java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/ldv-sets/test_add-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 02:56:31,260 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 02:56:31,262 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 02:56:31,280 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 02:56:31,280 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 02:56:31,282 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 02:56:31,283 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 02:56:31,285 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 02:56:31,286 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 02:56:31,287 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 02:56:31,288 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 02:56:31,289 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 02:56:31,289 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 02:56:31,290 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 02:56:31,291 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 02:56:31,292 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 02:56:31,293 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 02:56:31,295 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 02:56:31,296 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 02:56:31,298 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 02:56:31,300 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 02:56:31,301 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 02:56:31,302 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 02:56:31,303 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 02:56:31,305 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 02:56:31,305 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 02:56:31,306 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 02:56:31,306 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 02:56:31,307 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 02:56:31,308 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 02:56:31,308 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 02:56:31,309 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 02:56:31,310 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 02:56:31,311 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 02:56:31,312 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 02:56:31,312 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 02:56:31,312 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 02:56:31,313 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 02:56:31,313 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 02:56:31,314 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 02:56:31,315 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 02:56:31,317 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 02:56:31,337 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 02:56:31,337 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 02:56:31,339 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 02:56:31,339 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 02:56:31,339 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 02:56:31,340 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 02:56:31,340 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 02:56:31,340 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 02:56:31,340 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 02:56:31,340 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 02:56:31,341 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 02:56:31,342 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 02:56:31,342 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 02:56:31,342 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 02:56:31,342 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 02:56:31,343 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 02:56:31,343 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 02:56:31,343 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 02:56:31,343 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 02:56:31,343 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 02:56:31,344 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 02:56:31,344 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 02:56:31,344 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 02:56:31,344 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 02:56:31,345 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 02:56:31,345 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 02:56:31,345 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 02:56:31,345 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 02:56:31,345 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-15 02:56:31,602 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 02:56:31,614 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 02:56:31,618 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 02:56:31,619 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 02:56:31,619 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 02:56:31,620 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-sets/test_add-2.i [2019-10-15 02:56:31,693 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a2abd39b/88539fee8a894d4590a3d8fda8aafd80/FLAG65d4d4baf [2019-10-15 02:56:32,238 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 02:56:32,239 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-sets/test_add-2.i [2019-10-15 02:56:32,253 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a2abd39b/88539fee8a894d4590a3d8fda8aafd80/FLAG65d4d4baf [2019-10-15 02:56:32,521 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a2abd39b/88539fee8a894d4590a3d8fda8aafd80 [2019-10-15 02:56:32,531 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 02:56:32,532 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 02:56:32,533 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 02:56:32,533 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 02:56:32,536 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 02:56:32,537 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:56:32" (1/1) ... [2019-10-15 02:56:32,540 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3058475 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:56:32, skipping insertion in model container [2019-10-15 02:56:32,540 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:56:32" (1/1) ... [2019-10-15 02:56:32,547 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 02:56:32,601 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 02:56:33,057 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 02:56:33,071 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 02:56:33,141 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 02:56:33,203 INFO L192 MainTranslator]: Completed translation [2019-10-15 02:56:33,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:56:33 WrapperNode [2019-10-15 02:56:33,204 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 02:56:33,205 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 02:56:33,205 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 02:56:33,205 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 02:56:33,218 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:56:33" (1/1) ... [2019-10-15 02:56:33,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:56:33" (1/1) ... [2019-10-15 02:56:33,236 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:56:33" (1/1) ... [2019-10-15 02:56:33,237 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:56:33" (1/1) ... [2019-10-15 02:56:33,259 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:56:33" (1/1) ... [2019-10-15 02:56:33,264 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:56:33" (1/1) ... [2019-10-15 02:56:33,269 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:56:33" (1/1) ... [2019-10-15 02:56:33,281 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 02:56:33,282 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 02:56:33,282 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 02:56:33,282 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 02:56:33,283 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:56:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 02:56:33,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 02:56:33,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 02:56:33,333 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-15 02:56:33,333 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-15 02:56:33,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-15 02:56:33,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2019-10-15 02:56:33,333 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-10-15 02:56:33,334 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-10-15 02:56:33,334 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-10-15 02:56:33,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-10-15 02:56:33,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-10-15 02:56:33,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-10-15 02:56:33,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_empty [2019-10-15 02:56:33,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_set [2019-10-15 02:56:33,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2019-10-15 02:56:33,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_del [2019-10-15 02:56:33,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2019-10-15 02:56:33,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_empty [2019-10-15 02:56:33,335 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2019-10-15 02:56:33,336 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 02:56:33,336 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-15 02:56:33,336 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-15 02:56:33,336 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-15 02:56:33,336 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-15 02:56:33,336 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-15 02:56:33,337 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-15 02:56:33,337 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-15 02:56:33,337 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-15 02:56:33,337 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-15 02:56:33,337 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-15 02:56:33,337 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-15 02:56:33,338 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-15 02:56:33,338 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-15 02:56:33,338 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-15 02:56:33,338 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-15 02:56:33,338 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-15 02:56:33,338 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-15 02:56:33,339 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-15 02:56:33,339 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-15 02:56:33,339 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-15 02:56:33,339 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-15 02:56:33,339 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-15 02:56:33,339 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-15 02:56:33,339 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-15 02:56:33,340 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-15 02:56:33,340 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-15 02:56:33,340 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-15 02:56:33,340 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-15 02:56:33,340 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-15 02:56:33,340 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-15 02:56:33,341 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-15 02:56:33,341 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-15 02:56:33,341 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-15 02:56:33,341 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-15 02:56:33,341 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-15 02:56:33,341 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-15 02:56:33,342 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-15 02:56:33,342 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-15 02:56:33,342 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-15 02:56:33,342 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-15 02:56:33,342 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-15 02:56:33,342 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-15 02:56:33,342 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-15 02:56:33,343 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-15 02:56:33,343 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-15 02:56:33,343 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-15 02:56:33,343 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-15 02:56:33,343 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-15 02:56:33,344 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-15 02:56:33,344 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-15 02:56:33,344 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-15 02:56:33,344 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-15 02:56:33,344 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 02:56:33,344 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-15 02:56:33,344 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-15 02:56:33,345 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 02:56:33,345 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-15 02:56:33,345 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-15 02:56:33,345 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-15 02:56:33,345 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-15 02:56:33,345 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-15 02:56:33,346 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-15 02:56:33,346 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-15 02:56:33,346 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 02:56:33,346 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-15 02:56:33,346 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-15 02:56:33,346 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-15 02:56:33,347 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-15 02:56:33,347 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-15 02:56:33,347 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-15 02:56:33,347 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-15 02:56:33,347 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-15 02:56:33,347 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-15 02:56:33,347 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-15 02:56:33,348 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-15 02:56:33,348 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-15 02:56:33,348 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-15 02:56:33,348 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-15 02:56:33,348 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-15 02:56:33,348 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-15 02:56:33,348 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-15 02:56:33,349 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-15 02:56:33,349 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-15 02:56:33,349 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-15 02:56:33,349 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-15 02:56:33,349 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-15 02:56:33,349 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-15 02:56:33,350 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-15 02:56:33,350 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-15 02:56:33,350 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-15 02:56:33,350 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-15 02:56:33,350 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-15 02:56:33,350 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-15 02:56:33,350 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-15 02:56:33,351 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-15 02:56:33,351 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-15 02:56:33,351 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-15 02:56:33,351 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-15 02:56:33,351 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-15 02:56:33,351 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-15 02:56:33,351 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-15 02:56:33,352 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-15 02:56:33,352 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 02:56:33,352 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-15 02:56:33,352 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 02:56:33,352 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-15 02:56:33,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-15 02:56:33,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 02:56:33,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2019-10-15 02:56:33,353 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-10-15 02:56:33,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 02:56:33,353 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-10-15 02:56:33,353 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-10-15 02:56:33,354 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-10-15 02:56:33,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 02:56:33,354 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-10-15 02:56:33,354 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-10-15 02:56:33,354 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_empty [2019-10-15 02:56:33,354 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_set [2019-10-15 02:56:33,354 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2019-10-15 02:56:33,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_del [2019-10-15 02:56:33,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2019-10-15 02:56:33,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_empty [2019-10-15 02:56:33,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 02:56:33,355 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 02:56:33,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 02:56:33,356 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2019-10-15 02:56:33,356 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 02:56:33,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 02:56:33,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 02:56:33,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-15 02:56:33,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 02:56:34,173 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 02:56:34,174 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-15 02:56:34,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:56:34 BoogieIcfgContainer [2019-10-15 02:56:34,176 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 02:56:34,177 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 02:56:34,177 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 02:56:34,195 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 02:56:34,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:56:32" (1/3) ... [2019-10-15 02:56:34,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fa0d5ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:56:34, skipping insertion in model container [2019-10-15 02:56:34,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:56:33" (2/3) ... [2019-10-15 02:56:34,197 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fa0d5ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:56:34, skipping insertion in model container [2019-10-15 02:56:34,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:56:34" (3/3) ... [2019-10-15 02:56:34,199 INFO L109 eAbstractionObserver]: Analyzing ICFG test_add-2.i [2019-10-15 02:56:34,208 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 02:56:34,216 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 02:56:34,227 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 02:56:34,251 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 02:56:34,251 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 02:56:34,252 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 02:56:34,252 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 02:56:34,252 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 02:56:34,252 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 02:56:34,252 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 02:56:34,253 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 02:56:34,270 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2019-10-15 02:56:34,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-15 02:56:34,276 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:56:34,277 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:56:34,279 INFO L410 AbstractCegarLoop]: === Iteration 1 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:56:34,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:56:34,284 INFO L82 PathProgramCache]: Analyzing trace with hash 1954843816, now seen corresponding path program 1 times [2019-10-15 02:56:34,293 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:56:34,294 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216033230] [2019-10-15 02:56:34,294 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:56:34,294 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:56:34,295 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:56:34,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:56:34,556 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 02:56:34,557 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216033230] [2019-10-15 02:56:34,558 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1047902394] [2019-10-15 02:56:34,558 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 02:56:34,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:56:34,742 INFO L256 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-15 02:56:34,751 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 02:56:34,778 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 02:56:34,779 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 02:56:34,849 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 02:56:34,850 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 02:56:34,850 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 4 [2019-10-15 02:56:34,851 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144715006] [2019-10-15 02:56:34,857 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 02:56:34,858 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:56:34,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 02:56:34,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 02:56:34,876 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 4 states. [2019-10-15 02:56:34,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:56:34,928 INFO L93 Difference]: Finished difference Result 62 states and 70 transitions. [2019-10-15 02:56:34,929 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 02:56:34,930 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2019-10-15 02:56:34,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:56:34,942 INFO L225 Difference]: With dead ends: 62 [2019-10-15 02:56:34,942 INFO L226 Difference]: Without dead ends: 38 [2019-10-15 02:56:34,948 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 02:56:34,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-10-15 02:56:35,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2019-10-15 02:56:35,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-10-15 02:56:35,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2019-10-15 02:56:35,007 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 25 [2019-10-15 02:56:35,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:56:35,008 INFO L462 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2019-10-15 02:56:35,008 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 02:56:35,009 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2019-10-15 02:56:35,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-15 02:56:35,012 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:56:35,012 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:56:35,216 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 02:56:35,217 INFO L410 AbstractCegarLoop]: === Iteration 2 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:56:35,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:56:35,218 INFO L82 PathProgramCache]: Analyzing trace with hash 1040056514, now seen corresponding path program 1 times [2019-10-15 02:56:35,219 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:56:35,219 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42462536] [2019-10-15 02:56:35,219 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:56:35,219 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:56:35,219 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:56:35,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:56:35,529 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-15 02:56:35,529 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42462536] [2019-10-15 02:56:35,530 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2038448946] [2019-10-15 02:56:35,530 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 02:56:35,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:56:35,694 INFO L256 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 43 conjunts are in the unsatisfiable core [2019-10-15 02:56:35,698 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 02:56:35,750 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 [2019-10-15 02:56:35,751 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 02:56:35,762 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 02:56:35,765 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 [2019-10-15 02:56:35,766 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-15 02:56:35,772 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 02:56:35,772 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-15 02:56:35,773 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:10 [2019-10-15 02:56:35,923 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 02:56:35,923 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 02:56:36,271 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 02:56:36,280 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 8 treesize of output 4 [2019-10-15 02:56:36,280 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 02:56:36,290 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 02:56:36,294 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 8 treesize of output 4 [2019-10-15 02:56:36,294 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-15 02:56:36,298 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 02:56:36,299 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-15 02:56:36,299 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:33, output treesize:17 [2019-10-15 02:56:36,432 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-15 02:56:36,433 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 02:56:36,433 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8, 8] total 20 [2019-10-15 02:56:36,433 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131716952] [2019-10-15 02:56:36,434 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 02:56:36,434 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:56:36,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 02:56:36,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=308, Unknown=0, NotChecked=0, Total=380 [2019-10-15 02:56:36,436 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand 9 states. [2019-10-15 02:56:36,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:56:36,996 INFO L93 Difference]: Finished difference Result 75 states and 85 transitions. [2019-10-15 02:56:36,997 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-15 02:56:36,997 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 26 [2019-10-15 02:56:36,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:56:36,999 INFO L225 Difference]: With dead ends: 75 [2019-10-15 02:56:36,999 INFO L226 Difference]: Without dead ends: 61 [2019-10-15 02:56:37,001 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=188, Invalid=624, Unknown=0, NotChecked=0, Total=812 [2019-10-15 02:56:37,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2019-10-15 02:56:37,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 39. [2019-10-15 02:56:37,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-10-15 02:56:37,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2019-10-15 02:56:37,012 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 26 [2019-10-15 02:56:37,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:56:37,012 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2019-10-15 02:56:37,012 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 02:56:37,012 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2019-10-15 02:56:37,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-10-15 02:56:37,014 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:56:37,014 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:56:37,217 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 02:56:37,218 INFO L410 AbstractCegarLoop]: === Iteration 3 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:56:37,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:56:37,219 INFO L82 PathProgramCache]: Analyzing trace with hash 1574117224, now seen corresponding path program 1 times [2019-10-15 02:56:37,219 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:56:37,219 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49239015] [2019-10-15 02:56:37,220 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:56:37,220 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:56:37,220 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:56:37,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:56:37,512 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-15 02:56:37,513 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49239015] [2019-10-15 02:56:37,513 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:56:37,513 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-10-15 02:56:37,513 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819300808] [2019-10-15 02:56:37,514 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-15 02:56:37,514 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:56:37,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-15 02:56:37,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2019-10-15 02:56:37,515 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand 15 states. [2019-10-15 02:56:38,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:56:38,166 INFO L93 Difference]: Finished difference Result 55 states and 61 transitions. [2019-10-15 02:56:38,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-10-15 02:56:38,169 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 36 [2019-10-15 02:56:38,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:56:38,171 INFO L225 Difference]: With dead ends: 55 [2019-10-15 02:56:38,171 INFO L226 Difference]: Without dead ends: 49 [2019-10-15 02:56:38,172 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=124, Invalid=746, Unknown=0, NotChecked=0, Total=870 [2019-10-15 02:56:38,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-10-15 02:56:38,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 40. [2019-10-15 02:56:38,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-10-15 02:56:38,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2019-10-15 02:56:38,187 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 36 [2019-10-15 02:56:38,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:56:38,189 INFO L462 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2019-10-15 02:56:38,189 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-15 02:56:38,189 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2019-10-15 02:56:38,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-10-15 02:56:38,191 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:56:38,192 INFO L380 BasicCegarLoop]: trace histogram [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, 1, 1, 1] [2019-10-15 02:56:38,192 INFO L410 AbstractCegarLoop]: === Iteration 4 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:56:38,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:56:38,193 INFO L82 PathProgramCache]: Analyzing trace with hash 645053328, now seen corresponding path program 1 times [2019-10-15 02:56:38,193 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:56:38,193 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029185233] [2019-10-15 02:56:38,193 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:56:38,193 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:56:38,193 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:56:38,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:56:38,279 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 02:56:38,279 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029185233] [2019-10-15 02:56:38,279 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:56:38,279 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 02:56:38,280 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918453322] [2019-10-15 02:56:38,280 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 02:56:38,280 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:56:38,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 02:56:38,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 02:56:38,281 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand 4 states. [2019-10-15 02:56:38,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:56:38,291 INFO L93 Difference]: Finished difference Result 48 states and 50 transitions. [2019-10-15 02:56:38,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 02:56:38,292 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37 [2019-10-15 02:56:38,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:56:38,293 INFO L225 Difference]: With dead ends: 48 [2019-10-15 02:56:38,293 INFO L226 Difference]: Without dead ends: 42 [2019-10-15 02:56:38,294 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 02:56:38,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-10-15 02:56:38,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2019-10-15 02:56:38,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-10-15 02:56:38,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 42 transitions. [2019-10-15 02:56:38,301 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 42 transitions. Word has length 37 [2019-10-15 02:56:38,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:56:38,302 INFO L462 AbstractCegarLoop]: Abstraction has 40 states and 42 transitions. [2019-10-15 02:56:38,302 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 02:56:38,302 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 42 transitions. [2019-10-15 02:56:38,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-10-15 02:56:38,303 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:56:38,303 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:56:38,303 INFO L410 AbstractCegarLoop]: === Iteration 5 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:56:38,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:56:38,304 INFO L82 PathProgramCache]: Analyzing trace with hash 1681680497, now seen corresponding path program 1 times [2019-10-15 02:56:38,304 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:56:38,304 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742144909] [2019-10-15 02:56:38,304 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:56:38,304 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:56:38,305 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:56:38,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:56:38,735 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2019-10-15 02:56:39,196 WARN L191 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 33 [2019-10-15 02:56:39,387 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2019-10-15 02:56:39,518 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-15 02:56:39,518 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742144909] [2019-10-15 02:56:39,519 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [269237671] [2019-10-15 02:56:39,519 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 02:56:39,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:56:39,667 INFO L256 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 102 conjunts are in the unsatisfiable core [2019-10-15 02:56:39,675 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 02:56:39,851 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 11 treesize of output 7 [2019-10-15 02:56:39,852 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 02:56:39,877 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 02:56:39,878 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-15 02:56:39,878 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:34, output treesize:30 [2019-10-15 02:56:40,037 INFO L392 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.offset_71|, |v_#memory_$Pointer$.base_71|], 2=[|v_#memory_int_66|, |v_#memory_int_67|, |v_#memory_int_65|]} [2019-10-15 02:56:40,064 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-15 02:56:40,253 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 39 [2019-10-15 02:56:40,254 INFO L341 Elim1Store]: treesize reduction 100, result has 50.2 percent of original size [2019-10-15 02:56:40,255 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 3 case distinctions, treesize of input 77 treesize of output 108 [2019-10-15 02:56:40,256 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 02:56:40,602 WARN L191 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 84 [2019-10-15 02:56:40,603 INFO L567 ElimStorePlain]: treesize reduction 36, result has 86.2 percent of original size [2019-10-15 02:56:40,616 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-15 02:56:40,727 INFO L341 Elim1Store]: treesize reduction 139, result has 30.8 percent of original size [2019-10-15 02:56:40,728 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 3 case distinctions, treesize of input 77 treesize of output 69 [2019-10-15 02:56:40,729 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-15 02:56:40,999 WARN L191 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 85 [2019-10-15 02:56:41,000 INFO L567 ElimStorePlain]: treesize reduction 16, result has 92.6 percent of original size [2019-10-15 02:56:41,006 INFO L496 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-15 02:56:41,119 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2019-10-15 02:56:41,120 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 02:56:41,126 INFO L496 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-15 02:56:41,241 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2019-10-15 02:56:41,242 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 02:56:41,246 INFO L496 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-15 02:56:41,345 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 02:56:41,346 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 02:56:41,348 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:56:41,349 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:56:41,350 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:56:41,352 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:56:41,356 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 5 dim-2 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2019-10-15 02:56:41,357 INFO L221 ElimStorePlain]: Needed 6 recursive calls to eliminate 7 variables, input treesize:231, output treesize:213 [2019-10-15 02:56:41,357 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 02:56:41,358 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:56:41,358 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:56:41,359 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:56:41,360 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:56:41,524 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:56:41,525 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:56:41,525 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 02:56:41,526 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:56:41,529 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 02:56:41,529 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:56:41,530 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms