115 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 311 transitions. Word has length 91 [2021-02-23 18:01:32,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:01:32,115 INFO L480 AbstractCegarLoop]: Abstraction has 280 states and 311 transitions. [2021-02-23 18:01:32,116 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-02-23 18:01:32,116 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 311 transitions. [2021-02-23 18:01:32,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2021-02-23 18:01:32,119 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:01:32,119 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 18:01:32,119 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 18:01:32,120 INFO L428 AbstractCegarLoop]: === Iteration 3 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:01:32,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:01:32,120 INFO L82 PathProgramCache]: Analyzing trace with hash 1644354155, now seen corresponding path program 1 times [2021-02-23 18:01:32,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:01:32,121 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1964102447] [2021-02-23 18:01:32,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:01:32,129 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:01:32,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:32,286 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:32,287 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:32,288 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:32,289 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:01:32,293 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:32,293 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:01:32,298 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:32,299 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:01:32,304 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:32,305 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:01:32,310 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:32,311 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:01:32,317 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:32,317 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:01:32,324 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:32,324 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:32,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:01:32,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:32,353 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:32,353 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:32,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 18:01:32,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:32,549 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:32,550 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:32,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:01:32,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:32,746 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:32,747 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:32,748 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:32,749 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 18:01:32,760 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:32,761 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-23 18:01:32,777 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:32,778 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:32,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 18:01:32,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:32,832 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:32,833 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:01:32,847 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:32,848 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 18:01:32,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:01:32,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:32,930 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:32,931 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:01:32,947 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:32,949 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-23 18:01:32,968 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:32,973 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-23 18:01:32,994 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:32,995 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 18:01:33,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:01:33,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:33,042 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:33,043 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:01:33,059 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:33,061 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:01:33,079 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:33,080 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:01:33,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-23 18:01:33,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:33,149 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:33,150 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:33,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:01:33,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:33,173 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:33,174 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:33,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 18:01:33,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:33,185 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:33,186 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:33,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:01:33,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:33,198 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:33,198 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:33,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:01:33,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:33,206 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:33,207 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:33,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-23 18:01:33,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:33,220 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:33,221 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:33,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:01:33,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:33,231 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:33,232 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:33,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:01:33,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:33,240 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:33,241 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:33,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-02-23 18:01:33,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:33,402 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:33,402 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:33,403 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:33,407 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:33,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:01:33,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:33,495 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:33,496 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:33,496 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:33,497 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:33,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:01:33,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:33,504 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:33,505 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:33,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-23 18:01:33,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:33,551 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:33,552 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:33,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:01:33,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:33,596 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:33,597 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:33,598 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:33,599 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 18:01:33,600 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:33,601 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-23 18:01:33,602 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:33,603 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:33,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 18:01:33,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:33,623 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:33,624 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:01:33,625 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:33,626 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 18:01:33,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:01:33,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:33,646 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:33,647 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:01:33,673 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:33,674 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-23 18:01:33,704 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:33,705 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-23 18:01:33,734 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:33,735 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 18:01:33,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:01:33,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:33,770 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:33,771 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:01:33,794 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:33,794 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:01:33,818 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:33,819 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:01:33,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-23 