java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/list-simple/dll2c_insert_unequal.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 13:18:53,114 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 13:18:53,117 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 13:18:53,132 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 13:18:53,133 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 13:18:53,136 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 13:18:53,138 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 13:18:53,149 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 13:18:53,151 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 13:18:53,153 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 13:18:53,155 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 13:18:53,156 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 13:18:53,156 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 13:18:53,159 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 13:18:53,161 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 13:18:53,164 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 13:18:53,167 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 13:18:53,170 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 13:18:53,174 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 13:18:53,179 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 13:18:53,184 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 13:18:53,187 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 13:18:53,190 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 13:18:53,191 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 13:18:53,195 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 13:18:53,196 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 13:18:53,196 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 13:18:53,198 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 13:18:53,199 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 13:18:53,201 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 13:18:53,201 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 13:18:53,202 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 13:18:53,203 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 13:18:53,204 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 13:18:53,207 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 13:18:53,207 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 13:18:53,208 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 13:18:53,208 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 13:18:53,208 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 13:18:53,209 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 13:18:53,211 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 13:18:53,212 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 [2019-10-07 13:18:53,248 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 13:18:53,248 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 13:18:53,253 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 13:18:53,253 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 13:18:53,253 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 13:18:53,254 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 13:18:53,254 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 13:18:53,254 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 13:18:53,254 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 13:18:53,255 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 13:18:53,255 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 13:18:53,255 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 13:18:53,260 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 13:18:53,260 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 13:18:53,261 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 13:18:53,261 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 13:18:53,261 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 13:18:53,261 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 13:18:53,261 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 13:18:53,262 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 13:18:53,262 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 13:18:53,262 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 13:18:53,263 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 13:18:53,263 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 13:18:53,263 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 13:18:53,263 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 13:18:53,263 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 13:18:53,264 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 13:18:53,264 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 [2019-10-07 13:18:53,580 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 13:18:53,595 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 13:18:53,600 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 13:18:53,601 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 13:18:53,602 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 13:18:53,602 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/dll2c_insert_unequal.i [2019-10-07 13:18:53,685 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da0a4364a/42529db8f0294b6485492c2bb8fa78c7/FLAG4383a4bf3 [2019-10-07 13:18:54,272 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 13:18:54,273 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/dll2c_insert_unequal.i [2019-10-07 13:18:54,287 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da0a4364a/42529db8f0294b6485492c2bb8fa78c7/FLAG4383a4bf3 [2019-10-07 13:18:54,523 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da0a4364a/42529db8f0294b6485492c2bb8fa78c7 [2019-10-07 13:18:54,534 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 13:18:54,536 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 13:18:54,537 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 13:18:54,537 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 13:18:54,541 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 13:18:54,542 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 01:18:54" (1/1) ... [2019-10-07 13:18:54,545 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54c6c6fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:18:54, skipping insertion in model container [2019-10-07 13:18:54,546 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 01:18:54" (1/1) ... [2019-10-07 13:18:54,554 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 13:18:54,611 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 13:18:55,147 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 13:18:55,159 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 13:18:55,218 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 13:18:55,278 INFO L192 MainTranslator]: Completed translation [2019-10-07 13:18:55,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:18:55 WrapperNode [2019-10-07 13:18:55,279 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 13:18:55,280 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 13:18:55,280 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 13:18:55,280 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 13:18:55,295 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:18:55" (1/1) ... [2019-10-07 13:18:55,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:18:55" (1/1) ... [2019-10-07 13:18:55,321 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:18:55" (1/1) ... [2019-10-07 13:18:55,321 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:18:55" (1/1) ... [2019-10-07 13:18:55,352 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:18:55" (1/1) ... [2019-10-07 13:18:55,363 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:18:55" (1/1) ... [2019-10-07 13:18:55,367 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:18:55" (1/1) ... [2019-10-07 13:18:55,375 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 13:18:55,376 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 13:18:55,376 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 13:18:55,376 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 13:18:55,377 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:18:55" (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 [2019-10-07 13:18:55,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 13:18:55,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 13:18:55,450 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-07 13:18:55,450 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-07 13:18:55,450 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-10-07 13:18:55,450 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2019-10-07 13:18:55,450 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_create [2019-10-07 13:18:55,451 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_destroy [2019-10-07 13:18:55,451 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_insert [2019-10-07 13:18:55,451 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 13:18:55,451 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 13:18:55,451 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-07 13:18:55,452 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-07 13:18:55,452 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-07 13:18:55,452 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-07 13:18:55,452 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-07 13:18:55,452 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-07 13:18:55,453 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-07 13:18:55,453 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-07 13:18:55,453 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-07 13:18:55,453 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-07 13:18:55,453 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-07 13:18:55,454 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-07 13:18:55,454 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-07 13:18:55,454 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-07 13:18:55,454 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-07 13:18:55,455 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-07 13:18:55,455 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-07 13:18:55,455 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-07 13:18:55,455 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-07 13:18:55,455 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-07 13:18:55,455 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-07 13:18:55,456 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-07 13:18:55,456 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-07 13:18:55,456 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-07 13:18:55,456 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-07 13:18:55,456 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-07 13:18:55,457 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-07 13:18:55,457 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-07 13:18:55,457 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-07 13:18:55,457 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-07 13:18:55,457 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-07 13:18:55,457 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-07 13:18:55,457 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-07 13:18:55,457 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-07 13:18:55,458 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-07 13:18:55,458 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-07 13:18:55,458 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-07 13:18:55,458 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-07 13:18:55,458 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-07 13:18:55,458 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-07 13:18:55,458 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-07 13:18:55,458 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-07 13:18:55,459 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-07 13:18:55,459 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-07 13:18:55,459 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-07 13:18:55,459 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-07 13:18:55,459 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-07 13:18:55,459 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-07 13:18:55,460 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-07 13:18:55,460 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-07 13:18:55,460 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-07 13:18:55,460 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-07 13:18:55,460 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 13:18:55,460 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-07 13:18:55,461 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-07 13:18:55,461 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 13:18:55,461 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-07 13:18:55,461 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-07 13:18:55,461 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-07 13:18:55,461 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-07 13:18:55,461 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-07 13:18:55,462 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-07 13:18:55,462 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-07 13:18:55,462 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-07 13:18:55,462 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-07 13:18:55,462 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-07 13:18:55,462 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-07 13:18:55,462 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-07 13:18:55,463 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-07 13:18:55,463 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-07 13:18:55,463 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-07 13:18:55,463 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-07 13:18:55,463 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-07 13:18:55,463 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-07 13:18:55,463 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-07 13:18:55,464 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-07 13:18:55,464 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-07 13:18:55,464 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-07 13:18:55,464 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-07 13:18:55,464 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-07 13:18:55,464 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-07 13:18:55,465 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-07 13:18:55,465 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-07 13:18:55,465 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-07 13:18:55,465 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-07 13:18:55,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-07 13:18:55,465 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-07 13:18:55,466 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-07 13:18:55,466 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-07 13:18:55,466 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-07 13:18:55,466 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-07 13:18:55,466 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-07 13:18:55,466 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-07 13:18:55,466 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-07 13:18:55,467 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-07 13:18:55,467 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-07 13:18:55,467 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-07 13:18:55,467 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-07 13:18:55,467 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-07 13:18:55,467 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-07 13:18:55,467 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-07 13:18:55,467 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-07 13:18:55,467 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-07 13:18:55,467 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-07 13:18:55,468 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-07 13:18:55,468 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-10-07 13:18:55,468 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2019-10-07 13:18:55,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 13:18:55,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 13:18:55,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 13:18:55,468 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_create [2019-10-07 13:18:55,469 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_destroy [2019-10-07 13:18:55,469 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 13:18:55,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 13:18:55,469 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_insert [2019-10-07 13:18:55,469 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 13:18:55,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 13:18:55,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-07 13:18:55,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 13:18:55,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 13:18:55,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 13:18:56,025 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-10-07 13:18:57,961 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 13:18:57,962 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-07 13:18:57,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 01:18:57 BoogieIcfgContainer [2019-10-07 13:18:57,964 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 13:18:57,965 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 13:18:57,965 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 13:18:57,969 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 13:18:57,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 01:18:54" (1/3) ... [2019-10-07 13:18:57,970 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f29052a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 01:18:57, skipping insertion in model container [2019-10-07 13:18:57,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:18:55" (2/3) ... [2019-10-07 13:18:57,971 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f29052a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 01:18:57, skipping insertion in model container [2019-10-07 13:18:57,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 01:18:57" (3/3) ... [2019-10-07 13:18:57,973 INFO L109 eAbstractionObserver]: Analyzing ICFG dll2c_insert_unequal.i [2019-10-07 13:18:57,983 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 13:18:57,992 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 13:18:58,004 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 13:18:58,031 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 13:18:58,031 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 13:18:58,031 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 13:18:58,032 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 13:18:58,032 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 13:18:58,032 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 13:18:58,032 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 13:18:58,032 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 13:18:58,052 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2019-10-07 13:18:58,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-07 13:18:58,060 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:18:58,061 INFO L385 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] [2019-10-07 13:18:58,063 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:18:58,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:18:58,070 INFO L82 PathProgramCache]: Analyzing trace with hash -357515414, now seen corresponding path program 1 times [2019-10-07 13:18:58,079 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:18:58,079 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:18:58,079 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:18:58,079 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:18:58,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:18:58,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:18:58,511 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-07 13:18:58,512 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:18:58,513 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:18:58,513 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-07 13:18:58,517 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 13:18:58,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 13:18:58,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2019-10-07 13:18:58,537 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 9 states. [2019-10-07 13:19:00,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:19:00,647 INFO L93 Difference]: Finished difference Result 93 states and 121 transitions. [2019-10-07 13:19:00,649 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 13:19:00,650 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2019-10-07 13:19:00,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:19:00,662 INFO L225 Difference]: With dead ends: 93 [2019-10-07 13:19:00,662 INFO L226 Difference]: Without dead ends: 41 [2019-10-07 13:19:00,667 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2019-10-07 13:19:00,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-10-07 13:19:00,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 37. [2019-10-07 13:19:00,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-10-07 13:19:00,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 45 transitions. [2019-10-07 13:19:00,723 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 45 transitions. Word has length 30 [2019-10-07 13:19:00,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:19:00,724 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 45 transitions. [2019-10-07 13:19:00,724 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 13:19:00,724 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 45 transitions. [2019-10-07 13:19:00,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-10-07 13:19:00,727 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:19:00,727 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 13:19:00,727 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:19:00,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:19:00,728 INFO L82 PathProgramCache]: Analyzing trace with hash 1459971696, now seen corresponding path program 1 times [2019-10-07 13:19:00,728 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:19:00,728 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:19:00,729 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:19:00,729 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:19:00,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:19:00,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:19:00,893 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-07 13:19:00,894 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:19:00,894 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:19:00,895 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-07 13:19:00,897 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-07 13:19:00,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-07 13:19:00,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-07 13:19:00,899 INFO L87 Difference]: Start difference. First operand 37 states and 45 transitions. Second operand 6 states. [2019-10-07 13:19:01,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:19:01,495 INFO L93 Difference]: Finished difference Result 51 states and 64 transitions. [2019-10-07 13:19:01,496 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 13:19:01,496 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2019-10-07 13:19:01,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:19:01,498 INFO L225 Difference]: With dead ends: 51 [2019-10-07 13:19:01,498 INFO L226 Difference]: Without dead ends: 38 [2019-10-07 13:19:01,500 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-10-07 13:19:01,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-10-07 13:19:01,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2019-10-07 13:19:01,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-10-07 13:19:01,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 46 transitions. [2019-10-07 13:19:01,509 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 46 transitions. Word has length 37 [2019-10-07 13:19:01,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:19:01,509 INFO L462 AbstractCegarLoop]: Abstraction has 38 states and 46 transitions. [2019-10-07 13:19:01,510 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-07 13:19:01,510 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2019-10-07 13:19:01,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-10-07 13:19:01,511 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:19:01,511 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 13:19:01,512 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:19:01,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:19:01,512 INFO L82 PathProgramCache]: Analyzing trace with hash 1770269137, now seen corresponding path program 1 times [2019-10-07 13:19:01,512 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:19:01,513 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:19:01,513 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:19:01,513 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:19:01,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:19:01,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:19:03,251 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 39 [2019-10-07 13:19:03,540 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 43 [2019-10-07 13:19:04,278 WARN L191 SmtUtils]: Spent 496.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 87 [2019-10-07 13:19:04,836 WARN L191 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 84 [2019-10-07 13:19:05,177 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:19:05,178 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:19:05,178 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 13:19:05,178 INFO L95 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 [2019-10-07 13:19:05,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:19:05,380 INFO L256 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 134 conjunts are in the unsatisfiable core [2019-10-07 13:19:05,395 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 13:19:05,521 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-10-07 13:19:05,521 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-07 13:19:05,529 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 13:19:05,529 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-07 13:19:05,530 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2019-10-07 13:19:05,786 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2019-10-07 13:19:05,787 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-07 13:19:05,793 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 13:19:05,794 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-07 13:19:05,795 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:3 [2019-10-07 13:19:05,890 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2019-10-07 13:19:05,890 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-07 13:19:05,913 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 13:19:05,914 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-07 13:19:05,915 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:35, output treesize:31 [2019-10-07 13:19:06,033 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 13:19:06,034 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 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 [2019-10-07 13:19:06,035 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-07 13:19:06,086 INFO L567 ElimStorePlain]: treesize reduction 14, result has 76.7 percent of original size [2019-10-07 13:19:06,086 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-07 13:19:06,087 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:48, output treesize:46 [2019-10-07 13:19:06,209 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 13:19:06,211 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 13:19:06,216 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 13:19:06,238 INFO L392 ElimStorePlain]: Different costs {0=[|v_#memory_int_185|, |v_#memory_$Pointer$.base_103|], 2=[|v_#memory_int_173|]} [2019-10-07 13:19:06,256 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 92 [2019-10-07 13:19:06,257 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-07 13:19:06,268 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 96 [2019-10-07 13:19:06,270 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-07 13:19:06,389 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2019-10-07 13:19:06,389 INFO L567 ElimStorePlain]: treesize reduction 94, result has 48.6 percent of original size [2019-10-07 13:19:06,406 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2019-10-07 13:19:06,406 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-10-07 13:19:06,451 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 13:19:06,457 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2019-10-07 13:19:06,457 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-10-07 13:19:06,485 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 13:19:06,487 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-07 13:19:06,487 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:213, output treesize:57 [2019-10-07 13:19:06,656 INFO L392 ElimStorePlain]: Different costs {2=[|v_#memory_int_174|, |v_#memory_int_186|], 10=[|v_#memory_$Pointer$.base_104|]} [2019-10-07 13:19:06,665 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-07 13:19:06,726 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 13:19:06,734 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-07 13:19:06,736 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 22 [2019-10-07 13:19:06,737 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-07 13:19:06,776 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 13:19:06,781 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-07 13:19:06,934 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2019-10-07 13:19:06,935 INFO L341 Elim1Store]: treesize reduction 27, result has 82.7 percent of original size [2019-10-07 13:19:06,935 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 108 treesize of output 169 [2019-10-07 13:19:06,938 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-10-07 13:19:07,051 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 46 [2019-10-07 13:19:07,051 INFO L567 ElimStorePlain]: treesize reduction 177, result has 40.2 percent of original size [2019-10-07 13:19:07,053 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 3 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-10-07 13:19:07,053 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:165, output treesize:106 [2019-10-07 13:19:09,225 WARN L191 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2019-10-07 13:19:09,584 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 7 [2019-10-07 13:19:09,585 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-07 13:19:09,629 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 13:19:09,632 INFO L392 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.offset_BEFORE_CALL_1|, |v_#memory_int_BEFORE_CALL_1|], 11=[|v_#memory_$Pointer$.base_BEFORE_CALL_1|]} [2019-10-07 13:19:09,647 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 119 treesize of output 95 [2019-10-07 13:19:09,648 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-07 13:19:09,708 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 13:19:09,712 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 11 treesize of output 3 [2019-10-07 13:19:09,712 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-10-07 13:19:09,748 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 13:19:09,796 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 13:19:09,796 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 97 treesize of output 83 [2019-10-07 13:19:09,799 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 13:19:09,799 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 13:19:09,800 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 13:19:09,804 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 13:19:09,805 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 13:19:09,806 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 13:19:09,810 INFO L496 ElimStorePlain]: Start of recursive call 5: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-10-07 13:19:09,861 INFO L567 ElimStorePlain]: treesize reduction 36, result has 50.0 percent of original size [2019-10-07 13:19:09,862 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. [2019-10-07 13:19:09,862 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:188, output treesize:13 [2019-10-07 13:19:10,013 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-07 13:19:10,047 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 13:19:10,051 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-07 13:19:10,076 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 13:19:10,078 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2019-10-07 13:19:10,078 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:110, output treesize:84 [2019-10-07 13:19:18,209 WARN L191 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 46 [2019-10-07 13:19:22,356 WARN L191 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 52 [2019-10-07 13:19:24,740 WARN L191 SmtUtils]: Spent 2.05 s on a formula simplification that was a NOOP. DAG size: 64 [2019-10-07 13:19:24,748 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 13:19:24,750 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 13:19:24,755 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 13:19:24,759 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 13:19:24,765 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 13:19:24,814 INFO L392 ElimStorePlain]: Different costs {2=[|v_#memory_int_183|, |v_#memory_int_184|, v_prenex_10, |v_#memory_int_177|, |v_#memory_int_178|, |v_#memory_int_179|, |v_#memory_int_180|, |v_#memory_int_181|, |v_#memory_int_182|], 14=[v_prenex_3, v_prenex_6], 18=[|v_#memory_$Pointer$.offset_105|], 30=[|v_#memory_$Pointer$.base_106|], 42=[v_prenex_14, v_prenex_11]} [2019-10-07 13:19:26,839 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-07 13:19:26,848 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-07 13:27:33,146 WARN L191 SmtUtils]: Spent 8.10 m on a formula simplification. DAG size of input: 289 DAG size of output: 278 [2019-10-07 13:27:33,147 INFO L567 ElimStorePlain]: treesize reduction 5129, result has 55.4 percent of original size [2019-10-07 13:27:35,179 INFO L496 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-07 13:31:29,493 WARN L191 SmtUtils]: Spent 3.91 m on a formula simplification that was a NOOP. DAG size: 274 [2019-10-07 13:31:29,494 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 13:31:31,530 INFO L496 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts.