java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/list-simple/dll2n_insert_unequal.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:12:02,821 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:12:02,823 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:12:02,840 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:12:02,840 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:12:02,842 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:12:02,845 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:12:02,855 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:12:02,859 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:12:02,862 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:12:02,864 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:12:02,866 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:12:02,866 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:12:02,868 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:12:02,871 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:12:02,872 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:12:02,874 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:12:02,875 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:12:02,876 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:12:02,881 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:12:02,885 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:12:02,890 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:12:02,892 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:12:02,893 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:12:02,894 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 23:12:02,895 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 23:12:02,895 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 23:12:02,896 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 23:12:02,896 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 23:12:02,897 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 23:12:02,897 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:12:02,898 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:12:02,899 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:12:02,900 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:12:02,901 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:12:02,901 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:12:02,901 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:12:02,902 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:12:02,902 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:12:02,903 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:12:02,903 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:12:02,904 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-14 23:12:02,918 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:12:02,918 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:12:02,920 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:12:02,920 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:12:02,920 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:12:02,920 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:12:02,921 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:12:02,921 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:12:02,921 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:12:02,921 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:12:02,921 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:12:02,922 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:12:02,922 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:12:02,922 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:12:02,922 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:12:02,922 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:12:02,922 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:12:02,923 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:12:02,923 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:12:02,923 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:12:02,923 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:12:02,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:12:02,924 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:12:02,924 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:12:02,924 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:12:02,924 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:12:02,925 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:12:02,925 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:12:02,925 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:12:03,214 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:12:03,227 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:12:03,231 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:12:03,233 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:12:03,233 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:12:03,234 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/dll2n_insert_unequal.i [2019-10-14 23:12:03,298 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01d6ed6f6/73aeccb5a4634a6e8d7e52a338f49e7a/FLAG81e0d7fe1 [2019-10-14 23:12:03,924 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:12:03,925 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/dll2n_insert_unequal.i [2019-10-14 23:12:03,948 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01d6ed6f6/73aeccb5a4634a6e8d7e52a338f49e7a/FLAG81e0d7fe1 [2019-10-14 23:12:04,124 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01d6ed6f6/73aeccb5a4634a6e8d7e52a338f49e7a [2019-10-14 23:12:04,134 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:12:04,136 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:12:04,137 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:12:04,138 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:12:04,141 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:12:04,142 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:12:04" (1/1) ... [2019-10-14 23:12:04,146 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@353a0f6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:12:04, skipping insertion in model container [2019-10-14 23:12:04,146 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:12:04" (1/1) ... [2019-10-14 23:12:04,154 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:12:04,205 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:12:04,683 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:12:04,701 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:12:04,758 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:12:04,821 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:12:04,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:12:04 WrapperNode [2019-10-14 23:12:04,823 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:12:04,824 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:12:04,824 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:12:04,824 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:12:04,838 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:12:04" (1/1) ... [2019-10-14 23:12:04,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:12:04" (1/1) ... [2019-10-14 23:12:04,855 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:12:04" (1/1) ... [2019-10-14 23:12:04,856 