/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-ext3-properties/dll_nullified-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-18 00:25:01,355 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-18 00:25:01,358 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-18 00:25:01,371 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-18 00:25:01,371 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-18 00:25:01,372 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-18 00:25:01,373 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-18 00:25:01,375 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-18 00:25:01,377 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-18 00:25:01,378 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-18 00:25:01,379 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-18 00:25:01,380 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-18 00:25:01,380 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-18 00:25:01,381 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-18 00:25:01,382 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-18 00:25:01,384 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-18 00:25:01,384 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-18 00:25:01,385 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-18 00:25:01,387 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-18 00:25:01,390 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-18 00:25:01,391 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-18 00:25:01,392 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-18 00:25:01,394 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-18 00:25:01,394 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-18 00:25:01,397 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-18 00:25:01,397 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-18 00:25:01,398 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-18 00:25:01,398 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-18 00:25:01,399 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-18 00:25:01,400 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-18 00:25:01,400 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-18 00:25:01,401 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-18 00:25:01,402 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-18 00:25:01,403 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-18 00:25:01,404 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-18 00:25:01,404 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-18 00:25:01,404 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-18 00:25:01,405 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-18 00:25:01,405 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-18 00:25:01,406 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-18 00:25:01,406 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-18 00:25:01,407 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 00:25:01,417 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-18 00:25:01,417 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-18 00:25:01,418 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-18 00:25:01,418 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-18 00:25:01,419 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-18 00:25:01,419 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-18 00:25:01,419 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-18 00:25:01,419 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-18 00:25:01,419 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-18 00:25:01,420 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-18 00:25:01,420 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-18 00:25:01,420 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-18 00:25:01,420 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-18 00:25:01,420 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-18 00:25:01,421 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-18 00:25:01,421 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-18 00:25:01,421 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-18 00:25:01,421 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-18 00:25:01,421 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 00:25:01,421 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-18 00:25:01,422 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-18 00:25:01,422 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-18 00:25:01,422 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-18 00:25:01,711 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-18 00:25:01,729 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-18 00:25:01,732 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-18 00:25:01,734 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-18 00:25:01,734 INFO L275 PluginConnector]: CDTParser initialized [2020-07-18 00:25:01,735 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext3-properties/dll_nullified-1.i [2020-07-18 00:25:01,818 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/602b86c11/973481116ccb4df8b7fca0d761d7ab82/FLAG77555102c [2020-07-18 00:25:02,342 INFO L306 CDTParser]: Found 1 translation units. [2020-07-18 00:25:02,343 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-ext3-properties/dll_nullified-1.i [2020-07-18 00:25:02,356 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/602b86c11/973481116ccb4df8b7fca0d761d7ab82/FLAG77555102c [2020-07-18 00:25:02,652 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/602b86c11/973481116ccb4df8b7fca0d761d7ab82 [2020-07-18 00:25:02,662 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-18 00:25:02,666 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-18 00:25:02,669 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-18 00:25:02,669 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-18 00:25:02,673 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-18 00:25:02,676 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:25:02" (1/1) ... [2020-07-18 00:25:02,680 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@494b592e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:25:02, skipping insertion in model container [2020-07-18 00:25:02,680 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:25:02" (1/1) ... [2020-07-18 00:25:02,689 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-18 00:25:02,743 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-18 00:25:03,175 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 00:25:03,193 INFO L203 MainTranslator]: Completed pre-run [2020-07-18 00:25:03,264 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 00:25:03,319 INFO L208 MainTranslator]: Completed translation [2020-07-18 00:25:03,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:25:03 WrapperNode [2020-07-18 00:25:03,319 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-18 00:25:03,320 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-18 00:25:03,320 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-18 00:25:03,320 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-18 00:25:03,334 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:25:03" (1/1) ... [2020-07-18 00:25:03,335 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:25:03" (1/1) ... [2020-07-18 00:25:03,351 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:25:03" (1/1) ... [2020-07-18 00:25:03,352 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:25:03" (1/1) ... [2020-07-18 00:25:03,377 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:25:03" (1/1) ... [2020-07-18 00:25:03,388 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:25:03" (1/1) ... [2020-07-18 00:25:03,391 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:25:03" (1/1) ... [2020-07-18 00:25:03,404 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-18 00:25:03,406 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-18 00:25:03,407 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-18 00:25:03,407 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-18 00:25:03,413 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:25:03" (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 00:25:03,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-18 00:25:03,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-18 00:25:03,466 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-07-18 00:25:03,466 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-07-18 00:25:03,466 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2020-07-18 00:25:03,466 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create [2020-07-18 00:25:03,467 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-18 00:25:03,467 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-18 00:25:03,467 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-18 00:25:03,467 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-07-18 00:25:03,467 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-07-18 00:25:03,468 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-07-18 00:25:03,468 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-07-18 00:25:03,468 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-07-18 00:25:03,468 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-07-18 00:25:03,468 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-07-18 00:25:03,468 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-07-18 00:25:03,469 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-07-18 00:25:03,469 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-07-18 00:25:03,469 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-07-18 00:25:03,470 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-07-18 00:25:03,470 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-07-18 00:25:03,472 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-07-18 00:25:03,473 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-07-18 00:25:03,473 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-07-18 00:25:03,473 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-07-18 00:25:03,473 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-07-18 00:25:03,473 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-07-18 00:25:03,473 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-07-18 00:25:03,473 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-07-18 00:25:03,474 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-07-18 00:25:03,474 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-07-18 00:25:03,474 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-07-18 00:25:03,474 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-07-18 00:25:03,474 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-07-18 00:25:03,474 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-07-18 00:25:03,474 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-07-18 00:25:03,475 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-07-18 00:25:03,475 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-07-18 00:25:03,475 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-07-18 00:25:03,475 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-07-18 00:25:03,475 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-07-18 00:25:03,475 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-07-18 00:25:03,475 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-07-18 00:25:03,476 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-07-18 00:25:03,476 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-07-18 00:25:03,476 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-07-18 00:25:03,476 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-07-18 00:25:03,478 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-07-18 00:25:03,478 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-07-18 00:25:03,478 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-07-18 00:25:03,478 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-07-18 00:25:03,478 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-07-18 00:25:03,479 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-07-18 00:25:03,479 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-07-18 00:25:03,479 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-07-18 00:25:03,479 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-07-18 00:25:03,479 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-07-18 00:25:03,479 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-07-18 00:25:03,480 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-07-18 00:25:03,480 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-07-18 00:25:03,480 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-18 00:25:03,480 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-07-18 00:25:03,480 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-07-18 00:25:03,480 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-18 00:25:03,480 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-07-18 00:25:03,481 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-07-18 00:25:03,481 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-07-18 00:25:03,481 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-07-18 00:25:03,481 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-07-18 00:25:03,481 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-18 00:25:03,481 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-07-18 00:25:03,482 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-07-18 00:25:03,482 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-07-18 00:25:03,483 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-18 00:25:03,483 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-07-18 00:25:03,483 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-07-18 00:25:03,483 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-07-18 00:25:03,483 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-07-18 00:25:03,484 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-07-18 00:25:03,484 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-07-18 00:25:03,485 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-07-18 00:25:03,485 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-07-18 00:25:03,485 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-07-18 00:25:03,485 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-07-18 00:25:03,485 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-07-18 00:25:03,485 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-07-18 00:25:03,486 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-07-18 00:25:03,486 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-07-18 00:25:03,487 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-07-18 00:25:03,487 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-07-18 00:25:03,487 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-07-18 00:25:03,487 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-07-18 00:25:03,488 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-07-18 00:25:03,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-07-18 00:25:03,488 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-07-18 00:25:03,488 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-07-18 00:25:03,488 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-07-18 00:25:03,488 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-07-18 00:25:03,489 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-07-18 00:25:03,489 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-07-18 00:25:03,489 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-07-18 00:25:03,489 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-07-18 00:25:03,490 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-07-18 00:25:03,490 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-07-18 00:25:03,490 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-07-18 00:25:03,490 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-07-18 00:25:03,490 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-07-18 00:25:03,490 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-07-18 00:25:03,490 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-07-18 00:25:03,491 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-07-18 00:25:03,491 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-07-18 00:25:03,491 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-07-18 00:25:03,491 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-07-18 00:25:03,491 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2020-07-18 00:25:03,491 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create [2020-07-18 00:25:03,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-18 00:25:03,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-18 00:25:03,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-18 00:25:03,492 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-18 00:25:03,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-18 00:25:03,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-18 00:25:03,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-18 00:25:03,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-18 00:25:03,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-18 00:25:03,827 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2020-07-18 00:25:04,186 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-18 00:25:04,187 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-07-18 00:25:04,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:25:04 BoogieIcfgContainer [2020-07-18 00:25:04,193 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-18 00:25:04,195 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-18 00:25:04,196 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-18 00:25:04,199 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-18 00:25:04,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.07 12:25:02" (1/3) ... [2020-07-18 00:25:04,201 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2166ede and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:25:04, skipping insertion in model container [2020-07-18 00:25:04,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:25:03" (2/3) ... [2020-07-18 00:25:04,201 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2166ede and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:25:04, skipping insertion in model container [2020-07-18 00:25:04,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:25:04" (3/3) ... [2020-07-18 00:25:04,204 INFO L109 eAbstractionObserver]: Analyzing ICFG dll_nullified-1.i [2020-07-18 00:25:04,215 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-18 00:25:04,227 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-18 00:25:04,241 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-18 00:25:04,269 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-18 00:25:04,269 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-18 00:25:04,270 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-18 00:25:04,271 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-18 00:25:04,274 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-18 00:25:04,275 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-18 00:25:04,275 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-18 00:25:04,276 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-18 00:25:04,304 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states. [2020-07-18 00:25:04,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-07-18 00:25:04,317 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:25:04,318 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] [2020-07-18 00:25:04,318 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:25:04,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:25:04,325 INFO L82 PathProgramCache]: Analyzing trace with hash 136898680, now seen corresponding path program 1 times [2020-07-18 00:25:04,334 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:25:04,335 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1928662499] [2020-07-18 00:25:04,335 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:25:04,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:25:04,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:25:04,563 INFO L280 TraceCheckUtils]: 0: Hoare triple {117#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {104#true} is VALID [2020-07-18 00:25:04,564 INFO L280 TraceCheckUtils]: 1: Hoare triple {104#true} #valid := #valid[0 := 0]; {104#true} is VALID [2020-07-18 00:25:04,564 INFO L280 TraceCheckUtils]: 2: Hoare triple {104#true} assume 0 < #StackHeapBarrier; {104#true} is VALID [2020-07-18 00:25:04,565 INFO L280 TraceCheckUtils]: 3: Hoare triple {104#true} assume true; {104#true} is VALID [2020-07-18 00:25:04,565 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {104#true} {104#true} #188#return; {104#true} is VALID [2020-07-18 00:25:04,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:25:04,603 INFO L280 TraceCheckUtils]: 0: Hoare triple {118#(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; {104#true} is VALID [2020-07-18 00:25:04,604 INFO L280 TraceCheckUtils]: 1: Hoare triple {104#true} ~head~0.base, ~head~0.offset := 0, 0; {104#true} is VALID [2020-07-18 00:25:04,605 INFO L280 TraceCheckUtils]: 2: Hoare triple {104#true} assume !true; {105#false} is VALID [2020-07-18 00:25:04,605 INFO L280 TraceCheckUtils]: 3: Hoare triple {105#false} #res.base, #res.offset := ~head~0.base, ~head~0.offset; {105#false} is VALID [2020-07-18 00:25:04,606 INFO L280 TraceCheckUtils]: 4: Hoare triple {105#false} assume true; {105#false} is VALID [2020-07-18 00:25:04,606 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {105#false} {104#true} #184#return; {105#false} is VALID [2020-07-18 00:25:04,608 INFO L263 TraceCheckUtils]: 0: Hoare triple {104#true} call ULTIMATE.init(); {117#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-18 00:25:04,608 INFO L280 TraceCheckUtils]: 1: Hoare triple {117#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {104#true} is VALID [2020-07-18 00:25:04,609 INFO L280 TraceCheckUtils]: 2: Hoare triple {104#true} #valid := #valid[0 := 0]; {104#true} is VALID [2020-07-18 00:25:04,609 INFO L280 TraceCheckUtils]: 3: Hoare triple {104#true} assume 0 < #StackHeapBarrier; {104#true} is VALID [2020-07-18 00:25:04,609 INFO L280 TraceCheckUtils]: 4: Hoare triple {104#true} assume true; {104#true} is VALID [2020-07-18 00:25:04,610 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {104#true} {104#true} #188#return; {104#true} is VALID [2020-07-18 00:25:04,610 INFO L263 TraceCheckUtils]: 6: Hoare triple {104#true} call #t~ret20 := main(); {104#true} is VALID [2020-07-18 00:25:04,610 INFO L280 TraceCheckUtils]: 7: Hoare triple {104#true} ~len~0 := 5; {104#true} is VALID [2020-07-18 00:25:04,612 INFO L263 TraceCheckUtils]: 8: Hoare triple {104#true} call #t~ret6.base, #t~ret6.offset := dll_create(~len~0); {118#(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$.offset)|))} is VALID [2020-07-18 00:25:04,613 INFO L280 TraceCheckUtils]: 9: Hoare triple {118#(and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} ~len := #in~len; {104#true} is VALID [2020-07-18 00:25:04,613 INFO L280 TraceCheckUtils]: 10: Hoare triple {104#true} ~head~0.base, ~head~0.offset := 0, 0; {104#true} is VALID [2020-07-18 00:25:04,614 INFO L280 TraceCheckUtils]: 11: Hoare triple {104#true} assume !true; {105#false} is VALID [2020-07-18 00:25:04,614 INFO L280 TraceCheckUtils]: 12: Hoare triple {105#false} #res.base, #res.offset := ~head~0.base, ~head~0.offset; {105#false} is VALID [2020-07-18 00:25:04,615 INFO L280 TraceCheckUtils]: 13: Hoare triple {105#false} assume true; {105#false} is VALID [2020-07-18 00:25:04,615 INFO L275 TraceCheckUtils]: 14: Hoare quadruple {105#false} {104#true} #184#return; {105#false} is VALID [2020-07-18 00:25:04,615 INFO L280 TraceCheckUtils]: 15: Hoare triple {105#false} ~head~1.base, ~head~1.offset := #t~ret6.base, #t~ret6.offset; {105#false} is VALID [2020-07-18 00:25:04,616 INFO L280 TraceCheckUtils]: 16: Hoare triple {105#false} havoc #t~ret6.base, #t~ret6.offset; {105#false} is VALID [2020-07-18 00:25:04,616 INFO L280 TraceCheckUtils]: 17: Hoare triple {105#false} SUMMARY for call #t~mem13.base, #t~mem13.offset := read~$Pointer$(~head~1.base, 4 + ~head~1.offset, 4); srcloc: L590-5 {105#false} is VALID [2020-07-18 00:25:04,616 INFO L280 TraceCheckUtils]: 18: Hoare triple {105#false} assume !!(#t~mem13.base != 0 || #t~mem13.offset != 0); {105#false} is VALID [2020-07-18 00:25:04,617 INFO L280 TraceCheckUtils]: 19: Hoare triple {105#false} havoc #t~mem13.base, #t~mem13.offset; {105#false} is VALID [2020-07-18 00:25:04,617 INFO L280 TraceCheckUtils]: 20: Hoare triple {105#false} SUMMARY for call #t~mem7 := read~int(~head~1.base, ~head~1.offset, 4); srcloc: L591 {105#false} is VALID [2020-07-18 00:25:04,617 INFO L280 TraceCheckUtils]: 21: Hoare triple {105#false} #t~short9 := 0 != #t~mem7; {105#false} is VALID [2020-07-18 00:25:04,618 INFO L280 TraceCheckUtils]: 22: Hoare triple {105#false} assume #t~short9; {105#false} is VALID [2020-07-18 00:25:04,618 INFO L280 TraceCheckUtils]: 23: Hoare triple {105#false} #t~short11 := #t~short9; {105#false} is VALID [2020-07-18 00:25:04,619 INFO L280 TraceCheckUtils]: 24: Hoare triple {105#false} assume #t~short11; {105#false} is VALID [2020-07-18 00:25:04,619 INFO L280 TraceCheckUtils]: 25: Hoare triple {105#false} assume #t~short11; {105#false} is VALID [2020-07-18 00:25:04,619 INFO L280 TraceCheckUtils]: 26: Hoare triple {105#false} havoc #t~mem7; {105#false} is VALID [2020-07-18 00:25:04,620 INFO L280 TraceCheckUtils]: 27: Hoare triple {105#false} havoc #t~mem8; {105#false} is VALID [2020-07-18 00:25:04,620 INFO L280 TraceCheckUtils]: 28: Hoare triple {105#false} havoc #t~short11; {105#false} is VALID [2020-07-18 00:25:04,620 INFO L280 TraceCheckUtils]: 29: Hoare triple {105#false} havoc #t~mem10; {105#false} is VALID [2020-07-18 00:25:04,621 INFO L280 TraceCheckUtils]: 30: Hoare triple {105#false} havoc #t~short9; {105#false} is VALID [2020-07-18 00:25:04,621 INFO L280 TraceCheckUtils]: 31: Hoare triple {105#false} assume !false; {105#false} is VALID [2020-07-18 00:25:04,627 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 00:25:04,631 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:25:04,634 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1928662499] [2020-07-18 00:25:04,637 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:25:04,637 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-18 00:25:04,640 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477033150] [2020-07-18 00:25:04,650 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2020-07-18 00:25:04,658 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:25:04,664 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-18 00:25:04,731 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 32 edges. 32 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:25:04,731 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-18 00:25:04,732 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 00:25:04,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-18 00:25:04,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-18 00:25:04,744 INFO L87 Difference]: Start difference. First operand 101 states. Second operand 4 states. [2020-07-18 00:25:05,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:25:05,925 INFO L93 Difference]: Finished difference Result 230 states and 265 transitions. [2020-07-18 00:25:05,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-18 00:25:05,926 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2020-07-18 00:25:05,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 00:25:05,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-18 00:25:05,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 265 transitions. [2020-07-18 00:25:05,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-18 00:25:05,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 265 transitions. [2020-07-18 00:25:05,956 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 265 transitions. [2020-07-18 00:25:06,277 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 265 edges. 265 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:25:06,301 INFO L225 Difference]: With dead ends: 230 [2020-07-18 00:25:06,301 INFO L226 Difference]: Without dead ends: 153 [2020-07-18 00:25:06,311 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-18 00:25:06,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-07-18 00:25:06,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 92. [2020-07-18 00:25:06,420 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 00:25:06,421 INFO L82 GeneralOperation]: Start isEquivalent. First operand 153 states. Second operand 92 states. [2020-07-18 00:25:06,421 INFO L74 IsIncluded]: Start isIncluded. First operand 153 states. Second operand 92 states. [2020-07-18 00:25:06,421 INFO L87 Difference]: Start difference. First operand 153 states. Second operand 92 states. [2020-07-18 00:25:06,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:25:06,439 INFO L93 Difference]: Finished difference Result 153 states and 169 transitions. [2020-07-18 00:25:06,439 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 169 transitions. [2020-07-18 00:25:06,448 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:25:06,448 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:25:06,448 INFO L74 IsIncluded]: Start isIncluded. First operand 92 states. Second operand 153 states. [2020-07-18 00:25:06,448 INFO L87 Difference]: Start difference. First operand 92 states. Second operand 153 states. [2020-07-18 00:25:06,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:25:06,474 INFO L93 Difference]: Finished difference Result 153 states and 169 transitions. [2020-07-18 00:25:06,474 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 169 transitions. [2020-07-18 00:25:06,476 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:25:06,478 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:25:06,478 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 00:25:06,478 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 00:25:06,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-07-18 00:25:06,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 101 transitions. [2020-07-18 00:25:06,490 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 101 transitions. Word has length 32 [2020-07-18 00:25:06,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 00:25:06,490 INFO L479 AbstractCegarLoop]: Abstraction has 92 states and 101 transitions. [2020-07-18 00:25:06,490 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-18 00:25:06,490 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 92 states and 101 transitions. [2020-07-18 00:25:06,596 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 101 edges. 101 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:25:06,596 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 101 transitions. [2020-07-18 00:25:06,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-07-18 00:25:06,599 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:25:06,599 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] [2020-07-18 00:25:06,600 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-18 00:25:06,600 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:25:06,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:25:06,600 INFO L82 PathProgramCache]: Analyzing trace with hash 272796752, now seen corresponding path program 1 times [2020-07-18 00:25:06,601 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:25:06,601 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1012730053] [2020-07-18 00:25:06,601 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:25:06,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:25:06,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:25:06,696 INFO L280 TraceCheckUtils]: 0: Hoare triple {1088#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {1074#true} is VALID [2020-07-18 00:25:06,697 INFO L280 TraceCheckUtils]: 1: Hoare triple {1074#true} #valid := #valid[0 := 0]; {1074#true} is VALID [2020-07-18 00:25:06,697 INFO L280 TraceCheckUtils]: 2: Hoare triple {1074#true} assume 0 < #StackHeapBarrier; {1074#true} is VALID [2020-07-18 00:25:06,697 INFO L280 TraceCheckUtils]: 3: Hoare triple {1074#true} assume true; {1074#true} is VALID [2020-07-18 00:25:06,698 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {1074#true} {1074#true} #188#return; {1074#true} is VALID [2020-07-18 00:25:06,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:25:06,762 INFO L280 TraceCheckUtils]: 0: Hoare triple {1089#(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; {1090#(= dll_create_~len |dll_create_#in~len|)} is VALID [2020-07-18 00:25:06,763 INFO L280 TraceCheckUtils]: 1: Hoare triple {1090#(= dll_create_~len |dll_create_#in~len|)} ~head~0.base, ~head~0.offset := 0, 0; {1090#(= dll_create_~len |dll_create_#in~len|)} is VALID [2020-07-18 00:25:06,763 INFO L280 TraceCheckUtils]: 2: Hoare triple {1090#(= dll_create_~len |dll_create_#in~len|)} assume !(~len > 0); {1091#(<= |dll_create_#in~len| 0)} is VALID [2020-07-18 00:25:06,764 INFO L280 TraceCheckUtils]: 3: Hoare triple {1091#(<= |dll_create_#in~len| 0)} #res.base, #res.offset := ~head~0.base, ~head~0.offset; {1091#(<= |dll_create_#in~len| 0)} is VALID [2020-07-18 00:25:06,767 INFO L280 TraceCheckUtils]: 4: Hoare triple {1091#(<= |dll_create_#in~len| 0)} assume true; {1091#(<= |dll_create_#in~len| 0)} is VALID [2020-07-18 00:25:06,769 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {1091#(<= |dll_create_#in~len| 0)} {1081#(<= 5 main_~len~0)} #184#return; {1075#false} is VALID [2020-07-18 00:25:06,771 INFO L263 TraceCheckUtils]: 0: Hoare triple {1074#true} call ULTIMATE.init(); {1088#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-18 00:25:06,772 INFO L280 TraceCheckUtils]: 1: Hoare triple {1088#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {1074#true} is VALID [2020-07-18 00:25:06,772 INFO L280 TraceCheckUtils]: 2: Hoare triple {1074#true} #valid := #valid[0 := 0]; {1074#true} is VALID [2020-07-18 00:25:06,773 INFO L280 TraceCheckUtils]: 3: Hoare triple {1074#true} assume 0 < #StackHeapBarrier; {1074#true} is VALID [2020-07-18 00:25:06,773 INFO L280 TraceCheckUtils]: 4: Hoare triple {1074#true} assume true; {1074#true} is VALID [2020-07-18 00:25:06,774 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {1074#true} {1074#true} #188#return; {1074#true} is VALID [2020-07-18 00:25:06,774 INFO L263 TraceCheckUtils]: 6: Hoare triple {1074#true} call #t~ret20 := main(); {1074#true} is VALID [2020-07-18 00:25:06,776 INFO L280 TraceCheckUtils]: 7: Hoare triple {1074#true} ~len~0 := 5; {1081#(<= 5 main_~len~0)} is VALID [2020-07-18 00:25:06,778 INFO L263 TraceCheckUtils]: 8: Hoare triple {1081#(<= 5 main_~len~0)} call #t~ret6.base, #t~ret6.offset := dll_create(~len~0); {1089#(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$.offset)|))} is VALID [2020-07-18 00:25:06,780 INFO L280 TraceCheckUtils]: 9: Hoare triple {1089#(and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} ~len := #in~len; {1090#(= dll_create_~len |dll_create_#in~len|)} is VALID [2020-07-18 00:25:06,782 INFO L280 TraceCheckUtils]: 10: Hoare triple {1090#(= dll_create_~len |dll_create_#in~len|)} ~head~0.base, ~head~0.offset := 0, 0; {1090#(= dll_create_~len |dll_create_#in~len|)} is VALID [2020-07-18 00:25:06,784 INFO L280 TraceCheckUtils]: 11: Hoare triple {1090#(= dll_create_~len |dll_create_#in~len|)} assume !(~len > 0); {1091#(<= |dll_create_#in~len| 0)} is VALID [2020-07-18 00:25:06,785 INFO L280 TraceCheckUtils]: 12: Hoare triple {1091#(<= |dll_create_#in~len| 0)} #res.base, #res.offset := ~head~0.base, ~head~0.offset; {1091#(<= |dll_create_#in~len| 0)} is VALID [2020-07-18 00:25:06,787 INFO L280 TraceCheckUtils]: 13: Hoare triple {1091#(<= |dll_create_#in~len| 0)} assume true; {1091#(<= |dll_create_#in~len| 0)} is VALID [2020-07-18 00:25:06,788 INFO L275 TraceCheckUtils]: 14: Hoare quadruple {1091#(<= |dll_create_#in~len| 0)} {1081#(<= 5 main_~len~0)} #184#return; {1075#false} is VALID [2020-07-18 00:25:06,789 INFO L280 TraceCheckUtils]: 15: Hoare triple {1075#false} ~head~1.base, ~head~1.offset := #t~ret6.base, #t~ret6.offset; {1075#false} is VALID [2020-07-18 00:25:06,789 INFO L280 TraceCheckUtils]: 16: Hoare triple {1075#false} havoc #t~ret6.base, #t~ret6.offset; {1075#false} is VALID [2020-07-18 00:25:06,789 INFO L280 TraceCheckUtils]: 17: Hoare triple {1075#false} SUMMARY for call #t~mem13.base, #t~mem13.offset := read~$Pointer$(~head~1.base, 4 + ~head~1.offset, 4); srcloc: L590-5 {1075#false} is VALID [2020-07-18 00:25:06,789 INFO L280 TraceCheckUtils]: 18: Hoare triple {1075#false} assume !!(#t~mem13.base != 0 || #t~mem13.offset != 0); {1075#false} is VALID [2020-07-18 00:25:06,790 INFO L280 TraceCheckUtils]: 19: Hoare triple {1075#false} havoc #t~mem13.base, #t~mem13.offset; {1075#false} is VALID [2020-07-18 00:25:06,790 INFO L280 TraceCheckUtils]: 20: Hoare triple {1075#false} SUMMARY for call #t~mem7 := read~int(~head~1.base, ~head~1.offset, 4); srcloc: L591 {1075#false} is VALID [2020-07-18 00:25:06,790 INFO L280 TraceCheckUtils]: 21: Hoare triple {1075#false} #t~short9 := 0 != #t~mem7; {1075#false} is VALID [2020-07-18 00:25:06,790 INFO L280 TraceCheckUtils]: 22: Hoare triple {1075#false} assume #t~short9; {1075#false} is VALID [2020-07-18 00:25:06,791 INFO L280 TraceCheckUtils]: 23: Hoare triple {1075#false} #t~short11 := #t~short9; {1075#false} is VALID [2020-07-18 00:25:06,791 INFO L280 TraceCheckUtils]: 24: Hoare triple {1075#false} assume #t~short11; {1075#false} is VALID [2020-07-18 00:25:06,791 INFO L280 TraceCheckUtils]: 25: Hoare triple {1075#false} assume #t~short11; {1075#false} is VALID [2020-07-18 00:25:06,791 INFO L280 TraceCheckUtils]: 26: Hoare triple {1075#false} havoc #t~mem7; {1075#false} is VALID [2020-07-18 00:25:06,792 INFO L280 TraceCheckUtils]: 27: Hoare triple {1075#false} havoc #t~mem8; {1075#false} is VALID [2020-07-18 00:25:06,792 INFO L280 TraceCheckUtils]: 28: Hoare triple {1075#false} havoc #t~short11; {1075#false} is VALID [2020-07-18 00:25:06,792 INFO L280 TraceCheckUtils]: 29: Hoare triple {1075#false} havoc #t~mem10; {1075#false} is VALID [2020-07-18 00:25:06,792 INFO L280 TraceCheckUtils]: 30: Hoare triple {1075#false} havoc #t~short9; {1075#false} is VALID [2020-07-18 00:25:06,793 INFO L280 TraceCheckUtils]: 31: Hoare triple {1075#false} assume !false; {1075#false} is VALID [2020-07-18 00:25:06,794 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 00:25:07,377 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:25:07,378 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1012730053] [2020-07-18 00:25:07,378 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:25:07,378 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-07-18 00:25:07,379 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143143129] [2020-07-18 00:25:07,379 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 32 [2020-07-18 00:25:07,380 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:25:07,380 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 18 states. [2020-07-18 00:25:07,411 WARN L140 InductivityCheck]: Transition 1102#(and (or (not (= 0 (select (select |#memory_$Pointer$.offset| main_~head~1.base) (+ main_~head~1.offset 4)))) (not (= 0 (select (select |#memory_$Pointer$.base| main_~head~1.base) (+ main_~head~1.offset 4))))) (<= |dll_create_#in~len| 0) (not (= 0 (select (select |#memory_int| main_~head~1.base) main_~head~1.offset)))) ( _ , assume !false; , 1075#false ) not inductive [2020-07-18 00:25:07,412 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-18 00:25:07,413 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 00:25:07,419 INFO L168 Benchmark]: Toolchain (without parser) took 4753.79 ms. Allocated memory was 135.8 MB in the beginning and 253.8 MB in the end (delta: 118.0 MB). Free memory was 99.5 MB in the beginning and 119.4 MB in the end (delta: -19.8 MB). Peak memory consumption was 98.1 MB. Max. memory is 7.1 GB. [2020-07-18 00:25:07,420 INFO L168 Benchmark]: CDTParser took 0.84 ms. Allocated memory is still 135.8 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-18 00:25:07,421 INFO L168 Benchmark]: CACSL2BoogieTranslator took 650.96 ms. Allocated memory was 135.8 MB in the beginning and 200.3 MB in the end (delta: 64.5 MB). Free memory was 99.1 MB in the beginning and 165.6 MB in the end (delta: -66.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. [2020-07-18 00:25:07,422 INFO L168 Benchmark]: Boogie Preprocessor took 85.92 ms. Allocated memory is still 200.3 MB. Free memory was 165.6 MB in the beginning and 162.2 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. [2020-07-18 00:25:07,423 INFO L168 Benchmark]: RCFGBuilder took 787.15 ms. Allocated memory is still 200.3 MB. Free memory was 162.2 MB in the beginning and 95.3 MB in the end (delta: 66.9 MB). Peak memory consumption was 66.9 MB. Max. memory is 7.1 GB. [2020-07-18 00:25:07,424 INFO L168 Benchmark]: TraceAbstraction took 3219.85 ms. Allocated memory was 200.3 MB in the beginning and 253.8 MB in the end (delta: 53.5 MB). Free memory was 95.3 MB in the beginning and 119.4 MB in the end (delta: -24.1 MB). Peak memory consumption was 29.4 MB. Max. memory is 7.1 GB. [2020-07-18 00:25:07,428 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 0.84 ms. Allocated memory is still 135.8 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 650.96 ms. Allocated memory was 135.8 MB in the beginning and 200.3 MB in the end (delta: 64.5 MB). Free memory was 99.1 MB in the beginning and 165.6 MB in the end (delta: -66.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 85.92 ms. Allocated memory is still 200.3 MB. Free memory was 165.6 MB in the beginning and 162.2 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 787.15 ms. Allocated memory is still 200.3 MB. Free memory was 162.2 MB in the beginning and 95.3 MB in the end (delta: 66.9 MB). Peak memory consumption was 66.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3219.85 ms. Allocated memory was 200.3 MB in the beginning and 253.8 MB in the end (delta: 53.5 MB). Free memory was 95.3 MB in the beginning and 119.4 MB in the end (delta: -24.1 MB). Peak memory consumption was 29.4 MB. 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...