/usr/bin/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/dll2c_append_equal.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-06 21:15:49,709 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 21:15:49,712 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 21:15:49,729 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-06 21:15:49,729 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-06 21:15:49,732 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-06 21:15:49,734 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-06 21:15:49,744 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-06 21:15:49,745 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-06 21:15:49,747 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-06 21:15:49,749 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-06 21:15:49,751 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-06 21:15:49,752 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-06 21:15:49,755 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-06 21:15:49,757 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-06 21:15:49,760 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-06 21:15:49,762 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-06 21:15:49,766 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-06 21:15:49,767 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-06 21:15:49,772 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-06 21:15:49,777 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-06 21:15:49,780 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-06 21:15:49,782 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-06 21:15:49,783 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-06 21:15:49,785 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-06 21:15:49,785 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-06 21:15:49,785 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-06 21:15:49,786 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-06 21:15:49,786 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-06 21:15:49,787 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-06 21:15:49,787 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-06 21:15:49,788 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-06 21:15:49,789 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-06 21:15:49,790 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-06 21:15:49,791 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-06 21:15:49,791 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-06 21:15:49,792 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-06 21:15:49,792 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-06 21:15:49,792 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 21:15:49,793 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 21:15:49,794 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 21:15:49,795 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 [2019-11-06 21:15:49,809 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 21:15:49,810 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 21:15:49,811 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 21:15:49,811 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 21:15:49,811 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 21:15:49,812 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 21:15:49,812 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 21:15:49,812 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 21:15:49,812 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 21:15:49,812 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 21:15:49,813 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 21:15:49,813 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 21:15:49,813 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 21:15:49,813 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 21:15:49,813 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 21:15:49,814 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 21:15:49,814 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 21:15:49,814 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 21:15:49,814 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 21:15:49,815 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 21:15:49,815 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 21:15:49,815 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 21:15:49,815 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 21:15:49,815 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 21:15:49,816 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 21:15:49,816 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 21:15:49,816 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 21:15:49,816 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 21:15:49,816 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-06 21:15:50,124 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 21:15:50,137 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 21:15:50,140 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 21:15:50,142 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 21:15:50,142 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 21:15:50,143 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/dll2c_append_equal.i [2019-11-06 21:15:50,219 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5f6a7081/458260c90a6043f8a2f6b38b221cca1c/FLAG6e9b18da7 [2019-11-06 21:15:50,767 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 21:15:50,769 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/dll2c_append_equal.i [2019-11-06 21:15:50,793 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5f6a7081/458260c90a6043f8a2f6b38b221cca1c/FLAG6e9b18da7 [2019-11-06 21:15:51,089 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5f6a7081/458260c90a6043f8a2f6b38b221cca1c [2019-11-06 21:15:51,101 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 21:15:51,103 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 21:15:51,107 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 21:15:51,107 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 21:15:51,111 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 21:15:51,112 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:15:51" (1/1) ... [2019-11-06 21:15:51,115 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dbc7c7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:15:51, skipping insertion in model container [2019-11-06 21:15:51,116 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:15:51" (1/1) ... [2019-11-06 21:15:51,125 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 21:15:51,179 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 21:15:51,679 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 21:15:51,691 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 21:15:51,762 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 21:15:51,830 INFO L192 MainTranslator]: Completed translation [2019-11-06 21:15:51,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:15:51 WrapperNode [2019-11-06 21:15:51,831 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 21:15:51,832 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 21:15:51,832 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 21:15:51,832 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 21:15:51,844 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:15:51" (1/1) ... [2019-11-06 21:15:51,844 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:15:51" (1/1) ... [2019-11-06 21:15:51,867 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:15:51" (1/1) ... [2019-11-06 21:15:51,867 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:15:51" (1/1) ... [2019-11-06 21:15:51,888 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:15:51" (1/1) ... [2019-11-06 21:15:51,894 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:15:51" (1/1) ... [2019-11-06 21:15:51,897 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:15:51" (1/1) ... [2019-11-06 21:15:51,904 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 21:15:51,905 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 