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:12:04" (1/1) ... [2019-10-14 23:12:04,894 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:12:04" (1/1) ... [2019-10-14 23:12:04,910 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:12:04" (1/1) ... [2019-10-14 23:12:04,920 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:12:04" (1/1) ... [2019-10-14 23:12:04,927 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:12:04,928 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:12:04,928 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:12:04,928 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:12:04,929 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:12:04" (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 [2019-10-14 23:12:04,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:12:04,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:12:04,994 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-14 23:12:04,994 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-14 23:12:04,994 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-10-14 23:12:04,994 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2019-10-14 23:12:04,995 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create [2019-10-14 23:12:04,995 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy [2019-10-14 23:12:04,995 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert [2019-10-14 23:12:04,995 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:12:04,995 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:12:04,996 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-14 23:12:04,996 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-14 23:12:04,996 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-14 23:12:04,996 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-14 23:12:04,996 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-14 23:12:04,997 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-14 23:12:04,997 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-14 23:12:04,997 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-14 23:12:04,997 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-14 23:12:04,997 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-14 23:12:04,997 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-14 23:12:04,998 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-14 23:12:04,998 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-14 23:12:04,998 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-14 23:12:04,998 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-14 23:12:04,998 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-14 23:12:04,999 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-14 23:12:04,999 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-14 23:12:04,999 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-14 23:12:04,999 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-14 23:12:04,999 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-14 23:12:04,999 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-14 23:12:05,000 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-14 23:12:05,000 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-14 23:12:05,000 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-14 23:12:05,000 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-14 23:12:05,000 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-14 23:12:05,000 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-14 23:12:05,000 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-14 23:12:05,001 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-14 23:12:05,001 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-14 23:12:05,001 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-14 23:12:05,001 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-14 23:12:05,001 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-14 23:12:05,001 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-14 23:12:05,001 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-14 23:12:05,001 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-14 23:12:05,002 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-14 23:12:05,002 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-14 23:12:05,002 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-14 23:12:05,002 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-14 23:12:05,002 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-14 23:12:05,002 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-14 23:12:05,002 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-14 23:12:05,002 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-14 23:12:05,002 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-14 23:12:05,003 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-14 23:12:05,003 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-14 23:12:05,003 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-14 23:12:05,003 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-14 23:12:05,003 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-14 23:12:05,003 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-14 23:12:05,004 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-14 23:12:05,004 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-14 23:12:05,004 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-14 23:12:05,004 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-14 23:12:05,004 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-14 23:12:05,005 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-14 23:12:05,005 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-14 23:12:05,005 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-14 23:12:05,005 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-14 23:12:05,005 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-14 23:12:05,005 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-14 23:12:05,006 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-14 23:12:05,006 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-14 23:12:05,006 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-14 23:12:05,006 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-14 23:12:05,006 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-14 23:12:05,007 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-14 23:12:05,007 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-14 23:12:05,007 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-14 23:12:05,007 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-14 23:12:05,007 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-14 23:12:05,008 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-14 23:12:05,008 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-14 23:12:05,008 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-14 23:12:05,008 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-14 23:12:05,008 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-14 23:12:05,008 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-14 23:12:05,008 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-14 23:12:05,009 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-14 23:12:05,009 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-14 23:12:05,009 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-14 23:12:05,009 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-14 