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/dll2c_append_equal.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 22:56:01,950 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 22:56:01,953 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 22:56:01,967 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 22:56:01,967 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 22:56:01,969 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 22:56:01,971 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 22:56:01,980 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 22:56:01,985 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 22:56:01,988 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 22:56:01,990 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 22:56:01,991 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 22:56:01,991 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 22:56:01,993 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 22:56:01,996 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 22:56:01,998 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 22:56:01,999 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 22:56:02,000 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 22:56:02,002 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 22:56:02,006 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 22:56:02,008 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 22:56:02,009 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 22:56:02,010 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 22:56:02,010 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 22:56:02,014 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 22:56:02,014 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 22:56:02,014 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 22:56:02,015 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 22:56:02,016 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 22:56:02,017 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 22:56:02,017 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 22:56:02,018 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 22:56:02,018 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 22:56:02,019 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 22:56:02,020 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 22:56:02,020 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 22:56:02,021 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 22:56:02,021 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 22:56:02,021 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 22:56:02,022 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 22:56:02,023 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 22:56:02,024 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 [2019-10-13 22:56:02,039 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 22:56:02,039 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 22:56:02,040 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 22:56:02,040 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 22:56:02,041 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 22:56:02,041 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 22:56:02,041 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 22:56:02,041 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 22:56:02,041 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 22:56:02,042 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 22:56:02,042 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 22:56:02,042 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 22:56:02,042 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 22:56:02,042 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 22:56:02,043 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 22:56:02,043 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 22:56:02,043 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 22:56:02,043 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 22:56:02,043 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 22:56:02,044 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 22:56:02,044 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 22:56:02,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 22:56:02,044 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 22:56:02,044 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 22:56:02,045 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 22:56:02,045 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 22:56:02,045 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 22:56:02,045 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 22:56:02,045 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 [2019-10-13 22:56:02,326 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 22:56:02,342 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 22:56:02,345 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 22:56:02,347 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 22:56:02,347 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 22:56:02,348 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/dll2c_append_equal.i [2019-10-13 22:56:02,428 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ea9e2c3e/5b44cb7927854df2ba202fef8bd2809d/FLAGeb936fdc7 [2019-10-13 22:56:02,967 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 22:56:02,968 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/dll2c_append_equal.i [2019-10-13 22:56:02,981 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ea9e2c3e/5b44cb7927854df2ba202fef8bd2809d/FLAGeb936fdc7 [2019-10-13 22:56:03,316 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ea9e2c3e/5b44cb7927854df2ba202fef8bd2809d [2019-10-13 22:56:03,328 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 22:56:03,330 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 22:56:03,331 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 22:56:03,331 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 22:56:03,336 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 22:56:03,337 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:56:03" (1/1) ... [2019-10-13 22:56:03,340 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@516e4b22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:56:03, skipping insertion in model container [2019-10-13 22:56:03,340 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:56:03" (1/1) ... [2019-10-13 22:56:03,349 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 22:56:03,399 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 22:56:03,834 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 22:56:03,845 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 22:56:03,893 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 22:56:03,956 INFO L192 MainTranslator]: Completed translation [2019-10-13 22:56:03,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:56:03 WrapperNode [2019-10-13 22:56:03,957 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 22:56:03,958 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 22:56:03,958 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 22:56:03,958 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 22:56:03,972 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:56:03" (1/1) ... [2019-10-13 22:56:03,972 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:56:03" (1/1) ... [2019-10-13 22:56:03,993 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:56:03" (1/1) ... [2019-10-13 22:56:03,994 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:56:03" (1/1) ... [2019-10-13 22:56:04,015 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:56:03" (1/1) ... [2019-10-13 22:56:04,021 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:56:03" (1/1) ... [2019-10-13 22:56:04,025 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:56:03" (1/1) ... [2019-10-13 22:56:04,032 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 22:56:04,033 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 22:56:04,033 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 22:56:04,033 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 22:56:04,034 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:56:03" (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 [2019-10-13 22:56:04,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 22:56:04,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 22:56:04,100 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-13 22:56:04,101 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-13 22:56:04,101 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-10-13 22:56:04,101 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2019-10-13 22:56:04,101 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_create [2019-10-13 22:56:04,101 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_destroy [2019-10-13 22:56:04,101 