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-efa34d5 [2019-09-16 17:07:18,473 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 17:07:18,476 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 17:07:18,494 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 17:07:18,494 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 17:07:18,496 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 17:07:18,498 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 17:07:18,512 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 17:07:18,514 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 17:07:18,516 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 17:07:18,519 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 17:07:18,520 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 17:07:18,521 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 17:07:18,524 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 17:07:18,526 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 17:07:18,529 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 17:07:18,530 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 17:07:18,533 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 17:07:18,535 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 17:07:18,540 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 17:07:18,545 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 17:07:18,546 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 17:07:18,550 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 17:07:18,551 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 17:07:18,554 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-16 17:07:18,554 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-16 17:07:18,554 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-16 17:07:18,556 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-16 17:07:18,558 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-16 17:07:18,559 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-16 17:07:18,559 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 17:07:18,561 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 17:07:18,562 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 17:07:18,563 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 17:07:18,565 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 17:07:18,565 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 17:07:18,566 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 17:07:18,566 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 17:07:18,566 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 17:07:18,568 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 17:07:18,569 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 17:07:18,571 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 [2019-09-16 17:07:18,594 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 17:07:18,595 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 17:07:18,596 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-16 17:07:18,596 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-16 17:07:18,597 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-16 17:07:18,597 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-16 17:07:18,597 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-16 17:07:18,597 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-16 17:07:18,597 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-16 17:07:18,598 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-16 17:07:18,599 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 17:07:18,600 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 17:07:18,600 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 17:07:18,600 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 17:07:18,601 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 17:07:18,601 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 17:07:18,601 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 17:07:18,601 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 17:07:18,602 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 17:07:18,602 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 17:07:18,602 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 17:07:18,602 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-16 17:07:18,602 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 17:07:18,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:07:18,603 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 17:07:18,603 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 17:07:18,604 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-16 17:07:18,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 17:07:18,604 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 17:07:18,604 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-16 17:07:18,656 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 17:07:18,667 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 17:07:18,670 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 17:07:18,671 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 17:07:18,672 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 17:07:18,672 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/sll2c_update_all.i [2019-09-16 17:07:18,741 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ec77105b/ac62fcc69aea41fbba4f51c877b5f288/FLAGd309ecff1 [2019-09-16 17:07:19,370 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 17:07:19,370 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/sll2c_update_all.i [2019-09-16 17:07:19,383 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ec77105b/ac62fcc69aea41fbba4f51c877b5f288/FLAGd309ecff1 [2019-09-16 17:07:19,604 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ec77105b/ac62fcc69aea41fbba4f51c877b5f288 [2019-09-16 17:07:19,614 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 17:07:19,615 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 17:07:19,616 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 17:07:19,616 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 17:07:19,620 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 17:07:19,621 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:07:19" (1/1) ... [2019-09-16 17:07:19,624 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a26c9d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:19, skipping insertion in model container [2019-09-16 17:07:19,624 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:07:19" (1/1) ... [2019-09-16 17:07:19,632 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 17:07:19,672 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 17:07:20,083 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:07:20,098 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 17:07:20,164 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:07:20,230 INFO L192 MainTranslator]: Completed translation [2019-09-16 17:07:20,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:20 WrapperNode [2019-09-16 17:07:20,231 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 17:07:20,232 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 17:07:20,232 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 17:07:20,232 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 17:07:20,247 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:20" (1/1) ... [2019-09-16 17:07:20,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:20" (1/1) ... [2019-09-16 17:07:20,274 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:20" (1/1) ... [2019-09-16 17:07:20,275 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:20" (1/1) ... [2019-09-16 17:07:20,291 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:20" (1/1) ... [2019-09-16 17:07:20,297 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:20" (1/1) ... [2019-09-16 17:07:20,301 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:20" (1/1) ... [2019-09-16 17:07:20,308 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 17:07:20,309 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 17:07:20,309 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 17:07:20,309 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 17:07:20,310 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:20" (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 [2019-09-16 17:07:20,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 17:07:20,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 17:07:20,374 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-09-16 17:07:20,374 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-09-16 17:07:20,374 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-09-16 17:07:20,374 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2019-09-16 17:07:20,374 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_create [2019-09-16 17:07:20,375 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_destroy [2019-09-16 17:07:20,375 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_get_data_at [2019-09-16 17:07:20,375 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_update_at [2019-09-16 17:07:20,375 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 17:07:20,375 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 17:07:20,376 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-09-16 17:07:20,376 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-09-16 17:07:20,377 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-09-16 17:07:20,377 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-09-16 17:07:20,378 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-09-16 17:07:20,378 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-09-16 17:07:20,378 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-09-16 17:07:20,378 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-09-16 17:07:20,378 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-09-16 17:07:20,378 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-09-16 17:07:20,379 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-09-16 17:07:20,379 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-09-16 17:07:20,380 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-09-16 17:07:20,380 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-09-16 17:07:20,380 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-09-16 17:07:20,380 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-09-16 17:07:20,380 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-09-16 17:07:20,381 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-09-16 17:07:20,381 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-09-16 17:07:20,381 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-09-16 17:07:20,381 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-09-16 17:07:20,381 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-09-16 17:07:20,381 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-09-16 17:07:20,381 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-09-16 17:07:20,382 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-09-16 17:07:20,382 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-09-16 17:07:20,382 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-09-16 17:07:20,382 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-09-16 17:07:20,382 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-09-16 17:07:20,383 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-09-16 17:07:20,383 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-09-16 17:07:20,383 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-09-16 17:07:20,383 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-09-16 17:07:20,383 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-09-16 17:07:20,383 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-09-16 17:07:20,383 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-09-16 17:07:20,384 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-09-16 17:07:20,384 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-09-16 17:07:20,384 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-09-16 17:07:20,384 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-09-16 17:07:20,384 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-09-16 17:07:20,384 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-09-16 17:07:20,385 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-09-16 17:07:20,385 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-09-16 17:07:20,385 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-09-16 17:07:20,385 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-09-16 17:07:20,385 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-09-16 17:07:20,385 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-09-16 17:07:20,385 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-09-16 17:07:20,386 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-09-16 17:07:20,386 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-09-16 17:07:20,386 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-09-16 17:07:20,386 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-16 17:07:20,387 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-16 17:07:20,387 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-09-16 17:07:20,388 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-16 17:07:20,388 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-09-16 17:07:20,388 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-09-16 17:07:20,388 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-09-16 17:07:20,388 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-09-16 17:07:20,388 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-09-16 17:07:20,389 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-09-16 17:07:20,389 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-09-16 17:07:20,390 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-09-16 17:07:20,390 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-09-16 17:07:20,390 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-16 17:07:20,390 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-09-16 17:07:20,391 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-09-16 17:07:20,391 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-09-16 17:07:20,391 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-09-16 17:07:20,391 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-09-16 17:07:20,391 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-09-16 17:07:20,391 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-09-16 17:07:20,392 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-09-16 17:07:20,393 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-09-16 17:07:20,393 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-09-16 17:07:20,394 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-09-16 17:07:20,394 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-09-16 17:07:20,394 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-09-16 17:07:20,394 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-09-16 17:07:20,394 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-09-16 17:07:20,394 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-09-16 17:07:20,395 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-09-16 17:07:20,395 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-09-16 17:07:20,395 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-09-16 17:07:20,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-09-16 17:07:20,395 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-09-16 17:07:20,395 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-09-16 17:07:20,395 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-09-16 17:07:20,396 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-09-16 17:07:20,396 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-09-16 17:07:20,396 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-09-16 17:07:20,396 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-09-16 17:07:20,396 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-09-16 17:07:20,396 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-09-16 17:07:20,396 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-09-16 17:07:20,397 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-09-16 17:07:20,397 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-09-16 17:07:20,397 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-09-16 17:07:20,397 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-09-16 17:07:20,397 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-09-16 17:07:20,397 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-09-16 17:07:20,398 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-09-16 17:07:20,398 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-09-16 17:07:20,398 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-09-16 17:07:20,399 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-09-16 17:07:20,399 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2019-09-16 17:07:20,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-16 17:07:20,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-16 17:07:20,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-16 17:07:20,401 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_create [2019-09-16 17:07:20,401 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_destroy [2019-09-16 17:07:20,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-16 17:07:20,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-16 17:07:20,401 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_get_data_at [2019-09-16 17:07:20,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-16 17:07:20,401 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_update_at [2019-09-16 17:07:20,402 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 17:07:20,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 17:07:20,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 17:07:20,767 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-09-16 17:07:20,970 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 17:07:20,971 INFO L283 CfgBuilder]: Removed 6 assume(true) statements. [2019-09-16 17:07:20,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:07:20 BoogieIcfgContainer [2019-09-16 17:07:20,972 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 17:07:20,973 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 17:07:20,974 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 17:07:20,977 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 17:07:20,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 05:07:19" (1/3) ... [2019-09-16 17:07:20,978 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@305c0d16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:07:20, skipping insertion in model container [2019-09-16 17:07:20,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:20" (2/3) ... [2019-09-16 17:07:20,979 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@305c0d16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:07:20, skipping insertion in model container [2019-09-16 17:07:20,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:07:20" (3/3) ... [2019-09-16 17:07:20,981 INFO L109 eAbstractionObserver]: Analyzing ICFG sll2c_update_all.i [2019-09-16 17:07:20,991 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 17:07:20,999 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-16 17:07:21,017 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-16 17:07:21,044 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 17:07:21,045 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-16 17:07:21,045 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 17:07:21,045 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 17:07:21,046 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 17:07:21,046 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 17:07:21,046 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 17:07:21,046 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 17:07:21,063 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states. [2019-09-16 17:07:21,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-09-16 17:07:21,076 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:21,078 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] [2019-09-16 17:07:21,080 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:21,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:21,087 INFO L82 PathProgramCache]: Analyzing trace with hash 1158667966, now seen corresponding path program 1 times [2019-09-16 17:07:21,089 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:21,157 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:21,157 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:21,157 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:21,158 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:21,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:21,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:07:21,291 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:07:21,292 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-16 17:07:21,292 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:21,298 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:07:21,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:07:21,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:07:21,315 INFO L87 Difference]: Start difference. First operand 58 states. Second operand 2 states. [2019-09-16 17:07:21,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:21,336 INFO L93 Difference]: Finished difference Result 58 states and 66 transitions. [2019-09-16 17:07:21,336 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:07:21,337 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 32 [2019-09-16 17:07:21,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:21,345 INFO L225 Difference]: With dead ends: 58 [2019-09-16 17:07:21,345 INFO L226 Difference]: Without dead ends: 43 [2019-09-16 17:07:21,348 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 [2019-09-16 17:07:21,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-09-16 17:07:21,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2019-09-16 17:07:21,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-09-16 17:07:21,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 48 transitions. [2019-09-16 17:07:21,390 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 48 transitions. Word has length 32 [2019-09-16 17:07:21,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:21,392 INFO L475 AbstractCegarLoop]: Abstraction has 43 states and 48 transitions. [2019-09-16 17:07:21,392 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:07:21,392 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 48 transitions. [2019-09-16 17:07:21,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-09-16 17:07:21,394 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:21,394 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] [2019-09-16 17:07:21,395 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:21,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:21,395 INFO L82 PathProgramCache]: Analyzing trace with hash 1470117915, now seen corresponding path program 1 times [2019-09-16 17:07:21,395 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:21,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:21,401 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:21,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:21,401 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:21,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:21,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:07:21,524 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:07:21,524 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-16 17:07:21,525 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:21,526 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-16 17:07:21,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-16 17:07:21,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-16 17:07:21,527 INFO L87 Difference]: Start difference. First operand 43 states and 48 transitions. Second operand 5 states. [2019-09-16 17:07:21,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:21,620 INFO L93 Difference]: Finished difference Result 49 states and 55 transitions. [2019-09-16 17:07:21,621 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-16 17:07:21,621 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-09-16 17:07:21,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:21,623 INFO L225 Difference]: With dead ends: 49 [2019-09-16 17:07:21,623 INFO L226 Difference]: Without dead ends: 46 [2019-09-16 17:07:21,624 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 [2019-09-16 17:07:21,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-09-16 17:07:21,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 44. [2019-09-16 17:07:21,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2019-09-16 17:07:21,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 49 transitions. [2019-09-16 17:07:21,632 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 49 transitions. Word has length 32 [2019-09-16 17:07:21,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:21,632 INFO L475 AbstractCegarLoop]: Abstraction has 44 states and 49 transitions. [2019-09-16 17:07:21,632 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-16 17:07:21,633 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions. [2019-09-16 17:07:21,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-09-16 17:07:21,634 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:21,634 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] [2019-09-16 17:07:21,635 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:21,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:21,635 INFO L82 PathProgramCache]: Analyzing trace with hash 2051310963, now seen corresponding path program 1 times [2019-09-16 17:07:21,635 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:21,639 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:21,640 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:21,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:21,640 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:21,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:21,780 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-09-16 17:07:21,781 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:07:21,781 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-16 17:07:21,781 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:21,782 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-16 17:07:21,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-16 17:07:21,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-09-16 17:07:21,782 INFO L87 Difference]: Start difference. First operand 44 states and 49 transitions. Second operand 4 states. [2019-09-16 17:07:21,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:21,839 INFO L93 Difference]: Finished difference Result 54 states and 61 transitions. [2019-09-16 17:07:21,839 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-16 17:07:21,840 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2019-09-16 17:07:21,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:21,842 INFO L225 Difference]: With dead ends: 54 [2019-09-16 17:07:21,843 INFO L226 Difference]: Without dead ends: 54 [2019-09-16 17:07:21,843 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 [2019-09-16 17:07:21,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2019-09-16 17:07:21,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 45. [2019-09-16 17:07:21,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-09-16 17:07:21,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 50 transitions. [2019-09-16 17:07:21,851 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 50 transitions. Word has length 40 [2019-09-16 17:07:21,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:21,852 INFO L475 AbstractCegarLoop]: Abstraction has 45 states and 50 transitions. [2019-09-16 17:07:21,852 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-16 17:07:21,852 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 50 transitions. [2019-09-16 17:07:21,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-09-16 17:07:21,854 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:21,854 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] [2019-09-16 17:07:21,854 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:21,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:21,855 INFO L82 PathProgramCache]: Analyzing trace with hash -121828803, now seen corresponding path program 1 times [2019-09-16 17:07:21,855 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:21,858 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:21,859 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:21,859 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:21,859 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:21,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:21,973 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-09-16 17:07:21,973 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-16 17:07:21,974 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-16 17:07:21,975 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 49 with the following transitions: [2019-09-16 17:07:21,977 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] [2019-09-16 17:07:22,034 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-16 17:07:22,034 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-16 17:07:22,105 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-16 17:07:22,107 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. [2019-09-16 17:07:22,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:22,111 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-16 17:07:22,166 INFO L227 lantSequenceWeakener]: Weakened 8 states. On average, predicates are now at 86.04% of their original sizes. [2019-09-16 17:07:22,167 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-16 17:07:22,196 INFO L420 sIntCurrentIteration]: We unified 47 AI predicates to 47 [2019-09-16 17:07:22,197 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-16 17:07:22,197 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-16 17:07:22,198 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2019-09-16 17:07:22,198 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:22,198 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-16 17:07:22,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-16 17:07:22,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-16 17:07:22,202 INFO L87 Difference]: Start difference. First operand 45 states and 50 transitions. Second operand 6 states. [2019-09-16 17:07:22,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:22,223 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2019-09-16 17:07:22,223 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-16 17:07:22,223 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 48 [2019-09-16 17:07:22,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:22,224 INFO L225 Difference]: With dead ends: 10 [2019-09-16 17:07:22,224 INFO L226 Difference]: Without dead ends: 0 [2019-09-16 17:07:22,225 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 [2019-09-16 17:07:22,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-16 17:07:22,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-16 17:07:22,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-16 17:07:22,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-16 17:07:22,226 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 48 [2019-09-16 17:07:22,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:22,227 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-16 17:07:22,227 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-16 17:07:22,227 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-16 17:07:22,227 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-16 17:07:22,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 05:07:22 BoogieIcfgContainer [2019-09-16 17:07:22,233 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-16 17:07:22,236 INFO L168 Benchmark]: Toolchain (without parser) took 2619.72 ms. Allocated memory was 132.1 MB in the beginning and 221.2 MB in the end (delta: 89.1 MB). Free memory was 85.1 MB in the beginning and 141.0 MB in the end (delta: -55.9 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. [2019-09-16 17:07:22,238 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 132.1 MB. Free memory was 105.0 MB in the beginning and 104.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-16 17:07:22,239 INFO L168 Benchmark]: CACSL2BoogieTranslator took 615.47 ms. Allocated memory was 132.1 MB in the beginning and 198.7 MB in the end (delta: 66.6 MB). Free memory was 84.9 MB in the beginning and 160.2 MB in the end (delta: -75.4 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. [2019-09-16 17:07:22,240 INFO L168 Benchmark]: Boogie Preprocessor took 76.50 ms. Allocated memory is still 198.7 MB. Free memory was 160.2 MB in the beginning and 157.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 7.1 GB. [2019-09-16 17:07:22,241 INFO L168 Benchmark]: RCFGBuilder took 663.77 ms. Allocated memory is still 198.7 MB. Free memory was 157.2 MB in the beginning and 109.2 MB in the end (delta: 48.0 MB). Peak memory consumption was 48.0 MB. Max. memory is 7.1 GB. [2019-09-16 17:07:22,242 INFO L168 Benchmark]: TraceAbstraction took 1259.68 ms. Allocated memory was 198.7 MB in the beginning and 221.2 MB in the end (delta: 22.5 MB). Free memory was 109.2 MB in the beginning and 141.0 MB in the end (delta: -31.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-16 17:07:22,246 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 132.1 MB. Free memory was 105.0 MB in the beginning and 104.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 615.47 ms. Allocated memory was 132.1 MB in the beginning and 198.7 MB in the end (delta: 66.6 MB). Free memory was 84.9 MB in the beginning and 160.2 MB in the end (delta: -75.4 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 76.50 ms. Allocated memory is still 198.7 MB. Free memory was 160.2 MB in the beginning and 157.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 663.77 ms. Allocated memory is still 198.7 MB. Free memory was 157.2 MB in the beginning and 109.2 MB in the end (delta: 48.0 MB). Peak memory consumption was 48.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1259.68 ms. Allocated memory was 198.7 MB in the beginning and 221.2 MB in the end (delta: 22.5 MB). Free memory was 109.2 MB in the beginning and 141.0 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, 1.1s 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: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 11 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s 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...