/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-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-21 20:34:14,763 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-21 20:34:14,766 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-21 20:34:14,801 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-21 20:34:14,802 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-21 20:34:14,803 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-21 20:34:14,805 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-21 20:34:14,808 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-21 20:34:14,810 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-21 20:34:14,811 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-21 20:34:14,812 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-21 20:34:14,813 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-21 20:34:14,814 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-21 20:34:14,815 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-21 20:34:14,817 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-21 20:34:14,818 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-21 20:34:14,819 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-21 20:34:14,820 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-21 20:34:14,822 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-21 20:34:14,825 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-21 20:34:14,827 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-21 20:34:14,831 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-21 20:34:14,833 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-21 20:34:14,834 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-21 20:34:14,881 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-21 20:34:14,881 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-21 20:34:14,882 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-21 20:34:14,886 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-21 20:34:14,887 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-21 20:34:14,891 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-21 20:34:14,892 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-21 20:34:14,893 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-21 20:34:14,896 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-21 20:34:14,897 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-21 20:34:14,900 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-21 20:34:14,901 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-21 20:34:14,902 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-21 20:34:14,902 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-21 20:34:14,902 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-21 20:34:14,903 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-21 20:34:14,904 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-21 20:34:14,905 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-21 20:34:14,918 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-21 20:34:14,918 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-21 20:34:14,920 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-21 20:34:14,920 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-21 20:34:14,920 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-21 20:34:14,920 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-21 20:34:14,920 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-21 20:34:14,921 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-21 20:34:14,921 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-21 20:34:14,921 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-21 20:34:14,921 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-21 20:34:14,922 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-21 20:34:14,922 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-21 20:34:14,922 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-21 20:34:14,922 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-21 20:34:14,923 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-21 20:34:14,923 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-21 20:34:14,923 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-21 20:34:14,923 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 20:34:14,924 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-21 20:34:14,924 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-21 20:34:14,924 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-21 20:34:14,924 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-21 20:34:15,306 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-21 20:34:15,339 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-21 20:34:15,343 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-21 20:34:15,345 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-21 20:34:15,346 INFO L275 PluginConnector]: CDTParser initialized [2021-02-21 20:34:15,347 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/dll_of_dll-2.i [2021-02-21 20:34:15,437 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87ceb28ca/97101f2d4ff14c66988d38724ed14234/FLAGd67211042 [2021-02-21 20:34:16,106 INFO L306 CDTParser]: Found 1 translation units. [2021-02-21 20:34:16,106 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-manipulation/dll_of_dll-2.i [2021-02-21 20:34:16,121 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87ceb28ca/97101f2d4ff14c66988d38724ed14234/FLAGd67211042 [2021-02-21 20:34:16,393 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87ceb28ca/97101f2d4ff14c66988d38724ed14234 [2021-02-21 20:34:16,400 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-21 20:34:16,417 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-21 20:34:16,420 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-21 20:34:16,420 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-21 20:34:16,426 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-21 20:34:16,427 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 08:34:16" (1/1) ... [2021-02-21 20:34:16,429 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@247b3a63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:34:16, skipping insertion in model container [2021-02-21 20:34:16,429 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 08:34:16" (1/1) ... [2021-02-21 20:34:16,441 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-21 20:34:16,515 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-21 20:34:16,916 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-2.i[22634,22647] [2021-02-21 20:34:17,025 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 20:34:17,038 INFO L203 MainTranslator]: Completed pre-run [2021-02-21 20:34:17,098 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-2.i[22634,22647] [2021-02-21 20:34:17,134 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 20:34:17,222 INFO L208 MainTranslator]: Completed translation [2021-02-21 20:34:17,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:34:17 WrapperNode [2021-02-21 20:34:17,223 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-21 20:34:17,229 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-21 20:34:17,229 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-21 20:34:17,230 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-21 20:34:17,245 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:34:17" (1/1) ... [2021-02-21 20:34:17,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:34:17" (1/1) ... [2021-02-21 20:34:17,296 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:34:17" (1/1) ... [2021-02-21 20:34:17,297 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:34:17" (1/1) ... [2021-02-21 20:34:17,328 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:34:17" (1/1) ... [2021-02-21 20:34:17,340 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:34:17" (1/1) ... [2021-02-21 20:34:17,345 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:34:17" (1/1) ... [2021-02-21 20:34:17,354 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-21 20:34:17,356 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-21 20:34:17,356 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-21 20:34:17,356 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-21 20:34:17,357 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:34:17" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 20:34:17,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-21 20:34:17,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-21 20:34:17,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-02-21 20:34:17,458 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-21 20:34:17,458 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-02-21 20:34:17,458 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-02-21 20:34:17,458 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2021-02-21 20:34:17,459 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_slave [2021-02-21 20:34:17,459 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_master [2021-02-21 20:34:17,459 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_slave [2021-02-21 20:34:17,459 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_generic [2021-02-21 20:34:17,459 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_slave [2021-02-21 20:34:17,460 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_slave [2021-02-21 20:34:17,460 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_nested_lists [2021-02-21 20:34:17,460 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_reinit_nested_lists [2021-02-21 20:34:17,460 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_master [2021-02-21 20:34:17,460 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_master [2021-02-21 20:34:17,461 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_master [2021-02-21 20:34:17,461 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_base [2021-02-21 20:34:17,461 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_full [2021-02-21 20:34:17,461 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_dangling [2021-02-21 20:34:17,461 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_init [2021-02-21 20:34:17,462 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-21 20:34:17,462 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-21 20:34:17,462 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-21 20:34:17,462 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-02-21 20:34:17,462 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-02-21 20:34:17,463 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-21 20:34:17,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-21 20:34:17,463 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-02-21 20:34:17,463 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-02-21 20:34:17,463 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-02-21 20:34:17,464 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-02-21 20:34:17,464 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-02-21 20:34:17,464 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-02-21 20:34:17,464 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-02-21 20:34:17,464 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-02-21 20:34:17,464 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-02-21 20:34:17,465 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-02-21 20:34:17,465 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-02-21 20:34:17,465 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-02-21 20:34:17,465 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-02-21 20:34:17,465 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-02-21 20:34:17,465 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-02-21 20:34:17,466 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-02-21 20:34:17,466 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-02-21 20:34:17,466 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-02-21 20:34:17,466 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-02-21 20:34:17,466 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-02-21 20:34:17,466 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-02-21 20:34:17,466 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-02-21 20:34:17,467 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-02-21 20:34:17,467 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-02-21 20:34:17,467 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-02-21 20:34:17,467 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-02-21 20:34:17,467 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-02-21 20:34:17,467 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-02-21 20:34:17,468 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-02-21 20:34:17,468 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-02-21 20:34:17,468 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-02-21 20:34:17,468 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-02-21 20:34:17,468 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-02-21 20:34:17,468 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-02-21 20:34:17,469 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-02-21 20:34:17,469 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-02-21 20:34:17,469 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-02-21 20:34:17,469 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-02-21 20:34:17,469 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-02-21 20:34:17,470 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-02-21 20:34:17,470 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-02-21 20:34:17,470 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-02-21 20:34:17,470 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-02-21 20:34:17,470 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-02-21 20:34:17,470 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-02-21 20:34:17,471 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-02-21 20:34:17,471 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-02-21 20:34:17,471 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-02-21 