18:01:33,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:33,867 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:33,868 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-23 18:01:33,898 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:33,899 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-23 18:01:33,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:01:33,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:33,959 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:33,960 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-23 18:01:33,996 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:33,997 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-23 18:01:34,044 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:34,045 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-02-23 18:01:34,098 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:34,099 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-02-23 18:01:34,154 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:34,156 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-23 18:01:34,202 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:34,204 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-23 18:01:34,251 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:34,252 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-23 18:01:34,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:01:34,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:34,354 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:34,355 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-23 18:01:34,392 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:34,392 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-23 18:01:34,433 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:34,434 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-23 18:01:34,478 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:34,479 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-23 18:01:34,481 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:34,482 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-02-23 18:01:34,992 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 115 proven. 38 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-02-23 18:01:34,992 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1964102447] [2021-02-23 18:01:34,992 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:01:34,993 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [41] imperfect sequences [] total 41 [2021-02-23 18:01:34,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720327977] [2021-02-23 18:01:34,993 INFO L460 AbstractCegarLoop]: Interpolant automaton has 41 states [2021-02-23 18:01:34,994 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:01:34,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-02-23 18:01:34,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=1540, Unknown=0, NotChecked=0, Total=1640 [2021-02-23 18:01:34,997 INFO L87 Difference]: Start difference. First operand 280 states and 311 transitions. Second operand 41 states. [2021-02-23 18:01:41,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:01:41,443 INFO L93 Difference]: Finished difference Result 578 states and 659 transitions. [2021-02-23 18:01:41,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-02-23 18:01:41,449 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 239 [2021-02-23 18:01:41,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:01:41,454 INFO L225 Difference]: With dead ends: 578 [2021-02-23 18:01:41,454 INFO L226 Difference]: Without dead ends: 315 [2021-02-23 18:01:41,459 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 914 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=341, Invalid=5061, Unknown=0, NotChecked=0, Total=5402 [2021-02-23 18:01:41,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2021-02-23 18:01:41,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 290. [2021-02-23 18:01:41,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2021-02-23 18:01:41,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 323 transitions. [2021-02-23 18:01:41,504 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 323 transitions. Word has length 239 [2021-02-23 18:01:41,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:01:41,504 INFO L480 AbstractCegarLoop]: Abstraction has 290 states and 323 transitions. [2021-02-23 18:01:41,505 INFO L481 AbstractCegarLoop]: Interpolant automaton has 41 states. [2021-02-23 18:01:41,505 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 323 transitions. [2021-02-23 18:01:41,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2021-02-23 18:01:41,507 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:01:41,508 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 18:01:41,508 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 18:01:41,508 INFO L428 AbstractCegarLoop]: === Iteration 4 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:01:41,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:01:41,509 INFO L82 PathProgramCache]: Analyzing trace with hash 1822223879, now seen corresponding path program 1 times [2021-02-23 18:01:41,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:01:41,510 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [840057394] [2021-02-23 18:01:41,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:01:41,516 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:01:41,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:41,638 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:41,641 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:41,642 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:41,642 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:01:41,645 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:41,645 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:01:41,648 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:41,649 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:01:41,652 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:41,653 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:01:41,661 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:41,662 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:01:41,667 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:41,667 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:01:41,674 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:41,675 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:41,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:01:41,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:41,699 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:41,700 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:41,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 18:01:41,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:41,912 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:41,913 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:41,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:01:41,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:42,033 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:42,035 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:42,036 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:42,038 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:42,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 18:01:42,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:42,069 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:42,070 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:42,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:01:42,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:42,102 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:42,103 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:42,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:01:42,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:42,109 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:42,109 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:42,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-23 18:01:42,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:42,129 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:42,130 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:42,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:01:42,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:42,149 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:42,150 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:42,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 18:01:42,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:42,161 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:42,161 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:42,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:01:42,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:42,171 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:42,172 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:42,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:01:42,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:42,178 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:42,178 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:42,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-23 18:01:42,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:42,189 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:42,190 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:42,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:01:42,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:42,198 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:42,199 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:42,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:01:42,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:42,206 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:42,207 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:42,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-23 18:01:42,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:42,311 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:42,312 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:42,312 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:42,313 