23:12:05,009 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-14 23:12:05,009 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-14 23:12:05,010 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-14 23:12:05,010 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-14 23:12:05,010 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-14 23:12:05,010 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-14 23:12:05,010 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-14 23:12:05,010 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-14 23:12:05,010 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-14 23:12:05,011 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-14 23:12:05,011 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-14 23:12:05,011 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-14 23:12:05,011 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-14 23:12:05,011 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-14 23:12:05,011 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-14 23:12:05,011 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-14 23:12:05,012 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-14 23:12:05,012 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-14 23:12:05,012 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-14 23:12:05,012 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-14 23:12:05,012 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-14 23:12:05,012 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-10-14 23:12:05,012 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2019-10-14 23:12:05,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-14 23:12:05,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-14 23:12:05,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 23:12:05,013 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create [2019-10-14 23:12:05,013 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy [2019-10-14 23:12:05,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-14 23:12:05,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 23:12:05,014 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert [2019-10-14 23:12:05,014 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:12:05,014 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 23:12:05,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-14 23:12:05,014 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 23:12:05,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:12:05,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:12:05,472 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-10-14 23:12:05,696 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:12:05,697 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-14 23:12:05,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:12:05 BoogieIcfgContainer [2019-10-14 23:12:05,698 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:12:05,700 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:12:05,701 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:12:05,704 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:12:05,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:12:04" (1/3) ... [2019-10-14 23:12:05,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b0664 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:12:05, skipping insertion in model container [2019-10-14 23:12:05,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:12:04" (2/3) ... [2019-10-14 23:12:05,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b0664 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:12:05, skipping insertion in model container [2019-10-14 23:12:05,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:12:05" (3/3) ... [2019-10-14 23:12:05,709 INFO L109 eAbstractionObserver]: Analyzing ICFG dll2n_insert_unequal.i [2019-10-14 23:12:05,720 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:12:05,729 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:12:05,742 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:12:05,771 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:12:05,771 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:12:05,771 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:12:05,772 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:12:05,772 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:12:05,772 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:12:05,772 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:12:05,773 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:12:05,796 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states. [2019-10-14 23:12:05,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-14 23:12:05,804 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:12:05,806 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:12:05,808 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:12:05,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:12:05,815 INFO L82 PathProgramCache]: Analyzing trace with hash 405466376, now seen corresponding path program 1 times [2019-10-14 23:12:05,824 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:12:05,825 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154716019] [2019-10-14 23:12:05,825 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:12:05,826 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:12:05,826 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:12:05,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:06,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:06,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:06,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:06,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:06,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:12:06,298 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154716019] [2019-10-14 23:12:06,299 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:12:06,299 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-14 23:12:06,300 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089648302] [2019-10-14 23:12:06,306 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 23:12:06,306 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:12:06,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 23:12:06,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-14 23:12:06,325 INFO L87 Difference]: Start difference. First operand 57 states. Second operand 4 states. [2019-10-14 23:12:06,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:12:06,588 INFO L93 Difference]: Finished difference Result 107 states and 147 transitions. [2019-10-14 23:12:06,589 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 23:12:06,591 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-10-14 23:12:06,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:12:06,603 INFO L225 Difference]: With dead ends: 107 [2019-10-14 23:12:06,603 INFO L226 Difference]: Without dead ends: 47 [2019-10-14 23:12:06,608 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-14 23:12:06,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-10-14 23:12:06,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 43. [2019-10-14 23:12:06,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-10-14 23:12:06,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 53 transitions. [2019-10-14 