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-ext2-properties/list_and_tree_cnstr-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 02:58:12,966 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 02:58:12,968 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 02:58:12,980 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 02:58:12,981 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 02:58:12,982 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 02:58:12,983 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 02:58:12,985 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 02:58:12,986 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 02:58:12,987 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 02:58:12,988 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 02:58:12,989 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 02:58:12,990 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 02:58:12,990 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 02:58:12,991 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 02:58:12,992 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 02:58:12,993 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 02:58:12,994 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 02:58:12,996 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 02:58:12,997 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 02:58:12,999 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 02:58:13,000 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 02:58:13,001 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 02:58:13,002 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 02:58:13,004 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 02:58:13,004 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 02:58:13,004 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 02:58:13,005 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 02:58:13,006 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 02:58:13,007 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 02:58:13,007 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 02:58:13,007 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 02:58:13,008 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 02:58:13,009 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 02:58:13,010 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 02:58:13,010 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 02:58:13,011 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 02:58:13,011 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 02:58:13,011 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 02:58:13,012 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 02:58:13,013 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 02:58:13,014 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 02:58:13,027 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 02:58:13,027 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 02:58:13,030 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 02:58:13,030 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 02:58:13,030 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 02:58:13,030 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 02:58:13,031 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 02:58:13,031 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 02:58:13,031 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 02:58:13,031 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 02:58:13,031 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 02:58:13,031 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 02:58:13,032 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 02:58:13,032 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 02:58:13,033 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 02:58:13,033 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 02:58:13,033 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 02:58:13,033 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 02:58:13,033 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 02:58:13,034 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 02:58:13,034 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 02:58:13,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 02:58:13,034 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 02:58:13,035 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 02:58:13,035 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 02:58:13,035 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 02:58:13,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 02:58:13,035 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 02:58:13,036 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-15 02:58:13,335 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 02:58:13,347 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 02:58:13,351 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 02:58:13,352 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 02:58:13,352 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 02:58:13,353 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext2-properties/list_and_tree_cnstr-2.i [2019-10-15 02:58:13,412 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e67e1922/41a147708e2e45e8b85d91753b1d540e/FLAG482ada4a5 [2019-10-15 02:58:13,901 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 02:58:13,902 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-ext2-properties/list_and_tree_cnstr-2.i [2019-10-15 02:58:13,920 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e67e1922/41a147708e2e45e8b85d91753b1d540e/FLAG482ada4a5 [2019-10-15 02:58:14,225 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e67e1922/41a147708e2e45e8b85d91753b1d540e [2019-10-15 02:58:14,235 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 02:58:14,237 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 02:58:14,238 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 02:58:14,238 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 02:58:14,242 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 02:58:14,243 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:58:14" (1/1) ... [2019-10-15 02:58:14,246 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f0acb1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:58:14, skipping insertion in model container [2019-10-15 02:58:14,246 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:58:14" (1/1) ... [2019-10-15 02:58:14,253 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 02:58:14,311 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 02:58:14,863 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 02:58:14,880 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 02:58:14,955 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 02:58:15,012 INFO L192 MainTranslator]: Completed translation [2019-10-15 02:58:15,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:58:15 WrapperNode [2019-10-15 02:58:15,012 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 02:58:15,013 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 02:58:15,013 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 02:58:15,013 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 02:58:15,027 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:58:15" (1/1) ... [2019-10-15 02:58:15,027 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:58:15" (1/1) ... [2019-10-15 02:58:15,043 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:58:15" (1/1) ... [2019-10-15 02:58:15,044 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:58:15" (1/1) ... [2019-10-15 02:58:15,065 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:58:15" (1/1) ... [2019-10-15 02:58:15,078 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:58:15" (1/1) ... [2019-10-15 02:58:15,082 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:58:15" (1/1) ... [2019-10-15 02:58:15,089 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 02:58:15,089 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 02:58:15,089 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 02:58:15,090 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 02:58:15,090 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:58:15" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 02:58:15,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 02:58:15,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 02:58:15,146 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-15 02:58:15,147 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-15 02:58:15,147 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-10-15 02:58:15,148 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 02:58:15,148 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 02:58:15,149 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 02:58:15,149 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-15 02:58:15,149 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-15 02:58:15,149 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-15 02:58:15,150 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-15 02:58:15,150 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-15 02:58:15,151 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-15 02:58:15,151 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-15 02:58:15,151 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-15 02:58:15,153 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-15 02:58:15,153 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-15 02:58:15,153 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-15 02:58:15,154 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-15 02:58:15,154 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-15 02:58:15,155 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-15 02:58:15,155 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-15 02:58:15,155 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-15 02:58:15,155 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-15 02:58:15,155 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-15 02:58:15,156 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-15 02:58:15,157 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-15 02:58:15,157 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-15 02:58:15,157 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-15 02:58:15,157 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-15 02:58:15,157 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-15 02:58:15,157 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-15 02:58:15,158 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-15 02:58:15,158 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-15 02:58:15,158 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-15 02:58:15,158 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-15 02:58:15,158 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-15 02:58:15,159 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-15 02:58:15,159 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-15 02:58:15,159 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-15 02:58:15,159 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-15 02:58:15,159 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-15 02:58:15,160 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-15 02:58:15,160 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-15 02:58:15,160 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-15 02:58:15,160 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-15 02:58:15,160 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-15 02:58:15,160 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-15 02:58:15,160 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-15 02:58:15,161 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-15 02:58:15,161 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-15 02:58:15,161 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-15 02:58:15,162 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-15 02:58:15,162 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-15 02:58:15,162 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-15 02:58:15,162 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-15 02:58:15,162 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-15 02:58:15,163 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-15 02:58:15,163 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-15 02:58:15,163 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 02:58:15,163 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-15 02:58:15,163 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-15 02:58:15,163 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 02:58:15,164 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-15 02:58:15,164 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-15 02:58:15,164 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-15 02:58:15,164 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-15 02:58:15,165 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-15 02:58:15,165 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-15 02:58:15,165 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-15 02:58:15,165 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-15 02:58:15,166 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-15 02:58:15,166 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 02:58:15,166 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-15 02:58:15,167 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-15 02:58:15,167 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-15 02:58:15,167 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-15 02:58:15,168 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-15 02:58:15,168 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-15 02:58:15,169 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-15 02:58:15,169 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-15 02:58:15,169 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-15 02:58:15,169 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-15 02:58:15,169 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-15 02:58:15,169 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-15 02:58:15,169 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-15 02:58:15,170 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-15 02:58:15,170 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-15 02:58:15,171 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-15 02:58:15,171 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-15 02:58:15,171 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-15 02:58:15,171 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-15 02:58:15,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-15 02:58:15,171 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-15 02:58:15,172 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-15 02:58:15,172 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-15 02:58:15,172 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-15 02:58:15,172 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-15 02:58:15,172 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-15 02:58:15,172 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-15 02:58:15,172 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-15 02:58:15,173 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-15 02:58:15,173 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-15 02:58:15,173 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-15 02:58:15,173 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-15 02:58:15,173 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-15 02:58:15,173 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-15 02:58:15,173 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-15 02:58:15,174 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-15 02:58:15,174 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-15 02:58:15,174 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-15 02:58:15,174 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-15 02:58:15,174 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-10-15 02:58:15,174 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 02:58:15,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 02:58:15,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 02:58:15,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 02:58:15,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 02:58:15,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 02:58:15,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 02:58:15,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 02:58:15,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 02:58:15,543 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-10-15 02:58:16,656 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 02:58:16,656 INFO L284 CfgBuilder]: Removed 8 assume(true) statements. [2019-10-15 02:58:16,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:58:16 BoogieIcfgContainer [2019-10-15 02:58:16,658 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 02:58:16,659 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 02:58:16,660 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 02:58:16,663 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 02:58:16,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:58:14" (1/3) ... [2019-10-15 02:58:16,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24b007a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:58:16, skipping insertion in model container [2019-10-15 02:58:16,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:58:15" (2/3) ... [2019-10-15 02:58:16,665 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24b007a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:58:16, skipping insertion in model container [2019-10-15 02:58:16,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:58:16" (3/3) ... [2019-10-15 02:58:16,667 INFO L109 eAbstractionObserver]: Analyzing ICFG list_and_tree_cnstr-2.i [2019-10-15 02:58:16,679 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 02:58:16,689 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 02:58:16,703 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 02:58:16,739 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 02:58:16,739 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 02:58:16,739 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 02:58:16,740 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 02:58:16,745 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 02:58:16,746 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 02:58:16,746 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 02:58:16,746 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 02:58:16,764 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2019-10-15 02:58:16,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-15 02:58:16,770 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:58:16,771 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:58:16,773 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:58:16,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:58:16,779 INFO L82 PathProgramCache]: Analyzing trace with hash -1613074857, now seen corresponding path program 1 times [2019-10-15 02:58:16,788 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:58:16,788 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890773672] [2019-10-15 02:58:16,789 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:58:16,789 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:58:16,789 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:58:16,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:58:16,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 02:58:16,938 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890773672] [2019-10-15 02:58:16,940 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:58:16,940 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 02:58:16,940 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011383246] [2019-10-15 02:58:16,945 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 02:58:16,945 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:58:16,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 02:58:16,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 02:58:16,964 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2019-10-15 02:58:16,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:58:16,993 INFO L93 Difference]: Finished difference Result 81 states and 117 transitions. [2019-10-15 02:58:16,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 02:58:16,994 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-10-15 02:58:16,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:58:17,002 INFO L225 Difference]: With dead ends: 81 [2019-10-15 02:58:17,003 INFO L226 Difference]: Without dead ends: 34 [2019-10-15 02:58:17,006 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 [2019-10-15 02:58:17,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-10-15 02:58:17,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-10-15 02:58:17,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-10-15 02:58:17,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 41 transitions. [2019-10-15 02:58:17,045 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 41 transitions. Word has length 18 [2019-10-15 02:58:17,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:58:17,045 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 41 transitions. [2019-10-15 02:58:17,046 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 02:58:17,046 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 41 transitions. [2019-10-15 02:58:17,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-10-15 02:58:17,047 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:58:17,047 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:58:17,047 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:58:17,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:58:17,048 INFO L82 PathProgramCache]: Analyzing trace with hash 1270740144, now seen corresponding path program 1 times [2019-10-15 02:58:17,048 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:58:17,048 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690052623] [2019-10-15 02:58:17,049 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:58:17,049 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:58:17,049 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:58:17,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:58:17,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 02:58:17,116 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690052623] [2019-10-15 02:58:17,116 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:58:17,116 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:58:17,116 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148779787] [2019-10-15 02:58:17,118 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:58:17,118 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:58:17,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:58:17,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:58:17,119 INFO L87 Difference]: Start difference. First operand 34 states and 41 transitions. Second operand 3 states. [2019-10-15 02:58:17,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:58:17,148 INFO L93 Difference]: Finished difference Result 57 states and 69 transitions. [2019-10-15 02:58:17,148 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:58:17,148 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2019-10-15 02:58:17,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:58:17,150 INFO L225 Difference]: With dead ends: 57 [2019-10-15 02:58:17,150 INFO L226 Difference]: Without dead ends: 38 [2019-10-15 02:58:17,151 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:58:17,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-10-15 02:58:17,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 35. [2019-10-15 02:58:17,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-10-15 02:58:17,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2019-10-15 02:58:17,158 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 23 [2019-10-15 02:58:17,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:58:17,158 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2019-10-15 02:58:17,158 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:58:17,158 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2019-10-15 02:58:17,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-15 02:58:17,159 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:58:17,159 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:58:17,160 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:58:17,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:58:17,160 INFO L82 PathProgramCache]: Analyzing trace with hash 1872294584, now seen corresponding path program 1 times [2019-10-15 02:58:17,160 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:58:17,161 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74302103] [2019-10-15 02:58:17,161 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:58:17,161 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:58:17,161 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:58:17,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:58:17,279 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-15 02:58:17,280 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74302103] [2019-10-15 02:58:17,280 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:58:17,280 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 02:58:17,280 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426054938] [2019-10-15 02:58:17,281 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 02:58:17,281 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:58:17,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 02:58:17,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 02:58:17,282 INFO L87 Difference]: Start difference. First operand 35 states and 42 transitions. Second operand 5 states. [2019-10-15 02:58:17,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:58:17,451 INFO L93 Difference]: Finished difference Result 60 states and 71 transitions. [2019-10-15 02:58:17,452 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 02:58:17,452 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-10-15 02:58:17,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:58:17,456 INFO L225 Difference]: With dead ends: 60 [2019-10-15 02:58:17,456 INFO L226 Difference]: Without dead ends: 56 [2019-10-15 02:58:17,457 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-15 02:58:17,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2019-10-15 02:58:17,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 44. [2019-10-15 02:58:17,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2019-10-15 02:58:17,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 54 transitions. [2019-10-15 02:58:17,471 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 54 transitions. Word has length 27 [2019-10-15 02:58:17,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:58:17,473 INFO L462 AbstractCegarLoop]: Abstraction has 44 states and 54 transitions. [2019-10-15 02:58:17,474 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 02:58:17,474 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 54 transitions. [2019-10-15 02:58:17,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-15 02:58:17,476 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:58:17,476 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:58:17,477 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:58:17,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:58:17,477 INFO L82 PathProgramCache]: Analyzing trace with hash -267521581, now seen corresponding path program 1 times [2019-10-15 02:58:17,479 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:58:17,479 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881340993] [2019-10-15 02:58:17,479 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:58:17,479 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:58:17,479 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:58:17,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:58:17,596 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-15 02:58:17,596 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881340993] [2019-10-15 02:58:17,596 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:58:17,597 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 02:58:17,597 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183008456] [2019-10-15 02:58:17,597 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 02:58:17,598 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:58:17,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 02:58:17,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 02:58:17,598 INFO L87 Difference]: Start difference. First operand 44 states and 54 transitions. Second operand 5 states. [2019-10-15 02:58:17,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:58:17,728 INFO L93 Difference]: Finished difference Result 62 states and 73 transitions. [2019-10-15 02:58:17,731 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 02:58:17,731 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2019-10-15 02:58:17,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:58:17,732 INFO L225 Difference]: With dead ends: 62 [2019-10-15 02:58:17,732 INFO L226 Difference]: Without dead ends: 54 [2019-10-15 02:58:17,733 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-15 02:58:17,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2019-10-15 02:58:17,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 42. [2019-10-15 02:58:17,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-10-15 02:58:17,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 51 transitions. [2019-10-15 02:58:17,740 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 51 transitions. Word has length 29 [2019-10-15 02:58:17,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:58:17,740 INFO L462 AbstractCegarLoop]: Abstraction has 42 states and 51 transitions. [2019-10-15 02:58:17,740 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 02:58:17,741 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 51 transitions. [2019-10-15 02:58:17,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-15 02:58:17,742 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:58:17,742 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:58:17,742 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:58:17,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:58:17,743 INFO L82 PathProgramCache]: Analyzing trace with hash 757181395, now seen corresponding path program 1 times [2019-10-15 02:58:17,743 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:58:17,743 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973875644] [2019-10-15 02:58:17,743 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:58:17,744 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:58:17,744 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:58:17,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:58:17,814 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-15 02:58:17,815 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973875644] [2019-10-15 02:58:17,815 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:58:17,815 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 02:58:17,815 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212020471] [2019-10-15 02:58:17,816 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 02:58:17,816 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:58:17,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 02:58:17,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 02:58:17,818 INFO L87 Difference]: Start difference. First operand 42 states and 51 transitions. Second operand 5 states. [2019-10-15 02:58:17,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:58:17,950 INFO L93 Difference]: Finished difference Result 62 states and 73 transitions. [2019-10-15 02:58:17,950 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 02:58:17,951 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2019-10-15 02:58:17,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:58:17,952 INFO L225 Difference]: With dead ends: 62 [2019-10-15 02:58:17,952 INFO L226 Difference]: Without dead ends: 51 [2019-10-15 02:58:17,954 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-15 02:58:17,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2019-10-15 02:58:17,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 39. [2019-10-15 02:58:17,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-10-15 02:58:17,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 47 transitions. [2019-10-15 02:58:17,966 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 47 transitions. Word has length 29 [2019-10-15 02:58:17,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:58:17,970 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 47 transitions. [2019-10-15 02:58:17,970 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 02:58:17,971 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 47 transitions. [2019-10-15 02:58:17,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-15 02:58:17,972 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:58:17,972 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:58:17,972 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:58:17,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:58:17,973 INFO L82 PathProgramCache]: Analyzing trace with hash 1251181087, now seen corresponding path program 1 times [2019-10-15 02:58:17,973 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:58:17,974 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914751106] [2019-10-15 02:58:17,974 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:58:17,974 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:58:17,974 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:58:18,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:58:18,183 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-15 02:58:18,184 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914751106] [2019-10-15 02:58:18,184 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [375098968] [2019-10-15 02:58:18,184 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 02:58:18,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:58:18,311 INFO L256 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 24 conjunts are in the unsatisfiable core [2019-10-15 02:58:18,317 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 02:58:18,369 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-10-15 02:58:18,369 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 02:58:18,380 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 02:58:18,380 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-15 02:58:18,380 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-10-15 02:58:18,409 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 02:58:18,410 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2019-10-15 02:58:18,410 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 02:58:18,421 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 02:58:18,427 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 11 treesize of output 7 [2019-10-15 02:58:18,427 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-15 02:58:18,439 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 02:58:18,440 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-15 02:58:18,440 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:28, output treesize:18 [2019-10-15 02:58:18,458 INFO L341 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2019-10-15 02:58:18,458 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 11 [2019-10-15 02:58:18,459 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 02:58:18,464 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 02:58:18,464 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-15 02:58:18,464 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:12 [2019-10-15 02:58:18,484 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2019-10-15 02:58:18,485 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 02:58:18,491 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 02:58:18,492 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-10-15 02:58:18,493 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:23, output treesize:19 [2019-10-15 02:58:18,536 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2019-10-15 02:58:18,537 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 02:58:18,542 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 02:58:18,543 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-15 02:58:18,543 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:26, output treesize:3 [2019-10-15 02:58:18,548 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-15 02:58:18,548 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 02:58:18,576 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:58:18,594 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 02:58:18,597 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-15 02:58:18,603 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 02:58:18,604 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2019-10-15 02:58:18,604 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:54, output treesize:22 [2019-10-15 02:58:18,633 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:58:18,652 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 170 treesize of output 162 [2019-10-15 02:58:18,653 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:58:18,653 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:58:18,654 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:58:18,655 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 02:58:18,656 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:58:18,656 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:58:18,659 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 02:58:18,759 INFO L567 ElimStorePlain]: treesize reduction 307, result has 10.2 percent of original size [2019-10-15 02:58:18,760 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2019-10-15 02:58:18,761 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:34, output treesize:21 [2019-10-15 02:58:18,888 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-15 02:58:18,889 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1454607679] [2019-10-15 02:58:18,917 INFO L162 IcfgInterpreter]: Started Sifa with 29 locations of interest [2019-10-15 02:58:18,918 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 02:58:18,924 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 02:58:18,938 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 02:58:18,939 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 02:58:19,055 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 27 for LOIs [2019-10-15 02:58:20,721 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:20,740 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:20,786 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:20,831 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:20,843 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:20,856 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:20,868 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:20,880 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:20,892 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:20,904 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:20,915 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:20,926 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:20,965 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:20,976 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:20,988 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:20,999 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:22,585 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:22,590 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:22,607 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:22,609 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:22,656 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:22,657 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:22,701 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:22,703 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:22,733 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:22,735 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:23,077 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:23,091 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:23,122 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:23,135 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:23,146 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:23,156 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:23,166 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:23,207 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:23,235 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:23,243 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:23,324 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:23,360 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:23,391 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:23,421 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:23,429 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:23,437 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:24,755 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:24,757 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:24,767 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:24,769 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:24,814 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:24,816 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:24,832 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:24,834 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:24,855 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:24,856 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:25,195 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:25,208 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:25,287 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:25,323 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:25,334 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:25,371 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:25,381 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:25,392 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:25,403 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:25,413 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:25,475 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:25,508 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:25,540 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:25,549 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:25,559 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:25,567 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:26,906 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:26,908 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:26,918 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:26,920 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:26,957 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:26,958 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:26,973 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:26,974 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:26,989 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:26,991 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:27,272 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:27,283 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:27,294 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:27,303 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:27,313 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:27,414 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:27,424 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:27,433 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:27,443 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:27,454 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:27,463 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:27,472 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:27,480 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:27,489 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:27,552 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:27,606 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:28,865 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:28,866 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:28,885 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:28,886 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:28,920 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:28,921 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:28,956 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:28,958 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:28,970 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:28,971 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:29,264 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:29,275 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:29,332 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:29,363 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:29,392 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:29,401 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:29,410 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:29,418 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:29,427 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:29,457 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:29,466 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:29,475 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:29,484 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:29,492 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:29,539 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:29,547 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:30,910 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:30,911 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:30,919 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:30,920 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:30,945 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:30,946 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:30,962 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:30,963 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:30,975 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:30,976 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:31,302 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:31,313 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:31,322 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:31,332 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:31,364 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:31,397 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:31,428 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:31,456 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:31,489 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:31,501 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:31,510 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:31,544 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:31,554 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:31,563 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:31,571 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:31,579 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:32,905 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:32,906 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:32,921 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:32,921 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:32,953 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:32,954 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:32,968 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:32,968 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:32,980 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:32,981 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:33,282 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:33,296 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:33,309 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:33,321 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:33,361 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:33,374 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:33,446 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:33,510 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:33,581 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:33,590 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:33,598 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:33,606 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:33,615 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:33,625 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:33,652 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:33,660 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:34,890 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:34,891 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:34,902 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:34,903 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:34,938 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:34,939 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:34,953 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:34,954 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:34,962 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:34,963 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:35,126 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2019-10-15 02:58:35,358 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:35,395 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:35,405 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:35,416 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:35,426 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:35,435 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:35,444 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:35,493 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:35,521 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:35,549 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:35,578 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:35,587 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:35,614 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:35,641 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:35,648 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:35,656 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:37,005 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:37,007 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:37,025 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:37,028 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:37,097 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:37,099 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:37,155 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:37,157 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:37,187 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:37,189 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:37,468 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:37,478 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:37,510 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:37,520 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:37,550 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:37,580 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:37,589 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:37,599 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:37,609 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:37,683 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:37,692 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:37,721 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:37,729 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:37,738 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:37,766 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:37,774 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:39,033 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:39,034 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:39,043 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:39,044 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:39,068 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:39,069 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:39,090 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:39,092 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:39,103 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:39,104 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:39,425 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:39,434 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:39,485 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:39,496 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:39,505 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:39,514 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:39,523 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:39,532 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:39,542 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:39,549 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:39,559 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:39,568 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:39,600 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:39,629 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:39,658 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:39,706 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:40,959 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:40,960 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:40,969 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:40,971 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:40,997 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:40,998 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:41,013 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:41,015 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:41,024 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:41,025 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:41,375 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:41,386 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:41,395 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:41,405 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:41,414 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:41,447 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:41,458 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:41,467 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:41,476 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:41,507 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:41,538 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:41,604 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:41,612 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:41,620 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:41,630 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:41,638 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:43,121 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:43,122 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:43,131 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:43,131 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:43,158 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:43,159 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:43,172 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:43,174 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:43,182 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:43,183 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:43,472 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:43,483 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:43,492 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:43,502 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:43,511 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:43,520 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:43,568 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:43,577 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:43,646 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:43,655 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:43,664 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:43,672 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:43,701 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:43,709 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:43,754 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:43,761 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:44,988 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:44,989 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:44,997 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:44,998 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:45,023 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:45,023 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:45,035 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:45,036 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:45,044 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:45,045 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:45,518 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:45,552 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:45,607 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:45,656 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:45,665 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:45,674 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:45,683 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:45,693 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:45,703 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:45,713 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:45,719 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:45,729 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:45,761 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:45,768 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:45,816 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:45,824 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:47,033 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:47,034 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:47,045 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:47,046 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:47,069 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:47,070 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:47,088 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:47,089 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:47,099 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:47,100 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 02:58:47,350 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 10 for LOIs [2019-10-15 02:58:47,353 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-15 02:58:47,930 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-15 02:58:47,930 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 14] total 26 [2019-10-15 02:58:47,931 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176650899] [2019-10-15 02:58:47,932 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-10-15 02:58:47,932 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:58:47,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-10-15 02:58:47,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=580, Unknown=0, NotChecked=0, Total=650 [2019-10-15 02:58:47,933 INFO L87 Difference]: Start difference. First operand 39 states and 47 transitions. Second operand 26 states. [2019-10-15 02:58:50,674 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2019-10-15 02:58:50,874 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2019-10-15 02:58:51,076 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 60 [2019-10-15 02:58:51,320 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 56 [2019-10-15 02:58:51,546 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2019-10-15 02:58:52,024 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2019-10-15 02:58:52,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:58:52,468 INFO L93 Difference]: Finished difference Result 90 states and 109 transitions. [2019-10-15 02:58:52,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-10-15 02:58:52,469 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 31 [2019-10-15 02:58:52,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:58:52,470 INFO L225 Difference]: With dead ends: 90 [2019-10-15 02:58:52,471 INFO L226 Difference]: Without dead ends: 86 [2019-10-15 02:58:52,472 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 74 SyntacticMatches, 8 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=349, Invalid=1721, Unknown=0, NotChecked=0, Total=2070 [2019-10-15 02:58:52,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2019-10-15 02:58:52,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 48. [2019-10-15 02:58:52,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2019-10-15 02:58:52,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 58 transitions. [2019-10-15 02:58:52,479 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 58 transitions. Word has length 31 [2019-10-15 02:58:52,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:58:52,479 INFO L462 AbstractCegarLoop]: Abstraction has 48 states and 58 transitions. [2019-10-15 02:58:52,479 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-10-15 02:58:52,479 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 58 transitions. [2019-10-15 02:58:52,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-15 02:58:52,480 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:58:52,480 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:58:52,681 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 02:58:52,682 INFO L410 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:58:52,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:58:52,683 INFO L82 PathProgramCache]: Analyzing trace with hash 2114582751, now seen corresponding path program 1 times [2019-10-15 02:58:52,683 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:58:52,683 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005298236] [2019-10-15 02:58:52,684 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:58:52,684 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:58:52,684 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:58:52,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:58:52,800 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-15 02:58:52,801 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005298236] [2019-10-15 02:58:52,801 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1727866018] [2019-10-15 02:58:52,801 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true