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/list-properties/splice-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:29:25,501 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:29:25,503 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:29:25,517 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:29:25,517 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:29:25,519 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:29:25,520 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:29:25,523 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:29:25,525 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:29:25,526 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:29:25,527 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:29:25,529 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:29:25,529 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:29:25,531 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:29:25,532 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:29:25,534 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:29:25,535 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:29:25,536 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:29:25,539 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:29:25,541 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:29:25,544 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:29:25,545 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:29:25,547 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:29:25,548 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:29:25,551 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:29:25,552 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:29:25,552 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:29:25,554 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:29:25,554 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:29:25,556 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:29:25,556 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:29:25,557 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:29:25,558 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:29:25,559 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:29:25,561 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:29:25,561 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:29:25,562 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:29:25,562 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:29:25,562 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:29:25,564 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:29:25,565 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:29:25,566 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 [2019-10-03 02:29:25,583 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:29:25,584 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:29:25,584 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:29:25,584 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:29:25,585 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:29:25,585 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:29:25,586 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:29:25,586 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:29:25,586 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:29:25,586 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:29:25,587 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:29:25,587 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:29:25,588 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:29:25,588 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:29:25,588 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:29:25,588 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:29:25,588 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:29:25,589 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:29:25,589 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:29:25,589 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:29:25,589 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:29:25,589 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:29:25,590 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:29:25,590 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:29:25,590 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:29:25,590 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:29:25,591 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:29:25,591 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:29:25,591 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:29:25,591 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:29:25,628 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:29:25,653 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:29:25,657 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:29:25,658 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:29:25,659 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:29:25,660 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-properties/splice-2.i [2019-10-03 02:29:25,756 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25d5e1fc6/ffb60554ad5047e4af5ba69b4073cf0d/FLAG870167d25 [2019-10-03 02:29:26,495 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:29:26,496 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-properties/splice-2.i [2019-10-03 02:29:26,523 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25d5e1fc6/ffb60554ad5047e4af5ba69b4073cf0d/FLAG870167d25 [2019-10-03 02:29:26,666 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25d5e1fc6/ffb60554ad5047e4af5ba69b4073cf0d [2019-10-03 02:29:26,677 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:29:26,679 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:29:26,681 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:29:26,681 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:29:26,685 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:29:26,687 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:29:26" (1/1) ... [2019-10-03 02:29:26,691 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10977f2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:29:26, skipping insertion in model container [2019-10-03 02:29:26,691 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:29:26" (1/1) ... [2019-10-03 02:29:26,701 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:29:26,771 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:29:27,244 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:29:27,265 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:29:27,341 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:29:27,412 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:29:27,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:29:27 WrapperNode [2019-10-03 02:29:27,412 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:29:27,414 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:29:27,414 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:29:27,414 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:29:27,428 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:29:27" (1/1) ... [2019-10-03 02:29:27,428 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:29:27" (1/1) ... [2019-10-03 02:29:27,447 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:29:27" (1/1) ... [2019-10-03 02:29:27,448 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:29:27" (1/1) ... [2019-10-03 02:29:27,482 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:29:27" (1/1) ... [2019-10-03 02:29:27,491 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:29:27" (1/1) ... [2019-10-03 02:29:27,503 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:29:27" (1/1) ... [2019-10-03 02:29:27,516 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:29:27,517 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:29:27,517 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:29:27,517 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:29:27,518 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:29:27" (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 [2019-10-03 02:29:27,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:29:27,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:29:27,592 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-03 02:29:27,592 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-03 02:29:27,592 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-10-03 02:29:27,592 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-10-03 02:29:27,592 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-10-03 02:29:27,593 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-10-03 02:29:27,593 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:29:27,593 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:29:27,593 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:29:27,593 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-03 02:29:27,594 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-03 02:29:27,594 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-03 02:29:27,594 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-03 02:29:27,594 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-03 02:29:27,595 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-03 02:29:27,595 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-03 02:29:27,595 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-03 02:29:27,595 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-03 02:29:27,595 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-03 02:29:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-03 02:29:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-03 02:29:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-03 02:29:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-03 02:29:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-03 02:29:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-03 02:29:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-03 02:29:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-03 02:29:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-10-03 02:29:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-10-03 02:29:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-10-03 02:29:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-03 02:29:27,600 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-03 02:29:27,600 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-03 02:29:27,600 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-03 02:29:27,600 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-03 02:29:27,600 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-03 02:29:27,600 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-03 02:29:27,601 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-03 02:29:27,601 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-03 02:29:27,601 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-03 02:29:27,601 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-03 02:29:27,601 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-03 02:29:27,601 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-03 02:29:27,602 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-03 02:29:27,602 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-03 02:29:27,602 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-03 02:29:27,602 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-03 02:29:27,602 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-03 02:29:27,602 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-03 02:29:27,603 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-03 02:29:27,603 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-03 02:29:27,603 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-03 02:29:27,603 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-03 02:29:27,603 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-03 02:29:27,603 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-03 02:29:27,604 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-03 02:29:27,604 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-03 02:29:27,604 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-03 02:29:27,604 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-03 02:29:27,604 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-03 02:29:27,604 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-03 02:29:27,604 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-03 02:29:27,605 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-03 02:29:27,605 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-03 02:29:27,605 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:29:27,605 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-03 02:29:27,605 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-03 02:29:27,606 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:29:27,606 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-03 02:29:27,606 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-03 02:29:27,606 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-03 02:29:27,606 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-03 02:29:27,606 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-03 02:29:27,607 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-03 02:29:27,607 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-03 02:29:27,607 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-03 02:29:27,607 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-03 02:29:27,607 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-03 02:29:27,607 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-03 02:29:27,608 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-03 02:29:27,608 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-03 02:29:27,608 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-03 02:29:27,608 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-03 02:29:27,608 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-03 02:29:27,608 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-03 02:29:27,608 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-03 02:29:27,609 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-03 02:29:27,609 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-03 02:29:27,609 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-03 02:29:27,609 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-03 02:29:27,609 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-03 02:29:27,609 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-03 02:29:27,610 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-03 02:29:27,610 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-03 02:29:27,610 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-03 02:29:27,610 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-03 02:29:27,610 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-03 