23:12:06,665 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 53 transitions. Word has length 31 [2019-10-14 23:12:06,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:12:06,665 INFO L462 AbstractCegarLoop]: Abstraction has 43 states and 53 transitions. [2019-10-14 23:12:06,665 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-14 23:12:06,666 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 53 transitions. [2019-10-14 23:12:06,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-14 23:12:06,670 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:12:06,670 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:12:06,670 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:12:06,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:12:06,672 INFO L82 PathProgramCache]: Analyzing trace with hash -954650364, now seen corresponding path program 1 times [2019-10-14 23:12:06,673 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:12:06,673 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367956771] [2019-10-14 23:12:06,674 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:12:06,675 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:12:06,676 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:12:06,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:06,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:06,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:06,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:06,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:06,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:12:06,901 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367956771] [2019-10-14 23:12:06,902 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:12:06,902 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-14 23:12:06,902 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777575798] [2019-10-14 23:12:06,905 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-14 23:12:06,905 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:12:06,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-14 23:12:06,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-14 23:12:06,906 INFO L87 Difference]: Start difference. First operand 43 states and 53 transitions. Second operand 5 states. [2019-10-14 23:12:07,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:12:07,113 INFO L93 Difference]: Finished difference Result 64 states and 82 transitions. [2019-10-14 23:12:07,113 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-14 23:12:07,113 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-10-14 23:12:07,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:12:07,115 INFO L225 Difference]: With dead ends: 64 [2019-10-14 23:12:07,115 INFO L226 Difference]: Without dead ends: 51 [2019-10-14 23:12:07,116 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-14 23:12:07,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2019-10-14 23:12:07,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 45. [2019-10-14 23:12:07,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-10-14 23:12:07,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 56 transitions. [2019-10-14 23:12:07,126 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 56 transitions. Word has length 31 [2019-10-14 23:12:07,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:12:07,127 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 56 transitions. [2019-10-14 23:12:07,127 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-14 23:12:07,127 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 56 transitions. [2019-10-14 23:12:07,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-14 23:12:07,128 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:12:07,128 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:12:07,129 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:12:07,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:12:07,129 INFO L82 PathProgramCache]: Analyzing trace with hash -1456779385, now seen corresponding path program 1 times [2019-10-14 23:12:07,129 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:12:07,130 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812399642] [2019-10-14 23:12:07,130 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:12:07,130 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:12:07,130 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:12:07,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:07,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:07,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:07,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:07,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:07,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:12:07,339 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812399642] [2019-10-14 23:12:07,339 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:12:07,340 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-14 23:12:07,340 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635969243] [2019-10-14 23:12:07,340 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-14 23:12:07,341 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:12:07,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-14 23:12:07,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2019-10-14 23:12:07,341 INFO L87 Difference]: Start difference. First operand 45 states and 56 transitions. Second operand 11 states. [2019-10-14 23:12:07,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:12:07,732 INFO L93 Difference]: Finished difference Result 86 states and 109 transitions. [2019-10-14 23:12:07,732 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-14 23:12:07,732 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 32 [2019-10-14 23:12:07,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:12:07,734 INFO L225 Difference]: With dead ends: 86 [2019-10-14 23:12:07,734 INFO L226 Difference]: Without dead ends: 54 [2019-10-14 23:12:07,735 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2019-10-14 23:12:07,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2019-10-14 23:12:07,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 46. [2019-10-14 23:12:07,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2019-10-14 23:12:07,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 57 transitions. [2019-10-14 23:12:07,743 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 57 transitions. Word has length 32 [2019-10-14 23:12:07,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:12:07,743 INFO L462 AbstractCegarLoop]: Abstraction has 46 states and 57 transitions. [2019-10-14 23:12:07,743 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-14 23:12:07,743 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 57 transitions. [2019-10-14 23:12:07,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-10-14 23:12:07,745 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:12:07,745 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:12:07,745 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:12:07,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:12:07,745 INFO L82 PathProgramCache]: Analyzing trace with hash 1565838603, now seen corresponding path program 1 times [2019-10-14 23:12:07,746 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:12:07,746 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696027958] [2019-10-14 23:12:07,746 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:12:07,746 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:12:07,746 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:12:07,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:07,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:07,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:07,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:07,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:07,874 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:12:07,875 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696027958] [2019-10-14 23:12:07,875 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:12:07,875 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-14 23:12:07,876 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531281085] [2019-10-14 23:12:07,876 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-14 23:12:07,876 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:12:07,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-14 23:12:07,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-14 23:12:07,877 INFO L87 Difference]: Start difference. First operand 46 states and 57 transitions. Second operand 5 states. [2019-10-14 23:12:08,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:12:08,073 INFO L93 Difference]: Finished difference Result 87 states and 110 transitions. [2019-10-14 23:12:08,074 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-14 23:12:08,074 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2019-10-14 23:12:08,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:12:08,075 INFO L225 Difference]: With dead ends: 87 [2019-10-14 23:12:08,075 INFO L226 Difference]: Without dead ends: 50 [2019-10-14 23:12:08,076 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-14 23:12:08,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2019-10-14 23:12:08,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 49. [2019-10-14 23:12:08,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2019-10-14 23:12:08,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 60 transitions. [2019-10-14 23:12:08,095 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 60 transitions. Word has length 37 [2019-10-14 23:12:08,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:12:08,096 INFO L462 AbstractCegarLoop]: Abstraction has 49 states and 60 transitions. [2019-10-14 23:12:08,096 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-14 23:12:08,096 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 60 transitions. [2019-10-14 23:12:08,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-10-14 23:12:08,097 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:12:08,097 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:12:08,098 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:12:08,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:12:08,098 INFO L82 PathProgramCache]: Analyzing trace with hash 1627878217, now seen corresponding path program 1 times [2019-10-14 23:12:08,098 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:12:08,098 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440090166] [2019-10-14 23:12:08,099 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:12:08,099 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:12:08,100 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:12:08,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:08,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:08,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:08,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:08,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:08,320 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:12:08,320 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440090166] [2019-10-14 23:12:08,321 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1939111392] [2019-10-14 23:12:08,321 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:12:08,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:08,461 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-14 23:12:08,468 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:12:08,517 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:12:08,517 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-14 23:12:08,518 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 6] total 13 [2019-10-14 23:12:08,518 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034328998] [2019-10-14 23:12:08,518 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-14 23:12:08,519 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:12:08,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-14 23:12:08,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2019-10-14 23:12:08,520 INFO L87 Difference]: Start difference. First operand 49 states and 60 transitions. Second operand 13 states. [2019-10-14 23:12:08,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:12:08,899 INFO L93 Difference]: Finished difference Result 91 states and 114 transitions. [2019-10-14 23:12:08,900 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-14 23:12:08,900 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 37 [2019-10-14 23:12:08,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:12:08,901 INFO L225 Difference]: With dead ends: 91 [2019-10-14 23:12:08,901 INFO L226 Difference]: Without dead ends: 59 [2019-10-14 23:12:08,902 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2019-10-14 23:12:08,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2019-10-14 23:12:08,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 51. [2019-10-14 23:12:08,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2019-10-14 23:12:08,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 62 transitions. [2019-10-14 23:12:08,912 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 62 transitions. Word has length 37 [2019-10-14 23:12:08,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:12:08,912 INFO L462 AbstractCegarLoop]: Abstraction has 51 states and 62 transitions. [2019-10-14 23:12:08,912 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-14 23:12:08,912 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 62 transitions. [2019-10-14 23:12:08,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-10-14 23:12:08,914 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:12:08,914 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-14 23:12:09,119 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:12:09,120 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:12:09,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:12:09,121 INFO L82 PathProgramCache]: Analyzing trace with hash 866300553, now seen corresponding path program 1 times [2019-10-14 23:12:09,121 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:12:09,122 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961110370] [2019-10-14 23:12:09,122 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:12:09,122 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:12:09,122 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:12:09,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:09,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:09,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:09,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:09,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:09,272 