/usr/bin/java -ea -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/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/list-simple/sll2n_remove_all.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-18 00:24:52,278 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-18 00:24:52,281 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-18 00:24:52,294 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-18 00:24:52,294 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-18 00:24:52,296 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-18 00:24:52,297 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-18 00:24:52,299 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-18 00:24:52,301 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-18 00:24:52,302 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-18 00:24:52,303 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-18 00:24:52,305 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-18 00:24:52,305 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-18 00:24:52,306 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-18 00:24:52,308 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-18 00:24:52,309 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-18 00:24:52,310 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-18 00:24:52,311 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-18 00:24:52,313 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-18 00:24:52,315 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-18 00:24:52,317 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-18 00:24:52,321 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-18 00:24:52,323 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-18 00:24:52,325 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-18 00:24:52,327 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-18 00:24:52,330 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-18 00:24:52,331 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-18 00:24:52,332 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-18 00:24:52,332 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-18 00:24:52,333 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-18 00:24:52,334 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-18 00:24:52,335 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-18 00:24:52,336 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-18 00:24:52,337 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-18 00:24:52,338 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-18 00:24:52,339 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-18 00:24:52,341 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-18 00:24:52,341 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-18 00:24:52,342 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-18 00:24:52,343 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-18 00:24:52,345 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-18 00:24:52,346 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-18 00:24:52,366 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-18 00:24:52,366 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-18 00:24:52,368 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-18 00:24:52,369 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-18 00:24:52,369 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-18 00:24:52,369 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-18 00:24:52,369 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-18 00:24:52,370 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-18 00:24:52,370 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-18 00:24:52,370 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-18 00:24:52,371 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-18 00:24:52,371 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-18 00:24:52,372 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-18 00:24:52,372 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-18 00:24:52,372 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-18 00:24:52,373 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-18 00:24:52,373 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-18 00:24:52,373 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-18 00:24:52,373 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 00:24:52,373 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-18 00:24:52,374 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-18 00:24:52,374 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-18 00:24:52,374 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-18 00:24:52,676 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-18 00:24:52,690 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-18 00:24:52,694 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-18 00:24:52,696 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-18 00:24:52,696 INFO L275 PluginConnector]: CDTParser initialized [2020-07-18 00:24:52,697 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/sll2n_remove_all.i [2020-07-18 00:24:52,776 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf8a82403/5ea2cb028d2942808f1080ec513a98f7/FLAG00226b885 [2020-07-18 00:24:53,294 INFO L306 CDTParser]: Found 1 translation units. [2020-07-18 00:24:53,295 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/sll2n_remove_all.i [2020-07-18 00:24:53,324 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf8a82403/5ea2cb028d2942808f1080ec513a98f7/FLAG00226b885 [2020-07-18 00:24:53,605 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf8a82403/5ea2cb028d2942808f1080ec513a98f7 [2020-07-18 00:24:53,617 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-18 00:24:53,620 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-18 00:24:53,622 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-18 00:24:53,624 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-18 00:24:53,628 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-18 00:24:53,631 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:24:53" (1/1) ... [2020-07-18 00:24:53,635 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5162972a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:24:53, skipping insertion in model container [2020-07-18 00:24:53,635 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:24:53" (1/1) ... [2020-07-18 00:24:53,644 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-18 00:24:53,706 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-18 00:24:54,212 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 00:24:54,227 INFO L203 MainTranslator]: Completed pre-run [2020-07-18 00:24:54,274 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 00:24:54,339 INFO L208 MainTranslator]: Completed translation [2020-07-18 00:24:54,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:24:54 WrapperNode [2020-07-18 00:24:54,339 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-18 00:24:54,340 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-18 00:24:54,341 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-18 00:24:54,341 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-18 00:24:54,355 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:24:54" (1/1) ... [2020-07-18 00:24:54,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:24:54" (1/1) ... [2020-07-18 00:24:54,373 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:24:54" (1/1) ... [2020-07-18 00:24:54,374 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:24:54" (1/1) ... [2020-07-18 00:24:54,396 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:24:54" (1/1) ... [2020-07-18 00:24:54,402 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:24:54" (1/1) ... [2020-07-18 00:24:54,406 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:24:54" (1/1) ... [2020-07-18 00:24:54,418 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-18 00:24:54,419 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-18 00:24:54,419 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-18 00:24:54,420 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-18 00:24:54,426 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:24:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 00:24:54,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-18 00:24:54,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-18 00:24:54,486 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-07-18 00:24:54,486 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-07-18 00:24:54,486 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2020-07-18 00:24:54,486 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2020-07-18 00:24:54,486 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_create [2020-07-18 00:24:54,486 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_remove_first [2020-07-18 00:24:54,487 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-18 00:24:54,487 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-18 00:24:54,487 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-07-18 00:24:54,487 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-07-18 00:24:54,487 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-07-18 00:24:54,487 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-07-18 00:24:54,487 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-07-18 00:24:54,488 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-07-18 00:24:54,488 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-07-18 00:24:54,488 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-07-18 00:24:54,488 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-07-18 00:24:54,488 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-07-18 00:24:54,489 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-07-18 00:24:54,494 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-07-18 00:24:54,495 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-07-18 00:24:54,495 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-07-18 00:24:54,495 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-07-18 00:24:54,497 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-07-18 00:24:54,497 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-07-18 00:24:54,497 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-07-18 00:24:54,497 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-07-18 00:24:54,498 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-07-18 00:24:54,498 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-07-18 00:24:54,498 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-07-18 00:24:54,498 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-07-18 00:24:54,499 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-07-18 00:24:54,499 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-07-18 00:24:54,499 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-07-18 00:24:54,499 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-07-18 00:24:54,499 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-07-18 00:24:54,499 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-07-18 00:24:54,500 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-07-18 00:24:54,500 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-07-18 00:24:54,500 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-07-18 00:24:54,500 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-07-18 00:24:54,500 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-07-18 00:24:54,500 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-07-18 00:24:54,500 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-07-18 00:24:54,501 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-07-18 00:24:54,501 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-07-18 00:24:54,501 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-07-18 00:24:54,501 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-07-18 00:24:54,501 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-07-18 00:24:54,501 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-07-18 00:24:54,501 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-07-18 00:24:54,501 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-07-18 00:24:54,502 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-07-18 00:24:54,502 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-07-18 00:24:54,502 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-07-18 00:24:54,502 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-07-18 00:24:54,502 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-07-18 00:24:54,502 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-07-18 00:24:54,502 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-07-18 00:24:54,502 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-07-18 00:24:54,502 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-18 00:24:54,502 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-07-18 00:24:54,503 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-07-18 00:24:54,503 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-18 00:24:54,503 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-07-18 00:24:54,503 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-07-18 00:24:54,503 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-07-18 00:24:54,503 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-07-18 00:24:54,503 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-07-18 00:24:54,503 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-18 00:24:54,503 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-07-18 00:24:54,503 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-07-18 00:24:54,504 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-07-18 00:24:54,504 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-18 00:24:54,504 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-07-18 00:24:54,504 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-07-18 00:24:54,504 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-07-18 00:24:54,504 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-07-18 00:24:54,505 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-07-18 00:24:54,505 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-07-18 00:24:54,505 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-07-18 00:24:54,505 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-07-18 00:24:54,505 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-07-18 00:24:54,505 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-07-18 00:24:54,505 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-07-18 00:24:54,505 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-07-18 00:24:54,506 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-07-18 00:24:54,506 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-07-18 00:24:54,506 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-07-18 00:24:54,506 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-07-18 00:24:54,506 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-07-18 00:24:54,506 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-07-18 00:24:54,506 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-07-18 00:24:54,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-07-18 00:24:54,507 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-07-18 00:24:54,507 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-07-18 00:24:54,507 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-07-18 00:24:54,507 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-07-18 00:24:54,507 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-07-18 00:24:54,507 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-07-18 00:24:54,508 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-07-18 00:24:54,508 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-07-18 00:24:54,508 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-07-18 00:24:54,508 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-07-18 00:24:54,508 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-07-18 00:24:54,508 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-07-18 00:24:54,508 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-07-18 00:24:54,508 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-07-18 00:24:54,508 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-07-18 00:24:54,509 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-07-18 00:24:54,509 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-07-18 00:24:54,509 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-07-18 00:24:54,509 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-07-18 00:24:54,509 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2020-07-18 00:24:54,509 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2020-07-18 00:24:54,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-18 00:24:54,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-18 00:24:54,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-18 00:24:54,510 INFO L130 BoogieDeclarations]: Found specification of procedure sll_create [2020-07-18 00:24:54,510 INFO L130 BoogieDeclarations]: Found specification of procedure sll_remove_first [2020-07-18 00:24:54,510 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-18 00:24:54,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-18 00:24:54,510 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-18 00:24:54,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-18 00:24:54,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-07-18 00:24:54,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-18 00:24:54,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-18 00:24:54,511 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-18 00:24:54,842 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2020-07-18 00:24:55,197 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-18 00:24:55,197 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-07-18 00:24:55,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:24:55 BoogieIcfgContainer [2020-07-18 00:24:55,203 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-18 00:24:55,204 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-18 00:24:55,204 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-18 00:24:55,208 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-18 00:24:55,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.07 12:24:53" (1/3) ... [2020-07-18 00:24:55,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@500bfc0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:24:55, skipping insertion in model container [2020-07-18 00:24:55,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:24:54" (2/3) ... [2020-07-18 00:24:55,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@500bfc0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:24:55, skipping insertion in model container [2020-07-18 00:24:55,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:24:55" (3/3) ... [2020-07-18 00:24:55,213 INFO L109 eAbstractionObserver]: Analyzing ICFG sll2n_remove_all.i [2020-07-18 00:24:55,226 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-18 00:24:55,236 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-18 00:24:55,253 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-18 00:24:55,281 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-18 00:24:55,281 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-18 00:24:55,282 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-18 00:24:55,282 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-18 00:24:55,282 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-18 00:24:55,282 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-18 00:24:55,283 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-18 00:24:55,283 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-18 00:24:55,300 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states. [2020-07-18 00:24:55,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-07-18 00:24:55,313 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:24:55,315 INFO L422 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] [2020-07-18 00:24:55,316 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:24:55,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:24:55,323 INFO L82 PathProgramCache]: Analyzing trace with hash 1551017908, now seen corresponding path program 1 times [2020-07-18 00:24:55,333 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:24:55,334 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [125578113] [2020-07-18 00:24:55,334 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:24:55,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:24:55,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:24:55,678 INFO L280 TraceCheckUtils]: 0: Hoare triple {94#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {78#true} is VALID [2020-07-18 00:24:55,678 INFO L280 TraceCheckUtils]: 1: Hoare triple {78#true} #valid := #valid[0 := 0]; {78#true} is VALID [2020-07-18 00:24:55,679 INFO L280 TraceCheckUtils]: 2: Hoare triple {78#true} assume 0 < #StackHeapBarrier; {78#true} is VALID [2020-07-18 00:24:55,680 INFO L280 TraceCheckUtils]: 3: Hoare triple {78#true} assume true; {78#true} is VALID [2020-07-18 00:24:55,680 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {78#true} {78#true} #120#return; {78#true} is VALID [2020-07-18 00:24:55,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:24:55,733 INFO L280 TraceCheckUtils]: 0: Hoare triple {95#(and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} ~len := #in~len; {78#true} is VALID [2020-07-18 00:24:55,734 INFO L280 TraceCheckUtils]: 1: Hoare triple {78#true} ~data := #in~data; {78#true} is VALID [2020-07-18 00:24:55,734 INFO L280 TraceCheckUtils]: 2: Hoare triple {78#true} ~head~0.base, ~head~0.offset := 0, 0; {78#true} is VALID [2020-07-18 00:24:55,734 INFO L280 TraceCheckUtils]: 3: Hoare triple {78#true} assume !(~len > 0); {78#true} is VALID [2020-07-18 00:24:55,735 INFO L280 TraceCheckUtils]: 4: Hoare triple {78#true} #res.base, #res.offset := ~head~0.base, ~head~0.offset; {78#true} is VALID [2020-07-18 00:24:55,735 INFO L280 TraceCheckUtils]: 5: Hoare triple {78#true} assume true; {78#true} is VALID [2020-07-18 00:24:55,737 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {78#true} {85#(<= 2 main_~len~0)} #116#return; {85#(<= 2 main_~len~0)} is VALID [2020-07-18 00:24:55,739 INFO L263 TraceCheckUtils]: 0: Hoare triple {78#true} call ULTIMATE.init(); {94#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-18 00:24:55,740 INFO L280 TraceCheckUtils]: 1: Hoare triple {94#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {78#true} is VALID [2020-07-18 00:24:55,740 INFO L280 TraceCheckUtils]: 2: Hoare triple {78#true} #valid := #valid[0 := 0]; {78#true} is VALID [2020-07-18 00:24:55,740 INFO L280 TraceCheckUtils]: 3: Hoare triple {78#true} assume 0 < #StackHeapBarrier; {78#true} is VALID [2020-07-18 00:24:55,741 INFO L280 TraceCheckUtils]: 4: Hoare triple {78#true} assume true; {78#true} is VALID [2020-07-18 00:24:55,741 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {78#true} {78#true} #120#return; {78#true} is VALID [2020-07-18 00:24:55,742 INFO L263 TraceCheckUtils]: 6: Hoare triple {78#true} call #t~ret11 := main(); {78#true} is VALID [2020-07-18 00:24:55,743 INFO L280 TraceCheckUtils]: 7: Hoare triple {78#true} ~len~0 := 2; {85#(<= 2 main_~len~0)} is VALID [2020-07-18 00:24:55,745 INFO L280 TraceCheckUtils]: 8: Hoare triple {85#(<= 2 main_~len~0)} ~data~0 := 1; {85#(<= 2 main_~len~0)} is VALID [2020-07-18 00:24:55,747 INFO L280 TraceCheckUtils]: 9: Hoare triple {85#(<= 2 main_~len~0)} SUMMARY for call ~#s~0.base, ~#s~0.offset := #Ultimate.allocOnStack(4); srcloc: L589 {85#(<= 2 main_~len~0)} is VALID [2020-07-18 00:24:55,750 INFO L263 TraceCheckUtils]: 10: Hoare triple {85#(<= 2 main_~len~0)} call #t~ret8.base, #t~ret8.offset := sll_create(~len~0, ~data~0); {95#(and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} is VALID [2020-07-18 00:24:55,751 INFO L280 TraceCheckUtils]: 11: Hoare triple {95#(and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} ~len := #in~len; {78#true} is VALID [2020-07-18 00:24:55,751 INFO L280 TraceCheckUtils]: 12: Hoare triple {78#true} ~data := #in~data; {78#true} is VALID [2020-07-18 00:24:55,751 INFO L280 TraceCheckUtils]: 13: Hoare triple {78#true} ~head~0.base, ~head~0.offset := 0, 0; {78#true} is VALID [2020-07-18 00:24:55,752 INFO L280 TraceCheckUtils]: 14: Hoare triple {78#true} assume !(~len > 0); {78#true} is VALID [2020-07-18 00:24:55,752 INFO L280 TraceCheckUtils]: 15: Hoare triple {78#true} #res.base, #res.offset := ~head~0.base, ~head~0.offset; {78#true} is VALID [2020-07-18 00:24:55,752 INFO L280 TraceCheckUtils]: 16: Hoare triple {78#true} assume true; {78#true} is VALID [2020-07-18 00:24:55,755 INFO L275 TraceCheckUtils]: 17: Hoare quadruple {78#true} {85#(<= 2 main_~len~0)} #116#return; {85#(<= 2 main_~len~0)} is VALID [2020-07-18 00:24:55,756 INFO L280 TraceCheckUtils]: 18: Hoare triple {85#(<= 2 main_~len~0)} SUMMARY for call write~init~$Pointer$(#t~ret8.base, #t~ret8.offset, ~#s~0.base, ~#s~0.offset, 4); srcloc: L589-2 {85#(<= 2 main_~len~0)} is VALID [2020-07-18 00:24:55,759 INFO L280 TraceCheckUtils]: 19: Hoare triple {85#(<= 2 main_~len~0)} havoc #t~ret8.base, #t~ret8.offset; {85#(<= 2 main_~len~0)} is VALID [2020-07-18 00:24:55,760 INFO L280 TraceCheckUtils]: 20: Hoare triple {85#(<= 2 main_~len~0)} havoc ~i~0; {85#(<= 2 main_~len~0)} is VALID [2020-07-18 00:24:55,762 INFO L280 TraceCheckUtils]: 21: Hoare triple {85#(<= 2 main_~len~0)} ~i~0 := ~len~0 - 1; {93#(<= 1 main_~i~0)} is VALID [2020-07-18 00:24:55,763 INFO L280 TraceCheckUtils]: 22: Hoare triple {93#(<= 1 main_~i~0)} assume !(~i~0 >= 0); {79#false} is VALID [2020-07-18 00:24:55,764 INFO L280 TraceCheckUtils]: 23: Hoare triple {79#false} SUMMARY for call #t~mem10.base, #t~mem10.offset := read~$Pointer$(~#s~0.base, ~#s~0.offset, 4); srcloc: L591-6 {79#false} is VALID [2020-07-18 00:24:55,764 INFO L280 TraceCheckUtils]: 24: Hoare triple {79#false} assume 0 != #t~mem10.base || 0 != #t~mem10.offset; {79#false} is VALID [2020-07-18 00:24:55,764 INFO L280 TraceCheckUtils]: 25: Hoare triple {79#false} havoc #t~mem10.base, #t~mem10.offset; {79#false} is VALID [2020-07-18 00:24:55,765 INFO L280 TraceCheckUtils]: 26: Hoare triple {79#false} assume !false; {79#false} is VALID [2020-07-18 00:24:55,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 00:24:55,776 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:24:55,778 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [125578113] [2020-07-18 00:24:55,781 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:24:55,781 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-18 00:24:55,782 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340261295] [2020-07-18 00:24:55,789 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2020-07-18 00:24:55,792 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:24:55,797 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-18 00:24:55,848 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:24:55,849 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-18 00:24:55,849 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 00:24:55,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-18 00:24:55,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-18 00:24:55,862 INFO L87 Difference]: Start difference. First operand 75 states. Second operand 6 states. [2020-07-18 00:24:56,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:24:56,925 INFO L93 Difference]: Finished difference Result 121 states and 134 transitions. [2020-07-18 00:24:56,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-18 00:24:56,926 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2020-07-18 00:24:56,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 00:24:56,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-18 00:24:56,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 134 transitions. [2020-07-18 00:24:56,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-18 00:24:56,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 134 transitions. [2020-07-18 00:24:56,951 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 134 transitions. [2020-07-18 00:24:57,144 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 134 edges. 134 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:24:57,161 INFO L225 Difference]: With dead ends: 121 [2020-07-18 00:24:57,161 INFO L226 Difference]: Without dead ends: 70 [2020-07-18 00:24:57,165 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-07-18 00:24:57,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-07-18 00:24:57,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 62. [2020-07-18 00:24:57,294 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 00:24:57,295 INFO L82 GeneralOperation]: Start isEquivalent. First operand 70 states. Second operand 62 states. [2020-07-18 00:24:57,295 INFO L74 IsIncluded]: Start isIncluded. First operand 70 states. Second operand 62 states. [2020-07-18 00:24:57,296 INFO L87 Difference]: Start difference. First operand 70 states. Second operand 62 states. [2020-07-18 00:24:57,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:24:57,304 INFO L93 Difference]: Finished difference Result 70 states and 74 transitions. [2020-07-18 00:24:57,305 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 74 transitions. [2020-07-18 00:24:57,306 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:24:57,306 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:24:57,307 INFO L74 IsIncluded]: Start isIncluded. First operand 62 states. Second operand 70 states. [2020-07-18 00:24:57,307 INFO L87 Difference]: Start difference. First operand 62 states. Second operand 70 states. [2020-07-18 00:24:57,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:24:57,314 INFO L93 Difference]: Finished difference Result 70 states and 74 transitions. [2020-07-18 00:24:57,314 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 74 transitions. [2020-07-18 00:24:57,315 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:24:57,316 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:24:57,316 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 00:24:57,316 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 00:24:57,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-07-18 00:24:57,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 63 transitions. [2020-07-18 00:24:57,322 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 63 transitions. Word has length 27 [2020-07-18 00:24:57,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 00:24:57,323 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 63 transitions. [2020-07-18 00:24:57,323 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-18 00:24:57,323 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 62 states and 63 transitions. [2020-07-18 00:24:57,417 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 63 edges. 63 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:24:57,418 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 63 transitions. [2020-07-18 00:24:57,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-07-18 00:24:57,420 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:24:57,420 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 00:24:57,421 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-18 00:24:57,421 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:24:57,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:24:57,422 INFO L82 PathProgramCache]: Analyzing trace with hash 624461213, now seen corresponding path program 1 times [2020-07-18 00:24:57,422 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:24:57,422 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [613381908] [2020-07-18 00:24:57,422 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:24:57,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:24:57,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:24:57,540 INFO L280 TraceCheckUtils]: 0: Hoare triple {638#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {611#true} is VALID [2020-07-18 00:24:57,541 INFO L280 TraceCheckUtils]: 1: Hoare triple {611#true} #valid := #valid[0 := 0]; {611#true} is VALID [2020-07-18 00:24:57,541 INFO L280 TraceCheckUtils]: 2: Hoare triple {611#true} assume 0 < #StackHeapBarrier; {611#true} is VALID [2020-07-18 00:24:57,542 INFO L280 TraceCheckUtils]: 3: Hoare triple {611#true} assume true; {611#true} is VALID [2020-07-18 00:24:57,542 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {611#true} {611#true} #120#return; {611#true} is VALID [2020-07-18 00:24:57,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:24:57,614 INFO L280 TraceCheckUtils]: 0: Hoare triple {639#(and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} ~len := #in~len; {640#(= |sll_create_#in~len| sll_create_~len)} is VALID [2020-07-18 00:24:57,615 INFO L280 TraceCheckUtils]: 1: Hoare triple {640#(= |sll_create_#in~len| sll_create_~len)} ~data := #in~data; {640#(= |sll_create_#in~len| sll_create_~len)} is VALID [2020-07-18 00:24:57,616 INFO L280 TraceCheckUtils]: 2: Hoare triple {640#(= |sll_create_#in~len| sll_create_~len)} ~head~0.base, ~head~0.offset := 0, 0; {640#(= |sll_create_#in~len| sll_create_~len)} is VALID [2020-07-18 00:24:57,617 INFO L280 TraceCheckUtils]: 3: Hoare triple {640#(= |sll_create_#in~len| sll_create_~len)} assume !(~len > 0); {641#(<= |sll_create_#in~len| 0)} is VALID [2020-07-18 00:24:57,617 INFO L280 TraceCheckUtils]: 4: Hoare triple {641#(<= |sll_create_#in~len| 0)} #res.base, #res.offset := ~head~0.base, ~head~0.offset; {641#(<= |sll_create_#in~len| 0)} is VALID [2020-07-18 00:24:57,618 INFO L280 TraceCheckUtils]: 5: Hoare triple {641#(<= |sll_create_#in~len| 0)} assume true; {641#(<= |sll_create_#in~len| 0)} is VALID [2020-07-18 00:24:57,620 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {641#(<= |sll_create_#in~len| 0)} {618#(<= 2 main_~len~0)} #116#return; {612#false} is VALID [2020-07-18 00:24:57,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:24:57,653 INFO L280 TraceCheckUtils]: 0: Hoare triple {642#(and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} ~head.base, ~head.offset := #in~head.base, #in~head.offset; {611#true} is VALID [2020-07-18 00:24:57,654 INFO L280 TraceCheckUtils]: 1: Hoare triple {611#true} SUMMARY for call #t~mem5.base, #t~mem5.offset := read~$Pointer$(~head.base, ~head.offset, 4); srcloc: L582 {611#true} is VALID [2020-07-18 00:24:57,654 INFO L280 TraceCheckUtils]: 2: Hoare triple {611#true} SUMMARY for call #t~mem6.base, #t~mem6.offset := read~$Pointer$(#t~mem5.base, 4 + #t~mem5.offset, 4); srcloc: L582-1 {611#true} is VALID [2020-07-18 00:24:57,654 INFO L280 TraceCheckUtils]: 3: Hoare triple {611#true} ~temp~1.base, ~temp~1.offset := #t~mem6.base, #t~mem6.offset; {611#true} is VALID [2020-07-18 00:24:57,655 INFO L280 TraceCheckUtils]: 4: Hoare triple {611#true} havoc #t~mem5.base, #t~mem5.offset; {611#true} is VALID [2020-07-18 00:24:57,655 INFO L280 TraceCheckUtils]: 5: Hoare triple {611#true} havoc #t~mem6.base, #t~mem6.offset; {611#true} is VALID [2020-07-18 00:24:57,655 INFO L280 TraceCheckUtils]: 6: Hoare triple {611#true} SUMMARY for call #t~mem7.base, #t~mem7.offset := read~$Pointer$(~head.base, ~head.offset, 4); srcloc: L583 {611#true} is VALID [2020-07-18 00:24:57,656 INFO L280 TraceCheckUtils]: 7: Hoare triple {611#true} SUMMARY for call ULTIMATE.dealloc(#t~mem7.base, #t~mem7.offset); srcloc: L583-1 {611#true} is VALID [2020-07-18 00:24:57,656 INFO L280 TraceCheckUtils]: 8: Hoare triple {611#true} havoc #t~mem7.base, #t~mem7.offset; {611#true} is VALID [2020-07-18 00:24:57,656 INFO L280 TraceCheckUtils]: 9: Hoare triple {611#true} SUMMARY for call write~$Pointer$(~temp~1.base, ~temp~1.offset, ~head.base, ~head.offset, 4); srcloc: L584 {611#true} is VALID [2020-07-18 00:24:57,657 INFO L280 TraceCheckUtils]: 10: Hoare triple {611#true} assume true; {611#true} is VALID [2020-07-18 00:24:57,657 INFO L275 TraceCheckUtils]: 11: Hoare quadruple {611#true} {612#false} #118#return; {612#false} is VALID [2020-07-18 00:24:57,658 INFO L263 TraceCheckUtils]: 0: Hoare triple {611#true} call ULTIMATE.init(); {638#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-18 00:24:57,659 INFO L280 TraceCheckUtils]: 1: Hoare triple {638#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {611#true} is VALID [2020-07-18 00:24:57,659 INFO L280 TraceCheckUtils]: 2: Hoare triple {611#true} #valid := #valid[0 := 0]; {611#true} is VALID [2020-07-18 00:24:57,660 INFO L280 TraceCheckUtils]: 3: Hoare triple {611#true} assume 0 < #StackHeapBarrier; {611#true} is VALID [2020-07-18 00:24:57,660 INFO L280 TraceCheckUtils]: 4: Hoare triple {611#true} assume true; {611#true} is VALID [2020-07-18 00:24:57,660 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {611#true} {611#true} #120#return; {611#true} is VALID [2020-07-18 00:24:57,660 INFO L263 TraceCheckUtils]: 6: Hoare triple {611#true} call #t~ret11 := main(); {611#true} is VALID [2020-07-18 00:24:57,661 INFO L280 TraceCheckUtils]: 7: Hoare triple {611#true} ~len~0 := 2; {618#(<= 2 main_~len~0)} is VALID [2020-07-18 00:24:57,662 INFO L280 TraceCheckUtils]: 8: Hoare triple {618#(<= 2 main_~len~0)} ~data~0 := 1; {618#(<= 2 main_~len~0)} is VALID [2020-07-18 00:24:57,663 INFO L280 TraceCheckUtils]: 9: Hoare triple {618#(<= 2 main_~len~0)} SUMMARY for call ~#s~0.base, ~#s~0.offset := #Ultimate.allocOnStack(4); srcloc: L589 {618#(<= 2 main_~len~0)} is VALID [2020-07-18 00:24:57,665 INFO L263 TraceCheckUtils]: 10: Hoare triple {618#(<= 2 main_~len~0)} call #t~ret8.base, #t~ret8.offset := sll_create(~len~0, ~data~0); {639#(and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} is VALID [2020-07-18 00:24:57,666 INFO L280 TraceCheckUtils]: 11: Hoare triple {639#(and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} ~len := #in~len; {640#(= |sll_create_#in~len| sll_create_~len)} is VALID [2020-07-18 00:24:57,667 INFO L280 TraceCheckUtils]: 12: Hoare triple {640#(= |sll_create_#in~len| sll_create_~len)} ~data := #in~data; {640#(= |sll_create_#in~len| sll_create_~len)} is VALID [2020-07-18 00:24:57,667 INFO L280 TraceCheckUtils]: 13: Hoare triple {640#(= |sll_create_#in~len| sll_create_~len)} ~head~0.base, ~head~0.offset := 0, 0; {640#(= |sll_create_#in~len| sll_create_~len)} is VALID [2020-07-18 00:24:57,668 INFO L280 TraceCheckUtils]: 14: Hoare triple {640#(= |sll_create_#in~len| sll_create_~len)} assume !(~len > 0); {641#(<= |sll_create_#in~len| 0)} is VALID [2020-07-18 00:24:57,669 INFO L280 TraceCheckUtils]: 15: Hoare triple {641#(<= |sll_create_#in~len| 0)} #res.base, #res.offset := ~head~0.base, ~head~0.offset; {641#(<= |sll_create_#in~len| 0)} is VALID [2020-07-18 00:24:57,670 INFO L280 TraceCheckUtils]: 16: Hoare triple {641#(<= |sll_create_#in~len| 0)} assume true; {641#(<= |sll_create_#in~len| 0)} is VALID [2020-07-18 00:24:57,672 INFO L275 TraceCheckUtils]: 17: Hoare quadruple {641#(<= |sll_create_#in~len| 0)} {618#(<= 2 main_~len~0)} #116#return; {612#false} is VALID [2020-07-18 00:24:57,672 INFO L280 TraceCheckUtils]: 18: Hoare triple {612#false} SUMMARY for call write~init~$Pointer$(#t~ret8.base, #t~ret8.offset, ~#s~0.base, ~#s~0.offset, 4); srcloc: L589-2 {612#false} is VALID [2020-07-18 00:24:57,672 INFO L280 TraceCheckUtils]: 19: Hoare triple {612#false} havoc #t~ret8.base, #t~ret8.offset; {612#false} is VALID [2020-07-18 00:24:57,673 INFO L280 TraceCheckUtils]: 20: Hoare triple {612#false} havoc ~i~0; {612#false} is VALID [2020-07-18 00:24:57,673 INFO L280 TraceCheckUtils]: 21: Hoare triple {612#false} ~i~0 := ~len~0 - 1; {612#false} is VALID [2020-07-18 00:24:57,673 INFO L280 TraceCheckUtils]: 22: Hoare triple {612#false} assume !!(~i~0 >= 0); {612#false} is VALID [2020-07-18 00:24:57,674 INFO L263 TraceCheckUtils]: 23: Hoare triple {612#false} call sll_remove_first(~#s~0.base, ~#s~0.offset); {642#(and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} is VALID [2020-07-18 00:24:57,674 INFO L280 TraceCheckUtils]: 24: Hoare triple {642#(and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} ~head.base, ~head.offset := #in~head.base, #in~head.offset; {611#true} is VALID [2020-07-18 00:24:57,674 INFO L280 TraceCheckUtils]: 25: Hoare triple {611#true} SUMMARY for call #t~mem5.base, #t~mem5.offset := read~$Pointer$(~head.base, ~head.offset, 4); srcloc: L582 {611#true} is VALID [2020-07-18 00:24:57,675 INFO L280 TraceCheckUtils]: 26: Hoare triple {611#true} SUMMARY for call #t~mem6.base, #t~mem6.offset := read~$Pointer$(#t~mem5.base, 4 + #t~mem5.offset, 4); srcloc: L582-1 {611#true} is VALID [2020-07-18 00:24:57,675 INFO L280 TraceCheckUtils]: 27: Hoare triple {611#true} ~temp~1.base, ~temp~1.offset := #t~mem6.base, #t~mem6.offset; {611#true} is VALID [2020-07-18 00:24:57,675 INFO L280 TraceCheckUtils]: 28: Hoare triple {611#true} havoc #t~mem5.base, #t~mem5.offset; {611#true} is VALID [2020-07-18 00:24:57,676 INFO L280 TraceCheckUtils]: 29: Hoare triple {611#true} havoc #t~mem6.base, #t~mem6.offset; {611#true} is VALID [2020-07-18 00:24:57,676 INFO L280 TraceCheckUtils]: 30: Hoare triple {611#true} SUMMARY for call #t~mem7.base, #t~mem7.offset := read~$Pointer$(~head.base, ~head.offset, 4); srcloc: L583 {611#true} is VALID [2020-07-18 00:24:57,676 INFO L280 TraceCheckUtils]: 31: Hoare triple {611#true} SUMMARY for call ULTIMATE.dealloc(#t~mem7.base, #t~mem7.offset); srcloc: L583-1 {611#true} is VALID [2020-07-18 00:24:57,677 INFO L280 TraceCheckUtils]: 32: Hoare triple {611#true} havoc #t~mem7.base, #t~mem7.offset; {611#true} is VALID [2020-07-18 00:24:57,677 INFO L280 TraceCheckUtils]: 33: Hoare triple {611#true} SUMMARY for call write~$Pointer$(~temp~1.base, ~temp~1.offset, ~head.base, ~head.offset, 4); srcloc: L584 {611#true} is VALID [2020-07-18 00:24:57,677 INFO L280 TraceCheckUtils]: 34: Hoare triple {611#true} assume true; {611#true} is VALID [2020-07-18 00:24:57,678 INFO L275 TraceCheckUtils]: 35: Hoare quadruple {611#true} {612#false} #118#return; {612#false} is VALID [2020-07-18 00:24:57,678 INFO L280 TraceCheckUtils]: 36: Hoare triple {612#false} #t~post9 := ~i~0; {612#false} is VALID [2020-07-18 00:24:57,678 INFO L280 TraceCheckUtils]: 37: Hoare triple {612#false} ~i~0 := #t~post9 - 1; {612#false} is VALID [2020-07-18 00:24:57,679 INFO L280 TraceCheckUtils]: 38: Hoare triple {612#false} havoc #t~post9; {612#false} is VALID [2020-07-18 00:24:57,679 INFO L280 TraceCheckUtils]: 39: Hoare triple {612#false} assume !(~i~0 >= 0); {612#false} is VALID [2020-07-18 00:24:57,679 INFO L280 TraceCheckUtils]: 40: Hoare triple {612#false} SUMMARY for call #t~mem10.base, #t~mem10.offset := read~$Pointer$(~#s~0.base, ~#s~0.offset, 4); srcloc: L591-6 {612#false} is VALID [2020-07-18 00:24:57,679 INFO L280 TraceCheckUtils]: 41: Hoare triple {612#false} assume 0 != #t~mem10.base || 0 != #t~mem10.offset; {612#false} is VALID [2020-07-18 00:24:57,680 INFO L280 TraceCheckUtils]: 42: Hoare triple {612#false} havoc #t~mem10.base, #t~mem10.offset; {612#false} is VALID [2020-07-18 00:24:57,680 INFO L280 TraceCheckUtils]: 43: Hoare triple {612#false} assume !false; {612#false} is VALID [2020-07-18 00:24:57,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 00:24:57,945 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:24:57,946 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [613381908] [2020-07-18 00:24:57,946 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:24:57,946 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-07-18 00:24:57,946 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562424326] [2020-07-18 00:24:57,948 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 44 [2020-07-18 00:24:57,949 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:24:57,950 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 17 states. [2020-07-18 00:24:58,005 WARN L140 InductivityCheck]: Transition 651#(and (< main_~i~0 0) (or (not (= 0 (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|))) (not (= (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|) 0)))) ( _ , assume !false; , 612#false ) not inductive [2020-07-18 00:24:58,006 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-18 00:24:58,007 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: inductivity failed at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.InductivityCheck.evaluateResult(InductivityCheck.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.InductivityCheck.checkInductivity(InductivityCheck.java:103) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.InductivityCheck.(InductivityCheck.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.constructInterpolantAutomaton(BasicCegarLoop.java:583) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:455) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-18 00:24:58,013 INFO L168 Benchmark]: Toolchain (without parser) took 4394.16 ms. Allocated memory was 143.1 MB in the beginning and 246.9 MB in the end (delta: 103.8 MB). Free memory was 101.4 MB in the beginning and 171.2 MB in the end (delta: -69.8 MB). Peak memory consumption was 34.0 MB. Max. memory is 7.1 GB. [2020-07-18 00:24:58,014 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 143.1 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-18 00:24:58,015 INFO L168 Benchmark]: CACSL2BoogieTranslator took 718.36 ms. Allocated memory was 143.1 MB in the beginning and 202.9 MB in the end (delta: 59.8 MB). Free memory was 100.9 MB in the beginning and 168.2 MB in the end (delta: -67.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. [2020-07-18 00:24:58,016 INFO L168 Benchmark]: Boogie Preprocessor took 78.45 ms. Allocated memory is still 202.9 MB. Free memory was 168.2 MB in the beginning and 164.8 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. [2020-07-18 00:24:58,017 INFO L168 Benchmark]: RCFGBuilder took 783.60 ms. Allocated memory is still 202.9 MB. Free memory was 164.8 MB in the beginning and 105.4 MB in the end (delta: 59.4 MB). Peak memory consumption was 59.4 MB. Max. memory is 7.1 GB. [2020-07-18 00:24:58,018 INFO L168 Benchmark]: TraceAbstraction took 2806.02 ms. Allocated memory was 202.9 MB in the beginning and 246.9 MB in the end (delta: 44.0 MB). Free memory was 104.7 MB in the beginning and 171.2 MB in the end (delta: -66.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-18 00:24:58,022 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 143.1 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 718.36 ms. Allocated memory was 143.1 MB in the beginning and 202.9 MB in the end (delta: 59.8 MB). Free memory was 100.9 MB in the beginning and 168.2 MB in the end (delta: -67.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 78.45 ms. Allocated memory is still 202.9 MB. Free memory was 168.2 MB in the beginning and 164.8 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 783.60 ms. Allocated memory is still 202.9 MB. Free memory was 164.8 MB in the beginning and 105.4 MB in the end (delta: 59.4 MB). Peak memory consumption was 59.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2806.02 ms. Allocated memory was 202.9 MB in the beginning and 246.9 MB in the end (delta: 44.0 MB). Free memory was 104.7 MB in the beginning and 171.2 MB in the end (delta: -66.4 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: inductivity failed de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: inductivity failed: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.InductivityCheck.evaluateResult(InductivityCheck.java:142) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...