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 --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/list-simple/sll2n_insert_unequal.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:00:17,700 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:00:17,703 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:00:17,716 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:00:17,716 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:00:17,717 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:00:17,719 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:00:17,721 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:00:17,722 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:00:17,723 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:00:17,724 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:00:17,726 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:00:17,726 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:00:17,727 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:00:17,728 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:00:17,729 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:00:17,730 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:00:17,731 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:00:17,733 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:00:17,734 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:00:17,736 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:00:17,737 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:00:17,738 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:00:17,739 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:00:17,741 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:00:17,747 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:00:17,748 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:00:17,749 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:00:17,749 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:00:17,750 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:00:17,751 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:00:17,751 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:00:17,752 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:00:17,753 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:00:17,757 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:00:17,758 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:00:17,759 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:00:17,759 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:00:17,759 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:00:17,762 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:00:17,763 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:00:17,764 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 [2019-10-15 03:00:17,791 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:00:17,792 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:00:17,793 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:00:17,793 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:00:17,794 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:00:17,794 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:00:17,794 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:00:17,794 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:00:17,794 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:00:17,795 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:00:17,796 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:00:17,796 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:00:17,796 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:00:17,796 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:00:17,797 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:00:17,797 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:00:17,797 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:00:17,797 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:00:17,797 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:00:17,798 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:00:17,798 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:00:17,798 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:00:17,798 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:00:17,799 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:00:17,799 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:00:17,799 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:00:17,799 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:00:17,799 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:00:17,800 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-15 03:00:18,149 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:00:18,163 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:00:18,167 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:00:18,168 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:00:18,169 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:00:18,170 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/sll2n_insert_unequal.i [2019-10-15 03:00:18,240 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/171bd2bf4/14c52010d32d4946b91b9b092dbd0b6e/FLAGfccf237c2 [2019-10-15 03:00:18,806 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:00:18,807 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/sll2n_insert_unequal.i [2019-10-15 03:00:18,820 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/171bd2bf4/14c52010d32d4946b91b9b092dbd0b6e/FLAGfccf237c2 [2019-10-15 03:00:19,132 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/171bd2bf4/14c52010d32d4946b91b9b092dbd0b6e [2019-10-15 03:00:19,142 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:00:19,144 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:00:19,145 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:00:19,145 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:00:19,149 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:00:19,150 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:00:19" (1/1) ... [2019-10-15 03:00:19,153 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@342f7e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:19, skipping insertion in model container [2019-10-15 03:00:19,153 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:00:19" (1/1) ... [2019-10-15 03:00:19,161 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:00:19,213 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:00:19,715 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:00:19,736 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:00:19,818 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:00:19,900 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:00:19,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:19 WrapperNode [2019-10-15 03:00:19,901 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:00:19,902 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:00:19,903 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:00:19,903 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:00:19,919 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:19" (1/1) ... [2019-10-15 03:00:19,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:19" (1/1) ... [2019-10-15 03:00:19,968 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:19" (1/1) ... [2019-10-15 03:00:19,969 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:19" (1/1) ... [2019-10-15 03:00:20,006 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:19" (1/1) ... [2019-10-15 03:00:20,012 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:19" (1/1) ... [2019-10-15 03:00:20,018 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:19" (1/1) ... [2019-10-15 03:00:20,031 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:00:20,034 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:00:20,035 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:00:20,035 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:00:20,036 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:19" (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 [2019-10-15 03:00:20,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:00:20,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:00:20,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-15 03:00:20,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-15 03:00:20,102 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-10-15 03:00:20,102 