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/forester-heap/dll-queue-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:58:37,132 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:58:37,137 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:58:37,154 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:58:37,155 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:58:37,156 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:58:37,158 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:58:37,167 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:58:37,172 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:58:37,175 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:58:37,176 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:58:37,178 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:58:37,178 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:58:37,180 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:58:37,183 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:58:37,184 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:58:37,185 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:58:37,186 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:58:37,187 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:58:37,192 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:58:37,196 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:58:37,199 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:58:37,201 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:58:37,202 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:58:37,204 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:58:37,204 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:58:37,204 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:58:37,206 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:58:37,207 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:58:37,208 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:58:37,208 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:58:37,209 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:58:37,210 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:58:37,210 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:58:37,212 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:58:37,212 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:58:37,213 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:58:37,213 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:58:37,214 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:58:37,214 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:58:37,216 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:58:37,217 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 01:58:37,249 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:58:37,249 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:58:37,253 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:58:37,253 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:58:37,253 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:58:37,253 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:58:37,254 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:58:37,254 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:58:37,254 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:58:37,254 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:58:37,254 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:58:37,255 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:58:37,255 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:58:37,255 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:58:37,256 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:58:37,256 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:58:37,256 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:58:37,256 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:58:37,257 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:58:37,257 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:58:37,257 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:58:37,257 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:58:37,257 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:58:37,258 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:58:37,258 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:58:37,258 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:58:37,259 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:58:37,259 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:58:37,259 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 01:58:37,556 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:58:37,574 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:58:37,578 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:58:37,579 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:58:37,580 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:58:37,580 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-queue-1.i [2019-10-15 01:58:37,651 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ca9a7365/11ca9165e5e84cb0b98aab9fd3400df6/FLAGdc4269d8d [2019-10-15 01:58:38,194 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:58:38,194 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-queue-1.i [2019-10-15 01:58:38,211 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ca9a7365/11ca9165e5e84cb0b98aab9fd3400df6/FLAGdc4269d8d [2019-10-15 01:58:38,475 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ca9a7365/11ca9165e5e84cb0b98aab9fd3400df6 [2019-10-15 01:58:38,485 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:58:38,486 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:58:38,487 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:58:38,487 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:58:38,490 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:58:38,491 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:58:38" (1/1) ... [2019-10-15 01:58:38,494 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15fb5a7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:58:38, skipping insertion in model container [2019-10-15 01:58:38,494 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:58:38" (1/1) ... [2019-10-15 01:58:38,502 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:58:38,557 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:58:39,035 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:58:39,051 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:58:39,131 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:58:39,191 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:58:39,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:58:39 WrapperNode [2019-10-15 01:58:39,192 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:58:39,192 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:58:39,193 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:58:39,193 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:58:39,206 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:58:39" (1/1) ... [2019-10-15 01:58:39,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:58:39" (1/1) ... [2019-10-15 01:58:39,229 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:58:39" (1/1) ... [2019-10-15 01:58:39,229 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:58:39" (1/1) ... [2019-10-15 01:58:39,248 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:58:39" (1/1) ... [2019-10-15 01:58:39,258 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:58:39" (1/1) ... [2019-10-15 01:58:39,261 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:58:39" (1/1) ... [2019-10-15 01:58:39,268 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:58:39,268 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:58:39,269 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:58:39,269 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:58:39,270 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:58:39" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:58:39,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:58:39,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:58:39,317 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:58:39,317 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-15 01:58:39,317 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-15 01:58:39,318 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-15 01:58:39,318 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-15 01:58:39,318 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-15 01:58:39,318 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-15 01:58:39,318 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-15 01:58:39,319 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-15 01:58:39,319 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-15 01:58:39,319 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-15 01:58:39,319 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-15 01:58:39,319 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-15 01:58:39,319 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-15 01:58:39,319 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-15 01:58:39,320 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-15 01:58:39,320 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-15 01:58:39,320 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-15 01:58:39,320 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-15 01:58:39,320 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-15 01:58:39,320 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-15 01:58:39,321 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-15 01:58:39,321 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-15 01:58:39,321 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-15 01:58:39,321 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-15 01:58:39,321 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-15 01:58:39,321 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-15 01:58:39,321 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-15 01:58:39,322 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-15 01:58:39,322 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-15 01:58:39,322 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-15 01:58:39,322 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-15 01:58:39,322 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-15 01:58:39,322 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-15 01:58:39,323 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-15 01:58:39,323 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-15 01:58:39,323 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-15 01:58:39,323 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-15 01:58:39,323 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-15 01:58:39,323 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-15 01:58:39,324 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-15 01:58:39,324 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-15 01:58:39,324 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-15 01:58:39,324 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-15 01:58:39,324 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-15 01:58:39,324 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-15 01:58:39,325 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-15 01:58:39,325 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-15 01:58:39,325 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-15 01:58:39,325 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-15 01:58:39,325 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-15 01:58:39,325 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:58:39,325 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-15 01:58:39,326 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-15 01:58:39,326 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:58:39,326 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-15 01:58:39,326 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-15 01:58:39,326 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-15 01:58:39,326 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-15 01:58:39,327 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-15 01:58:39,327 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-15 01:58:39,327 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-15 01:58:39,327 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-15 01:58:39,327 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-15 01:58:39,327 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 01:58:39,327 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-15 01:58:39,328 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-15 01:58:39,328 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-15 01:58:39,328 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-15 01:58:39,328 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-15 01:58:39,328 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-15 01:58:39,329 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-15 01:58:39,329 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-15 01:58:39,329 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-15 01:58:39,329 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-15 01:58:39,329 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-15 01:58:39,329 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-15 01:58:39,330 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-15 01:58:39,330 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-15 01:58:39,330 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-15 01:58:39,330 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-15 01:58:39,330 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-15 01:58:39,330 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-15 01:58:39,330 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-15 01:58:39,331 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-15 01:58:39,331 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-15 01:58:39,331 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-15 01:58:39,331 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-15 01:58:39,331 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-15 01:58:39,331 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-15 01:58:39,332 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-15 01:58:39,332 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-15 01:58:39,332 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-15 01:58:39,332 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-15 01:58:39,332 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-15 01:58:39,332 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-15 01:58:39,333 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-15 01:58:39,333 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-15 01:58:39,333 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-15 01:58:39,333 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-15 01:58:39,333 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-15 01:58:39,333 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-15 01:58:39,334 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-15 01:58:39,334 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-15 01:58:39,334 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:58:39,334 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:58:39,334 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:58:39,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:58:39,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:58:39,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:58:39,335 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:58:39,335 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:58:39,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:58:39,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:58:39,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:58:40,138 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:58:40,139 INFO L284 CfgBuilder]: Removed 31 assume(true) statements. [2019-10-15 01:58:40,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:58:40 BoogieIcfgContainer [2019-10-15 01:58:40,140 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:58:40,142 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:58:40,142 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:58:40,145 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:58:40,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:58:38" (1/3) ... [2019-10-15 01:58:40,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cad07d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:58:40, skipping insertion in model container [2019-10-15 01:58:40,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:58:39" (2/3) ... [2019-10-15 01:58:40,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cad07d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:58:40, skipping insertion in model container [2019-10-15 01:58:40,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:58:40" (3/3) ... [2019-10-15 01:58:40,149 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-queue-1.i [2019-10-15 01:58:40,160 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:58:40,168 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 14 error locations. [2019-10-15 01:58:40,177 INFO L249 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2019-10-15 01:58:40,197 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:58:40,198 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:58:40,198 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:58:40,198 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:58:40,198 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:58:40,199 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:58:40,199 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:58:40,199 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:58:40,218 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states. [2019-10-15 01:58:40,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-10-15 01:58:40,224 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:58:40,225 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:58:40,229 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:58:40,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:58:40,233 INFO L82 PathProgramCache]: Analyzing trace with hash -720600283, now seen corresponding path program 1 times [2019-10-15 01:58:40,242 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:58:40,242 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468503561] [2019-10-15 01:58:40,243 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:58:40,243 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:58:40,243 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:58:40,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:58:40,425 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 01:58:40,426 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468503561] [2019-10-15 01:58:40,427 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:58:40,427 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:58:40,427 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214728186] [2019-10-15 01:58:40,432 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:58:40,432 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:58:40,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:58:40,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:58:40,448 INFO L87 Difference]: Start difference. First operand 82 states. Second operand 2 states. [2019-10-15 01:58:40,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:58:40,476 INFO L93 Difference]: Finished difference Result 159 states and 257 transitions. [2019-10-15 01:58:40,476 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:58:40,477 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2019-10-15 01:58:40,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:58:40,490 INFO L225 Difference]: With dead ends: 159 [2019-10-15 01:58:40,490 INFO L226 Difference]: Without dead ends: 78 [2019-10-15 01:58:40,496 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 01:58:40,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2019-10-15 01:58:40,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2019-10-15 01:58:40,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2019-10-15 01:58:40,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 82 transitions. [2019-10-15 01:58:40,545 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 82 transitions. Word has length 8 [2019-10-15 01:58:40,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:58:40,546 INFO L462 AbstractCegarLoop]: Abstraction has 78 states and 82 transitions. [2019-10-15 01:58:40,546 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:58:40,546 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 82 transitions. [2019-10-15 01:58:40,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-15 01:58:40,547 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:58:40,547 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:58:40,547 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:58:40,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:58:40,548 INFO L82 PathProgramCache]: Analyzing trace with hash -865194756, now seen corresponding path program 1 times [2019-10-15 01:58:40,548 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:58:40,548 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660784600] [2019-10-15 01:58:40,549 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:58:40,549 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:58:40,549 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:58:40,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:58:40,699 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 01:58:40,699 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660784600] [2019-10-15 01:58:40,700 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:58:40,700 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:58:40,700 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468340056] [2019-10-15 01:58:40,702 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:58:40,702 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:58:40,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:58:40,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:58:40,703 INFO L87 Difference]: Start difference. First operand 78 states and 82 transitions. Second operand 3 states. [2019-10-15 01:58:40,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:58:40,759 INFO L93 Difference]: Finished difference Result 78 states and 82 transitions. [2019-10-15 01:58:40,760 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:58:40,760 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-10-15 01:58:40,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:58:40,761 INFO L225 Difference]: With dead ends: 78 [2019-10-15 01:58:40,762 INFO L226 Difference]: Without dead ends: 68 [2019-10-15 01:58:40,763 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 01:58:40,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2019-10-15 01:58:40,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2019-10-15 01:58:40,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2019-10-15 01:58:40,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 72 transitions. [2019-10-15 01:58:40,780 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 72 transitions. Word has length 9 [2019-10-15 01:58:40,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:58:40,781 INFO L462 AbstractCegarLoop]: Abstraction has 68 states and 72 transitions. [2019-10-15 01:58:40,781 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:58:40,781 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 72 transitions. [2019-10-15 01:58:40,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-15 01:58:40,784 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:58:40,784 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:58:40,785 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:58:40,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:58:40,787 INFO L82 PathProgramCache]: Analyzing trace with hash 1771622400, now seen corresponding path program 1 times [2019-10-15 01:58:40,788 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:58:40,788 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121130413] [2019-10-15 01:58:40,788 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:58:40,788 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:58:40,788 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:58:40,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:58:40,914 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 01:58:40,915 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121130413] [2019-10-15 01:58:40,917 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:58:40,917 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 01:58:40,917 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858613409] [2019-10-15 01:58:40,918 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 01:58:40,918 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:58:40,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 01:58:40,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 01:58:40,920 INFO L87 Difference]: Start difference. First operand 68 states and 72 transitions. Second operand 4 states. [2019-10-15 01:58:40,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:58:40,969 INFO L93 Difference]: Finished difference Result 68 states and 72 transitions. [2019-10-15 01:58:40,970 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:58:40,970 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-10-15 01:58:40,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:58:40,971 INFO L225 Difference]: With dead ends: 68 [2019-10-15 01:58:40,971 INFO L226 Difference]: Without dead ends: 66 [2019-10-15 01:58:40,972 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:58:40,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2019-10-15 01:58:40,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2019-10-15 01:58:40,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2019-10-15 01:58:40,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 70 transitions. [2019-10-15 01:58:40,979 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 70 transitions. Word has length 11 [2019-10-15 01:58:40,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:58:40,980 INFO L462 AbstractCegarLoop]: Abstraction has 66 states and 70 transitions. [2019-10-15 01:58:40,980 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 01:58:40,980 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 70 transitions. [2019-10-15 01:58:40,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-15 01:58:40,981 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:58:40,981 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:58:40,982 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:58:40,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:58:40,983 INFO L82 PathProgramCache]: Analyzing trace with hash -1429193867, now seen corresponding path program 1 times [2019-10-15 01:58:40,983 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:58:40,983 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389145469] [2019-10-15 01:58:40,983 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:58:40,983 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:58:40,984 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:58:40,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:58:41,028 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 01:58:41,028 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389145469] [2019-10-15 01:58:41,029 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:58:41,029 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:58:41,031 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626136616] [2019-10-15 01:58:41,032 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:58:41,032 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:58:41,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:58:41,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:58:41,033 INFO L87 Difference]: Start difference. First operand 66 states and 70 transitions. Second operand 3 states. [2019-10-15 01:58:41,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:58:41,117 INFO L93 Difference]: Finished difference Result 134 states and 144 transitions. [2019-10-15 01:58:41,119 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:58:41,120 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2019-10-15 01:58:41,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:58:41,121 INFO L225 Difference]: With dead ends: 134 [2019-10-15 01:58:41,121 INFO L226 Difference]: Without dead ends: 82 [2019-10-15 01:58:41,122 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 01:58:41,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2019-10-15 01:58:41,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 73. [2019-10-15 01:58:41,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2019-10-15 01:58:41,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 78 transitions. [2019-10-15 01:58:41,138 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 78 transitions. Word has length 15 [2019-10-15 01:58:41,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:58:41,138 INFO L462 AbstractCegarLoop]: Abstraction has 73 states and 78 transitions. [2019-10-15 01:58:41,138 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:58:41,139 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 78 transitions. [2019-10-15 01:58:41,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-15 01:58:41,141 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:58:41,142 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 01:58:41,142 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:58:41,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:58:41,142 INFO L82 PathProgramCache]: Analyzing trace with hash -529264867, now seen corresponding path program 1 times [2019-10-15 01:58:41,143 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:58:41,143 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034887425] [2019-10-15 01:58:41,143 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:58:41,143 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:58:41,143 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:58:41,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:58:41,198 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 01:58:41,198 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034887425] [2019-10-15 01:58:41,199 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:58:41,199 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 01:58:41,200 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063166381] [2019-10-15 01:58:41,200 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 01:58:41,200 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:58:41,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 01:58:41,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 01:58:41,201 INFO L87 Difference]: Start difference. First operand 73 states and 78 transitions. Second operand 4 states. [2019-10-15 01:58:41,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:58:41,276 INFO L93 Difference]: Finished difference Result 82 states and 87 transitions. [2019-10-15 01:58:41,276 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 01:58:41,276 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2019-10-15 01:58:41,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:58:41,277 INFO L225 Difference]: With dead ends: 82 [2019-10-15 01:58:41,277 INFO L226 Difference]: Without dead ends: 68 [2019-10-15 01:58:41,278 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:58:41,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2019-10-15 01:58:41,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2019-10-15 01:58:41,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2019-10-15 01:58:41,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 72 transitions. [2019-10-15 01:58:41,284 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 72 transitions. Word has length 18 [2019-10-15 01:58:41,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:58:41,285 INFO L462 AbstractCegarLoop]: Abstraction has 68 states and 72 transitions. [2019-10-15 01:58:41,285 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 01:58:41,285 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 72 transitions. [2019-10-15 01:58:41,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-10-15 01:58:41,286 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:58:41,286 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] [2019-10-15 01:58:41,287 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:58:41,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:58:41,287 INFO L82 PathProgramCache]: Analyzing trace with hash -2109931812, now seen corresponding path program 1 times [2019-10-15 01:58:41,287 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:58:41,287 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362306781] [2019-10-15 01:58:41,288 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:58:41,288 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:58:41,288 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:58:41,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:58:41,405 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:58:41,405 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362306781] [2019-10-15 01:58:41,406 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [155246834] [2019-10-15 01:58:41,406 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 01:58:41,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:58:41,519 INFO L256 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 19 conjunts are in the unsatisfiable core [2019-10-15 01:58:41,526 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:58:41,590 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 01:58:41,591 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 01:58:41,605 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:58:41,606 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-15 01:58:41,606 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:15 [2019-10-15 01:58:41,644 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:58:41,645 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 11 treesize of output 15 [2019-10-15 01:58:41,645 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 01:58:41,672 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:58:41,677 INFO L392 ElimStorePlain]: Different costs {0=[|#memory_$Pointer$.offset|, |v_#memory_$Pointer$.offset_41|], 10=[|v_#memory_$Pointer$.base_41|]} [2019-10-15 01:58:41,684 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-15 01:58:41,698 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:58:41,698 INFO L464 ElimStorePlain]: Eliminatee |v_#memory_$Pointer$.offset_41| vanished before elimination [2019-10-15 01:58:41,703 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-15 01:58:41,749 INFO L341 Elim1Store]: treesize reduction 73, result has 29.1 percent of original size [2019-10-15 01:58:41,750 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 43 treesize of output 37 [2019-10-15 01:58:41,750 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-10-15 01:58:41,771 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:58:41,773 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:58:41,785 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-10-15 01:58:41,786 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 7 variables, input treesize:343, output treesize:54 [2019-10-15 01:58:41,786 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:58:41,826 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:58:43,984 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:58:43,985 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 30 [2019-10-15 01:58:43,987 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 01:58:43,998 INFO L567 ElimStorePlain]: treesize reduction 12, result has 42.9 percent of original size [2019-10-15 01:58:43,998 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-15 01:58:43,999 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:35, output treesize:4 [2019-10-15 01:58:44,004 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:58:44,005 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:58:44,013 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:58:44,014 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:58:44,016 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:58:44,049 INFO L392 ElimStorePlain]: Different costs {0=[v_prenex_10, |#memory_$Pointer$.offset|, v_prenex_11, v_prenex_18, v_prenex_17, |v_#memory_$Pointer$.offset_42|], 2=[v_prenex_13, |v_#memory_$Pointer$.base_42|, v_prenex_6], 7=[v_prenex_4], 10=[v_prenex_9, |#memory_$Pointer$.base|, v_prenex_16]} [2019-10-15 01:58:44,070 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-15 01:58:44,076 INFO L172 IndexEqualityManager]: detected equality via solver [2019-10-15 01:58:44,217 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 52 [2019-10-15 01:58:44,218 INFO L341 Elim1Store]: treesize reduction 344, result has 32.3 percent of original size [2019-10-15 01:58:44,218 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 358 treesize of output 356 [2019-10-15 01:58:44,221 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 01:58:59,671 WARN L191 SmtUtils]: Spent 15.45 s on a formula simplification. DAG size of input: 203 DAG size of output: 203 [2019-10-15 01:58:59,671 INFO L567 ElimStorePlain]: treesize reduction 9, result has 99.3 percent of original size [2019-10-15 01:58:59,722 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-15 01:58:59,733 INFO L172 IndexEqualityManager]: detected equality via solver [2019-10-15 01:58:59,910 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 52 [2019-10-15 01:58:59,911 INFO L341 Elim1Store]: treesize reduction 344, result has 32.3 percent of original size [2019-10-15 01:58:59,912 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 352 treesize of output 350 [2019-10-15 01:58:59,914 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-15 01:59:08,140 WARN L191 SmtUtils]: Spent 8.23 s on a formula simplification that was a NOOP. DAG size: 219 [2019-10-15 01:59:08,141 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:08,303 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-15 01:59:08,541 INFO L235 Elim1Store]: Index analysis took 285 ms [2019-10-15 01:59:08,785 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:08,785 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 350 treesize of output 378 [2019-10-15 01:59:08,787 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:59:08,788 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:59:08,789 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-10-15 01:59:08,790 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:59:08,791 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:59:08,792 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:59:08,793 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:59:08,795 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-10-15 01:59:21,068 WARN L191 SmtUtils]: Spent 12.27 s on a formula simplification. DAG size of input: 221 DAG size of output: 187 [2019-10-15 01:59:21,069 INFO L567 ElimStorePlain]: treesize reduction 371, result has 73.7 percent of original size [2019-10-15 01:59:21,080 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-10-15 01:59:24,535 WARN L191 SmtUtils]: Spent 3.45 s on a formula simplification that was a NOOP. DAG size: 171 [2019-10-15 01:59:24,536 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:24,536 INFO L464 ElimStorePlain]: Eliminatee v_prenex_17 vanished before elimination [2019-10-15 01:59:24,608 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-15 01:59:24,702 INFO L235 Elim1Store]: Index analysis took 128 ms [2019-10-15 01:59:24,859 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:24,860 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 350 treesize of output 378 [2019-10-15 01:59:24,861 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:59:24,862 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:59:24,863 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:59:24,864 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-10-15 01:59:24,865 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:59:24,865 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:59:24,866 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:59:24,867 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:59:24,869 INFO L496 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2019-10-15 01:59:27,113 WARN L191 SmtUtils]: Spent 2.24 s on a formula simplification. DAG size of input: 176 DAG size of output: 139 [2019-10-15 01:59:27,113 INFO L567 ElimStorePlain]: treesize reduction 350, result has 66.9 percent of original size [2019-10-15 01:59:27,131 INFO L496 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-15 01:59:27,615 WARN L191 SmtUtils]: Spent 482.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-10-15 01:59:27,615 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:27,621 INFO L496 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-15 01:59:27,874 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2019-10-15 01:59:27,875 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:27,881 INFO L496 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-15 01:59:28,026 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2019-10-15 01:59:28,027 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:59:28,048 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 1484 treesize of output 1452 [2019-10-15 01:59:28,053 INFO L496 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.