/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/sll2c_insert_unequal.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 00:31:54,252 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 00:31:54,255 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 00:31:54,273 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 00:31:54,273 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 00:31:54,276 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 00:31:54,277 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 00:31:54,282 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 00:31:54,286 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 00:31:54,290 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 00:31:54,291 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 00:31:54,292 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 00:31:54,293 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 00:31:54,296 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 00:31:54,297 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 00:31:54,300 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 00:31:54,301 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 00:31:54,302 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 00:31:54,306 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 00:31:54,310 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 00:31:54,312 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 00:31:54,315 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 00:31:54,317 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 00:31:54,318 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 00:31:54,322 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 00:31:54,322 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 00:31:54,322 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 00:31:54,323 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 00:31:54,325 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 00:31:54,328 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 00:31:54,328 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 00:31:54,329 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 00:31:54,330 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 00:31:54,331 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 00:31:54,335 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 00:31:54,335 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 00:31:54,336 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 00:31:54,336 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 00:31:54,336 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 00:31:54,339 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 00:31:54,340 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 00:31:54,341 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 00:31:54,361 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 00:31:54,361 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 00:31:54,363 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 00:31:54,363 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 00:31:54,363 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 00:31:54,364 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 00:31:54,364 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 00:31:54,364 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 00:31:54,364 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 00:31:54,364 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 00:31:54,366 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 00:31:54,366 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 00:31:54,366 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 00:31:54,366 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 00:31:54,367 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 00:31:54,367 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 00:31:54,367 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 00:31:54,367 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 00:31:54,367 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 00:31:54,368 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 00:31:54,368 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 00:31:54,368 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:31:54,368 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 00:31:54,369 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 00:31:54,369 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 00:31:54,369 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 00:31:54,369 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 00:31:54,369 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 00:31:54,369 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 00:31:54,639 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 00:31:54,656 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 00:31:54,660 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 00:31:54,661 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 00:31:54,662 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 00:31:54,662 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/sll2c_insert_unequal.i [2019-11-07 00:31:54,739 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/755c0dbcc/a22cc96c11aa42c9baaf01bab549e79c/FLAG6ed2d9d46 [2019-11-07 00:31:55,296 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 00:31:55,297 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/sll2c_insert_unequal.i [2019-11-07 00:31:55,309 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/755c0dbcc/a22cc96c11aa42c9baaf01bab549e79c/FLAG6ed2d9d46 [2019-11-07 00:31:55,553 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/755c0dbcc/a22cc96c11aa42c9baaf01bab549e79c [2019-11-07 00:31:55,563 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 00:31:55,565 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 00:31:55,566 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 00:31:55,566 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 00:31:55,572 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 00:31:55,573 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:31:55" (1/1) ... [2019-11-07 00:31:55,576 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22830b92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:55, skipping insertion in model container [2019-11-07 00:31:55,576 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:31:55" (1/1) ... [2019-11-07 00:31:55,582 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 00:31:55,625 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 00:31:56,070 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:31:56,080 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 00:31:56,131 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:31:56,182 INFO L192 MainTranslator]: Completed translation [2019-11-07 00:31:56,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:56 WrapperNode [2019-11-07 00:31:56,183 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 00:31:56,185 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 00:31:56,185 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 00:31:56,185 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 00:31:56,199 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:56" (1/1) ... [2019-11-07 00:31:56,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:56" (1/1) ... [2019-11-07 00:31:56,217 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:56" (1/1) ... [2019-11-07 00:31:56,218 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:56" (1/1) ... [2019-11-07 00:31:56,239 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:56" (1/1) ... [2019-11-07 00:31:56,246 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:56" (1/1) ... [2019-11-07 00:31:56,250 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:56" (1/1) ... [2019-11-07 00:31:56,257 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 00:31:56,258 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 00:31:56,258 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 00:31:56,258 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 00:31:56,259 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:56" (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 