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2019-10-15 03:00:20,102 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_create [2019-10-15 03:00:20,102 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_destroy [2019-10-15 03:00:20,103 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_insert [2019-10-15 03:00:20,103 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:00:20,103 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:00:20,103 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:00:20,103 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-15 03:00:20,103 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-15 03:00:20,104 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-15 03:00:20,104 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-15 03:00:20,104 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-15 03:00:20,104 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-15 03:00:20,104 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-15 03:00:20,105 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-15 03:00:20,105 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-15 03:00:20,105 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-15 03:00:20,105 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-15 03:00:20,105 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-15 03:00:20,105 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-15 03:00:20,105 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-15 03:00:20,106 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-15 03:00:20,106 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-15 03:00:20,106 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-15 03:00:20,106 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-15 03:00:20,106 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-15 03:00:20,106 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-15 03:00:20,107 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-15 03:00:20,107 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-15 03:00:20,107 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-15 03:00:20,107 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-15 03:00:20,107 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-15 03:00:20,107 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-15 03:00:20,107 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-15 03:00:20,108 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-15 03:00:20,108 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-15 03:00:20,108 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-15 03:00:20,108 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-15 03:00:20,108 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-15 03:00:20,108 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-15 03:00:20,108 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-15 03:00:20,109 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-15 03:00:20,109 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-15 03:00:20,109 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-15 03:00:20,109 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-15 03:00:20,109 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-15 03:00:20,109 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-15 03:00:20,109 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-15 03:00:20,110 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-15 03:00:20,110 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-15 03:00:20,110 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-15 03:00:20,110 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-15 03:00:20,110 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-15 03:00:20,110 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-15 03:00:20,111 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-15 03:00:20,111 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-15 03:00:20,111 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-15 03:00:20,111 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-15 03:00:20,111 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-15 03:00:20,111 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:00:20,112 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-15 03:00:20,112 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-15 03:00:20,112 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:00:20,112 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-15 03:00:20,112 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-15 03:00:20,112 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-15 03:00:20,113 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-15 03:00:20,113 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-15 03:00:20,113 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-15 03:00:20,113 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-15 03:00:20,113 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-15 03:00:20,113 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-15 03:00:20,113 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 03:00:20,114 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-15 03:00:20,114 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-15 03:00:20,114 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-15 03:00:20,114 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-15 03:00:20,114 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-15 03:00:20,114 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-15 03:00:20,115 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-15 03:00:20,115 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-15 03:00:20,115 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-15 03:00:20,115 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-15 03:00:20,115 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-15 03:00:20,115 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-15 03:00:20,116 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-15 03:00:20,116 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-15 03:00:20,116 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-15 03:00:20,116 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-15 03:00:20,116 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-15 03:00:20,116 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-15 03:00:20,116 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-15 03:00:20,117 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-15 03:00:20,117 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-15 03:00:20,117 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-15 03:00:20,117 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-15 03:00:20,117 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-15 03:00:20,117 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-15 03:00:20,118 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-15 03:00:20,118 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-15 03:00:20,118 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-15 03:00:20,118 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-15 03:00:20,118 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-15 03:00:20,118 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-15 03:00:20,118 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-15 03:00:20,119 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-15 03:00:20,119 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-15 03:00:20,119 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-15 03:00:20,119 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-15 03:00:20,119 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-15 03:00:20,119 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-15 03:00:20,120 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-15 03:00:20,120 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-10-15 03:00:20,120 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2019-10-15 03:00:20,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:00:20,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:00:20,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:00:20,120 INFO L130 BoogieDeclarations]: Found specification of procedure sll_create [2019-10-15 03:00:20,121 INFO L130 BoogieDeclarations]: Found specification of procedure sll_destroy [2019-10-15 03:00:20,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:00:20,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:00:20,121 INFO