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:42,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:01:42,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:42,371 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:42,372 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:42,373 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:42,373 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:42,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:01:42,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:42,379 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:42,380 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:42,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-23 18:01:42,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:42,425 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:42,425 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:42,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:01:42,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:42,465 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:42,466 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:42,467 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:42,468 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 18:01:42,479 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:42,479 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-23 18:01:42,496 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:42,497 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:42,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 18:01:42,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:42,527 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:42,529 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-23 18:01:42,546 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:42,547 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-23 18:01:42,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:01:42,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:42,593 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:42,594 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-23 18:01:42,615 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:42,616 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-23 18:01:42,647 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:42,648 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-23 18:01:42,686 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:42,689 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-23 18:01:42,729 WARN L141 QuantifierPusher]: treesize reduction 13, result has 68.3 percent of original size [2021-02-23 18:01:42,730 WARN L147 QuantifierPusher]: treesize reduction 13, result has 68.3 percent of original size 28 [2021-02-23 18:01:42,764 WARN L141 QuantifierPusher]: treesize reduction 10, result has 77.3 percent of original size [2021-02-23 18:01:42,765 WARN L147 QuantifierPusher]: treesize reduction 10, result has 77.3 percent of original size 34 [2021-02-23 18:01:42,837 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:42,838 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-23 18:01:42,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:01:42,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:42,895 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:42,896 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-23 18:01:42,920 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:42,922 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-23 18:01:42,948 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:42,949 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-23 18:01:42,981 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:42,982 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-23 18:01:42,985 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:42,988 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 159 [2021-02-23 18:01:43,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-23 18:01:43,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:43,171 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:43,172 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:43,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:01:43,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:43,183 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:43,184 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:43,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:01:43,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:43,189 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:43,190 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:43,639 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 68 proven. 21 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2021-02-23 18:01:43,639 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [840057394] [2021-02-23 18:01:43,640 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:01:43,640 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-02-23 18:01:43,640 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46686434] [2021-02-23 18:01:43,641 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-02-23 18:01:43,641 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:01:43,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-02-23 18:01:43,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=541, Unknown=0, NotChecked=0, Total=600 [2021-02-23 18:01:43,642 INFO L87 Difference]: Start difference. First operand 290 states and 323 transitions. Second operand 25 states. [2021-02-23 18:01:44,815 WARN L202 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 43 [2021-02-23 18:01:45,111 WARN L202 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2021-02-23 18:01:45,397 WARN L202 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-02-23 18:01:45,625 WARN L202 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2021-02-23 18:01:48,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:01:48,352 INFO L93 Difference]: Finished difference Result 581 states and 656 transitions. [2021-02-23 18:01:48,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-02-23 18:01:48,352 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 243 [2021-02-23 18:01:48,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:01:48,356 INFO L225 Difference]: With dead ends: 581 [2021-02-23 18:01:48,356 INFO L226 Difference]: Without dead ends: 310 [2021-02-23 18:01:48,358 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=128, Invalid=1132, Unknown=0, NotChecked=0, Total=1260 [2021-02-23 18:01:48,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2021-02-23 18:01:48,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 290. [2021-02-23 18:01:48,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2021-02-23 18:01:48,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 321 transitions. [2021-02-23 18:01:48,395 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 321 transitions. Word has length 243 [2021-02-23 18:01:48,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:01:48,396 INFO L480 AbstractCegarLoop]: Abstraction has 290 states and 321 transitions. [2021-02-23 18:01:48,396 INFO L481 AbstractCegarLoop]: Interpolant automaton has 25 states. [2021-02-23 18:01:48,396 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 321 transitions. [2021-02-23 18:01:48,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2021-02-23 18:01:48,399 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:01:48,400 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 18:01:48,400 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-23 18:01:48,400 INFO L428 AbstractCegarLoop]: === Iteration 5 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:01:48,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:01:48,401 INFO L82 PathProgramCache]: Analyzing trace with hash -1985515759, now seen corresponding path program 1 times [2021-02-23 18:01:48,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:01:48,401 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [945171633] [2021-02-23 18:01:48,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:01:48,407 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:01:48,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:48,504 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:48,505 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:48,505 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:48,506 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:01:48,508 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:48,509 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:01:48,512 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:48,512 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:01:48,516 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:48,516 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:01:48,520 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:48,521 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:01:48,526 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:48,526 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:01:48,533 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:48,534 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:48,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:01:48,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:48,557 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:48,558 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:48,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 18:01:48,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:48,727 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:48,727 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:48,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:01:48,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:48,910 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:48,911 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:48,911 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:48,912 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 18:01:48,922 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:48,923 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-23 18:01:48,937 