/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/forester-heap/dll-optional-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-18 00:23:24,588 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-18 00:23:24,591 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-18 00:23:24,609 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-18 00:23:24,610 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-18 00:23:24,612 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-18 00:23:24,613 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-18 00:23:24,626 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-18 00:23:24,628 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-18 00:23:24,629 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-18 00:23:24,632 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-18 00:23:24,634 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-18 00:23:24,635 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-18 00:23:24,638 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-18 00:23:24,641 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-18 00:23:24,642 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-18 00:23:24,644 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-18 00:23:24,646 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-18 00:23:24,647 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-18 00:23:24,653 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-18 00:23:24,657 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-18 00:23:24,658 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-18 00:23:24,660 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-18 00:23:24,660 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-18 00:23:24,664 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-18 00:23:24,665 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-18 00:23:24,665 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-18 00:23:24,668 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-18 00:23:24,668 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-18 00:23:24,670 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-18 00:23:24,670 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-18 00:23:24,671 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-18 00:23:24,672 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-18 00:23:24,673 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-18 00:23:24,676 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-18 00:23:24,676 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-18 00:23:24,678 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-18 00:23:24,679 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-18 00:23:24,679 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-18 00:23:24,680 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-18 00:23:24,681 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-18 00:23:24,682 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-18 00:23:24,696 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-18 00:23:24,696 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-18 00:23:24,698 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-18 00:23:24,698 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-18 00:23:24,698 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-18 00:23:24,699 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-18 00:23:24,699 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-18 00:23:24,699 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-18 00:23:24,699 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-18 00:23:24,699 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-18 00:23:24,700 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-18 00:23:24,701 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-18 00:23:24,701 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-18 00:23:24,701 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-18 00:23:24,702 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-18 00:23:24,702 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-18 00:23:24,702 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-18 00:23:24,702 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-18 00:23:24,702 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 00:23:24,703 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-18 00:23:24,703 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-18 00:23:24,703 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-18 00:23:24,703 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-18 00:23:24,964 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-18 00:23:24,982 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-18 00:23:24,987 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-18 00:23:24,989 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-18 00:23:24,989 INFO L275 PluginConnector]: CDTParser initialized [2020-07-18 00:23:24,990 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-optional-2.i [2020-07-18 00:23:25,051 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f17e9d214/b9f6cedaef714e73bb83aeabc4b9d68b/FLAG117df0bf8 [2020-07-18 00:23:25,575 INFO L306 CDTParser]: Found 1 translation units. [2020-07-18 00:23:25,576 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-optional-2.i [2020-07-18 00:23:25,590 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f17e9d214/b9f6cedaef714e73bb83aeabc4b9d68b/FLAG117df0bf8 [2020-07-18 00:23:25,913 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f17e9d214/b9f6cedaef714e73bb83aeabc4b9d68b [2020-07-18 00:23:25,921 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-18 00:23:25,924 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-18 00:23:25,925 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-18 00:23:25,925 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-18 00:23:25,928 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-18 00:23:25,929 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:23:25" (1/1) ... [2020-07-18 00:23:25,931 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5282c64b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:23:25, skipping insertion in model container [2020-07-18 00:23:25,932 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:23:25" (1/1) ... [2020-07-18 00:23:25,938 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-18 00:23:25,993 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-18 00:23:26,471 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 00:23:26,482 INFO L203 MainTranslator]: Completed pre-run [2020-07-18 00:23:26,527 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 00:23:26,594 INFO L208 MainTranslator]: Completed translation [2020-07-18 00:23:26,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:23:26 WrapperNode [2020-07-18 00:23:26,595 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-18 00:23:26,596 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-18 00:23:26,596 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-18 00:23:26,596 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-18 00:23:26,610 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:23:26" (1/1) ... [2020-07-18 00:23:26,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:23:26" (1/1) ... [2020-07-18 00:23:26,631 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:23:26" (1/1) ... [2020-07-18 00:23:26,632 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:23:26" (1/1) ... [2020-07-18 00:23:26,660 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:23:26" (1/1) ... [2020-07-18 00:23:26,667 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:23:26" (1/1) ... [2020-07-18 00:23:26,671 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:23:26" (1/1) ... [2020-07-18 00:23:26,677 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-18 00:23:26,678 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-18 00:23:26,678 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-18 00:23:26,678 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-18 00:23:26,679 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:23:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 00:23:26,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-18 00:23:26,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-18 00:23:26,736 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-18 00:23:26,737 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-07-18 00:23:26,737 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-07-18 00:23:26,737 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-07-18 00:23:26,737 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-07-18 00:23:26,737 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-07-18 00:23:26,737 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-07-18 00:23:26,737 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-07-18 00:23:26,737 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-07-18 00:23:26,738 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-07-18 00:23:26,738 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-07-18 00:23:26,738 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-07-18 00:23:26,738 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-07-18 00:23:26,738 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-07-18 00:23:26,739 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-07-18 00:23:26,739 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-07-18 00:23:26,739 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-07-18 00:23:26,739 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-07-18 00:23:26,739 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-07-18 00:23:26,739 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-07-18 00:23:26,740 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-07-18 00:23:26,749 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-07-18 00:23:26,750 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-07-18 00:23:26,750 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-07-18 00:23:26,750 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-07-18 00:23:26,750 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-07-18 00:23:26,750 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-07-18 00:23:26,750 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-07-18 00:23:26,750 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-07-18 00:23:26,750 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-07-18 00:23:26,751 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-07-18 00:23:26,751 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-07-18 00:23:26,751 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-07-18 00:23:26,751 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-07-18 00:23:26,751 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-07-18 00:23:26,751 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-07-18 00:23:26,751 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-07-18 00:23:26,751 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-07-18 00:23:26,751 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-07-18 00:23:26,751 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-07-18 00:23:26,752 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-07-18 00:23:26,752 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-07-18 00:23:26,752 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-07-18 00:23:26,752 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-07-18 00:23:26,752 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-07-18 00:23:26,752 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-07-18 00:23:26,752 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-07-18 00:23:26,752 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-07-18 00:23:26,752 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-07-18 00:23:26,752 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-07-18 00:23:26,753 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-07-18 00:23:26,753 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-18 00:23:26,753 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-07-18 00:23:26,753 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-07-18 00:23:26,753 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-18 00:23:26,753 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-07-18 00:23:26,753 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-07-18 00:23:26,753 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-07-18 00:23:26,753 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-07-18 00:23:26,753 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-07-18 00:23:26,754 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-18 00:23:26,754 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-07-18 00:23:26,754 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-07-18 00:23:26,754 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-07-18 00:23:26,754 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-18 00:23:26,754 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-07-18 00:23:26,754 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-07-18 00:23:26,755 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-07-18 00:23:26,755 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-07-18 00:23:26,755 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-07-18 00:23:26,755 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-07-18 00:23:26,755 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-07-18 00:23:26,756 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-07-18 00:23:26,756 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-07-18 00:23:26,757 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-07-18 00:23:26,757 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-07-18 00:23:26,757 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-07-18 00:23:26,757 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-07-18 00:23:26,758 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-07-18 00:23:26,759 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-07-18 00:23:26,759 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-07-18 00:23:26,759 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-07-18 00:23:26,759 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-07-18 00:23:26,759 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-07-18 00:23:26,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-07-18 00:23:26,760 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-07-18 00:23:26,761 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-07-18 00:23:26,761 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-07-18 00:23:26,761 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-07-18 00:23:26,761 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-07-18 00:23:26,761 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-07-18 00:23:26,761 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-07-18 00:23:26,761 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-07-18 00:23:26,762 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-07-18 00:23:26,762 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-07-18 00:23:26,762 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-07-18 00:23:26,763 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-07-18 00:23:26,763 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-07-18 00:23:26,763 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-07-18 00:23:26,763 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-07-18 00:23:26,763 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-07-18 00:23:26,763 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-07-18 00:23:26,763 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-07-18 00:23:26,764 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-07-18 00:23:26,764 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-18 00:23:26,764 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-18 00:23:26,764 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-18 00:23:26,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-18 00:23:26,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-18 00:23:26,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-18 00:23:26,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-18 00:23:26,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-18 00:23:26,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-18 00:23:26,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-18 00:23:26,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-18 00:23:27,551 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-18 00:23:27,551 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-18 00:23:27,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:23:27 BoogieIcfgContainer [2020-07-18 00:23:27,556 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-18 00:23:27,558 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-18 00:23:27,558 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-18 00:23:27,561 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-18 00:23:27,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.07 12:23:25" (1/3) ... [2020-07-18 00:23:27,562 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29943887 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:23:27, skipping insertion in model container [2020-07-18 00:23:27,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:23:26" (2/3) ... [2020-07-18 00:23:27,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29943887 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:23:27, skipping insertion in model container [2020-07-18 00:23:27,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:23:27" (3/3) ... [2020-07-18 00:23:27,565 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-optional-2.i [2020-07-18 00:23:27,590 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-18 00:23:27,598 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-18 00:23:27,612 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-18 00:23:27,634 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-18 00:23:27,634 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-18 00:23:27,634 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-18 00:23:27,635 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-18 00:23:27,635 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-18 00:23:27,635 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-18 00:23:27,635 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-18 00:23:27,635 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-18 00:23:27,653 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states. [2020-07-18 00:23:27,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-07-18 00:23:27,666 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:23:27,667 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 00:23:27,668 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:23:27,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:23:27,675 INFO L82 PathProgramCache]: Analyzing trace with hash 16375073, now seen corresponding path program 1 times [2020-07-18 00:23:27,683 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:23:27,684 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1262423589] [2020-07-18 00:23:27,684 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:23:27,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:23:27,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:23:27,934 INFO L280 TraceCheckUtils]: 0: Hoare triple {110#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {103#true} is VALID [2020-07-18 00:23:27,935 INFO L280 TraceCheckUtils]: 1: Hoare triple {103#true} #valid := #valid[0 := 0]; {103#true} is VALID [2020-07-18 00:23:27,936 INFO L280 TraceCheckUtils]: 2: Hoare triple {103#true} assume 0 < #StackHeapBarrier; {103#true} is VALID [2020-07-18 00:23:27,936 INFO L280 TraceCheckUtils]: 3: Hoare triple {103#true} assume true; {103#true} is VALID [2020-07-18 00:23:27,938 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {103#true} {103#true} #173#return; {103#true} is VALID [2020-07-18 00:23:27,941 INFO L263 TraceCheckUtils]: 0: Hoare triple {103#true} call ULTIMATE.init(); {110#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-18 00:23:27,942 INFO L280 TraceCheckUtils]: 1: Hoare triple {110#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {103#true} is VALID [2020-07-18 00:23:27,942 INFO L280 TraceCheckUtils]: 2: Hoare triple {103#true} #valid := #valid[0 := 0]; {103#true} is VALID [2020-07-18 00:23:27,943 INFO L280 TraceCheckUtils]: 3: Hoare triple {103#true} assume 0 < #StackHeapBarrier; {103#true} is VALID [2020-07-18 00:23:27,943 INFO L280 TraceCheckUtils]: 4: Hoare triple {103#true} assume true; {103#true} is VALID [2020-07-18 00:23:27,943 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {103#true} {103#true} #173#return; {103#true} is VALID [2020-07-18 00:23:27,944 INFO L263 TraceCheckUtils]: 6: Hoare triple {103#true} call #t~ret20 := main(); {103#true} is VALID [2020-07-18 00:23:27,944 INFO L280 TraceCheckUtils]: 7: Hoare triple {103#true} SUMMARY for call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(16); srcloc: mainENTRY {103#true} is VALID [2020-07-18 00:23:27,945 INFO L280 TraceCheckUtils]: 8: Hoare triple {103#true} ~head~0.base, ~head~0.offset := #t~malloc0.base, #t~malloc0.offset; {103#true} is VALID [2020-07-18 00:23:27,945 INFO L280 TraceCheckUtils]: 9: Hoare triple {103#true} SUMMARY for call write~$Pointer$(0, 0, ~head~0.base, ~head~0.offset, 4); srcloc: L987 {103#true} is VALID [2020-07-18 00:23:27,945 INFO L280 TraceCheckUtils]: 10: Hoare triple {103#true} SUMMARY for call write~$Pointer$(0, 0, ~head~0.base, 4 + ~head~0.offset, 4); srcloc: L987-1 {103#true} is VALID [2020-07-18 00:23:27,945 INFO L280 TraceCheckUtils]: 11: Hoare triple {103#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {103#true} is VALID [2020-07-18 00:23:27,946 INFO L280 TraceCheckUtils]: 12: Hoare triple {103#true} assume !(0 != #t~nondet1); {103#true} is VALID [2020-07-18 00:23:27,946 INFO L280 TraceCheckUtils]: 13: Hoare triple {103#true} havoc #t~nondet1; {103#true} is VALID [2020-07-18 00:23:27,947 INFO L280 TraceCheckUtils]: 14: Hoare triple {103#true} assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; {103#true} is VALID [2020-07-18 00:23:27,947 INFO L280 TraceCheckUtils]: 15: Hoare triple {103#true} assume 0 != #t~nondet4; {103#true} is VALID [2020-07-18 00:23:27,947 INFO L280 TraceCheckUtils]: 16: Hoare triple {103#true} havoc #t~nondet4; {103#true} is VALID [2020-07-18 00:23:27,948 INFO L280 TraceCheckUtils]: 17: Hoare triple {103#true} SUMMARY for call write~int(1, ~head~0.base, 12 + ~head~0.offset, 4); srcloc: L989-13 {103#true} is VALID [2020-07-18 00:23:27,948 INFO L280 TraceCheckUtils]: 18: Hoare triple {103#true} SUMMARY for call write~$Pointer$(~head~0.base, ~head~0.offset, ~head~0.base, 8 + ~head~0.offset, 4); srcloc: L989-14 {103#true} is VALID [2020-07-18 00:23:27,948 INFO L280 TraceCheckUtils]: 19: Hoare triple {103#true} ~x~0.base, ~x~0.offset := ~head~0.base, ~head~0.offset; {103#true} is VALID [2020-07-18 00:23:27,950 INFO L280 TraceCheckUtils]: 20: Hoare triple {103#true} assume !true; {104#false} is VALID [2020-07-18 00:23:27,951 INFO L280 TraceCheckUtils]: 21: Hoare triple {104#false} ~x~0.base, ~x~0.offset := ~head~0.base, ~head~0.offset; {104#false} is VALID [2020-07-18 00:23:27,951 INFO L280 TraceCheckUtils]: 22: Hoare triple {104#false} assume !!(~x~0.base != 0 || ~x~0.offset != 0); {104#false} is VALID [2020-07-18 00:23:27,952 INFO L280 TraceCheckUtils]: 23: Hoare triple {104#false} SUMMARY for call #t~mem13 := read~int(~x~0.base, 12 + ~x~0.offset, 4); srcloc: L998-16 {104#false} is VALID [2020-07-18 00:23:27,952 INFO L280 TraceCheckUtils]: 24: Hoare triple {104#false} #t~short15 := 2 == #t~mem13; {104#false} is VALID [2020-07-18 00:23:27,952 INFO L280 TraceCheckUtils]: 25: Hoare triple {104#false} assume !#t~short15; {104#false} is VALID [2020-07-18 00:23:27,953 INFO L280 TraceCheckUtils]: 26: Hoare triple {104#false} assume !#t~short15; {104#false} is VALID [2020-07-18 00:23:27,953 INFO L280 TraceCheckUtils]: 27: Hoare triple {104#false} havoc #t~mem14.base, #t~mem14.offset; {104#false} is VALID [2020-07-18 00:23:27,953 INFO L280 TraceCheckUtils]: 28: Hoare triple {104#false} havoc #t~mem13; {104#false} is VALID [2020-07-18 00:23:27,954 INFO L280 TraceCheckUtils]: 29: Hoare triple {104#false} havoc #t~short15; {104#false} is VALID [2020-07-18 00:23:27,954 INFO L280 TraceCheckUtils]: 30: Hoare triple {104#false} assume !false; {104#false} is VALID [2020-07-18 00:23:27,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 00:23:27,960 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:23:27,962 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1262423589] [2020-07-18 00:23:27,964 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:23:27,964 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-18 00:23:27,965 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933873432] [2020-07-18 00:23:27,971 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2020-07-18 00:23:27,974 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:23:27,978 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-18 00:23:28,031 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 31 edges. 31 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:23:28,031 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-18 00:23:28,031 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 00:23:28,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-18 00:23:28,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 00:23:28,043 INFO L87 Difference]: Start difference. First operand 100 states. Second operand 3 states. [2020-07-18 00:23:28,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:23:28,504 INFO L93 Difference]: Finished difference Result 139 states and 161 transitions. [2020-07-18 00:23:28,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-18 00:23:28,505 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2020-07-18 00:23:28,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 00:23:28,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 00:23:28,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 161 transitions. [2020-07-18 00:23:28,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 00:23:28,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 161 transitions. [2020-07-18 00:23:28,528 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 161 transitions. [2020-07-18 00:23:28,732 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 161 edges. 161 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:23:28,748 INFO L225 Difference]: With dead ends: 139 [2020-07-18 00:23:28,748 INFO L226 Difference]: Without dead ends: 81 [2020-07-18 00:23:28,752 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 00:23:28,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-07-18 00:23:28,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2020-07-18 00:23:28,851 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 00:23:28,852 INFO L82 GeneralOperation]: Start isEquivalent. First operand 81 states. Second operand 81 states. [2020-07-18 00:23:28,852 INFO L74 IsIncluded]: Start isIncluded. First operand 81 states. Second operand 81 states. [2020-07-18 00:23:28,853 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 81 states. [2020-07-18 00:23:28,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:23:28,861 INFO L93 Difference]: Finished difference Result 81 states and 87 transitions. [2020-07-18 00:23:28,861 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 87 transitions. [2020-07-18 00:23:28,862 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:23:28,863 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:23:28,863 INFO L74 IsIncluded]: Start isIncluded. First operand 81 states. Second operand 81 states. [2020-07-18 00:23:28,863 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 81 states. [2020-07-18 00:23:28,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:23:28,872 INFO L93 Difference]: Finished difference Result 81 states and 87 transitions. [2020-07-18 00:23:28,872 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 87 transitions. [2020-07-18 00:23:28,873 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:23:28,873 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:23:28,873 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 00:23:28,874 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 00:23:28,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-07-18 00:23:28,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 87 transitions. [2020-07-18 00:23:28,881 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 87 transitions. Word has length 31 [2020-07-18 00:23:28,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 00:23:28,881 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 87 transitions. [2020-07-18 00:23:28,881 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-18 00:23:28,882 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 81 states and 87 transitions. [2020-07-18 00:23:28,977 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 87 edges. 87 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:23:28,978 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 87 transitions. [2020-07-18 00:23:28,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-07-18 00:23:28,979 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:23:28,979 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 00:23:28,980 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-18 00:23:28,980 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:23:28,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:23:28,981 INFO L82 PathProgramCache]: Analyzing trace with hash 1364070485, now seen corresponding path program 1 times [2020-07-18 00:23:28,981 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:23:28,981 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [400791169] [2020-07-18 00:23:28,981 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:23:29,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-18 00:23:29,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-18 00:23:29,078 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:23:29,079 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-18 00:23:29,079 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-18 00:23:29,080 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-18 00:23:29,095 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-18 00:23:29,095 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-18 00:23:29,096 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-18 00:23:29,096 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-18 00:23:29,096 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-18 00:23:29,096 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-18 00:23:29,096 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-18 00:23:29,096 WARN L170 areAnnotationChecker]: L986 has no Hoare annotation [2020-07-18 00:23:29,097 WARN L170 areAnnotationChecker]: L-1-1 has no Hoare annotation [2020-07-18 00:23:29,097 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-18 00:23:29,097 WARN L170 areAnnotationChecker]: L987 has no Hoare annotation [2020-07-18 00:23:29,097 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-18 00:23:29,097 WARN L170 areAnnotationChecker]: L987-1 has no Hoare annotation [2020-07-18 00:23:29,097 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-18 00:23:29,097 WARN L170 areAnnotationChecker]: L988 has no Hoare annotation [2020-07-18 00:23:29,098 WARN L170 areAnnotationChecker]: L989 has no Hoare annotation [2020-07-18 00:23:29,098 WARN L170 areAnnotationChecker]: L989 has no Hoare annotation [2020-07-18 00:23:29,098 WARN L170 areAnnotationChecker]: L989-1 has no Hoare annotation [2020-07-18 00:23:29,098 WARN L170 areAnnotationChecker]: L989-9 has no Hoare annotation [2020-07-18 00:23:29,098 WARN L170 areAnnotationChecker]: L989-2 has no Hoare annotation [2020-07-18 00:23:29,098 WARN L170 areAnnotationChecker]: L989-10 has no Hoare annotation [2020-07-18 00:23:29,099 WARN L170 areAnnotationChecker]: L989-3 has no Hoare annotation [2020-07-18 00:23:29,099 WARN L170 areAnnotationChecker]: L989-11 has no Hoare annotation [2020-07-18 00:23:29,099 WARN L170 areAnnotationChecker]: L989-11 has no Hoare annotation [2020-07-18 00:23:29,099 WARN L170 areAnnotationChecker]: L989-4 has no Hoare annotation [2020-07-18 00:23:29,099 WARN L170 areAnnotationChecker]: L989-12 has no Hoare annotation [2020-07-18 00:23:29,099 WARN L170 areAnnotationChecker]: L989-16 has no Hoare annotation [2020-07-18 00:23:29,099 WARN L170 areAnnotationChecker]: L989-5 has no Hoare annotation [2020-07-18 00:23:29,100 WARN L170 areAnnotationChecker]: L989-13 has no Hoare annotation [2020-07-18 00:23:29,100 WARN L170 areAnnotationChecker]: L989-17 has no Hoare annotation [2020-07-18 00:23:29,100 WARN L170 areAnnotationChecker]: L989-6 has no Hoare annotation [2020-07-18 00:23:29,100 WARN L170 areAnnotationChecker]: L989-14 has no Hoare annotation [2020-07-18 00:23:29,100 WARN L170 areAnnotationChecker]: L989-18 has no Hoare annotation [2020-07-18 00:23:29,100 WARN L170 areAnnotationChecker]: L989-7 has no Hoare annotation [2020-07-18 00:23:29,100 WARN L170 areAnnotationChecker]: L989-19 has no Hoare annotation [2020-07-18 00:23:29,100 WARN L170 areAnnotationChecker]: L992-34 has no Hoare annotation [2020-07-18 00:23:29,101 WARN L170 areAnnotationChecker]: L992-34 has no Hoare annotation [2020-07-18 00:23:29,101 WARN L170 areAnnotationChecker]: L992-35 has no Hoare annotation [2020-07-18 00:23:29,101 WARN L170 areAnnotationChecker]: L992-1 has no Hoare annotation [2020-07-18 00:23:29,101 WARN L170 areAnnotationChecker]: L992-1 has no Hoare annotation [2020-07-18 00:23:29,101 WARN L170 areAnnotationChecker]: L996-2 has no Hoare annotation [2020-07-18 00:23:29,101 WARN L170 areAnnotationChecker]: L996-2 has no Hoare annotation [2020-07-18 00:23:29,101 WARN L170 areAnnotationChecker]: L996-2 has no Hoare annotation [2020-07-18 00:23:29,102 WARN L170 areAnnotationChecker]: L992-2 has no Hoare annotation [2020-07-18 00:23:29,102 WARN L170 areAnnotationChecker]: L992-4 has no Hoare annotation [2020-07-18 00:23:29,102 WARN L170 areAnnotationChecker]: L996-3 has no Hoare annotation [2020-07-18 00:23:29,102 WARN L170 areAnnotationChecker]: L998-16 has no Hoare annotation [2020-07-18 00:23:29,102 WARN L170 areAnnotationChecker]: L998-16 has no Hoare annotation [2020-07-18 00:23:29,102 WARN L170 areAnnotationChecker]: L992-5 has no Hoare annotation [2020-07-18 00:23:29,102 WARN L170 areAnnotationChecker]: L1010 has no Hoare annotation [2020-07-18 00:23:29,103 WARN L170 areAnnotationChecker]: L1010 has no Hoare annotation [2020-07-18 00:23:29,103 WARN L170 areAnnotationChecker]: L1010 has no Hoare annotation [2020-07-18 00:23:29,103 WARN L170 areAnnotationChecker]: L998-1 has no Hoare annotation [2020-07-18 00:23:29,103 WARN L170 areAnnotationChecker]: L998-17 has no Hoare annotation [2020-07-18 00:23:29,103 WARN L170 areAnnotationChecker]: L992-6 has no Hoare annotation [2020-07-18 00:23:29,103 WARN L170 areAnnotationChecker]: L1004-2 has no Hoare annotation [2020-07-18 00:23:29,103 WARN L170 areAnnotationChecker]: L1006 has no Hoare annotation [2020-07-18 00:23:29,103 WARN L170 areAnnotationChecker]: L998-2 has no Hoare annotation [2020-07-18 00:23:29,104 WARN L170 areAnnotationChecker]: L998-2 has no Hoare annotation [2020-07-18 00:23:29,104 WARN L170 areAnnotationChecker]: L999 has no Hoare annotation [2020-07-18 00:23:29,104 WARN L170 areAnnotationChecker]: L992-7 has no Hoare annotation [2020-07-18 00:23:29,104 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-18 00:23:29,104 WARN L170 areAnnotationChecker]: L1007 has no Hoare annotation [2020-07-18 00:23:29,104 WARN L170 areAnnotationChecker]: L998-3 has no Hoare annotation [2020-07-18 00:23:29,104 WARN L170 areAnnotationChecker]: L998-6 has no Hoare annotation [2020-07-18 00:23:29,105 WARN L170 areAnnotationChecker]: L998-6 has no Hoare annotation [2020-07-18 00:23:29,105 WARN L170 areAnnotationChecker]: L999-1 has no Hoare annotation [2020-07-18 00:23:29,105 WARN L170 areAnnotationChecker]: L992-8 has no Hoare annotation [2020-07-18 00:23:29,105 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-18 00:23:29,105 WARN L170 areAnnotationChecker]: L1007-1 has no Hoare annotation [2020-07-18 00:23:29,105 WARN L170 areAnnotationChecker]: L998-4 has no Hoare annotation [2020-07-18 00:23:29,105 WARN L170 areAnnotationChecker]: L998-7 has no Hoare annotation [2020-07-18 00:23:29,106 WARN L170 areAnnotationChecker]: L998-12 has no Hoare annotation [2020-07-18 00:23:29,106 WARN L170 areAnnotationChecker]: L992-9 has no Hoare annotation [2020-07-18 00:23:29,106 WARN L170 areAnnotationChecker]: L1007-2 has no Hoare annotation [2020-07-18 00:23:29,106 WARN L170 areAnnotationChecker]: L998-8 has no Hoare annotation [2020-07-18 00:23:29,106 WARN L170 areAnnotationChecker]: L998-13 has no Hoare annotation [2020-07-18 00:23:29,106 WARN L170 areAnnotationChecker]: L992-10 has no Hoare annotation [2020-07-18 00:23:29,106 WARN L170 areAnnotationChecker]: L1008 has no Hoare annotation [2020-07-18 00:23:29,107 WARN L170 areAnnotationChecker]: L998-9 has no Hoare annotation [2020-07-18 00:23:29,107 WARN L170 areAnnotationChecker]: L998-14 has no Hoare annotation [2020-07-18 00:23:29,107 WARN L170 areAnnotationChecker]: L992-11 has no Hoare annotation [2020-07-18 00:23:29,107 WARN L170 areAnnotationChecker]: L1008-1 has no Hoare annotation [2020-07-18 00:23:29,107 WARN L170 areAnnotationChecker]: L1008-1 has no Hoare annotation [2020-07-18 00:23:29,107 WARN L170 areAnnotationChecker]: L998-10 has no Hoare annotation [2020-07-18 00:23:29,107 WARN L170 areAnnotationChecker]: L998-10 has no Hoare annotation [2020-07-18 00:23:29,107 WARN L170 areAnnotationChecker]: L998-15 has no Hoare annotation [2020-07-18 00:23:29,108 WARN L170 areAnnotationChecker]: L998-15 has no Hoare annotation [2020-07-18 00:23:29,108 WARN L170 areAnnotationChecker]: L992-12 has no Hoare annotation [2020-07-18 00:23:29,108 WARN L170 areAnnotationChecker]: L1008-2 has no Hoare annotation [2020-07-18 00:23:29,108 WARN L170 areAnnotationChecker]: L1008-4 has no Hoare annotation [2020-07-18 00:23:29,108 WARN L170 areAnnotationChecker]: L992-13 has no Hoare annotation [2020-07-18 00:23:29,108 WARN L170 areAnnotationChecker]: L1009 has no Hoare annotation [2020-07-18 00:23:29,108 WARN L170 areAnnotationChecker]: L1008-5 has no Hoare annotation [2020-07-18 00:23:29,109 WARN L170 areAnnotationChecker]: L992-14 has no Hoare annotation [2020-07-18 00:23:29,109 WARN L170 areAnnotationChecker]: L1009-1 has no Hoare annotation [2020-07-18 00:23:29,109 WARN L170 areAnnotationChecker]: L992-15 has no Hoare annotation [2020-07-18 00:23:29,109 WARN L170 areAnnotationChecker]: L992-15 has no Hoare annotation [2020-07-18 00:23:29,109 WARN L170 areAnnotationChecker]: L1009-2 has no Hoare annotation [2020-07-18 00:23:29,109 WARN L170 areAnnotationChecker]: L992-16 has no Hoare annotation [2020-07-18 00:23:29,109 WARN L170 areAnnotationChecker]: L992-24 has no Hoare annotation [2020-07-18 00:23:29,109 WARN L170 areAnnotationChecker]: L992-17 has no Hoare annotation [2020-07-18 00:23:29,110 WARN L170 areAnnotationChecker]: L992-25 has no Hoare annotation [2020-07-18 00:23:29,110 WARN L170 areAnnotationChecker]: L992-18 has no Hoare annotation [2020-07-18 00:23:29,110 WARN L170 areAnnotationChecker]: L992-26 has no Hoare annotation [2020-07-18 00:23:29,110 WARN L170 areAnnotationChecker]: L992-26 has no Hoare annotation [2020-07-18 00:23:29,110 WARN L170 areAnnotationChecker]: L992-19 has no Hoare annotation [2020-07-18 00:23:29,110 WARN L170 areAnnotationChecker]: L992-27 has no Hoare annotation [2020-07-18 00:23:29,110 WARN L170 areAnnotationChecker]: L992-31 has no Hoare annotation [2020-07-18 00:23:29,111 WARN L170 areAnnotationChecker]: L992-20 has no Hoare annotation [2020-07-18 00:23:29,111 WARN L170 areAnnotationChecker]: L992-28 has no Hoare annotation [2020-07-18 00:23:29,111 WARN L170 areAnnotationChecker]: L992-32 has no Hoare annotation [2020-07-18 00:23:29,111 WARN L170 areAnnotationChecker]: L992-21 has no Hoare annotation [2020-07-18 00:23:29,111 WARN L170 areAnnotationChecker]: L992-29 has no Hoare annotation [2020-07-18 00:23:29,111 WARN L170 areAnnotationChecker]: L992-33 has no Hoare annotation [2020-07-18 00:23:29,111 WARN L170 areAnnotationChecker]: L992-22 has no Hoare annotation [2020-07-18 00:23:29,111 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-18 00:23:29,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.07 12:23:29 BoogieIcfgContainer [2020-07-18 00:23:29,115 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-18 00:23:29,119 INFO L168 Benchmark]: Toolchain (without parser) took 3195.33 ms. Allocated memory was 139.5 MB in the beginning and 248.0 MB in the end (delta: 108.5 MB). Free memory was 103.7 MB in the beginning and 174.1 MB in the end (delta: -70.4 MB). Peak memory consumption was 38.2 MB. Max. memory is 7.1 GB. [2020-07-18 00:23:29,120 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 139.5 MB. Free memory was 122.9 MB in the beginning and 122.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-18 00:23:29,121 INFO L168 Benchmark]: CACSL2BoogieTranslator took 670.44 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 103.3 MB in the beginning and 168.8 MB in the end (delta: -65.5 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. [2020-07-18 00:23:29,121 INFO L168 Benchmark]: Boogie Preprocessor took 82.01 ms. Allocated memory is still 203.9 MB. Free memory was 168.8 MB in the beginning and 165.4 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. [2020-07-18 00:23:29,122 INFO L168 Benchmark]: RCFGBuilder took 878.22 ms. Allocated memory is still 203.9 MB. Free memory was 165.4 MB in the beginning and 94.3 MB in the end (delta: 71.1 MB). Peak memory consumption was 71.1 MB. Max. memory is 7.1 GB. [2020-07-18 00:23:29,123 INFO L168 Benchmark]: TraceAbstraction took 1558.04 ms. Allocated memory was 203.9 MB in the beginning and 248.0 MB in the end (delta: 44.0 MB). Free memory was 93.6 MB in the beginning and 174.1 MB in the end (delta: -80.5 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-18 00:23:29,127 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 139.5 MB. Free memory was 122.9 MB in the beginning and 122.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 670.44 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 103.3 MB in the beginning and 168.8 MB in the end (delta: -65.5 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 82.01 ms. Allocated memory is still 203.9 MB. Free memory was 168.8 MB in the beginning and 165.4 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 878.22 ms. Allocated memory is still 203.9 MB. Free memory was 165.4 MB in the beginning and 94.3 MB in the end (delta: 71.1 MB). Peak memory consumption was 71.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1558.04 ms. Allocated memory was 203.9 MB in the beginning and 248.0 MB in the end (delta: 44.0 MB). Free memory was 93.6 MB in the beginning and 174.1 MB in the end (delta: -80.5 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 998]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L986] SLL* head = malloc(sizeof(SLL)); [L987] head->next = ((void*)0) [L988] head->prev = ((void*)0) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] COND TRUE __VERIFIER_nondet_int() [L989] head->data = 1 [L989] head->opt = head [L990] SLL* x = head; [L992] COND FALSE !(__VERIFIER_nondet_int()) [L995] x = head [L996] COND TRUE x != ((void*)0) [L998] EXPR x->data [L998] EXPR x->data == 2 && x->opt == x [L998] COND TRUE !(x->data == 2 && x->opt == x) [L998] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 100 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 107 SDtfs, 0 SDslu, 5 SDs, 0 SdLazy, 102 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=100occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...