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/heap-manipulation/dll_of_dll-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 03:54:37,942 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 03:54:37,944 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 03:54:37,962 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 03:54:37,962 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 03:54:37,964 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 03:54:37,966 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 03:54:37,975 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 03:54:37,978 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 03:54:37,979 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 03:54:37,981 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 03:54:37,982 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 03:54:37,983 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 03:54:37,986 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 03:54:37,988 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 03:54:37,991 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 03:54:37,992 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 03:54:37,994 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 03:54:37,996 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 03:54:38,000 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 03:54:38,004 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 03:54:38,007 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 03:54:38,010 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 03:54:38,010 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 03:54:38,013 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 03:54:38,013 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 03:54:38,013 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 03:54:38,015 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 03:54:38,016 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 03:54:38,018 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 03:54:38,018 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 03:54:38,019 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 03:54:38,019 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 03:54:38,020 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 03:54:38,021 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 03:54:38,021 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 03:54:38,022 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 03:54:38,022 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 03:54:38,022 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 03:54:38,023 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 03:54:38,024 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 03:54:38,025 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 [2019-10-07 03:54:38,057 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 03:54:38,057 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 03:54:38,058 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 03:54:38,061 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 03:54:38,061 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 03:54:38,062 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 03:54:38,062 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 03:54:38,062 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 03:54:38,062 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 03:54:38,062 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 03:54:38,063 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 03:54:38,063 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 03:54:38,063 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 03:54:38,064 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 03:54:38,064 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 03:54:38,064 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 03:54:38,064 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 03:54:38,064 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 03:54:38,065 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 03:54:38,065 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 03:54:38,065 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 03:54:38,067 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 03:54:38,068 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 03:54:38,068 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 03:54:38,068 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 03:54:38,068 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 03:54:38,069 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 03:54:38,069 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 03:54:38,069 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 [2019-10-07 03:54:38,370 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 03:54:38,392 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 03:54:38,396 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 03:54:38,397 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 03:54:38,397 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 03:54:38,398 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/dll_of_dll-2.i [2019-10-07 03:54:38,474 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97b95027f/f1aa34f40600461d9f528c8e86b9b294/FLAG1f59303fb [2019-10-07 03:54:38,995 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 03:54:38,996 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-manipulation/dll_of_dll-2.i [2019-10-07 03:54:39,023 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97b95027f/f1aa34f40600461d9f528c8e86b9b294/FLAG1f59303fb [2019-10-07 03:54:39,302 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97b95027f/f1aa34f40600461d9f528c8e86b9b294 [2019-10-07 03:54:39,310 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 03:54:39,312 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 03:54:39,313 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 03:54:39,313 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 03:54:39,316 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 03:54:39,317 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:54:39" (1/1) ... [2019-10-07 03:54:39,320 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e7f8ae9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:54:39, skipping insertion in model container [2019-10-07 03:54:39,321 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:54:39" (1/1) ... [2019-10-07 03:54:39,328 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 03:54:39,370 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 03:54:39,824 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 03:54:39,834 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 03:54:39,926 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 03:54:39,989 INFO L192 MainTranslator]: Completed translation [2019-10-07 03:54:39,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:54:39 WrapperNode [2019-10-07 03:54:39,990 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 03:54:39,991 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 03:54:39,991 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 03:54:39,991 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 03:54:40,003 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:54:39" (1/1) ... [2019-10-07 03:54:40,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:54:39" (1/1) ... [2019-10-07 03:54:40,023 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:54:39" (1/1) ... [2019-10-07 03:54:40,023 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:54:39" (1/1) ... [2019-10-07 03:54:40,052 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:54:39" (1/1) ... [2019-10-07 03:54:40,065 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:54:39" (1/1) ... [2019-10-07 03:54:40,071 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:54:39" (1/1) ... [2019-10-07 03:54:40,079 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 03:54:40,080 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 03:54:40,080 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 03:54:40,080 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 03:54:40,081 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:54:39" (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 [2019-10-07 03:54:40,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 03:54:40,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 03:54:40,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-10-07 03:54:40,143 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-07 03:54:40,143 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-07 03:54:40,144 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2019-10-07 03:54:40,144 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_slave [2019-10-07 03:54:40,144 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_master [2019-10-07 03:54:40,144 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_slave [2019-10-07 03:54:40,144 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_generic [2019-10-07 03:54:40,145 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_slave [2019-10-07 03:54:40,145 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_slave [2019-10-07 03:54:40,145 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_nested_lists [2019-10-07 03:54:40,145 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_reinit_nested_lists [2019-10-07 03:54:40,145 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_master [2019-10-07 03:54:40,145 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_master [2019-10-07 03:54:40,146 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_master [2019-10-07 03:54:40,146 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_base [2019-10-07 03:54:40,146 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_full [2019-10-07 03:54:40,146 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_dangling [2019-10-07 03:54:40,146 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_init [2019-10-07 03:54:40,147 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 03:54:40,147 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 03:54:40,147 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-07 03:54:40,147 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-07 03:54:40,147 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-07 03:54:40,148 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-07 03:54:40,148 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-07 03:54:40,148 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-07 03:54:40,148 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-07 03:54:40,148 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-07 03:54:40,148 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-07 03:54:40,148 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-07 03:54:40,148 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-07 03:54:40,149 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-07 03:54:40,149 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-07 03:54:40,149 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-07 03:54:40,149 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-07 03:54:40,149 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-07 03:54:40,149 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-07 03:54:40,149 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-07 03:54:40,149 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-07 03:54:40,149 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-07 03:54:40,149 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-07 03:54:40,150 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-07 03:54:40,150 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-07 03:54:40,150 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-07 03:54:40,150 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-07 03:54:40,150 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-07 03:54:40,150 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-07 03:54:40,150 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-07 03:54:40,150 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-07 03:54:40,150 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-07 03:54:40,150 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-07 03:54:40,151 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-07 03:54:40,151 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-07 03:54:40,151 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-07 03:54:40,151 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-07 03:54:40,151 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-07 03:54:40,151 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-07 03:54:40,151 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-07 03:54:40,151 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-07 03:54:40,152 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-07 03:54:40,152 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-07 03:54:40,152 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-07 03:54:40,152 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-07 03:54:40,152 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-07 03:54:40,152 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-07 03:54:40,152 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-07 03:54:40,152 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-07 03:54:40,153 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-07 03:54:40,153 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-07 03:54:40,153 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-07 03:54:40,153 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-07 03:54:40,153 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-07 03:54:40,153 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 03:54:40,154 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-07 03:54:40,154 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-07 03:54:40,154 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 03:54:40,154 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-07 03:54:40,154 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-07 03:54:40,154 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-07 03:54:40,155 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-07 03:54:40,155 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-07 03:54:40,155 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-07 03:54:40,155 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-07 03:54:40,155 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-07 03:54:40,155 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-07 03:54:40,155 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-07 03:54:40,156 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-07 03:54:40,156 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-07 03:54:40,156 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-07 03:54:40,156 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-07 03:54:40,156 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-07 03:54:40,156 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-07 03:54:40,157 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-07 03:54:40,157 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-07 03:54:40,157 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-07 03:54:40,157 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-07 03:54:40,157 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-07 03:54:40,157 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-07 03:54:40,157 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-07 03:54:40,158 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-07 03:54:40,158 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-07 03:54:40,158 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-07 03:54:40,158 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-07 03:54:40,158 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-07 03:54:40,158 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-07 03:54:40,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-07 03:54:40,159 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-07 03:54:40,159 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-07 03:54:40,159 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-07 03:54:40,159 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-07 03:54:40,159 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-07 03:54:40,159 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-07 03:54:40,159 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-07 03:54:40,160 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-07 03:54:40,160 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-07 03:54:40,160 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-07 03:54:40,160 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-07 03:54:40,160 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-07 03:54:40,160 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-07 03:54:40,161 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-07 03:54:40,161 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-07 03:54:40,161 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-07 03:54:40,161 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-07 03:54:40,161 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-07 03:54:40,161 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-07 03:54:40,161 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 03:54:40,162 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2019-10-07 03:54:40,162 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_slave [2019-10-07 03:54:40,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 03:54:40,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 03:54:40,162 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_master [2019-10-07 03:54:40,162 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_slave [2019-10-07 03:54:40,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 03:54:40,163 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_generic [2019-10-07 03:54:40,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 03:54:40,163 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-10-07 03:54:40,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-07 03:54:40,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 03:54:40,163 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_slave [2019-10-07 03:54:40,164 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_slave [2019-10-07 03:54:40,164 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_nested_lists [2019-10-07 03:54:40,164 INFO L130 BoogieDeclarations]: Found specification of procedure dll_reinit_nested_lists [2019-10-07 03:54:40,164 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_master [2019-10-07 03:54:40,164 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_master [2019-10-07 03:54:40,164 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_master [2019-10-07 03:54:40,165 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_base [2019-10-07 03:54:40,165 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_full [2019-10-07 03:54:40,165 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_dangling [2019-10-07 03:54:40,165 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_init [2019-10-07 03:54:40,165 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 03:54:40,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 03:54:40,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 03:54:41,266 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 03:54:41,266 INFO L284 CfgBuilder]: Removed 38 assume(true) statements. [2019-10-07 03:54:41,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:54:41 BoogieIcfgContainer [2019-10-07 03:54:41,268 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 03:54:41,270 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 03:54:41,270 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 03:54:41,273 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 03:54:41,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:54:39" (1/3) ... [2019-10-07 03:54:41,275 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@797dea78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:54:41, skipping insertion in model container [2019-10-07 03:54:41,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:54:39" (2/3) ... [2019-10-07 03:54:41,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@797dea78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:54:41, skipping insertion in model container [2019-10-07 03:54:41,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:54:41" (3/3) ... [2019-10-07 03:54:41,278 INFO L109 eAbstractionObserver]: Analyzing ICFG dll_of_dll-2.i [2019-10-07 03:54:41,289 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 03:54:41,299 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 03:54:41,312 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 03:54:41,337 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 03:54:41,338 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 03:54:41,338 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 03:54:41,338 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 03:54:41,338 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 03:54:41,339 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 03:54:41,339 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 03:54:41,339 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 03:54:41,363 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states. [2019-10-07 03:54:41,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2019-10-07 03:54:41,372 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 03:54:41,374 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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] [2019-10-07 03:54:41,376 INFO L410 AbstractCegarLoop]: === Iteration 1 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 03:54:41,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 03:54:41,384 INFO L82 PathProgramCache]: Analyzing trace with hash -1789971662, now seen corresponding path program 1 times [2019-10-07 03:54:41,395 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 03:54:41,395 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:54:41,396 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:54:41,396 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:54:41,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 03:54:41,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 03:54:41,705 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-07 03:54:41,705 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:54:41,706 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 03:54:41,707 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 03:54:41,711 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 03:54:41,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 03:54:41,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 03:54:41,728 INFO L87 Difference]: Start difference. First operand 143 states. Second operand 2 states. [2019-10-07 03:54:41,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 03:54:41,794 INFO L93 Difference]: Finished difference Result 279 states and 434 transitions. [2019-10-07 03:54:41,794 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 03:54:41,796 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 44 [2019-10-07 03:54:41,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 03:54:41,815 INFO L225 Difference]: With dead ends: 279 [2019-10-07 03:54:41,815 INFO L226 Difference]: Without dead ends: 133 [2019-10-07 03:54:41,828 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 03:54:41,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2019-10-07 03:54:41,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2019-10-07 03:54:41,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2019-10-07 03:54:41,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 160 transitions. [2019-10-07 03:54:41,900 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 160 transitions. Word has length 44 [2019-10-07 03:54:41,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 03:54:41,902 INFO L462 AbstractCegarLoop]: Abstraction has 133 states and 160 transitions. [2019-10-07 03:54:41,902 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 03:54:41,902 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 160 transitions. [2019-10-07 03:54:41,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-10-07 03:54:41,905 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 03:54:41,905 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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] [2019-10-07 03:54:41,906 INFO L410 AbstractCegarLoop]: === Iteration 2 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 03:54:41,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 03:54:41,906 INFO L82 PathProgramCache]: Analyzing trace with hash 821243101, now seen corresponding path program 1 times [2019-10-07 03:54:41,907 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 