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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/list-properties/alternating_list-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:03:26,411 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:03:26,413 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:03:26,425 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:03:26,425 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:03:26,426 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:03:26,428 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:03:26,429 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:03:26,431 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:03:26,432 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:03:26,433 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:03:26,434 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:03:26,434 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:03:26,435 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:03:26,436 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:03:26,437 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:03:26,438 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:03:26,439 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:03:26,441 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:03:26,443 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:03:26,445 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:03:26,446 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:03:26,447 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:03:26,448 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:03:26,450 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:03:26,450 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:03:26,450 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:03:26,451 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:03:26,452 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:03:26,453 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:03:26,453 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:03:26,454 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:03:26,454 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:03:26,455 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:03:26,456 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:03:26,456 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:03:26,457 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:03:26,457 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:03:26,457 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:03:26,458 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:03:26,459 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:03:26,460 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:03:26,481 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:03:26,481 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:03:26,482 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:03:26,482 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:03:26,482 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:03:26,483 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:03:26,483 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:03:26,483 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:03:26,483 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:03:26,483 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:03:26,484 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:03:26,484 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:03:26,484 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:03:26,484 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:03:26,484 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:03:26,485 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:03:26,485 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:03:26,485 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:03:26,485 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:03:26,485 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:03:26,486 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:03:26,486 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:03:26,486 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:03:26,486 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:03:26,486 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:03:26,487 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:03:26,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:03:26,487 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:03:26,487 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:03:26,796 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:03:26,817 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:03:26,821 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:03:26,823 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:03:26,823 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:03:26,824 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-properties/alternating_list-1.i [2019-10-15 01:03:26,901 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d46f420d/5b44ca3a8887492c8a4fae9f6f7c1950/FLAGbf858af21 [2019-10-15 01:03:27,467 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:03:27,468 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-properties/alternating_list-1.i [2019-10-15 01:03:27,480 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d46f420d/5b44ca3a8887492c8a4fae9f6f7c1950/FLAGbf858af21 [2019-10-15 01:03:27,795 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d46f420d/5b44ca3a8887492c8a4fae9f6f7c1950 [2019-10-15 01:03:27,804 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:03:27,805 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:03:27,806 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:03:27,806 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:03:27,809 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:03:27,810 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:03:27" (1/1) ... [2019-10-15 01:03:27,814 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63f1e481 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:27, skipping insertion in model container [2019-10-15 01:03:27,815 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:03:27" (1/1) ... [2019-10-15 01:03:27,822 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:03:27,874 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:03:28,322 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:03:28,333 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:03:28,378 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:03:28,437 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:03:28,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:28 WrapperNode [2019-10-15 01:03:28,438 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:03:28,438 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:03:28,439 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:03:28,439 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:03:28,453 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:28" (1/1) ... [2019-10-15 01:03:28,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:28" (1/1) ... [2019-10-15 01:03:28,470 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:28" (1/1) ... [2019-10-15 01:03:28,470 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:28" (1/1) ... [2019-10-15 01:03:28,494 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:28" (1/1) ... [2019-10-15 01:03:28,502 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:28" (1/1) ... [2019-10-15 01:03:28,512 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:28" (1/1) ... [2019-10-15 01:03:28,524 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:03:28,527 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:03:28,528 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:03:28,528 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:03:28,529 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:28" (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 [2019-10-15 01:03:28,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:03:28,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:03:28,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-15 01:03:28,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-15 01:03:28,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-10-15 01:03:28,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-10-15 01:03:28,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-10-15 01:03:28,596 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-10-15 01:03:28,596 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:03:28,597 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:03:28,597 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:03:28,597 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-15 01:03:28,597 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-15 01:03:28,597 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-15 01:03:28,598 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-15 01:03:28,598 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-15 01:03:28,598 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-15 01:03:28,598 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-15 01:03:28,598 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-15 01:03:28,598 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-15 01:03:28,599 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-15 01:03:28,599 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-15 01:03:28,599 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-15 01:03:28,599 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-15 01:03:28,599 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-15 01:03:28,599 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-15 01:03:28,600 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-15 01:03:28,600 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-15 01:03:28,600 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-15 01:03:28,600 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-10-15 01:03:28,600 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-10-15 01:03:28,601 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-10-15 01:03:28,601 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-15 01:03:28,601 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-15 01:03:28,601 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-15 01:03:28,601 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-15 01:03:28,601 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-15 01:03:28,602 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-15 01:03:28,602 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-15 01:03:28,602 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-15 01:03:28,602 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-15 01:03:28,602 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-15 01:03:28,602 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-15 01:03:28,603 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-15 01:03:28,603 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-15 01:03:28,603 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-15 01:03:28,603 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-15 01:03:28,603 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-15 01:03:28,603 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-15 01:03:28,603 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-15 01:03:28,604 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-15 01:03:28,604 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-15 01:03:28,604 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-15 01:03:28,604 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-15 01:03:28,604 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-15 01:03:28,604 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-15 01:03:28,605 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-15 01:03:28,605 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-15 01:03:28,605 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-15 01:03:28,605 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-15 01:03:28,605 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-15 01:03:28,605 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-15 01:03:28,606 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-15 01:03:28,606 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-15 01:03:28,606 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-15 01:03:28,606 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-15 01:03:28,606 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:03:28,606 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-15 01:03:28,607 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-15 01:03:28,607 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:03:28,607 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-15 01:03:28,607 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-15 01:03:28,607 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-15 01:03:28,607 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-15 01:03:28,607 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-15 01:03:28,608 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-15 01:03:28,608 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-15 01:03:28,608 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-15 01:03:28,608 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 01:03:28,608 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-15 01:03:28,608 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-15 01:03:28,609 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-15 01:03:28,609 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-15 01:03:28,609 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-15 01:03:28,609 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-15 01:03:28,609 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-15 01:03:28,609 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-15 01:03:28,610 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-15 01:03:28,610 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-15 01:03:28,610 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-15 01:03:28,610 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-15 01:03:28,610 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-15 01:03:28,610 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-15 01:03:28,611 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-15 01:03:28,611 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-15 01:03:28,611 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-15 01:03:28,611 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-15 01:03:28,611 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-15 01:03:28,611 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-15 01:03:28,611 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-15 01:03:28,612 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-15 01:03:28,612 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-15 01:03:28,612 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-15 01:03:28,612 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-15 