20:34:17,471 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-02-21 20:34:17,471 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-02-21 20:34:17,471 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-02-21 20:34:17,472 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-02-21 20:34:17,472 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-21 20:34:17,472 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-02-21 20:34:17,472 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-02-21 20:34:17,472 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-21 20:34:17,472 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2021-02-21 20:34:17,473 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-02-21 20:34:17,473 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-02-21 20:34:17,473 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-02-21 20:34:17,473 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-02-21 20:34:17,473 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-02-21 20:34:17,473 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-02-21 20:34:17,474 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-02-21 20:34:17,474 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-02-21 20:34:17,474 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-02-21 20:34:17,474 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-02-21 20:34:17,474 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-02-21 20:34:17,474 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-02-21 20:34:17,475 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-02-21 20:34:17,475 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-02-21 20:34:17,475 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-02-21 20:34:17,475 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-02-21 20:34:17,475 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-02-21 20:34:17,475 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-02-21 20:34:17,476 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-02-21 20:34:17,476 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-02-21 20:34:17,476 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-02-21 20:34:17,476 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-02-21 20:34:17,476 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-02-21 20:34:17,476 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-02-21 20:34:17,476 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-02-21 20:34:17,477 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-02-21 20:34:17,477 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-02-21 20:34:17,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-02-21 20:34:17,477 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-02-21 20:34:17,477 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-02-21 20:34:17,477 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-02-21 20:34:17,478 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-02-21 20:34:17,478 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-02-21 20:34:17,478 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-02-21 20:34:17,478 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-02-21 20:34:17,478 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-02-21 20:34:17,478 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-02-21 20:34:17,479 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-02-21 20:34:17,479 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-02-21 20:34:17,479 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-02-21 20:34:17,479 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-02-21 20:34:17,479 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-02-21 20:34:17,479 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-02-21 20:34:17,479 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-02-21 20:34:17,480 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-02-21 20:34:17,480 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-02-21 20:34:17,480 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-02-21 20:34:17,480 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-21 20:34:17,480 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2021-02-21 20:34:17,480 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_slave [2021-02-21 20:34:17,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-21 20:34:17,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-21 20:34:17,481 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_master [2021-02-21 20:34:17,481 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_slave [2021-02-21 20:34:17,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-21 20:34:17,481 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_generic [2021-02-21 20:34:17,482 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-02-21 20:34:17,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-02-21 20:34:17,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-21 20:34:17,482 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_slave [2021-02-21 20:34:17,482 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_slave [2021-02-21 20:34:17,482 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_nested_lists [2021-02-21 20:34:17,483 INFO L130 BoogieDeclarations]: Found specification of procedure dll_reinit_nested_lists [2021-02-21 20:34:17,483 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_master [2021-02-21 20:34:17,483 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_master [2021-02-21 20:34:17,483 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_master [2021-02-21 20:34:17,483 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_base [2021-02-21 20:34:17,483 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_full [2021-02-21 20:34:17,484 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_dangling [2021-02-21 20:34:17,484 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_init [2021-02-21 20:34:17,484 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-21 20:34:17,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-21 20:34:17,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-21 20:34:17,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-21 20:34:17,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-21 20:34:17,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-21 20:34:18,490 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-21 20:34:18,493 INFO L299 CfgBuilder]: Removed 38 assume(true) statements. [2021-02-21 20:34:18,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 08:34:18 BoogieIcfgContainer [2021-02-21 20:34:18,498 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-21 20:34:18,500 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-21 20:34:18,500 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-21 20:34:18,506 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-21 20:34:18,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 08:34:16" (1/3) ... [2021-02-21 20:34:18,508 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f320421 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 08:34:18, skipping insertion in model container [2021-02-21 20:34:18,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:34:17" (2/3) ... [2021-02-21 20:34:18,510 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f320421 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 08:34:18, skipping insertion in model container [2021-02-21 20:34:18,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 08:34:18" (3/3) ... [2021-02-21 20:34:18,512 INFO L111 eAbstractionObserver]: Analyzing ICFG dll_of_dll-2.i [2021-02-21 20:34:18,522 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-21 20:34:18,530 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-21 20:34:18,553 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-21 20:34:18,591 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-21 20:34:18,592 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-21 20:34:18,592 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-21 20:34:18,592 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-21 20:34:18,592 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-21 20:34:18,592 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-21 20:34:18,592 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-21 20:34:18,593 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-21 20:34:18,633 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states. [2021-02-21 20:34:18,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-02-21 20:34:18,652 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 20:34:18,654 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] [2021-02-21 20:34:18,655 INFO L428 AbstractCegarLoop]: === Iteration 1 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 20:34:18,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 20:34:18,664 INFO L82 PathProgramCache]: Analyzing trace with hash -307813688, now seen corresponding path program 1 times [2021-02-21 20:34:18,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 20:34:18,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1473498774] [2021-02-21 20:34:18,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 20:34:18,774 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 20:34:18,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:19,056 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:19,057 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:19,058 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:19,059 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:19,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 20:34:19,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:19,110 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:19,110 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:19,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-21 20:34:19,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:19,180 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:19,181 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:19,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 20:34:19,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:19,242 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:19,243 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:19,244 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:19,244 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:19,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-21 20:34:19,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:19,264 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:19,265 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:19,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 20:34:19,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:19,280 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:19,281 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:19,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 20:34:19,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:19,292 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:19,293 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:19,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-21 20:34:19,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:19,375 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:19,376 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:19,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 20:34:19,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:19,408 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:19,409 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:19,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 20:34:19,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:19,439 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:19,442 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:19,503 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-02-21 20:34:19,507 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1473498774] [2021-02-21 20:34:19,509 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 20:34:19,510 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-21 20:34:19,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674881516] [2021-02-21 20:34:19,519 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-21 20:34:19,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 20:34:19,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-21 20:34:19,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-21 20:34:19,541 INFO L87 Difference]: Start difference. First operand 281 states. Second operand 4 states. [2021-02-21 20:34:20,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 20:34:20,224 INFO L93 Difference]: Finished difference Result 573 states and 772 transitions. [2021-02-21 20:34:20,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-21 20:34:20,226 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 89 [2021-02-21 20:34:20,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 20:34:20,250 INFO L225 Difference]: With dead ends: 573 [2021-02-21 20:34:20,251 INFO L226 Difference]: Without dead ends: 279 [2021-02-21 20:34:20,264 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 [2021-02-21 20:34:20,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2021-02-21 20:34:20,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 259. [2021-02-21 20:34:20,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states. [2021-02-21 20:34:20,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 288 transitions. [2021-02-21 20:34:20,405 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 288 transitions. Word has length 89 [2021-02-21 20:34:20,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 20:34:20,406 INFO L480 AbstractCegarLoop]: Abstraction has 259 states and 288 transitions. [2021-02-21 20:34:20,406 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-21 20:34:20,406 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 288 transitions. [2021-02-21 20:34:20,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-02-21 20:34:20,420 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 20:34:20,420 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] [2021-02-21 20:34:20,421 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-21 20:34:20,422 INFO L428 AbstractCegarLoop]: === Iteration 2 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 20:34:20,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 20:34:20,424 INFO L82 PathProgramCache]: Analyzing trace with hash -206201793, now seen corresponding path program 1 times [2021-02-21 20:34:20,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 20:34:20,424 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1006210561] [2021-02-21 20:34:20,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 20:34:20,438 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 20:34:20,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:20,582 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:20,583 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:20,585 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:20,586 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:34:20,589 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:20,590 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:34:20,594 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:20,595 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:34:20,600 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:20,601 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:34:20,607 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:20,608 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:34:20,616 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:20,616 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:34:20,626 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:20,627 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:20,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 20:34:20,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:20,684 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:20,686 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:20,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-21 20:34:20,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:20,754 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:20,755 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:20,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 20:34:20,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:20,802 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:20,803 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 20:34:20,820 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:20,821 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-21 20:34:20,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-21 20:34:20,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:20,879 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:20,880 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:20,885 WARN L141 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size [2021-02-21 20:34:20,889 WARN L147 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size 17 [2021-02-21 20:34:20,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 20:34:20,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:20,944 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:20,945 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:20,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 20:34:20,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:20,954 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:20,955 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:20,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-21 20:34:20,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:20,977 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:20,978 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:20,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 20:34:20,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:20,996 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:20,997 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:20,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 20:34:21,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:21,012 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:21,012 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:21,090 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-02-21 20:34:21,091 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1006210561] [2021-02-21 20:34:21,092 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 20:34:21,092 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-02-21 20:34:21,092 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048724993] [2021-02-21 20:34:21,093 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-21 20:34:21,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 20:34:21,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-21 20:34:21,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2021-02-21 20:34:21,097 INFO L87 Difference]: Start difference. First operand 259 states and 288 transitions. Second operand 13 states. [2021-02-21 20:34:23,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 20:34:23,016 INFO L93 Difference]: Finished difference Result 546 states and 625 transitions. [2021-02-21 20:34:23,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-21 20:34:23,017 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 91 [2021-02-21 20:34:23,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 20:34:23,027 INFO L225 Difference]: With dead ends: 546 [2021-02-21 20:34:23,027 INFO L226 Difference]: Without dead ends: 300 [2021-02-21 20:34:23,030 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 [2021-02-21 20:34:23,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2021-02-21 20:34:23,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 280. [2021-02-21 20:34:23,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2021-02-21 20:34:23,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 311 transitions. [2021-02-21 20:34:23,095 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 311 transitions. Word has length 91 [2021-02-21 20:34:23,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 20:34:23,097 INFO L480 AbstractCegarLoop]: Abstraction has 280 states and 311 transitions. [2021-02-21 20:34:23,097 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-02-21 20:34:23,097 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 311 transitions. [2021-02-21 20:34:23,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2021-02-21 20:34:23,108 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 20:34:23,108 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] [2021-02-21 20:34:23,108 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-21 20:34:23,109 INFO L428 AbstractCegarLoop]: === Iteration 3 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 20:34:23,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 20:34:23,109 INFO L82 PathProgramCache]: Analyzing trace with hash 1644354155, now seen corresponding path program 1 times [2021-02-21 20:34:23,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 20:34:23,110 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [138305791] [2021-02-21 20:34:23,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 20:34:23,121 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 20:34:23,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:23,322 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:23,323 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:23,324 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:23,324 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:34:23,328 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:23,329 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:34:23,333 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:23,334 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:34:23,339 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:23,339 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:34:23,345 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:23,345 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:34:23,352 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:23,353 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:34:23,360 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:23,361 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:23,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 20:34:23,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:23,394 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:23,395 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:23,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-21 20:34:23,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:23,627 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:23,627 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:23,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 20:34:23,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:23,761 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:23,762 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:23,763 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:23,764 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 20:34:23,779 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:23,780 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-21 20:34:23,797 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:23,798 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:23,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-21 20:34:23,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:23,837 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:23,838 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 20:34:23,854 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:23,855 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-21 20:34:23,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 20:34:23,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:23,912 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:23,912 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 20:34:23,930 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:23,931 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-21 20:34:23,952 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:23,953 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-21 20:34:23,974 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:23,975 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-21 20:34:23,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 20:34:23,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:24,006 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:24,007 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:34:24,025 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:24,026 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:34:24,045 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:24,045 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:34:24,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-21 20:34:24,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:24,094 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:24,095 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:24,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 20:34:24,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:24,111 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:24,111 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:24,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-21 20:34:24,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:24,120 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:24,121 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:24,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 20:34:24,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:24,128 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:24,129 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:24,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 20:34:24,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:24,134 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:24,134 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:24,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-21 20:34:24,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:24,144 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:24,145 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:24,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 20:34:24,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:24,153 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:24,154 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:24,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 20:34:24,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:24,160 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:24,161 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:24,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-02-21 20:34:24,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:24,345 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:24,346 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:24,347 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:24,347 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:24,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 20:34:24,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:24,395 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:24,396 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:24,396 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:24,397 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:24,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 20:34:24,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:24,404 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:24,405 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:24,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-21 20:34:24,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:24,446 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:24,446 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:24,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 20:34:24,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:24,482 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:24,482 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:24,483 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:24,484 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 20:34:24,485 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:24,486 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-21 20:34:24,486 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:24,487 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:24,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-21 20:34:24,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:24,503 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:24,503 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 20:34:24,504 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:24,505 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-21 20:34:24,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 20:34:24,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:24,520 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:24,521 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 20:34:24,547 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:24,548 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-21 20:34:24,576 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:24,577 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-21 20:34:24,606 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:24,606 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-21 20:34:24,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 20:34:24,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:24,641 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:24,642 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:34:24,667 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:24,668 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:34:24,693 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:24,694 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:34:24,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-21 20:34:24,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:24,742 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:24,743 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-21 20:34:24,777 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:24,778 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-21 20:34:24,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 20:34:24,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:24,841 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:24,843 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-21 20:34:24,881 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:24,883 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-21 20:34:24,937 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:24,939 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-02-21 20:34:25,006 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:25,010 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-02-21 20:34:25,090 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:25,092 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-21 20:34:25,142 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:25,143 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-21 20:34:25,198 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:25,199 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-21 20:34:25,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 20:34:25,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:25,277 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:25,278 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-21 20:34:25,320 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:25,320 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-21 20:34:25,363 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:25,364 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-21 20:34:25,415 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:25,417 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-21 20:34:25,419 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:25,420 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-02-21 20:34:25,998 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 115 proven. 38 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-02-21 20:34:25,998 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [138305791] [2021-02-21 20:34:25,999 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 20:34:25,999 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [41] imperfect sequences [] total 41 [2021-02-21 20:34:25,999 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119364608] [2021-02-21 20:34:26,000 INFO L460 AbstractCegarLoop]: Interpolant automaton has 41 states [2021-02-21 20:34:26,000 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 20:34:26,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-02-21 20:34:26,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=1540, Unknown=0, NotChecked=0, Total=1640 [2021-02-21 20:34:26,001 INFO L87 Difference]: Start difference. First operand 280 states and 311 transitions. Second operand 41 states. [2021-02-21 20:34:33,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 20:34:33,434 INFO L93 Difference]: Finished difference Result 578 states and 659 transitions. [2021-02-21 20:34:33,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-02-21 20:34:33,436 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 239 [2021-02-21 20:34:33,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 20:34:33,440 INFO L225 Difference]: With dead ends: 578 [2021-02-21 20:34:33,440 INFO L226 Difference]: Without dead ends: 315 [2021-02-21 20:34:33,444 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 914 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=341, Invalid=5061, Unknown=0, NotChecked=0, Total=5402 [2021-02-21 20:34:33,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2021-02-21 20:34:33,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 290. [2021-02-21 20:34:33,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2021-02-21 20:34:33,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 323 transitions. [2021-02-21 20:34:33,488 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 323 transitions. Word has length 239 [2021-02-21 20:34:33,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 20:34:33,488 INFO L480 AbstractCegarLoop]: Abstraction has 290 states and 323 transitions. [2021-02-21 20:34:33,489 INFO L481 AbstractCegarLoop]: Interpolant automaton has 41 states. [2021-02-21 20:34:33,489 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 323 transitions. [2021-02-21 20:34:33,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2021-02-21 20:34:33,492 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 20:34:33,492 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] [2021-02-21 20:34:33,493 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-21 20:34:33,493 INFO L428 AbstractCegarLoop]: === Iteration 4 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 20:34:33,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 20:34:33,494 INFO L82 PathProgramCache]: Analyzing trace with hash 1822223879, now seen corresponding path program 1 times [2021-02-21 20:34:33,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 20:34:33,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [158217392] [2021-02-21 20:34:33,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 20:34:33,499 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 20:34:33,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:33,615 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:33,617 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:33,618 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:33,618 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:34:33,621 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:33,622 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:34:33,626 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:33,627 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:34:33,632 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:33,633 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:34:33,642 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:33,643 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:34:33,650 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:33,650 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:34:33,659 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:33,660 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:33,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 20:34:33,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:33,688 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:33,688 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:33,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-21 20:34:33,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:33,864 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:33,864 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:33,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 20:34:33,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:33,962 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:33,964 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:33,966 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:33,967 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:33,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-21 20:34:33,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:33,991 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:33,993 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:33,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 20:34:33,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:34,016 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:34,016 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:34,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 20:34:34,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:34,023 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:34,024 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:34,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-21 20:34:34,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:34,071 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:34,072 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:34,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 20:34:34,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:34,086 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:34,087 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:34,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-21 20:34:34,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:34,096 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:34,096 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:34,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 20:34:34,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:34,103 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:34,104 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:34,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 20:34:34,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:34,109 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:34,110 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:34,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-21 20:34:34,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:34,120 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:34,120 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:34,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 20:34:34,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:34,139 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:34,140 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:34,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 20:34:34,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:34,145 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:34,145 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:34,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-21 20:34:34,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:34,241 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:34,242 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:34,242 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:34,242 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:34,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 20:34:34,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:34,326 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:34,326 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:34,327 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:34,327 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:34,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 20:34:34,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:34,334 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:34,334 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:34,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-21 20:34:34,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:34,390 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:34,390 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:34,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 20:34:34,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:34,422 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:34,424 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:34,425 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:34,425 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 20:34:34,437 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:34,438 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-21 20:34:34,459 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:34,461 