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:48,937 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:48,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 18:01:48,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:49,001 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:49,002 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:01:49,015 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:49,015 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 18:01:49,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:01:49,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:49,062 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:49,062 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:01:49,077 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:49,078 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-23 18:01:49,102 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:49,103 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-23 18:01:49,122 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:49,122 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 18:01:49,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:01:49,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:49,147 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:49,147 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:01:49,161 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:49,162 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:01:49,177 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:49,177 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:01:49,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-23 18:01:49,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:49,217 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:49,218 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:49,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:01:49,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:49,233 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:49,233 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:49,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 18:01:49,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:49,241 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:49,241 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:49,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:01:49,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:49,248 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:49,248 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:49,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:01:49,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:49,253 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:49,253 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:49,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-23 18:01:49,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:49,263 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:49,263 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:49,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:01:49,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:49,270 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:49,271 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:49,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:01:49,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:49,276 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:49,277 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:49,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 18:01:49,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:49,372 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:49,374 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-23 18:01:49,396 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:49,396 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-23 18:01:49,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:01:49,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:49,463 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:49,464 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-23 18:01:49,489 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:49,490 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-23 18:01:49,524 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:49,525 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-02-23 18:01:49,566 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:49,567 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-02-23 18:01:49,608 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:49,609 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-23 18:01:49,644 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:49,645 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-23 18:01:49,684 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:49,685 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-23 18:01:49,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:01:49,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:49,746 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:49,749 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-23 18:01:49,790 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:49,791 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-23 18:01:49,826 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:49,827 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-23 18:01:49,860 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:49,861 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-23 18:01:49,862 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:49,862 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-23 18:01:49,872 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:49,873 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 244 [2021-02-23 18:01:50,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-23 18:01:50,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:50,040 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:50,040 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:50,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:01:50,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:50,057 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:50,058 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:50,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 18:01:50,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:50,067 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:50,068 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:50,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:01:50,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:50,075 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:50,076 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:50,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:01:50,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:50,081 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:50,082 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:50,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-23 18:01:50,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:50,093 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:50,094 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:50,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:01:50,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:50,102 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:50,102 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:50,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:01:50,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:50,108 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:50,108 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:50,490 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 2 proven. 23 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2021-02-23 18:01:50,490 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [945171633] [2021-02-23 18:01:50,491 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:01:50,491 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-02-23 18:01:50,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985127502] [2021-02-23 18:01:50,492 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-02-23 18:01:50,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:01:50,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-02-23 18:01:50,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=1038, Unknown=0, NotChecked=0, Total=1122 [2021-02-23 18:01:50,493 INFO L87 Difference]: Start difference. First operand 290 states and 321 transitions. Second operand 34 states. [2021-02-23 18:01:52,170 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 41 [2021-02-23 18:01:52,375 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2021-02-23 18:01:52,569 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 41 [2021-02-23 18:01:56,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:01:56,485 INFO L93 Difference]: Finished difference Result 592 states and 663 transitions. [2021-02-23 18:01:56,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-02-23 18:01:56,486 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 241 [2021-02-23 18:01:56,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:01:56,490 INFO L225 Difference]: With dead ends: 592 [2021-02-23 18:01:56,491 INFO L226 Difference]: Without dead ends: 321 [2021-02-23 18:01:56,493 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 482 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=270, Invalid=3036, Unknown=0, NotChecked=0, Total=3306 [2021-02-23 18:01:56,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2021-02-23 18:01:56,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 299. [2021-02-23 18:01:56,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2021-02-23 18:01:56,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 331 transitions. [2021-02-23 18:01:56,532 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 331 transitions. Word has length 241 [2021-02-23 18:01:56,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:01:56,532 INFO L480 AbstractCegarLoop]: Abstraction has 299 states and 331 transitions. [2021-02-23 18:01:56,532 INFO L481 AbstractCegarLoop]: Interpolant automaton has 34 states. [2021-02-23 18:01:56,533 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 331 transitions. [2021-02-23 18:01:56,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2021-02-23 18:01:56,536 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:01:56,536 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 18:01:56,536 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-23 18:01:56,537 INFO L428 AbstractCegarLoop]: === Iteration 6 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:01:56,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:01:56,537 INFO L82 PathProgramCache]: Analyzing trace with hash -159569349, now seen corresponding path program 1 times [2021-02-23 18:01:56,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:01:56,537 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [137184645] [2021-02-23 18:01:56,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:01:56,542 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:01:56,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:56,646 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:56,647 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:56,647 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:56,648 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:01:56,651 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:56,651 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:01:56,654 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:56,655 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:01:56,659 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:56,660 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:01:56,665 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:56,665 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:01:56,671 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:56,671 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:01:56,677 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:56,677 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:56,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:01:56,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:56,701 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:56,702 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:56,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 18:01:56,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:56,843 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:56,844 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:56,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:01:56,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:56,942 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:56,943 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:56,943 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:56,943 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 18:01:56,953 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:56,954 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-23 18:01:56,972 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:56,972 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:56,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 18:01:56,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:57,064 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:57,065 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-23 18:01:57,082 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:57,082 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-23 18:01:57,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:01:57,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:57,153 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:57,154 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-23 18:01:57,175 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:57,175 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-23 18:01:57,209 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:57,210 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-23 18:01:57,252 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:57,253 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-23 18:01:57,293 WARN L141 QuantifierPusher]: treesize reduction 13, result has 68.3 percent of original size [2021-02-23 18:01:57,294 WARN L147 QuantifierPusher]: treesize reduction 13, result has 68.3 percent of original size 28 [2021-02-23 18:01:57,326 WARN L141 QuantifierPusher]: treesize reduction 10, result has 77.3 percent of original size [2021-02-23 18:01:57,327 WARN L147 QuantifierPusher]: treesize reduction 10, result has 77.3 percent of original size 34 [2021-02-23 18:01:57,366 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:57,367 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-23 18:01:57,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:01:57,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:57,429 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:57,430 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-23 18:01:57,457 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:57,457 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-23 18:01:57,487 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:57,487 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-23 18:01:57,522 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:57,522 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-23 18:01:57,523 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:57,523 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-23 18:01:57,526 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:57,528 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 487 [2021-02-23 18:01:57,874 WARN L202 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2021-02-23 18:01:57,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-23 18:01:57,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:57,901 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:57,902 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:57,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:01:57,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:57,917 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:57,918 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:57,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 18:01:57,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:57,925 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:57,926 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:57,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:01:57,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:57,933 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:57,934 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:57,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:01:57,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:57,938 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:57,938 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:57,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-23 18:01:57,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:57,952 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:57,953 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:57,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:01:57,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:57,960 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:57,960 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:57,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:01:57,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:57,965 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:57,965 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:58,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-23 18:01:58,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:58,085 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:58,087 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:58,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:01:58,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:58,123 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:58,123 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:58,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:01:58,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:58,132 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:58,132 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:58,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-23 18:01:58,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:58,164 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:58,165 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:58,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:01:58,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:58,186 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:58,187 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:58,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 18:01:58,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:58,198 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:58,198 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:58,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:01:58,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:58,204 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:58,205 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:58,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:01:58,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:58,210 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:58,210 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:58,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-23 18:01:58,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:58,224 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:58,224 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:58,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:01:58,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:58,235 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:58,236 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:58,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:01:58,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:01:58,242 