/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/forester-heap/dll-simple-white-blue-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-18 05:14:44,553 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-18 05:14:44,555 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-18 05:14:44,566 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-18 05:14:44,567 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-18 05:14:44,568 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-18 05:14:44,569 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-18 05:14:44,571 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-18 05:14:44,572 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-18 05:14:44,573 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-18 05:14:44,574 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-18 05:14:44,575 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-18 05:14:44,575 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-18 05:14:44,576 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-18 05:14:44,577 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-18 05:14:44,578 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-18 05:14:44,579 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-18 05:14:44,580 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-18 05:14:44,582 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-18 05:14:44,583 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-18 05:14:44,585 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-18 05:14:44,586 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-18 05:14:44,587 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-18 05:14:44,587 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-18 05:14:44,589 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-18 05:14:44,589 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-18 05:14:44,590 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-18 05:14:44,590 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-18 05:14:44,591 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-18 05:14:44,592 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-18 05:14:44,592 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-18 05:14:44,593 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-18 05:14:44,593 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-18 05:14:44,594 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-18 05:14:44,595 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-18 05:14:44,595 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-18 05:14:44,596 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-18 05:14:44,596 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-18 05:14:44,596 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-18 05:14:44,597 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-18 05:14:44,597 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-18 05:14:44,598 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 05:14:44,607 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-18 05:14:44,607 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-18 05:14:44,608 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-18 05:14:44,608 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-18 05:14:44,608 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-18 05:14:44,609 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-18 05:14:44,609 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-18 05:14:44,609 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-18 05:14:44,609 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-18 05:14:44,609 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-18 05:14:44,610 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-18 05:14:44,610 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-18 05:14:44,610 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-18 05:14:44,610 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-18 05:14:44,610 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-18 05:14:44,610 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-18 05:14:44,611 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-18 05:14:44,611 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-18 05:14:44,611 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 05:14:44,611 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-18 05:14:44,611 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-18 05:14:44,612 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-18 05:14:44,612 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-07-18 05:14:44,872 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-18 05:14:44,889 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-18 05:14:44,892 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-18 05:14:44,894 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-18 05:14:44,894 INFO L275 PluginConnector]: CDTParser initialized [2020-07-18 05:14:44,895 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-simple-white-blue-1.i [2020-07-18 05:14:44,970 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68916154c/a9bb0bd4df6847d1b57df77ae0d443df/FLAGcf8ccf272 [2020-07-18 05:14:45,490 INFO L306 CDTParser]: Found 1 translation units. [2020-07-18 05:14:45,491 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-simple-white-blue-1.i [2020-07-18 05:14:45,504 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68916154c/a9bb0bd4df6847d1b57df77ae0d443df/FLAGcf8ccf272 [2020-07-18 05:14:45,808 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68916154c/a9bb0bd4df6847d1b57df77ae0d443df [2020-07-18 05:14:45,817 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-18 05:14:45,819 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-18 05:14:45,820 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-18 05:14:45,820 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-18 05:14:45,824 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-18 05:14:45,825 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 05:14:45" (1/1) ... [2020-07-18 05:14:45,828 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@84d4d95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 05:14:45, skipping insertion in model container [2020-07-18 05:14:45,828 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 05:14:45" (1/1) ... [2020-07-18 05:14:45,835 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-18 05:14:45,879 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-18 05:14:46,292 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 05:14:46,302 INFO L203 MainTranslator]: Completed pre-run [2020-07-18 05:14:46,364 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 05:14:46,415 INFO L208 MainTranslator]: Completed translation [2020-07-18 05:14:46,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 05:14:46 WrapperNode [2020-07-18 05:14:46,416 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-18 05:14:46,417 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-18 05:14:46,417 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-18 05:14:46,417 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-18 05:14:46,430 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 05:14:46" (1/1) ... [2020-07-18 05:14:46,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 05:14:46" (1/1) ... [2020-07-18 05:14:46,446 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 05:14:46" (1/1) ... [2020-07-18 05:14:46,446 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 05:14:46" (1/1) ... [2020-07-18 05:14:46,471 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 05:14:46" (1/1) ... [2020-07-18 05:14:46,478 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 05:14:46" (1/1) ... [2020-07-18 05:14:46,481 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 05:14:46" (1/1) ... [2020-07-18 05:14:46,487 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-18 05:14:46,488 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-18 05:14:46,488 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-18 05:14:46,488 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-18 05:14:46,489 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 05:14:46" (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 05:14:46,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-18 05:14:46,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-18 05:14:46,553 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-18 05:14:46,553 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-07-18 05:14:46,554 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-07-18 05:14:46,554 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-07-18 05:14:46,554 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-07-18 05:14:46,554 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-07-18 05:14:46,554 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-07-18 05:14:46,554 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-07-18 05:14:46,555 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-07-18 05:14:46,555 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-07-18 05:14:46,555 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-07-18 05:14:46,555 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-07-18 05:14:46,555 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-07-18 05:14:46,555 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-07-18 05:14:46,556 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-07-18 05:14:46,556 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-07-18 05:14:46,556 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-07-18 05:14:46,556 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-07-18 05:14:46,556 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-07-18 05:14:46,557 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-07-18 05:14:46,557 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-07-18 05:14:46,557 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-07-18 05:14:46,557 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-07-18 05:14:46,557 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-07-18 05:14:46,557 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-07-18 05:14:46,558 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-07-18 05:14:46,558 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-07-18 05:14:46,558 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-07-18 05:14:46,558 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-07-18 05:14:46,558 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-07-18 05:14:46,558 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-07-18 05:14:46,559 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-07-18 05:14:46,559 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-07-18 05:14:46,559 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-07-18 05:14:46,559 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-07-18 05:14:46,559 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-07-18 05:14:46,559 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-07-18 05:14:46,560 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-07-18 05:14:46,560 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-07-18 05:14:46,560 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-07-18 05:14:46,560 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-07-18 05:14:46,560 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-07-18 05:14:46,560 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-07-18 05:14:46,561 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-07-18 05:14:46,561 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-07-18 05:14:46,561 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-07-18 05:14:46,561 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-07-18 05:14:46,561 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-07-18 05:14:46,561 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-07-18 05:14:46,561 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-07-18 05:14:46,562 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-07-18 05:14:46,562 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-18 05:14:46,562 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-07-18 05:14:46,562 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-07-18 05:14:46,562 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-18 05:14:46,562 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-07-18 05:14:46,563 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-07-18 05:14:46,563 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-07-18 05:14:46,563 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-07-18 05:14:46,563 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-07-18 05:14:46,563 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-18 05:14:46,563 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-07-18 05:14:46,563 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-07-18 05:14:46,564 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-07-18 05:14:46,564 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-18 05:14:46,564 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-07-18 05:14:46,564 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-07-18 05:14:46,564 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-07-18 05:14:46,564 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-07-18 05:14:46,564 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-07-18 05:14:46,565 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-07-18 05:14:46,565 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-07-18 05:14:46,565 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-07-18 05:14:46,565 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-07-18 05:14:46,565 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-07-18 05:14:46,565 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-07-18 05:14:46,566 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-07-18 05:14:46,566 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-07-18 05:14:46,566 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-07-18 05:14:46,566 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-07-18 05:14:46,566 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-07-18 05:14:46,566 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-07-18 05:14:46,567 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-07-18 05:14:46,567 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-07-18 05:14:46,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-07-18 05:14:46,567 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-07-18 05:14:46,567 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-07-18 05:14:46,567 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-07-18 05:14:46,567 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-07-18 05:14:46,568 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-07-18 05:14:46,568 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-07-18 05:14:46,568 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-07-18 05:14:46,568 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-07-18 05:14:46,568 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-07-18 05:14:46,568 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-07-18 05:14:46,569 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-07-18 05:14:46,569 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-07-18 05:14:46,569 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-07-18 05:14:46,569 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-07-18 05:14:46,569 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-07-18 05:14:46,569 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-07-18 05:14:46,569 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-07-18 05:14:46,570 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-07-18 05:14:46,570 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-07-18 05:14:46,570 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-18 05:14:46,570 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-18 05:14:46,570 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-18 05:14:46,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-18 05:14:46,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-18 05:14:46,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-18 05:14:46,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-18 05:14:46,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-18 05:14:46,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-18 05:14:46,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-18 05:14:46,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-18 05:14:47,264 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-18 05:14:47,265 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-07-18 05:14:47,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 05:14:47 BoogieIcfgContainer [2020-07-18 05:14:47,269 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-18 05:14:47,270 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-18 05:14:47,270 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-18 05:14:47,273 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-18 05:14:47,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.07 05:14:45" (1/3) ... [2020-07-18 05:14:47,275 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4050da32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 05:14:47, skipping insertion in model container [2020-07-18 05:14:47,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 05:14:46" (2/3) ... [2020-07-18 05:14:47,275 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4050da32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 05:14:47, skipping insertion in model container [2020-07-18 05:14:47,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 05:14:47" (3/3) ... [2020-07-18 05:14:47,277 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-simple-white-blue-1.i [2020-07-18 05:14:47,288 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-18 05:14:47,296 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-18 05:14:47,307 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-18 05:14:47,326 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-18 05:14:47,326 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-18 05:14:47,326 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-18 05:14:47,326 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-18 05:14:47,327 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-18 05:14:47,327 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-18 05:14:47,327 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-18 05:14:47,327 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-18 05:14:47,352 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states. [2020-07-18 05:14:47,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-07-18 05:14:47,363 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 05:14:47,364 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 05:14:47,364 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 05:14:47,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 05:14:47,369 INFO L82 PathProgramCache]: Analyzing trace with hash 7806853, now seen corresponding path program 1 times [2020-07-18 05:14:47,378 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 05:14:47,378 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2127016107] [2020-07-18 05:14:47,379 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 05:14:47,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 05:14:47,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 05:14:47,604 INFO L280 TraceCheckUtils]: 0: Hoare triple {108#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {101#true} is VALID [2020-07-18 05:14:47,605 INFO L280 TraceCheckUtils]: 1: Hoare triple {101#true} #valid := #valid[0 := 0]; {101#true} is VALID [2020-07-18 05:14:47,605 INFO L280 TraceCheckUtils]: 2: Hoare triple {101#true} assume 0 < #StackHeapBarrier; {101#true} is VALID [2020-07-18 05:14:47,605 INFO L280 TraceCheckUtils]: 3: Hoare triple {101#true} assume true; {101#true} is VALID [2020-07-18 05:14:47,606 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {101#true} {101#true} #183#return; {101#true} is VALID [2020-07-18 05:14:47,609 INFO L263 TraceCheckUtils]: 0: Hoare triple {101#true} call ULTIMATE.init(); {108#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-18 05:14:47,610 INFO L280 TraceCheckUtils]: 1: Hoare triple {108#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {101#true} is VALID [2020-07-18 05:14:47,610 INFO L280 TraceCheckUtils]: 2: Hoare triple {101#true} #valid := #valid[0 := 0]; {101#true} is VALID [2020-07-18 05:14:47,610 INFO L280 TraceCheckUtils]: 3: Hoare triple {101#true} assume 0 < #StackHeapBarrier; {101#true} is VALID [2020-07-18 05:14:47,610 INFO L280 TraceCheckUtils]: 4: Hoare triple {101#true} assume true; {101#true} is VALID [2020-07-18 05:14:47,611 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {101#true} {101#true} #183#return; {101#true} is VALID [2020-07-18 05:14:47,611 INFO L263 TraceCheckUtils]: 6: Hoare triple {101#true} call #t~ret20 := main(); {101#true} is VALID [2020-07-18 05:14:47,612 INFO L280 TraceCheckUtils]: 7: Hoare triple {101#true} SUMMARY for call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(12); srcloc: mainENTRY {101#true} is VALID [2020-07-18 05:14:47,612 INFO L280 TraceCheckUtils]: 8: Hoare triple {101#true} ~head~0.base, ~head~0.offset := #t~malloc0.base, #t~malloc0.offset; {101#true} is VALID [2020-07-18 05:14:47,612 INFO L280 TraceCheckUtils]: 9: Hoare triple {101#true} SUMMARY for call write~$Pointer$(0, 0, ~head~0.base, ~head~0.offset, 4); srcloc: L990 {101#true} is VALID [2020-07-18 05:14:47,613 INFO L280 TraceCheckUtils]: 10: Hoare triple {101#true} SUMMARY for call write~$Pointer$(0, 0, ~head~0.base, 4 + ~head~0.offset, 4); srcloc: L990-1 {101#true} is VALID [2020-07-18 05:14:47,613 INFO L280 TraceCheckUtils]: 11: Hoare triple {101#true} SUMMARY for call write~int(0, ~head~0.base, 8 + ~head~0.offset, 4); srcloc: L991 {101#true} is VALID [2020-07-18 05:14:47,613 INFO L280 TraceCheckUtils]: 12: Hoare triple {101#true} ~x~0.base, ~x~0.offset := ~head~0.base, ~head~0.offset; {101#true} is VALID [2020-07-18 05:14:47,614 INFO L280 TraceCheckUtils]: 13: Hoare triple {101#true} assume !true; {102#false} is VALID [2020-07-18 05:14:47,615 INFO L280 TraceCheckUtils]: 14: Hoare triple {102#false} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {102#false} is VALID [2020-07-18 05:14:47,615 INFO L280 TraceCheckUtils]: 15: Hoare triple {102#false} assume 0 != #t~nondet5; {102#false} is VALID [2020-07-18 05:14:47,615 INFO L280 TraceCheckUtils]: 16: Hoare triple {102#false} havoc #t~nondet5; {102#false} is VALID [2020-07-18 05:14:47,616 INFO L280 TraceCheckUtils]: 17: Hoare triple {102#false} SUMMARY for call #t~malloc6.base, #t~malloc6.offset := #Ultimate.allocOnHeap(12); srcloc: L1009 {102#false} is VALID [2020-07-18 05:14:47,616 INFO L280 TraceCheckUtils]: 18: Hoare triple {102#false} ~x~0.base, ~x~0.offset := #t~malloc6.base, #t~malloc6.offset; {102#false} is VALID [2020-07-18 05:14:47,616 INFO L280 TraceCheckUtils]: 19: Hoare triple {102#false} SUMMARY for call write~int(1, ~x~0.base, 8 + ~x~0.offset, 4); srcloc: L1010 {102#false} is VALID [2020-07-18 05:14:47,617 INFO L280 TraceCheckUtils]: 20: Hoare triple {102#false} SUMMARY for call write~$Pointer$(~head~0.base, ~head~0.offset, ~x~0.base, ~x~0.offset, 4); srcloc: L1010-1 {102#false} is VALID [2020-07-18 05:14:47,617 INFO L280 TraceCheckUtils]: 21: Hoare triple {102#false} SUMMARY for call write~$Pointer$(0, 0, ~x~0.base, 4 + ~x~0.offset, 4); srcloc: L1011 {102#false} is VALID [2020-07-18 05:14:47,618 INFO L280 TraceCheckUtils]: 22: Hoare triple {102#false} ~head~0.base, ~head~0.offset := ~x~0.base, ~x~0.offset; {102#false} is VALID [2020-07-18 05:14:47,618 INFO L280 TraceCheckUtils]: 23: Hoare triple {102#false} ~x~0.base, ~x~0.offset := ~head~0.base, ~head~0.offset; {102#false} is VALID [2020-07-18 05:14:47,618 INFO L280 TraceCheckUtils]: 24: Hoare triple {102#false} assume !true; {102#false} is VALID [2020-07-18 05:14:47,618 INFO L280 TraceCheckUtils]: 25: Hoare triple {102#false} SUMMARY for call #t~mem16.base, #t~mem16.offset := read~$Pointer$(~x~0.base, ~x~0.offset, 4); srcloc: L1042-6 {102#false} is VALID [2020-07-18 05:14:47,619 INFO L280 TraceCheckUtils]: 26: Hoare triple {102#false} ~x~0.base, ~x~0.offset := #t~mem16.base, #t~mem16.offset; {102#false} is VALID [2020-07-18 05:14:47,619 INFO L280 TraceCheckUtils]: 27: Hoare triple {102#false} havoc #t~mem16.base, #t~mem16.offset; {102#false} is VALID [2020-07-18 05:14:47,619 INFO L280 TraceCheckUtils]: 28: Hoare triple {102#false} assume !!(~x~0.base != 0 || ~x~0.offset != 0); {102#false} is VALID [2020-07-18 05:14:47,620 INFO L280 TraceCheckUtils]: 29: Hoare triple {102#false} SUMMARY for call #t~mem17 := read~int(~x~0.base, 8 + ~x~0.offset, 4); srcloc: L1051 {102#false} is VALID [2020-07-18 05:14:47,620 INFO L280 TraceCheckUtils]: 30: Hoare triple {102#false} assume 1 != #t~mem17; {102#false} is VALID [2020-07-18 05:14:47,620 INFO L280 TraceCheckUtils]: 31: Hoare triple {102#false} havoc #t~mem17; {102#false} is VALID [2020-07-18 05:14:47,621 INFO L280 TraceCheckUtils]: 32: Hoare triple {102#false} assume !false; {102#false} is VALID [2020-07-18 05:14:47,625 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 05:14:47,625 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2127016107] [2020-07-18 05:14:47,627 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 05:14:47,628 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-18 05:14:47,628 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486147721] [2020-07-18 05:14:47,634 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-07-18 05:14:47,637 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 05:14:47,641 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-18 05:14:47,696 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 33 edges. 33 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:14:47,696 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-18 05:14:47,697 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 05:14:47,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-18 05:14:47,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 05:14:47,706 INFO L87 Difference]: Start difference. First operand 98 states. Second operand 3 states. [2020-07-18 05:14:48,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:14:48,220 INFO L93 Difference]: Finished difference Result 168 states and 197 transitions. [2020-07-18 05:14:48,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-18 05:14:48,221 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-07-18 05:14:48,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 05:14:48,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 05:14:48,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 197 transitions. [2020-07-18 05:14:48,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 05:14:48,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 197 transitions. [2020-07-18 05:14:48,243 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 197 transitions. [2020-07-18 05:14:48,487 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 197 edges. 197 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:14:48,505 INFO L225 Difference]: With dead ends: 168 [2020-07-18 05:14:48,505 INFO L226 Difference]: Without dead ends: 85 [2020-07-18 05:14:48,509 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 [2020-07-18 05:14:48,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-07-18 05:14:48,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-07-18 05:14:48,608 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 05:14:48,609 INFO L82 GeneralOperation]: Start isEquivalent. First operand 85 states. Second operand 85 states. [2020-07-18 05:14:48,609 INFO L74 IsIncluded]: Start isIncluded. First operand 85 states. Second operand 85 states. [2020-07-18 05:14:48,610 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 85 states. [2020-07-18 05:14:48,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:14:48,617 INFO L93 Difference]: Finished difference Result 85 states and 91 transitions. [2020-07-18 05:14:48,617 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 91 transitions. [2020-07-18 05:14:48,618 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 05:14:48,619 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 05:14:48,619 INFO L74 IsIncluded]: Start isIncluded. First operand 85 states. Second operand 85 states. [2020-07-18 05:14:48,619 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 85 states. [2020-07-18 05:14:48,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:14:48,626 INFO L93 Difference]: Finished difference Result 85 states and 91 transitions. [2020-07-18 05:14:48,626 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 91 transitions. [2020-07-18 05:14:48,627 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 05:14:48,627 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 05:14:48,628 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 05:14:48,628 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 05:14:48,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-07-18 05:14:48,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 91 transitions. [2020-07-18 05:14:48,635 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 91 transitions. Word has length 33 [2020-07-18 05:14:48,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 05:14:48,635 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 91 transitions. [2020-07-18 05:14:48,635 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-18 05:14:48,635 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 85 states and 91 transitions. [2020-07-18 05:14:48,734 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 91 edges. 91 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:14:48,734 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 91 transitions. [2020-07-18 05:14:48,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-07-18 05:14:48,736 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 05:14:48,736 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 05:14:48,737 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-18 05:14:48,737 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 05:14:48,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 05:14:48,737 INFO L82 PathProgramCache]: Analyzing trace with hash 144032108, now seen corresponding path program 1 times [2020-07-18 05:14:48,737 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 05:14:48,738 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [795193593] [2020-07-18 05:14:48,738 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 05:14:48,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-18 05:14:48,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-18 05:14:48,882 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-18 05:14:48,882 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-18 05:14:48,883 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-18 05:14:48,951 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-18 05:14:48,952 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-18 05:14:48,952 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-18 05:14:48,952 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-18 05:14:48,952 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-18 05:14:48,952 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-18 05:14:48,952 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-18 05:14:48,953 WARN L170 areAnnotationChecker]: L989 has no Hoare annotation [2020-07-18 05:14:48,953 WARN L170 areAnnotationChecker]: L-1-1 has no Hoare annotation [2020-07-18 05:14:48,953 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-18 05:14:48,953 WARN L170 areAnnotationChecker]: L990 has no Hoare annotation [2020-07-18 05:14:48,953 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-18 05:14:48,953 WARN L170 areAnnotationChecker]: L990-1 has no Hoare annotation [2020-07-18 05:14:48,953 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-18 05:14:48,954 WARN L170 areAnnotationChecker]: L991 has no Hoare annotation [2020-07-18 05:14:48,954 WARN L170 areAnnotationChecker]: L992 has no Hoare annotation [2020-07-18 05:14:48,954 WARN L170 areAnnotationChecker]: L1004 has no Hoare annotation [2020-07-18 05:14:48,954 WARN L170 areAnnotationChecker]: L1004 has no Hoare annotation [2020-07-18 05:14:48,954 WARN L170 areAnnotationChecker]: L997-5 has no Hoare annotation [2020-07-18 05:14:48,954 WARN L170 areAnnotationChecker]: L997-1 has no Hoare annotation [2020-07-18 05:14:48,954 WARN L170 areAnnotationChecker]: L997-1 has no Hoare annotation [2020-07-18 05:14:48,955 WARN L170 areAnnotationChecker]: L1008 has no Hoare annotation [2020-07-18 05:14:48,955 WARN L170 areAnnotationChecker]: L1008 has no Hoare annotation [2020-07-18 05:14:48,955 WARN L170 areAnnotationChecker]: L997-2 has no Hoare annotation [2020-07-18 05:14:48,955 WARN L170 areAnnotationChecker]: L997-4 has no Hoare annotation [2020-07-18 05:14:48,955 WARN L170 areAnnotationChecker]: L1008-1 has no Hoare annotation [2020-07-18 05:14:48,955 WARN L170 areAnnotationChecker]: L1008-3 has no Hoare annotation [2020-07-18 05:14:48,955 WARN L170 areAnnotationChecker]: L1000 has no Hoare annotation [2020-07-18 05:14:48,956 WARN L170 areAnnotationChecker]: L1009 has no Hoare annotation [2020-07-18 05:14:48,956 WARN L170 areAnnotationChecker]: L1018 has no Hoare annotation [2020-07-18 05:14:48,956 WARN L170 areAnnotationChecker]: L1000-1 has no Hoare annotation [2020-07-18 05:14:48,956 WARN L170 areAnnotationChecker]: L1009-1 has no Hoare annotation [2020-07-18 05:14:48,956 WARN L170 areAnnotationChecker]: L1019-5 has no Hoare annotation [2020-07-18 05:14:48,956 WARN L170 areAnnotationChecker]: L1019-5 has no Hoare annotation [2020-07-18 05:14:48,956 WARN L170 areAnnotationChecker]: L1000-2 has no Hoare annotation [2020-07-18 05:14:48,957 WARN L170 areAnnotationChecker]: L1010 has no Hoare annotation [2020-07-18 05:14:48,957 WARN L170 areAnnotationChecker]: L1019-6 has no Hoare annotation [2020-07-18 05:14:48,957 WARN L170 areAnnotationChecker]: L1019-1 has no Hoare annotation [2020-07-18 05:14:48,957 WARN L170 areAnnotationChecker]: L1019-1 has no Hoare annotation [2020-07-18 05:14:48,957 WARN L170 areAnnotationChecker]: L1001 has no Hoare annotation [2020-07-18 05:14:48,957 WARN L170 areAnnotationChecker]: L1010-1 has no Hoare annotation [2020-07-18 05:14:48,957 WARN L170 areAnnotationChecker]: L1026 has no Hoare annotation [2020-07-18 05:14:48,957 WARN L170 areAnnotationChecker]: L1019-2 has no Hoare annotation [2020-07-18 05:14:48,958 WARN L170 areAnnotationChecker]: L1019-4 has no Hoare annotation [2020-07-18 05:14:48,958 WARN L170 areAnnotationChecker]: L1001-1 has no Hoare annotation [2020-07-18 05:14:48,958 WARN L170 areAnnotationChecker]: L1011 has no Hoare annotation [2020-07-18 05:14:48,958 WARN L170 areAnnotationChecker]: L1026-1 has no Hoare annotation [2020-07-18 05:14:48,958 WARN L170 areAnnotationChecker]: L1021 has no Hoare annotation [2020-07-18 05:14:48,958 WARN L170 areAnnotationChecker]: L1002 has no Hoare annotation [2020-07-18 05:14:48,958 WARN L170 areAnnotationChecker]: L1012 has no Hoare annotation [2020-07-18 05:14:48,959 WARN L170 areAnnotationChecker]: L1027 has no Hoare annotation [2020-07-18 05:14:48,959 WARN L170 areAnnotationChecker]: L1021-1 has no Hoare annotation [2020-07-18 05:14:48,959 WARN L170 areAnnotationChecker]: L1021-1 has no Hoare annotation [2020-07-18 05:14:48,959 WARN L170 areAnnotationChecker]: L1002-1 has no Hoare annotation [2020-07-18 05:14:48,959 WARN L170 areAnnotationChecker]: L1031 has no Hoare annotation [2020-07-18 05:14:48,959 WARN L170 areAnnotationChecker]: L1027-1 has no Hoare annotation [2020-07-18 05:14:48,959 WARN L170 areAnnotationChecker]: L1021-2 has no Hoare annotation [2020-07-18 05:14:48,960 WARN L170 areAnnotationChecker]: L1021-4 has no Hoare annotation [2020-07-18 05:14:48,960 WARN L170 areAnnotationChecker]: L1002-2 has no Hoare annotation [2020-07-18 05:14:48,960 WARN L170 areAnnotationChecker]: L1042-5 has no Hoare annotation [2020-07-18 05:14:48,960 WARN L170 areAnnotationChecker]: L1042-5 has no Hoare annotation [2020-07-18 05:14:48,960 WARN L170 areAnnotationChecker]: L1027-2 has no Hoare annotation [2020-07-18 05:14:48,960 WARN L170 areAnnotationChecker]: L1022 has no Hoare annotation [2020-07-18 05:14:48,960 WARN L170 areAnnotationChecker]: L1003 has no Hoare annotation [2020-07-18 05:14:48,961 WARN L170 areAnnotationChecker]: L1042-6 has no Hoare annotation [2020-07-18 05:14:48,961 WARN L170 areAnnotationChecker]: L1042-1 has no Hoare annotation [2020-07-18 05:14:48,961 WARN L170 areAnnotationChecker]: L1042-1 has no Hoare annotation [2020-07-18 05:14:48,961 WARN L170 areAnnotationChecker]: L1028 has no Hoare annotation [2020-07-18 05:14:48,961 WARN L170 areAnnotationChecker]: L1022-1 has no Hoare annotation [2020-07-18 05:14:48,961 WARN L170 areAnnotationChecker]: L1003-1 has no Hoare annotation [2020-07-18 05:14:48,961 WARN L170 areAnnotationChecker]: L1048 has no Hoare annotation [2020-07-18 05:14:48,962 WARN L170 areAnnotationChecker]: L1042-2 has no Hoare annotation [2020-07-18 05:14:48,962 WARN L170 areAnnotationChecker]: L1042-4 has no Hoare annotation [2020-07-18 05:14:48,962 WARN L170 areAnnotationChecker]: L1028-1 has no Hoare annotation [2020-07-18 05:14:48,962 WARN L170 areAnnotationChecker]: L1022-2 has no Hoare annotation [2020-07-18 05:14:48,962 WARN L170 areAnnotationChecker]: L1048-1 has no Hoare annotation [2020-07-18 05:14:48,962 WARN L170 areAnnotationChecker]: L1044 has no Hoare annotation [2020-07-18 05:14:48,962 WARN L170 areAnnotationChecker]: L1029 has no Hoare annotation [2020-07-18 05:14:48,962 WARN L170 areAnnotationChecker]: L1049-2 has no Hoare annotation [2020-07-18 05:14:48,963 WARN L170 areAnnotationChecker]: L1049-2 has no Hoare annotation [2020-07-18 05:14:48,963 WARN L170 areAnnotationChecker]: L1049-2 has no Hoare annotation [2020-07-18 05:14:48,963 WARN L170 areAnnotationChecker]: L1044-1 has no Hoare annotation [2020-07-18 05:14:48,963 WARN L170 areAnnotationChecker]: L1029-1 has no Hoare annotation [2020-07-18 05:14:48,963 WARN L170 areAnnotationChecker]: L1049-3 has no Hoare annotation [2020-07-18 05:14:48,963 WARN L170 areAnnotationChecker]: L1051 has no Hoare annotation [2020-07-18 05:14:48,963 WARN L170 areAnnotationChecker]: L1044-2 has no Hoare annotation [2020-07-18 05:14:48,963 WARN L170 areAnnotationChecker]: L1030 has no Hoare annotation [2020-07-18 05:14:48,964 WARN L170 areAnnotationChecker]: L1030 has no Hoare annotation [2020-07-18 05:14:48,964 WARN L170 areAnnotationChecker]: L1062-1 has no Hoare annotation [2020-07-18 05:14:48,964 WARN L170 areAnnotationChecker]: L1062-1 has no Hoare annotation [2020-07-18 05:14:48,964 WARN L170 areAnnotationChecker]: L1062-1 has no Hoare annotation [2020-07-18 05:14:48,964 WARN L170 areAnnotationChecker]: L1051-1 has no Hoare annotation [2020-07-18 05:14:48,964 WARN L170 areAnnotationChecker]: L1051-1 has no Hoare annotation [2020-07-18 05:14:48,964 WARN L170 areAnnotationChecker]: L1033 has no Hoare annotation [2020-07-18 05:14:48,965 WARN L170 areAnnotationChecker]: L1058-2 has no Hoare annotation [2020-07-18 05:14:48,965 WARN L170 areAnnotationChecker]: L1060 has no Hoare annotation [2020-07-18 05:14:48,965 WARN L170 areAnnotationChecker]: L1051-2 has no Hoare annotation [2020-07-18 05:14:48,965 WARN L170 areAnnotationChecker]: L1051-3 has no Hoare annotation [2020-07-18 05:14:48,965 WARN L170 areAnnotationChecker]: L1033-1 has no Hoare annotation [2020-07-18 05:14:48,965 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-18 05:14:48,965 WARN L170 areAnnotationChecker]: L1061 has no Hoare annotation [2020-07-18 05:14:48,966 WARN L170 areAnnotationChecker]: L1052-3 has no Hoare annotation [2020-07-18 05:14:48,966 WARN L170 areAnnotationChecker]: L1052-3 has no Hoare annotation [2020-07-18 05:14:48,966 WARN L170 areAnnotationChecker]: L1052-3 has no Hoare annotation [2020-07-18 05:14:48,966 WARN L170 areAnnotationChecker]: L1052-3 has no Hoare annotation [2020-07-18 05:14:48,966 WARN L170 areAnnotationChecker]: L1051-4 has no Hoare annotation [2020-07-18 05:14:48,966 WARN L170 areAnnotationChecker]: L1033-2 has no Hoare annotation [2020-07-18 05:14:48,966 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-18 05:14:48,966 WARN L170 areAnnotationChecker]: L1061-1 has no Hoare annotation [2020-07-18 05:14:48,967 WARN L170 areAnnotationChecker]: L1052-2 has no Hoare annotation [2020-07-18 05:14:48,967 WARN L170 areAnnotationChecker]: L1052-2 has no Hoare annotation [2020-07-18 05:14:48,967 WARN L170 areAnnotationChecker]: L1053 has no Hoare annotation [2020-07-18 05:14:48,967 WARN L170 areAnnotationChecker]: L1034 has no Hoare annotation [2020-07-18 05:14:48,967 WARN L170 areAnnotationChecker]: L1061-2 has no Hoare annotation [2020-07-18 05:14:48,967 WARN L170 areAnnotationChecker]: L1053-1 has no Hoare annotation [2020-07-18 05:14:48,967 WARN L170 areAnnotationChecker]: L1062 has no Hoare annotation [2020-07-18 05:14:48,968 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. [2020-07-18 05:14:48,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.07 05:14:48 BoogieIcfgContainer [2020-07-18 05:14:48,974 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-18 05:14:48,977 INFO L168 Benchmark]: Toolchain (without parser) took 3158.27 ms. Allocated memory was 144.7 MB in the beginning and 249.6 MB in the end (delta: 104.9 MB). Free memory was 101.6 MB in the beginning and 170.6 MB in the end (delta: -69.0 MB). Peak memory consumption was 35.9 MB. Max. memory is 7.1 GB. [2020-07-18 05:14:48,978 INFO L168 Benchmark]: CDTParser took 0.87 ms. Allocated memory is still 144.7 MB. Free memory was 121.2 MB in the beginning and 121.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-18 05:14:48,979 INFO L168 Benchmark]: CACSL2BoogieTranslator took 596.28 ms. Allocated memory was 144.7 MB in the beginning and 202.4 MB in the end (delta: 57.7 MB). Free memory was 101.2 MB in the beginning and 168.4 MB in the end (delta: -67.2 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. [2020-07-18 05:14:48,980 INFO L168 Benchmark]: Boogie Preprocessor took 70.48 ms. Allocated memory is still 202.4 MB. Free memory was 168.4 MB in the beginning and 163.9 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. [2020-07-18 05:14:48,981 INFO L168 Benchmark]: RCFGBuilder took 781.48 ms. Allocated memory is still 202.4 MB. Free memory was 163.9 MB in the beginning and 93.1 MB in the end (delta: 70.7 MB). Peak memory consumption was 70.7 MB. Max. memory is 7.1 GB. [2020-07-18 05:14:48,981 INFO L168 Benchmark]: TraceAbstraction took 1703.64 ms. Allocated memory was 202.4 MB in the beginning and 249.6 MB in the end (delta: 47.2 MB). Free memory was 92.4 MB in the beginning and 170.6 MB in the end (delta: -78.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-18 05:14:48,985 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 0.87 ms. Allocated memory is still 144.7 MB. Free memory was 121.2 MB in the beginning and 121.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 596.28 ms. Allocated memory was 144.7 MB in the beginning and 202.4 MB in the end (delta: 57.7 MB). Free memory was 101.2 MB in the beginning and 168.4 MB in the end (delta: -67.2 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 70.48 ms. Allocated memory is still 202.4 MB. Free memory was 168.4 MB in the beginning and 163.9 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 781.48 ms. Allocated memory is still 202.4 MB. Free memory was 163.9 MB in the beginning and 93.1 MB in the end (delta: 70.7 MB). Peak memory consumption was 70.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1703.64 ms. Allocated memory was 202.4 MB in the beginning and 249.6 MB in the end (delta: 47.2 MB). Free memory was 92.4 MB in the beginning and 170.6 MB in the end (delta: -78.2 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1052]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L989] SLL* head = malloc(sizeof(SLL)); VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L990] head->next = ((void*)0) VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L991] head->prev = ((void*)0) VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L992] head->data = 0 VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L994] SLL* x = head; VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L997] COND FALSE !(__VERIFIER_nondet_int()) VAL [__VERIFIER_nondet_int()=0, head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L1008] COND TRUE __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=1, head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L1009] x = malloc(sizeof(SLL)) VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-2:0}] [L1010] x->data = 1 VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-2:0}] [L1011] x->next = head VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-2:0}] [L1012] x->prev = ((void*)0) VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-2:0}] [L1013] head = x VAL [head={-2:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-2:0}] [L1039] x = head VAL [head={-2:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-2:0}] [L1042] EXPR x->data VAL [head={-2:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-2:0}, x->data=1] [L1042] COND FALSE !(x->data != 1) VAL [head={-2:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-2:0}, x->data=1] [L1048] EXPR x->next VAL [head={-2:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-2:0}, x->next={-1:0}] [L1048] x = x->next VAL [head={-2:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}, x->next={-1:0}] [L1049] COND TRUE \read(*x) VAL [head={-2:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L1051] EXPR x->data VAL [head={-2:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}, x->data=0] [L1051] COND TRUE x->data != 1 VAL [head={-2:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}, x->data=0] [L1052] __VERIFIER_error() VAL [head={-2:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 98 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.8s, 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=98occurred 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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 70 NumberOfCodeBlocks, 70 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 1312 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, 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...