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/list-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:03:27,528 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:03:27,531 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:03:27,548 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:03:27,549 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:03:27,550 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:03:27,552 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:03:27,560 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:03:27,562 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:03:27,563 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:03:27,564 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:03:27,565 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:03:27,565 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:03:27,568 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:03:27,569 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:03:27,570 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:03:27,571 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:03:27,571 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:03:27,574 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:03:27,579 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:03:27,583 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:03:27,585 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:03:27,588 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:03:27,589 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:03:27,591 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:03:27,591 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:03:27,591 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:03:27,593 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:03:27,594 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:03:27,595 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:03:27,595 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:03:27,597 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:03:27,598 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:03:27,599 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:03:27,600 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:03:27,600 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:03:27,601 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:03:27,601 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:03:27,601 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:03:27,602 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:03:27,603 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:03:27,604 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 01:03:27,638 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:03:27,638 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:03:27,642 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:03:27,642 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:03:27,642 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:03:27,643 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:03:27,643 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:03:27,643 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:03:27,643 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:03:27,643 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:03:27,643 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:03:27,644 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:03:27,644 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:03:27,644 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:03:27,644 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:03:27,644 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:03:27,645 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:03:27,645 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:03:27,645 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:03:27,646 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:03:27,647 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:03:27,647 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:03:27,647 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:03:27,647 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:03:27,647 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:03:27,648 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:03:27,648 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:03:27,648 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:03:27,648 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 01:03:27,925 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:03:27,944 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:03:27,948 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:03:27,949 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:03:27,950 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:03:27,950 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-properties/list-1.i [2019-10-15 01:03:28,020 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd93ba3cc/8206c616bf424df9b705448f87d1ea00/FLAG869be549e [2019-10-15 01:03:28,601 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:03:28,602 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-properties/list-1.i [2019-10-15 01:03:28,622 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd93ba3cc/8206c616bf424df9b705448f87d1ea00/FLAG869be549e [2019-10-15 01:03:28,827 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd93ba3cc/8206c616bf424df9b705448f87d1ea00 [2019-10-15 01:03:28,838 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:03:28,843 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:03:28,846 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:03:28,846 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:03:28,849 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:03:28,851 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:03:28" (1/1) ... [2019-10-15 01:03:28,854 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fc689a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:28, skipping insertion in model container [2019-10-15 01:03:28,854 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:03:28" (1/1) ... [2019-10-15 01:03:28,863 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:03:28,917 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:03:29,351 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:03:29,362 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:03:29,413 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:03:29,466 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:03:29,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:29 WrapperNode [2019-10-15 01:03:29,467 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:03:29,467 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:03:29,467 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:03:29,467 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:03:29,481 