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-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 01:47:28,464 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 01:47:28,466 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 01:47:28,477 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 01:47:28,478 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 01:47:28,479 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 01:47:28,480 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 01:47:28,492 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 01:47:28,495 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 01:47:28,496 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 01:47:28,499 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 01:47:28,500 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 01:47:28,501 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 01:47:28,504 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 01:47:28,506 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 01:47:28,509 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 01:47:28,510 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 01:47:28,511 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 01:47:28,514 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 01:47:28,519 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 01:47:28,523 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 01:47:28,526 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 01:47:28,527 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 01:47:28,528 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 01:47:28,531 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 01:47:28,532 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 01:47:28,532 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 01:47:28,534 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 01:47:28,536 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 01:47:28,537 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 01:47:28,537 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 01:47:28,539 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 01:47:28,540 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 01:47:28,541 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 01:47:28,543 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 01:47:28,543 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 01:47:28,544 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 01:47:28,544 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 01:47:28,544 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 01:47:28,545 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 01:47:28,545 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 01:47:28,547 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 01:47:28,569 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 01:47:28,569 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 01:47:28,570 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 01:47:28,570 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 01:47:28,571 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 01:47:28,571 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 01:47:28,571 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 01:47:28,571 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 01:47:28,571 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 01:47:28,572 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 01:47:28,574 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 01:47:28,574 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 01:47:28,574 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 01:47:28,575 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 01:47:28,575 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 01:47:28,575 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 01:47:28,575 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 01:47:28,576 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 01:47:28,576 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 01:47:28,576 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 01:47:28,576 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 01:47:28,576 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 01:47:28,577 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 01:47:28,577 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 01:47:28,577 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 01:47:28,577 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 01:47:28,578 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 01:47:28,578 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 01:47:28,578 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 01:47:28,578 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 01:47:28,607 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 01:47:28,621 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 01:47:28,624 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 01:47:28,625 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 01:47:28,625 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 01:47:28,626 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/sll-sorted-2.i [2019-09-10 01:47:28,700 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40feec59f/c1e7e98465434be7913f210795da31b4/FLAGd0a35b79d [2019-09-10 01:47:29,265 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 01:47:29,265 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-sorted-2.i [2019-09-10 01:47:29,281 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40feec59f/c1e7e98465434be7913f210795da31b4/FLAGd0a35b79d [2019-09-10 01:47:29,560 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40feec59f/c1e7e98465434be7913f210795da31b4 [2019-09-10 01:47:29,570 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 01:47:29,571 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 01:47:29,572 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 01:47:29,572 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 01:47:29,575 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 01:47:29,576 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:47:29" (1/1) ... [2019-09-10 01:47:29,579 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b3e2de3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:29, skipping insertion in model container [2019-09-10 01:47:29,579 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:47:29" (1/1) ... [2019-09-10 01:47:29,586 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 01:47:29,644 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 01:47:30,064 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:47:30,075 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 01:47:30,120 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:47:30,173 INFO L192 MainTranslator]: Completed translation [2019-09-10 01:47:30,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:30 WrapperNode [2019-09-10 01:47:30,174 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 01:47:30,174 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 01:47:30,174 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 01:47:30,175 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 01:47:30,189 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:30" (1/1) ... [2019-09-10 01:47:30,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:30" (1/1) ... [2019-09-10 01:47:30,206 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:30" (1/1) ... [2019-09-10 01:47:30,207 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:30" (1/1) ... [2019-09-10 01:47:30,226 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:30" (1/1) ... [2019-09-10 01:47:30,235 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:30" (1/1) ... [2019-09-10 01:47:30,239 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:30" (1/1) ... [2019-09-10 01:47:30,245 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 01:47:30,246 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 01:47:30,246 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 01:47:30,246 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 01:47:30,247 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:30" (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 01:47:30,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 01:47:30,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 01:47:30,313 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 01:47:30,313 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-09-10 01:47:30,313 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-09-10 01:47:30,313 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-09-10 01:47:30,313 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-09-10 01:47:30,314 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-09-10 01:47:30,314 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-09-10 01:47:30,314 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-09-10 01:47:30,314 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-09-10 01:47:30,314 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-09-10 01:47:30,315 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-09-10 01:47:30,315 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-09-10 01:47:30,315 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-09-10 01:47:30,315 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-09-10 01:47:30,315 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-09-10 01:47:30,315 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-09-10 01:47:30,316 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-09-10 01:47:30,316 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-09-10 01:47:30,316 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-09-10 01:47:30,316 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-09-10 01:47:30,316 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-09-10 01:47:30,316 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-09-10 01:47:30,317 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-09-10 01:47:30,317 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-09-10 01:47:30,317 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-09-10 01:47:30,317 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-09-10 01:47:30,317 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-09-10 01:47:30,317 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-09-10 01:47:30,318 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-09-10 01:47:30,318 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-09-10 01:47:30,318 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-09-10 01:47:30,318 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-09-10 01:47:30,318 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-09-10 01:47:30,318 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-09-10 01:47:30,318 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-09-10 01:47:30,319 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-09-10 01:47:30,319 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-09-10 01:47:30,319 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-09-10 01:47:30,319 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-09-10 01:47:30,319 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-09-10 01:47:30,319 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-09-10 01:47:30,320 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-09-10 01:47:30,320 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-09-10 01:47:30,320 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-09-10 01:47:30,320 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-09-10 01:47:30,320 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-09-10 01:47:30,320 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-09-10 01:47:30,320 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-09-10 01:47:30,321 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-09-10 01:47:30,321 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-09-10 01:47:30,321 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-09-10 01:47:30,321 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 01:47:30,321 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-10 01:47:30,321 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-09-10 01:47:30,321 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 01:47:30,322 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-09-10 01:47:30,322 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-09-10 01:47:30,322 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-09-10 01:47:30,322 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-09-10 01:47:30,322 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-09-10 01:47:30,322 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-09-10 01:47:30,323 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-09-10 01:47:30,323 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-09-10 01:47:30,323 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-09-10 01:47:30,323 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-10 01:47:30,323 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-09-10 01:47:30,323 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-09-10 01:47:30,324 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-09-10 01:47:30,324 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-09-10 01:47:30,324 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-09-10 01:47:30,324 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-09-10 01:47:30,324 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-09-10 01:47:30,324 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-09-10 01:47:30,325 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-09-10 01:47:30,325 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-09-10 01:47:30,325 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-09-10 01:47:30,325 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-09-10 01:47:30,325 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-09-10 01:47:30,325 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-09-10 01:47:30,325 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-09-10 01:47:30,326 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-09-10 01:47:30,326 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-09-10 01:47:30,326 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-09-10 01:47:30,326 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-09-10 01:47:30,326 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-09-10 01:47:30,326 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-09-10 01:47:30,327 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-09-10 01:47:30,327 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-09-10 01:47:30,327 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-09-10 01:47:30,327 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-09-10 01:47:30,327 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-09-10 01:47:30,327 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-09-10 01:47:30,328 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-09-10 01:47:30,328 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-09-10 01:47:30,328 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-09-10 01:47:30,328 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-09-10 01:47:30,328 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-09-10 01:47:30,328 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-09-10 01:47:30,328 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-09-10 01:47:30,329 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-09-10 01:47:30,329 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-09-10 01:47:30,329 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-09-10 01:47:30,329 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-09-10 01:47:30,329 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-09-10 01:47:30,329 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 01:47:30,329 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 01:47:30,330 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 01:47:30,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 01:47:30,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 01:47:30,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 01:47:30,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 01:47:30,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 01:47:30,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 01:47:30,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 01:47:30,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 01:47:30,998 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 01:47:30,998 INFO L283 CfgBuilder]: Removed 20 assume(true) statements. [2019-09-10 01:47:31,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:47:30 BoogieIcfgContainer [2019-09-10 01:47:31,000 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 01:47:31,001 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 01:47:31,001 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 01:47:31,004 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 01:47:31,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 01:47:29" (1/3) ... [2019-09-10 01:47:31,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49568963 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:47:31, skipping insertion in model container [2019-09-10 01:47:31,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:30" (2/3) ... [2019-09-10 01:47:31,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49568963 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:47:31, skipping insertion in model container [2019-09-10 01:47:31,007 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 01:47:31,008 INFO L109 eAbstractionObserver]: Analyzing ICFG sll-sorted-2.i [2019-09-10 01:47:31,019 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 01:47:31,027 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2019-09-10 01:47:31,046 INFO L252 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-09-10 01:47:31,083 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 01:47:31,084 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 01:47:31,084 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 01:47:31,084 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 01:47:31,085 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 01:47:31,085 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 01:47:31,089 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 01:47:31,089 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 01:47:31,112 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states. [2019-09-10 01:47:31,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-09-10 01:47:31,127 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:47:31,129 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:47:31,131 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:47:31,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:47:31,137 INFO L82 PathProgramCache]: Analyzing trace with hash 1220089873, now seen corresponding path program 1 times [2019-09-10 01:47:31,141 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:47:31,187 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:31,188 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:47:31,188 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:31,188 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:47:31,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:47:31,298 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 01:47:31,300 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:47:31,300 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 01:47:31,301 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:47:31,306 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 01:47:31,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 01:47:31,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 01:47:31,324 INFO L87 Difference]: Start difference. First operand 67 states. Second operand 2 states. [2019-09-10 01:47:31,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:47:31,349 INFO L93 Difference]: Finished difference Result 61 states and 72 transitions. [2019-09-10 01:47:31,349 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 01:47:31,350 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-09-10 01:47:31,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:47:31,362 INFO L225 Difference]: With dead ends: 61 [2019-09-10 01:47:31,363 INFO L226 Difference]: Without dead ends: 54 [2019-09-10 01:47:31,366 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 01:47:31,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2019-09-10 01:47:31,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2019-09-10 01:47:31,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2019-09-10 01:47:31,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 64 transitions. [2019-09-10 01:47:31,402 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 64 transitions. Word has length 10 [2019-09-10 01:47:31,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:47:31,402 INFO L475 AbstractCegarLoop]: Abstraction has 54 states and 64 transitions. [2019-09-10 01:47:31,402 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 01:47:31,402 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2019-09-10 01:47:31,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-09-10 01:47:31,403 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:47:31,403 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:47:31,404 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:47:31,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:47:31,404 INFO L82 PathProgramCache]: Analyzing trace with hash -850008500, now seen corresponding path program 1 times [2019-09-10 01:47:31,404 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:47:31,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:31,407 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:47:31,407 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:31,407 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:47:31,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:47:31,456 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 01:47:31,456 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:47:31,456 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 01:47:31,457 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:47:31,458 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 01:47:31,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 01:47:31,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 01:47:31,459 INFO L87 Difference]: Start difference. First operand 54 states and 64 transitions. Second operand 3 states. [2019-09-10 01:47:31,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:47:31,530 INFO L93 Difference]: Finished difference Result 59 states and 70 transitions. [2019-09-10 01:47:31,530 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 01:47:31,531 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-09-10 01:47:31,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:47:31,532 INFO L225 Difference]: With dead ends: 59 [2019-09-10 01:47:31,534 INFO L226 Difference]: Without dead ends: 59 [2019-09-10 01:47:31,535 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 01:47:31,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2019-09-10 01:47:31,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 58. [2019-09-10 01:47:31,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2019-09-10 01:47:31,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 69 transitions. [2019-09-10 01:47:31,553 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 69 transitions. Word has length 11 [2019-09-10 01:47:31,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:47:31,553 INFO L475 AbstractCegarLoop]: Abstraction has 58 states and 69 transitions. [2019-09-10 01:47:31,554 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 01:47:31,554 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 69 transitions. [2019-09-10 01:47:31,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-09-10 01:47:31,555 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:47:31,555 INFO L399 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:47:31,556 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:47:31,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:47:31,556 INFO L82 PathProgramCache]: Analyzing trace with hash -797008223, now seen corresponding path program 1 times [2019-09-10 01:47:31,556 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:47:31,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:31,565 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:47:31,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:31,597 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:47:31,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:47:31,720 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 01:47:31,720 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:47:31,721 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-10 01:47:31,721 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:47:31,721 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 01:47:31,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 01:47:31,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 01:47:31,722 INFO L87 Difference]: Start difference. First operand 58 states and 69 transitions. Second operand 4 states. [2019-09-10 01:47:31,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:47:31,869 INFO L93 Difference]: Finished difference Result 90 states and 108 transitions. [2019-09-10 01:47:31,870 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-10 01:47:31,870 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2019-09-10 01:47:31,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:47:31,871 INFO L225 Difference]: With dead ends: 90 [2019-09-10 01:47:31,872 INFO L226 Difference]: Without dead ends: 90 [2019-09-10 01:47:31,872 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 01:47:31,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2019-09-10 01:47:31,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 56. [2019-09-10 01:47:31,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2019-09-10 01:47:31,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 67 transitions. [2019-09-10 01:47:31,879 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 67 transitions. Word has length 15 [2019-09-10 01:47:31,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:47:31,880 INFO L475 AbstractCegarLoop]: Abstraction has 56 states and 67 transitions. [2019-09-10 01:47:31,880 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 01:47:31,880 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 67 transitions. [2019-09-10 01:47:31,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-09-10 01:47:31,881 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:47:31,881 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] [2019-09-10 01:47:31,881 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:47:31,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:47:31,882 INFO L82 PathProgramCache]: Analyzing trace with hash -184366883, now seen corresponding path program 1 times [2019-09-10 01:47:31,882 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:47:31,884 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:31,884 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:47:31,884 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:31,884 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:47:31,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:47:32,194 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 01:47:32,195 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 01:47:32,195 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 01:47:32,196 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 22 with the following transitions: [2019-09-10 01:47:32,197 INFO L207 CegarAbsIntRunner]: [0], [1], [2], [7], [10], [12], [15], [21], [28], [38], [52], [55], [63], [67], [70], [71], [251], [275], [276], [277] [2019-09-10 01:47:32,233 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 01:47:32,236 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 01:47:32,329 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 01:47:32,331 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 36 variables. [2019-09-10 01:47:32,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:47:32,335 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 01:47:32,372 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-09-10 01:47:32,372 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 01:47:32,374 INFO L420 sIntCurrentIteration]: We unified 20 AI predicates to 20 [2019-09-10 01:47:32,374 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 01:47:32,375 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 01:47:32,375 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [8] total 8 [2019-09-10 01:47:32,375 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:47:32,376 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 01:47:32,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 01:47:32,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 01:47:32,376 INFO L87 Difference]: Start difference. First operand 56 states and 67 transitions. Second operand 2 states. [2019-09-10 01:47:32,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:47:32,377 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2019-09-10 01:47:32,377 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 01:47:32,377 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2019-09-10 01:47:32,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:47:32,378 INFO L225 Difference]: With dead ends: 6 [2019-09-10 01:47:32,378 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 01:47:32,378 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 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 01:47:32,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 01:47:32,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 01:47:32,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 01:47:32,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 01:47:32,379 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2019-09-10 01:47:32,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:47:32,380 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 01:47:32,380 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 01:47:32,380 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 01:47:32,380 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 01:47:32,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 01:47:32 BoogieIcfgContainer [2019-09-10 01:47:32,385 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 01:47:32,387 INFO L168 Benchmark]: Toolchain (without parser) took 2815.46 ms. Allocated memory was 133.7 MB in the beginning and 225.4 MB in the end (delta: 91.8 MB). Free memory was 88.1 MB in the beginning and 136.4 MB in the end (delta: -48.4 MB). Peak memory consumption was 43.4 MB. Max. memory is 7.1 GB. [2019-09-10 01:47:32,388 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 133.7 MB. Free memory is still 107.9 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-10 01:47:32,389 INFO L168 Benchmark]: CACSL2BoogieTranslator took 601.92 ms. Allocated memory was 133.7 MB in the beginning and 199.2 MB in the end (delta: 65.5 MB). Free memory was 87.7 MB in the beginning and 162.9 MB in the end (delta: -75.2 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. [2019-09-10 01:47:32,390 INFO L168 Benchmark]: Boogie Preprocessor took 71.15 ms. Allocated memory is still 199.2 MB. Free memory was 162.9 MB in the beginning and 159.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2019-09-10 01:47:32,391 INFO L168 Benchmark]: RCFGBuilder took 754.47 ms. Allocated memory is still 199.2 MB. Free memory was 159.9 MB in the beginning and 107.7 MB in the end (delta: 52.2 MB). Peak memory consumption was 52.2 MB. Max. memory is 7.1 GB. [2019-09-10 01:47:32,392 INFO L168 Benchmark]: TraceAbstraction took 1383.86 ms. Allocated memory was 199.2 MB in the beginning and 225.4 MB in the end (delta: 26.2 MB). Free memory was 107.7 MB in the beginning and 138.0 MB in the end (delta: -30.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-10 01:47:32,395 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 133.7 MB. Free memory is still 107.9 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 601.92 ms. Allocated memory was 133.7 MB in the beginning and 199.2 MB in the end (delta: 65.5 MB). Free memory was 87.7 MB in the beginning and 162.9 MB in the end (delta: -75.2 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 71.15 ms. Allocated memory is still 199.2 MB. Free memory was 162.9 MB in the beginning and 159.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 754.47 ms. Allocated memory is still 199.2 MB. Free memory was 159.9 MB in the beginning and 107.7 MB in the end (delta: 52.2 MB). Peak memory consumption was 52.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1383.86 ms. Allocated memory was 199.2 MB in the beginning and 225.4 MB in the end (delta: 26.2 MB). Free memory was 107.7 MB in the beginning and 138.0 MB in the end (delta: -30.3 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1013]: 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: 1018]: 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: 1025]: 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: 1051]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 67 locations, 7 error locations. SAFE Result, 1.3s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 178 SDtfs, 161 SDslu, 58 SDs, 0 SdLazy, 53 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=67occurred 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, 0.9125 AbsIntWeakeningRatio, 1.45 AbsIntAvgWeakeningVarsNumRemoved, 0.3 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 35 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 53 ConstructedInterpolants, 0 QuantifiedInterpolants, 5813 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...