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:01:58,243 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:01:58,818 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2021-02-23 18:01:58,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [137184645] [2021-02-23 18:01:58,819 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:01:58,819 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-02-23 18:01:58,819 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923741035] [2021-02-23 18:01:58,820 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-02-23 18:01:58,820 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:01:58,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-02-23 18:01:58,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=541, Unknown=0, NotChecked=0, Total=600 [2021-02-23 18:01:58,821 INFO L87 Difference]: Start difference. First operand 299 states and 331 transitions. Second operand 25 states. [2021-02-23 18:01:59,341 WARN L202 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-02-23 18:01:59,705 WARN L202 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-02-23 18:02:00,848 WARN L202 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2021-02-23 18:02:01,515 WARN L202 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-02-23 18:02:02,226 WARN L202 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2021-02-23 18:02:02,813 WARN L202 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-02-23 18:02:06,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:02:06,809 INFO L93 Difference]: Finished difference Result 596 states and 661 transitions. [2021-02-23 18:02:06,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-02-23 18:02:06,810 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 243 [2021-02-23 18:02:06,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:02:06,813 INFO L225 Difference]: With dead ends: 596 [2021-02-23 18:02:06,813 INFO L226 Difference]: Without dead ends: 319 [2021-02-23 18:02:06,815 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=128, Invalid=1132, Unknown=0, NotChecked=0, Total=1260 [2021-02-23 18:02:06,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2021-02-23 18:02:06,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 299. [2021-02-23 18:02:06,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2021-02-23 18:02:06,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 329 transitions. [2021-02-23 18:02:06,852 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 329 transitions. Word has length 243 [2021-02-23 18:02:06,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:02:06,853 INFO L480 AbstractCegarLoop]: Abstraction has 299 states and 329 transitions. [2021-02-23 18:02:06,853 INFO L481 AbstractCegarLoop]: Interpolant automaton has 25 states. [2021-02-23 18:02:06,853 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 329 transitions. [2021-02-23 18:02:06,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2021-02-23 18:02:06,856 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:02:06,857 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 18:02:06,857 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-23 18:02:06,857 INFO L428 AbstractCegarLoop]: === Iteration 7 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:02:06,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:02:06,858 INFO L82 PathProgramCache]: Analyzing trace with hash -279275528, now seen corresponding path program 1 times [2021-02-23 18:02:06,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:02:06,858 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1772104328] [2021-02-23 18:02:06,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:02:06,862 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:02:06,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:06,943 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:06,943 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:06,944 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:06,944 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:02:06,950 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:06,951 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:02:06,954 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:06,954 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:02:06,961 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:06,962 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:02:06,967 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:06,968 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:02:06,974 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:06,975 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:02:06,981 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:06,982 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:07,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:02:07,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:07,010 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:07,010 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:07,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 18:02:07,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:07,242 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:07,242 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:02:07,251 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:07,252 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:02:07,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:02:07,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:07,462 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:07,463 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:07,464 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:07,464 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 18:02:07,480 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:07,481 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:02:07,496 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:07,497 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:02:07,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 18:02:07,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:07,540 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:07,541 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:07,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:02:07,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:07,567 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:07,568 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:07,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:02:07,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:07,574 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:07,575 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:07,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-23 18:02:07,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:07,592 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:07,595 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:07,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:02:07,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:07,616 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:07,617 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:07,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 18:02:07,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:07,624 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:07,625 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:07,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:02:07,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:07,632 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:07,633 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:07,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:02:07,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:07,639 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:07,640 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:07,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-23 18:02:07,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:07,651 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:07,652 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:07,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:02:07,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:07,661 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:07,662 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:07,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:02:07,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:07,666 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:07,667 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:07,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 18:02:07,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:07,751 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:07,752 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:02:07,769 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:07,770 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 18:02:07,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:02:07,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:07,842 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:07,843 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:02:07,863 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:07,863 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-23 18:02:07,887 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:07,888 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-23 18:02:07,913 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:07,914 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 18:02:07,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:02:07,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:07,944 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:07,945 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:02:07,965 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:07,966 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:02:07,988 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:07,989 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:02:08,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-23 18:02:08,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:08,032 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:08,033 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:08,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:02:08,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:08,053 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:08,053 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:08,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 18:02:08,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:08,068 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:08,068 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:08,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:02:08,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:08,075 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:08,076 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:08,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:02:08,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:08,081 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:08,082 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:08,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-23 18:02:08,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:08,090 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:08,091 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:08,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:02:08,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:08,099 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:08,100 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:08,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:02:08,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:08,105 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:08,105 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:08,357 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2021-02-23 18:02:08,357 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1772104328] [2021-02-23 18:02:08,357 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:02:08,357 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-02-23 18:02:08,357 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621853090] [2021-02-23 18:02:08,358 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-02-23 18:02:08,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:02:08,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-02-23 18:02:08,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=505, Unknown=0, NotChecked=0, Total=552 [2021-02-23 18:02:08,359 INFO L87 Difference]: Start difference. First operand 299 states and 329 transitions. Second operand 24 states. [2021-02-23 18:02:12,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:02:12,011 INFO L93 Difference]: Finished difference Result 531 states and 594 transitions. [2021-02-23 18:02:12,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-02-23 18:02:12,013 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 242 [2021-02-23 18:02:12,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:02:12,018 INFO L225 Difference]: With dead ends: 531 [2021-02-23 18:02:12,018 INFO L226 Difference]: Without dead ends: 421 [2021-02-23 18:02:12,020 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=169, Invalid=1811, Unknown=0, NotChecked=0, Total=1980 [2021-02-23 18:02:12,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2021-02-23 18:02:12,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 336. [2021-02-23 18:02:12,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2021-02-23 18:02:12,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 371 transitions. [2021-02-23 18:02:12,078 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 371 transitions. Word has length 242 [2021-02-23 18:02:12,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:02:12,079 INFO L480 AbstractCegarLoop]: Abstraction has 336 states and 371 transitions. [2021-02-23 18:02:12,079 INFO L481 AbstractCegarLoop]: Interpolant automaton has 24 states. [2021-02-23 18:02:12,080 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 371 transitions. [2021-02-23 18:02:12,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2021-02-23 18:02:12,083 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:02:12,083 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 18:02:12,083 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-23 18:02:12,084 INFO L428 AbstractCegarLoop]: === Iteration 8 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:02:12,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:02:12,084 INFO L82 PathProgramCache]: Analyzing trace with hash 1639303553, now seen corresponding path program 1 times [2021-02-23 18:02:12,084 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:02:12,084 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1389893938] [2021-02-23 18:02:12,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:02:12,089 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:02:12,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:12,536 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:12,537 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:12,537 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:12,538 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 18:02:12,541 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:12,542 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 18:02:12,547 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:12,547 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 18:02:12,553 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:12,553 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 18:02:12,559 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:12,560 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 18:02:12,567 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:12,568 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 18:02:12,576 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:12,576 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:02:12,585 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:12,586 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:12,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:02:12,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:12,613 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:12,613 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:12,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 18:02:12,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:12,965 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:12,966 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 18:02:12,977 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:12,978 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 18:02:12,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:02:13,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:13,307 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:13,307 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:13,308 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:13,308 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 18:02:13,323 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:13,324 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-23 18:02:13,348 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:13,349 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-23 18:02:13,366 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:13,367 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 18:02:13,385 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:13,385 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 18:02:13,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 18:02:13,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:13,455 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:13,455 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:02:13,475 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:13,476 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-23 18:02:13,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:02:13,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:13,552 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:13,553 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:02:13,577 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:13,578 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-23 18:02:13,616 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:13,617 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-23 18:02:13,657 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:13,658 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-23 18:02:13,691 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:13,692 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-23 18:02:13,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:02:13,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:13,733 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:13,734 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-23 18:02:13,769 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:13,770 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-23 18:02:13,806 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:13,806 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-23 18:02:13,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-23 18:02:13,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:13,943 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:13,944 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 922 [2021-02-23 18:02:14,105 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:14,106 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 922 [2021-02-23 18:02:14,108 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:14,109 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 922 [2021-02-23 18:02:14,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:02:14,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:14,354 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:14,355 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:02:14,387 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:14,388 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-23 18:02:14,440 WARN L141 QuantifierPusher]: treesize reduction 390, result