00:31:56,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 00:31:56,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 00:31:56,320 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-07 00:31:56,320 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-07 00:31:56,320 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-11-07 00:31:56,321 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2019-11-07 00:31:56,321 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_create [2019-11-07 00:31:56,321 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_destroy [2019-11-07 00:31:56,321 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_insert [2019-11-07 00:31:56,321 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 00:31:56,322 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 00:31:56,322 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-07 00:31:56,322 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-07 00:31:56,322 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-07 00:31:56,322 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-07 00:31:56,322 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-07 00:31:56,325 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-07 00:31:56,325 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-07 00:31:56,325 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-07 00:31:56,325 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-07 00:31:56,325 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-07 00:31:56,326 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-07 00:31:56,326 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-07 00:31:56,326 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-07 00:31:56,326 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-07 00:31:56,326 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-07 00:31:56,326 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-07 00:31:56,327 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-07 00:31:56,327 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-07 00:31:56,327 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-07 00:31:56,327 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-07 00:31:56,327 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-07 00:31:56,327 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-07 00:31:56,328 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-07 00:31:56,328 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-07 00:31:56,328 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-07 00:31:56,328 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-07 00:31:56,329 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-07 00:31:56,329 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-07 00:31:56,329 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-07 00:31:56,329 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-07 00:31:56,329 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-07 00:31:56,329 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-07 00:31:56,329 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-07 00:31:56,330 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-07 00:31:56,330 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-07 00:31:56,330 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-07 00:31:56,330 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-07 00:31:56,330 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-07 00:31:56,330 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-07 00:31:56,330 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-07 00:31:56,331 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-07 00:31:56,331 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-07 00:31:56,331 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-07 00:31:56,331 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-07 00:31:56,331 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-07 00:31:56,331 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-07 00:31:56,331 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-07 00:31:56,332 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-07 00:31:56,332 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-07 00:31:56,332 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-07 00:31:56,332 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-07 00:31:56,332 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-07 00:31:56,333 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 00:31:56,333 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-07 00:31:56,333 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-07 00:31:56,333 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 00:31:56,333 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-11-07 00:31:56,334 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-07 00:31:56,334 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-07 00:31:56,334 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-07 00:31:56,335 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-07 00:31:56,335 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-07 00:31:56,336 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-07 00:31:56,336 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-07 00:31:56,336 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-07 00:31:56,336 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-07 00:31:56,336 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-07 00:31:56,337 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-07 00:31:56,337 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-07 00:31:56,337 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-07 00:31:56,338 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-07 00:31:56,338 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-07 00:31:56,338 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-07 00:31:56,338 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-07 00:31:56,339 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-07 00:31:56,339 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-07 00:31:56,340 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-07 00:31:56,340 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-07 00:31:56,340 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-07 00:31:56,340 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-07 00:31:56,341 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-07 00:31:56,341 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-07 00:31:56,341 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-07 00:31:56,341 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-07 00:31:56,341 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-07 00:31:56,341 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-07 00:31:56,341 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-07 00:31:56,342 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-07 00:31:56,342 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-07 00:31:56,342 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-07 00:31:56,342 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-07 00:31:56,342 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-07 00:31:56,342 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-07 00:31:56,342 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-07 00:31:56,343 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-07 00:31:56,343 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-07 00:31:56,343 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-07 00:31:56,343 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-07 00:31:56,343 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-07 00:31:56,343 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-07 00:31:56,343 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-07 00:31:56,344 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-07 00:31:56,344 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-07 00:31:56,344 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-07 00:31:56,344 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-07 00:31:56,344 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-11-07 00:31:56,344 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2019-11-07 00:31:56,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 00:31:56,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 00:31:56,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 00:31:56,345 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_create [2019-11-07 00:31:56,345 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_destroy [2019-11-07 00:31:56,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 00:31:56,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 00:31:56,346 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_insert [2019-11-07 00:31:56,346 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 00:31:56,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 00:31:56,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-07 00:31:56,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 00:31:56,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 00:31:56,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 00:31:56,757 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-11-07 00:31:56,989 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 00:31:56,989 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-07 00:31:56,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:31:56 BoogieIcfgContainer [2019-11-07 00:31:56,991 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 00:31:56,992 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 00:31:56,992 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 00:31:56,996 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 00:31:56,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:31:55" (1/3) ... [2019-11-07 00:31:56,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@472ca25c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:31:56, skipping insertion in model container [2019-11-07 00:31:56,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:56" (2/3) ... [2019-11-07 00:31:56,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@472ca25c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:31:56, skipping insertion in model container [2019-11-07 00:31:56,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:31:56" (3/3) ... [2019-11-07 00:31:57,000 INFO L109 eAbstractionObserver]: Analyzing ICFG sll2c_insert_unequal.i [2019-11-07 00:31:57,010 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 00:31:57,019 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 00:31:57,032 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 00:31:57,059 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 00:31:57,059 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 00:31:57,060 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 00:31:57,060 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 00:31:57,060 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 00:31:57,060 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 00:31:57,061 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 00:31:57,061 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 00:31:57,081 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states. [2019-11-07 00:31:57,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-11-07 00:31:57,090 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:31:57,091 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 00:31:57,093 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:31:57,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:31:57,099 INFO L82 PathProgramCache]: Analyzing trace with hash -1696262195, now seen corresponding path program 1 times [2019-11-07 00:31:57,111 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:31:57,111 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448554210] [2019-11-07 00:31:57,111 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:31:57,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:31:57,357 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 00:31:57,358 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448554210] [2019-11-07 00:31:57,359 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:31:57,359 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 00:31:57,360 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576744860] [2019-11-07 00:31:57,365 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 00:31:57,367 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:31:57,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 00:31:57,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 00:31:57,383 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 2 states. [2019-11-07 00:31:57,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:31:57,410 INFO L93 Difference]: Finished difference Result 109 states and 145 transitions. [2019-11-07 00:31:57,411 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 00:31:57,412 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 37 [2019-11-07 00:31:57,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:31:57,422 INFO L225 Difference]: With dead ends: 109 [2019-11-07 00:31:57,423 INFO L226 Difference]: Without dead ends: 46 [2019-11-07 00:31:57,427 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 00:31:57,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-11-07 00:31:57,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2019-11-07 00:31:57,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2019-11-07 00:31:57,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 56 transitions. [2019-11-07 00:31:57,475 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 56 transitions. Word has length 37 [2019-11-07 00:31:57,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:31:57,477 INFO L462 AbstractCegarLoop]: Abstraction has 46 states and 56 transitions. [2019-11-07 00:31:57,477 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 00:31:57,478 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 56 transitions. [2019-11-07 00:31:57,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-11-07 00:31:57,480 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:31:57,480 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 00:31:57,481 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:31:57,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:31:57,481 INFO L82 PathProgramCache]: Analyzing trace with hash -734133097, now seen corresponding path program 1 times [2019-11-07 00:31:57,481 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:31:57,482 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143163789] [2019-11-07 00:31:57,482 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:31:57,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:31:57,685 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 00:31:57,685 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143163789] [2019-11-07 00:31:57,685 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:31:57,686 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:31:57,686 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577766693] [2019-11-07 00:31:57,689 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:31:57,690 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:31:57,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:31:57,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:31:57,690 INFO L87 Difference]: Start difference. First operand 46 states and 56 transitions. Second operand 3 states. [2019-11-07 00:31:57,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:31:57,727 INFO L93 Difference]: Finished difference Result 66 states and 82 transitions. [2019-11-07 00:31:57,728 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:31:57,728 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2019-11-07 00:31:57,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:31:57,732 INFO L225 Difference]: With dead ends: 66 [2019-11-07 00:31:57,733 INFO L226 Difference]: Without dead ends: 50 [2019-11-07 00:31:57,734 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 00:31:57,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2019-11-07 00:31:57,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 48. [2019-11-07 00:31:57,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2019-11-07 00:31:57,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 59 transitions. [2019-11-07 00:31:57,753 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 59 transitions. Word has length 37 [2019-11-07 00:31:57,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:31:57,755 INFO L462 AbstractCegarLoop]: Abstraction has 48 states and 59 transitions. [2019-11-07 00:31:57,756 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:31:57,756 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 59 transitions. [2019-11-07 00:31:57,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-07 00:31:57,759 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:31:57,759 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 00:31:57,760 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:31:57,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:31:57,760 INFO L82 PathProgramCache]: Analyzing trace with hash -2047030169, now seen corresponding path program 1 times [2019-11-07 00:31:57,761 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:31:57,761 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893428060] [2019-11-07 00:31:57,761 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:31:57,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:31:57,916 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 00:31:57,916 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893428060] [2019-11-07 00:31:57,917 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:31:57,917 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 00:31:57,917 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049546801] [2019-11-07 00:31:57,918 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 00:31:57,919 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:31:57,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 00:31:57,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 00:31:57,920 INFO L87 Difference]: Start difference. First operand 48 states and 59 transitions. Second operand 5 states. [2019-11-07 00:31:57,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:31:57,990 INFO L93 Difference]: Finished difference Result 86 states and 107 transitions. [2019-11-07 00:31:57,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-07 00:31:57,991 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 38 [2019-11-07 00:31:57,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:31:57,992 INFO L225 Difference]: With dead ends: 86 [2019-11-07 00:31:57,992 INFO L226 Difference]: Without dead ends: 51 [2019-11-07 00:31:57,993 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 00:31:57,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2019-11-07 00:31:57,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 49. [2019-11-07 00:31:57,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2019-11-07 00:31:58,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 60 transitions. [2019-11-07 00:31:58,001 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 60 transitions. Word has length 38 [2019-11-07 00:31:58,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:31:58,001 INFO L462 AbstractCegarLoop]: Abstraction has 49 states and 60 transitions. [2019-11-07 00:31:58,001 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 00:31:58,002 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 60 transitions. [2019-11-07 00:31:58,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-11-07 00:31:58,003 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:31:58,003 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] [2019-11-07 00:31:58,004 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:31:58,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:31:58,004 INFO L82 PathProgramCache]: Analyzing trace with hash 651664031, now seen corresponding path program 1 times [2019-11-07 00:31:58,004 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:31:58,004 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253500090] [2019-11-07 00:31:58,005 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:31:58,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:31:59,227 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 37 [2019-11-07 00:31:59,610 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2019-11-07 00:31:59,807 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2019-11-07 00:32:00,105 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:32:00,105 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253500090] [2019-11-07 00:32:00,105 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1968142420] [2019-11-07 00:32:00,105 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 00:32:00,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:32:00,359 INFO L256 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 125 conjunts are in the unsatisfiable core [2019-11-07 00:32:00,371 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 00:32:00,499 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 00:32:00,500 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-07 00:32:00,505 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:32:00,506 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-07 00:32:00,506 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-07 00:32:00,594 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 00:32:00,595 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-07 00:32:00,605 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:32:00,606 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-07 00:32:00,606 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:27 [2019-11-07 00:32:00,694 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:32:00,694 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 00:32:00,695 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-07 00:32:00,728 INFO L567 ElimStorePlain]: treesize reduction 14, result has 73.6 percent of original size [2019-11-07 00:32:00,729 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-07 00:32:00,729 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:41, output treesize:39 [2019-11-07 00:32:00,814 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 00:32:00,814 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-07 00:32:00,829 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:32:00,829 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-07 00:32:00,830 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:50, output treesize:35 [2019-11-07 00:32:00,907 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 30 treesize of output 14 [2019-11-07 00:32:00,907 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-07 00:32:00,920 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:32:00,921 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-07 00:32:00,922 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:50, output treesize:35 [2019-11-07 00:32:01,241 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 15 treesize of output 7 [2019-11-07 00:32:01,242 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-07 00:32:01,265 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:32:01,275 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 7 treesize of output 3 [2019-11-07 00:32:01,275 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-07 00:32:01,302 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:32:01,318 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 38 treesize of output 22 [2019-11-07 00:32:01,319 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 00:32:01,344 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:32:01,348 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-11-07 00:32:01,349 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-11-07 00:32:01,367 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:32:01,368 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 00:32:01,369 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:74, output treesize:13 [2019-11-07 00:32:01,466 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 00:32:01,487 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:32:01,488 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2019-11-07 00:32:01,489 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:83, output treesize:71 [2019-11-07 00:32:09,614 WARN L191 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 42 [2019-11-07 00:32:13,744 WARN L191 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 48 [2019-11-07 00:32:14,053 INFO L392 ElimStorePlain]: Different costs {2=[|v_#memory_int_38|], 10=[|v_#memory_$Pointer$.offset_44|, |v_#memory_$Pointer$.base_44|]} [2019-11-07 00:32:14,059 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 00:32:14,134 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:32:14,141 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 00:32:14,230 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:32:14,235 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 00:32:14,317 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:32:14,318 INFO L496 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 3 dim-2 vars, End of recursive call: 10 dim-0 vars, and 1 xjuncts. [2019-11-07 00:32:14,319 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 10 variables, input treesize:233, output treesize:558 [2019-11-07 00:32:34,344 WARN L191 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2019-11-07 00:32:34,415 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:32:34,416 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 20 treesize of output 30 [2019-11-07 00:32:34,417 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-07 00:32:34,639 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-11-07 00:32:34,639 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:32:34,642 INFO L392 ElimStorePlain]: Different costs {8=[|v_#memory_int_BEFORE_CALL_4|], 20=[|v_#memory_$Pointer$.offset_BEFORE_CALL_4|, |v_old(#memory_$Pointer$.base)_AFTER_CALL_5|]} [2019-11-07 00:32:34,656 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-07 00:32:34,659 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-07 00:32:34,664 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-07 00:32:34,721 INFO L341 Elim1Store]: treesize reduction 36, result has 42.9 percent of original size [2019-11-07 00:32:34,722 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 208 treesize of output 85 [2019-11-07 00:32:34,724 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-07 00:32:34,873 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2019-11-07 00:32:34,874 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:32:34,878 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-07 00:32:34,888 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-07 00:32:34,889 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-07 00:32:35,122 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2019-11-07 00:32:35,123 INFO L341 Elim1Store]: treesize reduction 78, result has 77.5 percent of original size [2019-11-07 00:32:35,124 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 346 treesize of output 453 [2019-11-07 00:32:35,125 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-07 00:32:35,441 WARN L191 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 81 [2019-11-07 00:32:35,442 INFO L567 ElimStorePlain]: treesize reduction 211, result has 60.6 percent of original size [2019-11-07 00:32:35,446 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-07 00:32:35,452 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-07 00:32:35,457 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-07 00:32:35,624 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 52 [2019-11-07 00:32:35,625 INFO L341 Elim1Store]: treesize reduction 44, result has 74.0 percent of original size [2019-11-07 00:32:35,625 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 165 treesize of output 176 [2019-11-07 00:32:35,627 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-07 00:32:35,628 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-07 00:32:35,629 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 00:32:35,633 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 00:32:35,635 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-11-07 00:32:36,001 WARN L191 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 83 [2019-11-07 00:32:36,001 INFO L567 ElimStorePlain]: treesize reduction 546, result has 36.7 percent of original size [2019-11-07 00:32:36,003 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 00:32:36,005 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 00:32:36,005 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 00:32:36,007 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 00:32:36,009 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 00:32:36,010 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 00:32:36,012 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 00:32:36,012 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 00:32:36,014 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 00:32:36,014 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 00:32:36,018 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 00:32:36,019 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 00:32:36,020 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 00:32:36,021 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 00:32:36,022 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 00:32:36,023 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 00:32:36,024 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 00:32:36,026 INFO L496 ElimStorePlain]: Start of recursive call 1: 11 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-07 00:32:36,026 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 15 variables, input treesize:624, output treesize:680 [2019-11-07 00:32:36,256 INFO L392 ElimStorePlain]: Different costs {0=[|#memory_$Pointer$.offset|], 1=[|#memory_$Pointer$.base|]} [2019-11-07 00:32:36,262 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 15 treesize of output 7 [2019-11-07 00:32:36,262 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-07 00:32:36,293 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:32:36,299 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:32:36,300 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 68 treesize of output 43 [2019-11-07 00:32:36,301 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 00:32:36,302 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-07 00:32:36,322 INFO L567 ElimStorePlain]: treesize reduction 4, result has 86.7 percent of original size [2019-11-07 00:32:36,323 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-07 00:32:36,323 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:85, output treesize:21 [2019-11-07 00:32:36,390 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 15 treesize of output 7 [2019-11-07 00:32:36,390 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-07 00:32:36,395 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:32:36,395 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-07 00:32:36,396 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:7 [2019-11-07 00:32:36,417 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:32:36,418 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 00:32:37,146 WARN L191 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2019-11-07 00:32:37,347 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-11-07 00:32:37,698 WARN L191 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-11-07 00:32:38,008 WARN L191 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2019-11-07 00:32:38,023 INFO L392 ElimStorePlain]: Different costs {2=[|v_#memory_int_61|, |v_#memory_int_63|], 4=[|v_#memory_int_62|], 8=[|v_#memory_$Pointer$.base_57|, |v_#memory_$Pointer$.offset_57|]} [2019-11-07 00:32:38,028 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 00:32:38,106 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:32:38,110 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 00:32:38,162 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:32:38,166 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 00:32:38,210 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:32:38,213 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 00:32:38,270 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:32:38,273 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 00:32:38,312 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 00:32:38,314 INFO L496 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 5 dim-2 vars, End of recursive call: 11 dim-0 vars, and 1 xjuncts. [2019-11-07 00:32:38,314 INFO L221 ElimStorePlain]: Needed 6 recursive calls to eliminate 11 variables, input treesize:258, output treesize:562