21:15:51,905 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 21:15:51,905 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 21:15:51,906 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:15:51" (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 [2019-11-06 21:15:51,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 21:15:51,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 21:15:51,975 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-06 21:15:51,975 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-06 21:15:51,976 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-11-06 21:15:51,977 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2019-11-06 21:15:51,977 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_create [2019-11-06 21:15:51,977 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_destroy [2019-11-06 21:15:51,979 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_append [2019-11-06 21:15:51,979 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 21:15:51,979 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 21:15:51,979 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-06 21:15:51,980 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-06 21:15:51,980 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-06 21:15:51,981 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-06 21:15:51,981 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-06 21:15:51,983 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-06 21:15:51,984 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-06 21:15:51,984 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-06 21:15:51,984 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-06 21:15:51,984 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-06 21:15:51,985 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-06 21:15:51,985 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-06 21:15:51,986 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-06 21:15:51,986 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-06 21:15:51,987 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-06 21:15:51,987 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-06 21:15:51,988 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-06 21:15:51,988 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-06 21:15:51,988 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-06 21:15:51,988 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-06 21:15:51,988 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-06 21:15:51,988 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-06 21:15:51,988 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-06 21:15:51,989 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-06 21:15:51,989 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-06 21:15:51,989 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-06 21:15:51,989 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-06 21:15:51,989 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-06 21:15:51,989 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-06 21:15:51,989 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-06 21:15:51,990 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-06 21:15:51,990 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-06 21:15:51,990 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-06 21:15:51,990 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-06 21:15:51,990 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-06 21:15:51,991 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-06 21:15:51,992 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-06 21:15:51,992 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-06 21:15:51,992 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-06 21:15:51,992 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-06 21:15:51,992 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-06 21:15:51,992 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-06 21:15:51,992 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-06 21:15:51,993 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-06 21:15:51,993 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-06 21:15:51,993 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-06 21:15:51,993 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-06 21:15:51,993 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-06 21:15:51,995 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-06 21:15:51,995 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-06 21:15:51,996 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-06 21:15:51,996 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-06 21:15:51,996 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-06 21:15:51,996 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-06 21:15:51,997 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-06 21:15:51,997 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-06 21:15:51,997 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-11-06 21:15:51,998 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-06 21:15:51,998 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-06 21:15:51,998 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-06 21:15:51,998 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-06 21:15:51,999 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-06 21:15:51,999 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-06 21:15:51,999 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-06 21:15:52,000 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-06 21:15:52,000 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-06 21:15:52,000 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-06 21:15:52,000 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-06 21:15:52,000 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-06 21:15:52,001 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-06 21:15:52,001 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-06 21:15:52,001 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-06 21:15:52,002 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-06 21:15:52,002 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-06 21:15:52,002 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-06 21:15:52,002 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-06 21:15:52,002 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-06 21:15:52,002 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-06 21:15:52,002 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-06 21:15:52,003 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-06 21:15:52,003 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-06 21:15:52,003 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-06 21:15:52,004 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-06 21:15:52,004 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-06 21:15:52,004 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-06 21:15:52,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-06 21:15:52,004 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-06 21:15:52,004 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-06 21:15:52,004 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-06 21:15:52,005 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-06 21:15:52,005 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-06 21:15:52,005 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-06 21:15:52,005 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-06 21:15:52,005 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-06 21:15:52,005 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-06 21:15:52,005 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-06 21:15:52,006 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-06 21:15:52,006 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-06 21:15:52,006 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-06 21:15:52,006 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-06 21:15:52,006 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-06 21:15:52,006 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-06 21:15:52,006 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-06 21:15:52,006 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-06 21:15:52,007 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-06 21:15:52,007 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-11-06 21:15:52,007 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2019-11-06 21:15:52,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-06 21:15:52,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-06 21:15:52,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-06 21:15:52,007 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_create [2019-11-06 21:15:52,008 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_destroy [2019-11-06 21:15:52,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-06 21:15:52,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-06 21:15:52,008 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_append [2019-11-06 21:15:52,008 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 21:15:52,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-06 21:15:52,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-06 21:15:52,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-06 21:15:52,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 21:15:52,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 21:15:52,556 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-11-06 21:15:52,726 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 21:15:52,726 INFO L284 CfgBuilder]: Removed 3 assume(true) statements. [2019-11-06 21:15:52,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:15:52 BoogieIcfgContainer [2019-11-06 21:15:52,727 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 21:15:52,731 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 21:15:52,731 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 21:15:52,735 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 21:15:52,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:15:51" (1/3) ... [2019-11-06 21:15:52,741 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@161fc816 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:15:52, skipping insertion in model container [2019-11-06 21:15:52,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:15:51" (2/3) ... [2019-11-06 21:15:52,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@161fc816 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:15:52, skipping insertion in model container [2019-11-06 21:15:52,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:15:52" (3/3) ... [2019-11-06 21:15:52,744 INFO L109 eAbstractionObserver]: Analyzing ICFG dll2c_append_equal.i [2019-11-06 21:15:52,755 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 21:15:52,765 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 21:15:52,777 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 21:15:52,804 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 21:15:52,805 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 21:15:52,805 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 21:15:52,805 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 21:15:52,805 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 21:15:52,805 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 21:15:52,806 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 21:15:52,806 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 21:15:52,823 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2019-11-06 21:15:52,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-11-06 21:15:52,830 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:15:52,831 INFO L410 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] [2019-11-06 21:15:52,833 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:15:52,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:15:52,839 INFO L82 PathProgramCache]: Analyzing trace with hash 1733597986, now seen corresponding path program 1 times [2019-11-06 21:15:52,848 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:15:52,849 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678500345] [2019-11-06 21:15:52,849 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:15:52,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:15:53,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:15:53,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:15:53,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:15:53,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:15:53,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:15:53,258 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-11-06 21:15:53,260 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678500345] [2019-11-06 21:15:53,261 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:15:53,262 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-06 21:15:53,262 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47167670] [2019-11-06 21:15:53,271 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-06 21:15:53,271 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:15:53,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-06 21:15:53,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-06 21:15:53,285 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 4 states. [2019-11-06 21:15:53,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:15:53,528 INFO L93 Difference]: Finished difference Result 97 states and 121 transitions. [2019-11-06 21:15:53,529 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-06 21:15:53,530 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2019-11-06 21:15:53,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:15:53,539 INFO L225 Difference]: With dead ends: 97 [2019-11-06 21:15:53,539 INFO L226 Difference]: Without dead ends: 39 [2019-11-06 21:15:53,543 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-06 21:15:53,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-06 21:15:53,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-11-06 21:15:53,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-06 21:15:53,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 45 transitions. [2019-11-06 21:15:53,594 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 45 transitions. Word has length 36 [2019-11-06 21:15:53,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:15:53,596 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 45 transitions. [2019-11-06 21:15:53,596 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-06 21:15:53,596 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 45 transitions. [2019-11-06 21:15:53,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-11-06 21:15:53,601 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:15:53,601 INFO L410 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] [2019-11-06 21:15:53,601 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:15:53,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:15:53,602 INFO L82 PathProgramCache]: Analyzing trace with hash -1013977802, now seen corresponding path program 1 times [2019-11-06 21:15:53,602 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:15:53,602 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428398428] [2019-11-06 21:15:53,603 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:15:53,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:15:53,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:15:53,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:15:53,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:15:53,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:15:53,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:15:53,878 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-11-06 21:15:53,878 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428398428] [2019-11-06 21:15:53,878 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:15:53,879 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-06 21:15:53,879 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180893118] [2019-11-06 21:15:53,882 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-06 21:15:53,882 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:15:53,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-06 21:15:53,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-06 21:15:53,883 INFO L87 Difference]: Start difference. First operand 39 states and 45 transitions. Second operand 7 states. [2019-11-06 21:15:54,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:15:54,110 INFO L93 Difference]: Finished difference Result 68 states and 79 transitions. [2019-11-06 21:15:54,110 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-06 21:15:54,110 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 36 [2019-11-06 21:15:54,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:15:54,112 INFO L225 Difference]: With dead ends: 68 [2019-11-06 21:15:54,112 INFO L226 Difference]: Without dead ends: 44 [2019-11-06 21:15:54,115 INFO L630 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 [2019-11-06 21:15:54,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2019-11-06 21:15:54,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 40. [2019-11-06 21:15:54,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-11-06 21:15:54,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 46 transitions. [2019-11-06 21:15:54,134 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 46 transitions. Word has length 36 [2019-11-06 21:15:54,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:15:54,136 INFO L462 AbstractCegarLoop]: Abstraction has 40 states and 46 transitions. [2019-11-06 21:15:54,136 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-06 21:15:54,136 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2019-11-06 21:15:54,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-11-06 21:15:54,140 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:15:54,140 INFO L410 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] [2019-11-06 21:15:54,141 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:15:54,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:15:54,142 INFO L82 PathProgramCache]: Analyzing trace with hash 1378107786, now seen corresponding path program 1 times [2019-11-06 21:15:54,142 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:15:54,142 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339667280] [2019-11-06 21:15:54,142 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:15:54,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:15:54,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:15:54,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:15:54,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:15:54,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:15:54,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:15:54,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:15:54,900 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 21:15:54,900 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339667280] [2019-11-06 21:15:54,901 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [973710902] [2019-11-06 21:15:54,901 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 [2019-11-06 21:15:55,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:15:55,132 INFO L256 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 45 conjunts are in the unsatisfiable core [2019-11-06 21:15:55,145 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 21:15:55,334 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 8 treesize of output 4 [2019-11-06 21:15:55,336 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-06 21:15:55,342 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 21:15:55,343 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-06 21:15:55,343 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2019-11-06 21:15:58,055 WARN L191 SmtUtils]: Spent 1.50 s on a formula simplification that was a NOOP. DAG size: 23 [2019-11-06 21:16:00,877 WARN L191 SmtUtils]: Spent 1.59 s on a formula simplification that was a NOOP. DAG size: 29 [2019-11-06 21:16:00,897 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-06 21:16:00,906 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 21:16:00,907 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. [2019-11-06 21:16:00,909 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:40, output treesize:31 [2019-11-06 21:16:05,115 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-06 21:16:05,115 INFO L218 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-06 21:16:05,115 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 28 [2019-11-06 21:16:05,116 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136219104] [2019-11-06 21:16:05,116 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-11-06 21:16:05,117 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:16:05,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-11-06 21:16:05,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=683, Unknown=4, NotChecked=0, Total=756 [2019-11-06 21:16:05,118 INFO L87 Difference]: Start difference. First operand 40 states and 46 transitions. Second operand 28 states. [2019-11-06 21:16:07,637 WARN L191 SmtUtils]: Spent 1.92 s on a formula simplification that was a NOOP. DAG size: 28 [2019-11-06 21:16:12,768 WARN L191 SmtUtils]: Spent 2.03 s on a formula simplification that was a NOOP. DAG size: 43 [2019-11-06 21:16:13,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:16:13,199 INFO L93 Difference]: Finished difference Result 75 states and 88 transitions. [2019-11-06 21:16:13,203 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-11-06 21:16:13,203 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 46 [2019-11-06 21:16:13,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:16:13,204 INFO L225 Difference]: With dead ends: 75 [2019-11-06 21:16:13,205 INFO L226 Difference]: Without dead ends: 44 [2019-11-06 21:16:13,206 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 14.5s TimeCoverageRelationStatistics Valid=118, Invalid=1210, Unknown=4, NotChecked=0, Total=1332 [2019-11-06 21:16:13,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2019-11-06 21:16:13,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 43. [2019-11-06 21:16:13,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-11-06 21:16:13,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 49 transitions. [2019-11-06 21:16:13,214 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 49 transitions. Word has length 46 [2019-11-06 21:16:13,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:16:13,214 INFO L462 AbstractCegarLoop]: Abstraction has 43 states and 49 transitions. [2019-11-06 21:16:13,215 INFO L463 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-11-06 21:16:13,215 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 49 transitions. [2019-11-06 21:16:13,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-11-06 21:16:13,216 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:16:13,216 INFO L410 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] [2019-11-06 21:16:13,420 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 21:16:13,420 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:16:13,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:16:13,420 INFO L82 PathProgramCache]: Analyzing trace with hash -1141852148, now seen corresponding path program 1 times [2019-11-06 21:16:13,420 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:16:13,421 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664156116] [2019-11-06 21:16:13,421 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:16:13,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:16:13,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:16:13,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:16:14,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:16:14,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:16:14,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:16:15,619 WARN L191 SmtUtils]: Spent 478.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2019-11-06 21:16:16,198 WARN L191 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2019-11-06 21:16:16,682 WARN L191 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2019-11-06 21:16:16,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:16:17,631 WARN L191 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 41 [2019-11-06 21:16:17,681 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 21:16:17,682 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664156116] [2019-11-06 21:16:17,682 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1082279234] [2019-11-06 21:16:17,683 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 [2019-11-06 21:16:17,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:16:17,904 INFO L256 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 132 conjunts are in the unsatisfiable core [2019-11-06 21:16:17,910 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 21:16:17,981 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 [2019-11-06 21:16:17,981 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-06 21:16:17,987 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 21:16:17,988 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-06 21:16:17,988 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-06 21:16:18,073 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2019-11-06 21:16:18,073 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-06 21:16:18,077 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 21:16:18,078 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-06 21:16:18,079 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:3 [2019-11-06 21:16:18,196 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 [2019-11-06 21:16:18,197 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-06 21:16:18,207 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 21:16:18,208 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-06 21:16:18,208 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:27 [2019-11-06 21:16:18,301 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 21:16:18,301 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 [2019-11-06 21:16:18,302 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-06 21:16:18,339 INFO L567 ElimStorePlain]: treesize reduction 14, result has 73.1 percent of original size [2019-11-06 21:16:18,340 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-06 21:16:18,340 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:40, output treesize:38 [2019-11-06 21:16:18,430 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-06 21:16:18,432 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 25 treesize of output 13 [2019-11-06 21:16:18,432 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-06 21:16:18,448 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 21:16:18,449 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-06 21:16:18,449 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:53, output treesize:38 [2019-11-06 21:16:18,551 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 29 treesize of output 13 [2019-11-06 21:16:18,552 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-06 21:16:18,566 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 21:16:18,566 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-06 21:16:18,566 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:54, output treesize:35 [2019-11-06 21:16:18,723 INFO L392 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.base_42|], 2=[|v_#memory_int_51|, |v_#memory_int_43|]} [2019-11-06 21:16:18,729 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2019-11-06 21:16:18,730 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-06 21:16:18,764 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 21:16:18,771 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 [2019-11-06 21:16:18,772 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-06 21:16:18,819 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 21:16:18,824 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-06 21:16:18,826 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 [2019-11-06 21:16:18,826 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-06 21:16:18,847 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 21:16:18,849 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 3 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-06 21:16:18,849 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:96, output treesize:64 [2019-11-06 21:16:19,216 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 29 treesize of output 7 [2019-11-06 21:16:19,217 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-06 21:16:19,247 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 21:16:19,251 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_5|]} [2019-11-06 21:16:19,256 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 74 treesize of output 58 [2019-11-06 21:16:19,257 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-06 21:16:19,281 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 21:16:19,287 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 [2019-11-06 21:16:19,287 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-06 21:16:19,306 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 21:16:19,326 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 21:16:19,327 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 56 treesize of output 46 [2019-11-06 21:16:19,329 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:16:19,331 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:16:19,331 INFO L496 ElimStorePlain]: Start of recursive call 5: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-11-06 21:16:19,366 INFO L567 ElimStorePlain]: treesize reduction 12, result has 70.0 percent of original size [2019-11-06 21:16:19,367 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. [2019-11-06 21:16:19,367 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:135, output treesize:13 [2019-11-06 21:16:19,546 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-06 21:16:19,581 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 21:16:19,585 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-06 21:16:19,608 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 21:16:19,609 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2019-11-06 21:16:19,609 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:112, output treesize:86 [2019-11-06 21:16:27,727 WARN L191 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 48 [2019-11-06 21:16:31,895 WARN L191 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 54 [2019-11-06 21:16:34,044 WARN L191 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 54 [2019-11-06 21:16:34,057 INFO L392 ElimStorePlain]: Different costs {2=[|v_#memory_int_48|, |v_#memory_int_46|, |v_#memory_int_47|], 35=[|v_#memory_$Pointer$.offset_42|], 49=[|v_#memory_$Pointer$.base_44|]} [2019-11-06 21:16:34,075 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-06 21:16:34,727 WARN L191 SmtUtils]: Spent 650.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-11-06 21:16:34,727 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 21:16:34,750 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-06 21:16:35,285 WARN L191 SmtUtils]: Spent 534.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-11-06 21:16:35,286 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 21:16:35,298 INFO L496 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-06 21:16:35,777 WARN L191 SmtUtils]: Spent 477.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2019-11-06 21:16:35,777 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 21:16:35,782 INFO L496 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-06 21:16:36,328 WARN L191 SmtUtils]: Spent 545.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-11-06 21:16:36,328 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 21:16:36,334 INFO L496 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-06 21:16:36,719 WARN L191 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-11-06 21:16:36,720 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 21:16:36,721 INFO L496 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 5 dim-2 vars, End of recursive call: 12 dim-0 vars, and 1 xjuncts. [2019-11-06 21:16:36,722 INFO L221 ElimStorePlain]: Needed 6 recursive calls to eliminate 12 variables, input treesize:3098, output treesize:13275