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_append [2019-10-13 22:56:04,102 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 22:56:04,102 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 22:56:04,102 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-13 22:56:04,102 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-13 22:56:04,102 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-13 22:56:04,103 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-13 22:56:04,103 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-13 22:56:04,103 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-13 22:56:04,103 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-13 22:56:04,103 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-13 22:56:04,103 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-13 22:56:04,104 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-13 22:56:04,104 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-13 22:56:04,104 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-13 22:56:04,104 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-13 22:56:04,104 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-13 22:56:04,105 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-13 22:56:04,105 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-13 22:56:04,105 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-13 22:56:04,105 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-13 22:56:04,105 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-13 22:56:04,105 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-13 22:56:04,106 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-13 22:56:04,106 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-13 22:56:04,106 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-13 22:56:04,106 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-13 22:56:04,106 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-13 22:56:04,106 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-13 22:56:04,107 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-13 22:56:04,107 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-13 22:56:04,107 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-13 22:56:04,107 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-13 22:56:04,107 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-13 22:56:04,107 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-13 22:56:04,108 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-13 22:56:04,108 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-13 22:56:04,108 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-13 22:56:04,108 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-13 22:56:04,108 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-13 22:56:04,108 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-13 22:56:04,108 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-13 22:56:04,109 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-13 22:56:04,109 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-13 22:56:04,109 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-13 22:56:04,109 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-13 22:56:04,109 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-13 22:56:04,109 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-13 22:56:04,110 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-13 22:56:04,110 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-13 22:56:04,110 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-13 22:56:04,110 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-13 22:56:04,110 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-13 22:56:04,110 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-13 22:56:04,111 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-13 22:56:04,111 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 22:56:04,111 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 22:56:04,111 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-13 22:56:04,111 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 22:56:04,111 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-13 22:56:04,112 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-13 22:56:04,112 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-13 22:56:04,112 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-13 22:56:04,112 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-13 22:56:04,112 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-13 22:56:04,112 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-13 22:56:04,112 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-13 22:56:04,113 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-13 22:56:04,113 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-13 22:56:04,113 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-13 22:56:04,113 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-13 22:56:04,113 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-13 22:56:04,113 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-13 22:56:04,114 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-13 22:56:04,114 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-13 22:56:04,114 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-13 22:56:04,114 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-13 22:56:04,114 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-13 22:56:04,114 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-13 22:56:04,115 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-13 22:56:04,115 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-13 22:56:04,115 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-13 22:56:04,115 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-13 22:56:04,115 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-13 22:56:04,115 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-13 22:56:04,115 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-13 22:56:04,116 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-13 22:56:04,116 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-13 22:56:04,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-13 22:56:04,116 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-13 22:56:04,116 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-13 22:56:04,116 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-13 22:56:04,117 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-13 22:56:04,117 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-13 22:56:04,117 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-13 22:56:04,117 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-13 22:56:04,117 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-13 22:56:04,117 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-13 22:56:04,117 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-13 22:56:04,117 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-13 22:56:04,118 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-13 22:56:04,118 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-13 22:56:04,118 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-13 22:56:04,118 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-13 22:56:04,118 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-13 22:56:04,118 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-13 22:56:04,119 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-13 22:56:04,119 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-13 22:56:04,119 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-10-13 22:56:04,119 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2019-10-13 22:56:04,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 22:56:04,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 22:56:04,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 22:56:04,120 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_create [2019-10-13 22:56:04,120 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_destroy [2019-10-13 22:56:04,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 22:56:04,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 22:56:04,120 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_append [2019-10-13 22:56:04,120 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 22:56:04,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 22:56:04,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 22:56:04,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 22:56:04,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 22:56:04,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 22:56:04,623 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-10-13 22:56:05,186 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 22:56:05,186 INFO L284 CfgBuilder]: Removed 3 assume(true) statements. [2019-10-13 22:56:05,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:56:05 BoogieIcfgContainer [2019-10-13 22:56:05,188 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 22:56:05,189 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 22:56:05,189 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 22:56:05,192 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 22:56:05,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:56:03" (1/3) ... [2019-10-13 22:56:05,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dfc944e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:56:05, skipping insertion in model container [2019-10-13 22:56:05,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:56:03" (2/3) ... [2019-10-13 22:56:05,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dfc944e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:56:05, skipping insertion in model container [2019-10-13 22:56:05,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:56:05" (3/3) ... [2019-10-13 22:56:05,196 INFO L109 eAbstractionObserver]: Analyzing ICFG dll2c_append_equal.i [2019-10-13 22:56:05,206 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 22:56:05,216 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 22:56:05,226 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 22:56:05,264 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 22:56:05,265 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 22:56:05,265 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 22:56:05,265 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 22:56:05,265 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 22:56:05,265 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 22:56:05,266 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 22:56:05,266 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 22:56:05,289 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2019-10-13 22:56:05,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-13 22:56:05,295 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:56:05,296 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] [2019-10-13 22:56:05,298 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:56:05,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:56:05,303 INFO L82 PathProgramCache]: Analyzing trace with hash -1042628971, now seen corresponding path program 1 times [2019-10-13 22:56:05,312 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:56:05,313 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678136549] [2019-10-13 22:56:05,313 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:56:05,313 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:56:05,313 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:56:05,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:56:05,606 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-13 22:56:05,607 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678136549] [2019-10-13 22:56:05,608 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:56:05,608 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 22:56:05,609 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186291757] [2019-10-13 22:56:05,614 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 22:56:05,614 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:56:05,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 22:56:05,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 22:56:05,632 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 2 states. [2019-10-13 22:56:05,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:56:05,664 INFO L93 Difference]: Finished difference Result 58 states and 69 transitions. [2019-10-13 22:56:05,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 22:56:05,665 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 29 [2019-10-13 22:56:05,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:56:05,676 INFO L225 Difference]: With dead ends: 58 [2019-10-13 22:56:05,677 INFO L226 Difference]: Without dead ends: 30 [2019-10-13 22:56:05,681 INFO L600 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 [2019-10-13 22:56:05,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-10-13 22:56:05,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-10-13 22:56:05,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-10-13 22:56:05,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2019-10-13 22:56:05,741 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 29 [2019-10-13 22:56:05,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:56:05,744 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2019-10-13 22:56:05,744 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 22:56:05,744 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2019-10-13 22:56:05,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-13 22:56:05,747 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:56:05,747 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] [2019-10-13 22:56:05,748 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:56:05,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:56:05,749 INFO L82 PathProgramCache]: Analyzing trace with hash -1042642890, now seen corresponding path program 1 times [2019-10-13 22:56:05,749 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:56:05,750 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581368896] [2019-10-13 22:56:05,750 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:56:05,750 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:56:05,750 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:56:05,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:56:05,964 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-13 22:56:05,966 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581368896] [2019-10-13 22:56:05,966 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:56:05,966 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 22:56:05,966 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94736554] [2019-10-13 22:56:05,968 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 22:56:05,968 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:56:05,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 22:56:05,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 22:56:05,970 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand 5 states. [2019-10-13 22:56:06,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:56:06,058 INFO L93 Difference]: Finished difference Result 51 states and 58 transitions. [2019-10-13 22:56:06,058 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 22:56:06,058 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2019-10-13 22:56:06,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:56:06,060 INFO L225 Difference]: With dead ends: 51 [2019-10-13 22:56:06,060 INFO L226 Difference]: Without dead ends: 33 [2019-10-13 22:56:06,062 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-13 22:56:06,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-10-13 22:56:06,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2019-10-13 22:56:06,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-10-13 22:56:06,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2019-10-13 22:56:06,072 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 29 [2019-10-13 22:56:06,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:56:06,072 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2019-10-13 22:56:06,072 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 22:56:06,072 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2019-10-13 22:56:06,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-10-13 22:56:06,074 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:56:06,074 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:56:06,074 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:56:06,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:56:06,075 INFO L82 PathProgramCache]: Analyzing trace with hash 722914235, now seen corresponding path program 1 times [2019-10-13 22:56:06,075 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:56:06,075 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696430996] [2019-10-13 22:56:06,075 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:56:06,076 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:56:06,076 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:56:06,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:56:07,837 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2019-10-13 22:56:08,181 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2019-10-13 22:56:08,525 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 22:56:08,525 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696430996] [2019-10-13 22:56:08,526 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1703609564] [2019-10-13 22:56:08,526 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 [2019-10-13 22:56:08,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:56:08,801 WARN L254 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 141 conjunts are in the unsatisfiable core [2019-10-13 22:56:08,817 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 22:56:08,880 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-10-13 22:56:08,880 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-13 22:56:08,892 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 22:56:08,893 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-13 22:56:08,893 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:19 [2019-10-13 22:56:08,974 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2019-10-13 22:56:08,974 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-13 22:56:09,015 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 22:56:09,016 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-13 22:56:09,016 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:16, output treesize:3 [2019-10-13 22:56:09,448 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2019-10-13 22:56:09,448 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-13 22:56:09,463 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 22:56:09,464 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-13 22:56:09,464 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:35, output treesize:31 [2019-10-13 22:56:09,674 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 22:56:09,676 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 22:56:09,680 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 22:56:09,687 INFO L392 ElimStorePlain]: Different costs {0=[|v_#memory_int_120|, |v_#memory_$Pointer$.base_73|], 2=[|v_#memory_int_111|]} [2019-10-13 22:56:09,702 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 97 [2019-10-13 22:56:09,703 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-13 22:56:09,713 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 93 [2019-10-13 22:56:09,714 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-13 22:56:09,799 INFO L567 ElimStorePlain]: treesize reduction 95, result has 48.6 percent of original size [2019-10-13 22:56:09,805 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-13 22:56:09,806 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2019-10-13 22:56:09,806 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-10-13 22:56:09,831 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 22:56:09,839 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-13 22:56:09,840 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2019-10-13 22:56:09,841 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-10-13 22:56:09,865 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 22:56:09,867 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-13 22:56:09,867 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:215, output treesize:58 [2019-10-13 22:56:09,999 INFO L392 ElimStorePlain]: Different costs {2=[|v_#memory_int_121|, |v_#memory_int_112|], 10=[|v_#memory_$Pointer$.base_74|]} [2019-10-13 22:56:10,016 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-13 22:56:10,020 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 11 [2019-10-13 22:56:10,021 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-13 22:56:10,063 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 22:56:10,072 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-13 22:56:10,073 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2019-10-13 22:56:10,074 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-13 22:56:10,107 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 22:56:10,111 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-13 22:56:10,262 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2019-10-13 22:56:10,263 INFO L341 Elim1Store]: treesize reduction 27, result has 82.7 percent of original size [2019-10-13 22:56:10,264 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 103 treesize of output 168 [2019-10-13 22:56:10,266 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-10-13 22:56:10,363 INFO L567 ElimStorePlain]: treesize reduction 177, result has 37.7 percent of original size [2019-10-13 22:56:10,365 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 3 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-10-13 22:56:10,365 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:166, output treesize:107 [2019-10-13 22:56:12,562 WARN L191 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2019-10-13 22:56:12,582 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-13 22:56:12,584 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-13 22:56:12,595 INFO L341 Elim1Store]: treesize reduction 33, result has 25.0 percent of original size [2019-10-13 22:56:12,596 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 38 [2019-10-13 22:56:12,598 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-13 22:56:12,645 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 22:56:12,646 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-13 22:56:12,646 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:112, output treesize:109 [2019-10-13 22:56:12,969 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-13 22:56:12,970 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-13 22:56:12,971 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 10 [2019-10-13 22:56:12,972 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-13 22:56:13,019 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 22:56:13,021 INFO L392 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.offset_BEFORE_CALL_1|, |v_#memory_int_BEFORE_CALL_1|], 11=[|v_#memory_$Pointer$.base_BEFORE_CALL_1|]} [2019-10-13 22:56:13,025 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 93 [2019-10-13 22:56:13,026 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-13 22:56:13,067 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 22:56:13,073 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2019-10-13 22:56:13,074 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-10-13 22:56:13,105 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 22:56:13,139 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 22:56:13,139 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 95 treesize of output 81 [2019-10-13 22:56:13,140 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 22:56:13,141 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 22:56:13,142 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 22:56:13,143 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 22:56:13,144 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 22:56:13,145 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 22:56:13,146 INFO L496 ElimStorePlain]: Start of recursive call 5: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-10-13 22:56:13,205 INFO L567 ElimStorePlain]: treesize reduction 36, result has 51.4 percent of original size [2019-10-13 22:56:13,206 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-13 22:56:13,207 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:195, output treesize:13 [2019-10-13 22:56:13,314 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-13 22:56:13,352 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 22:56:13,357 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-13 22:56:13,381 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 22:56:13,383 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2019-10-13 22:56:13,383 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:115, output treesize:89 [2019-10-13 22:56:14,369 WARN L191 SmtUtils]: Spent 864.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2019-10-13 22:56:16,011 WARN L191 SmtUtils]: Spent 1.50 s on a formula simplification that was a NOOP. DAG size: 52 [2019-10-13 22:56:16,019 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 22:56:16,020 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 22:56:16,025 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 22:56:16,051 INFO L392 ElimStorePlain]: Different costs {0=[|v_#memory_int_116|, |v_#memory_int_119|], 2=[|v_#memory_int_115|, |v_#memory_int_117|, |v_#memory_int_118|], 10=[v_prenex_8, v_prenex_5], 45=[|v_#memory_$Pointer$.offset_75|, |v_#memory_$Pointer$.base_76|]} [2019-10-13 22:56:16,609 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-13 22:56:24,585 WARN L191 SmtUtils]: Spent 7.97 s on a formula simplification that was a NOOP. DAG size: 173 [2019-10-13 22:56:24,588 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 22:56:24,657 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-13 22:56:24,708 INFO L496 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-13 22:56:34,591 WARN L191 SmtUtils]: Spent 9.88 s on a formula simplification that was a NOOP. DAG size: 174 [2019-10-13 22:56:34,592 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 22:56:34,776 INFO L496 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-13 22:56:44,098 WARN L191 SmtUtils]: Spent 9.32 s on a formula simplification that was a NOOP. DAG size: 171 [2019-10-13 22:56:44,099 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 22:56:44,174 INFO L496 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-13 22:56:44,273 INFO L496 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts.