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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/list-simple/sll2c_update_all.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:29:04,524 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:29:04,526 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:29:04,541 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:29:04,541 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:29:04,542 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:29:04,544 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:29:04,546 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:29:04,547 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:29:04,548 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:29:04,549 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:29:04,550 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:29:04,551 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:29:04,552 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:29:04,553 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:29:04,554 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:29:04,555 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:29:04,556 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:29:04,558 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:29:04,560 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:29:04,562 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:29:04,563 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:29:04,564 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:29:04,565 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:29:04,572 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:29:04,572 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:29:04,572 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:29:04,575 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:29:04,576 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:29:04,577 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:29:04,577 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:29:04,578 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:29:04,579 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:29:04,580 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:29:04,584 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:29:04,584 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:29:04,585 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:29:04,587 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:29:04,588 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:29:04,589 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:29:04,589 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:29:04,590 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-20 13:29:04,617 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:29:04,617 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:29:04,618 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:29:04,619 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:29:04,619 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:29:04,619 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:29:04,620 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:29:04,620 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:29:04,620 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:29:04,620 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:29:04,623 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:29:04,623 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:29:04,623 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:29:04,624 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:29:04,624 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:29:04,624 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:29:04,624 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:29:04,625 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:29:04,625 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:29:04,625 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:29:04,625 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:29:04,626 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:29:04,626 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:29:04,626 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:29:04,626 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:29:04,627 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:29:04,627 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:29:04,627 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:29:04,627 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:29:04,627 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:29:04,684 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:29:04,705 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:29:04,709 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:29:04,710 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:29:04,711 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:29:04,712 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/sll2c_update_all.i [2019-09-20 13:29:04,777 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d378fa66a/55d6b239edb5412fafeb7b0d936b6d7a/FLAG1df45dfb3 [2019-09-20 13:29:05,282 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:29:05,283 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/sll2c_update_all.i [2019-09-20 13:29:05,297 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d378fa66a/55d6b239edb5412fafeb7b0d936b6d7a/FLAG1df45dfb3 [2019-09-20 13:29:05,623 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d378fa66a/55d6b239edb5412fafeb7b0d936b6d7a [2019-09-20 13:29:05,633 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:29:05,635 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:29:05,636 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:05,636 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:29:05,640 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:29:05,641 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:05" (1/1) ... [2019-09-20 13:29:05,644 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3718a9c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:05, skipping insertion in model container [2019-09-20 13:29:05,644 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:05" (1/1) ... [2019-09-20 13:29:05,651 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:29:05,703 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:29:06,192 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:06,203 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:29:06,255 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:06,330 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:29:06,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:06 WrapperNode [2019-09-20 13:29:06,331 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:06,334 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:29:06,334 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:29:06,335 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:29:06,352 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:06" (1/1) ... [2019-09-20 13:29:06,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:06" (1/1) ... [2019-09-20 13:29:06,371 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:06" (1/1) ... [2019-09-20 13:29:06,371 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:06" (1/1) ... [2019-09-20 13:29:06,387 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:06" (1/1) ... [2019-09-20 13:29:06,394 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:06" (1/1) ... [2019-09-20 13:29:06,402 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:06" (1/1) ... [2019-09-20 13:29:06,412 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:29:06,413 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:29:06,413 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:29:06,413 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:29:06,414 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:06" (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 [2019-09-20 13:29:06,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:29:06,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:29:06,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-09-20 13:29:06,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-09-20 13:29:06,470 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-09-20 13:29:06,470 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2019-09-20 13:29:06,471 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_create [2019-09-20 13:29:06,471 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_destroy [2019-09-20 13:29:06,471 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_get_data_at [2019-09-20 13:29:06,471 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_update_at [2019-09-20 13:29:06,472 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:29:06,472 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:29:06,472 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-09-20 13:29:06,473 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-09-20 13:29:06,474 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-09-20 13:29:06,474 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-09-20 13:29:06,475 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-09-20 13:29:06,475 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-09-20 13:29:06,475 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-09-20 13:29:06,475 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-09-20 13:29:06,475 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-09-20 13:29:06,475 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-09-20 13:29:06,475 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-09-20 13:29:06,476 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-09-20 13:29:06,476 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-09-20 13:29:06,477 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-09-20 13:29:06,477 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-09-20 13:29:06,477 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-09-20 13:29:06,477 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-09-20 13:29:06,477 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-09-20 13:29:06,478 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-09-20 13:29:06,478 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-09-20 13:29:06,478 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-09-20 13:29:06,478 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-09-20 13:29:06,478 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-09-20 13:29:06,478 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-09-20 13:29:06,479 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-09-20 13:29:06,479 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-09-20 13:29:06,479 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-09-20 13:29:06,479 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-09-20 13:29:06,479 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-09-20 13:29:06,479 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-09-20 13:29:06,480 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-09-20 13:29:06,480 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-09-20 13:29:06,480 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-09-20 13:29:06,481 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-09-20 13:29:06,481 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-09-20 13:29:06,481 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-09-20 13:29:06,481 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-09-20 13:29:06,481 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-09-20 13:29:06,481 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-09-20 13:29:06,482 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-09-20 13:29:06,482 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-09-20 13:29:06,482 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-09-20 13:29:06,482 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-09-20 13:29:06,482 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-09-20 13:29:06,482 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-09-20 13:29:06,482 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-09-20 13:29:06,483 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-09-20 13:29:06,483 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-09-20 13:29:06,483 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-09-20 13:29:06,483 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-09-20 13:29:06,483 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-09-20 13:29:06,483 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-09-20 13:29:06,484 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:29:06,484 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-20 13:29:06,484 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-09-20 13:29:06,485 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:29:06,485 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-09-20 13:29:06,485 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-09-20 13:29:06,486 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-09-20 13:29:06,486 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-09-20 13:29:06,486 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-09-20 13:29:06,487 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-09-20 13:29:06,487 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-09-20 13:29:06,487 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-09-20 13:29:06,487 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-09-20 13:29:06,487 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-20 13:29:06,488 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-09-20 13:29:06,488 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-09-20 13:29:06,488 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-09-20 13:29:06,489 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-09-20 13:29:06,489 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-09-20 13:29:06,489 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-09-20 13:29:06,489 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-09-20 13:29:06,490 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-09-20 13:29:06,491 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-09-20 13:29:06,491 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-09-20 13:29:06,491 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-09-20 13:29:06,491 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-09-20 13:29:06,491 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-09-20 13:29:06,491 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-09-20 13:29:06,492 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-09-20 13:29:06,492 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-09-20 13:29:06,492 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-09-20 13:29:06,492 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-09-20 13:29:06,492 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-09-20 13:29:06,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-09-20 13:29:06,493 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-09-20 13:29:06,493 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-09-20 13:29:06,493 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-09-20 13:29:06,493 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-09-20 13:29:06,493 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-09-20 13:29:06,493 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-09-20 13:29:06,493 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-09-20 13:29:06,493 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-09-20 13:29:06,494 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-09-20 13:29:06,494 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-09-20 13:29:06,494 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-09-20 13:29:06,494 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-09-20 13:29:06,494 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-09-20 13:29:06,494 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-09-20 13:29:06,495 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-09-20 13:29:06,495 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-09-20 13:29:06,495 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-09-20 13:29:06,495 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-09-20 13:29:06,496 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-09-20 13:29:06,496 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-09-20 13:29:06,497 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2019-09-20 13:29:06,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:29:06,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:29:06,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:29:06,498 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_create [2019-09-20 13:29:06,498 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_destroy [2019-09-20 13:29:06,498 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:29:06,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:29:06,498 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_get_data_at [2019-09-20 13:29:06,498 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:29:06,499 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_update_at [2019-09-20 13:29:06,499 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:29:06,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:29:06,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:29:06,849 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-09-20 13:29:07,073 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:29:07,073 INFO L283 CfgBuilder]: Removed 6 assume(true) statements. [2019-09-20 13:29:07,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:07 BoogieIcfgContainer [2019-09-20 13:29:07,075 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:29:07,076 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:29:07,077 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:29:07,080 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:29:07,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:29:05" (1/3) ... [2019-09-20 13:29:07,081 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24b41aeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:29:07, skipping insertion in model container [2019-09-20 13:29:07,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:06" (2/3) ... [2019-09-20 13:29:07,082 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24b41aeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:29:07, skipping insertion in model container [2019-09-20 13:29:07,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:07" (3/3) ... [2019-09-20 13:29:07,084 INFO L109 eAbstractionObserver]: Analyzing ICFG sll2c_update_all.i [2019-09-20 13:29:07,094 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:29:07,103 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:29:07,120 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:29:07,149 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:29:07,150 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:29:07,150 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:29:07,150 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:29:07,150 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:29:07,151 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:29:07,151 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:29:07,151 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:29:07,169 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states. [2019-09-20 13:29:07,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-09-20 13:29:07,184 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:07,185 INFO L407 BasicCegarLoop]: trace histogram [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] [2019-09-20 13:29:07,187 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:07,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:07,193 INFO L82 PathProgramCache]: Analyzing trace with hash 1158667966, now seen corresponding path program 1 times [2019-09-20 13:29:07,196 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:07,263 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:07,263 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:07,263 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:07,263 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:07,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:07,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:29:07,424 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:07,425 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:29:07,425 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:07,431 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:29:07,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:29:07,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:29:07,455 INFO L87 Difference]: Start difference. First operand 58 states. Second operand 2 states. [2019-09-20 13:29:07,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:07,493 INFO L93 Difference]: Finished difference Result 58 states and 66 transitions. [2019-09-20 13:29:07,493 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:29:07,495 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 32 [2019-09-20 13:29:07,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:07,506 INFO L225 Difference]: With dead ends: 58 [2019-09-20 13:29:07,507 INFO L226 Difference]: Without dead ends: 43 [2019-09-20 13:29:07,510 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:29:07,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-09-20 13:29:07,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2019-09-20 13:29:07,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-09-20 13:29:07,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 48 transitions. [2019-09-20 13:29:07,577 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 48 transitions. Word has length 32 [2019-09-20 13:29:07,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:07,579 INFO L475 AbstractCegarLoop]: Abstraction has 43 states and 48 transitions. [2019-09-20 13:29:07,579 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:29:07,580 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 48 transitions. [2019-09-20 13:29:07,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-09-20 13:29:07,584 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:07,584 INFO L407 BasicCegarLoop]: trace histogram [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] [2019-09-20 13:29:07,584 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:07,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:07,586 INFO L82 PathProgramCache]: Analyzing trace with hash 1470117915, now seen corresponding path program 1 times [2019-09-20 13:29:07,586 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:07,600 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:07,600 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:07,600 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:07,601 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:07,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:07,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:29:07,767 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:07,767 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 13:29:07,767 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:07,769 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:29:07,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:29:07,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:29:07,771 INFO L87 Difference]: Start difference. First operand 43 states and 48 transitions. Second operand 5 states. [2019-09-20 13:29:07,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:07,866 INFO L93 Difference]: Finished difference Result 49 states and 55 transitions. [2019-09-20 13:29:07,869 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-20 13:29:07,870 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-09-20 13:29:07,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:07,871 INFO L225 Difference]: With dead ends: 49 [2019-09-20 13:29:07,871 INFO L226 Difference]: Without dead ends: 46 [2019-09-20 13:29:07,874 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:29:07,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-09-20 13:29:07,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 44. [2019-09-20 13:29:07,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2019-09-20 13:29:07,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 49 transitions. [2019-09-20 13:29:07,922 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 49 transitions. Word has length 32 [2019-09-20 13:29:07,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:07,922 INFO L475 AbstractCegarLoop]: Abstraction has 44 states and 49 transitions. [2019-09-20 13:29:07,922 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:29:07,923 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions. [2019-09-20 13:29:07,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-09-20 13:29:07,925 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:07,925 INFO L407 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, 1, 1] [2019-09-20 13:29:07,925 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:07,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:07,930 INFO L82 PathProgramCache]: Analyzing trace with hash 2051310963, now seen corresponding path program 1 times [2019-09-20 13:29:07,937 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:07,952 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:07,953 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:07,953 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:07,955 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:07,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:08,089 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-09-20 13:29:08,090 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:08,090 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-20 13:29:08,090 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:08,091 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-20 13:29:08,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-20 13:29:08,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-09-20 13:29:08,092 INFO L87 Difference]: Start difference. First operand 44 states and 49 transitions. Second operand 4 states. [2019-09-20 13:29:08,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:08,138 INFO L93 Difference]: Finished difference Result 54 states and 61 transitions. [2019-09-20 13:29:08,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-20 13:29:08,139 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2019-09-20 13:29:08,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:08,141 INFO L225 Difference]: With dead ends: 54 [2019-09-20 13:29:08,141 INFO L226 Difference]: Without dead ends: 54 [2019-09-20 13:29:08,141 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-09-20 13:29:08,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2019-09-20 13:29:08,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 45. [2019-09-20 13:29:08,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-09-20 13:29:08,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 50 transitions. [2019-09-20 13:29:08,148 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 50 transitions. Word has length 40 [2019-09-20 13:29:08,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:08,149 INFO L475 AbstractCegarLoop]: Abstraction has 45 states and 50 transitions. [2019-09-20 13:29:08,149 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-20 13:29:08,149 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 50 transitions. [2019-09-20 13:29:08,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-09-20 13:29:08,151 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:08,151 INFO L407 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:29:08,151 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:08,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:08,152 INFO L82 PathProgramCache]: Analyzing trace with hash -121828803, now seen corresponding path program 1 times [2019-09-20 13:29:08,152 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:08,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:08,156 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:08,156 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:08,156 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:08,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:08,244 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-09-20 13:29:08,244 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:29:08,244 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-20 13:29:08,245 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 49 with the following transitions: [2019-09-20 13:29:08,247 INFO L207 CegarAbsIntRunner]: [7], [13], [15], [16], [17], [18], [19], [21], [27], [29], [32], [36], [44], [46], [49], [59], [62], [69], [75], [76], [100], [102], [109], [111], [113], [117], [118], [119], [126], [132], [133], [139], [140], [141], [142], [143], [144], [147], [148], [149], [150], [151], [152], [153] [2019-09-20 13:29:08,284 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-20 13:29:08,284 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:29:08,356 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-20 13:29:08,358 INFO L272 AbstractInterpreter]: Visited 10 different actions 10 times. Never merged. Never widened. Performed 43 root evaluator evaluations with a maximum evaluation depth of 0. Performed 43 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 33 variables. [2019-09-20 13:29:08,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:08,362 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-20 13:29:08,410 INFO L227 lantSequenceWeakener]: Weakened 8 states. On average, predicates are now at 86.04% of their original sizes. [2019-09-20 13:29:08,410 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-20 13:29:08,442 INFO L420 sIntCurrentIteration]: We unified 47 AI predicates to 47 [2019-09-20 13:29:08,442 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-20 13:29:08,443 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-20 13:29:08,443 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2019-09-20 13:29:08,443 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:08,444 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:29:08,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:29:08,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:29:08,444 INFO L87 Difference]: Start difference. First operand 45 states and 50 transitions. Second operand 6 states. [2019-09-20 13:29:08,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:08,459 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2019-09-20 13:29:08,459 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:29:08,460 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 48 [2019-09-20 13:29:08,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:08,460 INFO L225 Difference]: With dead ends: 10 [2019-09-20 13:29:08,460 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:29:08,461 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:29:08,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:29:08,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:29:08,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:29:08,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:29:08,462 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 48 [2019-09-20 13:29:08,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:08,462 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:29:08,462 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:29:08,462 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:29:08,462 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:29:08,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:29:08 BoogieIcfgContainer [2019-09-20 13:29:08,468 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:29:08,470 INFO L168 Benchmark]: Toolchain (without parser) took 2834.62 ms. Allocated memory was 136.8 MB in the beginning and 216.0 MB in the end (delta: 79.2 MB). Free memory was 82.7 MB in the beginning and 139.2 MB in the end (delta: -56.4 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:08,471 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 136.8 MB. Free memory was 102.8 MB in the beginning and 102.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:29:08,472 INFO L168 Benchmark]: CACSL2BoogieTranslator took 695.73 ms. Allocated memory was 136.8 MB in the beginning and 197.7 MB in the end (delta: 60.8 MB). Free memory was 82.5 MB in the beginning and 159.5 MB in the end (delta: -76.9 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:08,473 INFO L168 Benchmark]: Boogie Preprocessor took 78.00 ms. Allocated memory is still 197.7 MB. Free memory was 159.5 MB in the beginning and 156.2 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:08,474 INFO L168 Benchmark]: RCFGBuilder took 662.78 ms. Allocated memory is still 197.7 MB. Free memory was 156.2 MB in the beginning and 107.4 MB in the end (delta: 48.9 MB). Peak memory consumption was 48.9 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:08,475 INFO L168 Benchmark]: TraceAbstraction took 1391.45 ms. Allocated memory was 197.7 MB in the beginning and 216.0 MB in the end (delta: 18.4 MB). Free memory was 107.4 MB in the beginning and 139.2 MB in the end (delta: -31.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-20 13:29:08,479 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 136.8 MB. Free memory was 102.8 MB in the beginning and 102.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 695.73 ms. Allocated memory was 136.8 MB in the beginning and 197.7 MB in the end (delta: 60.8 MB). Free memory was 82.5 MB in the beginning and 159.5 MB in the end (delta: -76.9 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 78.00 ms. Allocated memory is still 197.7 MB. Free memory was 159.5 MB in the beginning and 156.2 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 662.78 ms. Allocated memory is still 197.7 MB. Free memory was 156.2 MB in the beginning and 107.4 MB in the end (delta: 48.9 MB). Peak memory consumption was 48.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1391.45 ms. Allocated memory was 197.7 MB in the beginning and 216.0 MB in the end (delta: 18.4 MB). Free memory was 107.4 MB in the beginning and 139.2 MB in the end (delta: -31.8 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 626]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 65 locations, 1 error locations. SAFE Result, 1.3s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 162 SDtfs, 39 SDslu, 175 SDs, 0 SdLazy, 39 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.951241134751773 AbsIntWeakeningRatio, 1.3404255319148937 AbsIntAvgWeakeningVarsNumRemoved, 0.5106382978723404 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 11 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 152 NumberOfCodeBlocks, 152 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 148 ConstructedInterpolants, 0 QuantifiedInterpolants, 7698 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 12/13 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...