03:54:41,907 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:54:41,907 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:54:41,907 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:54:41,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 03:54:41,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 03:54:42,355 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-07 03:54:42,356 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:54:42,356 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 03:54:42,356 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-10-07 03:54:42,359 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-10-07 03:54:42,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-10-07 03:54:42,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2019-10-07 03:54:42,361 INFO L87 Difference]: Start difference. First operand 133 states and 160 transitions. Second operand 18 states. [2019-10-07 03:54:43,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 03:54:43,145 INFO L93 Difference]: Finished difference Result 302 states and 380 transitions. [2019-10-07 03:54:43,145 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-10-07 03:54:43,145 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 45 [2019-10-07 03:54:43,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 03:54:43,151 INFO L225 Difference]: With dead ends: 302 [2019-10-07 03:54:43,151 INFO L226 Difference]: Without dead ends: 239 [2019-10-07 03:54:43,153 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=412, Unknown=0, NotChecked=0, Total=462 [2019-10-07 03:54:43,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2019-10-07 03:54:43,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 190. [2019-10-07 03:54:43,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2019-10-07 03:54:43,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 235 transitions. [2019-10-07 03:54:43,185 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 235 transitions. Word has length 45 [2019-10-07 03:54:43,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 03:54:43,186 INFO L462 AbstractCegarLoop]: Abstraction has 190 states and 235 transitions. [2019-10-07 03:54:43,186 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-10-07 03:54:43,186 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 235 transitions. [2019-10-07 03:54:43,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-10-07 03:54:43,188 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 03:54:43,188 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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] [2019-10-07 03:54:43,188 INFO L410 AbstractCegarLoop]: === Iteration 3 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 03:54:43,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 03:54:43,189 INFO L82 PathProgramCache]: Analyzing trace with hash 1240464570, now seen corresponding path program 1 times [2019-10-07 03:54:43,189 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 03:54:43,189 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:54:43,189 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:54:43,190 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 03:54:43,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 03:54:43,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 03:54:43,417 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-07 03:54:43,417 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 03:54:43,417 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 03:54:43,418 INFO L95 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 [2019-10-07 03:54:43,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 03:54:43,562 INFO L256 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 13 conjunts are in the unsatisfiable core [2019-10-07 03:54:43,571 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 03:54:43,626 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-10-07 03:54:43,641 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-07 03:54:43,641 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 03:54:43,852 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-10-07 03:54:43,913 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-10-07 03:54:43,926 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-10-07 03:54:43,941 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-07 03:54:43,942 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 03:54:43,967 INFO L162 IcfgInterpreter]: Started Sifa with 38 locations of interest [2019-10-07 03:54:43,968 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 03:54:43,974 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 03:54:43,981 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 03:54:43,982 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 03:54:44,104 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 24 for LOIs [2019-10-07 03:54:44,222 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 03:54:44,490 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 03:54:44,491 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) 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.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) 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.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) 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.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) 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.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) 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:99) 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:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 03:54:44,498 INFO L168 Benchmark]: Toolchain (without parser) took 5185.56 ms. Allocated memory was 146.3 MB in the beginning and 245.4 MB in the end (delta: 99.1 MB). Free memory was 101.3 MB in the beginning and 142.9 MB in the end (delta: -41.6 MB). Peak memory consumption was 57.5 MB. Max. memory is 7.1 GB. [2019-10-07 03:54:44,499 INFO L168 Benchmark]: CDTParser took 1.28 ms. Allocated memory is still 146.3 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-07 03:54:44,499 INFO L168 Benchmark]: CACSL2BoogieTranslator took 677.54 ms. Allocated memory was 146.3 MB in the beginning and 204.5 MB in the end (delta: 58.2 MB). Free memory was 101.0 MB in the beginning and 166.7 MB in the end (delta: -65.6 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. [2019-10-07 03:54:44,500 INFO L168 Benchmark]: Boogie Preprocessor took 88.71 ms. Allocated memory is still 204.5 MB. Free memory was 166.1 MB in the beginning and 162.2 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. [2019-10-07 03:54:44,501 INFO L168 Benchmark]: RCFGBuilder took 1188.70 ms. Allocated memory was 204.5 MB in the beginning and 234.9 MB in the end (delta: 30.4 MB). Free memory was 162.2 MB in the beginning and 182.2 MB in the end (delta: -20.0 MB). Peak memory consumption was 75.7 MB. Max. memory is 7.1 GB. [2019-10-07 03:54:44,502 INFO L168 Benchmark]: TraceAbstraction took 3226.09 ms. Allocated memory was 234.9 MB in the beginning and 245.4 MB in the end (delta: 10.5 MB). Free memory was 180.9 MB in the beginning and 142.9 MB in the end (delta: 38.0 MB). Peak memory consumption was 48.5 MB. Max. memory is 7.1 GB. [2019-10-07 03:54:44,511 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.28 ms. Allocated memory is still 146.3 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 677.54 ms. Allocated memory was 146.3 MB in the beginning and 204.5 MB in the end (delta: 58.2 MB). Free memory was 101.0 MB in the beginning and 166.7 MB in the end (delta: -65.6 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 88.71 ms. Allocated memory is still 204.5 MB. Free memory was 166.1 MB in the beginning and 162.2 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1188.70 ms. Allocated memory was 204.5 MB in the beginning and 234.9 MB in the end (delta: 30.4 MB). Free memory was 162.2 MB in the beginning and 182.2 MB in the end (delta: -20.0 MB). Peak memory consumption was 75.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3226.09 ms. Allocated memory was 234.9 MB in the beginning and 245.4 MB in the end (delta: 10.5 MB). Free memory was 180.9 MB in the beginning and 142.9 MB in the end (delta: 38.0 MB). Peak memory consumption was 48.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...