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/sll2n_insert_unequal.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:12:59,666 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:12:59,669 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:12:59,690 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:12:59,691 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:12:59,693 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:12:59,695 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:12:59,707 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:12:59,712 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:12:59,714 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:12:59,716 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:12:59,718 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:12:59,719 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:12:59,722 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:12:59,724 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:12:59,726 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:12:59,728 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:12:59,729 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:12:59,731 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:12:59,737 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:12:59,741 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:12:59,745 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:12:59,746 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:12:59,747 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:12:59,752 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 23:12:59,753 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 23:12:59,753 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 23:12:59,755 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 23:12:59,757 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 23:12:59,758 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 23:12:59,758 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:12:59,759 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:12:59,760 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:12:59,761 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:12:59,763 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:12:59,764 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:12:59,764 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:12:59,765 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:12:59,765 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:12:59,766 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:12:59,768 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:12:59,768 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 23:12:59,785 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:12:59,785 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:12:59,786 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:12:59,787 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:12:59,787 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:12:59,787 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:12:59,787 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:12:59,788 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:12:59,788 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:12:59,788 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:12:59,788 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:12:59,788 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:12:59,788 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:12:59,789 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:12:59,789 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:12:59,789 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:12:59,789 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:12:59,789 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:12:59,790 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:12:59,790 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:12:59,790 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:12:59,790 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:12:59,790 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:12:59,791 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:12:59,791 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:12:59,791 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:12:59,791 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:12:59,791 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:12:59,791 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:13:00,090 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:13:00,109 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:13:00,113 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:13:00,114 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:13:00,115 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:13:00,115 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/sll2n_insert_unequal.i [2019-10-14 23:13:00,192 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b249b5ca0/0e557ee7057d4adc92a6abc449803256/FLAGa9ed091f2 [2019-10-14 23:13:00,715 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:13:00,716 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/sll2n_insert_unequal.i [2019-10-14 23:13:00,729 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b249b5ca0/0e557ee7057d4adc92a6abc449803256/FLAGa9ed091f2 [2019-10-14 23:13:01,016 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b249b5ca0/0e557ee7057d4adc92a6abc449803256 [2019-10-14 23:13:01,026 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:13:01,027 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:13:01,028 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:13:01,028 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:13:01,032 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:13:01,033 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:13:01" (1/1) ... [2019-10-14 23:13:01,036 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@234ac15d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:13:01, skipping insertion in model container [2019-10-14 23:13:01,036 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:13:01" (1/1) ... [2019-10-14 23:13:01,043 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:13:01,092 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:13:01,503 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:13:01,518 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:13:01,601 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:13:01,655 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:13:01,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:13:01 WrapperNode [2019-10-14 23:13:01,656 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:13:01,657 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:13:01,657 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:13:01,657 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:13:01,672 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:13:01" (1/1) ... [2019-10-14 23:13:01,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:13:01" (1/1) ... [2019-10-14 23:13:01,689 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:13:01" (1/1) ... [2019-10-14 23:13:01,690 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:13:01" (1/1) ... [2019-10-14 23:13:01,708 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:13:01" (1/1) ... [2019-10-14 23:13:01,715 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:13:01" (1/1) ... [2019-10-14 23:13:01,719 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:13:01" (1/1) ... [2019-10-14 23:13:01,726 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:13:01,727 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:13:01,727 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:13:01,727 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:13:01,728 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:13:01" (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 23:13:01,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:13:01,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:13:01,783 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-14 23:13:01,783 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-14 23:13:01,784 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-10-14 23:13:01,784 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2019-10-14 23:13:01,784 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_create [2019-10-14 23:13:01,784 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_destroy [2019-10-14 23:13:01,784 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_insert [2019-10-14 23:13:01,784 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:13:01,785 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:13:01,785 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:13:01,785 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-14 23:13:01,785 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-14 23:13:01,785 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-14 23:13:01,785 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-14 23:13:01,786 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-14 23:13:01,786 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-14 23:13:01,786 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-14 23:13:01,786 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-14 23:13:01,786 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-14 23:13:01,787 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-14 23:13:01,787 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-14 23:13:01,787 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-14 23:13:01,787 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-14 23:13:01,787 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-14 23:13:01,787 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-14 23:13:01,788 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-14 23:13:01,788 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-14 23:13:01,788 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-14 23:13:01,788 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-14 23:13:01,788 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-14 23:13:01,788 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-14 23:13:01,788 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-14 23:13:01,789 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-14 23:13:01,789 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-14 23:13:01,789 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-14 23:13:01,789 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-14 23:13:01,789 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-14 23:13:01,789 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-14 23:13:01,790 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-14 23:13:01,790 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-14 23:13:01,790 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-14 23:13:01,790 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-14 23:13:01,790 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-14 23:13:01,790 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-14 23:13:01,791 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-14 23:13:01,791 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-14 23:13:01,791 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-14 23:13:01,791 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-14 23:13:01,791 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-14 23:13:01,791 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-14 23:13:01,791 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-14 23:13:01,792 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-14 23:13:01,792 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-14 23:13:01,792 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-14 23:13:01,792 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-14 23:13:01,792 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-14 23:13:01,792 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-14 23:13:01,792 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-14 23:13:01,793 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-14 23:13:01,793 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-14 23:13:01,793 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-14 23:13:01,793 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-14 23:13:01,793 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-14 23:13:01,793 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-14 23:13:01,794 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-14 23:13:01,794 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-14 23:13:01,794 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-14 23:13:01,794 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-14 23:13:01,794 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-14 23:13:01,794 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-14 23:13:01,795 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-14 23:13:01,795 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-14 23:13:01,795 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-14 23:13:01,795 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-14 23:13:01,795 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-14 23:13:01,795 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-14 23:13:01,795 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-14 23:13:01,796 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-14 23:13:01,796 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-14 23:13:01,796 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-14 23:13:01,796 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-14 23:13:01,796 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-14 23:13:01,796 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-14 23:13:01,797 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-14 23:13:01,797 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-14 23:13:01,797 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-14 23:13:01,797 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-14 23:13:01,797 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-14 23:13:01,797 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-14 23:13:01,797 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-14 23:13:01,798 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-14 23:13:01,798 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-14 23:13:01,798 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-14 23:13:01,798 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-14 23:13:01,798 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-14 23:13:01,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-14 23:13:01,799 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-14 23:13:01,799 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-14 23:13:01,799 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-14 23:13:01,799 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-14 23:13:01,799 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-14 23:13:01,799 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-14 23:13:01,799 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-14 23:13:01,800 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-14 23:13:01,800 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-14 23:13:01,800 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-14 23:13:01,800 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-14 23:13:01,800 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-14 23:13:01,800 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-14 23:13:01,800 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-14 23:13:01,800 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-14 23:13:01,801 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-14 23:13:01,801 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-14 23:13:01,801 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-14 23:13:01,801 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-14 23:13:01,801 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-10-14 23:13:01,801 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2019-10-14 23:13:01,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-14 23:13:01,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-14 23:13:01,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 23:13:01,802 INFO L130 BoogieDeclarations]: Found specification of procedure sll_create [2019-10-14 23:13:01,802 INFO L130 BoogieDeclarations]: Found specification of procedure sll_destroy [2019-10-14 23:13:01,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-14 23:13:01,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 23:13:01,803 INFO L130 BoogieDeclarations]: Found specification of procedure sll_insert [2019-10-14 23:13:01,803 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:13:01,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 23:13:01,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-14 23:13:01,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 23:13:01,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:13:01,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:13:02,186 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-10-14 23:13:02,438 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:13:02,438 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-14 23:13:02,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:13:02 BoogieIcfgContainer [2019-10-14 23:13:02,440 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:13:02,441 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:13:02,441 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:13:02,444 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:13:02,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:13:01" (1/3) ... [2019-10-14 23:13:02,445 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13ca71ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:13:02, skipping insertion in model container [2019-10-14 23:13:02,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:13:01" (2/3) ... [2019-10-14 23:13:02,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13ca71ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:13:02, skipping insertion in model container [2019-10-14 23:13:02,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:13:02" (3/3) ... [2019-10-14 23:13:02,448 INFO L109 eAbstractionObserver]: Analyzing ICFG sll2n_insert_unequal.i [2019-10-14 23:13:02,458 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:13:02,466 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:13:02,477 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:13:02,502 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:13:02,502 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:13:02,502 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:13:02,503 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:13:02,503 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:13:02,503 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:13:02,503 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:13:02,504 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:13:02,522 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states. [2019-10-14 23:13:02,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-14 23:13:02,529 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:13:02,531 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:13:02,533 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:13:02,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:13:02,539 INFO L82 PathProgramCache]: Analyzing trace with hash -1925718240, now seen corresponding path program 1 times [2019-10-14 23:13:02,548 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:13:02,548 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947481972] [2019-10-14 23:13:02,548 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:13:02,549 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:13:02,549 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:13:02,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:13:02,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:13:02,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:13:02,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:13:02,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:13:02,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:13:02,917 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947481972] [2019-10-14 23:13:02,918 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:13:02,918 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-14 23:13:02,935 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582249890] [2019-10-14 23:13:02,940 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 23:13:02,940 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:13:02,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 23:13:02,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-14 23:13:02,960 INFO L87 Difference]: Start difference. First operand 53 states. Second operand 4 states. [2019-10-14 23:13:03,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:13:03,192 INFO L93 Difference]: Finished difference Result 102 states and 138 transitions. [2019-10-14 23:13:03,192 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 23:13:03,193 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-10-14 23:13:03,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:13:03,205 INFO L225 Difference]: With dead ends: 102 [2019-10-14 23:13:03,205 INFO L226 Difference]: Without dead ends: 45 [2019-10-14 23:13:03,209 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-14 23:13:03,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-10-14 23:13:03,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 40. [2019-10-14 23:13:03,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-10-14 23:13:03,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2019-10-14 23:13:03,256 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 31 [2019-10-14 23:13:03,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:13:03,256 INFO L462 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2019-10-14 23:13:03,256 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-14 23:13:03,257 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2019-10-14 23:13:03,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-14 23:13:03,259 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:13:03,259 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:13:03,259 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:13:03,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:13:03,260 INFO L82 PathProgramCache]: Analyzing trace with hash 1001067800, now seen corresponding path program 1 times [2019-10-14 23:13:03,260 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:13:03,260 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833942469] [2019-10-14 23:13:03,260 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:13:03,260 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:13:03,261 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:13:03,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:13:03,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:13:03,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:13:03,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:13:03,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:13:03,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:13:03,423 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833942469] [2019-10-14 23:13:03,423 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:13:03,423 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-14 23:13:03,424 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701717111] [2019-10-14 23:13:03,425 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-14 23:13:03,426 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:13:03,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-14 23:13:03,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-14 23:13:03,426 INFO L87 Difference]: Start difference. First operand 40 states and 48 transitions. Second operand 5 states. [2019-10-14 23:13:03,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:13:03,589 INFO L93 Difference]: Finished difference Result 63 states and 79 transitions. [2019-10-14 23:13:03,590 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-14 23:13:03,590 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-10-14 23:13:03,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:13:03,592 INFO L225 Difference]: With dead ends: 63 [2019-10-14 23:13:03,592 INFO L226 Difference]: Without dead ends: 50 [2019-10-14 23:13:03,593 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-14 23:13:03,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2019-10-14 23:13:03,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 42. [2019-10-14 23:13:03,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-10-14 23:13:03,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 51 transitions. [2019-10-14 23:13:03,610 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 51 transitions. Word has length 31 [2019-10-14 23:13:03,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:13:03,611 INFO L462 AbstractCegarLoop]: Abstraction has 42 states and 51 transitions. [2019-10-14 23:13:03,611 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-14 23:13:03,611 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 51 transitions. [2019-10-14 23:13:03,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-14 23:13:03,612 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:13:03,613 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:13:03,613 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:13:03,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:13:03,613 INFO L82 PathProgramCache]: Analyzing trace with hash 191721174, now seen corresponding path program 1 times [2019-10-14 23:13:03,614 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:13:03,614 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219341766] [2019-10-14 23:13:03,614 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:13:03,614 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:13:03,614 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:13:03,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:13:03,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:13:03,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:13:03,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:13:03,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:13:03,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:13:03,896 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219341766] [2019-10-14 23:13:03,897 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:13:03,897 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-14 23:13:03,897 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893112835] [2019-10-14 23:13:03,899 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-14 23:13:03,900 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:13:03,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-14 23:13:03,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2019-10-14 23:13:03,905 INFO L87 Difference]: Start difference. First operand 42 states and 51 transitions. Second operand 11 states. [2019-10-14 23:13:04,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:13:04,264 INFO L93 Difference]: Finished difference Result 79 states and 97 transitions. [2019-10-14 23:13:04,270 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-14 23:13:04,270 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 31 [2019-10-14 23:13:04,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:13:04,272 INFO L225 Difference]: With dead ends: 79 [2019-10-14 23:13:04,272 INFO L226 Difference]: Without dead ends: 49 [2019-10-14 23:13:04,273 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2019-10-14 23:13:04,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-10-14 23:13:04,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 43. [2019-10-14 23:13:04,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-10-14 23:13:04,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 52 transitions. [2019-10-14 23:13:04,282 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 52 transitions. Word has length 31 [2019-10-14 23:13:04,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:13:04,282 INFO L462 AbstractCegarLoop]: Abstraction has 43 states and 52 transitions. [2019-10-14 23:13:04,282 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-14 23:13:04,282 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 52 transitions. [2019-10-14 23:13:04,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-10-14 23:13:04,283 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:13:04,284 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:13:04,284 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:13:04,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:13:04,284 INFO L82 PathProgramCache]: Analyzing trace with hash -833744621, now seen corresponding path program 1 times [2019-10-14 23:13:04,285 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:13:04,285 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067674477] [2019-10-14 23:13:04,285 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:13:04,285 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:13:04,285 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:13:04,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:13:04,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:13:04,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:13:04,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:13:04,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:13:04,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:13:04,492 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-14 23:13:04,492 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067674477] [2019-10-14 23:13:04,492 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729536332] [2019-10-14 23:13:04,493 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 23:13:04,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:13:04,643 INFO L256 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-14 23:13:04,652 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:13:04,724 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:13:04,724 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-14 23:13:04,725 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 6] total 13 [2019-10-14 23:13:04,725 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760840260] [2019-10-14 23:13:04,725 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-14 23:13:04,726 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:13:04,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-14 23:13:04,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2019-10-14 23:13:04,726 INFO L87 Difference]: Start difference. First operand 43 states and 52 transitions. Second operand 13 states. [2019-10-14 23:13:05,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:13:05,023 INFO L93 Difference]: Finished difference Result 83 states and 102 transitions. [2019-10-14 23:13:05,024 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-14 23:13:05,024 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 40 [2019-10-14 23:13:05,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:13:05,026 INFO L225 Difference]: With dead ends: 83 [2019-10-14 23:13:05,026 INFO L226 Difference]: Without dead ends: 53 [2019-10-14 23:13:05,027 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2019-10-14 23:13:05,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2019-10-14 23:13:05,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 47. [2019-10-14 23:13:05,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2019-10-14 23:13:05,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 57 transitions. [2019-10-14 23:13:05,043 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 57 transitions. Word has length 40 [2019-10-14 23:13:05,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:13:05,043 INFO L462 AbstractCegarLoop]: Abstraction has 47 states and 57 transitions. [2019-10-14 23:13:05,043 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-14 23:13:05,045 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 57 transitions. [2019-10-14 23:13:05,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-10-14 23:13:05,048 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:13:05,048 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:13:05,262 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:13:05,262 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:13:05,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:13:05,263 INFO L82 PathProgramCache]: Analyzing trace with hash -159145098, now seen corresponding path program 2 times [2019-10-14 23:13:05,263 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:13:05,264 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571017316] [2019-10-14 23:13:05,264 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:13:05,264 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:13:05,264 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:13:05,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:13:05,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:13:05,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:13:05,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:13:05,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:13:05,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:13:05,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:13:05,482 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-14 23:13:05,483 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571017316] [2019-10-14 23:13:05,483 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:13:05,484 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-14 23:13:05,484 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111544074] [2019-10-14 23:13:05,484 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-14 23:13:05,484 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:13:05,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-14 23:13:05,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-14 23:13:05,485 INFO L87 Difference]: Start difference. First operand 47 states and 57 transitions. Second operand 8 states. [2019-10-14 23:13:05,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:13:05,697 INFO L93 Difference]: Finished difference Result 60 states and 74 transitions. [2019-10-14 23:13:05,697 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-14 23:13:05,697 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 49 [2019-10-14 23:13:05,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:13:05,698 INFO L225 Difference]: With dead ends: 60 [2019-10-14 23:13:05,698 INFO L226 Difference]: Without dead ends: 46 [2019-10-14 23:13:05,699 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2019-10-14 23:13:05,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-10-14 23:13:05,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2019-10-14 23:13:05,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2019-10-14 23:13:05,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 55 transitions. [2019-10-14 23:13:05,716 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 55 transitions. Word has length 49 [2019-10-14 23:13:05,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:13:05,716 INFO L462 AbstractCegarLoop]: Abstraction has 46 states and 55 transitions. [2019-10-14 23:13:05,717 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-14 23:13:05,717 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 55 transitions. [2019-10-14 23:13:05,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2019-10-14 23:13:05,722 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:13:05,723 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:13:05,723 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:13:05,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:13:05,723 INFO L82 PathProgramCache]: Analyzing trace with hash 358537395, now seen corresponding path program 1 times [2019-10-14 23:13:05,724 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:13:05,724 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033409124] [2019-10-14 23:13:05,724 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:13:05,724 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:13:05,726 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:13:05,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:13:05,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:13:06,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:13:06,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:13:06,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:13:06,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:13:06,787 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-10-14 23:13:07,042 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2019-10-14 23:13:07,366 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2019-10-14 23:13:07,622 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 65 [2019-10-14 23:13:07,931 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2019-10-14 23:13:08,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:13:08,473 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 38 [2019-10-14 23:13:08,501 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-14 23:13:08,501 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033409124] [2019-10-14 23:13:08,502 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1600037623] [2019-10-14 23:13:08,502 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:13:08,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:13:08,682 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 121 conjunts are in the unsatisfiable core [2019-10-14 23:13:08,688 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:13:08,801 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 23:13:08,802 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-14 23:13:08,813 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:13:08,814 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-14 23:13:08,814 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:15 [2019-10-14 23:13:08,849 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 11 treesize of output 7 [2019-10-14 23:13:08,850 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-14 23:13:08,856 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:13:08,857 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-14 23:13:08,857 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:25, output treesize:21 [2019-10-14 23:13:08,899 