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_equal.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:12:38,130 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:12:38,132 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:12:38,153 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:12:38,153 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:12:38,156 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:12:38,158 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:12:38,172 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:12:38,175 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:12:38,176 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:12:38,179 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:12:38,181 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:12:38,182 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:12:38,185 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:12:38,188 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:12:38,190 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:12:38,191 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:12:38,192 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:12:38,195 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:12:38,198 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:12:38,203 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:12:38,204 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:12:38,207 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:12:38,207 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:12:38,212 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 23:12:38,212 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 23:12:38,212 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 23:12:38,215 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 23:12:38,216 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 23:12:38,218 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 23:12:38,218 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:12:38,220 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:12:38,221 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:12:38,222 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:12:38,224 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:12:38,225 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:12:38,225 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:12:38,226 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:12:38,226 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:12:38,228 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:12:38,232 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:12:38,233 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 [2019-10-14 23:12:38,254 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:12:38,254 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:12:38,257 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:12:38,257 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:12:38,257 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:12:38,257 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:12:38,258 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:12:38,258 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:12:38,258 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:12:38,258 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:12:38,260 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:12:38,260 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:12:38,260 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:12:38,261 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:12:38,261 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:12:38,261 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:12:38,261 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:12:38,262 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:12:38,262 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:12:38,262 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:12:38,262 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:12:38,263 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:12:38,263 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:12:38,263 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:12:38,263 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:12:38,263 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:12:38,264 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:12:38,264 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:12:38,264 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:12:38,620 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:12:38,635 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:12:38,639 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:12:38,641 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:12:38,641 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:12:38,642 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/sll2c_insert_equal.i [2019-10-14 23:12:38,711 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c77a6889/d046eb5908f449b6bb697fe1ce06b5d8/FLAG98befed29 [2019-10-14 23:12:39,284 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:12:39,285 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/sll2c_insert_equal.i [2019-10-14 23:12:39,311 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c77a6889/d046eb5908f449b6bb697fe1ce06b5d8/FLAG98befed29 [2019-10-14 23:12:39,590 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c77a6889/d046eb5908f449b6bb697fe1ce06b5d8 [2019-10-14 23:12:39,599 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:12:39,600 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:12:39,601 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:12:39,601 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:12:39,605 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:12:39,606 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:12:39" (1/1) ... [2019-10-14 23:12:39,609 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50821800 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:12:39, skipping insertion in model container [2019-10-14 23:12:39,609 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:12:39" (1/1) ... [2019-10-14 23:12:39,617 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:12:39,667 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:12:40,129 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:12:40,146 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:12:40,205 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:12:40,262 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:12:40,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:12:40 WrapperNode [2019-10-14 23:12:40,263 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:12:40,264 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:12:40,264 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:12:40,264 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:12:40,280 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:12:40" (1/1) ... [2019-10-14 23:12:40,280 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:12:40" (1/1) ... [2019-10-14 23:12:40,298 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:12:40" (1/1) ... [2019-10-14 23:12:40,298 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:12:40" (1/1) ... [2019-10-14 23:12:40,316 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:12:40" (1/1) ... [2019-10-14 23:12:40,323 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:12:40" (1/1) ... [2019-10-14 23:12:40,327 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:12:40" (1/1) ... [2019-10-14 23:12:40,338 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:12:40,338 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:12:40,338 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:12:40,339 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:12:40,340 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:12:40" (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 [2019-10-14 23:12:40,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:12:40,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:12:40,411 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-14 23:12:40,412 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-14 23:12:40,412 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-10-14 23:12:40,412 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2019-10-14 23:12:40,412 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_create [2019-10-14 23:12:40,413 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_destroy [2019-10-14 23:12:40,413 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_insert [2019-10-14 23:12:40,413 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:12:40,413 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:12:40,413 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-14 23:12:40,414 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-14 23:12:40,414 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-14 23:12:40,414 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-14 23:12:40,414 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-14 23:12:40,415 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-14 23:12:40,415 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-14 23:12:40,415 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-14 23:12:40,415 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-14 23:12:40,417 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-14 23:12:40,417 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-14 23:12:40,417 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-14 23:12:40,417 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-14 23:12:40,418 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-14 23:12:40,418 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-14 23:12:40,418 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-14 23:12:40,418 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-14 23:12:40,419 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-14 23:12:40,420 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-14 23:12:40,420 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-14 23:12:40,420 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-14 23:12:40,421 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-14 23:12:40,421 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-14 23:12:40,421 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-14 23:12:40,421 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-14 23:12:40,421 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-14 23:12:40,422 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-14 23:12:40,422 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-14 23:12:40,422 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-14 23:12:40,422 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-14 23:12:40,423 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-14 23:12:40,423 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-14 23:12:40,423 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-14 23:12:40,423 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-14 23:12:40,424 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-14 23:12:40,424 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-14 23:12:40,424 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-14 23:12:40,424 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-14 23:12:40,424 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-14 23:12:40,424 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-14 23:12:40,424 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-14 23:12:40,425 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-14 23:12:40,425 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-14 23:12:40,425 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-14 23:12:40,425 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-14 23:12:40,425 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-14 23:12:40,425 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-14 23:12:40,426 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-14 23:12:40,426 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-14 23:12:40,426 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-14 23:12:40,426 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-14 23:12:40,426 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-14 23:12:40,426 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-14 23:12:40,426 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-14 23:12:40,427 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-14 23:12:40,427 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-14 23:12:40,427 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-14 23:12:40,428 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-14 23:12:40,429 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-14 23:12:40,429 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-14 23:12:40,429 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-14 23:12:40,429 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-14 23:12:40,429 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-14 23:12:40,430 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-14 23:12:40,430 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-14 23:12:40,431 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-14 23:12:40,431 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-14 23:12:40,431 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-14 23:12:40,431 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-14 23:12:40,432 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-14 23:12:40,432 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-14 23:12:40,433 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-14 23:12:40,433 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-14 23:12:40,433 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-14 23:12:40,433 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-14 23:12:40,433 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-14 23:12:40,434 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-14 23:12:40,435 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-14 23:12:40,435 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-14 23:12:40,436 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-14 23:12:40,436 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-14 23:12:40,436 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-14 23:12:40,436 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-14 23:12:40,436 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-14 23:12:40,436 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-14 23:12:40,437 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-14 23:12:40,437 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-14 23:12:40,437 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-14 23:12:40,437 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-14 23:12:40,437 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-14 23:12:40,437 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-14 23:12:40,437 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-14 23:12:40,438 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-14 23:12:40,438 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-14 23:12:40,438 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-14 23:12:40,438 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-14 23:12:40,438 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-14 23:12:40,438 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-14 23:12:40,438 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-14 23:12:40,439 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-14 23:12:40,439 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-14 23:12:40,439 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-14 23:12:40,439 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-14 23:12:40,439 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-14 23:12:40,439 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-14 23:12:40,440 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-10-14 23:12:40,440 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2019-10-14 23:12:40,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-14 23:12:40,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-14 23:12:40,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 23:12:40,441 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_create [2019-10-14 23:12:40,442 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_destroy [2019-10-14 23:12:40,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-14 23:12:40,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 23:12:40,442 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_insert [2019-10-14 23:12:40,442 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:12:40,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 23:12:40,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-14 23:12:40,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 23:12:40,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:12:40,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:12:40,842 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-10-14 23:12:41,035 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:12:41,035 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-14 23:12:41,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:12:41 BoogieIcfgContainer [2019-10-14 23:12:41,037 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:12:41,038 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:12:41,038 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:12:41,041 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:12:41,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:12:39" (1/3) ... [2019-10-14 23:12:41,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fa2cd3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:12:41, skipping insertion in model container [2019-10-14 23:12:41,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:12:40" (2/3) ... [2019-10-14 23:12:41,043 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fa2cd3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:12:41, skipping insertion in model container [2019-10-14 23:12:41,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:12:41" (3/3) ... [2019-10-14 23:12:41,044 INFO L109 eAbstractionObserver]: Analyzing ICFG sll2c_insert_equal.i [2019-10-14 23:12:41,054 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:12:41,062 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:12:41,073 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:12:41,097 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:12:41,097 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:12:41,098 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:12:41,098 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:12:41,098 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:12:41,098 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:12:41,098 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:12:41,098 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:12:41,117 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2019-10-14 23:12:41,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-10-14 23:12:41,124 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:12:41,125 INFO L380 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] [2019-10-14 23:12:41,127 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:12:41,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:12:41,132 INFO L82 PathProgramCache]: Analyzing trace with hash -1328667979, now seen corresponding path program 1 times [2019-10-14 23:12:41,141 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:12:41,141 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118091709] [2019-10-14 23:12:41,142 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:12:41,142 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:12:41,142 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:12:41,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:41,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:41,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:41,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:41,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:41,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:41,615 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-14 23:12:41,616 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118091709] [2019-10-14 23:12:41,617 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:12:41,617 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-14 23:12:41,618 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405549123] [2019-10-14 23:12:41,622 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 23:12:41,623 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:12:41,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 23:12:41,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-14 23:12:41,641 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 4 states. [2019-10-14 23:12:41,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:12:41,900 INFO L93 Difference]: Finished difference Result 101 states and 131 transitions. [2019-10-14 23:12:41,900 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 23:12:41,902 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37 [2019-10-14 23:12:41,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:12:41,911 INFO L225 Difference]: With dead ends: 101 [2019-10-14 23:12:41,912 INFO L226 Difference]: Without dead ends: 40 [2019-10-14 23:12:41,916 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-14 23:12:41,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-10-14 23:12:41,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2019-10-14 23:12:41,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-10-14 23:12:41,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 47 transitions. [2019-10-14 23:12:41,974 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 47 transitions. Word has length 37 [2019-10-14 23:12:41,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:12:41,976 INFO L462 AbstractCegarLoop]: Abstraction has 40 states and 47 transitions. [2019-10-14 23:12:41,977 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-14 23:12:41,977 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 47 transitions. [2019-10-14 23:12:41,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-10-14 23:12:41,981 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:12:41,981 INFO L380 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] [2019-10-14 23:12:41,982 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:12:41,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:12:41,983 INFO L82 PathProgramCache]: Analyzing trace with hash 290011354, now seen corresponding path program 1 times [2019-10-14 23:12:41,985 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:12:41,985 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28544713] [2019-10-14 23:12:41,985 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:12:41,985 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:12:41,986 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:12:42,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:42,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:42,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:42,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:42,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:42,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:42,194 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-14 23:12:42,194 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28544713] [2019-10-14 23:12:42,194 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:12:42,195 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-14 23:12:42,195 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89521895] [2019-10-14 23:12:42,197 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-14 23:12:42,197 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:12:42,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-14 23:12:42,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-14 23:12:42,198 INFO L87 Difference]: Start difference. First operand 40 states and 47 transitions. Second operand 5 states. [2019-10-14 23:12:42,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:12:42,398 INFO L93 Difference]: Finished difference Result 54 states and 64 transitions. [2019-10-14 23:12:42,398 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-14 23:12:42,398 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2019-10-14 23:12:42,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:12:42,403 INFO L225 Difference]: With dead ends: 54 [2019-10-14 23:12:42,403 INFO L226 Difference]: Without dead ends: 44 [2019-10-14 23:12:42,405 INFO L600 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 [2019-10-14 23:12:42,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2019-10-14 23:12:42,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2019-10-14 23:12:42,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-10-14 23:12:42,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 50 transitions. [2019-10-14 23:12:42,425 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 50 transitions. Word has length 37 [2019-10-14 23:12:42,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:12:42,426 INFO L462 AbstractCegarLoop]: Abstraction has 42 states and 50 transitions. [2019-10-14 23:12:42,426 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-14 23:12:42,426 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 50 transitions. [2019-10-14 23:12:42,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-10-14 23:12:42,431 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:12:42,431 INFO L380 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] [2019-10-14 23:12:42,431 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:12:42,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:12:42,432 INFO L82 PathProgramCache]: Analyzing trace with hash 329318240, now seen corresponding path program 1 times [2019-10-14 23:12:42,433 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:12:42,433 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545833656] [2019-10-14 23:12:42,433 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:12:42,433 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:12:42,434 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:12:42,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:42,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:42,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:42,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:42,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:42,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:42,639 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-14 23:12:42,639 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545833656] [2019-10-14 23:12:42,640 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:12:42,640 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-14 23:12:42,640 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104044847] [2019-10-14 23:12:42,641 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-14 23:12:42,641 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:12:42,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-14 23:12:42,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-14 23:12:42,641 INFO L87 Difference]: Start difference. First operand 42 states and 50 transitions. Second operand 7 states. [2019-10-14 23:12:42,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:12:42,926 INFO L93 Difference]: Finished difference Result 74 states and 89 transitions. [2019-10-14 23:12:42,927 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-14 23:12:42,927 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2019-10-14 23:12:42,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:12:42,929 INFO L225 Difference]: With dead ends: 74 [2019-10-14 23:12:42,929 INFO L226 Difference]: Without dead ends: 45 [2019-10-14 23:12:42,929 INFO L600 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 [2019-10-14 23:12:42,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-10-14 23:12:42,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 43. [2019-10-14 23:12:42,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-10-14 23:12:42,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 51 transitions. [2019-10-14 23:12:42,950 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 51 transitions. Word has length 38 [2019-10-14 23:12:42,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:12:42,951 INFO L462 AbstractCegarLoop]: Abstraction has 43 states and 51 transitions. [2019-10-14 23:12:42,951 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-14 23:12:42,951 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 51 transitions. [2019-10-14 23:12:42,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-14 23:12:42,956 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:12:42,957 INFO L380 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] [2019-10-14 23:12:42,957 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:12:42,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:12:42,957 INFO L82 PathProgramCache]: Analyzing trace with hash 297259480, now seen corresponding path program 1 times [2019-10-14 23:12:42,958 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:12:42,958 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933935998] [2019-10-14 23:12:42,958 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:12:42,958 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:12:42,958 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:12:43,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:43,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:43,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:43,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:43,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:43,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:44,197 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2019-10-14 23:12:44,382 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-10-14 23:12:44,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:45,135 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 38 [2019-10-14 23:12:45,161 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:12:45,161 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933935998] [2019-10-14 23:12:45,162 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2090685640] [2019-10-14 23:12:45,162 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:12:45,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:12:45,335 INFO L256 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 125 conjunts are in the unsatisfiable core [2019-10-14 23:12:45,346 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:12:45,472 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 [2019-10-14 23:12:45,472 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-14 23:12:45,475 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:12:45,475 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-14 23:12:45,475 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-10-14 23:12:45,638 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 [2019-10-14 23:12:45,638 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-14 23:12:45,649 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:12:45,650 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-14 23:12:45,650 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:27 [2019-10-14 23:12:45,743 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:12:45,744 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 [2019-10-14 23:12:45,745 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-14 23:12:45,773 INFO L567 ElimStorePlain]: treesize reduction 14, result has 68.2 percent of original size [2019-10-14 23:12:45,774 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-14 23:12:45,774 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:32, output treesize:30 [2019-10-14 23:12:45,855 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 [2019-10-14 23:12:45,856 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-14 23:12:45,869 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:12:45,869 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-14 23:12:45,870 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:43, output treesize:28 [2019-10-14 23:12:45,955 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 [2019-10-14 23:12:45,956 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-14 23:12:45,968 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:12:45,969 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. [2019-10-14 23:12:45,969 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:43, output treesize:28 [2019-10-14 23:12:46,289 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 [2019-10-14 23:12:46,289 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-14 23:12:46,309 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:12:46,321 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2019-10-14 23:12:46,322 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-14 23:12:46,348 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:12:46,363 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 [2019-10-14 23:12:46,364 INFO L496 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-14 23:12:46,386 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:12:46,391 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 [2019-10-14 23:12:46,392 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-10-14 23:12:46,406 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:12:46,407 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. [2019-10-14 23:12:46,408 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:63, output treesize:13 [2019-10-14 23:12:46,592 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-14 23:12:46,616 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:12:46,617 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. [2019-10-14 23:12:46,617 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:83, output treesize:71 [2019-10-14 23:12:54,740 WARN L191 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 42 [2019-10-14 23:12:58,890 WARN L191 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 48 [2019-10-14 23:12:59,230 INFO L392 ElimStorePlain]: Different costs {2=[|v_#memory_int_36|], 10=[|v_#memory_$Pointer$.base_41|, |v_#memory_$Pointer$.offset_41|]} [2019-10-14 23:12:59,237 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-14 23:12:59,327 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:12:59,332 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-14 23:12:59,418 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:12:59,423 INFO L496 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-14 23:12:59,526 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2019-10-14 23:12:59,526 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:12:59,527 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. [2019-10-14 23:12:59,528 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 10 variables, input treesize:233, output treesize:558 [2019-10-14 23:13:20,395 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-10-14 23:13:20,453 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:13:20,454 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 [2019-10-14 23:13:20,455 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-14 23:13:20,637 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2019-10-14 23:13:20,638 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:13:20,641 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|]} [2019-10-14 23:13:20,660 INFO L172 IndexEqualityManager]: detected equality via solver [2019-10-14 23:13:20,670 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-14 23:13:20,674 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-14 23:13:20,717 INFO L341 Elim1Store]: treesize reduction 36, result has 42.9 percent of original size [2019-10-14 23:13:20,718 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 [2019-10-14 23:13:20,719 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-14 23:13:20,863 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2019-10-14 23:13:20,863 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:13:20,868 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-14 23:13:20,879 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-14 23:13:20,882 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-14 23:13:21,121 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2019-10-14 23:13:21,122 INFO L341 Elim1Store]: treesize reduction 78, result has 77.5 percent of original size [2019-10-14 23:13:21,123 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 [2019-10-14 23:13:21,127 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-10-14 23:13:21,426 WARN L191 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 80 [2019-10-14 23:13:21,427 INFO L567 ElimStorePlain]: treesize reduction 211, result has 59.7 percent of original size [2019-10-14 23:13:21,430 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-14 23:13:21,440 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-14 23:13:21,448 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-14 23:13:21,632 WARN L191 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 52 [2019-10-14 23:13:21,632 INFO L341 Elim1Store]: treesize reduction 44, result has 74.0 percent of original size [2019-10-14 23:13:21,633 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 [2019-10-14 23:13:21,635 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-14 23:13:21,636 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-14 23:13:21,637 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:13:21,642 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-14 23:13:21,643 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:13:21,645 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-14 23:13:21,646 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:13:21,649 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-10-14 23:13:22,035 WARN L191 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 84 [2019-10-14 23:13:22,035 INFO L567 ElimStorePlain]: treesize reduction 612, result has 34.3 percent of original size [2019-10-14 23:13:22,038 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:13:22,039 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:13:22,040 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:13:22,042 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:13:22,042 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-14 23:13:22,043 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:13:22,044 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:13:22,045 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-14 23:13:22,046 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:13:22,046 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:13:22,048 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:13:22,048 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-14 23:13:22,049 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:13:22,049 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:13:22,050 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-14 23:13:22,051 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:13:22,052 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:13:22,053 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:13:22,055 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:13:22,056 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-14 23:13:22,056 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:13:22,057 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:13:22,058 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-14 23:13:22,059 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:13:22,060 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:13:22,062 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:13:22,063 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:13:22,082 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-14 23:13:22,083 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:13:22,086 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:13:22,087 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:13:22,088 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:13:22,091 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:13:22,092 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:13:22,092 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:13:22,095 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:13:22,096 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:13:22,097 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:13:22,098 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:13:22,100 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:13:22,102 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. [2019-10-14 23:13:22,103 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 15 variables, input treesize:613, output treesize:1329 [2019-10-14 23:13:22,405 INFO L392 ElimStorePlain]: Different costs {0=[|#memory_$Pointer$.offset|], 1=[|#memory_$Pointer$.base|]} [2019-10-14 23:13:22,411 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 [2019-10-14 23:13:22,411 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-14 23:13:22,433 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:13:22,439 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:13:22,440 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 [2019-10-14 23:13:22,441 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:13:22,442 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-14 23:13:22,463 INFO L567 ElimStorePlain]: treesize reduction 4, result has 82.6 percent of original size [2019-10-14 23:13:22,464 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-14 23:13:22,464 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:74, output treesize:14 [2019-10-14 23:13:22,479 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 [2019-10-14 23:13:22,479 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-14 23:13:22,485 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:13:22,485 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-14 23:13:22,486 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:7 [2019-10-14 23:13:22,506 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:13:22,506 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-14 23:13:22,507 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 44 [2019-10-14 23:13:22,507 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297130694] [2019-10-14 23:13:22,509 INFO L442 AbstractCegarLoop]: Interpolant automaton has 44 states [2019-10-14 23:13:22,509 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:13:22,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2019-10-14 23:13:22,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=1745, Unknown=14, NotChecked=0, Total=1892 [2019-10-14 23:13:22,512 INFO L87 Difference]: Start difference. First operand 43 states and 51 transitions. Second operand 44 states.