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/sll2c_insert_unequal.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:12:39,646 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:12:39,649 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:12:39,668 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:12:39,668 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:12:39,671 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:12:39,673 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:12:39,686 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:12:39,688 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:12:39,690 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:12:39,692 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:12:39,693 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:12:39,694 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:12:39,698 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:12:39,701 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:12:39,703 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:12:39,705 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:12:39,707 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:12:39,710 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:12:39,715 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:12:39,720 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:12:39,721 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:12:39,724 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:12:39,726 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:12:39,730 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 23:12:39,731 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 23:12:39,731 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 23:12:39,733 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 23:12:39,734 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 23:12:39,736 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 23:12:39,737 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:12:39,738 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:12:39,738 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:12:39,739 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:12:39,741 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:12:39,741 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:12:39,742 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:12:39,742 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:12:39,742 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:12:39,745 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:12:39,746 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:12:39,747 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 23:12:39,767 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:12:39,768 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:12:39,770 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:12:39,770 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:12:39,770 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:12:39,771 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:12:39,771 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:12:39,771 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:12:39,771 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:12:39,771 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:12:39,773 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:12:39,773 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:12:39,773 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:12:39,774 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:12:39,774 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:12:39,774 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:12:39,774 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:12:39,774 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:12:39,775 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:12:39,775 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:12:39,775 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:12:39,775 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:12:39,775 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:12:39,776 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:12:39,776 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:12:39,776 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:12:39,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:12:39,776 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:12:39,777 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:12:40,139 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:12:40,160 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:12:40,164 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:12:40,166 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:12:40,166 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:12:40,167 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/sll2c_insert_unequal.i [2019-10-14 23:12:40,239 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/413662081/241e7bcb5fde4ae0997bace887d519e0/FLAGe544620be [2019-10-14 23:12:40,783 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:12:40,784 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/sll2c_insert_unequal.i [2019-10-14 23:12:40,797 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/413662081/241e7bcb5fde4ae0997bace887d519e0/FLAGe544620be [2019-10-14 23:12:41,093 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/413662081/241e7bcb5fde4ae0997bace887d519e0 [2019-10-14 23:12:41,103 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:12:41,104 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:12:41,105 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:12:41,105 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:12:41,108 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:12:41,109 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:12:41" (1/1) ... [2019-10-14 23:12:41,111 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25ce1afb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:12:41, skipping insertion in model container [2019-10-14 23:12:41,112 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:12:41" (1/1) ... [2019-10-14 23:12:41,118 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:12:41,167 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:12:41,626 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:12:41,641 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:12:41,689 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:12:41,754 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:12:41,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:12:41 WrapperNode [2019-10-14 23:12:41,754 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:12:41,755 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:12:41,755 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:12:41,756 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:12:41,770 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:12:41" (1/1) ... [2019-10-14 23:12:41,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:12:41" (1/1) ... [2019-10-14 23:12:41,787 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:12:41" (1/1) ... [2019-10-14 23:12:41,788 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:12:41" (1/1) ... [2019-10-14 23:12:41,808 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:12:41" (1/1) ... [2019-10-14 23:12:41,815 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:12:41" (1/1) ... [2019-10-14 23:12:41,819 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:12:41" (1/1) ... [2019-10-14 23:12:41,826 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:12:41,827 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:12:41,827 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:12:41,827 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:12:41,828 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:12:41" (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 23:12:41,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:12:41,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:12:41,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-14 23:12:41,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-14 23:12:41,887 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-10-14 23:12:41,888 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2019-10-14 