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:29" (1/1) ... [2019-10-15 01:03:29,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:29" (1/1) ... [2019-10-15 01:03:29,513 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:29" (1/1) ... [2019-10-15 01:03:29,513 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:29" (1/1) ... [2019-10-15 01:03:29,537 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:29" (1/1) ... [2019-10-15 01:03:29,545 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:29" (1/1) ... [2019-10-15 01:03:29,548 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:29" (1/1) ... [2019-10-15 01:03:29,554 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:03:29,555 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:03:29,555 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:03:29,555 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:03:29,556 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:03:29,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:03:29,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:03:29,609 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-15 01:03:29,609 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-15 01:03:29,609 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-10-15 01:03:29,609 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-10-15 01:03:29,610 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-10-15 01:03:29,610 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-10-15 01:03:29,610 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:03:29,610 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:03:29,610 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:03:29,611 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-15 01:03:29,611 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-15 01:03:29,611 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-15 01:03:29,611 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-15 01:03:29,611 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-15 01:03:29,611 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-15 01:03:29,612 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-15 01:03:29,612 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-15 01:03:29,612 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-15 01:03:29,612 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-15 01:03:29,612 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-15 01:03:29,612 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-15 01:03:29,613 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-15 01:03:29,613 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-15 01:03:29,613 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-15 01:03:29,613 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-15 01:03:29,613 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-15 01:03:29,614 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-15 01:03:29,614 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-10-15 01:03:29,614 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-10-15 01:03:29,614 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-10-15 01:03:29,614 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-15 01:03:29,614 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-15 01:03:29,615 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-15 01:03:29,615 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-15 01:03:29,615 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-15 01:03:29,615 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-15 01:03:29,615 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-15 01:03:29,615 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-15 01:03:29,615 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-15 01:03:29,616 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-15 01:03:29,616 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-15 01:03:29,616 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-15 01:03:29,616 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-15 01:03:29,616 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-15 01:03:29,617 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-15 01:03:29,617 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-15 01:03:29,617 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-15 01:03:29,617 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-15 01:03:29,617 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-15 01:03:29,617 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-15 01:03:29,618 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-15 01:03:29,618 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-15 01:03:29,618 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-15 01:03:29,618 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-15 01:03:29,618 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-15 01:03:29,618 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-15 01:03:29,619 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-15 01:03:29,619 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-15 01:03:29,619 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-15 01:03:29,619 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-15 01:03:29,619 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-15 01:03:29,619 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-15 01:03:29,620 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-15 01:03:29,620 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-15 01:03:29,620 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:03:29,620 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-15 01:03:29,620 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-15 01:03:29,620 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:03:29,621 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-15 01:03:29,621 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-15 01:03:29,621 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-15 01:03:29,621 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-15 01:03:29,621 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-15 01:03:29,621 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-15 01:03:29,621 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-15 01:03:29,622 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-15 01:03:29,622 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 01:03:29,622 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-15 01:03:29,622 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-15 01:03:29,622 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-15 01:03:29,622 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-15 01:03:29,623 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-15 01:03:29,623 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-15 01:03:29,623 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-15 01:03:29,623 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-15 01:03:29,623 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-15 01:03:29,623 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-15 01:03:29,624 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-15 01:03:29,624 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-15 01:03:29,624 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-15 01:03:29,624 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-15 01:03:29,624 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-15 01:03:29,625 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-15 01:03:29,625 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-15 01:03:29,625 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-15 01:03:29,625 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-15 01:03:29,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-15 01:03:29,625 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-15 01:03:29,625 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-15 01:03:29,626 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-15 01:03:29,626 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-15 01:03:29,626 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-15 01:03:29,626 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-15 01:03:29,626 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-15 01:03:29,626 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-15 01:03:29,627 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-15 01:03:29,627 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-15 01:03:29,627 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-15 01:03:29,627 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-15 01:03:29,627 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-15 01:03:29,627 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-15 01:03:29,627 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-15 01:03:29,628 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-15 01:03:29,628 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-15 01:03:29,628 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-15 01:03:29,628 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-15 01:03:29,628 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-10-15 01:03:29,628 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:03:29,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:03:29,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:03:29,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:03:29,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:03:29,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:03:29,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:03:29,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:03:29,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:03:30,008 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-10-15 01:03:30,194 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:03:30,196 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:03:30,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:03:30 BoogieIcfgContainer [2019-10-15 01:03:30,198 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:03:30,199 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:03:30,199 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:03:30,202 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:03:30,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:03:28" (1/3) ... [2019-10-15 01:03:30,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ae4987d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:03:30, skipping insertion in model container [2019-10-15 01:03:30,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:29" (2/3) ... [2019-10-15 01:03:30,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ae4987d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:03:30, skipping insertion in model container [2019-10-15 01:03:30,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:03:30" (3/3) ... [2019-10-15 01:03:30,206 INFO L109 eAbstractionObserver]: Analyzing ICFG list-1.i [2019-10-15 01:03:30,216 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:03:30,223 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:03:30,235 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:03:30,260 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:03:30,260 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:03:30,260 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:03:30,261 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:03:30,261 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:03:30,261 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:03:30,261 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:03:30,262 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:03:30,277 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2019-10-15 01:03:30,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-15 01:03:30,283 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:03:30,284 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:03:30,286 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:03:30,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:30,292 INFO L82 PathProgramCache]: Analyzing trace with hash 1613857984, now seen corresponding path program 1 times [2019-10-15 01:03:30,302 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:03:30,303 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206744397] [2019-10-15 01:03:30,303 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:30,303 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:30,303 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:03:30,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:30,436 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 01:03:30,437 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206744397] [2019-10-15 01:03:30,438 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:03:30,439 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:03:30,439 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314087668] [2019-10-15 01:03:30,444 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:03:30,445 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:03:30,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:03:30,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:03:30,462 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 2 states. [2019-10-15 01:03:30,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:03:30,483 INFO L93 Difference]: Finished difference Result 56 states and 74 transitions. [2019-10-15 01:03:30,483 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:03:30,484 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-10-15 01:03:30,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:03:30,491 INFO L225 Difference]: With dead ends: 56 [2019-10-15 01:03:30,491 INFO L226 Difference]: Without dead ends: 25 [2019-10-15 01:03:30,495 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 01:03:30,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-10-15 01:03:30,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-10-15 01:03:30,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-10-15 01:03:30,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2019-10-15 01:03:30,535 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 16 [2019-10-15 01:03:30,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:03:30,535 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2019-10-15 01:03:30,535 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:03:30,536 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2019-10-15 01:03:30,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-15 01:03:30,537 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:03:30,537 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:03:30,537 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:03:30,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:30,538 INFO L82 PathProgramCache]: Analyzing trace with hash -1642379272, now seen corresponding path program 1 times [2019-10-15 01:03:30,538 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:03:30,538 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760615577] [2019-10-15 01:03:30,539 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:30,539 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:30,539 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:03:30,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:30,680 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 01:03:30,681 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760615577] [2019-10-15 01:03:30,681 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:03:30,681 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:03:30,681 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511726725] [2019-10-15 01:03:30,683 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:03:30,683 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:03:30,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:03:30,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:03:30,684 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand 5 states. [2019-10-15 01:03:30,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:03:30,863 INFO L93 Difference]: Finished difference Result 50 states and 57 transitions. [2019-10-15 01:03:30,863 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 01:03:30,864 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2019-10-15 01:03:30,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:03:30,867 INFO L225 Difference]: With dead ends: 50 [2019-10-15 01:03:30,867 INFO L226 Difference]: Without dead ends: 46 [2019-10-15 01:03:30,868 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 01:03:30,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-10-15 01:03:30,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 34. [2019-10-15 01:03:30,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-10-15 01:03:30,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 40 transitions. [2019-10-15 01:03:30,877 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 40 transitions. Word has length 20 [2019-10-15 01:03:30,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:03:30,878 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 40 transitions. [2019-10-15 01:03:30,878 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:03:30,878 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 40 transitions. [2019-10-15 01:03:30,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-15 01:03:30,879 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:03:30,880 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 01:03:30,881 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:03:30,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:30,882 INFO L82 PathProgramCache]: Analyzing trace with hash -2024806125, now seen corresponding path program 1 times [2019-10-15 01:03:30,882 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:03:30,882 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836555377] [2019-10-15 01:03:30,882 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:30,882 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:30,883 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:03:30,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:31,006 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:03:31,007 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836555377] [2019-10-15 01:03:31,007 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:03:31,007 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:03:31,008 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090549589] [2019-10-15 01:03:31,008 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:03:31,009 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:03:31,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:03:31,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:03:31,009 INFO L87 Difference]: Start difference. First operand 34 states and 40 transitions. Second operand 5 states. [2019-10-15 01:03:31,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:03:31,123 INFO L93 Difference]: Finished difference Result 52 states and 59 transitions. [2019-10-15 01:03:31,123 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 01:03:31,124 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-10-15 01:03:31,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:03:31,125 INFO L225 Difference]: With dead ends: 52 [2019-10-15 01:03:31,125 INFO L226 Difference]: Without dead ends: 44 [2019-10-15 01:03:31,126 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 01:03:31,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2019-10-15 01:03:31,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 32. [2019-10-15 01:03:31,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-10-15 01:03:31,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 37 transitions. [2019-10-15 01:03:31,132 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 37 transitions. Word has length 22 [2019-10-15 01:03:31,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:03:31,132 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 37 transitions. [2019-10-15 01:03:31,132 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:03:31,133 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2019-10-15 01:03:31,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-15 01:03:31,133 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:03:31,134 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 01:03:31,134 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:03:31,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:31,134 INFO L82 PathProgramCache]: Analyzing trace with hash -1000103149, now seen corresponding path program 1 times [2019-10-15 01:03:31,135 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:03:31,135 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030331941] [2019-10-15 01:03:31,135 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:31,135 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:31,136 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:03:31,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:31,194 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:03:31,195 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030331941] [2019-10-15 01:03:31,195 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:03:31,195 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:03:31,195 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930538023] [2019-10-15 01:03:31,196 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:03:31,196 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:03:31,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:03:31,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:03:31,197 INFO L87 Difference]: Start difference. First operand 32 states and 37 transitions. Second operand 5 states. [2019-10-15 01:03:31,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:03:31,295 INFO L93 Difference]: Finished difference Result 52 states and 59 transitions. [2019-10-15 01:03:31,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 01:03:31,295 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-10-15 01:03:31,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:03:31,296 INFO L225 Difference]: With dead ends: 52 [2019-10-15 01:03:31,296 INFO L226 Difference]: Without dead ends: 41 [2019-10-15 01:03:31,297 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 01:03:31,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-10-15 01:03:31,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 29. [2019-10-15 01:03:31,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-10-15 01:03:31,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2019-10-15 01:03:31,302 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 22 [2019-10-15 01:03:31,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:03:31,302 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2019-10-15 01:03:31,302 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:03:31,302 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2019-10-15 01:03:31,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-15 01:03:31,303 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:03:31,303 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, 1, 1] [2019-10-15 01:03:31,304 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:03:31,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:31,304 INFO L82 PathProgramCache]: Analyzing trace with hash 422878047, now seen corresponding path program 1 times [2019-10-15 01:03:31,305 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:03:31,305 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183379520] [2019-10-15 01:03:31,305 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:31,305 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:31,305 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:03:31,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:31,453 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 01:03:31,454 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183379520] [2019-10-15 01:03:31,455 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [697693899] [2019-10-15 01:03:31,455 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 01:03:31,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:31,566 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 24 conjunts are in the unsatisfiable core [2019-10-15 01:03:31,573 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:03:31,624 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 01:03:31,625 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 01:03:31,629 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:03:31,630 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-15 01:03:31,630 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-10-15 01:03:31,681 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:03:31,682 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 01:03:31,683 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 01:03:31,693 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:03:31,701 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 01:03:31,701 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-15 01:03:31,712 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:03:31,713 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-15 01:03:31,713 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:28, output treesize:18 [2019-10-15 01:03:31,754 INFO L341 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2019-10-15 01:03:31,755 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 01:03:31,756 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 01:03:31,764 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:03:31,765 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-15 01:03:31,765 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:12 [2019-10-15 01:03:31,799 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 01:03:31,800 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 01:03:31,810 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:03:31,812 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 01:03:31,813 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:23, output treesize:19 [2019-10-15 01:03:31,858 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 01:03:31,860 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 01:03:31,866 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:03:31,867 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 01:03:31,868 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:26, output treesize:3 [2019-10-15 01:03:31,873 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 01:03:31,874 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:03:31,916 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:03:31,937 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 01:03:31,942 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-15 01:03:31,951 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:03:31,952 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 01:03:31,953 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:54, output treesize:22 [2019-10-15 01:03:31,986 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:03:32,011 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 170 treesize of output 162 [2019-10-15 01:03:32,012 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:03:32,013 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:03:32,017 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:03:32,019 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:03:32,020 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:03:32,021 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:03:32,028 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 01:03:32,190 WARN L191 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 27 [2019-10-15 01:03:32,191 INFO L567 ElimStorePlain]: treesize reduction 307, result has 10.2 percent of original size [2019-10-15 01:03:32,195 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 01:03:32,196 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:34, output treesize:21 [2019-10-15 01:03:32,324 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 01:03:32,325 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [739056601] [2019-10-15 01:03:32,331 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 25 [2019-10-15 01:03:32,376 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-15 01:03:32,376 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-15 01:03:32,454 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-15 01:03:32,456 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 19 root evaluator evaluations with a maximum evaluation depth of 0. Performed 19 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 33 variables. [2019-10-15 01:03:32,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:32,459 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-15 01:03:32,491 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-10-15 01:03:32,492 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-15 01:03:32,497 INFO L553 sIntCurrentIteration]: We unified 23 AI predicates to 23 [2019-10-15 01:03:32,497 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-15 01:03:32,498 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-15 01:03:32,498 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [8, 8, 8] total 13 [2019-10-15 01:03:32,498 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161242105] [2019-10-15 01:03:32,499 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:03:32,500 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-15 01:03:32,500 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-15 01:03:32,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:03:32,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:03:32,501 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand 2 states. [2019-10-15 01:03:32,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:03:32,503 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2019-10-15 01:03:32,503 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:03:32,503 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2019-10-15 01:03:32,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:03:32,504 INFO L225 Difference]: With dead ends: 29 [2019-10-15 01:03:32,504 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 01:03:32,504 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:03:32,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 01:03:32,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 01:03:32,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 01:03:32,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 01:03:32,505 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2019-10-15 01:03:32,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:03:32,506 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 01:03:32,506 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:03:32,506 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 01:03:32,506 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 01:03:32,713 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:03:32,718 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 01:03:32,744 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:03:32,745 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:03:32,745 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:03:32,745 INFO L446 ceAbstractionStarter]: At program point myexitENTRY(lines 513 515) the Hoare annotation is: true [2019-10-15 01:03:32,745 INFO L443 ceAbstractionStarter]: For program point myexitEXIT(lines 513 515) no Hoare annotation was computed. [2019-10-15 01:03:32,745 INFO L446 ceAbstractionStarter]: At program point L514(line 514) the Hoare annotation is: true [2019-10-15 01:03:32,745 INFO L443 ceAbstractionStarter]: For program point __bswap_32ENTRY(lines 161 165) no Hoare annotation was computed. [2019-10-15 01:03:32,746 INFO L443 ceAbstractionStarter]: For program point __bswap_32FINAL(lines 161 165) no Hoare annotation was computed. [2019-10-15 01:03:32,746 INFO L443 ceAbstractionStarter]: For program point __bswap_32EXIT(lines 161 165) no Hoare annotation was computed. [2019-10-15 01:03:32,746 INFO L443 ceAbstractionStarter]: For program point __uint64_identityFINAL(lines 181 185) no Hoare annotation was computed. [2019-10-15 01:03:32,746 INFO L443 ceAbstractionStarter]: For program point __uint64_identityENTRY(lines 181 185) no Hoare annotation was computed. [2019-10-15 01:03:32,746 INFO L443 ceAbstractionStarter]: For program point __uint64_identityEXIT(lines 181 185) no Hoare annotation was computed. [2019-10-15 01:03:32,746 INFO L443 ceAbstractionStarter]: For program point __bswap_64ENTRY(lines 166 170) no Hoare annotation was computed. [2019-10-15 01:03:32,746 INFO L443 ceAbstractionStarter]: For program point __bswap_64FINAL(lines 166 170) no Hoare annotation was computed. [2019-10-15 01:03:32,747 INFO L443 ceAbstractionStarter]: For program point __bswap_64EXIT(lines 166 170) no Hoare annotation was computed. [2019-10-15 01:03:32,747 INFO L443 ceAbstractionStarter]: For program point __uint16_identityENTRY(lines 171 175) no Hoare annotation was computed. [2019-10-15 01:03:32,747 INFO L443 ceAbstractionStarter]: For program point __uint16_identityEXIT(lines 171 175) no Hoare annotation was computed. [2019-10-15 01:03:32,747 INFO L443 ceAbstractionStarter]: For program point __uint16_identityFINAL(lines 171 175) no Hoare annotation was computed. [2019-10-15 01:03:32,747 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:03:32,747 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-15 01:03:32,748 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:03:32,748 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:03:32,748 INFO L443 ceAbstractionStarter]: For program point L543(lines 543 544) no Hoare annotation was computed. [2019-10-15 01:03:32,748 INFO L443 ceAbstractionStarter]: For program point L543-2(lines 520 548) no Hoare annotation was computed. [2019-10-15 01:03:32,748 INFO L443 ceAbstractionStarter]: For program point L543-3(lines 543 544) no Hoare annotation was computed. [2019-10-15 01:03:32,748 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 520 548) no Hoare annotation was computed. [2019-10-15 01:03:32,748 INFO L443 ceAbstractionStarter]: For program point L535(line 535) no Hoare annotation was computed. [2019-10-15 01:03:32,749 INFO L446 ceAbstractionStarter]: At program point L535-1(line 535) the Hoare annotation is: true [2019-10-15 01:03:32,749 INFO L443 ceAbstractionStarter]: For program point L535-3(line 535) no Hoare annotation was computed. [2019-10-15 01:03:32,749 INFO L443 ceAbstractionStarter]: For program point L532(lines 532 538) no Hoare annotation was computed. [2019-10-15 01:03:32,749 INFO L443 ceAbstractionStarter]: For program point L532-2(lines 520 548) no Hoare annotation was computed. [2019-10-15 01:03:32,749 INFO L443 ceAbstractionStarter]: For program point L532-3(lines 532 538) no Hoare annotation was computed. [2019-10-15 01:03:32,749 INFO L443 ceAbstractionStarter]: For program point L528(line 528) no Hoare annotation was computed. [2019-10-15 01:03:32,749 INFO L446 ceAbstractionStarter]: At program point L528-1(line 528) the Hoare annotation is: true [2019-10-15 01:03:32,750 INFO L443 ceAbstractionStarter]: For program point L528-3(line 528) no Hoare annotation was computed. [2019-10-15 01:03:32,750 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 546) no Hoare annotation was computed. [2019-10-15 01:03:32,750 INFO L443 ceAbstractionStarter]: For program point L545(lines 545 546) no Hoare annotation was computed. [2019-10-15 01:03:32,750 INFO L443 ceAbstractionStarter]: For program point L545-2(lines 545 546) no Hoare annotation was computed. [2019-10-15 01:03:32,750 INFO L443 ceAbstractionStarter]: For program point L541-1(lines 541 542) no Hoare annotation was computed. [2019-10-15 01:03:32,750 INFO L439 ceAbstractionStarter]: At program point L541-3(lines 541 542) the Hoare annotation is: (and (= main_~a~0.base main_~p~0.base) (= main_~a~0.offset main_~p~0.offset) (= 3 (select (select |#memory_int| main_~p~0.base) main_~p~0.offset))) [2019-10-15 01:03:32,751 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 520 548) no Hoare annotation was computed. [2019-10-15 01:03:32,751 INFO L443 ceAbstractionStarter]: For program point L525-1(lines 525 531) no Hoare annotation was computed. [2019-10-15 01:03:32,751 INFO L439 ceAbstractionStarter]: At program point L525-3(lines 525 531) the Hoare annotation is: false [2019-10-15 01:03:32,751 INFO L443 ceAbstractionStarter]: For program point L546(line 546) no Hoare annotation was computed. [2019-10-15 01:03:32,751 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 520 548) the Hoare annotation is: true [2019-10-15 01:03:32,751 INFO L443 ceAbstractionStarter]: For program point L522(line 522) no Hoare annotation was computed. [2019-10-15 01:03:32,751 INFO L446 ceAbstractionStarter]: At program point L522-1(line 522) the Hoare annotation is: true [2019-10-15 01:03:32,752 INFO L443 ceAbstractionStarter]: For program point L522-3(line 522) no Hoare annotation was computed. [2019-10-15 01:03:32,752 INFO L443 ceAbstractionStarter]: For program point __uint32_identityFINAL(lines 176 180) no Hoare annotation was computed. [2019-10-15 01:03:32,752 INFO L443 ceAbstractionStarter]: For program point __uint32_identityENTRY(lines 176 180) no Hoare annotation was computed. [2019-10-15 01:03:32,752 INFO L443 ceAbstractionStarter]: For program point __uint32_identityEXIT(lines 176 180) no Hoare annotation was computed. [2019-10-15 01:03:32,763 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-15 01:03:32,764 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-15 01:03:32,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 01:03:32 BoogieIcfgContainer [2019-10-15 01:03:32,767 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 01:03:32,769 INFO L168 Benchmark]: Toolchain (without parser) took 3928.87 ms. Allocated memory was 137.9 MB in the beginning and 249.6 MB in the end (delta: 111.7 MB). Free memory was 100.7 MB in the beginning and 175.3 MB in the end (delta: -74.6 MB). Peak memory consumption was 37.1 MB. Max. memory is 7.1 GB. [2019-10-15 01:03:32,770 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 137.9 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-15 01:03:32,771 INFO L168 Benchmark]: CACSL2BoogieTranslator took 621.40 ms. Allocated memory was 137.9 MB in the beginning and 202.9 MB in the end (delta: 65.0 MB). Free memory was 100.5 MB in the beginning and 169.5 MB in the end (delta: -68.9 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. [2019-10-15 01:03:32,772 INFO L168 Benchmark]: Boogie Preprocessor took 87.39 ms. Allocated memory is still 202.9 MB. Free memory was 169.5 MB in the beginning and 166.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2019-10-15 01:03:32,773 INFO L168 Benchmark]: RCFGBuilder took 642.79 ms. Allocated memory is still 202.9 MB. Free memory was 166.5 MB in the beginning and 122.2 MB in the end (delta: 44.2 MB). Peak memory consumption was 44.2 MB. Max. memory is 7.1 GB. [2019-10-15 01:03:32,773 INFO L168 Benchmark]: TraceAbstraction took 2568.51 ms. Allocated memory was 202.9 MB in the beginning and 249.6 MB in the end (delta: 46.7 MB). Free memory was 122.2 MB in the beginning and 175.3 MB in the end (delta: -53.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-10-15 01:03:32,777 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 137.9 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 621.40 ms. Allocated memory was 137.9 MB in the beginning and 202.9 MB in the end (delta: 65.0 MB). Free memory was 100.5 MB in the beginning and 169.5 MB in the end (delta: -68.9 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 87.39 ms. Allocated memory is still 202.9 MB. Free memory was 169.5 MB in the beginning and 166.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 642.79 ms. Allocated memory is still 202.9 MB. Free memory was 166.5 MB in the beginning and 122.2 MB in the end (delta: 44.2 MB). Peak memory consumption was 44.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2568.51 ms. Allocated memory was 202.9 MB in the beginning and 249.6 MB in the end (delta: 46.7 MB). Free memory was 122.2 MB in the beginning and 175.3 MB in the end (delta: -53.1 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: 546]: 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: 514]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 525]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 541]: Loop Invariant [2019-10-15 01:03:32,785 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-15 01:03:32,786 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (a == p && a == p) && 3 == unknown-#memory_int-unknown[p][p] - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 51 locations, 1 error locations. Result: SAFE, OverallTime: 2.4s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 107 SDtfs, 45 SDslu, 159 SDs, 0 SdLazy, 142 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s 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, 5 MinimizatonAttempts, 36 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 17 PreInvPairs, 19 NumberOfFragments, 24 HoareAnnotationTreeSize, 17 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 128 NumberOfCodeBlocks, 128 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 145 ConstructedInterpolants, 9 QuantifiedInterpolants, 18041 SizeOfPredicates, 14 NumberOfNonLiveVariables, 99 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 4/10 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 129, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.9565217391304348, AVG_VARS_REMOVED_DURING_WEAKENING: 0.8260869565217391, AVG_WEAKENED_CONJUNCTS: 0.2608695652173913, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...