L130 BoogieDeclarations]: Found specification of procedure sll_insert [2019-10-15 03:00:20,121 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:00:20,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:00:20,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-15 03:00:20,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:00:20,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:00:20,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:00:20,515 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-10-15 03:00:20,914 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:00:20,914 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-15 03:00:20,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:00:20 BoogieIcfgContainer [2019-10-15 03:00:20,916 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:00:20,917 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:00:20,917 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:00:20,920 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:00:20,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:00:19" (1/3) ... [2019-10-15 03:00:20,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16954cda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:00:20, skipping insertion in model container [2019-10-15 03:00:20,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:19" (2/3) ... [2019-10-15 03:00:20,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16954cda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:00:20, skipping insertion in model container [2019-10-15 03:00:20,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:00:20" (3/3) ... [2019-10-15 03:00:20,925 INFO L109 eAbstractionObserver]: Analyzing ICFG sll2n_insert_unequal.i [2019-10-15 03:00:20,935 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:00:20,944 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:00:20,953 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:00:20,974 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:00:20,974 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:00:20,974 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:00:20,974 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:00:20,975 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:00:20,975 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:00:20,975 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:00:20,975 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:00:20,991 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2019-10-15 03:00:20,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-15 03:00:20,997 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:00:20,998 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] [2019-10-15 03:00:21,000 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:00:21,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:00:21,005 INFO L82 PathProgramCache]: Analyzing trace with hash -235980954, now seen corresponding path program 1 times [2019-10-15 03:00:21,012 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:00:21,013 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445301105] [2019-10-15 03:00:21,013 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:00:21,013 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:00:21,013 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:00:21,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:00:21,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:00:21,425 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445301105] [2019-10-15 03:00:21,427 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:00:21,428 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-15 03:00:21,428 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857084691] [2019-10-15 03:00:21,433 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 03:00:21,433 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:00:21,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 03:00:21,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2019-10-15 03:00:21,450 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 9 states. [2019-10-15 03:00:21,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:00:21,677 INFO L93 Difference]: Finished difference Result 81 states and 102 transitions. [2019-10-15 03:00:21,678 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 03:00:21,679 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 24 [2019-10-15 03:00:21,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:00:21,689 INFO L225 Difference]: With dead ends: 81 [2019-10-15 03:00:21,690 INFO L226 Difference]: Without dead ends: 36 [2019-10-15 03:00:21,693 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2019-10-15 03:00:21,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-10-15 03:00:21,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 32. [2019-10-15 03:00:21,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-10-15 03:00:21,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2019-10-15 03:00:21,733 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 24 [2019-10-15 03:00:21,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:00:21,734 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2019-10-15 03:00:21,734 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 03:00:21,734 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2019-10-15 03:00:21,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-15 03:00:21,735 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:00:21,736 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 03:00:21,736 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:00:21,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:00:21,736 INFO L82 PathProgramCache]: Analyzing trace with hash -915082025, now seen corresponding path program 1 times [2019-10-15 03:00:21,737 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:00:21,737 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350291194] [2019-10-15 03:00:21,737 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:00:21,737 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:00:21,737 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:00:21,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:00:21,936 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-15 03:00:21,937 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350291194] [2019-10-15 03:00:21,937 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1633397905] [2019-10-15 03:00:21,937 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 [2019-10-15 03:00:22,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:00:22,103 INFO L256 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-15 03:00:22,110 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:00:22,158 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:00:22,158 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:00:22,338 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-15 03:00:22,339 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2071153896] [2019-10-15 03:00:22,368 INFO L162 IcfgInterpreter]: Started Sifa with 27 locations of interest [2019-10-15 03:00:22,368 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:00:22,375 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:00:22,385 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:00:22,385 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 03:00:22,542 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 27 for LOIs [2019-10-15 03:00:22,830 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:24,203 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2019-10-15 03:00:24,213 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2019-10-15 03:00:24,237 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:24,244 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:24,250 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:24,256 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:24,261 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:24,265 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:24,297 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:24,307 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:24,315 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:24,324 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:24,331 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:24,337 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:24,437 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:24,459 