has 71.1 percent of original size [2021-02-23 18:02:14,443 WARN L147 QuantifierPusher]: treesize reduction 390, result has 71.1 percent of original size 961 [2021-02-23 18:02:14,738 WARN L141 QuantifierPusher]: treesize reduction 1031, result has 28.2 percent of original size [2021-02-23 18:02:14,739 WARN L147 QuantifierPusher]: treesize reduction 1031, result has 28.2 percent of original size 404 [2021-02-23 18:02:15,004 WARN L141 QuantifierPusher]: treesize reduction 1031, result has 28.2 percent of original size [2021-02-23 18:02:15,006 WARN L147 QuantifierPusher]: treesize reduction 1031, result has 28.2 percent of original size 404 [2021-02-23 18:02:15,013 WARN L141 QuantifierPusher]: treesize reduction 1031, result has 28.2 percent of original size [2021-02-23 18:02:15,014 WARN L147 QuantifierPusher]: treesize reduction 1031, result has 28.2 percent of original size 404 [2021-02-23 18:02:15,025 WARN L141 QuantifierPusher]: treesize reduction 1031, result has 28.2 percent of original size [2021-02-23 18:02:15,026 WARN L147 QuantifierPusher]: treesize reduction 1031, result has 28.2 percent of original size 404 [2021-02-23 18:02:15,034 WARN L141 QuantifierPusher]: treesize reduction 1031, result has 28.2 percent of original size [2021-02-23 18:02:15,038 WARN L147 QuantifierPusher]: treesize reduction 1031, result has 28.2 percent of original size 404 [2021-02-23 18:02:15,045 WARN L141 QuantifierPusher]: treesize reduction 1031, result has 28.2 percent of original size [2021-02-23 18:02:15,046 WARN L147 QuantifierPusher]: treesize reduction 1031, result has 28.2 percent of original size 404 [2021-02-23 18:02:15,051 WARN L141 QuantifierPusher]: treesize reduction 1031, result has 28.2 percent of original size [2021-02-23 18:02:15,052 WARN L147 QuantifierPusher]: treesize reduction 1031, result has 28.2 percent of original size 404 [2021-02-23 18:02:15,081 WARN L141 QuantifierPusher]: treesize reduction 37270, result has 29.9 percent of original size [2021-02-23 18:02:15,093 WARN L147 QuantifierPusher]: treesize reduction 37270, result has 29.9 percent of original size 15921 [2021-02-23 18:02:15,873 WARN L202 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 21 [2021-02-23 18:02:15,894 WARN L141 QuantifierPusher]: treesize reduction 25001, result has 38.9 percent of original size [2021-02-23 18:02:15,902 WARN L147 QuantifierPusher]: treesize reduction 25001, result has 38.9 percent of original size 15921 [2021-02-23 18:02:15,924 WARN L141 QuantifierPusher]: treesize reduction 37270, result has 29.9 percent of original size [2021-02-23 18:02:15,931 WARN L147 QuantifierPusher]: treesize reduction 37270, result has 29.9 percent of original size 15921 [2021-02-23 18:02:15,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 18:02:15,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:15,956 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:15,956 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:02:15,958 WARN L141 QuantifierPusher]: treesize reduction 16, result has 74.2 percent of original size [2021-02-23 18:02:15,958 WARN L147 QuantifierPusher]: treesize reduction 16, result has 74.2 percent of original size 46 [2021-02-23 18:02:16,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:02:16,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:16,062 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:16,063 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:02:16,064 WARN L141 QuantifierPusher]: treesize reduction 5, result has 90.2 percent of original size [2021-02-23 18:02:16,065 WARN L147 QuantifierPusher]: treesize reduction 5, result has 90.2 percent of original size 46 [2021-02-23 18:02:16,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:02:16,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:16,077 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:16,077 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-02-23 18:02:16,152 WARN L141 QuantifierPusher]: treesize reduction 5, result has 90.2 percent of original size [2021-02-23 18:02:16,153 WARN L147 QuantifierPusher]: treesize reduction 5, result has 90.2 percent of original size 46 [2021-02-23 18:02:16,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-23 18:02:16,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:16,215 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:16,215 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:02:16,218 WARN L141 QuantifierPusher]: treesize reduction 150, result has 87.6 percent of original size [2021-02-23 18:02:16,219 WARN L147 QuantifierPusher]: treesize reduction 150, result has 87.6 percent of original size 1059 [2021-02-23 18:02:16,521 WARN L141 QuantifierPusher]: treesize reduction 150, result has 87.6 percent of original size [2021-02-23 18:02:16,522 WARN L147 QuantifierPusher]: treesize reduction 150, result has 87.6 percent of original size 1059 [2021-02-23 18:02:16,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:02:16,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:16,860 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:16,862 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:02:16,864 WARN L141 QuantifierPusher]: treesize reduction 5, result has 90.2 percent of original size [2021-02-23 18:02:16,865 WARN L147 QuantifierPusher]: treesize reduction 5, result has 90.2 percent of original size 46 [2021-02-23 18:02:16,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:02:16,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:16,892 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:16,893 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-02-23 18:02:16,894 WARN L141 QuantifierPusher]: treesize reduction 5, result has 90.2 percent of original size [2021-02-23 18:02:16,894 WARN L147 QuantifierPusher]: treesize reduction 5, result has 90.2 percent of original size 46 [2021-02-23 18:02:17,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 18:02:17,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:17,168 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:17,169 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-23 18:02:17,230 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:17,231 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-02-23 18:02:17,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:02:17,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:17,388 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:17,389 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-23 18:02:17,494 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:17,494 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-23 18:02:17,571 WARN L141 QuantifierPusher]: treesize reduction 11, result has 80.4 percent of original size [2021-02-23 18:02:17,572 WARN L147 QuantifierPusher]: treesize reduction 11, result has 80.4 percent of original size 45 [2021-02-23 18:02:17,672 WARN L141 QuantifierPusher]: treesize reduction 11, result has 82.5 percent of original size [2021-02-23 18:02:17,672 WARN L147 QuantifierPusher]: treesize reduction 11, result has 82.5 percent of original size 52 [2021-02-23 18:02:17,782 WARN L141 QuantifierPusher]: treesize reduction 15, result has 80.3 percent of original size [2021-02-23 18:02:17,783 WARN L147 QuantifierPusher]: treesize reduction 15, result has 80.3 percent of original size 61 [2021-02-23 18:02:17,902 WARN L141 QuantifierPusher]: treesize reduction 24, result has 76.5 percent of original size [2021-02-23 18:02:17,903 WARN L147 QuantifierPusher]: treesize reduction 24, result has 76.5 percent of original size 78 [2021-02-23 18:02:18,059 WARN L141 QuantifierPusher]: treesize reduction 26, result has 69.0 percent of original size [2021-02-23 18:02:18,061 WARN L147 QuantifierPusher]: treesize reduction 26, result has 69.0 percent of original size 58 [2021-02-23 18:02:18,201 WARN L141 QuantifierPusher]: treesize reduction 14, result has 79.1 percent of original size [2021-02-23 18:02:18,201 WARN L147 QuantifierPusher]: treesize reduction 14, result has 79.1 percent of original size 53 [2021-02-23 18:02:18,340 WARN L141 QuantifierPusher]: treesize reduction 3, result has 95.3 percent of original size [2021-02-23 18:02:18,341 WARN L147 QuantifierPusher]: treesize reduction 3, result has 95.3 percent of original size 61 [2021-02-23 18:02:18,425 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:18,426 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-02-23 18:02:18,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:02:18,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:18,521 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:18,522 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-23 18:02:18,595 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:18,595 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-23 18:02:18,677 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:18,679 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-02-23 18:02:18,767 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:18,768 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-02-23 18:02:18,769 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:18,769 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-02-23 18:02:18,771 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:18,772 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 259 [2021-02-23 18:02:19,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-23 18:02:19,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:19,281 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:19,282 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 221467 [2021-02-23 18:02:20,540 WARN L202 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-02-23 18:02:20,543 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:20,544 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 221467 [2021-02-23 18:02:20,546 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:20,548 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 221467 [2021-02-23 18:02:20,550 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:20,551 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 221467 [2021-02-23 18:02:20,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:02:20,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat