/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/list-simple/sll2c_insert_unequal.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-06 21:17:52,273 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 21:17:52,276 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 21:17:52,295 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-06 21:17:52,296 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-06 21:17:52,298 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-06 21:17:52,300 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-06 21:17:52,309 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-06 21:17:52,313 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-06 21:17:52,317 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-06 21:17:52,319 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-06 21:17:52,321 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-06 21:17:52,321 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-06 21:17:52,323 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-06 21:17:52,325 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-06 21:17:52,327 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-06 21:17:52,329 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-06 21:17:52,330 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-06 21:17:52,331 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-06 21:17:52,336 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-06 21:17:52,341 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-06 21:17:52,342 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-06 21:17:52,344 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-06 21:17:52,344 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-06 21:17:52,346 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-06 21:17:52,346 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-06 21:17:52,347 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-06 21:17:52,347 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-06 21:17:52,348 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-06 21:17:52,349 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-06 21:17:52,349 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-06 21:17:52,349 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-06 21:17:52,350 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-06 21:17:52,351 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-06 21:17:52,352 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-06 21:17:52,352 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-06 21:17:52,352 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-06 21:17:52,353 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-06 21:17:52,353 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 21:17:52,354 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 21:17:52,355 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 21:17:52,355 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-06 21:17:52,369 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 21:17:52,369 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 21:17:52,370 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 21:17:52,371 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 21:17:52,371 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 21:17:52,371 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 21:17:52,371 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 21:17:52,371 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 21:17:52,372 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 21:17:52,372 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 21:17:52,372 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 21:17:52,372 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 21:17:52,372 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 21:17:52,373 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 21:17:52,373 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 21:17:52,373 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 21:17:52,373 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 21:17:52,373 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 21:17:52,374 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 21:17:52,374 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 21:17:52,374 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 21:17:52,374 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 21:17:52,374 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 21:17:52,375 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 21:17:52,375 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 21:17:52,375 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 21:17:52,375 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 21:17:52,375 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 21:17:52,376 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-06 21:17:52,651 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 21:17:52,663 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 21:17:52,667 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 21:17:52,669 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 21:17:52,669 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 21:17:52,670 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/sll2c_insert_unequal.i [2019-11-06 21:17:52,751 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f87cf5b0d/baea6dc3f9dd497e849e1e7161f6102c/FLAG85aca8c7a [2019-11-06 21:17:53,327 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 21:17:53,328 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/sll2c_insert_unequal.i [2019-11-06 21:17:53,342 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f87cf5b0d/baea6dc3f9dd497e849e1e7161f6102c/FLAG85aca8c7a [2019-11-06 21:17:53,558 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f87cf5b0d/baea6dc3f9dd497e849e1e7161f6102c [2019-11-06 21:17:53,569 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 21:17:53,571 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 21:17:53,573 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 21:17:53,573 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 21:17:53,577 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 21:17:53,578 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:17:53" (1/1) ... [2019-11-06 21:17:53,581 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ad4e703 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:17:53, skipping insertion in model container [2019-11-06 21:17:53,582 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:17:53" (1/1) ... [2019-11-06 21:17:53,591 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 21:17:53,650 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 21:17:54,039 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 21:17:54,053 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 21:17:54,108 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 21:17:54,160 INFO L192 MainTranslator]: Completed translation [2019-11-06 21:17:54,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:17:54 WrapperNode [2019-11-06 21:17:54,160 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 21:17:54,161 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 21:17:54,161 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 21:17:54,161 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 21:17:54,175 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:17:54" (1/1) ... [2019-11-06 21:17:54,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:17:54" (1/1) ... [2019-11-06 21:17:54,199 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:17:54" (1/1) ... [2019-11-06 21:17:54,199 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:17:54" (1/1) ... [2019-11-06 21:17:54,236 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:17:54" (1/1) ... [2019-11-06 21:17:54,242 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:17:54" (1/1) ... [2019-11-06 21:17:54,246 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:17:54" (1/1) ... [2019-11-06 21:17:54,253 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 21:17:54,253 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 21:17:54,254 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 21:17:54,254 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 21:17:54,255 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:17:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 21:17:54,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 21:17:54,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 21:17:54,322 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-06 21:17:54,322 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-06 21:17:54,322 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-11-06 21:17:54,322 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2019-11-06 21:17:54,322 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_create [2019-11-06 21:17:54,323 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_destroy [2019-11-06 21:17:54,323 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_insert [2019-11-06 21:17:54,323 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 21:17:54,323 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 21:17:54,323 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-06 21:17:54,324 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-06 21:17:54,324 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-06 21:17:54,324 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-06 21:17:54,324 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-06 21:17:54,325 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-06 21:17:54,325 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-06 21:17:54,325 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-06 21:17:54,325 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-06 21:17:54,326 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-06 21:17:54,326 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-06 21:17:54,326 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-06 21:17:54,326 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-06 21:17:54,326 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-06 21:17:54,326 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-06 21:17:54,327 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-06 21:17:54,327 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-06 21:17:54,327 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-06 21:17:54,327 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-06 21:17:54,327 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-06 21:17:54,327 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-06 21:17:54,327 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-06 21:17:54,328 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-06 21:17:54,328 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-06 21:17:54,328 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-06 21:17:54,328 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-06 21:17:54,328 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-06 21:17:54,328 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-06 21:17:54,328 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-06 21:17:54,329 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-06 21:17:54,329 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-06 21:17:54,329 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-06 21:17:54,329 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-06 21:17:54,329 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-06 21:17:54,329 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-06 21:17:54,330 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-06 21:17:54,330 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-06 21:17:54,330 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-06 21:17:54,330 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-06 21:17:54,330 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-06 21:17:54,330 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-06 21:17:54,330 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-06 21:17:54,331 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-06 21:17:54,331 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-06 21:17:54,331 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-06 21:17:54,331 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-06 21:17:54,331 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-06 21:17:54,331 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-06 21:17:54,331 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-06 21:17:54,332 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-06 21:17:54,332 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-06 21:17:54,332 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-06 21:17:54,332 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-06 21:17:54,332 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-06 21:17:54,332 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-06 21:17:54,332 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-06 21:17:54,333 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-11-06 21:17:54,333 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-06 21:17:54,333 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-06 21:17:54,333 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-06 21:17:54,333 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-06 21:17:54,333 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-06 21:17:54,334 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-06 21:17:54,334 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-06 21:17:54,334 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-06 21:17:54,334 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-06 21:17:54,334 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-06 21:17:54,336 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-06 21:17:54,336 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-06 21:17:54,336 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-06 21:17:54,336 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-06 21:17:54,336 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-06 21:17:54,336 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-06 21:17:54,337 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-06 21:17:54,337 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-06 21:17:54,338 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-06 21:17:54,338 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-06 21:17:54,338 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-06 21:17:54,338 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-06 21:17:54,338 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-06 21:17:54,339 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-06 21:17:54,339 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-06 21:17:54,339 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-06 21:17:54,340 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-06 21:17:54,340 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-06 21:17:54,340 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-06 21:17:54,340 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-06 21:17:54,341 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-06 21:17:54,341 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-06 21:17:54,341 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-06 21:17:54,341 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-06 21:17:54,341 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-06 21:17:54,341 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-06 21:17:54,341 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-06 21:17:54,342 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-06 21:17:54,342 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-06 21:17:54,342 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-06 21:17:54,342 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-06 21:17:54,342 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-06 21:17:54,342 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-06 21:17:54,342 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-06 21:17:54,342 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-06 21:17:54,343 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-06 21:17:54,343 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-06 21:17:54,343 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-06 21:17:54,343 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-11-06 21:17:54,343 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2019-11-06 21:17:54,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-06 21:17:54,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-06 21:17:54,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-06 21:17:54,345 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_create [2019-11-06 21:17:54,345 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_destroy [2019-11-06 21:17:54,345 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-06 21:17:54,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-06 21:17:54,345 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_insert [2019-11-06 21:17:54,345 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 21:17:54,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-06 21:17:54,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-06 21:17:54,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-06 21:17:54,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 21:17:54,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 21:17:54,697 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-11-06 21:17:55,024 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 21:17:55,027 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-06 21:17:55,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:17:55 BoogieIcfgContainer [2019-11-06 21:17:55,029 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 21:17:55,030 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 21:17:55,030 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 21:17:55,034 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 21:17:55,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:17:53" (1/3) ... [2019-11-06 21:17:55,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6999607d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:17:55, skipping insertion in model container [2019-11-06 21:17:55,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:17:54" (2/3) ... [2019-11-06 21:17:55,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6999607d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:17:55, skipping insertion in model container [2019-11-06 21:17:55,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:17:55" (3/3) ... [2019-11-06 21:17:55,042 INFO L109 eAbstractionObserver]: Analyzing ICFG sll2c_insert_unequal.i [2019-11-06 21:17:55,053 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 21:17:55,062 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 21:17:55,074 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 21:17:55,103 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 21:17:55,104 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 21:17:55,104 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 21:17:55,104 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 21:17:55,104 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 21:17:55,105 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 21:17:55,105 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 21:17:55,105 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 21:17:55,125 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states. [2019-11-06 21:17:55,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-11-06 21:17:55,133 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:17:55,134 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 21:17:55,136 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:17:55,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:17:55,142 INFO L82 PathProgramCache]: Analyzing trace with hash -1696262195, now seen corresponding path program 1 times [2019-11-06 21:17:55,151 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:17:55,151 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304992054] [2019-11-06 21:17:55,152 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:17:55,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:17:55,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:17:55,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:17:55,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:17:55,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:17:55,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:17:55,549 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-11-06 21:17:55,554 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304992054] [2019-11-06 21:17:55,555 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:17:55,555 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-06 21:17:55,556 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510387059] [2019-11-06 21:17:55,561 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-06 21:17:55,561 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:17:55,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-06 21:17:55,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-06 21:17:55,578 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 4 states. [2019-11-06 21:17:55,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:17:55,852 INFO L93 Difference]: Finished difference Result 113 states and 151 transitions. [2019-11-06 21:17:55,852 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-06 21:17:55,854 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37 [2019-11-06 21:17:55,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:17:55,864 INFO L225 Difference]: With dead ends: 113 [2019-11-06 21:17:55,865 INFO L226 Difference]: Without dead ends: 46 [2019-11-06 21:17:55,868 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-06 21:17:55,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-11-06 21:17:55,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2019-11-06 21:17:55,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2019-11-06 21:17:55,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 56 transitions. [2019-11-06 21:17:55,916 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 56 transitions. Word has length 37 [2019-11-06 21:17:55,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:17:55,918 INFO L462 AbstractCegarLoop]: Abstraction has 46 states and 56 transitions. [2019-11-06 21:17:55,918 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-06 21:17:55,918 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 56 transitions. [2019-11-06 21:17:55,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-11-06 21:17:55,922 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:17:55,922 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 21:17:55,922 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:17:55,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:17:55,923 INFO L82 PathProgramCache]: Analyzing trace with hash -734133097, now seen corresponding path program 1 times [2019-11-06 21:17:55,923 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:17:55,923 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049531462] [2019-11-06 21:17:55,923 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:17:55,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:17:56,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:17:56,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:17:56,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:17:56,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:17:56,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:17:56,160 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-11-06 21:17:56,160 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049531462] [2019-11-06 21:17:56,160 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:17:56,161 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-06 21:17:56,161 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778915988] [2019-11-06 21:17:56,163 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-06 21:17:56,163 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:17:56,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-06 21:17:56,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-06 21:17:56,164 INFO L87 Difference]: Start difference. First operand 46 states and 56 transitions. Second operand 5 states. [2019-11-06 21:17:56,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:17:56,348 INFO L93 Difference]: Finished difference Result 66 states and 82 transitions. [2019-11-06 21:17:56,348 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-06 21:17:56,348 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2019-11-06 21:17:56,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:17:56,356 INFO L225 Difference]: With dead ends: 66 [2019-11-06 21:17:56,356 INFO L226 Difference]: Without dead ends: 50 [2019-11-06 21:17:56,358 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-06 21:17:56,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2019-11-06 21:17:56,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 48. [2019-11-06 21:17:56,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2019-11-06 21:17:56,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 59 transitions. [2019-11-06 21:17:56,377 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 59 transitions. Word has length 37 [2019-11-06 21:17:56,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:17:56,377 INFO L462 AbstractCegarLoop]: Abstraction has 48 states and 59 transitions. [2019-11-06 21:17:56,377 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-06 21:17:56,377 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 59 transitions. [2019-11-06 21:17:56,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-06 21:17:56,380 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:17:56,380 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 21:17:56,380 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:17:56,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:17:56,380 INFO L82 PathProgramCache]: Analyzing trace with hash -2047030169, now seen corresponding path program 1 times [2019-11-06 21:17:56,380 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:17:56,381 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144578434] [2019-11-06 21:17:56,381 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:17:56,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:17:56,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:17:56,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:17:56,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:17:56,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:17:56,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:17:56,612 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-06 21:17:56,612 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144578434] [2019-11-06 21:17:56,612 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:17:56,613 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-06 21:17:56,613 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614482217] [2019-11-06 21:17:56,614 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-06 21:17:56,615 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:17:56,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-06 21:17:56,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-06 21:17:56,616 INFO L87 Difference]: Start difference. First operand 48 states and 59 transitions. Second operand 7 states. [2019-11-06 21:17:56,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:17:56,906 INFO L93 Difference]: Finished difference Result 86 states and 107 transitions. [2019-11-06 21:17:56,906 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-06 21:17:56,907 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2019-11-06 21:17:56,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:17:56,914 INFO L225 Difference]: With dead ends: 86 [2019-11-06 21:17:56,914 INFO L226 Difference]: Without dead ends: 51 [2019-11-06 21:17:56,915 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2019-11-06 21:17:56,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2019-11-06 21:17:56,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 49. [2019-11-06 21:17:56,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2019-11-06 21:17:56,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 60 transitions. [2019-11-06 21:17:56,932 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 60 transitions. Word has length 38 [2019-11-06 21:17:56,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:17:56,933 INFO L462 AbstractCegarLoop]: Abstraction has 49 states and 60 transitions. [2019-11-06 21:17:56,933 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-06 21:17:56,933 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 60 transitions. [2019-11-06 21:17:56,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-11-06 21:17:56,935 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:17:56,935 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 21:17:56,935 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:17:56,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:17:56,935 INFO L82 PathProgramCache]: Analyzing trace with hash 651664031, now seen corresponding path program 1 times [2019-11-06 21:17:56,936 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:17:56,936 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480343043] [2019-11-06 21:17:56,936 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:17:57,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:17:57,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:17:57,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:17:57,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:17:57,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:17:57,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:17:58,121 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2019-11-06 21:17:58,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:17:59,024 WARN L191 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 38 [2019-11-06 21:17:59,047 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 21:17:59,047 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480343043] [2019-11-06 21:17:59,047 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1010738432] [2019-11-06 21:17:59,048 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 21:17:59,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:17:59,349 INFO L256 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 125 conjunts are in the unsatisfiable core [2019-11-06 21:17:59,359 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 21:17:59,455 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-06 21:17:59,456 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-06 21:17:59,464 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 21:17:59,464 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-06 21:17:59,464 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-06 21:17:59,591 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2019-11-06 21:17:59,591 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-06 21:17:59,604 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 21:17:59,605 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-06 21:17:59,605 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:27 [2019-11-06 21:17:59,694 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 21:17:59,695 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2019-11-06 21:17:59,696 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-06 21:17:59,721 INFO L567 ElimStorePlain]: treesize reduction 14, result has 68.2 percent of original size [2019-11-06 21:17:59,722 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-06 21:17:59,722 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:32, output treesize:30 [2019-11-06 21:17:59,789 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2019-11-06 21:17:59,790 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-06 21:17:59,800 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 21:17:59,800 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-06 21:17:59,801 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:43, output treesize:28 [2019-11-06 21:17:59,872 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2019-11-06 21:17:59,872 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-06 21:17:59,882 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 21:17:59,883 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-06 21:17:59,883 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:43, output treesize:28 [2019-11-06 21:18:00,167 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-11-06 21:18:00,168 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-06 21:18:00,190 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 21:18:00,198 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2019-11-06 21:18:00,198 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-06 21:18:00,240 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 21:18:00,251 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 27 treesize of output 15 [2019-11-06 21:18:00,252 INFO L496 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-06 21:18:00,275 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 21:18:00,281 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 