/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/forester-heap/dll-simple-white-blue-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 13:39:28,395 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 13:39:28,399 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 13:39:28,451 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-23 13:39:28,451 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-23 13:39:28,455 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-23 13:39:28,459 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-23 13:39:28,466 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-23 13:39:28,469 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-23 13:39:28,475 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-23 13:39:28,476 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-23 13:39:28,478 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-23 13:39:28,479 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 13:39:28,481 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 13:39:28,483 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 13:39:28,485 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 13:39:28,489 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 13:39:28,501 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 13:39:28,515 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 13:39:28,519 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 13:39:28,534 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 13:39:28,536 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 13:39:28,537 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 13:39:28,538 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 13:39:28,541 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-23 13:39:28,543 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-23 13:39:28,543 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-23 13:39:28,544 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-23 13:39:28,545 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-23 13:39:28,546 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-23 13:39:28,548 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-23 13:39:28,549 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-23 13:39:28,550 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-23 13:39:28,556 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-23 13:39:28,557 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-23 13:39:28,557 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-23 13:39:28,558 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-23 13:39:28,558 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-23 13:39:28,558 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 13:39:28,559 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 13:39:28,559 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 13:39:28,561 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2021-02-23 13:39:28,612 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 13:39:28,613 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 13:39:28,617 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-23 13:39:28,617 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-23 13:39:28,617 INFO L138 SettingsManager]: * Use SBE=true [2021-02-23 13:39:28,618 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 13:39:28,618 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 13:39:28,618 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 13:39:28,618 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 13:39:28,619 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 13:39:28,620 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 13:39:28,620 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 13:39:28,620 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 13:39:28,620 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 13:39:28,620 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 13:39:28,621 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 13:39:28,621 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 13:39:28,621 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 13:39:28,621 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-23 13:39:28,621 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 13:39:28,622 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 13:39:28,622 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 13:39:28,622 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-23 13:39:28,622 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-23 13:39:28,623 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-23 13:39:28,623 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-23 13:39:28,623 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 13:39:28,623 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-23 13:39:28,623 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 13:39:28,982 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 13:39:29,007 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 13:39:29,010 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 13:39:29,011 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 13:39:29,012 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 13:39:29,013 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-simple-white-blue-1.i [2021-02-23 13:39:29,083 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0abd47cd4/018fa4e607674ca899de6d29b10ff665/FLAGc7e929bcb [2021-02-23 13:39:29,865 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 13:39:29,865 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-simple-white-blue-1.i [2021-02-23 13:39:29,886 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0abd47cd4/018fa4e607674ca899de6d29b10ff665/FLAGc7e929bcb [2021-02-23 13:39:30,105 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0abd47cd4/018fa4e607674ca899de6d29b10ff665 [2021-02-23 13:39:30,108 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 13:39:30,122 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 13:39:30,123 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 13:39:30,124 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 13:39:30,128 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 13:39:30,128 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 01:39:30" (1/1) ... [2021-02-23 13:39:30,130 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69a1379b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:39:30, skipping insertion in model container [2021-02-23 13:39:30,130 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 01:39:30" (1/1) ... [2021-02-23 13:39:30,138 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 13:39:30,178 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 13:39:30,593 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-simple-white-blue-1.i[22793,22806] [2021-02-23 13:39:30,600 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 13:39:30,611 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 13:39:30,655 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-simple-white-blue-1.i[22793,22806] [2021-02-23 13:39:30,659 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 13:39:30,809 INFO L208 MainTranslator]: Completed translation [2021-02-23 13:39:30,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:39:30 WrapperNode [2021-02-23 13:39:30,810 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 13:39:30,811 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 13:39:30,812 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 13:39:30,812 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 13:39:30,827 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:39:30" (1/1) ... [2021-02-23 13:39:30,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:39:30" (1/1) ... [2021-02-23 13:39:30,844 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:39:30" (1/1) ... [2021-02-23 13:39:30,844 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:39:30" (1/1) ... [2021-02-23 13:39:30,865 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:39:30" (1/1) ... [2021-02-23 13:39:30,872 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:39:30" (1/1) ... [2021-02-23 13:39:30,878 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:39:30" (1/1) ... [2021-02-23 13:39:30,884 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 13:39:30,885 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 13:39:30,885 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 13:39:30,886 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 13:39:30,887 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:39:30" (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 [2021-02-23 13:39:30,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 13:39:30,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 13:39:30,998 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 13:39:30,999 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 13:39:30,999 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-02-23 13:39:30,999 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-02-23 13:39:30,999 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-02-23 13:39:30,999 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-02-23 13:39:30,999 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-02-23 13:39:31,000 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-02-23 13:39:31,000 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-02-23 13:39:31,000 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-02-23 13:39:31,000 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-02-23 13:39:31,000 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-02-23 13:39:31,000 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-02-23 13:39:31,001 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-02-23 13:39:31,001 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-02-23 13:39:31,001 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-02-23 13:39:31,001 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-02-23 13:39:31,001 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-02-23 13:39:31,001 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-02-23 13:39:31,002 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-02-23 13:39:31,002 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-02-23 13:39:31,002 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-02-23 13:39:31,002 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-02-23 13:39:31,002 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-02-23 13:39:31,002 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-02-23 13:39:31,002 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-02-23 13:39:31,003 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-02-23 13:39:31,003 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-02-23 13:39:31,003 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-02-23 13:39:31,003 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-02-23 13:39:31,003 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-02-23 13:39:31,003 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-02-23 13:39:31,004 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-02-23 13:39:31,004 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-02-23 13:39:31,004 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-02-23 13:39:31,004 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-02-23 13:39:31,004 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-02-23 13:39:31,004 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-02-23 13:39:31,004 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-02-23 13:39:31,005 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-02-23 13:39:31,005 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-02-23 13:39:31,005 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-02-23 13:39:31,005 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-02-23 13:39:31,005 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-02-23 13:39:31,005 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-02-23 13:39:31,006 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-02-23 13:39:31,006 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-02-23 13:39:31,006 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-02-23 13:39:31,006 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-02-23 13:39:31,006 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-02-23 13:39:31,006 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-02-23 13:39:31,007 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-02-23 13:39:31,007 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-23 13:39:31,007 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-02-23 13:39:31,007 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-02-23 13:39:31,007 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-23 13:39:31,007 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2021-02-23 13:39:31,007 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-02-23 13:39:31,008 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-02-23 13:39:31,008 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-02-23 13:39:31,008 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-02-23 13:39:31,008 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 13:39:31,008 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-02-23 13:39:31,008 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-02-23 13:39:31,009 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-02-23 13:39:31,009 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-02-23 13:39:31,009 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-02-23 13:39:31,009 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-02-23 13:39:31,009 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-02-23 13:39:31,009 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-02-23 13:39:31,010 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-02-23 13:39:31,010 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-02-23 13:39:31,010 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-02-23 13:39:31,010 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-02-23 13:39:31,010 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-02-23 13:39:31,010 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-02-23 13:39:31,011 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-02-23 13:39:31,011 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-02-23 13:39:31,011 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-02-23 13:39:31,011 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-02-23 13:39:31,011 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-02-23 13:39:31,011 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-02-23 13:39:31,012 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-02-23 13:39:31,012 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-02-23 13:39:31,012 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-02-23 13:39:31,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-02-23 13:39:31,012 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-02-23 13:39:31,012 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-02-23 13:39:31,012 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-02-23 13:39:31,013 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-02-23 13:39:31,013 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-02-23 13:39:31,013 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-02-23 13:39:31,013 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-02-23 13:39:31,013 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-02-23 13:39:31,013 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-02-23 13:39:31,014 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-02-23 13:39:31,014 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-02-23 13:39:31,014 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-02-23 13:39:31,014 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-02-23 13:39:31,014 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-02-23 13:39:31,014 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-02-23 13:39:31,014 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-02-23 13:39:31,015 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-02-23 13:39:31,015 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-02-23 13:39:31,015 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-02-23 13:39:31,015 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 13:39:31,015 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 13:39:31,015 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-02-23 13:39:31,016 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-02-23 13:39:31,016 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 13:39:31,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 13:39:31,016 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 13:39:31,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-23 13:39:31,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-23 13:39:31,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 13:39:31,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-23 13:39:31,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 13:39:31,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 13:39:31,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 13:39:31,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 13:39:31,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 13:39:31,916 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 13:39:31,916 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-02-23 13:39:31,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 01:39:31 BoogieIcfgContainer [2021-02-23 13:39:31,918 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 13:39:31,921 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 13:39:31,922 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 13:39:31,926 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 13:39:31,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 01:39:30" (1/3) ... [2021-02-23 13:39:31,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38793694 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 01:39:31, skipping insertion in model container [2021-02-23 13:39:31,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:39:30" (2/3) ... [2021-02-23 13:39:31,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38793694 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 01:39:31, skipping insertion in model container [2021-02-23 13:39:31,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 01:39:31" (3/3) ... [2021-02-23 13:39:31,931 INFO L111 eAbstractionObserver]: Analyzing ICFG dll-simple-white-blue-1.i [2021-02-23 13:39:31,940 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-23 13:39:31,947 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 13:39:31,971 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 13:39:32,011 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 13:39:32,011 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 13:39:32,011 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-23 13:39:32,017 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 13:39:32,018 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 13:39:32,018 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 13:39:32,018 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 13:39:32,018 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 13:39:32,039 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2021-02-23 13:39:32,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-02-23 13:39:32,045 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 13:39:32,046 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 13:39:32,047 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 13:39:32,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 13:39:32,056 INFO L82 PathProgramCache]: Analyzing trace with hash -241894490, now seen corresponding path program 1 times [2021-02-23 13:39:32,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 13:39:32,067 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798674950] [2021-02-23 13:39:32,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 13:39:32,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:39:32,250 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:32,251 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:39:32,252 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:32,253 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:39:32,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 13:39:32,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:39:32,299 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:39:32,300 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:39:32,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 13:39:32,305 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798674950] [2021-02-23 13:39:32,306 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 13:39:32,306 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-23 13:39:32,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440279410] [2021-02-23 13:39:32,312 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-23 13:39:32,313 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 13:39:32,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-23 13:39:32,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 13:39:32,331 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 3 states. [2021-02-23 13:39:32,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 13:39:32,450 INFO L93 Difference]: Finished difference Result 55 states and 84 transitions. [2021-02-23 13:39:32,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-23 13:39:32,452 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2021-02-23 13:39:32,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 13:39:32,462 INFO L225 Difference]: With dead ends: 55 [2021-02-23 13:39:32,463 INFO L226 Difference]: Without dead ends: 24 [2021-02-23 13:39:32,466 INFO L677 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 [2021-02-23 13:39:32,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-02-23 13:39:32,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2021-02-23 13:39:32,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2021-02-23 13:39:32,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 30 transitions. [2021-02-23 13:39:32,507 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 30 transitions. Word has length 15 [2021-02-23 13:39:32,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 13:39:32,507 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 30 transitions. [2021-02-23 13:39:32,507 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-23 13:39:32,507 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 30 transitions. [2021-02-23 13:39:32,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-02-23 13:39:32,508 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 13:39:32,508 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 13:39:32,509 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 13:39:32,509 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 13:39:32,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 13:39:32,510 INFO L82 PathProgramCache]: Analyzing trace with hash 1876793685, now seen corresponding path program 1 times [2021-02-23 13:39:32,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 13:39:32,510 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939577738] [2021-02-23 13:39:32,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 13:39:32,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 13:39:32,561 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 13:39:32,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 13:39:32,597 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 13:39:32,628 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-02-23 13:39:32,628 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-23 13:39:32,629 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 13:39:32,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 01:39:32 BoogieIcfgContainer [2021-02-23 13:39:32,672 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 13:39:32,675 INFO L168 Benchmark]: Toolchain (without parser) took 2564.14 ms. Allocated memory was 151.0 MB in the beginning and 188.7 MB in the end (delta: 37.7 MB). Free memory was 131.2 MB in the beginning and 122.2 MB in the end (delta: 9.0 MB). Peak memory consumption was 46.9 MB. Max. memory is 8.0 GB. [2021-02-23 13:39:32,676 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 151.0 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 131.4 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 13:39:32,677 INFO L168 Benchmark]: CACSL2BoogieTranslator took 687.26 ms. Allocated memory is still 151.0 MB. Free memory was 130.1 MB in the beginning and 124.9 MB in the end (delta: 5.2 MB). Peak memory consumption was 17.1 MB. Max. memory is 8.0 GB. [2021-02-23 13:39:32,678 INFO L168 Benchmark]: Boogie Preprocessor took 73.15 ms. Allocated memory is still 151.0 MB. Free memory was 124.9 MB in the beginning and 122.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-23 13:39:32,679 INFO L168 Benchmark]: RCFGBuilder took 1032.98 ms. Allocated memory was 151.0 MB in the beginning and 188.7 MB in the end (delta: 37.7 MB). Free memory was 122.1 MB in the beginning and 162.6 MB in the end (delta: -40.4 MB). Peak memory consumption was 41.3 MB. Max. memory is 8.0 GB. [2021-02-23 13:39:32,680 INFO L168 Benchmark]: TraceAbstraction took 751.19 ms. Allocated memory is still 188.7 MB. Free memory was 162.6 MB in the beginning and 122.2 MB in the end (delta: 40.4 MB). Peak memory consumption was 40.9 MB. Max. memory is 8.0 GB. [2021-02-23 13:39:32,684 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 151.0 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 131.4 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 687.26 ms. Allocated memory is still 151.0 MB. Free memory was 130.1 MB in the beginning and 124.9 MB in the end (delta: 5.2 MB). Peak memory consumption was 17.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 73.15 ms. Allocated memory is still 151.0 MB. Free memory was 124.9 MB in the beginning and 122.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1032.98 ms. Allocated memory was 151.0 MB in the beginning and 188.7 MB in the end (delta: 37.7 MB). Free memory was 122.1 MB in the beginning and 162.6 MB in the end (delta: -40.4 MB). Peak memory consumption was 41.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 751.19 ms. Allocated memory is still 188.7 MB. Free memory was 162.6 MB in the beginning and 122.2 MB in the end (delta: 40.4 MB). Peak memory consumption was 40.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1063]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1000] SLL* head = malloc(sizeof(SLL)); [L1001] head->next = ((void*)0) [L1002] head->prev = ((void*)0) [L1003] head->data = 0 [L1005] SLL* x = head; VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L1008] COND FALSE !(__VERIFIER_nondet_int()) [L1019] COND TRUE __VERIFIER_nondet_int() [L1020] x = malloc(sizeof(SLL)) [L1021] x->data = 1 [L1022] x->next = head [L1023] x->prev = ((void*)0) [L1024] head = x VAL [head={-2:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-2:0}] [L1050] x = head VAL [head={-2:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-2:0}] [L1053] EXPR x->data VAL [head={-2:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-2:0}, x->data=1] [L1053] COND FALSE !(x->data != 1) [L1059] EXPR x->next [L1059] x = x->next [L1060] COND TRUE \read(*x) [L1062] EXPR x->data VAL [head={-2:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}, x->data=0] [L1062] COND TRUE x->data != 1 [L1063] reach_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 4 procedures, 35 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 36 SDtfs, 0 SDslu, 4 SDs, 0 SdLazy, 34 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s 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=32occurred 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, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 532 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...