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-10-14 23:12:09,273 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961110370] [2019-10-14 23:12:09,273 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:12:09,273 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-14 23:12:09,274 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460738739] [2019-10-14 23:12:09,274 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-14 23:12:09,274 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:12:09,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-14 23:12:09,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-14 23:12:09,278 INFO L87 Difference]: Start difference. First operand 51 states and 62 transitions. Second operand 8 states. [2019-10-14 23:12:09,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:12:09,490 INFO L93 Difference]: Finished difference Result 65 states and 81 transitions. [2019-10-14 23:12:09,490 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-14 23:12:09,491 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 42 [2019-10-14 23:12:09,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:12:09,492 INFO L225 Difference]: With dead ends: 65 [2019-10-14 23:12:09,492 INFO L226 Difference]: Without dead ends: 50 [2019-10-14 23:12:09,493 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2019-10-14 23:12:09,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2019-10-14 23:12:09,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2019-10-14 23:12:09,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2019-10-14 23:12:09,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 60 transitions. [2019-10-14 23:12:09,503 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 60 transitions. Word has length 42 [2019-10-14 23:12:09,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:12:09,503 INFO L462 AbstractCegarLoop]: Abstraction has 50 states and 60 transitions. [2019-10-14 23:12:09,503 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-14 23:12:09,503 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2019-10-14 23:12:09,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-10-14 23:12:09,505 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:12:09,505 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-14 23:12:09,505 INFO L410 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:12:09,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:12:09,506 INFO L82 PathProgramCache]: Analyzing trace with hash 380933720, now seen corresponding path program 1 times [2019-10-14 23:12:09,506 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:12:09,506 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761724126] [2019-10-14 23:12:09,507 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:12:09,507 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:12:09,508 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:12:09,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:09,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:10,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:10,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:10,830 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 41 [2019-10-14 23:12:11,108 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 52 [2019-10-14 23:12:11,353 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 77 [2019-10-14 23:12:11,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:12,136 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 37 [2019-10-14 23:12:12,162 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:12:12,162 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761724126] [2019-10-14 23:12:12,163 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [820261176] [2019-10-14 23:12:12,163 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:12:12,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:12,300 INFO L256 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 115 conjunts are in the unsatisfiable core [2019-10-14 23:12:12,308 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:12:12,411 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-10-14 23:12:12,412 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-14 23:12:12,419 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:12:12,420 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-14 23:12:12,420 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2019-10-14 23:12:12,461 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:12:12,462 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2019-10-14 23:12:12,463 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-14 23:12:12,492 INFO L567 ElimStorePlain]: treesize reduction 14, result has 67.4 percent of original size [2019-10-14 23:12:12,493 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-14 23:12:12,493 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:29 [2019-10-14 23:12:12,568 INFO L392 ElimStorePlain]: Different costs {0=[|v_#memory_int_44|, |v_#memory_$Pointer$.base_41|], 2=[|v_#memory_int_39|]} [2019-10-14 23:12:12,578 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-14 23:12:12,583 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2019-10-14 23:12:12,584 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-14 23:12:12,610 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:12:12,617 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-14 23:12:12,620 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2019-10-14 23:12:12,620 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-14 23:12:12,644 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:12:12,650 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-14 23:12:12,652 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2019-10-14 23:12:12,652 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-10-14 23:12:12,671 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:12:12,672 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-14 23:12:12,672 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:85, output treesize:51 [2019-10-14 23:12:12,765 INFO L392 ElimStorePlain]: Different costs {2=[|v_#memory_int_45|], 6=[|v_#memory_$Pointer$.base_42|]} [2019-10-14 23:12:12,770 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 11 [2019-10-14 23:12:12,771 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-14 23:12:12,806 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:12:12,811 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-14 23:12:12,853 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:12:12,854 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 67 treesize of output 116 [2019-10-14 23:12:12,856 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-14 23:12:12,857 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:12:12,858 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-14 23:12:12,859 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:12:12,863 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 3 xjuncts. [2019-10-14 23:12:12,933 INFO L567 ElimStorePlain]: treesize reduction 305, result has 20.2 percent of original size [2019-10-14 23:12:12,935 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-14 23:12:12,935 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:122, output