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-queue-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 01:47:20,389 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 01:47:20,391 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 01:47:20,402 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 01:47:20,402 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 01:47:20,403 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 01:47:20,404 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 01:47:20,406 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 01:47:20,408 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 01:47:20,409 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 01:47:20,409 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 01:47:20,410 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 01:47:20,411 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 01:47:20,412 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 01:47:20,413 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 01:47:20,414 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 01:47:20,414 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 01:47:20,415 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 01:47:20,417 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 01:47:20,419 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 01:47:20,420 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 01:47:20,421 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 01:47:20,422 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 01:47:20,423 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 01:47:20,425 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 01:47:20,425 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 01:47:20,426 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 01:47:20,426 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 01:47:20,427 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 01:47:20,428 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 01:47:20,428 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 01:47:20,429 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 01:47:20,429 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 01:47:20,430 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 01:47:20,431 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 01:47:20,431 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 01:47:20,432 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 01:47:20,432 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 01:47:20,432 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 01:47:20,434 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 01:47:20,434 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 01:47:20,435 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 01:47:20,458 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 01:47:20,459 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 01:47:20,459 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 01:47:20,460 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 01:47:20,461 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 01:47:20,461 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 01:47:20,461 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 01:47:20,461 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 01:47:20,461 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 01:47:20,462 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 01:47:20,464 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 01:47:20,464 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 01:47:20,464 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 01:47:20,464 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 01:47:20,465 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 01:47:20,465 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 01:47:20,465 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 01:47:20,465 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 01:47:20,465 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 01:47:20,466 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 01:47:20,466 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 01:47:20,466 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 01:47:20,466 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 01:47:20,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 01:47:20,467 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 01:47:20,467 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 01:47:20,467 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 01:47:20,468 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 01:47:20,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 01:47:20,468 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 01:47:20,517 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 01:47:20,533 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 01:47:20,538 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 01:47:20,540 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 01:47:20,540 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 01:47:20,541 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/sll-queue-1.i [2019-09-10 01:47:20,598 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab232d6d5/0c55cbc5036d443e9d103b7526739f02/FLAGeec052f9b [2019-09-10 01:47:21,094 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 01:47:21,094 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-queue-1.i [2019-09-10 01:47:21,110 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab232d6d5/0c55cbc5036d443e9d103b7526739f02/FLAGeec052f9b [2019-09-10 01:47:21,431 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab232d6d5/0c55cbc5036d443e9d103b7526739f02 [2019-09-10 01:47:21,441 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 01:47:21,443 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 01:47:21,444 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 01:47:21,444 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 01:47:21,447 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 01:47:21,448 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:47:21" (1/1) ... [2019-09-10 01:47:21,451 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@206013e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:21, skipping insertion in model container [2019-09-10 01:47:21,451 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:47:21" (1/1) ... [2019-09-10 01:47:21,458 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 01:47:21,522 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 01:47:21,951 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:47:21,962 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 01:47:22,033 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:47:22,097 INFO L192 MainTranslator]: Completed translation [2019-09-10 01:47:22,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:22 WrapperNode [2019-09-10 01:47:22,098 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 01:47:22,099 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 01:47:22,099 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 01:47:22,099 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 01:47:22,112 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:22" (1/1) ... [2019-09-10 01:47:22,114 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:22" (1/1) ... [2019-09-10 01:47:22,130 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:22" (1/1) ... [2019-09-10 01:47:22,131 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:22" (1/1) ... [2019-09-10 01:47:22,148 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:22" (1/1) ... [2019-09-10 01:47:22,159 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:22" (1/1) ... [2019-09-10 01:47:22,162 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:22" (1/1) ... [2019-09-10 01:47:22,169 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 01:47:22,169 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 01:47:22,169 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 01:47:22,170 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 01:47:22,170 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:22" (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 01:47:22,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 01:47:22,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 01:47:22,233 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 01:47:22,233 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-09-10 01:47:22,233 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-09-10 01:47:22,234 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-09-10 01:47:22,234 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-09-10 01:47:22,234 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-09-10 01:47:22,234 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-09-10 01:47:22,234 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-09-10 01:47:22,235 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-09-10 01:47:22,235 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-09-10 01:47:22,235 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-09-10 01:47:22,235 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-09-10 01:47:22,235 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-09-10 01:47:22,235 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-09-10 01:47:22,236 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-09-10 01:47:22,236 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-09-10 01:47:22,236 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-09-10 01:47:22,236 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-09-10 01:47:22,236 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-09-10 01:47:22,236 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-09-10 01:47:22,237 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-09-10 01:47:22,237 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-09-10 01:47:22,237 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-09-10 01:47:22,237 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-09-10 01:47:22,237 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-09-10 01:47:22,237 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-09-10 01:47:22,238 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-09-10 01:47:22,238 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-09-10 01:47:22,238 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-09-10 01:47:22,238 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-09-10 01:47:22,238 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-09-10 01:47:22,238 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-09-10 01:47:22,239 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-09-10 01:47:22,239 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-09-10 01:47:22,239 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-09-10 01:47:22,239 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-09-10 01:47:22,239 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-09-10 01:47:22,239 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-09-10 01:47:22,240 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-09-10 01:47:22,240 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-09-10 01:47:22,240 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-09-10 01:47:22,240 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-09-10 01:47:22,240 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-09-10 01:47:22,240 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-09-10 01:47:22,240 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-09-10 01:47:22,241 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-09-10 01:47:22,241 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-09-10 01:47:22,241 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-09-10 01:47:22,241 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-09-10 01:47:22,241 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-09-10 01:47:22,241 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-09-10 01:47:22,241 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 01:47:22,242 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-10 01:47:22,242 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-09-10 01:47:22,242 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 01:47:22,242 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-09-10 01:47:22,242 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-09-10 01:47:22,242 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-09-10 01:47:22,242 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-09-10 01:47:22,243 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-09-10 01:47:22,243 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-09-10 01:47:22,243 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-09-10 01:47:22,243 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-09-10 01:47:22,243 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-09-10 01:47:22,243 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-10 01:47:22,244 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-09-10 01:47:22,244 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-09-10 01:47:22,244 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-09-10 01:47:22,244 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-09-10 01:47:22,244 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-09-10 01:47:22,244 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-09-10 01:47:22,245 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-09-10 01:47:22,245 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-09-10 01:47:22,245 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-09-10 01:47:22,245 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-09-10 01:47:22,245 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-09-10 01:47:22,245 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-09-10 01:47:22,246 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-09-10 01:47:22,246 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-09-10 01:47:22,246 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-09-10 01:47:22,246 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-09-10 01:47:22,246 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-09-10 01:47:22,246 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-09-10 01:47:22,246 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-09-10 01:47:22,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-09-10 01:47:22,247 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-09-10 01:47:22,247 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-09-10 01:47:22,247 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-09-10 01:47:22,247 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-09-10 01:47:22,247 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-09-10 01:47:22,248 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-09-10 01:47:22,249 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-09-10 01:47:22,250 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-09-10 01:47:22,250 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-09-10 01:47:22,250 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-09-10 01:47:22,250 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-09-10 01:47:22,250 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-09-10 01:47:22,250 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-09-10 01:47:22,250 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-09-10 01:47:22,251 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-09-10 01:47:22,251 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-09-10 01:47:22,251 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-09-10 01:47:22,251 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-09-10 01:47:22,251 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-09-10 01:47:22,251 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 01:47:22,251 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 01:47:22,252 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 01:47:22,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 01:47:22,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 01:47:22,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 01:47:22,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 01:47:22,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 01:47:22,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 01:47:22,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 01:47:22,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 01:47:22,942 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 01:47:22,942 INFO L283 CfgBuilder]: Removed 31 assume(true) statements. [2019-09-10 01:47:22,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:47:22 BoogieIcfgContainer [2019-09-10 01:47:22,944 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 01:47:22,945 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 01:47:22,945 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 01:47:22,948 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 01:47:22,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 01:47:21" (1/3) ... [2019-09-10 01:47:22,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eca3c09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:47:22, skipping insertion in model container [2019-09-10 01:47:22,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:22" (2/3) ... [2019-09-10 01:47:22,950 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eca3c09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:47:22, skipping insertion in model container [2019-09-10 01:47:22,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:47:22" (3/3) ... [2019-09-10 01:47:22,952 INFO L109 eAbstractionObserver]: Analyzing ICFG sll-queue-1.i [2019-09-10 01:47:22,962 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 01:47:22,970 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 14 error locations. [2019-09-10 01:47:22,987 INFO L252 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2019-09-10 01:47:23,016 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 01:47:23,016 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 01:47:23,016 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 01:47:23,016 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 01:47:23,017 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 01:47:23,018 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 01:47:23,021 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 01:47:23,021 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 01:47:23,045 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states. [2019-09-10 01:47:23,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-09-10 01:47:23,065 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:47:23,066 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:47:23,071 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:47:23,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:47:23,077 INFO L82 PathProgramCache]: Analyzing trace with hash 307953290, now seen corresponding path program 1 times [2019-09-10 01:47:23,079 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:47:23,128 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:23,128 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:47:23,128 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:23,128 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:47:23,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:47:23,212 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 01:47:23,215 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:47:23,215 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 01:47:23,218 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:47:23,226 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 01:47:23,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 01:47:23,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 01:47:23,242 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 2 states. [2019-09-10 01:47:23,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:47:23,264 INFO L93 Difference]: Finished difference Result 80 states and 92 transitions. [2019-09-10 01:47:23,265 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 01:47:23,266 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2019-09-10 01:47:23,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:47:23,277 INFO L225 Difference]: With dead ends: 80 [2019-09-10 01:47:23,277 INFO L226 Difference]: Without dead ends: 74 [2019-09-10 01:47:23,279 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 01:47:23,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2019-09-10 01:47:23,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2019-09-10 01:47:23,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2019-09-10 01:47:23,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 85 transitions. [2019-09-10 01:47:23,345 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 85 transitions. Word has length 9 [2019-09-10 01:47:23,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:47:23,345 INFO L475 AbstractCegarLoop]: Abstraction has 74 states and 85 transitions. [2019-09-10 01:47:23,345 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 01:47:23,346 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 85 transitions. [2019-09-10 01:47:23,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-09-10 01:47:23,346 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:47:23,347 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:47:23,347 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:47:23,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:47:23,349 INFO L82 PathProgramCache]: Analyzing trace with hash 954861691, now seen corresponding path program 1 times [2019-09-10 01:47:23,350 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:47:23,354 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:23,354 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:47:23,355 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:23,355 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:47:23,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:47:23,430 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 01:47:23,430 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:47:23,430 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 01:47:23,430 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:47:23,432 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 01:47:23,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 01:47:23,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 01:47:23,438 INFO L87 Difference]: Start difference. First operand 74 states and 85 transitions. Second operand 3 states. [2019-09-10 01:47:23,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:47:23,495 INFO L93 Difference]: Finished difference Result 64 states and 75 transitions. [2019-09-10 01:47:23,495 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 01:47:23,495 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-09-10 01:47:23,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:47:23,497 INFO L225 Difference]: With dead ends: 64 [2019-09-10 01:47:23,497 INFO L226 Difference]: Without dead ends: 64 [2019-09-10 01:47:23,498 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 01:47:23,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2019-09-10 01:47:23,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2019-09-10 01:47:23,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2019-09-10 01:47:23,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 75 transitions. [2019-09-10 01:47:23,505 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 75 transitions. Word has length 10 [2019-09-10 01:47:23,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:47:23,506 INFO L475 AbstractCegarLoop]: Abstraction has 64 states and 75 transitions. [2019-09-10 01:47:23,506 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 01:47:23,506 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 75 transitions. [2019-09-10 01:47:23,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-09-10 01:47:23,507 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:47:23,507 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:47:23,507 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:47:23,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:47:23,508 INFO L82 PathProgramCache]: Analyzing trace with hash -1500729684, now seen corresponding path program 1 times [2019-09-10 01:47:23,508 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:47:23,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:23,510 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:47:23,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:23,510 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:47:23,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:47:23,556 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 01:47:23,556 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:47:23,556 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 01:47:23,556 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:47:23,557 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 01:47:23,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 01:47:23,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 01:47:23,557 INFO L87 Difference]: Start difference. First operand 64 states and 75 transitions. Second operand 3 states. [2019-09-10 01:47:23,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:47:23,595 INFO L93 Difference]: Finished difference Result 62 states and 73 transitions. [2019-09-10 01:47:23,595 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 01:47:23,595 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-09-10 01:47:23,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:47:23,596 INFO L225 Difference]: With dead ends: 62 [2019-09-10 01:47:23,596 INFO L226 Difference]: Without dead ends: 62 [2019-09-10 01:47:23,597 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 01:47:23,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2019-09-10 01:47:23,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2019-09-10 01:47:23,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2019-09-10 01:47:23,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 73 transitions. [2019-09-10 01:47:23,603 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 73 transitions. Word has length 12 [2019-09-10 01:47:23,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:47:23,603 INFO L475 AbstractCegarLoop]: Abstraction has 62 states and 73 transitions. [2019-09-10 01:47:23,603 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 01:47:23,603 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 73 transitions. [2019-09-10 01:47:23,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-09-10 01:47:23,604 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:47:23,604 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:47:23,605 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:47:23,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:47:23,605 INFO L82 PathProgramCache]: Analyzing trace with hash 858835281, now seen corresponding path program 1 times [2019-09-10 01:47:23,606 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:47:23,607 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:23,607 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:47:23,607 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:23,608 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:47:23,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:47:23,636 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 01:47:23,637 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:47:23,637 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 01:47:23,637 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:47:23,638 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 01:47:23,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 01:47:23,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 01:47:23,638 INFO L87 Difference]: Start difference. First operand 62 states and 73 transitions. Second operand 3 states. [2019-09-10 01:47:23,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:47:23,700 INFO L93 Difference]: Finished difference Result 78 states and 92 transitions. [2019-09-10 01:47:23,701 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 01:47:23,701 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2019-09-10 01:47:23,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:47:23,702 INFO L225 Difference]: With dead ends: 78 [2019-09-10 01:47:23,703 INFO L226 Difference]: Without dead ends: 78 [2019-09-10 01:47:23,703 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 01:47:23,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2019-09-10 01:47:23,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 68. [2019-09-10 01:47:23,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2019-09-10 01:47:23,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 80 transitions. [2019-09-10 01:47:23,710 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 80 transitions. Word has length 14 [2019-09-10 01:47:23,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:47:23,710 INFO L475 AbstractCegarLoop]: Abstraction has 68 states and 80 transitions. [2019-09-10 01:47:23,710 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 01:47:23,710 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 80 transitions. [2019-09-10 01:47:23,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-09-10 01:47:23,711 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:47:23,711 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:47:23,712 INFO L418 AbstractCegarLoop]: === Iteration 5 === [mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:47:23,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:47:23,712 INFO L82 PathProgramCache]: Analyzing trace with hash -1410713368, now seen corresponding path program 1 times [2019-09-10 01:47:23,713 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:47:23,714 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:23,714 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:47:23,714 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:23,714 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:47:23,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:47:23,794 ERROR L253 erpolLogProxyWrapper]: Interpolant 7 not inductive: (Check returned sat) [2019-09-10 01:47:23,814 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: generated interpolants did not pass sanity check at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:969) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.managedscript.ManagedScript.getInterpolants(ManagedScript.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:285) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:168) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsTree(InterpolatingTraceCheckCraig.java:271) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:207) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructCraig(TraceCheckConstructor.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:183) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.getTraceCheck(BaseTaipanRefinementStrategy.java:215) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:453) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:371) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-09-10 01:47:23,824 INFO L168 Benchmark]: Toolchain (without parser) took 2381.03 ms. Allocated memory was 136.3 MB in the beginning and 233.3 MB in the end (delta: 97.0 MB). Free memory was 90.2 MB in the beginning and 167.3 MB in the end (delta: -77.1 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. [2019-09-10 01:47:23,825 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 136.3 MB. Free memory was 109.6 MB in the beginning and 109.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 01:47:23,827 INFO L168 Benchmark]: CACSL2BoogieTranslator took 654.61 ms. Allocated memory was 136.3 MB in the beginning and 201.9 MB in the end (delta: 65.5 MB). Free memory was 90.0 MB in the beginning and 165.7 MB in the end (delta: -75.7 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. [2019-09-10 01:47:23,828 INFO L168 Benchmark]: Boogie Preprocessor took 70.17 ms. Allocated memory is still 201.9 MB. Free memory was 165.7 MB in the beginning and 162.2 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. [2019-09-10 01:47:23,829 INFO L168 Benchmark]: RCFGBuilder took 774.73 ms. Allocated memory is still 201.9 MB. Free memory was 162.2 MB in the beginning and 106.5 MB in the end (delta: 55.7 MB). Peak memory consumption was 55.7 MB. Max. memory is 7.1 GB. [2019-09-10 01:47:23,830 INFO L168 Benchmark]: TraceAbstraction took 877.21 ms. Allocated memory was 201.9 MB in the beginning and 233.3 MB in the end (delta: 31.5 MB). Free memory was 106.5 MB in the beginning and 167.3 MB in the end (delta: -60.9 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-10 01:47:23,836 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 136.3 MB. Free memory was 109.6 MB in the beginning and 109.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 654.61 ms. Allocated memory was 136.3 MB in the beginning and 201.9 MB in the end (delta: 65.5 MB). Free memory was 90.0 MB in the beginning and 165.7 MB in the end (delta: -75.7 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 70.17 ms. Allocated memory is still 201.9 MB. Free memory was 165.7 MB in the beginning and 162.2 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 774.73 ms. Allocated memory is still 201.9 MB. Free memory was 162.2 MB in the beginning and 106.5 MB in the end (delta: 55.7 MB). Peak memory consumption was 55.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 877.21 ms. Allocated memory was 201.9 MB in the beginning and 233.3 MB in the end (delta: 31.5 MB). Free memory was 106.5 MB in the beginning and 167.3 MB in the end (delta: -60.9 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: generated interpolants did not pass sanity check de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: generated interpolants did not pass sanity check: de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:969) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...