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/sll-sorted-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 01:47:27,541 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 01:47:27,543 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 01:47:27,561 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 01:47:27,561 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 01:47:27,563 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 01:47:27,565 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 01:47:27,578 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 01:47:27,579 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 01:47:27,580 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 01:47:27,582 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 01:47:27,583 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 01:47:27,584 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 01:47:27,586 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 01:47:27,587 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 01:47:27,590 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 01:47:27,591 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 01:47:27,592 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 01:47:27,597 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 01:47:27,602 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 01:47:27,604 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 01:47:27,607 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 01:47:27,608 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 01:47:27,609 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 01:47:27,611 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 01:47:27,611 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 01:47:27,611 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 01:47:27,612 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 01:47:27,613 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 01:47:27,613 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 01:47:27,614 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 01:47:27,614 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 01:47:27,615 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 01:47:27,616 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 01:47:27,617 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 01:47:27,617 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 01:47:27,617 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 01:47:27,618 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 01:47:27,618 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 01:47:27,619 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 01:47:27,619 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 01:47:27,620 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 01:47:27,647 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 01:47:27,647 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 01:47:27,650 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 01:47:27,651 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 01:47:27,651 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 01:47:27,651 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 01:47:27,652 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 01:47:27,652 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 01:47:27,652 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 01:47:27,653 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 01:47:27,655 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 01:47:27,655 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 01:47:27,655 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 01:47:27,656 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 01:47:27,656 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 01:47:27,656 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 01:47:27,656 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 01:47:27,657 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 01:47:27,657 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 01:47:27,657 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 01:47:27,658 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 01:47:27,658 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 01:47:27,658 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 01:47:27,659 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 01:47:27,659 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 01:47:27,659 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 01:47:27,659 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 01:47:27,659 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 01:47:27,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 01:47:27,660 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 01:47:27,703 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 01:47:27,721 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 01:47:27,726 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 01:47:27,728 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 01:47:27,728 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 01:47:27,729 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/sll-sorted-1.i [2019-09-10 01:47:27,793 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d8423ea0/81f24db0c45f48fab906c89948d13ae1/FLAGd9a234f50 [2019-09-10 01:47:28,286 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 01:47:28,286 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-sorted-1.i [2019-09-10 01:47:28,303 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d8423ea0/81f24db0c45f48fab906c89948d13ae1/FLAGd9a234f50 [2019-09-10 01:47:28,598 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d8423ea0/81f24db0c45f48fab906c89948d13ae1 [2019-09-10 01:47:28,607 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 01:47:28,608 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 01:47:28,609 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 01:47:28,609 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 01:47:28,612 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 01:47:28,613 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:47:28" (1/1) ... [2019-09-10 01:47:28,616 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10f6cef3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:28, skipping insertion in model container [2019-09-10 01:47:28,616 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:47:28" (1/1) ... [2019-09-10 01:47:28,623 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 01:47:28,672 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 01:47:29,082 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:47:29,093 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 01:47:29,147 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:47:29,199 INFO L192 MainTranslator]: Completed translation [2019-09-10 01:47:29,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:29 WrapperNode [2019-09-10 01:47:29,200 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 01:47:29,200 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 01:47:29,201 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 01:47:29,201 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 01:47:29,215 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:29" (1/1) ... [2019-09-10 01:47:29,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:29" (1/1) ... [2019-09-10 01:47:29,232 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:29" (1/1) ... [2019-09-10 01:47:29,233 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:29" (1/1) ... [2019-09-10 01:47:29,254 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:29" (1/1) ... [2019-09-10 01:47:29,263 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:29" (1/1) ... [2019-09-10 01:47:29,266 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:29" (1/1) ... [2019-09-10 01:47:29,273 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 01:47:29,274 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 01:47:29,274 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 01:47:29,274 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 01:47:29,275 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:29" (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 01:47:29,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 01:47:29,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 01:47:29,343 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 01:47:29,343 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-09-10 01:47:29,343 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-09-10 01:47:29,343 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-09-10 01:47:29,343 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-09-10 01:47:29,344 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-09-10 01:47:29,344 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-09-10 01:47:29,344 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-09-10 01:47:29,345 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-09-10 01:47:29,345 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-09-10 01:47:29,345 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-09-10 01:47:29,346 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-09-10 01:47:29,346 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-09-10 01:47:29,347 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-09-10 01:47:29,347 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-09-10 01:47:29,347 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-09-10 01:47:29,348 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-09-10 01:47:29,348 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-09-10 01:47:29,348 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-09-10 01:47:29,348 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-09-10 01:47:29,348 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-09-10 01:47:29,348 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-09-10 01:47:29,348 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-09-10 01:47:29,349 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-09-10 01:47:29,349 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-09-10 01:47:29,350 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-09-10 01:47:29,350 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-09-10 01:47:29,350 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-09-10 01:47:29,350 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-09-10 01:47:29,350 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-09-10 01:47:29,350 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-09-10 01:47:29,351 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-09-10 01:47:29,351 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-09-10 01:47:29,351 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-09-10 01:47:29,351 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-09-10 01:47:29,351 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-09-10 01:47:29,351 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-09-10 01:47:29,351 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-09-10 01:47:29,352 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-09-10 01:47:29,352 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-09-10 01:47:29,352 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-09-10 01:47:29,352 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-09-10 01:47:29,352 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-09-10 01:47:29,353 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-09-10 01:47:29,353 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-09-10 01:47:29,353 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-09-10 01:47:29,353 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-09-10 01:47:29,354 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-09-10 01:47:29,354 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-09-10 01:47:29,354 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-09-10 01:47:29,354 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-09-10 01:47:29,354 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 01:47:29,354 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-10 01:47:29,355 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-09-10 01:47:29,355 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 01:47:29,355 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-09-10 01:47:29,355 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-09-10 01:47:29,355 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-09-10 01:47:29,355 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-09-10 01:47:29,355 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-09-10 01:47:29,356 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-09-10 01:47:29,356 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-09-10 01:47:29,356 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-09-10 01:47:29,356 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-09-10 01:47:29,357 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-10 01:47:29,357 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-09-10 01:47:29,358 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-09-10 01:47:29,358 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-09-10 01:47:29,358 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-09-10 01:47:29,358 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-09-10 01:47:29,358 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-09-10 01:47:29,359 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-09-10 01:47:29,359 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-09-10 01:47:29,359 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-09-10 01:47:29,359 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-09-10 01:47:29,359 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-09-10 01:47:29,360 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-09-10 01:47:29,360 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-09-10 01:47:29,360 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-09-10 01:47:29,361 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-09-10 01:47:29,361 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-09-10 01:47:29,361 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-09-10 01:47:29,362 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-09-10 01:47:29,362 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-09-10 01:47:29,363 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-09-10 01:47:29,363 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-09-10 01:47:29,363 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-09-10 01:47:29,364 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-09-10 01:47:29,364 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-09-10 01:47:29,364 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-09-10 01:47:29,364 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-09-10 01:47:29,364 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-09-10 01:47:29,364 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-09-10 01:47:29,365 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-09-10 01:47:29,365 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-09-10 01:47:29,365 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-09-10 01:47:29,365 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-09-10 01:47:29,365 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-09-10 01:47:29,365 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-09-10 01:47:29,366 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-09-10 01:47:29,366 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-09-10 01:47:29,366 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-09-10 01:47:29,366 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-09-10 01:47:29,366 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-09-10 01:47:29,366 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 01:47:29,366 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 01:47:29,367 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 01:47:29,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 01:47:29,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 01:47:29,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 01:47:29,367 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 01:47:29,367 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 01:47:29,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 01:47:29,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 01:47:29,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 01:47:29,998 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 01:47:29,999 INFO L283 CfgBuilder]: Removed 18 assume(true) statements. [2019-09-10 01:47:30,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:47:30 BoogieIcfgContainer [2019-09-10 01:47:30,001 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 01:47:30,003 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 01:47:30,003 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 01:47:30,006 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 01:47:30,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 01:47:28" (1/3) ... [2019-09-10 01:47:30,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51976b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:47:30, skipping insertion in model container [2019-09-10 01:47:30,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:29" (2/3) ... [2019-09-10 01:47:30,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51976b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:47:30, skipping insertion in model container [2019-09-10 01:47:30,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:47:30" (3/3) ... [2019-09-10 01:47:30,012 INFO L109 eAbstractionObserver]: Analyzing ICFG sll-sorted-1.i [2019-09-10 01:47:30,023 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 01:47:30,034 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2019-09-10 01:47:30,052 INFO L252 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-09-10 01:47:30,089 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 01:47:30,090 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 01:47:30,090 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 01:47:30,090 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 01:47:30,091 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 01:47:30,092 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 01:47:30,095 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 01:47:30,096 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 01:47:30,119 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states. [2019-09-10 01:47:30,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-09-10 01:47:30,130 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:47:30,132 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:47:30,134 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:47:30,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:47:30,140 INFO L82 PathProgramCache]: Analyzing trace with hash -1007014106, now seen corresponding path program 1 times [2019-09-10 01:47:30,142 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:47:30,196 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:30,196 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:47:30,196 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:30,196 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:47:30,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:47:30,320 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 01:47:30,322 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:47:30,323 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 01:47:30,324 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:47:30,328 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 01:47:30,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 01:47:30,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 01:47:30,343 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 2 states. [2019-09-10 01:47:30,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:47:30,363 INFO L93 Difference]: Finished difference Result 56 states and 67 transitions. [2019-09-10 01:47:30,364 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 01:47:30,365 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-09-10 01:47:30,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:47:30,375 INFO L225 Difference]: With dead ends: 56 [2019-09-10 01:47:30,376 INFO L226 Difference]: Without dead ends: 49 [2019-09-10 01:47:30,377 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 01:47:30,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-09-10 01:47:30,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2019-09-10 01:47:30,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2019-09-10 01:47:30,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 59 transitions. [2019-09-10 01:47:30,421 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 59 transitions. Word has length 10 [2019-09-10 01:47:30,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:47:30,421 INFO L475 AbstractCegarLoop]: Abstraction has 49 states and 59 transitions. [2019-09-10 01:47:30,421 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 01:47:30,422 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 59 transitions. [2019-09-10 01:47:30,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-09-10 01:47:30,422 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:47:30,422 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:47:30,423 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:47:30,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:47:30,424 INFO L82 PathProgramCache]: Analyzing trace with hash -1170755113, now seen corresponding path program 1 times [2019-09-10 01:47:30,424 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:47:30,426 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:30,426 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:47:30,426 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:30,426 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:47:30,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:47:30,501 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 01:47:30,502 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:47:30,502 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 01:47:30,502 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:47:30,505 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 01:47:30,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 01:47:30,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 01:47:30,509 INFO L87 Difference]: Start difference. First operand 49 states and 59 transitions. Second operand 3 states. [2019-09-10 01:47:30,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:47:30,585 INFO L93 Difference]: Finished difference Result 54 states and 65 transitions. [2019-09-10 01:47:30,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 01:47:30,586 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-09-10 01:47:30,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:47:30,587 INFO L225 Difference]: With dead ends: 54 [2019-09-10 01:47:30,587 INFO L226 Difference]: Without dead ends: 54 [2019-09-10 01:47:30,588 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 01:47:30,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2019-09-10 01:47:30,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 53. [2019-09-10 01:47:30,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2019-09-10 01:47:30,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 64 transitions. [2019-09-10 01:47:30,596 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 64 transitions. Word has length 11 [2019-09-10 01:47:30,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:47:30,597 INFO L475 AbstractCegarLoop]: Abstraction has 53 states and 64 transitions. [2019-09-10 01:47:30,597 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 01:47:30,597 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 64 transitions. [2019-09-10 01:47:30,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-09-10 01:47:30,598 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:47:30,598 INFO L399 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:47:30,599 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:47:30,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:47:30,600 INFO L82 PathProgramCache]: Analyzing trace with hash -1725322068, now seen corresponding path program 1 times [2019-09-10 01:47:30,600 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:47:30,602 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:30,602 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:47:30,602 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:30,602 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:47:30,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:47:30,709 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-09-10 01:47:30,709 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:47:30,709 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-10 01:47:30,709 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:47:30,710 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 01:47:30,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 01:47:30,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 01:47:30,713 INFO L87 Difference]: Start difference. First operand 53 states and 64 transitions. Second operand 4 states. [2019-09-10 01:47:30,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:47:30,831 INFO L93 Difference]: Finished difference Result 80 states and 98 transitions. [2019-09-10 01:47:30,832 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-10 01:47:30,832 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2019-09-10 01:47:30,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:47:30,833 INFO L225 Difference]: With dead ends: 80 [2019-09-10 01:47:30,833 INFO L226 Difference]: Without dead ends: 80 [2019-09-10 01:47:30,834 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 01:47:30,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2019-09-10 01:47:30,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 51. [2019-09-10 01:47:30,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2019-09-10 01:47:30,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 62 transitions. [2019-09-10 01:47:30,840 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 62 transitions. Word has length 15 [2019-09-10 01:47:30,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:47:30,841 INFO L475 AbstractCegarLoop]: Abstraction has 51 states and 62 transitions. [2019-09-10 01:47:30,841 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 01:47:30,841 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 62 transitions. [2019-09-10 01:47:30,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-09-10 01:47:30,842 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:47:30,842 INFO L399 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:47:30,843 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:47:30,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:47:30,843 INFO L82 PathProgramCache]: Analyzing trace with hash -2189930, now seen corresponding path program 1 times [2019-09-10 01:47:30,843 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:47:30,845 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:30,845 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:47:30,845 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:30,845 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:47:30,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:47:31,177 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:47:31,177 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 01:47:31,178 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 01:47:31,179 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 25 with the following transitions: [2019-09-10 01:47:31,180 INFO L207 CegarAbsIntRunner]: [0], [1], [2], [7], [10], [12], [15], [21], [28], [38], [52], [55], [61], [70], [73], [81], [85], [88], [89], [231], [254], [255], [256] [2019-09-10 01:47:31,223 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 01:47:31,225 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 01:47:31,312 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 01:47:31,314 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 19 root evaluator evaluations with a maximum evaluation depth of 0. Performed 19 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 42 variables. [2019-09-10 01:47:31,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:47:31,319 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 01:47:31,367 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-09-10 01:47:31,367 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 01:47:31,369 INFO L420 sIntCurrentIteration]: We unified 23 AI predicates to 23 [2019-09-10 01:47:31,369 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 01:47:31,370 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 01:47:31,370 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2019-09-10 01:47:31,370 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:47:31,370 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 01:47:31,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 01:47:31,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 01:47:31,371 INFO L87 Difference]: Start difference. First operand 51 states and 62 transitions. Second operand 2 states. [2019-09-10 01:47:31,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:47:31,372 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2019-09-10 01:47:31,372 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 01:47:31,372 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2019-09-10 01:47:31,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:47:31,373 INFO L225 Difference]: With dead ends: 6 [2019-09-10 01:47:31,373 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 01:47:31,373 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 23 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 01:47:31,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 01:47:31,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 01:47:31,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 01:47:31,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 01:47:31,374 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2019-09-10 01:47:31,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:47:31,375 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 01:47:31,375 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 01:47:31,375 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 01:47:31,375 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 01:47:31,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 01:47:31 BoogieIcfgContainer [2019-09-10 01:47:31,381 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 01:47:31,383 INFO L168 Benchmark]: Toolchain (without parser) took 2774.21 ms. Allocated memory was 136.8 MB in the beginning and 234.4 MB in the end (delta: 97.5 MB). Free memory was 92.3 MB in the beginning and 136.6 MB in the end (delta: -44.4 MB). Peak memory consumption was 53.1 MB. Max. memory is 7.1 GB. [2019-09-10 01:47:31,384 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 136.8 MB. Free memory is still 111.0 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-10 01:47:31,387 INFO L168 Benchmark]: CACSL2BoogieTranslator took 591.33 ms. Allocated memory was 136.8 MB in the beginning and 202.4 MB in the end (delta: 65.5 MB). Free memory was 91.9 MB in the beginning and 167.4 MB in the end (delta: -75.5 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2019-09-10 01:47:31,389 INFO L168 Benchmark]: Boogie Preprocessor took 73.04 ms. Allocated memory is still 202.4 MB. Free memory was 167.4 MB in the beginning and 163.8 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. [2019-09-10 01:47:31,390 INFO L168 Benchmark]: RCFGBuilder took 727.69 ms. Allocated memory is still 202.4 MB. Free memory was 163.8 MB in the beginning and 112.8 MB in the end (delta: 51.0 MB). Peak memory consumption was 51.0 MB. Max. memory is 7.1 GB. [2019-09-10 01:47:31,392 INFO L168 Benchmark]: TraceAbstraction took 1377.77 ms. Allocated memory was 202.4 MB in the beginning and 234.4 MB in the end (delta: 32.0 MB). Free memory was 112.8 MB in the beginning and 136.6 MB in the end (delta: -23.9 MB). Peak memory consumption was 8.1 MB. Max. memory is 7.1 GB. [2019-09-10 01:47:31,401 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 136.8 MB. Free memory is still 111.0 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 591.33 ms. Allocated memory was 136.8 MB in the beginning and 202.4 MB in the end (delta: 65.5 MB). Free memory was 91.9 MB in the beginning and 167.4 MB in the end (delta: -75.5 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 73.04 ms. Allocated memory is still 202.4 MB. Free memory was 167.4 MB in the beginning and 163.8 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 727.69 ms. Allocated memory is still 202.4 MB. Free memory was 163.8 MB in the beginning and 112.8 MB in the end (delta: 51.0 MB). Peak memory consumption was 51.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1377.77 ms. Allocated memory was 202.4 MB in the beginning and 234.4 MB in the end (delta: 32.0 MB). Free memory was 112.8 MB in the beginning and 136.6 MB in the end (delta: -23.9 MB). Peak memory consumption was 8.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1051]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1044]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1045]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1052]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1013]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1024]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 61 locations, 6 error locations. SAFE Result, 1.3s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 164 SDtfs, 141 SDslu, 54 SDs, 0 SdLazy, 51 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=61occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9239130434782609 AbsIntWeakeningRatio, 1.608695652173913 AbsIntAvgWeakeningVarsNumRemoved, 0.2608695652173913 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 30 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 56 ConstructedInterpolants, 0 QuantifiedInterpolants, 8366 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 2/4 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...