/usr/bin/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 --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/list-simple/dll2c_insert_equal.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 00:31:15,209 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 00:31:15,212 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 00:31:15,227 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 00:31:15,227 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 00:31:15,229 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 00:31:15,231 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 00:31:15,242 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 00:31:15,243 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 00:31:15,244 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 00:31:15,245 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 00:31:15,247 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 00:31:15,247 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 00:31:15,248 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 00:31:15,249 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 00:31:15,251 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 00:31:15,252 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 00:31:15,253 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 00:31:15,257 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 00:31:15,260 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 00:31:15,261 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 00:31:15,264 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 00:31:15,265 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 00:31:15,266 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 00:31:15,268 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 00:31:15,268 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 00:31:15,268 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 00:31:15,269 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 00:31:15,270 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 00:31:15,271 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 00:31:15,271 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 00:31:15,272 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 00:31:15,273 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 00:31:15,273 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 00:31:15,274 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 00:31:15,275 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 00:31:15,275 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 00:31:15,276 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 00:31:15,276 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 00:31:15,277 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 00:31:15,277 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 00:31:15,278 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 [2019-11-07 00:31:15,294 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 00:31:15,294 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 00:31:15,295 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 00:31:15,295 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 00:31:15,299 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 00:31:15,299 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 00:31:15,299 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 00:31:15,300 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 00:31:15,300 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 00:31:15,300 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 00:31:15,300 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 00:31:15,300 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 00:31:15,301 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 00:31:15,301 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 00:31:15,301 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 00:31:15,301 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 00:31:15,301 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 00:31:15,302 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 00:31:15,307 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 00:31:15,307 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 00:31:15,307 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 00:31:15,308 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:31:15,308 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 00:31:15,308 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 00:31:15,308 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 00:31:15,308 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 00:31:15,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 00:31:15,309 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 00:31:15,309 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-11-07 00:31:15,614 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 00:31:15,627 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 00:31:15,630 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 00:31:15,632 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 00:31:15,632 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 00:31:15,633 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/dll2c_insert_equal.i [2019-11-07 00:31:15,716 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3ca5b4cc/a23a220a2d0a4d23a2d1523348634bf1/FLAG23cacecba [2019-11-07 00:31:16,331 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 00:31:16,332 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/dll2c_insert_equal.i [2019-11-07 00:31:16,352 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3ca5b4cc/a23a220a2d0a4d23a2d1523348634bf1/FLAG23cacecba [2019-11-07 00:31:16,552 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3ca5b4cc/a23a220a2d0a4d23a2d1523348634bf1 [2019-11-07 00:31:16,562 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 00:31:16,563 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 00:31:16,565 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 00:31:16,565 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 00:31:16,568 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 00:31:16,569 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:31:16" (1/1) ... [2019-11-07 00:31:16,572 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@788c53ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:16, skipping insertion in model container [2019-11-07 00:31:16,572 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:31:16" (1/1) ... [2019-11-07 00:31:16,580 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 00:31:16,629 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 00:31:17,125 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:31:17,137 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 00:31:17,200 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:31:17,255 INFO L192 MainTranslator]: Completed translation [2019-11-07 00:31:17,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:17 WrapperNode [2019-11-07 00:31:17,255 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 00:31:17,256 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 00:31:17,256 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 00:31:17,256 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 00:31:17,270 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:17" (1/1) ... [2019-11-07 00:31:17,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:17" (1/1) ... [2019-11-07 00:31:17,293 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:17" (1/1) ... [2019-11-07 00:31:17,293 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:17" (1/1) ... [2019-11-07 00:31:17,319 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:17" (1/1) ... [2019-11-07 00:31:17,325 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:17" (1/1) ... [2019-11-07 00:31:17,329 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:17" (1/1) ... [2019-11-07 00:31:17,336 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 00:31:17,337 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 00:31:17,337 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 00:31:17,337 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 00:31:17,338 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:17" (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 [2019-11-07 00:31:17,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 00:31:17,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 00:31:17,397 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-07 00:31:17,397 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-07 00:31:17,397 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-11-07 00:31:17,397 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2019-11-07 00:31:17,398 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_create [2019-11-07 00:31:17,398 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_destroy [2019-11-07 00:31:17,398 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_insert [2019-11-07 00:31:17,398 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 00:31:17,398 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 00:31:17,399 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-07 00:31:17,399 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-07 00:31:17,399 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-07 00:31:17,399 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-07 00:31:17,399 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-07 00:31:17,399 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-07 00:31:17,400 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-07 00:31:17,400 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-07 00:31:17,400 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-07 00:31:17,400 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-07 00:31:17,400 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-07 00:31:17,400 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-07 00:31:17,401 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-07 00:31:17,401 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-07 00:31:17,401 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-07 00:31:17,401 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-07 00:31:17,401 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-07 00:31:17,402 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-07 00:31:17,402 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-07 00:31:17,402 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-07 00:31:17,402 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-07 00:31:17,402 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-07 00:31:17,402 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-07 00:31:17,402 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-07 00:31:17,403 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-07 00:31:17,403 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-07 00:31:17,403 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-07 00:31:17,403 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-07 00:31:17,403 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-07 00:31:17,403 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-07 00:31:17,404 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-07 00:31:17,404 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-07 00:31:17,404 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-07 00:31:17,404 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-07 00:31:17,404 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-07 00:31:17,404 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-07 00:31:17,405 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-07 00:31:17,405 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-07 00:31:17,405 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-07 00:31:17,405 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-07 00:31:17,405 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-07 00:31:17,405 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-07 00:31:17,406 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-07 00:31:17,406 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-07 00:31:17,406 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-07 00:31:17,406 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-07 00:31:17,406 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-07 00:31:17,406 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-07 00:31:17,406 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-07 00:31:17,407 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-07 00:31:17,407 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-07 00:31:17,407 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-07 00:31:17,407 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 00:31:17,407 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-07 00:31:17,407 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-07 00:31:17,408 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 00:31:17,408 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-11-07 00:31:17,408 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-07 00:31:17,408 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-07 00:31:17,408 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-07 00:31:17,408 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-07 00:31:17,408 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-07 00:31:17,409 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-07 00:31:17,409 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-07 00:31:17,409 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-07 00:31:17,409 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-07 00:31:17,409 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-07 00:31:17,409 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-07 00:31:17,410 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-07 00:31:17,410 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-07 00:31:17,410 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-07 00:31:17,410 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-07 00:31:17,410 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-07 00:31:17,410 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-07 00:31:17,411 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-07 00:31:17,411 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-07 00:31:17,411 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-07 00:31:17,411 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-07 00:31:17,411 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-07 00:31:17,411 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-07 00:31:17,411 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-07 00:31:17,412 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-07 00:31:17,412 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-07 00:31:17,412 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-07 00:31:17,412 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-07 00:31:17,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-07 00:31:17,412 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-07 00:31:17,413 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-07 00:31:17,413 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-07 00:31:17,413 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-07 00:31:17,413 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-07 00:31:17,413 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-07 00:31:17,413 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-07 00:31:17,413 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-07 00:31:17,413 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-07 00:31:17,414 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-07 00:31:17,414 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-07 00:31:17,414 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-07 00:31:17,414 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-07 00:31:17,414 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-07 00:31:17,414 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-07 00:31:17,414 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-07 00:31:17,415 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-07 00:31:17,415 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-07 00:31:17,415 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-07 