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:34,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-21 20:34:34,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:34,485 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:34,486 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-21 20:34:34,507 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:34,508 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-21 20:34:34,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 20:34:34,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:34,553 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:34,555 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-21 20:34:34,580 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:34,581 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-21 20:34:34,617 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:34,618 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-21 20:34:34,660 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:34,661 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-21 20:34:34,711 WARN L141 QuantifierPusher]: treesize reduction 13, result has 68.3 percent of original size [2021-02-21 20:34:34,712 WARN L147 QuantifierPusher]: treesize reduction 13, result has 68.3 percent of original size 28 [2021-02-21 20:34:34,750 WARN L141 QuantifierPusher]: treesize reduction 10, result has 77.3 percent of original size [2021-02-21 20:34:34,751 WARN L147 QuantifierPusher]: treesize reduction 10, result has 77.3 percent of original size 34 [2021-02-21 20:34:34,804 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:34,805 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-21 20:34:34,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 20:34:34,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:34,860 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:34,861 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-21 20:34:34,890 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:34,891 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-21 20:34:34,923 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:34,923 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-21 20:34:34,958 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:34,959 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-21 20:34:34,962 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:34,963 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 159 [2021-02-21 20:34:35,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-21 20:34:35,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:35,156 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:35,159 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:35,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 20:34:35,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:35,174 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:35,177 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:35,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 20:34:35,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:35,187 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:35,188 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:35,545 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 68 proven. 21 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2021-02-21 20:34:35,545 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [158217392] [2021-02-21 20:34:35,546 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 20:34:35,546 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-02-21 20:34:35,546 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019231344] [2021-02-21 20:34:35,547 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-02-21 20:34:35,547 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 20:34:35,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-02-21 20:34:35,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=541, Unknown=0, NotChecked=0, Total=600 [2021-02-21 20:34:35,548 INFO L87 Difference]: Start difference. First operand 290 states and 323 transitions. Second operand 25 states. [2021-02-21 20:34:36,868 WARN L202 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 43 [2021-02-21 20:34:37,210 WARN L202 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2021-02-21 20:34:37,551 WARN L202 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-02-21 20:34:37,790 WARN L202 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2021-02-21 20:34:40,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 20:34:40,907 INFO L93 Difference]: Finished difference Result 581 states and 656 transitions. [2021-02-21 20:34:40,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-02-21 20:34:40,908 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 243 [2021-02-21 20:34:40,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 20:34:40,911 INFO L225 Difference]: With dead ends: 581 [2021-02-21 20:34:40,911 INFO L226 Difference]: Without dead ends: 310 [2021-02-21 20:34:40,914 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=128, Invalid=1132, Unknown=0, NotChecked=0, Total=1260 [2021-02-21 20:34:40,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2021-02-21 20:34:40,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 290. [2021-02-21 20:34:40,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2021-02-21 20:34:40,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 321 transitions. [2021-02-21 20:34:40,953 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 321 transitions. Word has length 243 [2021-02-21 20:34:40,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 20:34:40,954 INFO L480 AbstractCegarLoop]: Abstraction has 290 states and 321 transitions. [2021-02-21 20:34:40,954 INFO L481 AbstractCegarLoop]: Interpolant automaton has 25 states. [2021-02-21 20:34:40,954 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 321 transitions. [2021-02-21 20:34:40,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2021-02-21 20:34:40,957 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 20:34:40,958 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] [2021-02-21 20:34:40,958 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-21 20:34:40,958 INFO L428 AbstractCegarLoop]: === Iteration 5 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 20:34:40,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 20:34:40,959 INFO L82 PathProgramCache]: Analyzing trace with hash -1985515759, now seen corresponding path program 1 times [2021-02-21 20:34:40,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 20:34:40,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [810145224] [2021-02-21 20:34:40,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 20:34:40,964 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 20:34:40,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:41,051 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:41,052 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:41,053 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:41,053 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:34:41,056 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:41,057 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:34:41,061 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:41,061 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:34:41,066 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:41,067 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:34:41,073 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:41,073 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:34:41,080 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:41,081 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:34:41,089 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:41,090 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:41,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 20:34:41,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:41,116 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:41,117 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:41,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-21 20:34:41,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:41,268 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:41,268 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:41,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 20:34:41,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:41,437 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:41,438 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:41,438 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:41,439 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 20:34:41,451 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:41,452 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-21 20:34:41,469 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:41,470 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:41,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-21 20:34:41,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:41,503 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:41,504 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 20:34:41,520 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:41,521 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-21 20:34:41,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 20:34:41,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:41,570 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:41,571 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 20:34:41,591 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:41,591 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-21 20:34:41,615 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:41,616 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-21 20:34:41,653 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:41,654 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-21 20:34:41,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 20:34:41,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:41,693 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:41,694 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:34:41,714 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:41,715 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:34:41,746 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:41,747 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:34:41,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-21 20:34:41,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:41,804 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:41,805 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:41,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 20:34:41,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:41,826 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:41,827 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:41,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-21 20:34:41,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:41,837 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:41,838 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:41,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 20:34:41,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:41,847 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:41,848 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:41,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 20:34:41,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:41,854 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:41,855 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:41,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-21 20:34:41,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:41,868 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:41,869 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:41,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 20:34:41,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:41,877 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:41,877 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:41,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 20:34:41,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:41,882 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:41,882 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:41,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-21 20:34:41,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:42,020 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:42,021 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-21 20:34:42,060 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:42,061 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-21 20:34:42,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 20:34:42,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:42,157 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:42,158 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-21 20:34:42,203 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:42,204 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-21 20:34:42,261 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:42,263 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-02-21 20:34:42,330 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:42,330 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-02-21 20:34:42,384 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:42,385 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-21 20:34:42,430 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:42,431 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-21 20:34:42,475 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:42,476 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-21 20:34:42,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 20:34:42,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:42,529 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:42,530 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-21 20:34:42,567 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:42,569 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-21 20:34:42,608 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:42,609 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-21 20:34:42,652 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:42,653 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-21 20:34:42,654 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:42,654 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-21 20:34:42,658 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:42,659 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 244 [2021-02-21 20:34:42,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-21 20:34:42,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:42,851 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:42,852 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:42,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 20:34:42,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:42,867 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:42,868 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:42,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-21 20:34:42,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:42,875 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:42,876 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:42,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 20:34:42,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:42,883 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:42,884 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:42,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 20:34:42,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:42,889 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:42,890 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:42,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-21 20:34:42,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:42,901 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:42,902 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:42,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 20:34:42,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:42,909 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:42,909 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:42,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 20:34:42,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:42,914 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:42,915 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:43,204 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 2 proven. 23 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2021-02-21 20:34:43,204 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [810145224] [2021-02-21 20:34:43,204 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 20:34:43,205 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-02-21 20:34:43,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938275856] [2021-02-21 20:34:43,205 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-02-21 20:34:43,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 20:34:43,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-02-21 20:34:43,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=1038, Unknown=0, NotChecked=0, Total=1122 [2021-02-21 20:34:43,207 INFO L87 Difference]: Start difference. First operand 290 states and 321 transitions. Second operand 34 states. [2021-02-21 20:34:44,682 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 40 [2021-02-21 20:34:45,117 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 41 [2021-02-21 20:34:45,365 WARN L202 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2021-02-21 20:34:45,592 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 41 [2021-02-21 20:34:50,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 20:34:50,095 INFO L93 Difference]: Finished difference Result 592 states and 663 transitions. [2021-02-21 20:34:50,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-02-21 20:34:50,096 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 241 [2021-02-21 20:34:50,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 20:34:50,102 INFO L225 Difference]: With dead ends: 592 [2021-02-21 20:34:50,102 INFO L226 Difference]: Without dead ends: 321 [2021-02-21 20:34:50,108 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 482 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=270, Invalid=3036, Unknown=0, NotChecked=0, Total=3306 [2021-02-21 20:34:50,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2021-02-21 20:34:50,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 299. [2021-02-21 20:34:50,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2021-02-21 20:34:50,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 331 transitions. [2021-02-21 20:34:50,164 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 331 transitions. Word has length 241 [2021-02-21 20:34:50,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 20:34:50,166 INFO L480 AbstractCegarLoop]: Abstraction has 299 states and 331 transitions. [2021-02-21 20:34:50,166 INFO L481 AbstractCegarLoop]: Interpolant automaton has 34 states. [2021-02-21 20:34:50,167 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 331 transitions. [2021-02-21 20:34:50,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2021-02-21 20:34:50,171 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 20:34:50,172 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] [2021-02-21 20:34:50,172 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-21 20:34:50,172 INFO L428 AbstractCegarLoop]: === Iteration 6 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 20:34:50,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 20:34:50,173 INFO L82 PathProgramCache]: Analyzing trace with hash -159569349, now seen corresponding path program 1 times [2021-02-21 20:34:50,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 20:34:50,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2015416922] [2021-02-21 20:34:50,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 20:34:50,178 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 20:34:50,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:50,263 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:50,263 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:50,264 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:50,264 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:34:50,267 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:50,268 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:34:50,271 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:50,272 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:34:50,277 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:50,278 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:34:50,285 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:50,286 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:34:50,292 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:50,293 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:34:50,300 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:50,301 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:50,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 20:34:50,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:50,327 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:50,327 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:50,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-21 20:34:50,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:50,462 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:50,463 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:50,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 20:34:50,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:50,580 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:50,580 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:50,581 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:50,581 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 20:34:50,594 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:50,595 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-21 20:34:50,624 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:50,625 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:50,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-21 20:34:50,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:50,762 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:50,764 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-21 20:34:50,798 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:50,799 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-21 20:34:50,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 20:34:50,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:50,895 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:50,896 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-21 20:34:50,928 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:50,929 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-21 20:34:50,988 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:50,990 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-21 20:34:51,051 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:51,052 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-21 20:34:51,116 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:51,118 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-21 20:34:51,202 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:51,204 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-02-21 20:34:51,297 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:51,297 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-21 20:34:51,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 20:34:51,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:51,363 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:51,364 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-21 20:34:51,398 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:51,398 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-21 20:34:51,431 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:51,432 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-21 20:34:51,471 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:51,472 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-21 20:34:51,473 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:51,473 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-21 20:34:51,475 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:51,476 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 487 [2021-02-21 20:34:51,882 WARN L202 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2021-02-21 20:34:51,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-21 20:34:51,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:51,907 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:51,907 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:51,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 20:34:51,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:51,922 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:51,922 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:51,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-21 20:34:51,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:51,929 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:51,930 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:51,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 20:34:51,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:51,936 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:51,937 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:51,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 20:34:51,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:51,941 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:51,941 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:51,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-21 20:34:51,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:51,950 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:51,951 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:51,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 20:34:51,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:51,957 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:51,958 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:51,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 20:34:51,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:51,962 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:51,962 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:52,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-21 20:34:52,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:52,066 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:52,067 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:52,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 20:34:52,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:52,086 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:52,087 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:52,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 20:34:52,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:52,092 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:52,092 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:52,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-21 20:34:52,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:52,107 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:52,107 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:52,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 20:34:52,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:52,121 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:52,121 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:52,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-21 20:34:52,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:52,129 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:52,130 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:52,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 20:34:52,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:52,136 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:52,137 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:52,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 20:34:52,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:52,141 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:52,142 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:52,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-21 20:34:52,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:52,151 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:52,152 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:52,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 20:34:52,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:52,159 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:52,159 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:52,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 20:34:52,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:34:52,164 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:34:52,165 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:34:52,679 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2021-02-21 20:34:52,680 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2015416922] [2021-02-21 20:34:52,680 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 20:34:52,680 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-02-21 20:34:52,680 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457380640] [2021-02-21 20:34:52,681 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-02-21 20:34:52,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 20:34:52,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-02-21 20:34:52,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=541, Unknown=0, NotChecked=0, Total=600 [2021-02-21 20:34:52,682 INFO L87 Difference]: Start difference. First operand 299 states and 331 transitions. Second operand 25 states. [2021-02-21 20:34:53,245 WARN L202 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-02-21 20:34:53,775 WARN L202 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-02-21 20:34:54,997 WARN L202 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2021-02-21 20:34:55,699 WARN L202 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-02-21 20:34:56,394 WARN L202 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2021-02-21 20:34:57,019 WARN L202 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-02-21 20:35:01,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 20:35:01,401 INFO L93 Difference]: Finished difference Result 596 states and 661 transitions. [2021-02-21 20:35:01,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-02-21 20:35:01,402 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 243 [2021-02-21 20:35:01,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 20:35:01,407 INFO L225 Difference]: With dead ends: 596 [2021-02-21 20:35:01,407 INFO L226 Difference]: Without dead ends: 319 [2021-02-21 20:35:01,409 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=128, Invalid=1132, Unknown=0, NotChecked=0, Total=1260 [2021-02-21 20:35:01,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2021-02-21 20:35:01,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 299. [2021-02-21 20:35:01,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2021-02-21 20:35:01,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 329 transitions. [2021-02-21 20:35:01,447 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 329 transitions. Word has length 243 [2021-02-21 20:35:01,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 20:35:01,447 INFO L480 AbstractCegarLoop]: Abstraction has 299 states and 329 transitions. [2021-02-21 20:35:01,447 INFO L481 AbstractCegarLoop]: Interpolant automaton has 25 states. [2021-02-21 20:35:01,447 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 329 transitions. [2021-02-21 20:35:01,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2021-02-21 20:35:01,451 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 20:35:01,451 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] [2021-02-21 20:35:01,451 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-21 20:35:01,452 INFO L428 AbstractCegarLoop]: === Iteration 7 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 20:35:01,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 20:35:01,452 INFO L82 PathProgramCache]: Analyzing trace with hash -279275528, now seen corresponding path program 1 times [2021-02-21 20:35:01,452 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 20:35:01,453 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [980499359] [2021-02-21 20:35:01,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 20:35:01,457 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 20:35:01,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:35:01,540 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:01,541 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:35:01,542 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:01,542 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:35:01,549 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:01,550 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:35:01,554 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:01,555 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:35:01,560 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:01,561 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:35:01,567 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:01,568 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:35:01,575 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:01,575 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:35:01,583 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:01,584 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:35:01,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 20:35:01,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:35:01,612 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:01,613 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:35:01,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-21 20:35:01,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:35:01,874 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:01,874 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:35:01,887 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:01,888 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:35:01,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 20:35:02,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:35:02,063 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:02,064 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:35:02,065 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:02,065 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-21 20:35:02,083 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:02,084 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:35:02,100 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:02,101 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:35:02,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-21 20:35:02,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:35:02,139 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:02,140 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:35:02,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 20:35:02,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:35:02,159 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:02,159 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:35:02,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 20:35:02,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:35:02,164 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:02,164 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:35:02,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-21 20:35:02,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:35:02,183 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:02,183 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:35:02,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 20:35:02,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:35:02,198 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:02,199 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:35:02,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-21 20:35:02,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:35:02,206 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:02,207 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:35:02,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 20:35:02,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:35:02,214 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:02,215 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:35:02,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 20:35:02,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:35:02,219 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:02,220 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:35:02,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-21 20:35:02,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:35:02,230 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:02,231 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:35:02,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 20:35:02,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:35:02,239 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:02,240 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:35:02,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 20:35:02,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:35:02,245 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:02,245 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:35:02,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-21 20:35:02,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:35:02,359 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:02,359 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 20:35:02,382 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:02,382 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-21 20:35:02,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 20:35:02,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:35:02,437 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:02,438 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 20:35:02,466 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:02,467 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-21 20:35:02,497 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:02,498 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-21 20:35:02,528 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:02,529 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-21 20:35:02,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 20:35:02,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:35:02,573 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:02,573 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:35:02,597 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:02,598 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:35:02,624 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:02,624 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:35:02,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-21 20:35:02,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:35:02,676 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:02,677 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:35:02,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 20:35:02,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:35:02,691 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:02,692 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:35:02,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-21 20:35:02,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:35:02,700 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:02,700 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:35:02,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 20:35:02,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:35:02,707 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:02,707 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:35:02,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 20:35:02,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:35:02,712 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:02,712 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:35:02,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-21 20:35:02,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:35:02,721 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:02,722 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:35:02,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 20:35:02,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:35:02,730 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:02,730 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:35:02,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 20:35:02,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:35:02,735 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:02,736 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:35:03,044 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2021-02-21 20:35:03,044 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [980499359] [2021-02-21 20:35:03,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 20:35:03,045 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-02-21 20:35:03,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143453785] [2021-02-21 20:35:03,045 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-02-21 20:35:03,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 20:35:03,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-02-21 20:35:03,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=505, Unknown=0, NotChecked=0, Total=552 [2021-02-21 20:35:03,047 INFO L87 Difference]: Start difference. First operand 299 states and 329 transitions. Second operand 24 states. [2021-02-21 20:35:07,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 20:35:07,253 INFO L93 Difference]: Finished difference Result 531 states and 594 transitions. [2021-02-21 20:35:07,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-02-21 20:35:07,254 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 242 [2021-02-21 20:35:07,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 20:35:07,258 INFO L225 Difference]: With dead ends: 531 [2021-02-21 20:35:07,258 INFO L226 Difference]: Without dead ends: 421 [2021-02-21 20:35:07,260 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=169, Invalid=1811, Unknown=0, NotChecked=0, Total=1980 [2021-02-21 20:35:07,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2021-02-21 20:35:07,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 336. [2021-02-21 20:35:07,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2021-02-21 20:35:07,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 371 transitions. [2021-02-21 20:35:07,303 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 371 transitions. Word has length 242 [2021-02-21 20:35:07,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 20:35:07,303 INFO L480 AbstractCegarLoop]: Abstraction has 336 states and 371 transitions. [2021-02-21 20:35:07,304 INFO L481 AbstractCegarLoop]: Interpolant automaton has 24 states. [2021-02-21 20:35:07,304 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 371 transitions. [2021-02-21 20:35:07,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2021-02-21 20:35:07,305 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 20:35:07,305 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] [2021-02-21 20:35:07,306 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-21 20:35:07,306 INFO L428 AbstractCegarLoop]: === Iteration 8 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 20:35:07,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 20:35:07,306 INFO L82 PathProgramCache]: Analyzing trace with hash 1639303553, now seen corresponding path program 1 times [2021-02-21 20:35:07,306 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 20:35:07,307 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1235385777] [2021-02-21 20:35:07,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 20:35:07,311 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 20:35:07,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:35:07,816 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:07,817 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:35:07,817 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:07,818 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-21 20:35:07,822 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:07,822 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-21 20:35:07,827 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:07,828 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-21 20:35:07,834 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:07,835 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-21 20:35:07,842 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:07,843 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-21 20:35:07,850 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:07,851 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-21 20:35:07,860 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:07,860 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 20:35:07,869 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:07,870 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:35:07,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 20:35:07,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:35:07,899 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:07,899 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:35:07,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-21 20:35:08,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:35:08,157 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:08,157 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-21 20:35:08,170 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:08,171 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-21 20:35:08,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 20:35:08,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:35:08,465 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:08,467 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:35:08,468 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:08,469 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 20:35:08,486 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:08,487 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-21 20:35:08,514 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:08,514 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-21 20:35:08,538 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:08,539 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-21 20:35:08,561 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:08,562 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-21 20:35:08,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-21 20:35:08,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:35:08,624 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:08,625 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 20:35:08,651 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:08,652 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-21 20:35:08,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 20:35:08,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:35:08,722 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:08,723 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 20:35:08,755 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:08,756 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-21 20:35:08,791 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:08,792 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-21 20:35:08,830 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:08,831 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-21 20:35:08,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 20:35:08,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:35:08,875 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:08,876 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-21 20:35:08,911 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:08,911 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-21 20:35:08,949 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:08,949 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-21 20:35:08,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-21 20:35:09,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:35:09,014 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:09,014 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:35:09,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 20:35:09,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:35:09,028 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:09,029 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:35:09,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-21 20:35:09,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:35:09,036 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:09,037 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:35:09,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 20:35:09,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:35:09,043 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:09,044 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:35:09,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 20:35:09,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:35:09,048 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:09,049 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:35:09,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-21 20:35:09,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:35:09,058 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:09,059 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:35:09,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 20:35:09,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:35:09,066 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:09,067 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:35:09,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 20:35:09,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:35:09,072 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:09,072 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:35:09,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-21 20:35:09,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:35:09,261 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:09,261 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-21 20:35:09,304 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:09,304 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-02-21 20:35:09,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 20:35:09,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:35:09,456 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:09,456 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-21 20:35:09,501 WARN L141 QuantifierPusher]: treesize reduction 4, result has 89.7 percent of original size [2021-02-21 20:35:09,502 WARN L147 QuantifierPusher]: treesize reduction 4, result has 89.7 percent of original size 35 [2021-02-21 20:35:09,582 WARN L141 QuantifierPusher]: treesize reduction 48, result has 51.5 percent of original size [2021-02-21 20:35:09,584 WARN L147 QuantifierPusher]: treesize reduction 48, result has 51.5 percent of original size 51 [2021-02-21 20:35:09,684 WARN L141 QuantifierPusher]: treesize reduction 48, result has 54.7 percent of original size [2021-02-21 20:35:09,687 WARN L147 QuantifierPusher]: treesize reduction 48, result has 54.7 percent of original size 58 [2021-02-21 20:35:09,813 WARN L141 QuantifierPusher]: treesize reduction 111, result has 39.7 percent of original size [2021-02-21 20:35:09,814 WARN L147 QuantifierPusher]: treesize reduction 111, result has 39.7 percent of original size 73 [2021-02-21 20:35:09,986 WARN L141 QuantifierPusher]: treesize reduction 137, result has 42.7 percent of original size [2021-02-21 20:35:09,989 WARN L147 QuantifierPusher]: treesize reduction 137, result has 42.7 percent of original size 102 [2021-02-21 20:35:10,201 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 44 [2021-02-21 20:35:10,208 WARN L141 QuantifierPusher]: treesize reduction 137, result has 46.9 percent of original size [2021-02-21 20:35:10,212 WARN L147 QuantifierPusher]: treesize reduction 137, result has 46.9 percent of original size 121 [2021-02-21 20:35:10,516 WARN L202 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2021-02-21 20:35:10,521 WARN L141 QuantifierPusher]: treesize reduction 101, result has 39.9 percent of original size [2021-02-21 20:35:10,522 WARN L147 QuantifierPusher]: treesize reduction 101, result has 39.9 percent of original size 67 [2021-02-21 20:35:10,659 WARN L141 QuantifierPusher]: treesize reduction 48, result has 56.4 percent of original size [2021-02-21 20:35:10,660 WARN L147 QuantifierPusher]: treesize reduction 48, result has 56.4 percent of original size 62 [2021-02-21 20:35:10,778 WARN L141 QuantifierPusher]: treesize reduction 51, result has 56.0 percent of original size [2021-02-21 20:35:10,779 WARN L147 QuantifierPusher]: treesize reduction 51, result has 56.0 percent of original size 65 [2021-02-21 20:35:10,863 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:10,868 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-02-21 20:35:10,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 20:35:10,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:35:10,960 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:10,961 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-02-21 20:35:11,034 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:11,035 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-02-21 20:35:11,116 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:11,117 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-21 20:35:11,202 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:11,203 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-21 20:35:11,204 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:11,205 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-21 20:35:11,206 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:11,208 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 258 [2021-02-21 20:35:11,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-21 20:35:11,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:35:11,674 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:11,676 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 177160 [2021-02-21 20:35:12,415 WARN L202 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-02-21 20:35:12,419 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:12,420 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 177160 [2021-02-21 20:35:12,422 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:12,422 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 177160 [2021-02-21 20:35:12,425 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:35:12,426 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 177160 [2021-02-21 20:35:12,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 20:35:12,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:38:30,967 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:38:30,968 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 20:38:31,252 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:38:31,253 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-21 20:38:31,348 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:38:31,349 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36