23:12:41,888 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_create [2019-10-14 23:12:41,888 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_destroy [2019-10-14 23:12:41,889 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_insert [2019-10-14 23:12:41,889 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:12:41,889 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:12:41,889 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-14 23:12:41,889 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-14 23:12:41,890 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-14 23:12:41,890 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-14 23:12:41,891 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-14 23:12:41,893 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-14 23:12:41,893 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-14 23:12:41,893 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-14 23:12:41,894 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-14 23:12:41,894 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-14 23:12:41,894 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-14 23:12:41,894 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-14 23:12:41,894 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-14 23:12:41,895 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-14 23:12:41,895 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-14 23:12:41,895 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-14 23:12:41,895 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-14 23:12:41,896 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-14 23:12:41,896 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-14 23:12:41,896 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-14 23:12:41,896 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-14 23:12:41,896 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-14 23:12:41,896 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-14 23:12:41,897 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-14 23:12:41,897 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-14 23:12:41,897 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-14 23:12:41,898 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-14 23:12:41,898 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-14 23:12:41,898 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-14 23:12:41,898 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-14 23:12:41,899 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-14 23:12:41,899 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-14 23:12:41,899 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-14 23:12:41,899 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-14 23:12:41,899 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-14 23:12:41,900 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-14 23:12:41,900 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-14 23:12:41,900 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-14 23:12:41,900 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-14 23:12:41,900 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-14 23:12:41,900 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-14 23:12:41,900 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-14 23:12:41,901 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-14 23:12:41,901 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-14 23:12:41,901 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-14 23:12:41,901 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-14 23:12:41,901 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-14 23:12:41,901 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-14 23:12:41,902 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-14 23:12:41,902 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-14 23:12:41,902 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-14 23:12:41,902 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-14 23:12:41,902 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-14 23:12:41,902 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-14 23:12:41,902 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-14 23:12:41,903 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-14 23:12:41,903 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-14 23:12:41,904 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-14 23:12:41,904 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-14 23:12:41,904 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-14 23:12:41,904 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-14 23:12:41,905 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-14 23:12:41,905 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-14 23:12:41,905 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-14 23:12:41,906 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-14 23:12:41,906 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-14 23:12:41,906 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-14 23:12:41,906 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-14 23:12:41,906 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-14 23:12:41,906 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-14 23:12:41,907 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-14 23:12:41,907 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-14 23:12:41,907 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-14 23:12:41,908 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-14 23:12:41,908 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-14 23:12:41,908 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-14 23:12:41,909 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-14 23:12:41,909 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-14 23:12:41,909 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-14 23:12:41,910 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-14 23:12:41,910 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-14 23:12:41,910 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-14 23:12:41,911 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-14 23:12:41,911 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-14 23:12:41,911 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-14 23:12:41,911 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-14 23:12:41,911 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-14 23:12:41,911 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-14 23:12:41,912 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-14 23:12:41,912 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-14 23:12:41,912 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-14 23:12:41,912 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-14 23:12:41,912 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-14 23:12:41,912 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-14 23:12:41,912 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-14 23:12:41,913 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-14 23:12:41,913 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-14 23:12:41,913 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-14 23:12:41,913 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-14 23:12:41,913 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-14 23:12:41,913 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-14 23:12:41,913 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-14 23:12:41,913 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-14 23:12:41,914 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-14 23:12:41,914 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-14 23:12:41,914 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-10-14 23:12:41,914 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2019-10-14 23:12:41,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-14 23:12:41,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-14 23:12:41,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 23:12:41,915 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_create [2019-10-14 23:12:41,916 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_destroy [2019-10-14 23:12:41,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-14 23:12:41,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 23:12:41,916 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_insert [2019-10-14 23:12:41,916 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:12:41,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 23:12:41,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-14 23:12:41,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 23:12:41,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:12:41,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:12:42,313 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-10-14 23:12:42,608 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:12:42,608 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-14 23:12:42,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:12:42 BoogieIcfgContainer [2019-10-14 23:12:42,610 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:12:42,611 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:12:42,611 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:12:42,615 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:12:42,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:12:41" (1/3) ... [2019-10-14 23:12:42,616 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b7a6669 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:12:42, skipping insertion in model container [2019-10-14 23:12:42,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:12:41" (2/3) ... [2019-10-14 23:12:42,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b7a6669 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:12:42, skipping insertion in model container [2019-10-14 23:12:42,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:12:42" (3/3) ... [2019-10-14 23:12:42,619 INFO L109 eAbstractionObserver]: Analyzing ICFG sll2c_insert_unequal.i [2019-10-14 23:12:42,629 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:12:42,637 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:12:42,649 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:12:42,674 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:12:42,674 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:12:42,674 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:12:42,674 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:12:42,675 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:12:42,675 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:12:42,675 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:12:42,675 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:12:42,695 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states. [2019-10-14 23:12:42,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-10-14 23:12:42,703 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:12:42,704 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] [2019-10-14 23:12:42,706 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:12:42,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:12:42,713 INFO L82 PathProgramCache]: Analyzing trace with hash -1696262195, now seen corresponding path program 1 times [2019-10-14 23:12:42,722 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:12:42,722 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954815420] [2019-10-14 23:12:42,723 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:12:42,723 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:12:42,723 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:12:42,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:42,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:43,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:43,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:43,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:43,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:43,099 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-14 23:12:43,099 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954815420] [2019-10-14 23:12:43,100 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:12:43,100 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-14 23:12:43,101 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276491935] [2019-10-14 23:12:43,106 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 23:12:43,106 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:12:43,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 23:12:43,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-14 23:12:43,124 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 4 states. [2019-10-14 23:12:43,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:12:43,390 INFO L93 Difference]: Finished difference Result 113 states and 151 transitions. [2019-10-14 23:12:43,390 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 23:12:43,391 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37 [2019-10-14 23:12:43,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:12:43,401 INFO L225 Difference]: With dead ends: 113 [2019-10-14 23:12:43,402 INFO L226 Difference]: Without dead ends: 46 [2019-10-14 23:12:43,405 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 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 23:12:43,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-10-14 23:12:43,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2019-10-14 23:12:43,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2019-10-14 23:12:43,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 56 transitions. [2019-10-14 23:12:43,451 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 56 transitions. Word has length 37 [2019-10-14 23:12:43,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:12:43,453 INFO L462 AbstractCegarLoop]: Abstraction has 46 states and 56 transitions. [2019-10-14 23:12:43,453 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-14 23:12:43,453 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 56 transitions. [2019-10-14 23:12:43,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-10-14 23:12:43,456 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:12:43,456 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] [2019-10-14 23:12:43,456 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:12:43,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:12:43,457 INFO L82 PathProgramCache]: Analyzing trace with hash -734133097, now seen corresponding path program 1 times [2019-10-14 23:12:43,457 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:12:43,457 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773390506] [2019-10-14 23:12:43,458 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:12:43,458 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:12:43,458 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:12:43,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:43,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:43,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:43,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:43,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:43,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:43,725 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-14 23:12:43,725 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773390506] [2019-10-14 23:12:43,726 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:12:43,726 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-14 23:12:43,726 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646069629] [2019-10-14 23:12:43,729 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-14 23:12:43,733 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:12:43,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-14 23:12:43,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-14 23:12:43,734 INFO L87 Difference]: Start difference. First operand 46 states and 56 transitions. Second operand 5 states. [2019-10-14 23:12:43,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:12:43,923 INFO L93 Difference]: Finished difference Result 66 states and 82 transitions. [2019-10-14 23:12:43,923 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-14 23:12:43,923 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2019-10-14 23:12:43,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:12:43,932 INFO L225 Difference]: With dead ends: 66 [2019-10-14 23:12:43,932 INFO L226 Difference]: Without dead ends: 50 [2019-10-14 23:12:43,935 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 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 23:12:43,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2019-10-14 23:12:43,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 48. [2019-10-14 23:12:43,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2019-10-14 23:12:43,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 59 transitions. [2019-10-14 23:12:43,955 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 59 transitions. Word has length 37 [2019-10-14 23:12:43,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:12:43,956 INFO L462 AbstractCegarLoop]: Abstraction has 48 states and 59 transitions. [2019-10-14 23:12:43,956 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-14 23:12:43,956 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 59 transitions. [2019-10-14 23:12:43,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-10-14 23:12:43,957 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:12:43,957 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] [2019-10-14 23:12:43,958 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:12:43,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:12:43,958 INFO L82 PathProgramCache]: Analyzing trace with hash -2047030169, now seen corresponding path program 1 times [2019-10-14 23:12:43,958 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:12:43,959 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405986717] [2019-10-14 23:12:43,959 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:12:43,959 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:12:43,959 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:12:44,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:44,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:44,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:44,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:44,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:44,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:44,195 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-14 23:12:44,196 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405986717] [2019-10-14 23:12:44,196 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:12:44,196 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-14 23:12:44,196 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405831267] [2019-10-14 23:12:44,201 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-14 23:12:44,202 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:12:44,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-14 23:12:44,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-14 23:12:44,203 INFO L87 Difference]: Start difference. First operand 48 states and 59 transitions. Second operand 7 states. [2019-10-14 23:12:44,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:12:44,467 INFO L93 Difference]: Finished difference Result 86 states and 107 transitions. [2019-10-14 23:12:44,468 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-14 23:12:44,468 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2019-10-14 23:12:44,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:12:44,470 INFO L225 Difference]: With dead ends: 86 [2019-10-14 23:12:44,470 INFO L226 Difference]: Without dead ends: 51 [2019-10-14 23:12:44,471 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2019-10-14 23:12:44,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2019-10-14 23:12:44,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 49. [2019-10-14 23:12:44,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2019-10-14 23:12:44,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 60 transitions. [2019-10-14 23:12:44,483 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 60 transitions. Word has length 38 [2019-10-14 23:12:44,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:12:44,483 INFO L462 AbstractCegarLoop]: Abstraction has 49 states and 60 transitions. [2019-10-14 23:12:44,486 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-14 23:12:44,486 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 60 transitions. [2019-10-14 23:12:44,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-14 23:12:44,488 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:12:44,489 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:12:44,489 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:12:44,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:12:44,490 INFO L82 PathProgramCache]: Analyzing trace with hash 651664031, now seen corresponding path program 1 times [2019-10-14 23:12:44,490 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:12:44,490 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735359346] [2019-10-14 23:12:44,491 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:12:44,491 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:12:44,491 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:12:44,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:44,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:44,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:45,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:45,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:45,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:45,638 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2019-10-14 23:12:46,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:46,452 WARN L191 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 38 [2019-10-14 23:12:46,491 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:12:46,492 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735359346] [2019-10-14 23:12:46,492 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [732612286] [2019-10-14 23:12:46,492 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 23:12:46,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:46,723 INFO L256 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 125 conjunts are in the unsatisfiable core [2019-10-14 23:12:46,733 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:12:46,835 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 23:12:46,835 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-14 23:12:46,842 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:12:46,842 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-14 23:12:46,843 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-10-14 23:12:46,983 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 9 [2019-10-14 23:12:46,984 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-14 23:12:46,996 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:12:46,997 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-14 23:12:46,997 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:27 [2019-10-14 23:12:47,086 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:12:47,087 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 23:12:47,088 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-14 23:12:47,114 INFO L567 ElimStorePlain]: treesize reduction 14, result has 68.2 percent of original size [2019-10-14 23:12:47,115 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-14 23:12:47,115 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:32, output treesize:30 [2019-10-14 23:12:47,185 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 23 treesize of output 11 [2019-10-14 23:12:47,185 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-14 23:12:47,197 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:12:47,197 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-14 23:12:47,198 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:43, output treesize:28 [2019-10-14 23:12:47,273 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 23 treesize of output 11 [2019-10-14 23:12:47,274 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-14 23:12:47,286 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:12:47,287 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-14 23:12:47,288 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:43, output treesize:28 [2019-10-14 23:12:47,582 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 15 treesize of output 7 [2019-10-14 23:12:47,583 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-14 23:12:47,610 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:12:47,646 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 23:12:47,646 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-14 23:12:47,662 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:12:47,674 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 27 treesize of output 15 [2019-10-14 23:12:47,674 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 23:12:47,691 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:12:47,698 