7 treesize of output 3 [2019-11-06 21:18:00,281 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-11-06 21:18:00,294 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 21:18:00,295 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-06 21:18:00,296 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:63, output treesize:13 [2019-11-06 21:18:00,505 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-06 21:18:00,521 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 21:18:00,522 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2019-11-06 21:18:00,522 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:83, output treesize:71 [2019-11-06 21:18:08,632 WARN L191 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 42 [2019-11-06 21:18:12,743 WARN L191 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 48 [2019-11-06 21:18:13,006 INFO L392 ElimStorePlain]: Different costs {2=[|v_#memory_int_38|], 10=[|v_#memory_$Pointer$.offset_44|, |v_#memory_$Pointer$.base_44|]} [2019-11-06 21:18:13,013 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-06 21:18:13,105 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 21:18:13,109 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-06 21:18:13,205 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 21:18:13,209 INFO L496 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-06 21:18:13,291 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 21:18:13,292 INFO L496 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 3 dim-2 vars, End of recursive call: 10 dim-0 vars, and 1 xjuncts. [2019-11-06 21:18:13,293 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 10 variables, input treesize:233, output treesize:558 [2019-11-06 21:18:32,215 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-11-06 21:18:32,268 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 21:18:32,269 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 30 [2019-11-06 21:18:32,270 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-06 21:18:32,462 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2019-11-06 21:18:32,462 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 21:18:32,465 INFO L392 ElimStorePlain]: Different costs {8=[|v_#memory_int_BEFORE_CALL_4|], 20=[|v_#memory_$Pointer$.offset_BEFORE_CALL_4|, |v_old(#memory_$Pointer$.base)_AFTER_CALL_5|]} [2019-11-06 21:18:32,480 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-06 21:18:32,484 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-06 21:18:32,487 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-06 21:18:32,531 INFO L341 Elim1Store]: treesize reduction 36, result has 42.9 percent of original size [2019-11-06 21:18:32,532 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 197 treesize of output 82 [2019-11-06 21:18:32,533 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-06 21:18:32,736 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2019-11-06 21:18:32,737 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 21:18:32,741 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-06 21:18:32,748 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-06 21:18:32,751 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-06 21:18:32,985 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2019-11-06 21:18:32,986 INFO L341 Elim1Store]: treesize reduction 78, result has 77.5 percent of original size [2019-11-06 21:18:32,987 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 346 treesize of output 453 [2019-11-06 21:18:32,989 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-06 21:18:33,326 WARN L191 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 80 [2019-11-06 21:18:33,327 INFO L567 ElimStorePlain]: treesize reduction 211, result has 59.7 percent of original size [2019-11-06 21:18:33,331 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-06 21:18:33,341 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-06 21:18:33,343 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-06 21:18:33,497 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 52 [2019-11-06 21:18:33,498 INFO L341 Elim1Store]: treesize reduction 44, result has 74.0 percent of original size [2019-11-06 21:18:33,499 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 154 treesize of output 169 [2019-11-06 21:18:33,501 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-06 21:18:33,502 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-06 21:18:33,503 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:18:33,508 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-06 21:18:33,509 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:18:33,511 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-06 21:18:33,512 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:18:33,516 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-11-06 21:18:33,897 WARN L191 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 82 [2019-11-06 21:18:33,897 INFO L567 ElimStorePlain]: treesize reduction 638, result has 31.5 percent of original size [2019-11-06 21:18:33,899 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:18:33,901 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:18:33,902 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:18:33,903 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:18:33,905 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:18:33,906 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:18:33,908 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:18:33,908 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:18:33,910 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:18:33,910 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:18:33,914 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:18:33,915 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:18:33,915 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:18:33,916 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:18:33,917 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:18:33,918 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:18:33,919 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:18:33,921 INFO L496 ElimStorePlain]: Start of recursive call 1: 11 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-06 21:18:33,921 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 15 variables, input treesize:613, output treesize:658 [2019-11-06 21:18:34,153 INFO L392 ElimStorePlain]: Different costs {0=[|#memory_$Pointer$.offset|], 1=[|#memory_$Pointer$.base|]} [2019-11-06 21:18:34,158 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-11-06 21:18:34,158 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-06 21:18:34,174 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 21:18:34,181 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 21:18:34,181 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 36 [2019-11-06 21:18:34,182 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:18:34,183 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-06 21:18:34,198 INFO L567 ElimStorePlain]: treesize reduction 4, result has 82.6 percent of original size [2019-11-06 21:18:34,199 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-06 21:18:34,199 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:74, output treesize:14 [2019-11-06 21:18:34,217 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-11-06 21:18:34,218 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-06 21:18:34,221 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 21:18:34,222 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-06 21:18:34,222 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:7 [2019-11-06 21:18:34,240 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 21:18:34,241 INFO L218 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-06 21:18:34,241 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 44 [2019-11-06 21:18:34,241 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672760607] [2019-11-06 21:18:34,242 INFO L442 AbstractCegarLoop]: Interpolant automaton has 44 states [2019-11-06 21:18:34,242 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:18:34,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2019-11-06 21:18:34,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=1748, Unknown=11, NotChecked=0, Total=1892 [2019-11-06 21:18:34,245 INFO L87 Difference]: Start difference. First operand 49 states and 60 transitions. Second operand 44 states.