00:31:17,415 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-11-07 00:31:17,415 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2019-11-07 00:31:17,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 00:31:17,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 00:31:17,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 00:31:17,416 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_create [2019-11-07 00:31:17,416 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_destroy [2019-11-07 00:31:17,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 00:31:17,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 00:31:17,416 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_insert [2019-11-07 00:31:17,417 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 00:31:17,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 00:31:17,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-07 00:31:17,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 00:31:17,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 00:31:17,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 00:31:17,894 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-11-07 00:31:18,148 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 00:31:18,148 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 00:31:18,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:31:18 BoogieIcfgContainer [2019-11-07 00:31:18,150 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 00:31:18,151 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 00:31:18,151 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 00:31:18,155 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 00:31:18,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:31:16" (1/3) ... [2019-11-07 00:31:18,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33325fd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:31:18, skipping insertion in model container [2019-11-07 00:31:18,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:17" (2/3) ... [2019-11-07 00:31:18,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33325fd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:31:18, skipping insertion in model container [2019-11-07 00:31:18,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:31:18" (3/3) ... [2019-11-07 00:31:18,167 INFO L109 eAbstractionObserver]: Analyzing ICFG dll2c_insert_equal.i [2019-11-07 00:31:18,178 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 00:31:18,188 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 00:31:18,200 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 00:31:18,226 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 00:31:18,226 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 00:31:18,226 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 00:31:18,227 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 00:31:18,227 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 00:31:18,227 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 00:31:18,227 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 00:31:18,227 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 00:31:18,246 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states. [2019-11-07 00:31:18,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-11-07 00:31:18,252 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:31:18,253 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:31:18,256 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:31:18,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:31:18,261 INFO L82 PathProgramCache]: Analyzing trace with hash 1731853532, now seen corresponding path program 1 times [2019-11-07 00:31:18,271 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:31:18,271 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330044766] [2019-11-07 00:31:18,272 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:31:18,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:31:18,503 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-11-07 00:31:18,504 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330044766] [2019-11-07 00:31:18,505 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:31:18,505 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 00:31:18,507 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231729203] [2019-11-07 00:31:18,527 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 00:31:18,529 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:31:18,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 00:31:18,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 00:31:18,548 INFO L87 Difference]: Start difference. First operand 57 states. Second operand 2 states. [2019-11-07 00:31:18,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:31:18,583 INFO L93 Difference]: Finished difference Result 99 states and 128 transitions. [2019-11-07 00:31:18,583 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 00:31:18,584 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 37 [2019-11-07 00:31:18,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:31:18,592 INFO L225 Difference]: With dead ends: 99 [2019-11-07 00:31:18,592 INFO L226 Difference]: Without dead ends: 42 [2019-11-07 00:31:18,596 INFO L630 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 [2019-11-07 00:31:18,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-11-07 00:31:18,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2019-11-07 00:31:18,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-11-07 00:31:18,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 50 transitions. [2019-11-07 00:31:18,642 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 50 transitions. Word has length 37 [2019-11-07 00:31:18,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:31:18,644 INFO L462 AbstractCegarLoop]: Abstraction has 42 states and 50 transitions. [2019-11-07 00:31:18,644 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 00:31:18,645 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 50 transitions. [2019-11-07 00:31:18,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-11-07 00:31:18,647 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:31:18,647 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:31:18,648 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:31:18,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:31:18,648 INFO L82 PathProgramCache]: Analyzing trace with hash -1838199702, now seen corresponding path program 1 times [2019-11-07 00:31:18,649 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:31:18,649 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559836518] [2019-11-07 00:31:18,649 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:31:18,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:31:18,826 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-11-07 00:31:18,826 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559836518] [2019-11-07 00:31:18,826 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:31:18,826 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:31:18,827 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022332377] [2019-11-07 00:31:18,828 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:31:18,828 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:31:18,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:31:18,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:31:18,829 INFO L87 Difference]: Start difference. First operand 42 states and 50 transitions. Second operand 3 states. [2019-11-07 00:31:18,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:31:18,853 INFO L93 Difference]: Finished difference Result 56 states and 67 transitions. [2019-11-07 00:31:18,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:31:18,854 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2019-11-07 00:31:18,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:31:18,858 INFO L225 Difference]: With dead ends: 56 [2019-11-07 00:31:18,858 INFO L226 Difference]: Without dead ends: 46 [2019-11-07 00:31:18,859 INFO L630 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 [2019-11-07 00:31:18,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-11-07 00:31:18,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 44. [2019-11-07 00:31:18,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2019-11-07 00:31:18,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 53 transitions. [2019-11-07 00:31:18,878 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 53 transitions. Word has length 37 [2019-11-07 00:31:18,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:31:18,881 INFO L462 AbstractCegarLoop]: Abstraction has 44 states and 53 transitions. [2019-11-07 00:31:18,881 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:31:18,881 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 53 transitions. [2019-11-07 00:31:18,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-07 00:31:18,883 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:31:18,884 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:31:18,884 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:31:18,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:31:18,884 INFO L82 PathProgramCache]: Analyzing trace with hash 651262008, now seen corresponding path program 1 times [2019-11-07 00:31:18,885 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:31:18,885 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167661920] [2019-11-07 00:31:18,886 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:31:18,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:31:19,023 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-07 00:31:19,023 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167661920] [2019-11-07 00:31:19,024 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:31:19,024 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 00:31:19,024 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310551623] [2019-11-07 00:31:19,025 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 00:31:19,025 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:31:19,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 00:31:19,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 00:31:19,026 INFO L87 Difference]: Start difference. First operand 44 states and 53 transitions. Second operand 5 states. [2019-11-07 00:31:19,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:31:19,096 INFO L93 Difference]: Finished difference Result 78 states and 95 transitions. [2019-11-07 00:31:19,096 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-07 00:31:19,096 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 38 [2019-11-07 00:31:19,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:31:19,097 INFO L225 Difference]: With dead ends: 78 [2019-11-07 00:31:19,097 INFO L226 Difference]: Without dead ends: 49 [2019-11-07 00:31:19,098 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-07 00:31:19,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-11-07 00:31:19,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 45. [2019-11-07 00:31:19,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-11-07 00:31:19,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 54 transitions. [2019-11-07 00:31:19,107 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 54 transitions. Word has length 38 [2019-11-07 00:31:19,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:31:19,107 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 54 transitions. [2019-11-07 00:31:19,107 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 00:31:19,107 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 54 transitions. [2019-11-07 00:31:19,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-11-07 00:31:19,109 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:31:19,109 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:31:19,109 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:31:19,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:31:19,110 INFO L82 PathProgramCache]: Analyzing trace with hash 1124252396, now seen corresponding path program 1 times [2019-11-07 00:31:19,110 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:31:19,110 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958087412] [2019-11-07 00:31:19,110 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:31:19,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:31:22,104 WARN L191 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2019-11-07 00:31:22,735 WARN L191 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2019-11-07 00:31:23,397 WARN L191 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 81 [2019-11-07 00:31:25,976 WARN L191 SmtUtils]: Spent 2.31 s on a formula simplification. DAG size of input: 209 DAG size of output: 177 [2019-11-07 00:31:27,410 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 150 DAG size of output: 123 [2019-11-07 00:31:27,669 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:31:27,670 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958087412] [2019-11-07 00:31:27,670 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1428375766] [2019-11-07 00:31:27,670 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 [2019-11-07 00:31:27,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:31:27,901 WARN L254 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 154 conjunts are in the unsatisfiable core [2019-11-07 00:31:27,917 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 00:31:27,997 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 [2019-11-07 00:31:27,998 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-07 00:31:28,003 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:31:28,003 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-07 00:31:28,004 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-07 00:31:28,408 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2019-11-07 00:31:28,409 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-07 00:31:28,414 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:31:28,415 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-07 00:31:28,415 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:3 [2019-11-07 00:31:28,509 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 9 [2019-11-07 00:31:28,509 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-07 00:31:28,520 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:31:28,520 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-07 00:31:28,521 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:27 [2019-11-07 00:31:28,667 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:31:28,667 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2019-11-07 00:31:28,668 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-07 00:31:28,715 INFO L567 ElimStorePlain]: treesize reduction 14, result has 76.3 percent of original size [2019-11-07 00:31:28,716 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-07 00:31:28,716 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:47, output treesize:45 [2019-11-07 00:31:28,826 INFO L392 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.base_49|], 2=[|v_#memory_int_57|]} [2019-11-07 00:31:28,837 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 [2019-11-07 00:31:28,837 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-07 00:31:28,866 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:31:28,877 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2019-11-07 00:31:28,878 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-07 00:31:28,900 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:31:28,900 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-07 00:31:28,901 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:67, output treesize:48 [2019-11-07 00:31:29,064 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 21 treesize of output 20 [2019-11-07 00:31:29,065 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-07 00:31:29,095 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:31:29,101 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 34 treesize of output 14 [2019-11-07 00:31:29,102 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-07 00:31:29,125 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:31:29,126 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-07 00:31:29,126 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:77, output treesize:54 [2019-11-07 00:31:29,442 INFO L392 ElimStorePlain]: Different costs {2=[|v_#memory_int_59|, |v_#memory_int_51|], 10=[|v_#memory_$Pointer$.base_51|]} [2019-11-07 00:31:29,451 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 42 treesize of output 14 [2019-11-07 00:31:29,451 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-07 00:31:29,489 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:31:29,501 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-07 00:31:29,502 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 34 treesize of output 14 [2019-11-07 00:31:29,503 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-07 00:31:29,537 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:31:29,542 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-07 00:31:29,687 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2019-11-07 00:31:29,687 INFO L341 Elim1Store]: treesize reduction 27, result has 82.7 percent of original size [2019-11-07 00:31:29,688 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 87 treesize of output 156 [2019-11-07 00:31:29,691 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-07 00:31:29,796 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 38 [2019-11-07 00:31:29,796 INFO L567 ElimStorePlain]: treesize reduction 177, result has 35.4 percent of original size [2019-11-07 00:31:29,797 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 3 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-11-07 00:31:29,798 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:158, output treesize:97 [2019-11-07 00:31:30,448 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 0 case distinctions, treesize of input 29 treesize of output 7 [2019-11-07 00:31:30,449 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-07 00:31:30,495 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:31:30,497 INFO L392 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.offset_BEFORE_CALL_1|, |v_#memory_int_BEFORE_CALL_1|], 11=[|v_#memory_$Pointer$.base_BEFORE_CALL_1|]} [2019-11-07 00:31:30,506 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 99 treesize of output 79 [2019-11-07 00:31:30,506 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-07 00:31:30,537 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:31:30,545 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 23 treesize of output 7 [2019-11-07 00:31:30,546 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-07 00:31:30,571 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:31:30,604 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:31:30,605 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 75 treesize of output 73 [2019-11-07 00:31:30,607 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 00:31:30,608 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 00:31:30,609 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 00:31:30,612 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 00:31:30,613 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 00:31:30,614 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 00:31:30,615 INFO L496 ElimStorePlain]: Start of recursive call 5: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-11-07 00:31:30,662 INFO L567 ElimStorePlain]: treesize reduction 36, result has 43.8 percent of original size [2019-11-07 00:31:30,663 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-07 00:31:30,663 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:173, output treesize:13 [2019-11-07 00:31:30,789 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-07 00:31:30,830 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:31:30,833 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-07 00:31:30,863 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:31:30,864 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-11-07 00:31:30,865 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:113, output treesize:87 [2019-11-07 00:31:32,178 WARN L191 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 46 [2019-11-07 00:31:33,983 WARN L191 SmtUtils]: Spent 1.61 s on a formula simplification that was a NOOP. DAG size: 56 [2019-11-07 00:31:35,380 WARN L191 SmtUtils]: Spent 1.22 s on a formula simplification that was a NOOP. DAG size: 58 [2019-11-07 00:31:36,906 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification that was a NOOP. DAG size: 62 [2019-11-07 00:31:36,921 INFO L392 ElimStorePlain]: Different costs {0=[|v_#memory_int_56|], 2=[|v_#memory_int_55|, |v_#memory_int_54|], 14=[|v_#memory_$Pointer$.offset_50|], 26=[|v_#memory_$Pointer$.base_53|]} [2019-11-07 00:31:36,949 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-07 00:31:37,315 WARN L191 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2019-11-07 00:31:37,315 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:31:37,327 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-07 00:31:37,640 WARN L191 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-11-07 00:31:37,640 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:31:37,650 INFO L496 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-07 00:31:37,939 WARN L191 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-11-07 00:31:37,939 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:31:37,943 INFO L496 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-07 00:31:38,518 WARN L191 SmtUtils]: Spent 574.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2019-11-07 00:31:38,518 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:31:38,531 INFO L496 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-07 00:31:38,750 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2019-11-07 00:31:38,751 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:31:38,752 INFO L496 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 5 dim-2 vars, End of recursive call: 10 dim-0 vars, and 1 xjuncts. [2019-11-07 00:31:38,752 INFO L221 ElimStorePlain]: Needed 6 recursive calls to eliminate 10 variables, input treesize:523, output treesize:1764 [2019-11-07 00:31:58,099 WARN L191 SmtUtils]: Spent 1.22 s on a formula simplification that was a NOOP. DAG size: 117 [2019-11-07 00:31:58,326 INFO L235 Elim1Store]: Index analysis took 119 ms [2019-11-07 00:31:58,339 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:31:58,340 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 34 treesize of output 44 [2019-11-07 00:31:58,341 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-07 00:31:59,385 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 114 [2019-11-07 00:31:59,386 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:31:59,405 INFO L392 ElimStorePlain]: Different costs {5=[|v_#memory_int_BEFORE_CALL_4|], 25=[|v_#memory_$Pointer$.offset_BEFORE_CALL_4|], 91=[|v_old(#memory_$Pointer$.base)_AFTER_CALL_5|]} [2019-11-07 00:31:59,443 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-07 00:31:59,453 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-07 00:31:59,466 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-07 00:31:59,490 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-07 00:31:59,493 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 586 treesize of output 82 [2019-11-07 00:31:59,494 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-07 00:31:59,915 WARN L191 SmtUtils]: Spent 419.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2019-11-07 00:31:59,915 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:31:59,919 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-07 00:31:59,929 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-07 00:32:00,433 WARN L191 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 78 [2019-11-07 00:32:00,433 INFO L341 Elim1Store]: treesize reduction 316, result has 48.8 percent of original size [2019-11-07 00:32:00,434 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 1110 treesize of output 974 [2019-11-07 00:32:00,438 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-07 00:32:00,911 WARN L191 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 96 [2019-11-07 00:32:00,911 INFO L567 ElimStorePlain]: treesize reduction 481, result has 62.0 percent of original size [2019-11-07 00:32:00,921 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-07 00:32:00,928 INFO L189 IndexEqualityManager]: detected not equals via solver