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2019-10-14 23:12:47,698 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-10-14 23:12:47,714 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:12:47,715 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 23:12:47,716 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:63, output treesize:13 [2019-10-14 23:12:47,889 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 23:12:47,907 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:12:47,908 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2019-10-14 23:12:47,908 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:83, output treesize:71 [2019-10-14 23:12:56,048 WARN L191 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 42 [2019-10-14 23:13:00,201 WARN L191 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 48 [2019-10-14 23:13:00,458 INFO L392 ElimStorePlain]: Different costs {2=[|v_#memory_int_38|], 10=[|v_#memory_$Pointer$.offset_44|, |v_#memory_$Pointer$.base_44|]} [2019-10-14 23:13:00,464 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 23:13:00,554 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:13:00,560 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 23:13:00,640 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:13:00,644 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 23:13:00,721 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:13:00,723 INFO L496 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 3 dim-2 vars, End of recursive call: 10 dim-0 vars, and 1 xjuncts. [2019-10-14 23:13:00,723 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 10 variables, input treesize:233, output treesize:558 [2019-10-14 23:13:21,814 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-10-14 23:13:21,881 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:13:21,882 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 20 treesize of output 30 [2019-10-14 23:13:21,883 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-14 23:13:22,074 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2019-10-14 23:13:22,075 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:13:22,078 INFO L392 ElimStorePlain]: Different costs {8=[|v_#memory_int_BEFORE_CALL_4|], 20=[|v_#memory_$Pointer$.offset_BEFORE_CALL_4|, |v_old(#memory_$Pointer$.base)_AFTER_CALL_5|]} [2019-10-14 23:13:22,096 INFO L172 IndexEqualityManager]: detected equality via solver [2019-10-14 23:13:22,100 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-14 23:13:22,104 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-14 23:13:22,144 INFO L341 Elim1Store]: treesize reduction 36, result has 42.9 percent of original size [2019-10-14 23:13:22,145 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 197 treesize of output 82 [2019-10-14 23:13:22,146 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-14 23:13:22,349 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2019-10-14 23:13:22,350 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:13:22,355 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-14 23:13:22,361 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-14 23:13:22,362 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-14 23:13:22,596 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2019-10-14 23:13:22,596 INFO L341 Elim1Store]: treesize reduction 78, result has 77.5 percent of original size [2019-10-14 23:13:22,597 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 346 treesize of output 453 [2019-10-14 23:13:22,599 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-10-14 23:13:22,892 WARN L191 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 80 [2019-10-14 23:13:22,893 INFO L567 ElimStorePlain]: treesize reduction 211, result has 59.7 percent of original size [2019-10-14 23:13:22,896 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-14 23:13:22,908 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-14 23:13:22,909 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-14 23:13:23,074 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 52 [2019-10-14 23:13:23,076 INFO L341 Elim1Store]: treesize reduction 44, result has 74.0 percent of original size [2019-10-14 23:13:23,076 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 154 treesize of output 169 [2019-10-14 23:13:23,079 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-14 23:13:23,080 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-14 23:13:23,081 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:13:23,087 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-14 23:13:23,088 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:13:23,090 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-14 23:13:23,091 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:13:23,094 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-10-14 23:13:23,459 WARN L191 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 82 [2019-10-14 23:13:23,459 INFO L567 ElimStorePlain]: treesize reduction 638, result has 31.5 percent of original size [2019-10-14 23:13:23,461 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:13:23,463 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:13:23,464 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:13:23,465 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:13:23,468 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:13:23,469 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:13:23,470 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:13:23,471 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:13:23,472 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:13:23,473 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:13:23,477 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:13:23,478 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:13:23,479 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:13:23,480 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:13:23,481 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:13:23,482 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:13:23,483 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:13:23,484 INFO L496 ElimStorePlain]: Start of recursive call 1: 11 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-14 23:13:23,485 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 15 variables, input treesize:613, output treesize:658 [2019-10-14 23:13:23,702 INFO L392 ElimStorePlain]: Different costs {0=[|#memory_$Pointer$.offset|], 1=[|#memory_$Pointer$.base|]} [2019-10-14 23:13:23,707 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 15 treesize of output 7 [2019-10-14 23:13:23,707 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-14 23:13:23,725 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:13:23,732 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:13:23,732 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 36 [2019-10-14 23:13:23,733 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:13:23,734 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-14 23:13:23,752 INFO L567 ElimStorePlain]: treesize reduction 4, result has 82.6 percent of original size [2019-10-14 23:13:23,752 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-14 23:13:23,753 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:74, output treesize:14 [2019-10-14 23:13:23,768 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 15 treesize of output 7 [2019-10-14 23:13:23,769 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-14 23:13:23,791 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:13:23,791 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-14 23:13:23,792 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:7 [2019-10-14 23:13:23,806 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:13:23,807 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-14 23:13:23,807 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 44 [2019-10-14 23:13:23,807 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127865330] [2019-10-14 23:13:23,808 INFO L442 AbstractCegarLoop]: Interpolant automaton has 44 states [2019-10-14 23:13:23,808 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:13:23,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2019-10-14 23:13:23,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=1746, Unknown=13, NotChecked=0, Total=1892 [2019-10-14 23:13:23,810 INFO L87 Difference]: Start difference. First operand 49 states and 60 transitions. Second operand 44 states.