java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/forester-heap/dll-token-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 01:41:17,776 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 01:41:17,778 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 01:41:17,791 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-08 01:41:17,791 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-08 01:41:17,792 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-08 01:41:17,794 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-08 01:41:17,796 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-08 01:41:17,799 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-08 01:41:17,800 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-08 01:41:17,804 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-08 01:41:17,805 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-08 01:41:17,806 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 01:41:17,810 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 01:41:17,811 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 01:41:17,812 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 01:41:17,812 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 01:41:17,813 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 01:41:17,815 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 01:41:17,817 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 01:41:17,818 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 01:41:17,819 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 01:41:17,820 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 01:41:17,821 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 01:41:17,823 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-08 01:41:17,823 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-08 01:41:17,824 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-08 01:41:17,824 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-08 01:41:17,825 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-08 01:41:17,826 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-08 01:41:17,826 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-08 01:41:17,827 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-08 01:41:17,828 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-08 01:41:17,828 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-08 01:41:17,829 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-08 01:41:17,830 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-08 01:41:17,830 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-08 01:41:17,831 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-08 01:41:17,831 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 01:41:17,832 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 01:41:17,832 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 01:41:17,833 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 [2019-09-08 01:41:17,858 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 01:41:17,858 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 01:41:17,862 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 01:41:17,862 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 01:41:17,862 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 01:41:17,863 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 01:41:17,863 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 01:41:17,863 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 01:41:17,863 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 01:41:17,863 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 01:41:17,864 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 01:41:17,864 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 01:41:17,864 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 01:41:17,864 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 01:41:17,864 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 01:41:17,865 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 01:41:17,865 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 01:41:17,865 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 01:41:17,865 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 01:41:17,865 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 01:41:17,866 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 01:41:17,866 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 01:41:17,866 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 01:41:17,866 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 01:41:17,867 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 01:41:17,867 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 01:41:17,867 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 01:41:17,867 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 01:41:17,867 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 01:41:17,897 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 01:41:17,916 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 01:41:17,920 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 01:41:17,923 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 01:41:17,923 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 01:41:17,924 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-token-2.i [2019-09-08 01:41:17,997 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb5e779bd/291d7ac5da92471cbd728ddc4eb6f56c/FLAG85401bf00 [2019-09-08 01:41:18,604 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 01:41:18,605 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-token-2.i [2019-09-08 01:41:18,628 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb5e779bd/291d7ac5da92471cbd728ddc4eb6f56c/FLAG85401bf00 [2019-09-08 01:41:18,850 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb5e779bd/291d7ac5da92471cbd728ddc4eb6f56c [2019-09-08 01:41:18,863 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 01:41:18,865 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 01:41:18,866 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 01:41:18,866 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 01:41:18,870 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 01:41:18,871 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:41:18" (1/1) ... [2019-09-08 01:41:18,874 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@350286e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:41:18, skipping insertion in model container [2019-09-08 01:41:18,875 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:41:18" (1/1) ... [2019-09-08 01:41:18,882 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 01:41:18,931 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 01:41:19,364 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:41:19,379 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 01:41:19,424 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:41:19,494 INFO L192 MainTranslator]: Completed translation [2019-09-08 01:41:19,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:41:19 WrapperNode [2019-09-08 01:41:19,495 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 01:41:19,496 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 01:41:19,496 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 01:41:19,496 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 01:41:19,511 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:41:19" (1/1) ... [2019-09-08 01:41:19,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:41:19" (1/1) ... [2019-09-08 01:41:19,547 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:41:19" (1/1) ... [2019-09-08 01:41:19,547 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:41:19" (1/1) ... [2019-09-08 01:41:19,565 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:41:19" (1/1) ... [2019-09-08 01:41:19,575 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:41:19" (1/1) ... [2019-09-08 01:41:19,579 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:41:19" (1/1) ... [2019-09-08 01:41:19,588 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 01:41:19,591 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 01:41:19,591 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 01:41:19,592 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 01:41:19,593 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:41:19" (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 [2019-09-08 01:41:19,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 01:41:19,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 01:41:19,655 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 01:41:19,655 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-09-08 01:41:19,656 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-09-08 01:41:19,656 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-09-08 01:41:19,656 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-09-08 01:41:19,657 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-09-08 01:41:19,657 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-09-08 01:41:19,657 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-09-08 01:41:19,657 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-09-08 01:41:19,657 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-09-08 01:41:19,658 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-09-08 01:41:19,659 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-09-08 01:41:19,659 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-09-08 01:41:19,660 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-09-08 01:41:19,662 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-09-08 01:41:19,662 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-09-08 01:41:19,662 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-09-08 01:41:19,663 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-09-08 01:41:19,663 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-09-08 01:41:19,663 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-09-08 01:41:19,664 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-09-08 01:41:19,664 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-09-08 01:41:19,664 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-09-08 01:41:19,664 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-09-08 01:41:19,664 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-09-08 01:41:19,664 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-09-08 01:41:19,664 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-09-08 01:41:19,665 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-09-08 01:41:19,665 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-09-08 01:41:19,665 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-09-08 01:41:19,665 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-09-08 01:41:19,665 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-09-08 01:41:19,665 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-09-08 01:41:19,666 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-09-08 01:41:19,666 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-09-08 01:41:19,666 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-09-08 01:41:19,666 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-09-08 01:41:19,666 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-09-08 01:41:19,666 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-09-08 01:41:19,667 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-09-08 01:41:19,667 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-09-08 01:41:19,667 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-09-08 01:41:19,667 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-09-08 01:41:19,667 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-09-08 01:41:19,667 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-09-08 01:41:19,668 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-09-08 01:41:19,668 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-09-08 01:41:19,668 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-09-08 01:41:19,668 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-09-08 01:41:19,668 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-09-08 01:41:19,668 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-09-08 01:41:19,669 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-08 01:41:19,669 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-08 01:41:19,669 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-09-08 01:41:19,669 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-08 01:41:19,669 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-09-08 01:41:19,669 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-09-08 01:41:19,669 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-09-08 01:41:19,670 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-09-08 01:41:19,670 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-09-08 01:41:19,670 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-09-08 01:41:19,670 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-09-08 01:41:19,670 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-09-08 01:41:19,670 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-09-08 01:41:19,670 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-08 01:41:19,671 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-09-08 01:41:19,672 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-09-08 01:41:19,672 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-09-08 01:41:19,672 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-09-08 01:41:19,672 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-09-08 01:41:19,673 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-09-08 01:41:19,673 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-09-08 01:41:19,674 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-09-08 01:41:19,674 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-09-08 01:41:19,674 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-09-08 01:41:19,674 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-09-08 01:41:19,674 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-09-08 01:41:19,674 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-09-08 01:41:19,675 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-09-08 01:41:19,675 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-09-08 01:41:19,675 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-09-08 01:41:19,676 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-09-08 01:41:19,676 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-09-08 01:41:19,676 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-09-08 01:41:19,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-09-08 01:41:19,677 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-09-08 01:41:19,677 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-09-08 01:41:19,677 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-09-08 01:41:19,677 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-09-08 01:41:19,678 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-09-08 01:41:19,678 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-09-08 01:41:19,678 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-09-08 01:41:19,679 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-09-08 01:41:19,679 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-09-08 01:41:19,679 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-09-08 01:41:19,679 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-09-08 01:41:19,679 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-09-08 01:41:19,679 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-09-08 01:41:19,679 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-09-08 01:41:19,679 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-09-08 01:41:19,680 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-09-08 01:41:19,680 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-09-08 01:41:19,680 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-09-08 01:41:19,680 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-09-08 01:41:19,680 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-08 01:41:19,680 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 01:41:19,680 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 01:41:19,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-08 01:41:19,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-08 01:41:19,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-08 01:41:19,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-08 01:41:19,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-08 01:41:19,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-08 01:41:19,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 01:41:19,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 01:41:20,294 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 01:41:20,295 INFO L283 CfgBuilder]: Removed 15 assume(true) statements. [2019-09-08 01:41:20,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:41:20 BoogieIcfgContainer [2019-09-08 01:41:20,296 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 01:41:20,298 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 01:41:20,298 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 01:41:20,302 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 01:41:20,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 01:41:18" (1/3) ... [2019-09-08 01:41:20,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@151194b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:41:20, skipping insertion in model container [2019-09-08 01:41:20,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:41:19" (2/3) ... [2019-09-08 01:41:20,304 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@151194b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:41:20, skipping insertion in model container [2019-09-08 01:41:20,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:41:20" (3/3) ... [2019-09-08 01:41:20,307 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-token-2.i [2019-09-08 01:41:20,318 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 01:41:20,328 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2019-09-08 01:41:20,346 INFO L252 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-09-08 01:41:20,390 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 01:41:20,391 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 01:41:20,391 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 01:41:20,391 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 01:41:20,391 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 01:41:20,392 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 01:41:20,393 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 01:41:20,397 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 01:41:20,398 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 01:41:20,425 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2019-09-08 01:41:20,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-09-08 01:41:20,439 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:41:20,440 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 01:41:20,443 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:41:20,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:41:20,450 INFO L82 PathProgramCache]: Analyzing trace with hash 68430596, now seen corresponding path program 1 times [2019-09-08 01:41:20,452 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:41:20,452 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:41:20,509 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:41:20,510 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:41:20,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:41:20,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 01:41:20,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 01:41:20,604 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 01:41:20,605 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-08 01:41:20,608 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-08 01:41:20,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-08 01:41:20,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-08 01:41:20,626 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 2 states. [2019-09-08 01:41:20,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 01:41:20,653 INFO L93 Difference]: Finished difference Result 92 states and 138 transitions. [2019-09-08 01:41:20,653 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-08 01:41:20,654 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-09-08 01:41:20,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 01:41:20,665 INFO L225 Difference]: With dead ends: 92 [2019-09-08 01:41:20,665 INFO L226 Difference]: Without dead ends: 43 [2019-09-08 01:41:20,669 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-08 01:41:20,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-09-08 01:41:20,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2019-09-08 01:41:20,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-09-08 01:41:20,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 45 transitions. [2019-09-08 01:41:20,712 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 45 transitions. Word has length 10 [2019-09-08 01:41:20,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 01:41:20,713 INFO L475 AbstractCegarLoop]: Abstraction has 43 states and 45 transitions. [2019-09-08 01:41:20,713 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-08 01:41:20,713 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 45 transitions. [2019-09-08 01:41:20,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-09-08 01:41:20,714 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:41:20,714 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 01:41:20,715 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:41:20,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:41:20,715 INFO L82 PathProgramCache]: Analyzing trace with hash 67663975, now seen corresponding path program 1 times [2019-09-08 01:41:20,715 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:41:20,716 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:41:20,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:41:20,718 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:41:20,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:41:20,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 01:41:20,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 01:41:20,842 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 01:41:20,842 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-08 01:41:20,845 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-08 01:41:20,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-08 01:41:20,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-08 01:41:20,846 INFO L87 Difference]: Start difference. First operand 43 states and 45 transitions. Second operand 4 states. [2019-09-08 01:41:20,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 01:41:20,956 INFO L93 Difference]: Finished difference Result 43 states and 45 transitions. [2019-09-08 01:41:20,956 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 01:41:20,957 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-09-08 01:41:20,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 01:41:20,958 INFO L225 Difference]: With dead ends: 43 [2019-09-08 01:41:20,958 INFO L226 Difference]: Without dead ends: 41 [2019-09-08 01:41:20,959 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-08 01:41:20,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-09-08 01:41:20,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2019-09-08 01:41:20,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-09-08 01:41:20,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 43 transitions. [2019-09-08 01:41:20,966 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 43 transitions. Word has length 10 [2019-09-08 01:41:20,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 01:41:20,967 INFO L475 AbstractCegarLoop]: Abstraction has 41 states and 43 transitions. [2019-09-08 01:41:20,967 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-08 01:41:20,967 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions. [2019-09-08 01:41:20,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-09-08 01:41:20,968 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:41:20,968 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 01:41:20,968 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:41:20,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:41:20,969 INFO L82 PathProgramCache]: Analyzing trace with hash 2097539711, now seen corresponding path program 1 times [2019-09-08 01:41:20,969 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:41:20,969 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:41:20,971 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:41:20,971 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:41:20,971 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:41:20,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 01:41:21,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 01:41:21,070 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 01:41:21,070 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-08 01:41:21,071 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-08 01:41:21,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-08 01:41:21,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-08 01:41:21,072 INFO L87 Difference]: Start difference. First operand 41 states and 43 transitions. Second operand 4 states. [2019-09-08 01:41:21,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 01:41:21,160 INFO L93 Difference]: Finished difference Result 67 states and 70 transitions. [2019-09-08 01:41:21,162 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-08 01:41:21,162 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-09-08 01:41:21,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 01:41:21,163 INFO L225 Difference]: With dead ends: 67 [2019-09-08 01:41:21,164 INFO L226 Difference]: Without dead ends: 65 [2019-09-08 01:41:21,164 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-08 01:41:21,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2019-09-08 01:41:21,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 39. [2019-09-08 01:41:21,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-09-08 01:41:21,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2019-09-08 01:41:21,171 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 11 [2019-09-08 01:41:21,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 01:41:21,172 INFO L475 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2019-09-08 01:41:21,172 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-08 01:41:21,172 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2019-09-08 01:41:21,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-09-08 01:41:21,173 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:41:21,173 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 01:41:21,174 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:41:21,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:41:21,174 INFO L82 PathProgramCache]: Analyzing trace with hash -409997773, now seen corresponding path program 1 times [2019-09-08 01:41:21,174 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:41:21,174 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:41:21,176 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:41:21,176 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:41:21,176 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:41:21,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 01:41:21,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 01:41:21,244 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 01:41:21,244 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 01:41:21,245 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 01:41:21,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 01:41:21,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 01:41:21,245 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand 5 states. [2019-09-08 01:41:21,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 01:41:21,366 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2019-09-08 01:41:21,369 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 01:41:21,369 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-09-08 01:41:21,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 01:41:21,370 INFO L225 Difference]: With dead ends: 39 [2019-09-08 01:41:21,371 INFO L226 Difference]: Without dead ends: 37 [2019-09-08 01:41:21,372 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-08 01:41:21,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-09-08 01:41:21,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2019-09-08 01:41:21,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-09-08 01:41:21,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2019-09-08 01:41:21,380 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 16 [2019-09-08 01:41:21,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 01:41:21,385 INFO L475 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2019-09-08 01:41:21,385 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 01:41:21,385 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2019-09-08 01:41:21,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-09-08 01:41:21,386 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:41:21,386 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 01:41:21,387 INFO L418 AbstractCegarLoop]: === Iteration 5 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:41:21,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:41:21,388 INFO L82 PathProgramCache]: Analyzing trace with hash -409960037, now seen corresponding path program 1 times [2019-09-08 01:41:21,388 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:41:21,388 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:41:21,390 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:41:21,391 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:41:21,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:41:21,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 01:41:21,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 01:41:21,590 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 01:41:21,590 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 01:41:21,591 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 01:41:21,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 01:41:21,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 01:41:21,591 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand 5 states. [2019-09-08 01:41:21,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 01:41:21,736 INFO L93 Difference]: Finished difference Result 72 states and 77 transitions. [2019-09-08 01:41:21,737 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 01:41:21,737 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-09-08 01:41:21,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 01:41:21,738 INFO L225 Difference]: With dead ends: 72 [2019-09-08 01:41:21,738 INFO L226 Difference]: Without dead ends: 48 [2019-09-08 01:41:21,739 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-09-08 01:41:21,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2019-09-08 01:41:21,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 44. [2019-09-08 01:41:21,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2019-09-08 01:41:21,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 47 transitions. [2019-09-08 01:41:21,746 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 47 transitions. Word has length 16 [2019-09-08 01:41:21,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 01:41:21,746 INFO L475 AbstractCegarLoop]: Abstraction has 44 states and 47 transitions. [2019-09-08 01:41:21,746 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 01:41:21,746 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 47 transitions. [2019-09-08 01:41:21,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-09-08 01:41:21,747 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:41:21,747 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 01:41:21,748 INFO L418 AbstractCegarLoop]: === Iteration 6 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:41:21,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:41:21,748 INFO L82 PathProgramCache]: Analyzing trace with hash -1407314597, now seen corresponding path program 1 times [2019-09-08 01:41:21,749 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:41:21,749 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:41:21,750 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:41:21,750 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:41:21,750 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:41:21,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:41:21,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:41:21,864 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-08 01:41:21,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.09 01:41:21 BoogieIcfgContainer [2019-09-08 01:41:21,911 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-08 01:41:21,915 INFO L168 Benchmark]: Toolchain (without parser) took 3048.35 ms. Allocated memory was 134.2 MB in the beginning and 229.1 MB in the end (delta: 94.9 MB). Free memory was 89.1 MB in the beginning and 138.1 MB in the end (delta: -49.1 MB). Peak memory consumption was 45.8 MB. Max. memory is 7.1 GB. [2019-09-08 01:41:21,916 INFO L168 Benchmark]: CDTParser took 0.51 ms. Allocated memory is still 134.2 MB. Free memory was 108.6 MB in the beginning and 108.4 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-09-08 01:41:21,918 INFO L168 Benchmark]: CACSL2BoogieTranslator took 629.32 ms. Allocated memory was 134.2 MB in the beginning and 201.9 MB in the end (delta: 67.6 MB). Free memory was 88.9 MB in the beginning and 167.0 MB in the end (delta: -78.2 MB). Peak memory consumption was 27.7 MB. Max. memory is 7.1 GB. [2019-09-08 01:41:21,919 INFO L168 Benchmark]: Boogie Preprocessor took 92.71 ms. Allocated memory is still 201.9 MB. Free memory was 167.0 MB in the beginning and 163.6 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. [2019-09-08 01:41:21,921 INFO L168 Benchmark]: RCFGBuilder took 705.43 ms. Allocated memory is still 201.9 MB. Free memory was 163.6 MB in the beginning and 118.4 MB in the end (delta: 45.2 MB). Peak memory consumption was 45.2 MB. Max. memory is 7.1 GB. [2019-09-08 01:41:21,922 INFO L168 Benchmark]: TraceAbstraction took 1613.52 ms. Allocated memory was 201.9 MB in the beginning and 229.1 MB in the end (delta: 27.3 MB). Free memory was 117.8 MB in the beginning and 138.1 MB in the end (delta: -20.3 MB). Peak memory consumption was 6.9 MB. Max. memory is 7.1 GB. [2019-09-08 01:41:21,932 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51 ms. Allocated memory is still 134.2 MB. Free memory was 108.6 MB in the beginning and 108.4 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 629.32 ms. Allocated memory was 134.2 MB in the beginning and 201.9 MB in the end (delta: 67.6 MB). Free memory was 88.9 MB in the beginning and 167.0 MB in the end (delta: -78.2 MB). Peak memory consumption was 27.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 92.71 ms. Allocated memory is still 201.9 MB. Free memory was 167.0 MB in the beginning and 163.6 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 705.43 ms. Allocated memory is still 201.9 MB. Free memory was 163.6 MB in the beginning and 118.4 MB in the end (delta: 45.2 MB). Peak memory consumption was 45.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1613.52 ms. Allocated memory was 201.9 MB in the beginning and 229.1 MB in the end (delta: 27.3 MB). Free memory was 117.8 MB in the beginning and 138.1 MB in the end (delta: -20.3 MB). Peak memory consumption was 6.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1026]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L993] SLL* head = malloc(sizeof(SLL)); [L994] head->next = ((void*)0) [L995] head->prev = ((void*)0) [L996] head->data = 0 [L998] SLL* x = head; VAL [head={1:0}, malloc(sizeof(SLL))={1:0}, x={1:0}] [L1001] COND FALSE !(__VERIFIER_nondet_int()) [L1010] x->data = 1 [L1011] x->next = malloc(sizeof(SLL)) [L1012] EXPR x->next [L1012] x->next->prev = x [L1013] EXPR x->next [L1013] x->next->data = 2 [L1015] x = head VAL [head={1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={1:0}, x={1:0}] [L1017] COND FALSE !(!(((void*)0) != x)) VAL [head={1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={1:0}, x={1:0}] [L1019] EXPR x->data VAL [head={1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={1:0}, x={1:0}, x->data=1] [L1019] COND FALSE !(1 != x->data) [L1024] EXPR x->data VAL [head={1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={1:0}, x={1:0}, x->data=1] [L1024] COND FALSE !(!(1 == x->data)) [L1025] EXPR x->next [L1025] x = x->next [L1026] EXPR x->data VAL [head={1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={1:0}, x={-1:0}, x->data=2] [L1026] COND TRUE !(2 != x->data) [L1026] __VERIFIER_error() VAL [head={1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={1:0}, x={-1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 49 locations, 6 error locations. UNSAFE Result, 1.5s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 185 SDtfs, 91 SDslu, 232 SDs, 0 SdLazy, 139 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 30 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 2221 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...