treesize:75 [2019-10-14 23:12:13,564 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2019-10-14 23:12:13,565 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-14 23:12:13,594 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:12:13,596 INFO L392 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.offset_BEFORE_CALL_1|, |v_#memory_int_BEFORE_CALL_1|], 6=[|v_#memory_$Pointer$.base_BEFORE_CALL_1|]} [2019-10-14 23:12:13,606 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2019-10-14 23:12:13,607 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-14 23:12:13,633 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:12:13,638 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2019-10-14 23:12:13,639 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-10-14 23:12:13,665 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:12:13,695 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:12:13,695 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 69 treesize of output 67 [2019-10-14 23:12:13,697 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:12:13,698 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:12:13,700 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:12:13,700 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:12:13,702 INFO L496 ElimStorePlain]: Start of recursive call 5: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-10-14 23:12:13,749 INFO L567 ElimStorePlain]: treesize reduction 28, result has 50.0 percent of original size [2019-10-14 23:12:13,750 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-14 23:12:13,750 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:124, output treesize:13 [2019-10-14 23:12:13,949 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-14 23:12:13,980 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:12:13,983 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-14 23:12:14,005 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:12:14,006 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2019-10-14 23:12:14,006 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:92, output treesize:68 [2019-10-14 23:12:15,216 WARN L191 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 42 [2019-10-14 23:12:16,497 WARN L191 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 48 [2019-10-14 23:12:17,879 WARN L191 SmtUtils]: Spent 1.26 s on a formula simplification that was a NOOP. DAG size: 52 [2019-10-14 23:12:19,165 WARN L191 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 57 [2019-10-14 23:12:19,182 INFO L392 ElimStorePlain]: Different costs {2=[|v_#memory_int_42|, |v_#memory_int_43|], 14=[|v_#memory_$Pointer$.offset_42|], 24=[|v_#memory_$Pointer$.base_44|]} [2019-10-14 23:12:19,195 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-14 23:12:19,464 WARN L191 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2019-10-14 23:12:19,464 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:12:19,471 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-14 23:12:19,661 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2019-10-14 23:12:19,662 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:12:19,667 INFO L496 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-14 23:12:19,855 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2019-10-14 23:12:19,855 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:12:19,859 INFO L496 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-14 23:12:20,045 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2019-10-14 23:12:20,046 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:12:20,047 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 4 dim-2 vars, End of recursive call: 7 dim-0 vars, and 1 xjuncts. [2019-10-14 23:12:20,047 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 7 variables, input treesize:305, output treesize:716 [2019-10-14 23:12:22,562 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2019-10-14 23:12:22,595 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-14 23:12:22,988 WARN L191 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-10-14 23:12:22,988 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:12:22,989 INFO L496 ElimStorePlain]: Start of recursive call 1: 10 dim-0 vars, 1 dim-2 vars, End of recursive call: 11 dim-0 vars, and 1 xjuncts. [2019-10-14 23:12:22,990 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 11 variables, input treesize:1634, output treesize:1824 [2019-10-14 23:12:42,133 WARN L191 SmtUtils]: Spent 1.78 s on a formula simplification that was a NOOP. DAG size: 117 [2019-10-14 23:12:42,354 INFO L235 Elim1Store]: Index analysis took 145 ms [2019-10-14 23:12:42,366 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:12:42,367 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 38 [2019-10-14 23:12:42,368 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-14 23:12:43,879 WARN L191 SmtUtils]: Spent 1.51 s on a formula simplification that was a NOOP. DAG size: 114 [2019-10-14 23:12:43,880 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:12:43,885 INFO L392 ElimStorePlain]: Different costs {9=[|v_#memory_int_BEFORE_CALL_4|], 33=[|v_#memory_$Pointer$.offset_BEFORE_CALL_4|], 108=[|v_old(#memory_$Pointer$.base)_AFTER_CALL_6|]} [2019-10-14 23:12:43,935 INFO L172 IndexEqualityManager]: detected equality via solver [2019-10-14 23:12:43,954 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-14 23:12:43,989 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-14 23:12:44,072 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-14 23:12:44,237 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-14 23:12:44,238 INFO L235 Elim1Store]: Index analysis took 303 ms [2019-10-14 23:12:44,401 WARN L191 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-10-14 23:12:44,402 INFO L341 Elim1Store]: treesize reduction 15, result has 90.3 percent of original size [2019-10-14 23:12:44,403 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 597 treesize of output 216 [2019-10-14 23:12:44,404 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-14 23:12:46,647 WARN L191 SmtUtils]: Spent 2.24 s on a formula simplification. DAG size of input: 136 DAG size of output: 118 [2019-10-14 23:12:46,647 INFO L567 ElimStorePlain]: treesize reduction 84, result has 94.6 percent of original size [2019-10-14 23:12:46,653 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-14 23:12:46,672 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-14 23:12:46,683 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-14 23:12:47,326 WARN L191 SmtUtils]: Spent 635.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 107 [2019-10-14 23:12:47,327 INFO L341 Elim1Store]: treesize reduction 591, result has 44.4 percent of original size [2019-10-14 23:12:47,328 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 1045 treesize of output 1083 [2019-10-14 23:12:47,331 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-10-14 23:12:48,607 WARN L191 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 165 DAG size of output: 118 [2019-10-14 23:12:48,607 INFO L567 ElimStorePlain]: treesize reduction 754, result has 53.3 percent of original size [2019-10-14 23:12:48,611 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-14 23:12:48,626 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-14 23:12:48,638 INFO L189 IndexEqualityManager]: detected not equals via solver