/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/forester-heap/sll-optional-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-8fc6572 [2020-07-10 19:04:13,507 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-10 19:04:13,510 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-10 19:04:13,523 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-10 19:04:13,524 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-10 19:04:13,525 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-10 19:04:13,526 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-10 19:04:13,528 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-10 19:04:13,530 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-10 19:04:13,531 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-10 19:04:13,532 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-10 19:04:13,533 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-10 19:04:13,533 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-10 19:04:13,534 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-10 19:04:13,535 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-10 19:04:13,536 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-10 19:04:13,537 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-10 19:04:13,538 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-10 19:04:13,540 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-10 19:04:13,542 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-10 19:04:13,544 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-10 19:04:13,545 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-10 19:04:13,546 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-10 19:04:13,547 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-10 19:04:13,549 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-10 19:04:13,549 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-10 19:04:13,549 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-10 19:04:13,550 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-10 19:04:13,551 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-10 19:04:13,552 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-10 19:04:13,552 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-10 19:04:13,553 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-10 19:04:13,553 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-10 19:04:13,554 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-10 19:04:13,555 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-10 19:04:13,555 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-10 19:04:13,556 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-10 19:04:13,556 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-10 19:04:13,556 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-10 19:04:13,557 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-10 19:04:13,558 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-10 19:04:13,559 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-10 19:04:13,568 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-10 19:04:13,568 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-10 19:04:13,569 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-10 19:04:13,570 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-10 19:04:13,570 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-10 19:04:13,570 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-10 19:04:13,570 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-10 19:04:13,570 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-10 19:04:13,571 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-10 19:04:13,571 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-10 19:04:13,571 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-10 19:04:13,571 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-10 19:04:13,571 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-10 19:04:13,571 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-10 19:04:13,572 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-10 19:04:13,572 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-10 19:04:13,572 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-10 19:04:13,572 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-10 19:04:13,572 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 19:04:13,573 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-10 19:04:13,573 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-10 19:04:13,573 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-10 19:04:13,573 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-10 19:04:13,832 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-10 19:04:13,846 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-10 19:04:13,849 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-10 19:04:13,851 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-10 19:04:13,851 INFO L275 PluginConnector]: CDTParser initialized [2020-07-10 19:04:13,852 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/sll-optional-2.i [2020-07-10 19:04:13,931 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78feaa29c/dc2218d25aa1473ca3c097ad463c91ca/FLAGd0dd9508a [2020-07-10 19:04:14,481 INFO L306 CDTParser]: Found 1 translation units. [2020-07-10 19:04:14,482 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-optional-2.i [2020-07-10 19:04:14,497 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78feaa29c/dc2218d25aa1473ca3c097ad463c91ca/FLAGd0dd9508a [2020-07-10 19:04:14,761 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78feaa29c/dc2218d25aa1473ca3c097ad463c91ca [2020-07-10 19:04:14,772 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-10 19:04:14,775 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-10 19:04:14,778 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-10 19:04:14,778 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-10 19:04:14,781 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-10 19:04:14,783 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 07:04:14" (1/1) ... [2020-07-10 19:04:14,785 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a262e64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:04:14, skipping insertion in model container [2020-07-10 19:04:14,786 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 07:04:14" (1/1) ... [2020-07-10 19:04:14,792 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-10 19:04:14,851 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-10 19:04:15,362 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 19:04:15,380 INFO L203 MainTranslator]: Completed pre-run [2020-07-10 19:04:15,430 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 19:04:15,495 INFO L208 MainTranslator]: Completed translation [2020-07-10 19:04:15,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:04:15 WrapperNode [2020-07-10 19:04:15,496 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-10 19:04:15,496 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-10 19:04:15,497 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-10 19:04:15,497 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-10 19:04:15,509 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:04:15" (1/1) ... [2020-07-10 19:04:15,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:04:15" (1/1) ... [2020-07-10 19:04:15,525 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:04:15" (1/1) ... [2020-07-10 19:04:15,525 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:04:15" (1/1) ... [2020-07-10 19:04:15,552 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:04:15" (1/1) ... [2020-07-10 19:04:15,560 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:04:15" (1/1) ... [2020-07-10 19:04:15,564 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:04:15" (1/1) ... [2020-07-10 19:04:15,571 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-10 19:04:15,571 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-10 19:04:15,571 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-10 19:04:15,571 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-10 19:04:15,573 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:04:15" (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 [2020-07-10 19:04:15,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-10 19:04:15,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-10 19:04:15,634 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-10 19:04:15,634 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-07-10 19:04:15,634 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-07-10 19:04:15,634 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-07-10 19:04:15,635 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-07-10 19:04:15,635 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-07-10 19:04:15,635 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-07-10 19:04:15,635 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-07-10 19:04:15,635 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-07-10 19:04:15,635 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-07-10 19:04:15,635 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-07-10 19:04:15,636 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-07-10 19:04:15,636 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-07-10 19:04:15,636 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-07-10 19:04:15,636 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-07-10 19:04:15,636 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-07-10 19:04:15,636 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-07-10 19:04:15,637 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-07-10 19:04:15,637 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-07-10 19:04:15,637 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-07-10 19:04:15,637 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-07-10 19:04:15,637 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-07-10 19:04:15,638 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-07-10 19:04:15,638 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-07-10 19:04:15,638 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-07-10 19:04:15,638 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-07-10 19:04:15,638 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-07-10 19:04:15,638 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-07-10 19:04:15,639 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-07-10 19:04:15,639 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-07-10 19:04:15,639 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-07-10 19:04:15,639 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-07-10 19:04:15,639 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-07-10 19:04:15,639 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-07-10 19:04:15,640 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-07-10 19:04:15,640 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-07-10 19:04:15,640 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-07-10 19:04:15,640 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-07-10 19:04:15,642 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-07-10 19:04:15,642 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-07-10 19:04:15,642 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-07-10 19:04:15,642 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-07-10 19:04:15,642 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-07-10 19:04:15,643 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-07-10 19:04:15,643 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-07-10 19:04:15,643 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-07-10 19:04:15,643 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-07-10 19:04:15,643 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-07-10 19:04:15,643 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-07-10 19:04:15,644 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-07-10 19:04:15,644 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-07-10 19:04:15,644 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-10 19:04:15,644 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-07-10 19:04:15,644 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-07-10 19:04:15,644 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-10 19:04:15,644 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-07-10 19:04:15,645 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-07-10 19:04:15,645 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-07-10 19:04:15,645 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-07-10 19:04:15,645 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-07-10 19:04:15,646 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-10 19:04:15,646 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-07-10 19:04:15,646 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-07-10 19:04:15,646 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-07-10 19:04:15,646 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-10 19:04:15,646 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-07-10 19:04:15,646 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-07-10 19:04:15,647 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-07-10 19:04:15,647 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-07-10 19:04:15,647 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-07-10 19:04:15,647 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-07-10 19:04:15,647 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-07-10 19:04:15,648 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-07-10 19:04:15,649 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-07-10 19:04:15,649 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-07-10 19:04:15,649 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-07-10 19:04:15,649 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-07-10 19:04:15,649 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-07-10 19:04:15,650 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-07-10 19:04:15,650 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-07-10 19:04:15,651 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-07-10 19:04:15,651 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-07-10 19:04:15,651 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-07-10 19:04:15,651 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-07-10 19:04:15,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-07-10 19:04:15,653 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-07-10 19:04:15,653 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-07-10 19:04:15,654 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-07-10 19:04:15,654 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-07-10 19:04:15,654 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-07-10 19:04:15,654 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-07-10 19:04:15,654 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-07-10 19:04:15,655 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-07-10 19:04:15,655 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-07-10 19:04:15,655 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-07-10 19:04:15,655 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-07-10 19:04:15,655 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-07-10 19:04:15,656 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-07-10 19:04:15,656 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-07-10 19:04:15,656 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-07-10 19:04:15,656 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-07-10 19:04:15,657 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-07-10 19:04:15,657 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-07-10 19:04:15,657 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-07-10 19:04:15,657 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-10 19:04:15,657 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-10 19:04:15,657 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-10 19:04:15,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-10 19:04:15,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-10 19:04:15,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-10 19:04:15,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-10 19:04:15,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-10 19:04:15,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-10 19:04:15,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-10 19:04:15,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-10 19:04:16,434 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-10 19:04:16,434 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-10 19:04:16,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 07:04:16 BoogieIcfgContainer [2020-07-10 19:04:16,439 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-10 19:04:16,441 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-10 19:04:16,441 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-10 19:04:16,444 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-10 19:04:16,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.07 07:04:14" (1/3) ... [2020-07-10 19:04:16,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17a0b211 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 07:04:16, skipping insertion in model container [2020-07-10 19:04:16,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:04:15" (2/3) ... [2020-07-10 19:04:16,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17a0b211 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 07:04:16, skipping insertion in model container [2020-07-10 19:04:16,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 07:04:16" (3/3) ... [2020-07-10 19:04:16,449 INFO L109 eAbstractionObserver]: Analyzing ICFG sll-optional-2.i [2020-07-10 19:04:16,461 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-10 19:04:16,471 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-10 19:04:16,487 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-10 19:04:16,512 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-10 19:04:16,513 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-10 19:04:16,513 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-10 19:04:16,513 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-10 19:04:16,513 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-10 19:04:16,514 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-10 19:04:16,514 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-10 19:04:16,514 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-10 19:04:16,532 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states. [2020-07-10 19:04:16,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-07-10 19:04:16,545 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 19:04:16,547 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] [2020-07-10 19:04:16,547 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 19:04:16,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 19:04:16,555 INFO L82 PathProgramCache]: Analyzing trace with hash -1919098423, now seen corresponding path program 1 times [2020-07-10 19:04:16,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 19:04:16,577 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1911683522] [2020-07-10 19:04:16,577 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 19:04:16,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 19:04:16,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 19:04:16,819 INFO L280 TraceCheckUtils]: 0: Hoare triple {106#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {99#true} is VALID [2020-07-10 19:04:16,820 INFO L280 TraceCheckUtils]: 1: Hoare triple {99#true} #valid := #valid[0 := 0]; {99#true} is VALID [2020-07-10 19:04:16,820 INFO L280 TraceCheckUtils]: 2: Hoare triple {99#true} assume 0 < #StackHeapBarrier; {99#true} is VALID [2020-07-10 19:04:16,821 INFO L280 TraceCheckUtils]: 3: Hoare triple {99#true} assume true; {99#true} is VALID [2020-07-10 19:04:16,821 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {99#true} {99#true} #169#return; {99#true} is VALID [2020-07-10 19:04:16,825 INFO L263 TraceCheckUtils]: 0: Hoare triple {99#true} call ULTIMATE.init(); {106#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-10 19:04:16,826 INFO L280 TraceCheckUtils]: 1: Hoare triple {106#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {99#true} is VALID [2020-07-10 19:04:16,826 INFO L280 TraceCheckUtils]: 2: Hoare triple {99#true} #valid := #valid[0 := 0]; {99#true} is VALID [2020-07-10 19:04:16,826 INFO L280 TraceCheckUtils]: 3: Hoare triple {99#true} assume 0 < #StackHeapBarrier; {99#true} is VALID [2020-07-10 19:04:16,827 INFO L280 TraceCheckUtils]: 4: Hoare triple {99#true} assume true; {99#true} is VALID [2020-07-10 19:04:16,827 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {99#true} {99#true} #169#return; {99#true} is VALID [2020-07-10 19:04:16,827 INFO L263 TraceCheckUtils]: 6: Hoare triple {99#true} call #t~ret19 := main(); {99#true} is VALID [2020-07-10 19:04:16,828 INFO L280 TraceCheckUtils]: 7: Hoare triple {99#true} SUMMARY for call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(12); srcloc: mainENTRY {99#true} is VALID [2020-07-10 19:04:16,828 INFO L280 TraceCheckUtils]: 8: Hoare triple {99#true} ~head~0.base, ~head~0.offset := #t~malloc0.base, #t~malloc0.offset; {99#true} is VALID [2020-07-10 19:04:16,829 INFO L280 TraceCheckUtils]: 9: Hoare triple {99#true} SUMMARY for call write~$Pointer$(0, 0, ~head~0.base, ~head~0.offset, 4); srcloc: L986 {99#true} is VALID [2020-07-10 19:04:16,829 INFO L280 TraceCheckUtils]: 10: Hoare triple {99#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {99#true} is VALID [2020-07-10 19:04:16,829 INFO L280 TraceCheckUtils]: 11: Hoare triple {99#true} assume !(0 != #t~nondet1); {99#true} is VALID [2020-07-10 19:04:16,830 INFO L280 TraceCheckUtils]: 12: Hoare triple {99#true} havoc #t~nondet1; {99#true} is VALID [2020-07-10 19:04:16,830 INFO L280 TraceCheckUtils]: 13: Hoare triple {99#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {99#true} is VALID [2020-07-10 19:04:16,830 INFO L280 TraceCheckUtils]: 14: Hoare triple {99#true} assume 0 != #t~nondet4; {99#true} is VALID [2020-07-10 19:04:16,831 INFO L280 TraceCheckUtils]: 15: Hoare triple {99#true} havoc #t~nondet4; {99#true} is VALID [2020-07-10 19:04:16,831 INFO L280 TraceCheckUtils]: 16: Hoare triple {99#true} SUMMARY for call write~int(1, ~head~0.base, 8 + ~head~0.offset, 4); srcloc: L987-13 {99#true} is VALID [2020-07-10 19:04:16,832 INFO L280 TraceCheckUtils]: 17: Hoare triple {99#true} SUMMARY for call write~$Pointer$(~head~0.base, ~head~0.offset, ~head~0.base, 4 + ~head~0.offset, 4); srcloc: L987-14 {99#true} is VALID [2020-07-10 19:04:16,832 INFO L280 TraceCheckUtils]: 18: Hoare triple {99#true} ~x~0.base, ~x~0.offset := ~head~0.base, ~head~0.offset; {99#true} is VALID [2020-07-10 19:04:16,833 INFO L280 TraceCheckUtils]: 19: Hoare triple {99#true} assume !true; {100#false} is VALID [2020-07-10 19:04:16,834 INFO L280 TraceCheckUtils]: 20: Hoare triple {100#false} ~x~0.base, ~x~0.offset := ~head~0.base, ~head~0.offset; {100#false} is VALID [2020-07-10 19:04:16,834 INFO L280 TraceCheckUtils]: 21: Hoare triple {100#false} assume !!(~x~0.base != 0 || ~x~0.offset != 0); {100#false} is VALID [2020-07-10 19:04:16,834 INFO L280 TraceCheckUtils]: 22: Hoare triple {100#false} SUMMARY for call #t~mem12 := read~int(~x~0.base, 8 + ~x~0.offset, 4); srcloc: L996-16 {100#false} is VALID [2020-07-10 19:04:16,835 INFO L280 TraceCheckUtils]: 23: Hoare triple {100#false} #t~short14 := 2 == #t~mem12; {100#false} is VALID [2020-07-10 19:04:16,835 INFO L280 TraceCheckUtils]: 24: Hoare triple {100#false} assume !#t~short14; {100#false} is VALID [2020-07-10 19:04:16,835 INFO L280 TraceCheckUtils]: 25: Hoare triple {100#false} assume !#t~short14; {100#false} is VALID [2020-07-10 19:04:16,836 INFO L280 TraceCheckUtils]: 26: Hoare triple {100#false} havoc #t~short14; {100#false} is VALID [2020-07-10 19:04:16,836 INFO L280 TraceCheckUtils]: 27: Hoare triple {100#false} havoc #t~mem13.base, #t~mem13.offset; {100#false} is VALID [2020-07-10 19:04:16,836 INFO L280 TraceCheckUtils]: 28: Hoare triple {100#false} havoc #t~mem12; {100#false} is VALID [2020-07-10 19:04:16,837 INFO L280 TraceCheckUtils]: 29: Hoare triple {100#false} assume !false; {100#false} is VALID [2020-07-10 19:04:16,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 19:04:16,842 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 19:04:16,844 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1911683522] [2020-07-10 19:04:16,846 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 19:04:16,847 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-10 19:04:16,847 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721574538] [2020-07-10 19:04:16,854 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2020-07-10 19:04:16,857 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 19:04:16,861 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-10 19:04:16,910 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 30 edges. 30 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 19:04:16,910 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-10 19:04:16,911 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-10 19:04:16,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-10 19:04:16,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-10 19:04:16,924 INFO L87 Difference]: Start difference. First operand 96 states. Second operand 3 states. [2020-07-10 19:04:17,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 19:04:17,385 INFO L93 Difference]: Finished difference Result 135 states and 157 transitions. [2020-07-10 19:04:17,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-10 19:04:17,385 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2020-07-10 19:04:17,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 19:04:17,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-10 19:04:17,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 157 transitions. [2020-07-10 19:04:17,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-10 19:04:17,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 157 transitions. [2020-07-10 19:04:17,413 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 157 transitions. [2020-07-10 19:04:17,629 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 157 edges. 157 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 19:04:17,660 INFO L225 Difference]: With dead ends: 135 [2020-07-10 19:04:17,660 INFO L226 Difference]: Without dead ends: 77 [2020-07-10 19:04:17,665 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-10 19:04:17,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-07-10 19:04:17,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2020-07-10 19:04:17,761 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 19:04:17,762 INFO L82 GeneralOperation]: Start isEquivalent. First operand 77 states. Second operand 77 states. [2020-07-10 19:04:17,763 INFO L74 IsIncluded]: Start isIncluded. First operand 77 states. Second operand 77 states. [2020-07-10 19:04:17,763 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 77 states. [2020-07-10 19:04:17,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 19:04:17,774 INFO L93 Difference]: Finished difference Result 77 states and 83 transitions. [2020-07-10 19:04:17,775 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 83 transitions. [2020-07-10 19:04:17,776 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 19:04:17,777 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 19:04:17,777 INFO L74 IsIncluded]: Start isIncluded. First operand 77 states. Second operand 77 states. [2020-07-10 19:04:17,777 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 77 states. [2020-07-10 19:04:17,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 19:04:17,799 INFO L93 Difference]: Finished difference Result 77 states and 83 transitions. [2020-07-10 19:04:17,800 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 83 transitions. [2020-07-10 19:04:17,801 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 19:04:17,801 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 19:04:17,801 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 19:04:17,802 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 19:04:17,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-07-10 19:04:17,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 83 transitions. [2020-07-10 19:04:17,815 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 83 transitions. Word has length 30 [2020-07-10 19:04:17,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 19:04:17,816 INFO L479 AbstractCegarLoop]: Abstraction has 77 states and 83 transitions. [2020-07-10 19:04:17,816 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-10 19:04:17,816 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 77 states and 83 transitions. [2020-07-10 19:04:17,928 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 83 edges. 83 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 19:04:17,928 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 83 transitions. [2020-07-10 19:04:17,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-07-10 19:04:17,929 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 19:04:17,930 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] [2020-07-10 19:04:17,930 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-10 19:04:17,930 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 19:04:17,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 19:04:17,931 INFO L82 PathProgramCache]: Analyzing trace with hash -493967776, now seen corresponding path program 1 times [2020-07-10 19:04:17,931 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 19:04:17,931 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1812566417] [2020-07-10 19:04:17,932 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 19:04:17,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 19:04:17,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 19:04:18,041 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 19:04:18,042 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-10 19:04:18,042 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-10 19:04:18,043 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-10 19:04:18,058 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-10 19:04:18,058 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-10 19:04:18,058 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-10 19:04:18,059 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-10 19:04:18,059 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 19:04:18,059 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 19:04:18,059 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 19:04:18,059 WARN L170 areAnnotationChecker]: L985 has no Hoare annotation [2020-07-10 19:04:18,059 WARN L170 areAnnotationChecker]: L-1-1 has no Hoare annotation [2020-07-10 19:04:18,059 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-10 19:04:18,060 WARN L170 areAnnotationChecker]: L986 has no Hoare annotation [2020-07-10 19:04:18,060 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-10 19:04:18,060 WARN L170 areAnnotationChecker]: L986-1 has no Hoare annotation [2020-07-10 19:04:18,060 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-10 19:04:18,060 WARN L170 areAnnotationChecker]: L987 has no Hoare annotation [2020-07-10 19:04:18,060 WARN L170 areAnnotationChecker]: L987 has no Hoare annotation [2020-07-10 19:04:18,060 WARN L170 areAnnotationChecker]: L987-1 has no Hoare annotation [2020-07-10 19:04:18,061 WARN L170 areAnnotationChecker]: L987-9 has no Hoare annotation [2020-07-10 19:04:18,061 WARN L170 areAnnotationChecker]: L987-2 has no Hoare annotation [2020-07-10 19:04:18,061 WARN L170 areAnnotationChecker]: L987-10 has no Hoare annotation [2020-07-10 19:04:18,061 WARN L170 areAnnotationChecker]: L987-3 has no Hoare annotation [2020-07-10 19:04:18,061 WARN L170 areAnnotationChecker]: L987-11 has no Hoare annotation [2020-07-10 19:04:18,061 WARN L170 areAnnotationChecker]: L987-11 has no Hoare annotation [2020-07-10 19:04:18,061 WARN L170 areAnnotationChecker]: L987-4 has no Hoare annotation [2020-07-10 19:04:18,062 WARN L170 areAnnotationChecker]: L987-12 has no Hoare annotation [2020-07-10 19:04:18,062 WARN L170 areAnnotationChecker]: L987-16 has no Hoare annotation [2020-07-10 19:04:18,062 WARN L170 areAnnotationChecker]: L987-5 has no Hoare annotation [2020-07-10 19:04:18,062 WARN L170 areAnnotationChecker]: L987-13 has no Hoare annotation [2020-07-10 19:04:18,062 WARN L170 areAnnotationChecker]: L987-17 has no Hoare annotation [2020-07-10 19:04:18,062 WARN L170 areAnnotationChecker]: L987-6 has no Hoare annotation [2020-07-10 19:04:18,062 WARN L170 areAnnotationChecker]: L987-14 has no Hoare annotation [2020-07-10 19:04:18,063 WARN L170 areAnnotationChecker]: L987-18 has no Hoare annotation [2020-07-10 19:04:18,063 WARN L170 areAnnotationChecker]: L987-7 has no Hoare annotation [2020-07-10 19:04:18,063 WARN L170 areAnnotationChecker]: L987-19 has no Hoare annotation [2020-07-10 19:04:18,063 WARN L170 areAnnotationChecker]: L990-31 has no Hoare annotation [2020-07-10 19:04:18,063 WARN L170 areAnnotationChecker]: L990-31 has no Hoare annotation [2020-07-10 19:04:18,063 WARN L170 areAnnotationChecker]: L990-32 has no Hoare annotation [2020-07-10 19:04:18,063 WARN L170 areAnnotationChecker]: L990-1 has no Hoare annotation [2020-07-10 19:04:18,064 WARN L170 areAnnotationChecker]: L990-1 has no Hoare annotation [2020-07-10 19:04:18,064 WARN L170 areAnnotationChecker]: L994-2 has no Hoare annotation [2020-07-10 19:04:18,064 WARN L170 areAnnotationChecker]: L994-2 has no Hoare annotation [2020-07-10 19:04:18,064 WARN L170 areAnnotationChecker]: L994-2 has no Hoare annotation [2020-07-10 19:04:18,064 WARN L170 areAnnotationChecker]: L990-2 has no Hoare annotation [2020-07-10 19:04:18,064 WARN L170 areAnnotationChecker]: L990-4 has no Hoare annotation [2020-07-10 19:04:18,064 WARN L170 areAnnotationChecker]: L994-3 has no Hoare annotation [2020-07-10 19:04:18,065 WARN L170 areAnnotationChecker]: L996-16 has no Hoare annotation [2020-07-10 19:04:18,065 WARN L170 areAnnotationChecker]: L996-16 has no Hoare annotation [2020-07-10 19:04:18,065 WARN L170 areAnnotationChecker]: L990-5 has no Hoare annotation [2020-07-10 19:04:18,065 WARN L170 areAnnotationChecker]: L1008 has no Hoare annotation [2020-07-10 19:04:18,065 WARN L170 areAnnotationChecker]: L1008 has no Hoare annotation [2020-07-10 19:04:18,065 WARN L170 areAnnotationChecker]: L1008 has no Hoare annotation [2020-07-10 19:04:18,065 WARN L170 areAnnotationChecker]: L996-1 has no Hoare annotation [2020-07-10 19:04:18,066 WARN L170 areAnnotationChecker]: L996-17 has no Hoare annotation [2020-07-10 19:04:18,066 WARN L170 areAnnotationChecker]: L990-6 has no Hoare annotation [2020-07-10 19:04:18,066 WARN L170 areAnnotationChecker]: L1002-2 has no Hoare annotation [2020-07-10 19:04:18,066 WARN L170 areAnnotationChecker]: L1004 has no Hoare annotation [2020-07-10 19:04:18,066 WARN L170 areAnnotationChecker]: L996-2 has no Hoare annotation [2020-07-10 19:04:18,066 WARN L170 areAnnotationChecker]: L996-2 has no Hoare annotation [2020-07-10 19:04:18,066 WARN L170 areAnnotationChecker]: L997 has no Hoare annotation [2020-07-10 19:04:18,066 WARN L170 areAnnotationChecker]: L990-7 has no Hoare annotation [2020-07-10 19:04:18,067 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-10 19:04:18,067 WARN L170 areAnnotationChecker]: L1005 has no Hoare annotation [2020-07-10 19:04:18,067 WARN L170 areAnnotationChecker]: L996-3 has no Hoare annotation [2020-07-10 19:04:18,067 WARN L170 areAnnotationChecker]: L996-6 has no Hoare annotation [2020-07-10 19:04:18,067 WARN L170 areAnnotationChecker]: L996-6 has no Hoare annotation [2020-07-10 19:04:18,067 WARN L170 areAnnotationChecker]: L997-1 has no Hoare annotation [2020-07-10 19:04:18,067 WARN L170 areAnnotationChecker]: L990-8 has no Hoare annotation [2020-07-10 19:04:18,067 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-10 19:04:18,068 WARN L170 areAnnotationChecker]: L1005-1 has no Hoare annotation [2020-07-10 19:04:18,068 WARN L170 areAnnotationChecker]: L996-4 has no Hoare annotation [2020-07-10 19:04:18,068 WARN L170 areAnnotationChecker]: L996-7 has no Hoare annotation [2020-07-10 19:04:18,068 WARN L170 areAnnotationChecker]: L996-12 has no Hoare annotation [2020-07-10 19:04:18,068 WARN L170 areAnnotationChecker]: L990-9 has no Hoare annotation [2020-07-10 19:04:18,068 WARN L170 areAnnotationChecker]: L1005-2 has no Hoare annotation [2020-07-10 19:04:18,068 WARN L170 areAnnotationChecker]: L996-8 has no Hoare annotation [2020-07-10 19:04:18,068 WARN L170 areAnnotationChecker]: L996-13 has no Hoare annotation [2020-07-10 19:04:18,069 WARN L170 areAnnotationChecker]: L990-10 has no Hoare annotation [2020-07-10 19:04:18,069 WARN L170 areAnnotationChecker]: L1006 has no Hoare annotation [2020-07-10 19:04:18,069 WARN L170 areAnnotationChecker]: L996-9 has no Hoare annotation [2020-07-10 19:04:18,069 WARN L170 areAnnotationChecker]: L996-14 has no Hoare annotation [2020-07-10 19:04:18,069 WARN L170 areAnnotationChecker]: L990-11 has no Hoare annotation [2020-07-10 19:04:18,069 WARN L170 areAnnotationChecker]: L1006-1 has no Hoare annotation [2020-07-10 19:04:18,069 WARN L170 areAnnotationChecker]: L1006-1 has no Hoare annotation [2020-07-10 19:04:18,070 WARN L170 areAnnotationChecker]: L996-10 has no Hoare annotation [2020-07-10 19:04:18,070 WARN L170 areAnnotationChecker]: L996-10 has no Hoare annotation [2020-07-10 19:04:18,070 WARN L170 areAnnotationChecker]: L996-15 has no Hoare annotation [2020-07-10 19:04:18,070 WARN L170 areAnnotationChecker]: L996-15 has no Hoare annotation [2020-07-10 19:04:18,070 WARN L170 areAnnotationChecker]: L990-12 has no Hoare annotation [2020-07-10 19:04:18,070 WARN L170 areAnnotationChecker]: L990-12 has no Hoare annotation [2020-07-10 19:04:18,070 WARN L170 areAnnotationChecker]: L1006-2 has no Hoare annotation [2020-07-10 19:04:18,070 WARN L170 areAnnotationChecker]: L1006-4 has no Hoare annotation [2020-07-10 19:04:18,071 WARN L170 areAnnotationChecker]: L990-13 has no Hoare annotation [2020-07-10 19:04:18,071 WARN L170 areAnnotationChecker]: L990-21 has no Hoare annotation [2020-07-10 19:04:18,071 WARN L170 areAnnotationChecker]: L1007 has no Hoare annotation [2020-07-10 19:04:18,071 WARN L170 areAnnotationChecker]: L1006-5 has no Hoare annotation [2020-07-10 19:04:18,071 WARN L170 areAnnotationChecker]: L990-14 has no Hoare annotation [2020-07-10 19:04:18,071 WARN L170 areAnnotationChecker]: L990-22 has no Hoare annotation [2020-07-10 19:04:18,071 WARN L170 areAnnotationChecker]: L1007-1 has no Hoare annotation [2020-07-10 19:04:18,072 WARN L170 areAnnotationChecker]: L990-15 has no Hoare annotation [2020-07-10 19:04:18,072 WARN L170 areAnnotationChecker]: L990-23 has no Hoare annotation [2020-07-10 19:04:18,072 WARN L170 areAnnotationChecker]: L990-23 has no Hoare annotation [2020-07-10 19:04:18,072 WARN L170 areAnnotationChecker]: L1007-2 has no Hoare annotation [2020-07-10 19:04:18,072 WARN L170 areAnnotationChecker]: L990-16 has no Hoare annotation [2020-07-10 19:04:18,072 WARN L170 areAnnotationChecker]: L990-24 has no Hoare annotation [2020-07-10 19:04:18,072 WARN L170 areAnnotationChecker]: L990-28 has no Hoare annotation [2020-07-10 19:04:18,072 WARN L170 areAnnotationChecker]: L990-17 has no Hoare annotation [2020-07-10 19:04:18,073 WARN L170 areAnnotationChecker]: L990-25 has no Hoare annotation [2020-07-10 19:04:18,073 WARN L170 areAnnotationChecker]: L990-29 has no Hoare annotation [2020-07-10 19:04:18,073 WARN L170 areAnnotationChecker]: L990-18 has no Hoare annotation [2020-07-10 19:04:18,073 WARN L170 areAnnotationChecker]: L990-26 has no Hoare annotation [2020-07-10 19:04:18,073 WARN L170 areAnnotationChecker]: L990-30 has no Hoare annotation [2020-07-10 19:04:18,073 WARN L170 areAnnotationChecker]: L990-19 has no Hoare annotation [2020-07-10 19:04:18,073 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-10 19:04:18,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.07 07:04:18 BoogieIcfgContainer [2020-07-10 19:04:18,080 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-10 19:04:18,084 INFO L168 Benchmark]: Toolchain (without parser) took 3308.94 ms. Allocated memory was 145.2 MB in the beginning and 248.5 MB in the end (delta: 103.3 MB). Free memory was 102.5 MB in the beginning and 188.6 MB in the end (delta: -86.1 MB). Peak memory consumption was 17.2 MB. Max. memory is 7.1 GB. [2020-07-10 19:04:18,085 INFO L168 Benchmark]: CDTParser took 0.86 ms. Allocated memory is still 145.2 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-10 19:04:18,086 INFO L168 Benchmark]: CACSL2BoogieTranslator took 718.33 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 102.3 MB in the beginning and 169.8 MB in the end (delta: -67.5 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. [2020-07-10 19:04:18,086 INFO L168 Benchmark]: Boogie Preprocessor took 74.40 ms. Allocated memory is still 202.9 MB. Free memory was 169.8 MB in the beginning and 165.7 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-07-10 19:04:18,087 INFO L168 Benchmark]: RCFGBuilder took 868.10 ms. Allocated memory is still 202.9 MB. Free memory was 165.7 MB in the beginning and 96.9 MB in the end (delta: 68.8 MB). Peak memory consumption was 68.8 MB. Max. memory is 7.1 GB. [2020-07-10 19:04:18,088 INFO L168 Benchmark]: TraceAbstraction took 1639.90 ms. Allocated memory was 202.9 MB in the beginning and 248.5 MB in the end (delta: 45.6 MB). Free memory was 96.2 MB in the beginning and 188.6 MB in the end (delta: -92.5 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-10 19:04:18,092 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 0.86 ms. Allocated memory is still 145.2 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 718.33 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 102.3 MB in the beginning and 169.8 MB in the end (delta: -67.5 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 74.40 ms. Allocated memory is still 202.9 MB. Free memory was 169.8 MB in the beginning and 165.7 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 868.10 ms. Allocated memory is still 202.9 MB. Free memory was 165.7 MB in the beginning and 96.9 MB in the end (delta: 68.8 MB). Peak memory consumption was 68.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1639.90 ms. Allocated memory was 202.9 MB in the beginning and 248.5 MB in the end (delta: 45.6 MB). Free memory was 96.2 MB in the beginning and 188.6 MB in the end (delta: -92.5 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 996]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L985] SLL* head = malloc(sizeof(SLL)); [L986] head->next = ((void*)0) [L987] COND FALSE !(__VERIFIER_nondet_int()) [L987] COND TRUE __VERIFIER_nondet_int() [L987] head->data = 1 [L987] head->opt = head [L988] SLL* x = head; [L990] COND FALSE !(__VERIFIER_nondet_int()) [L993] x = head [L994] COND TRUE x != ((void*)0) [L996] EXPR x->data [L996] EXPR x->data == 2 && x->opt == x [L996] COND TRUE !(x->data == 2 && x->opt == x) [L996] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 96 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 103 SDtfs, 0 SDslu, 5 SDs, 0 SdLazy, 98 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=96occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...