02:29:27,610 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-03 02:29:27,611 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-03 02:29:27,611 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-03 02:29:27,611 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-03 02:29:27,611 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-03 02:29:27,611 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-03 02:29:27,611 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-03 02:29:27,612 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-03 02:29:27,612 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-03 02:29:27,612 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-03 02:29:27,612 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-03 02:29:27,612 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-03 02:29:27,612 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-03 02:29:27,613 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-03 02:29:27,613 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-03 02:29:27,613 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-03 02:29:27,613 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-03 02:29:27,613 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-03 02:29:27,613 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-03 02:29:27,614 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-10-03 02:29:27,614 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:29:27,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:29:27,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:29:27,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:29:27,614 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:29:27,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:29:27,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:29:27,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:29:27,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:29:28,067 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-10-03 02:29:28,301 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:29:28,302 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-03 02:29:28,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:29:28 BoogieIcfgContainer [2019-10-03 02:29:28,304 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:29:28,305 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:29:28,305 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:29:28,309 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:29:28,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:29:26" (1/3) ... [2019-10-03 02:29:28,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53c6f055 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:29:28, skipping insertion in model container [2019-10-03 02:29:28,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:29:27" (2/3) ... [2019-10-03 02:29:28,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53c6f055 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:29:28, skipping insertion in model container [2019-10-03 02:29:28,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:29:28" (3/3) ... [2019-10-03 02:29:28,313 INFO L109 eAbstractionObserver]: Analyzing ICFG splice-2.i [2019-10-03 02:29:28,322 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:29:28,330 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:29:28,350 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:29:28,377 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:29:28,378 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:29:28,378 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:29:28,378 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:29:28,378 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:29:28,378 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:29:28,378 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:29:28,379 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:29:28,392 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2019-10-03 02:29:28,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-03 02:29:28,405 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:29:28,407 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:29:28,409 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:29:28,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:29:28,417 INFO L82 PathProgramCache]: Analyzing trace with hash 661731879, now seen corresponding path program 1 times [2019-10-03 02:29:28,420 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:29:28,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:29:28,502 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:29:28,502 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:29:28,502 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:29:28,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:29:28,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:29:28,610 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:29:28,611 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-03 02:29:28,611 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:29:28,619 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:29:28,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:29:28,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:29:28,644 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states. [2019-10-03 02:29:28,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:29:28,674 INFO L93 Difference]: Finished difference Result 36 states and 45 transitions. [2019-10-03 02:29:28,675 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:29:28,676 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-10-03 02:29:28,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:29:28,689 INFO L225 Difference]: With dead ends: 36 [2019-10-03 02:29:28,689 INFO L226 Difference]: Without dead ends: 27 [2019-10-03 02:29:28,692 INFO L640 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 [2019-10-03 02:29:28,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-10-03 02:29:28,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-10-03 02:29:28,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-10-03 02:29:28,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 33 transitions. [2019-10-03 02:29:28,749 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 33 transitions. Word has length 16 [2019-10-03 02:29:28,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:29:28,750 INFO L475 AbstractCegarLoop]: Abstraction has 27 states and 33 transitions. [2019-10-03 02:29:28,750 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:29:28,751 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 33 transitions. [2019-10-03 02:29:28,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-03 02:29:28,752 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:29:28,752 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:29:28,753 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:29:28,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:29:28,753 INFO L82 PathProgramCache]: Analyzing trace with hash 1973627133, now seen corresponding path program 1 times [2019-10-03 02:29:28,753 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:29:28,759 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:29:28,760 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:29:28,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:29:28,760 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:29:28,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:29:28,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:29:28,920 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:29:28,920 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-03 02:29:28,920 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:29:28,925 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-03 02:29:28,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-03 02:29:28,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-03 02:29:28,927 INFO L87 Difference]: Start difference. First operand 27 states and 33 transitions. Second operand 4 states. [2019-10-03 02:29:29,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:29:29,062 INFO L93 Difference]: Finished difference Result 37 states and 45 transitions. [2019-10-03 02:29:29,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-03 02:29:29,064 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2019-10-03 02:29:29,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:29:29,065 INFO L225 Difference]: With dead ends: 37 [2019-10-03 02:29:29,065 INFO L226 Difference]: Without dead ends: 37 [2019-10-03 02:29:29,066 INFO L640 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 [2019-10-03 02:29:29,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-10-03 02:29:29,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 32. [2019-10-03 02:29:29,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-10-03 02:29:29,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 40 transitions. [2019-10-03 02:29:29,083 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 40 transitions. Word has length 18 [2019-10-03 02:29:29,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:29:29,083 INFO L475 AbstractCegarLoop]: Abstraction has 32 states and 40 transitions. [2019-10-03 02:29:29,083 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-03 02:29:29,084 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2019-10-03 02:29:29,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-03 02:29:29,086 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:29:29,086 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:29:29,086 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:29:29,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:29:29,090 INFO L82 PathProgramCache]: Analyzing trace with hash -1721544590, now seen corresponding path program 1 times [2019-10-03 02:29:29,090 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:29:29,101 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:29:29,102 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:29:29,102 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:29:29,102 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:29:29,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:29:29,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:29:29,263 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:29:29,264 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-03 02:29:29,264 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:29:29,264 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-03 02:29:29,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-03 02:29:29,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-03 02:29:29,265 INFO L87 Difference]: Start difference. First operand 32 states and 40 transitions. Second operand 4 states. [2019-10-03 02:29:29,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:29:29,349 INFO L93 Difference]: Finished difference Result 47 states and 59 transitions. [2019-10-03 02:29:29,351 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-03 02:29:29,351 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2019-10-03 02:29:29,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:29:29,355 INFO L225 Difference]: With dead ends: 47 [2019-10-03 02:29:29,355 INFO L226 Difference]: Without dead ends: 43 [2019-10-03 02:29:29,356 INFO L640 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 [2019-10-03 02:29:29,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-10-03 02:29:29,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 41. [2019-10-03 02:29:29,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-10-03 02:29:29,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 53 transitions. [2019-10-03 02:29:29,363 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 53 transitions. Word has length 20 [2019-10-03 02:29:29,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:29:29,363 INFO L475 AbstractCegarLoop]: Abstraction has 41 states and 53 transitions. [2019-10-03 02:29:29,364 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-03 02:29:29,364 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 53 transitions. [2019-10-03 02:29:29,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-10-03 02:29:29,365 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:29:29,365 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:29:29,365 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:29:29,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:29:29,366 INFO L82 PathProgramCache]: Analyzing trace with hash -918584693, now seen corresponding path program 1 times [2019-10-03 02:29:29,366 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:29:29,370 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:29:29,371 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:29:29,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:29:29,371 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:29:29,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:29:29,480 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:29:29,480 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:29:29,480 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-03 02:29:29,481 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:29:29,481 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-03 02:29:29,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-03 02:29:29,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:29:29,482 INFO L87 Difference]: Start difference. First operand 41 states and 53 transitions. Second operand 6 states. [2019-10-03 02:29:29,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:29:29,670 INFO L93 Difference]: Finished difference Result 51 states and 64 transitions. [2019-10-03 02:29:29,671 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-03 02:29:29,671 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2019-10-03 02:29:29,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:29:29,672 INFO L225 Difference]: With dead ends: 51 [2019-10-03 02:29:29,672 INFO L226 Difference]: Without dead ends: 47 [2019-10-03 02:29:29,673 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:29:29,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-10-03 02:29:29,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 43. [2019-10-03 02:29:29,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-10-03 02:29:29,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 55 transitions. [2019-10-03 02:29:29,681 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 55 transitions. Word has length 21 [2019-10-03 02:29:29,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:29:29,681 INFO L475 AbstractCegarLoop]: Abstraction has 43 states and 55 transitions. [2019-10-03 02:29:29,681 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-03 02:29:29,681 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 55 transitions. [2019-10-03 02:29:29,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-03 02:29:29,683 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:29:29,683 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:29:29,683 INFO L418 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:29:29,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:29:29,684 INFO L82 PathProgramCache]: Analyzing trace with hash -743556192, now seen corresponding path program 1 times [2019-10-03 02:29:29,684 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:29:29,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:29:29,689 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:29:29,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:29:29,689 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:29:29,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:29:30,075 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:29:30,076 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:29:30,076 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 02:29:30,077 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 28 with the following transitions: [2019-10-03 02:29:30,080 INFO L207 CegarAbsIntRunner]: [11], [12], [13], [19], [21], [26], [29], [31], [34], [38], [44], [46], [50], [54], [59], [62], [64], [67], [74], [83], [86], [111], [125], [126], [127] [2019-10-03 02:29:30,133 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-03 02:29:30,133 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 02:29:30,228 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-03 02:29:30,231 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 20 root evaluator evaluations with a maximum evaluation depth of 0. Performed 20 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 43 variables. [2019-10-03 02:29:30,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:29:30,238 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-03 02:29:30,280 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-10-03 02:29:30,281 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-03 02:29:30,283 INFO L420 sIntCurrentIteration]: We unified 26 AI predicates to 26 [2019-10-03 02:29:30,283 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-03 02:29:30,284 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-03 02:29:30,284 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [13] total 13 [2019-10-03 02:29:30,284 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:29:30,285 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:29:30,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:29:30,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:29:30,286 INFO L87 Difference]: Start difference. First operand 43 states and 55 transitions. Second operand 2 states. [2019-10-03 02:29:30,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:29:30,286 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2019-10-03 02:29:30,287 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:29:30,287 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 27 [2019-10-03 02:29:30,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:29:30,287 INFO L225 Difference]: With dead ends: 6 [2019-10-03 02:29:30,287 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:29:30,288 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:29:30,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:29:30,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:29:30,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:29:30,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:29:30,289 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2019-10-03 02:29:30,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:29:30,289 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:29:30,289 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:29:30,289 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:29:30,289 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:29:30,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:29:30 BoogieIcfgContainer [2019-10-03 02:29:30,295 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:29:30,298 INFO L168 Benchmark]: Toolchain (without parser) took 3617.94 ms. Allocated memory was 140.5 MB in the beginning and 228.1 MB in the end (delta: 87.6 MB). Free memory was 87.0 MB in the beginning and 118.8 MB in the end (delta: -31.8 MB). Peak memory consumption was 55.7 MB. Max. memory is 7.1 GB. [2019-10-03 02:29:30,299 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 140.5 MB. Free memory was 106.5 MB in the beginning and 106.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-03 02:29:30,300 INFO L168 Benchmark]: CACSL2BoogieTranslator took 732.48 ms. Allocated memory was 140.5 MB in the beginning and 201.9 MB in the end (delta: 61.3 MB). Free memory was 86.8 MB in the beginning and 166.5 MB in the end (delta: -79.8 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2019-10-03 02:29:30,301 INFO L168 Benchmark]: Boogie Preprocessor took 102.30 ms. Allocated memory is still 201.9 MB. Free memory was 166.5 MB in the beginning and 163.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2019-10-03 02:29:30,302 INFO L168 Benchmark]: RCFGBuilder took 787.55 ms. Allocated memory is still 201.9 MB. Free memory was 163.5 MB in the beginning and 117.6 MB in the end (delta: 45.9 MB). Peak memory consumption was 45.9 MB. Max. memory is 7.1 GB. [2019-10-03 02:29:30,304 INFO L168 Benchmark]: TraceAbstraction took 1990.17 ms. Allocated memory was 201.9 MB in the beginning and 228.1 MB in the end (delta: 26.2 MB). Free memory was 117.6 MB in the beginning and 118.8 MB in the end (delta: -1.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 7.1 GB. [2019-10-03 02:29:30,308 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 140.5 MB. Free memory was 106.5 MB in the beginning and 106.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 732.48 ms. Allocated memory was 140.5 MB in the beginning and 201.9 MB in the end (delta: 61.3 MB). Free memory was 86.8 MB in the beginning and 166.5 MB in the end (delta: -79.8 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 102.30 ms. Allocated memory is still 201.9 MB. Free memory was 166.5 MB in the beginning and 163.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 787.55 ms. Allocated memory is still 201.9 MB. Free memory was 163.5 MB in the beginning and 117.6 MB in the end (delta: 45.9 MB). Peak memory consumption was 45.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1990.17 ms. Allocated memory was 201.9 MB in the beginning and 228.1 MB in the end (delta: 26.2 MB). Free memory was 117.6 MB in the beginning and 118.8 MB in the end (delta: -1.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 573]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 52 locations, 1 error locations. SAFE Result, 1.9s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 137 SDtfs, 26 SDslu, 168 SDs, 0 SdLazy, 101 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=4, 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, 0.9519230769230769 AbsIntWeakeningRatio, 1.6153846153846154 AbsIntAvgWeakeningVarsNumRemoved, 0.23076923076923078 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 11 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 102 NumberOfCodeBlocks, 102 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 97 ConstructedInterpolants, 0 QuantifiedInterpolants, 9819 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 2/6 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...