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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/forester-heap/dll-circular-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 01:46:55,579 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 01:46:55,581 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 01:46:55,593 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 01:46:55,593 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 01:46:55,594 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 01:46:55,596 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 01:46:55,598 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 01:46:55,599 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 01:46:55,600 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 01:46:55,601 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 01:46:55,602 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 01:46:55,603 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 01:46:55,604 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 01:46:55,605 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 01:46:55,606 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 01:46:55,607 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 01:46:55,608 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 01:46:55,610 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 01:46:55,612 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 01:46:55,614 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 01:46:55,615 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 01:46:55,617 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 01:46:55,618 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 01:46:55,620 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 01:46:55,621 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 01:46:55,621 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 01:46:55,622 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 01:46:55,623 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 01:46:55,624 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 01:46:55,624 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 01:46:55,625 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 01:46:55,626 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 01:46:55,626 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 01:46:55,628 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 01:46:55,628 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 01:46:55,629 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 01:46:55,629 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 01:46:55,629 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 01:46:55,630 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 01:46:55,631 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 01:46:55,632 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-10 01:46:55,661 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 01:46:55,664 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 01:46:55,664 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 01:46:55,665 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 01:46:55,665 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 01:46:55,666 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 01:46:55,666 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 01:46:55,667 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 01:46:55,667 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 01:46:55,667 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 01:46:55,668 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 01:46:55,669 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 01:46:55,669 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 01:46:55,670 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 01:46:55,670 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 01:46:55,670 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 01:46:55,670 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 01:46:55,671 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 01:46:55,671 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 01:46:55,671 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 01:46:55,671 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 01:46:55,671 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 01:46:55,672 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 01:46:55,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 01:46:55,672 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 01:46:55,673 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 01:46:55,673 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 01:46:55,673 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 01:46:55,673 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 01:46:55,673 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 01:46:55,711 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 01:46:55,724 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 01:46:55,731 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 01:46:55,732 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 01:46:55,733 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 01:46:55,733 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-circular-1.i [2019-09-10 01:46:55,807 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d530fe7d0/53c83d5cfe4b496e8ff5d9eead63694f/FLAGa54ba517e [2019-09-10 01:46:56,334 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 01:46:56,336 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-circular-1.i [2019-09-10 01:46:56,354 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d530fe7d0/53c83d5cfe4b496e8ff5d9eead63694f/FLAGa54ba517e [2019-09-10 01:46:56,578 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d530fe7d0/53c83d5cfe4b496e8ff5d9eead63694f [2019-09-10 01:46:56,592 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 01:46:56,594 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 01:46:56,595 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 01:46:56,596 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 01:46:56,600 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 01:46:56,602 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:46:56" (1/1) ... [2019-09-10 01:46:56,605 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d699f66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:46:56, skipping insertion in model container [2019-09-10 01:46:56,605 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:46:56" (1/1) ... [2019-09-10 01:46:56,613 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 01:46:56,663 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 01:46:57,066 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:46:57,077 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 01:46:57,120 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:46:57,176 INFO L192 MainTranslator]: Completed translation [2019-09-10 01:46:57,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:46:57 WrapperNode [2019-09-10 01:46:57,178 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 01:46:57,179 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 01:46:57,179 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 01:46:57,179 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 01:46:57,193 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:46:57" (1/1) ... [2019-09-10 01:46:57,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:46:57" (1/1) ... [2019-09-10 01:46:57,223 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:46:57" (1/1) ... [2019-09-10 01:46:57,223 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:46:57" (1/1) ... [2019-09-10 01:46:57,253 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:46:57" (1/1) ... [2019-09-10 01:46:57,262 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:46:57" (1/1) ... [2019-09-10 01:46:57,272 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:46:57" (1/1) ... [2019-09-10 01:46:57,283 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 01:46:57,284 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 01:46:57,284 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 01:46:57,284 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 01:46:57,288 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:46:57" (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 [2019-09-10 01:46:57,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 01:46:57,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 01:46:57,341 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 01:46:57,341 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-09-10 01:46:57,341 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-09-10 01:46:57,341 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-09-10 01:46:57,341 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-09-10 01:46:57,342 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-09-10 01:46:57,342 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-09-10 01:46:57,342 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-09-10 01:46:57,343 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-09-10 01:46:57,343 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-09-10 01:46:57,343 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-09-10 01:46:57,344 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-09-10 01:46:57,344 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-09-10 01:46:57,344 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-09-10 01:46:57,344 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-09-10 01:46:57,344 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-09-10 01:46:57,344 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-09-10 01:46:57,345 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-09-10 01:46:57,345 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-09-10 01:46:57,345 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-09-10 01:46:57,345 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-09-10 01:46:57,345 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-09-10 01:46:57,345 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-09-10 01:46:57,346 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-09-10 01:46:57,346 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-09-10 01:46:57,346 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-09-10 01:46:57,346 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-09-10 01:46:57,346 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-09-10 01:46:57,346 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-09-10 01:46:57,346 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-09-10 01:46:57,346 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-09-10 01:46:57,347 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-09-10 01:46:57,347 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-09-10 01:46:57,347 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-09-10 01:46:57,347 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-09-10 01:46:57,347 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-09-10 01:46:57,347 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-09-10 01:46:57,347 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-09-10 01:46:57,348 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-09-10 01:46:57,348 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-09-10 01:46:57,348 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-09-10 01:46:57,348 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-09-10 01:46:57,348 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-09-10 01:46:57,348 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-09-10 01:46:57,348 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-09-10 01:46:57,348 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-09-10 01:46:57,349 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-09-10 01:46:57,349 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-09-10 01:46:57,349 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-09-10 01:46:57,349 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-09-10 01:46:57,349 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-09-10 01:46:57,349 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 01:46:57,350 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-10 01:46:57,350 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-09-10 01:46:57,350 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 01:46:57,350 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-09-10 01:46:57,350 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-09-10 01:46:57,350 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-09-10 01:46:57,350 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-09-10 01:46:57,351 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-09-10 01:46:57,351 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-09-10 01:46:57,351 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-09-10 01:46:57,351 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-09-10 01:46:57,351 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-09-10 01:46:57,351 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-10 01:46:57,352 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-09-10 01:46:57,352 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-09-10 01:46:57,352 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-09-10 01:46:57,352 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-09-10 01:46:57,352 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-09-10 01:46:57,352 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-09-10 01:46:57,352 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-09-10 01:46:57,353 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-09-10 01:46:57,353 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-09-10 01:46:57,353 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-09-10 01:46:57,353 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-09-10 01:46:57,353 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-09-10 01:46:57,353 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-09-10 01:46:57,354 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-09-10 01:46:57,354 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-09-10 01:46:57,354 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-09-10 01:46:57,354 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-09-10 01:46:57,354 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-09-10 01:46:57,354 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-09-10 01:46:57,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-09-10 01:46:57,355 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-09-10 01:46:57,355 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-09-10 01:46:57,355 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-09-10 01:46:57,355 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-09-10 01:46:57,355 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-09-10 01:46:57,355 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-09-10 01:46:57,356 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-09-10 01:46:57,356 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-09-10 01:46:57,356 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-09-10 01:46:57,356 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-09-10 01:46:57,356 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-09-10 01:46:57,356 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-09-10 01:46:57,356 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-09-10 01:46:57,357 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-09-10 01:46:57,357 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-09-10 01:46:57,357 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-09-10 01:46:57,357 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-09-10 01:46:57,357 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-09-10 01:46:57,357 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-09-10 01:46:57,357 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 01:46:57,358 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 01:46:57,358 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 01:46:57,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 01:46:57,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 01:46:57,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 01:46:57,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 01:46:57,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 01:46:57,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 01:46:57,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 01:46:57,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 01:46:57,964 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 01:46:57,965 INFO L283 CfgBuilder]: Removed 9 assume(true) statements. [2019-09-10 01:46:57,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:46:57 BoogieIcfgContainer [2019-09-10 01:46:57,966 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 01:46:57,968 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 01:46:57,968 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 01:46:57,971 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 01:46:57,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 01:46:56" (1/3) ... [2019-09-10 01:46:57,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1287d852 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:46:57, skipping insertion in model container [2019-09-10 01:46:57,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:46:57" (2/3) ... [2019-09-10 01:46:57,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1287d852 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:46:57, skipping insertion in model container [2019-09-10 01:46:57,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:46:57" (3/3) ... [2019-09-10 01:46:57,975 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-circular-1.i [2019-09-10 01:46:57,985 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 01:46:57,993 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-09-10 01:46:58,010 INFO L252 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-09-10 01:46:58,042 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 01:46:58,043 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 01:46:58,043 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 01:46:58,043 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 01:46:58,043 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 01:46:58,044 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 01:46:58,044 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 01:46:58,044 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 01:46:58,060 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2019-09-10 01:46:58,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-09-10 01:46:58,071 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:46:58,072 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:46:58,075 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:46:58,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:46:58,082 INFO L82 PathProgramCache]: Analyzing trace with hash 697609371, now seen corresponding path program 1 times [2019-09-10 01:46:58,084 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:46:58,145 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:46:58,145 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:46:58,145 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:46:58,146 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:46:58,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:46:58,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:46:58,238 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:46:58,238 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 01:46:58,239 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:46:58,244 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 01:46:58,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 01:46:58,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 01:46:58,264 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2019-09-10 01:46:58,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:46:58,285 INFO L93 Difference]: Finished difference Result 37 states and 43 transitions. [2019-09-10 01:46:58,285 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 01:46:58,287 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-09-10 01:46:58,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:46:58,300 INFO L225 Difference]: With dead ends: 37 [2019-09-10 01:46:58,300 INFO L226 Difference]: Without dead ends: 29 [2019-09-10 01:46:58,302 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 [2019-09-10 01:46:58,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-09-10 01:46:58,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-09-10 01:46:58,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-09-10 01:46:58,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2019-09-10 01:46:58,349 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 10 [2019-09-10 01:46:58,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:46:58,349 INFO L475 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2019-09-10 01:46:58,349 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 01:46:58,350 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2019-09-10 01:46:58,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-09-10 01:46:58,350 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:46:58,351 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:46:58,351 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:46:58,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:46:58,352 INFO L82 PathProgramCache]: Analyzing trace with hash 110085658, now seen corresponding path program 1 times [2019-09-10 01:46:58,352 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:46:58,354 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:46:58,355 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:46:58,355 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:46:58,355 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:46:58,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:46:58,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:46:58,530 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:46:58,530 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-10 01:46:58,530 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:46:58,532 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 01:46:58,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 01:46:58,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 01:46:58,533 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand 4 states. [2019-09-10 01:46:58,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:46:58,656 INFO L93 Difference]: Finished difference Result 38 states and 45 transitions. [2019-09-10 01:46:58,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-10 01:46:58,658 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-09-10 01:46:58,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:46:58,659 INFO L225 Difference]: With dead ends: 38 [2019-09-10 01:46:58,659 INFO L226 Difference]: Without dead ends: 38 [2019-09-10 01:46:58,660 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 [2019-09-10 01:46:58,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-09-10 01:46:58,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 30. [2019-09-10 01:46:58,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-09-10 01:46:58,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 36 transitions. [2019-09-10 01:46:58,672 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 36 transitions. Word has length 11 [2019-09-10 01:46:58,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:46:58,672 INFO L475 AbstractCegarLoop]: Abstraction has 30 states and 36 transitions. [2019-09-10 01:46:58,672 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 01:46:58,673 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2019-09-10 01:46:58,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-09-10 01:46:58,673 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:46:58,674 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:46:58,674 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:46:58,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:46:58,674 INFO L82 PathProgramCache]: Analyzing trace with hash -1113502754, now seen corresponding path program 1 times [2019-09-10 01:46:58,675 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:46:58,677 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:46:58,677 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:46:58,678 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:46:58,678 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:46:58,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:46:58,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:46:58,783 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:46:58,783 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 01:46:58,783 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:46:58,784 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 01:46:58,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 01:46:58,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 01:46:58,784 INFO L87 Difference]: Start difference. First operand 30 states and 36 transitions. Second operand 3 states. [2019-09-10 01:46:58,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:46:58,810 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2019-09-10 01:46:58,810 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 01:46:58,811 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2019-09-10 01:46:58,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:46:58,814 INFO L225 Difference]: With dead ends: 49 [2019-09-10 01:46:58,814 INFO L226 Difference]: Without dead ends: 49 [2019-09-10 01:46:58,814 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 01:46:58,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-09-10 01:46:58,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 36. [2019-09-10 01:46:58,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-09-10 01:46:58,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2019-09-10 01:46:58,821 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 14 [2019-09-10 01:46:58,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:46:58,822 INFO L475 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2019-09-10 01:46:58,822 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 01:46:58,822 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2019-09-10 01:46:58,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-09-10 01:46:58,823 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:46:58,823 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:46:58,823 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:46:58,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:46:58,824 INFO L82 PathProgramCache]: Analyzing trace with hash 488230675, now seen corresponding path program 1 times [2019-09-10 01:46:58,824 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:46:58,826 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:46:58,826 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:46:58,826 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:46:58,826 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:46:58,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-10 01:46:58,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-10 01:46:58,921 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-10 01:46:58,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 01:46:58 BoogieIcfgContainer [2019-09-10 01:46:58,950 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 01:46:58,953 INFO L168 Benchmark]: Toolchain (without parser) took 2357.95 ms. Allocated memory was 133.2 MB in the beginning and 224.9 MB in the end (delta: 91.8 MB). Free memory was 86.8 MB in the beginning and 181.8 MB in the end (delta: -95.0 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-10 01:46:58,954 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 133.2 MB. Free memory was 106.4 MB in the beginning and 106.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 01:46:58,955 INFO L168 Benchmark]: CACSL2BoogieTranslator took 583.02 ms. Allocated memory was 133.2 MB in the beginning and 199.8 MB in the end (delta: 66.6 MB). Free memory was 86.6 MB in the beginning and 164.8 MB in the end (delta: -78.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. [2019-09-10 01:46:58,956 INFO L168 Benchmark]: Boogie Preprocessor took 104.05 ms. Allocated memory is still 199.8 MB. Free memory was 164.8 MB in the beginning and 161.9 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2019-09-10 01:46:58,957 INFO L168 Benchmark]: RCFGBuilder took 682.78 ms. Allocated memory is still 199.8 MB. Free memory was 161.3 MB in the beginning and 118.1 MB in the end (delta: 43.2 MB). Peak memory consumption was 43.2 MB. Max. memory is 7.1 GB. [2019-09-10 01:46:58,957 INFO L168 Benchmark]: TraceAbstraction took 982.75 ms. Allocated memory was 199.8 MB in the beginning and 224.9 MB in the end (delta: 25.2 MB). Free memory was 117.5 MB in the beginning and 181.8 MB in the end (delta: -64.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-10 01:46:58,962 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 133.2 MB. Free memory was 106.4 MB in the beginning and 106.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 583.02 ms. Allocated memory was 133.2 MB in the beginning and 199.8 MB in the end (delta: 66.6 MB). Free memory was 86.6 MB in the beginning and 164.8 MB in the end (delta: -78.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 104.05 ms. Allocated memory is still 199.8 MB. Free memory was 164.8 MB in the beginning and 161.9 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 682.78 ms. Allocated memory is still 199.8 MB. Free memory was 161.3 MB in the beginning and 118.1 MB in the end (delta: 43.2 MB). Peak memory consumption was 43.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 982.75 ms. Allocated memory was 199.8 MB in the beginning and 224.9 MB in the end (delta: 25.2 MB). Free memory was 117.5 MB in the beginning and 181.8 MB in the end (delta: -64.3 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1023]: 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 = head [L988] head->data = 0 [L990] SLL* x = head; [L991] int state = 1; VAL [head={2:0}, malloc(sizeof(SLL))={2:0}, state=1, x={2:0}] [L994] COND FALSE !(__VERIFIER_nondet_int()) [L1016] x->data = state [L1018] EXPR head->next [L1018] x = head->next [L1019] COND FALSE !(!(((void*)0) != x)) VAL [head={2:0}, malloc(sizeof(SLL))={2:0}, state=1, x={2:0}] [L1021] EXPR x->data VAL [head={2:0}, malloc(sizeof(SLL))={2:0}, state=1, x={2:0}, x->data=1] [L1021] COND TRUE x->data != 0 [L1023] EXPR x->next [L1023] EXPR x->next->data [L1023] EXPR x->next->data != 0 && x->data > x->next->data [L1023] EXPR x->data [L1023] EXPR x->next [L1023] EXPR x->next->data [L1023] EXPR x->next->data != 0 && x->data > x->next->data VAL [head={2:0}, malloc(sizeof(SLL))={2:0}, state=1, x={2:0}, x->data=1, x->next={2:0}, x->next={2:0}, x->next->data=1, x->next->data=1, x->next->data != 0 && x->data > x->next->data=0] [L1023] COND TRUE !(x->next->data != 0 && x->data > x->next->data) [L1023] __VERIFIER_error() VAL [head={2:0}, malloc(sizeof(SLL))={2:0}, state=1, x={2:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 38 locations, 3 error locations. UNSAFE Result, 0.9s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 95 SDtfs, 40 SDslu, 54 SDs, 0 SdLazy, 37 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred 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, 3 MinimizatonAttempts, 21 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 994 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...