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 23:13:08,900 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-14 23:13:08,910 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:13:08,911 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-14 23:13:08,911 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:21 [2019-10-14 23:13:09,097 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 9 treesize of output 3 [2019-10-14 23:13:09,097 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-14 23:13:09,120 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:13:09,126 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 23:13:09,127 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-14 23:13:09,138 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:13:09,142 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 21 treesize of output 13 [2019-10-14 23:13:09,144 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 23:13:09,157 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:13:09,163 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 23:13:09,163 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-10-14 23:13:09,173 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:13:09,174 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-14 23:13:09,174 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:59, output treesize:13 [2019-10-14 23:13:09,388 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 23:13:09,406 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:13:09,408 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-10-14 23:13:09,408 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:82, output treesize:68 [2019-10-14 23:13:10,356 WARN L191 SmtUtils]: Spent 834.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2019-10-14 23:13:11,567 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 46 [2019-10-14 23:13:12,848 WARN L191 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 50 [2019-10-14 23:13:14,107 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 50 [2019-10-14 23:13:14,131 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 23:13:14,181 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:13:14,189 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 23:13:14,250 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:13:14,251 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. [2019-10-14 23:13:14,252 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:167, output treesize:322 [2019-10-14 23:13:18,431 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 23:13:18,499 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:13:18,500 INFO L496 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 1 dim-2 vars, End of recursive call: 8 dim-0 vars, and 1 xjuncts. [2019-10-14 23:13:18,501 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 8 variables, input treesize:470, output treesize:508 [2019-10-14 23:13:37,503 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2019-10-14 23:13:37,535 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:13:37,536 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2019-10-14 23:13:37,537 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-14 23:13:37,695 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2019-10-14 23:13:37,696 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:13:37,703 INFO L392 ElimStorePlain]: Different costs {3=[|v_#memory_int_BEFORE_CALL_4|], 16=[|v_#memory_$Pointer$.base_BEFORE_CALL_4|, |v_#memory_$Pointer$.offset_BEFORE_CALL_4|]} [2019-10-14 23:13:37,718 INFO L172 IndexEqualityManager]: detected equality via solver [2019-10-14 23:13:37,721 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-14 23:13:37,723 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 181 treesize of output 61 [2019-10-14 23:13:37,724 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-14 23:13:37,822 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:13:37,825 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-14 23:13:37,832 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-14 23:13:37,966 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 48 [2019-10-14 23:13:37,966 INFO L341 Elim1Store]: treesize reduction 33, result has 85.7 percent of original size [2019-10-14 23:13:37,967 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 2 new quantified variables, introduced 3 case distinctions, treesize of input 299 treesize of output 352 [2019-10-14 23:13:37,969 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-14 23:13:37,970 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:13:37,973 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:13:37,976 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-10-14 23:13:38,246 WARN L191 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 63 [2019-10-14 23:13:38,247 INFO L567 ElimStorePlain]: treesize reduction 475, result has 34.8 percent of original size [2019-10-14 23:13:38,250 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-14 23:13:38,261 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-14 23:13:38,262 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-14 23:13:38,264 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 0 case distinctions, treesize of input 183 treesize of output 105 [2019-10-14 23:13:38,265 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-10-14 23:13:38,310 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:13:38,312 INFO L496 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-14 23:13:38,313 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 12 variables, input treesize:559, output treesize:99 [2019-10-14 23:13:38,458 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-14 23:13:38,459 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:13:38,460 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 86 treesize of output 41 [2019-10-14 23:13:38,461 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-14 23:13:38,476 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:13:38,481 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-14 23:13:38,482 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 18 [2019-10-14 23:13:38,482 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-14 23:13:38,493 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:13:38,493 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 23:13:38,494 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:110, output treesize:17 [2019-10-14 23:13:38,580 INFO L172 IndexEqualityManager]: detected equality via solver [2019-10-14 23:13:38,582 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:13:38,583 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 10 [2019-10-14 23:13:38,583 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-14 23:13:38,594 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:13:38,595 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-14 23:13:38,595 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:24, output treesize:7 [2019-10-14 23:13:38,611 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 10 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:13:38,611 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-14 23:13:38,611 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23] total 38 [2019-10-14 23:13:38,611 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649799800] [2019-10-14 23:13:38,612 INFO L442 AbstractCegarLoop]: Interpolant automaton has 38 states [2019-10-14 23:13:38,612 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:13:38,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2019-10-14 23:13:38,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1279, Unknown=11, NotChecked=0, Total=1406 [2019-10-14 23:13:38,614 INFO L87 Difference]: Start difference. First operand 46 states and 55 transitions. Second operand 38 states.