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:24,466 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:24,477 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:24,484 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:24,491 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:24,529 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:24,538 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:24,547 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:24,555 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:24,562 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:24,568 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:24,627 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:24,634 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:24,641 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:24,648 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:24,654 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:24,659 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:24,688 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:24,696 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:24,702 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:24,710 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:24,717 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:24,723 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:24,780 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:24,789 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:24,798 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:24,806 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:24,813 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:24,819 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:24,855 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:24,868 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:24,881 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:24,889 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:24,898 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:24,905 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:25,061 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:25,068 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:25,076 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:25,082 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:25,088 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:25,092 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:25,130 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:25,139 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:25,147 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:25,155 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:25,161 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:25,167 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:25,217 INFO L199 IcfgInterpreter]: Interpreting procedure sll_insert with input of size 52 for LOIs [2019-10-15 03:00:25,449 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:25,466 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:25,568 INFO L199 IcfgInterpreter]: Interpreting procedure sll_create with input of size 44 for LOIs [2019-10-15 03:00:28,275 INFO L199 IcfgInterpreter]: Interpreting procedure node_create with input of size 81 for LOIs [2019-10-15 03:00:28,361 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 10 for LOIs [2019-10-15 03:00:28,364 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-15 03:00:28,838 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 96 [2019-10-15 03:00:32,091 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 37 [2019-10-15 03:00:32,411 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 47 [2019-10-15 03:00:32,683 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 56 [2019-10-15 03:00:33,154 WARN L191 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 66 [2019-10-15 03:00:33,668 WARN L191 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 86 [2019-10-15 03:00:33,669 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-15 03:00:33,669 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [10, 6, 6] total 30 [2019-10-15 03:00:33,669 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021322249] [2019-10-15 03:00:33,672 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-10-15 03:00:33,672 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:00:33,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-10-15 03:00:33,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=786, Unknown=1, NotChecked=0, Total=870 [2019-10-15 03:00:33,673 INFO L87 Difference]: Start difference. First operand 32 states and 39 transitions. Second operand 20 states. [2019-10-15 03:00:34,278 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 101 [2019-10-15 03:00:41,066 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 192 [2019-10-15 03:00:42,186 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2019-10-15 03:00:42,417 WARN L191 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2019-10-15 03:00:43,067 WARN L191 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2019-10-15 03:00:43,388 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 85 [2019-10-15 03:00:44,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:00:44,000 INFO L93 Difference]: Finished difference Result 44 states and 57 transitions. [2019-10-15 03:00:44,000 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-15 03:00:44,001 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 31 [2019-10-15 03:00:44,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:00:44,003 INFO L225 Difference]: With dead ends: 44 [2019-10-15 03:00:44,003 INFO L226 Difference]: Without dead ends: 34 [2019-10-15 03:00:44,005 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 70 SyntacticMatches, 5 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 11.6s TimeCoverageRelationStatistics Valid=181, Invalid=1796, Unknown=3, NotChecked=0, Total=1980 [2019-10-15 03:00:44,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-10-15 03:00:44,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2019-10-15 03:00:44,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-10-15 03:00:44,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 40 transitions. [2019-10-15 03:00:44,014 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 40 transitions. Word has length 31 [2019-10-15 03:00:44,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:00:44,015 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 40 transitions. [2019-10-15 03:00:44,015 INFO L463 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-10-15 03:00:44,015 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2019-10-15 03:00:44,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-15 03:00:44,016 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:00:44,016 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 03:00:44,217 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:00:44,218 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:00:44,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:00:44,218 INFO L82 PathProgramCache]: Analyzing trace with hash -565859480, now seen corresponding path program 1 times [2019-10-15 03:00:44,218 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:00:44,219 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125552885] [2019-10-15 03:00:44,219 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:00:44,219 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:00:44,220 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:00:44,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:00:44,302 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-15 03:00:44,302 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125552885] [2019-10-15 03:00:44,302 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1092239941] [2019-10-15 03:00:44,303 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 [2019-10-15 03:00:44,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:00:44,459 INFO L256 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-15 03:00:44,461 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:00:44,467 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-15 03:00:44,468 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:00:44,542 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-15 03:00:44,542 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2118259774] [2019-10-15 03:00:44,544 INFO L162 IcfgInterpreter]: Started Sifa with 27 locations of interest [2019-10-15 03:00:44,545 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:00:44,545 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:00:44,546 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:00:44,546 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 03:00:44,567 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 27 for LOIs [2019-10-15 03:00:44,640 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:45,869 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:45,884 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:45,921 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:45,925 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:45,931 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:46,023 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:46,035 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:46,111 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:46,120 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:46,127 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:46,383 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:46,394 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:46,473 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:46,483 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:46,493 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:46,598 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:46,610 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:46,674 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:46,683 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:46,700 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:46,862 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:46,869 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:46,916 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:46,925 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:46,931 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:47,045 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:47,051 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:47,088 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:47,093 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:47,099 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:47,270 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:47,279 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:47,332 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:47,352 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:47,361 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:47,451 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:47,477 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:47,537 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:47,560 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:47,567 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:47,819 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:47,832 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:47,924 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:47,934 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:47,943 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:48,045 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:48,054 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:48,107 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:48,115 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:48,134 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:48,234 INFO L199 IcfgInterpreter]: Interpreting procedure sll_insert with input of size 61 for LOIs [2019-10-15 03:00:48,768 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:49,713 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:00:49,714 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.UnsupportedOperationException: expected NNF at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:307) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:184) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.UnsupportedOperationException: expected NNF at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder$MyWalker.walk(ArrayOccurrenceAnalysis.java:236) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive$TermWalker.walk(NonRecursive.java:139) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder$MyWalker.walk(ArrayOccurrenceAnalysis.java:195) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder.(ArrayOccurrenceAnalysis.java:181) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis.(ArrayOccurrenceAnalysis.java:74) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:275) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:253) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:466) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.quantifier(PartialQuantifierElimination.java:146) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.newQuantifier(SymbolicTools.java:275) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.projectExistentially(SymbolicTools.java:263) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermDomainOperationProvider.projectExistentially(TermDomainOperationProvider.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateTransformer.strongestPostcondition(PredicateTransformer.java:131) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:116) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:237) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:216) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:299) ... 21 more [2019-10-15 03:00:49,722 INFO L168 Benchmark]: Toolchain (without parser) took 30577.43 ms. Allocated memory was 138.4 MB in the beginning and 513.8 MB in the end (delta: 375.4 MB). Free memory was 102.1 MB in the beginning and 191.4 MB in the end (delta: -89.3 MB). Peak memory consumption was 286.1 MB. Max. memory is 7.1 GB. [2019-10-15 03:00:49,722 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 138.4 MB. Free memory was 121.7 MB in the beginning and 121.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-15 03:00:49,722 INFO L168 Benchmark]: CACSL2BoogieTranslator took 756.86 ms. Allocated memory was 138.4 MB in the beginning and 200.3 MB in the end (delta: 61.9 MB). Free memory was 101.9 MB in the beginning and 162.3 MB in the end (delta: -60.4 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. [2019-10-15 03:00:49,725 INFO L168 Benchmark]: Boogie Preprocessor took 128.49 ms. Allocated memory is still 200.3 MB. Free memory was 162.3 MB in the beginning and 159.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2019-10-15 03:00:49,727 INFO L168 Benchmark]: RCFGBuilder took 881.56 ms. Allocated memory is still 200.3 MB. Free memory was 159.6 MB in the beginning and 98.6 MB in the end (delta: 61.0 MB). Peak memory consumption was 61.0 MB. Max. memory is 7.1 GB. [2019-10-15 03:00:49,727 INFO L168 Benchmark]: TraceAbstraction took 28802.76 ms. Allocated memory was 200.3 MB in the beginning and 513.8 MB in the end (delta: 313.5 MB). Free memory was 97.9 MB in the beginning and 191.4 MB in the end (delta: -93.5 MB). Peak memory consumption was 220.0 MB. Max. memory is 7.1 GB. [2019-10-15 03:00:49,732 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 138.4 MB. Free memory was 121.7 MB in the beginning and 121.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 756.86 ms. Allocated memory was 138.4 MB in the beginning and 200.3 MB in the end (delta: 61.9 MB). Free memory was 101.9 MB in the beginning and 162.3 MB in the end (delta: -60.4 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 128.49 ms. Allocated memory is still 200.3 MB. Free memory was 162.3 MB in the beginning and 159.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 881.56 ms. Allocated memory is still 200.3 MB. Free memory was 159.6 MB in the beginning and 98.6 MB in the end (delta: 61.0 MB). Peak memory consumption was 61.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 28802.76 ms. Allocated memory was 200.3 MB in the beginning and 513.8 MB in the end (delta: 313.5 MB). Free memory was 97.9 MB in the beginning and 191.4 MB in the end (delta: -93.5 MB). Peak memory consumption was 220.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.UnsupportedOperationException: expected NNF de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.UnsupportedOperationException: expected NNF: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:307) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...