01:03:28,612 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-15 01:03:28,612 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-15 01:03:28,612 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-15 01:03:28,613 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-15 01:03:28,613 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-15 01:03:28,613 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-15 01:03:28,613 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-15 01:03:28,613 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-15 01:03:28,613 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-15 01:03:28,613 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-15 01:03:28,614 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-15 01:03:28,614 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-15 01:03:28,614 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-15 01:03:28,614 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-15 01:03:28,614 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-10-15 01:03:28,614 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:03:28,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:03:28,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:03:28,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:03:28,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:03:28,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:03:28,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:03:28,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:03:28,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:03:28,980 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-10-15 01:03:29,207 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:03:29,208 INFO L284 CfgBuilder]: Removed 3 assume(true) statements. [2019-10-15 01:03:29,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:03:29 BoogieIcfgContainer [2019-10-15 01:03:29,209 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:03:29,211 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:03:29,211 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:03:29,214 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:03:29,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:03:27" (1/3) ... [2019-10-15 01:03:29,216 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d081124 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:03:29, skipping insertion in model container [2019-10-15 01:03:29,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:28" (2/3) ... [2019-10-15 01:03:29,217 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d081124 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:03:29, skipping insertion in model container [2019-10-15 01:03:29,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:03:29" (3/3) ... [2019-10-15 01:03:29,219 INFO L109 eAbstractionObserver]: Analyzing ICFG alternating_list-1.i [2019-10-15 01:03:29,229 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:03:29,238 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:03:29,250 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:03:29,273 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:03:29,274 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:03:29,274 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:03:29,274 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:03:29,274 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:03:29,275 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:03:29,275 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:03:29,275 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:03:29,289 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2019-10-15 01:03:29,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-15 01:03:29,295 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:03:29,296 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:03:29,298 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:03:29,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:29,304 INFO L82 PathProgramCache]: Analyzing trace with hash 209903222, now seen corresponding path program 1 times [2019-10-15 01:03:29,313 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:03:29,313 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975079625] [2019-10-15 01:03:29,313 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:29,314 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:29,314 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:03:29,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:29,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:03:29,454 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975079625] [2019-10-15 01:03:29,455 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:03:29,455 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:03:29,456 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867992261] [2019-10-15 01:03:29,460 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:03:29,462 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:03:29,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:03:29,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:03:29,481 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 2 states. [2019-10-15 01:03:29,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:03:29,508 INFO L93 Difference]: Finished difference Result 52 states and 69 transitions. [2019-10-15 01:03:29,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:03:29,510 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2019-10-15 01:03:29,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:03:29,519 INFO L225 Difference]: With dead ends: 52 [2019-10-15 01:03:29,519 INFO L226 Difference]: Without dead ends: 23 [2019-10-15 01:03:29,523 INFO L600 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 [2019-10-15 01:03:29,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-10-15 01:03:29,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-10-15 01:03:29,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-10-15 01:03:29,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2019-10-15 01:03:29,566 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 15 [2019-10-15 01:03:29,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:03:29,567 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2019-10-15 01:03:29,567 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:03:29,567 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2019-10-15 01:03:29,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-15 01:03:29,568 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:03:29,568 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:03:29,569 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:03:29,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:29,569 INFO L82 PathProgramCache]: Analyzing trace with hash 919137993, now seen corresponding path program 1 times [2019-10-15 01:03:29,569 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:03:29,570 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994975428] [2019-10-15 01:03:29,570 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:29,570 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:29,570 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:03:29,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:29,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:03:29,660 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994975428] [2019-10-15 01:03:29,660 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:03:29,660 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:03:29,660 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488448451] [2019-10-15 01:03:29,662 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:03:29,662 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:03:29,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:03:29,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:03:29,663 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand 3 states. [2019-10-15 01:03:29,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:03:29,692 INFO L93 Difference]: Finished difference Result 51 states and 61 transitions. [2019-10-15 01:03:29,692 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:03:29,692 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2019-10-15 01:03:29,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:03:29,694 INFO L225 Difference]: With dead ends: 51 [2019-10-15 01:03:29,694 INFO L226 Difference]: Without dead ends: 36 [2019-10-15 01:03:29,695 INFO L600 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 [2019-10-15 01:03:29,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-10-15 01:03:29,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 33. [2019-10-15 01:03:29,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-10-15 01:03:29,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2019-10-15 01:03:29,703 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 16 [2019-10-15 01:03:29,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:03:29,703 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2019-10-15 01:03:29,703 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:03:29,704 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2019-10-15 01:03:29,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-15 01:03:29,705 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:03:29,705 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:03:29,705 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:03:29,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:29,706 INFO L82 PathProgramCache]: Analyzing trace with hash 919131049, now seen corresponding path program 1 times [2019-10-15 01:03:29,706 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:03:29,706 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034528394] [2019-10-15 01:03:29,706 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:29,706 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:29,707 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:03:29,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:29,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:03:29,815 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034528394] [2019-10-15 01:03:29,815 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:03:29,815 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:03:29,815 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976366703] [2019-10-15 01:03:29,816 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:03:29,817 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:03:29,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:03:29,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:03:29,817 INFO L87 Difference]: Start difference. First operand 33 states and 38 transitions. Second operand 5 states. [2019-10-15 01:03:29,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:03:29,917 INFO L93 Difference]: Finished difference Result 61 states and 69 transitions. [2019-10-15 01:03:29,917 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 01:03:29,918 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-10-15 01:03:29,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:03:29,919 INFO L225 Difference]: With dead ends: 61 [2019-10-15 01:03:29,919 INFO L226 Difference]: Without dead ends: 46 [2019-10-15 01:03:29,920 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:03:29,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-10-15 01:03:29,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 35. [2019-10-15 01:03:29,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-10-15 01:03:29,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions. [2019-10-15 01:03:29,927 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 40 transitions. Word has length 16 [2019-10-15 01:03:29,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:03:29,927 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 40 transitions. [2019-10-15 01:03:29,928 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:03:29,928 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 40 transitions. [2019-10-15 01:03:29,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-15 01:03:29,930 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:03:29,930 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:03:29,930 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:03:29,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:29,931 INFO L82 PathProgramCache]: Analyzing trace with hash 1446652468, now seen corresponding path program 1 times [2019-10-15 01:03:29,934 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:03:29,934 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228084539] [2019-10-15 01:03:29,935 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:29,935 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:29,935 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:03:29,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:30,188 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:03:30,189 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228084539] [2019-10-15 01:03:30,189 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1945765619] [2019-10-15 01:03:30,189 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:03:30,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:30,341 INFO L256 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 24 conjunts are in the unsatisfiable core [2019-10-15 01:03:30,350 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:03:30,414 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-10-15 01:03:30,414 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 01:03:30,420 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:03:30,420 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-15 01:03:30,421 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-10-15 01:03:30,484 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-10-15 01:03:30,484 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 01:03:30,495 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:03:30,495 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-15 01:03:30,496 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:19 [2019-10-15 01:03:30,545 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:03:30,546 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2019-10-15 01:03:30,547 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 01:03:30,556 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:03:30,556 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-15 01:03:30,557 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:24, output treesize:18 [2019-10-15 01:03:30,617 INFO L341 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2019-10-15 01:03:30,618 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 11 [2019-10-15 01:03:30,618 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 01:03:30,625 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:03:30,625 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-15 01:03:30,626 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:12 [2019-10-15 01:03:30,656 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2019-10-15 01:03:30,657 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 01:03:30,666 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:03:30,667 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-10-15 01:03:30,667 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:23, output treesize:19 [2019-10-15 01:03:30,723 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2019-10-15 01:03:30,724 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 01:03:30,730 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:03:30,731 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-15 01:03:30,732 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:26, output treesize:3 [2019-10-15 01:03:30,739 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:03:30,739 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:03:30,786 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:03:30,806 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-15 01:03:30,813 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-15 01:03:30,820 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:03:30,821 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2019-10-15 01:03:30,822 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:54, output treesize:22 [2019-10-15 01:03:30,871 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:03:30,929 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 75 [2019-10-15 01:03:30,930 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 01:03:30,983 INFO L567 ElimStorePlain]: treesize reduction 32, result has 50.8 percent of original size [2019-10-15 01:03:30,984 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2019-10-15 01:03:30,985 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:34, output treesize:21 [2019-10-15 01:03:31,133 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:03:31,134 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1422740364] [2019-10-15 01:03:31,143 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 23 [2019-10-15 01:03:31,179 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-15 01:03:31,179 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-15 01:03:31,251 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-15 01:03:31,253 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 32 variables. [2019-10-15 01:03:31,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:31,258 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-15 01:03:31,293 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-10-15 01:03:31,294 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-15 01:03:31,295 INFO L553 sIntCurrentIteration]: We unified 21 AI predicates to 21 [2019-10-15 01:03:31,295 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-15 01:03:31,296 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-15 01:03:31,296 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [11, 9, 9] total 21 [2019-10-15 01:03:31,297 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750622694] [2019-10-15 01:03:31,297 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:03:31,298 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-15 01:03:31,298 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-15 01:03:31,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:03:31,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:03:31,299 INFO L87 Difference]: Start difference. First operand 35 states and 40 transitions. Second operand 2 states. [2019-10-15 01:03:31,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:03:31,301 INFO L93 Difference]: Finished difference Result 35 states and 40 transitions. [2019-10-15 01:03:31,301 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:03:31,302 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2019-10-15 01:03:31,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:03:31,302 INFO L225 Difference]: With dead ends: 35 [2019-10-15 01:03:31,302 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 01:03:31,303 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:03:31,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 01:03:31,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 01:03:31,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 01:03:31,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 01:03:31,304 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2019-10-15 01:03:31,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:03:31,304 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 01:03:31,304 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:03:31,304 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 01:03:31,305 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 01:03:31,508 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:03:31,514 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 01:03:31,556 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:03:31,557 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:03:31,557 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:03:31,557 INFO L446 ceAbstractionStarter]: At program point myexitENTRY(lines 517 519) the Hoare annotation is: true [2019-10-15 01:03:31,557 INFO L446 ceAbstractionStarter]: At program point L518(line 518) the Hoare annotation is: true [2019-10-15 01:03:31,557 INFO L443 ceAbstractionStarter]: For program point myexitEXIT(lines 517 519) no Hoare annotation was computed. [2019-10-15 01:03:31,557 INFO L443 ceAbstractionStarter]: For program point __bswap_32ENTRY(lines 161 165) no Hoare annotation was computed. [2019-10-15 01:03:31,558 INFO L443 ceAbstractionStarter]: For program point __bswap_32FINAL(lines 161 165) no Hoare annotation was computed. [2019-10-15 01:03:31,558 INFO L443 ceAbstractionStarter]: For program point __bswap_32EXIT(lines 161 165) no Hoare annotation was computed. [2019-10-15 01:03:31,558 INFO L443 ceAbstractionStarter]: For program point __uint64_identityFINAL(lines 181 185) no Hoare annotation was computed. [2019-10-15 01:03:31,558 INFO L443 ceAbstractionStarter]: For program point __uint64_identityENTRY(lines 181 185) no Hoare annotation was computed. [2019-10-15 01:03:31,558 INFO L443 ceAbstractionStarter]: For program point __uint64_identityEXIT(lines 181 185) no Hoare annotation was computed. [2019-10-15 01:03:31,558 INFO L443 ceAbstractionStarter]: For program point __bswap_64ENTRY(lines 166 170) no Hoare annotation was computed. [2019-10-15 01:03:31,558 INFO L443 ceAbstractionStarter]: For program point __bswap_64FINAL(lines 166 170) no Hoare annotation was computed. [2019-10-15 01:03:31,559 INFO L443 ceAbstractionStarter]: For program point __bswap_64EXIT(lines 166 170) no Hoare annotation was computed. [2019-10-15 01:03:31,559 INFO L443 ceAbstractionStarter]: For program point __uint16_identityENTRY(lines 171 175) no Hoare annotation was computed. [2019-10-15 01:03:31,559 INFO L443 ceAbstractionStarter]: For program point __uint16_identityEXIT(lines 171 175) no Hoare annotation was computed. [2019-10-15 01:03:31,559 INFO L443 ceAbstractionStarter]: For program point __uint16_identityFINAL(lines 171 175) no Hoare annotation was computed. [2019-10-15 01:03:31,563 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:03:31,563 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-15 01:03:31,563 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:03:31,563 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:03:31,563 INFO L443 ceAbstractionStarter]: For program point L543(lines 543 551) no Hoare annotation was computed. [2019-10-15 01:03:31,563 INFO L443 ceAbstractionStarter]: For program point L543-2(lines 543 551) no Hoare annotation was computed. [2019-10-15 01:03:31,563 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 520 564) no Hoare annotation was computed. [2019-10-15 01:03:31,564 INFO L443 ceAbstractionStarter]: For program point L535(line 535) no Hoare annotation was computed. [2019-10-15 01:03:31,564 INFO L446 ceAbstractionStarter]: At program point L535-1(line 535) the Hoare annotation is: true [2019-10-15 01:03:31,564 INFO L443 ceAbstractionStarter]: For program point L535-3(line 535) no Hoare annotation was computed. [2019-10-15 01:03:31,564 INFO L443 ceAbstractionStarter]: For program point L527(lines 527 533) no Hoare annotation was computed. [2019-10-15 01:03:31,564 INFO L443 ceAbstractionStarter]: For program point L527-2(lines 527 533) no Hoare annotation was computed. [2019-10-15 01:03:31,564 INFO L443 ceAbstractionStarter]: For program point L523(line 523) no Hoare annotation was computed. [2019-10-15 01:03:31,564 INFO L446 ceAbstractionStarter]: At program point L523-1(line 523) the Hoare annotation is: true [2019-10-15 01:03:31,564 INFO L443 ceAbstractionStarter]: For program point L523-3(line 523) no Hoare annotation was computed. [2019-10-15 01:03:31,565 INFO L443 ceAbstractionStarter]: For program point L549(lines 549 550) no Hoare annotation was computed. [2019-10-15 01:03:31,565 INFO L443 ceAbstractionStarter]: For program point L545(lines 545 546) no Hoare annotation was computed. [2019-10-15 01:03:31,565 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 520 564) no Hoare annotation was computed. [2019-10-15 01:03:31,565 INFO L439 ceAbstractionStarter]: At program point L550(lines 520 564) the Hoare annotation is: false [2019-10-15 01:03:31,565 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 520 564) the Hoare annotation is: true [2019-10-15 01:03:31,565 INFO L443 ceAbstractionStarter]: For program point L542-1(lines 542 553) no Hoare annotation was computed. [2019-10-15 01:03:31,566 INFO L439 ceAbstractionStarter]: At program point L542-3(lines 542 553) the Hoare annotation is: (and (= main_~a~0.base main_~p~0.base) (= main_~flag~0 1) (= main_~a~0.offset main_~p~0.offset) (= 3 (select (select |#memory_int| main_~p~0.base) main_~p~0.offset))) [2019-10-15 01:03:31,566 INFO L443 ceAbstractionStarter]: For program point L542-4(lines 542 553) no Hoare annotation was computed. [2019-10-15 01:03:31,566 INFO L443 ceAbstractionStarter]: For program point L526-1(lines 526 538) no Hoare annotation was computed. [2019-10-15 01:03:31,566 INFO L439 ceAbstractionStarter]: At program point L526-3(lines 526 538) the Hoare annotation is: false [2019-10-15 01:03:31,567 INFO L443 ceAbstractionStarter]: For program point L526-4(lines 526 538) no Hoare annotation was computed. [2019-10-15 01:03:31,567 INFO L443 ceAbstractionStarter]: For program point L555-1(lines 555 559) no Hoare annotation was computed. [2019-10-15 01:03:31,568 INFO L446 ceAbstractionStarter]: At program point L555-3(lines 555 559) the Hoare annotation is: true [2019-10-15 01:03:31,568 INFO L443 ceAbstractionStarter]: For program point L555-4(lines 555 559) no Hoare annotation was computed. [2019-10-15 01:03:31,568 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 562) no Hoare annotation was computed. [2019-10-15 01:03:31,568 INFO L443 ceAbstractionStarter]: For program point __uint32_identityFINAL(lines 176 180) no Hoare annotation was computed. [2019-10-15 01:03:31,568 INFO L443 ceAbstractionStarter]: For program point __uint32_identityENTRY(lines 176 180) no Hoare annotation was computed. [2019-10-15 01:03:31,568 INFO L443 ceAbstractionStarter]: For program point __uint32_identityEXIT(lines 176 180) no Hoare annotation was computed. [2019-10-15 01:03:31,580 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-15 01:03:31,582 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-15 01:03:31,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 01:03:31 BoogieIcfgContainer [2019-10-15 01:03:31,585 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 01:03:31,596 INFO L168 Benchmark]: Toolchain (without parser) took 3781.70 ms. Allocated memory was 145.2 MB in the beginning and 248.5 MB in the end (delta: 103.3 MB). Free memory was 100.3 MB in the beginning and 190.7 MB in the end (delta: -90.3 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. [2019-10-15 01:03:31,597 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 145.2 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-15 01:03:31,602 INFO L168 Benchmark]: CACSL2BoogieTranslator took 632.44 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 100.1 MB in the beginning and 168.5 MB in the end (delta: -68.4 MB). Peak memory consumption was 19.5 MB. Max. memory is 7.1 GB. [2019-10-15 01:03:31,603 INFO L168 Benchmark]: Boogie Preprocessor took 85.52 ms. Allocated memory is still 202.9 MB. Free memory was 168.5 MB in the beginning and 166.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2019-10-15 01:03:31,604 INFO L168 Benchmark]: RCFGBuilder took 682.08 ms. Allocated memory is still 202.9 MB. Free memory was 166.0 MB in the beginning and 122.2 MB in the end (delta: 43.8 MB). Peak memory consumption was 43.8 MB. Max. memory is 7.1 GB. [2019-10-15 01:03:31,605 INFO L168 Benchmark]: TraceAbstraction took 2374.15 ms. Allocated memory was 202.9 MB in the beginning and 248.5 MB in the end (delta: 45.6 MB). Free memory was 121.5 MB in the beginning and 190.7 MB in the end (delta: -69.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-10-15 01:03:31,612 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 145.2 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 632.44 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 100.1 MB in the beginning and 168.5 MB in the end (delta: -68.4 MB). Peak memory consumption was 19.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 85.52 ms. Allocated memory is still 202.9 MB. Free memory was 168.5 MB in the beginning and 166.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 682.08 ms. Allocated memory is still 202.9 MB. Free memory was 166.0 MB in the beginning and 122.2 MB in the end (delta: 43.8 MB). Peak memory consumption was 43.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2374.15 ms. Allocated memory was 202.9 MB in the beginning and 248.5 MB in the end (delta: 45.6 MB). Free memory was 121.5 MB in the beginning and 190.7 MB in the end (delta: -69.1 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 562]: 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 - InvariantResult [Line: 526]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 542]: Loop Invariant [2019-10-15 01:03:31,629 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-15 01:03:31,630 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((a == p && flag == 1) && a == p) && 3 == unknown-#memory_int-unknown[p][p] - InvariantResult [Line: 520]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 555]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 518]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 51 locations, 1 error locations. Result: SAFE, OverallTime: 2.2s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 98 SDtfs, 24 SDslu, 71 SDs, 0 SdLazy, 35 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 14 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 14 PreInvPairs, 16 NumberOfFragments, 28 HoareAnnotationTreeSize, 14 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 107 ConstructedInterpolants, 9 QuantifiedInterpolants, 14356 SizeOfPredicates, 14 NumberOfNonLiveVariables, 102 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 0/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 119, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.9404761904761905, AVG_VARS_REMOVED_DURING_WEAKENING: 0.9523809523809523, AVG_WEAKENED_CONJUNCTS: 0.2857142857142857, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...