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 --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/list-ext2-properties/simple_and_skiplist_2lvl-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 02:58:14,423 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 02:58:14,425 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 02:58:14,446 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 02:58:14,446 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 02:58:14,448 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 02:58:14,450 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 02:58:14,459 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 02:58:14,461 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 02:58:14,463 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 02:58:14,464 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 02:58:14,464 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 02:58:14,465 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 02:58:14,468 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 02:58:14,469 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 02:58:14,470 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 02:58:14,471 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 02:58:14,472 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 02:58:14,474 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 02:58:14,477 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 02:58:14,479 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 02:58:14,482 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 02:58:14,484 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 02:58:14,485 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 02:58:14,488 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 02:58:14,489 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 02:58:14,489 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 02:58:14,490 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 02:58:14,492 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 02:58:14,493 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 02:58:14,494 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 02:58:14,494 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 02:58:14,495 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 02:58:14,496 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 02:58:14,499 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 02:58:14,499 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 02:58:14,500 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 02:58:14,500 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 02:58:14,500 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 02:58:14,501 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 02:58:14,502 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 02:58:14,504 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 02:58:14,537 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 02:58:14,537 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 02:58:14,542 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 02:58:14,542 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 02:58:14,542 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 02:58:14,542 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 02:58:14,542 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 02:58:14,543 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 02:58:14,543 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 02:58:14,543 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 02:58:14,545 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 02:58:14,545 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 02:58:14,546 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 02:58:14,546 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 02:58:14,546 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 02:58:14,546 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 02:58:14,546 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 02:58:14,547 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 02:58:14,547 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 02:58:14,547 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 02:58:14,547 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 02:58:14,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 02:58:14,548 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 02:58:14,548 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 02:58:14,548 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 02:58:14,548 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 02:58:14,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 02:58:14,549 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 02:58:14,549 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-15 02:58:14,834 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 02:58:14,850 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 02:58:14,854 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 02:58:14,856 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 02:58:14,856 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 02:58:14,857 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext2-properties/simple_and_skiplist_2lvl-2.i [2019-10-15 02:58:14,930 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97b31a5bd/96c71fd0f25b459d97c10cc443bdc1df/FLAG2ae57ddc5 [2019-10-15 02:58:15,478 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 02:58:15,479 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-ext2-properties/simple_and_skiplist_2lvl-2.i [2019-10-15 02:58:15,493 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97b31a5bd/96c71fd0f25b459d97c10cc443bdc1df/FLAG2ae57ddc5 [2019-10-15 02:58:15,816 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97b31a5bd/96c71fd0f25b459d97c10cc443bdc1df [2019-10-15 02:58:15,825 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 02:58:15,827 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 02:58:15,829 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 02:58:15,829 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 02:58:15,832 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 02:58:15,833 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:58:15" (1/1) ... [2019-10-15 02:58:15,836 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28b02a74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:58:15, skipping insertion in model container [2019-10-15 02:58:15,837 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:58:15" (1/1) ... [2019-10-15 02:58:15,845 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 02:58:15,899 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 02:58:16,414 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 02:58:16,431 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 02:58:16,478 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 02:58:16,538 INFO L192 MainTranslator]: Completed translation [2019-10-15 02:58:16,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:58:16 WrapperNode [2019-10-15 02:58:16,539 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 02:58:16,539 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 02:58:16,540 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 02:58:16,540 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 02:58:16,555 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:58:16" (1/1) ... [2019-10-15 02:58:16,555 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:58:16" (1/1) ... [2019-10-15 02:58:16,572 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:58:16" (1/1) ... [2019-10-15 02:58:16,573 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:58:16" (1/1) ... [2019-10-15 02:58:16,595 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:58:16" (1/1) ... [2019-10-15 02:58:16,601 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:58:16" (1/1) ... [2019-10-15 02:58:16,605 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:58:16" (1/1) ... [2019-10-15 02:58:16,612 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 02:58:16,613 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 02:58:16,613 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 02:58:16,613 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 02:58:16,614 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:58:16" (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 02:58:16,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 02:58:16,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 02:58:16,684 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-15 02:58:16,684 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-15 02:58:16,684 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-10-15 02:58:16,684 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die [2019-10-15 02:58:16,685 INFO L138 BoogieDeclarations]: Found implementation of procedure create_sl_with_head_and_tail [2019-10-15 02:58:16,685 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_random_insert [2019-10-15 02:58:16,685 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_sl [2019-10-15 02:58:16,685 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 02:58:16,685 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 02:58:16,686 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 02:58:16,686 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-15 02:58:16,686 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-15 02:58:16,686 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-15 02:58:16,686 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-15 02:58:16,686 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-15 02:58:16,687 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-15 02:58:16,687 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-15 02:58:16,687 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-15 02:58:16,687 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-15 02:58:16,687 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-15 02:58:16,687 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-15 02:58:16,688 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-15 02:58:16,688 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-15 02:58:16,688 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-15 02:58:16,688 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-15 02:58:16,688 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-15 02:58:16,688 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-15 02:58:16,689 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-15 02:58:16,689 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-15 02:58:16,689 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-15 02:58:16,689 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-15 02:58:16,689 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-15 02:58:16,690 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-15 02:58:16,690 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-15 02:58:16,690 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-15 02:58:16,690 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-15 02:58:16,690 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-15 02:58:16,690 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-15 02:58:16,690 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-15 02:58:16,691 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-15 02:58:16,691 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-15 02:58:16,691 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-15 02:58:16,691 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-15 02:58:16,691 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-15 02:58:16,691 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-15 02:58:16,691 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-15 02:58:16,691 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-15 02:58:16,692 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-15 02:58:16,692 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-15 02:58:16,692 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-15 02:58:16,692 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-15 02:58:16,692 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-15 02:58:16,692 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-15 02:58:16,692 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-15 02:58:16,693 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-15 02:58:16,693 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-15 02:58:16,693 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-15 02:58:16,693 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-15 02:58:16,693 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-15 02:58:16,693 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-15 02:58:16,694 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-15 02:58:16,694 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-15 02:58:16,694 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 02:58:16,694 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-15 02:58:16,694 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-15 02:58:16,694 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 02:58:16,694 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-15 02:58:16,695 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-15 02:58:16,695 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-15 02:58:16,695 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-15 02:58:16,695 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-15 02:58:16,695 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-15 02:58:16,695 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-15 02:58:16,695 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-15 02:58:16,696 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-15 02:58:16,696 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 02:58:16,696 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-15 02:58:16,696 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-15 02:58:16,696 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-15 02:58:16,696 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-15 02:58:16,697 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-15 02:58:16,697 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-15 02:58:16,697 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-15 02:58:16,697 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-15 02:58:16,697 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-15 02:58:16,697 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-15 02:58:16,698 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-15 02:58:16,698 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-15 02:58:16,698 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-15 02:58:16,698 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-15 02:58:16,698 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-15 02:58:16,698 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-15 02:58:16,698 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-15 02:58:16,699 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-15 02:58:16,699 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-15 02:58:16,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-15 02:58:16,699 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-15 02:58:16,699 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-15 02:58:16,699 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-15 02:58:16,699 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-15 02:58:16,699 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-15 02:58:16,700 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-15 02:58:16,700 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-15 02:58:16,700 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-15 02:58:16,700 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-15 02:58:16,700 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-15 02:58:16,700 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-15 02:58:16,700 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-15 02:58:16,701 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-15 02:58:16,701 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-15 02:58:16,701 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-15 02:58:16,701 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-15 02:58:16,701 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-15 02:58:16,701 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-15 02:58:16,701 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-15 02:58:16,702 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-10-15 02:58:16,702 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die [2019-10-15 02:58:16,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 02:58:16,702 INFO L130 BoogieDeclarations]: Found specification of procedure create_sl_with_head_and_tail [2019-10-15 02:58:16,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 02:58:16,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 02:58:16,702 INFO L130 BoogieDeclarations]: Found specification of procedure sl_random_insert [2019-10-15 02:58:16,703 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_sl [2019-10-15 02:58:16,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 02:58:16,703 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 02:58:16,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 02:58:16,703 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 02:58:16,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 02:58:16,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 02:58:17,018 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-10-15 02:58:17,649 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 02:58:17,650 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-15 02:58:17,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:58:17 BoogieIcfgContainer [2019-10-15 02:58:17,651 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 02:58:17,653 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 02:58:17,653 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 02:58:17,656 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 02:58:17,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:58:15" (1/3) ... [2019-10-15 02:58:17,657 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f954cf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:58:17, skipping insertion in model container [2019-10-15 02:58:17,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:58:16" (2/3) ... [2019-10-15 02:58:17,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f954cf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:58:17, skipping insertion in model container [2019-10-15 02:58:17,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:58:17" (3/3) ... [2019-10-15 02:58:17,660 INFO L109 eAbstractionObserver]: Analyzing ICFG simple_and_skiplist_2lvl-2.i [2019-10-15 02:58:17,671 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 02:58:17,680 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 02:58:17,691 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 02:58:17,719 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 02:58:17,719 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 02:58:17,719 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 02:58:17,720 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 02:58:17,720 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 02:58:17,720 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 02:58:17,720 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 02:58:17,720 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 02:58:17,738 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-10-15 02:58:17,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-15 02:58:17,744 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:58:17,745 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:58:17,747 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:58:17,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:58:17,753 INFO L82 PathProgramCache]: Analyzing trace with hash 1485717068, now seen corresponding path program 1 times [2019-10-15 02:58:17,762 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:58:17,762 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607935676] [2019-10-15 02:58:17,763 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:58:17,763 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:58:17,763 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:58:17,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:58:17,904 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 02:58:17,905 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607935676] [2019-10-15 02:58:17,906 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:58:17,906 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 02:58:17,906 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838341836] [2019-10-15 02:58:17,911 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 02:58:17,911 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:58:17,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 02:58:17,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 02:58:17,928 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 2 states. [2019-10-15 02:58:17,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:58:17,955 INFO L93 Difference]: Finished difference Result 77 states and 101 transitions. [2019-10-15 02:58:17,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 02:58:17,956 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2019-10-15 02:58:17,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:58:17,964 INFO L225 Difference]: With dead ends: 77 [2019-10-15 02:58:17,964 INFO L226 Difference]: Without dead ends: 17 [2019-10-15 02:58:17,967 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 02:58:17,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-10-15 02:58:18,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-10-15 02:58:18,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-10-15 02:58:18,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2019-10-15 02:58:18,009 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 12 [2019-10-15 02:58:18,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:58:18,009 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2019-10-15 02:58:18,010 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 02:58:18,010 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2019-10-15 02:58:18,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-15 02:58:18,011 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:58:18,011 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:58:18,012 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:58:18,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:58:18,013 INFO L82 PathProgramCache]: Analyzing trace with hash -1630048670, now seen corresponding path program 1 times [2019-10-15 02:58:18,013 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:58:18,013 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756210485] [2019-10-15 02:58:18,014 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:58:18,014 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:58:18,014 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:58:18,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:58:18,142 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 02:58:18,142 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756210485] [2019-10-15 02:58:18,144 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:58:18,145 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 02:58:18,145 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389839705] [2019-10-15 02:58:18,147 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 02:58:18,148 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:58:18,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 02:58:18,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 02:58:18,148 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 5 states. [2019-10-15 02:58:18,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:58:18,235 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2019-10-15 02:58:18,235 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 02:58:18,235 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2019-10-15 02:58:18,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:58:18,236 INFO L225 Difference]: With dead ends: 32 [2019-10-15 02:58:18,237 INFO L226 Difference]: Without dead ends: 30 [2019-10-15 02:58:18,238 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 02:58:18,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-10-15 02:58:18,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 22. [2019-10-15 02:58:18,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-10-15 02:58:18,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2019-10-15 02:58:18,244 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 13 [2019-10-15 02:58:18,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:58:18,244 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2019-10-15 02:58:18,245 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 02:58:18,245 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2019-10-15 02:58:18,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-15 02:58:18,245 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:58:18,246 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:58:18,246 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:58:18,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:58:18,246 INFO L82 PathProgramCache]: Analyzing trace with hash -1874817408, now seen corresponding path program 1 times [2019-10-15 02:58:18,247 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:58:18,247 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212554474] [2019-10-15 02:58:18,247 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:58:18,247 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:58:18,247 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:58:18,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:58:18,466 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 02:58:18,467 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212554474] [2019-10-15 02:58:18,467 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1129126794] [2019-10-15 02:58:18,467 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 02:58:18,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:58:18,608 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 19 conjunts are in the unsatisfiable core [2019-10-15 02:58:18,617 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 02:58:18,714 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 02:58:18,715 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 02:58:18,725 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 02:58:18,731 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 02:58:18,731 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-15 02:58:18,741 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 02:58:18,742 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-15 02:58:18,742 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:18 [2019-10-15 02:58:18,761 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 15 treesize of output 7 [2019-10-15 02:58:18,762 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 02:58:18,770 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 02:58:18,774 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 15 treesize of output 7 [2019-10-15 02:58:18,776 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-15 02:58:18,780 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 02:58:18,781 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-15 02:58:18,781 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:7 [2019-10-15 02:58:18,784 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 02:58:18,786 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 02:58:18,834 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 35 treesize of output 29 [2019-10-15 02:58:18,836 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2019-10-15 02:58:18,849 INFO L567 ElimStorePlain]: treesize reduction 19, result has 36.7 percent of original size [2019-10-15 02:58:18,849 INFO L464 ElimStorePlain]: Eliminatee |v_#memory_$Pointer$.offset_57| vanished before elimination [2019-10-15 02:58:18,850 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2019-10-15 02:58:18,851 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:39, output treesize:11 [2019-10-15 02:58:18,872 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 02:58:18,872 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [860843855] [2019-10-15 02:58:18,914 INFO L162 IcfgInterpreter]: Started Sifa with 15 locations of interest [2019-10-15 02:58:18,915 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 02:58:18,922 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 02:58:18,934 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 02:58:18,935 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 02:58:19,084 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 27 for LOIs [2019-10-15 02:58:19,586 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 10 for LOIs [2019-10-15 02:58:19,593 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-15 02:58:20,049 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2019-10-15 02:58:20,279 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 54 [2019-10-15 02:58:24,550 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-15 02:58:24,550 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [6, 6, 5] total 17 [2019-10-15 02:58:24,550 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979719286] [2019-10-15 02:58:24,551 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-15 02:58:24,551 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:58:24,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-15 02:58:24,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=211, Unknown=2, NotChecked=0, Total=272 [2019-10-15 02:58:24,554 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand 11 states. [2019-10-15 02:58:29,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:58:29,935 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions. [2019-10-15 02:58:29,941 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-15 02:58:29,941 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 16 [2019-10-15 02:58:29,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:58:29,942 INFO L225 Difference]: With dead ends: 24 [2019-10-15 02:58:29,942 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 02:58:29,943 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 33 SyntacticMatches, 6 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=65, Invalid=239, Unknown=2, NotChecked=0, Total=306 [2019-10-15 02:58:29,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 02:58:29,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 02:58:29,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 02:58:29,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 02:58:29,945 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2019-10-15 02:58:29,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:58:29,945 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 02:58:29,945 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-15 02:58:29,945 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 02:58:29,945 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 02:58:30,151 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 02:58:30,158 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 02:58:31,257 WARN L191 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 140 DAG size of output: 19 [2019-10-15 02:58:31,394 INFO L443 ceAbstractionStarter]: For program point L564-3(lines 564 565) no Hoare annotation was computed. [2019-10-15 02:58:31,395 INFO L446 ceAbstractionStarter]: At program point L564-5(lines 564 565) the Hoare annotation is: true [2019-10-15 02:58:31,395 INFO L443 ceAbstractionStarter]: For program point L564-6(lines 564 565) no Hoare annotation was computed. [2019-10-15 02:58:31,395 INFO L446 ceAbstractionStarter]: At program point sl_random_insertENTRY(lines 556 573) the Hoare annotation is: true [2019-10-15 02:58:31,395 INFO L443 ceAbstractionStarter]: For program point sl_random_insertEXIT(lines 556 573) no Hoare annotation was computed. [2019-10-15 02:58:31,396 INFO L443 ceAbstractionStarter]: For program point L561-3(lines 561 562) no Hoare annotation was computed. [2019-10-15 02:58:31,396 INFO L446 ceAbstractionStarter]: At program point L561-5(lines 561 562) the Hoare annotation is: true [2019-10-15 02:58:31,396 INFO L443 ceAbstractionStarter]: For program point L561-6(lines 561 562) no Hoare annotation was computed. [2019-10-15 02:58:31,396 INFO L443 ceAbstractionStarter]: For program point create_sl_with_head_and_tailEXIT(lines 547 555) no Hoare annotation was computed. [2019-10-15 02:58:31,396 INFO L446 ceAbstractionStarter]: At program point create_sl_with_head_and_tailENTRY(lines 547 555) the Hoare annotation is: true [2019-10-15 02:58:31,396 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |old(#NULL.base)| |#NULL.base|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-15 02:58:31,397 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 02:58:31,397 INFO L446 ceAbstractionStarter]: At program point myexitENTRY(lines 529 531) the Hoare annotation is: true [2019-10-15 02:58:31,397 INFO L443 ceAbstractionStarter]: For program point myexitEXIT(lines 529 531) no Hoare annotation was computed. [2019-10-15 02:58:31,397 INFO L446 ceAbstractionStarter]: At program point L530(line 530) the Hoare annotation is: true [2019-10-15 02:58:31,397 INFO L443 ceAbstractionStarter]: For program point __bswap_32ENTRY(lines 175 179) no Hoare annotation was computed. [2019-10-15 02:58:31,397 INFO L443 ceAbstractionStarter]: For program point __bswap_32EXIT(lines 175 179) no Hoare annotation was computed. [2019-10-15 02:58:31,398 INFO L443 ceAbstractionStarter]: For program point L577-1(lines 577 581) no Hoare annotation was computed. [2019-10-15 02:58:31,399 INFO L446 ceAbstractionStarter]: At program point L577-3(lines 577 581) the Hoare annotation is: true [2019-10-15 02:58:31,400 INFO L443 ceAbstractionStarter]: For program point L577-4(lines 577 581) no Hoare annotation was computed. [2019-10-15 02:58:31,401 INFO L446 ceAbstractionStarter]: At program point destroy_slENTRY(lines 574 583) the Hoare annotation is: true [2019-10-15 02:58:31,401 INFO L443 ceAbstractionStarter]: For program point destroy_slEXIT(lines 574 583) no Hoare annotation was computed. [2019-10-15 02:58:31,401 INFO L443 ceAbstractionStarter]: For program point __bswap_64ENTRY(lines 180 184) no Hoare annotation was computed. [2019-10-15 02:58:31,401 INFO L443 ceAbstractionStarter]: For program point __bswap_64EXIT(lines 180 184) no Hoare annotation was computed. [2019-10-15 02:58:31,401 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 02:58:31,401 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (<= |#NULL.base| 0) (= 0 (select |#valid| 0)) (<= 0 |#NULL.base|) (<= |#NULL.offset| 0) (<= 0 |#NULL.offset|)) [2019-10-15 02:58:31,402 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 02:58:31,402 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 02:58:31,402 INFO L443 ceAbstractionStarter]: For program point L605(line 605) no Hoare annotation was computed. [2019-10-15 02:58:31,402 INFO L443 ceAbstractionStarter]: For program point L601(line 601) no Hoare annotation was computed. [2019-10-15 02:58:31,402 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 584 610) no Hoare annotation was computed. [2019-10-15 02:58:31,402 INFO L443 ceAbstractionStarter]: For program point L589-1(lines 589 595) no Hoare annotation was computed. [2019-10-15 02:58:31,402 INFO L439 ceAbstractionStarter]: At program point L589-3(lines 589 595) the Hoare annotation is: (or (not (<= |#NULL.offset| 0)) (= 0 (select |#valid| 0)) (not (<= 0 |#NULL.base|)) (not (= 0 (select |old(#valid)| 0))) (not (<= 0 |#NULL.offset|)) (not (<= |#NULL.base| 0))) [2019-10-15 02:58:31,403 INFO L443 ceAbstractionStarter]: For program point L589-4(lines 589 595) no Hoare annotation was computed. [2019-10-15 02:58:31,403 INFO L443 ceAbstractionStarter]: For program point L606-1(lines 606 607) no Hoare annotation was computed. [2019-10-15 02:58:31,403 INFO L446 ceAbstractionStarter]: At program point L606-3(lines 606 607) the Hoare annotation is: true [2019-10-15 02:58:31,403 INFO L443 ceAbstractionStarter]: For program point L586(line 586) no Hoare annotation was computed. [2019-10-15 02:58:31,403 INFO L446 ceAbstractionStarter]: At program point L586-1(line 586) the Hoare annotation is: true [2019-10-15 02:58:31,403 INFO L443 ceAbstractionStarter]: For program point L586-3(line 586) no Hoare annotation was computed. [2019-10-15 02:58:31,403 INFO L446 ceAbstractionStarter]: At program point L607(line 607) the Hoare annotation is: true [2019-10-15 02:58:31,403 INFO L446 ceAbstractionStarter]: At program point L607-1(lines 606 607) the Hoare annotation is: true [2019-10-15 02:58:31,404 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 601) no Hoare annotation was computed. [2019-10-15 02:58:31,404 INFO L439 ceAbstractionStarter]: At program point L599-2(lines 599 604) the Hoare annotation is: (or (not (<= |#NULL.offset| 0)) (= 0 (select |#valid| 0)) (not (<= 0 |#NULL.base|)) (not (= 0 (select |old(#valid)| 0))) (not (<= 0 |#NULL.offset|)) (not (<= |#NULL.base| 0))) [2019-10-15 02:58:31,404 INFO L446 ceAbstractionStarter]: At program point L599-3(lines 599 604) the Hoare annotation is: true [2019-10-15 02:58:31,405 INFO L443 ceAbstractionStarter]: For program point L608(line 608) no Hoare annotation was computed. [2019-10-15 02:58:31,405 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 584 610) the Hoare annotation is: (or (not (<= |#NULL.offset| 0)) (and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) (not (<= 0 |#NULL.base|)) (not (= 0 (select |old(#valid)| 0))) (not (<= 0 |#NULL.offset|)) (not (<= |#NULL.base| 0))) [2019-10-15 02:58:31,405 INFO L443 ceAbstractionStarter]: For program point L600(lines 600 602) no Hoare annotation was computed. [2019-10-15 02:58:31,405 INFO L443 ceAbstractionStarter]: For program point L600-2(lines 600 602) no Hoare annotation was computed. [2019-10-15 02:58:31,405 INFO L443 ceAbstractionStarter]: For program point L592(line 592) no Hoare annotation was computed. [2019-10-15 02:58:31,405 INFO L446 ceAbstractionStarter]: At program point L592-1(line 592) the Hoare annotation is: true [2019-10-15 02:58:31,405 INFO L443 ceAbstractionStarter]: For program point L592-3(line 592) no Hoare annotation was computed. [2019-10-15 02:58:31,406 INFO L443 ceAbstractionStarter]: For program point alloc_or_dieEXIT(lines 542 546) no Hoare annotation was computed. [2019-10-15 02:58:31,406 INFO L443 ceAbstractionStarter]: For program point alloc_or_dieENTRY(lines 542 546) no Hoare annotation was computed. [2019-10-15 02:58:31,423 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 02:58:31,424 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 02:58:31,425 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 02:58:31,425 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 02:58:31,427 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 02:58:31,427 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 02:58:31,427 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 02:58:31,427 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 02:58:31,428 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 02:58:31,428 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 02:58:31,429 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 02:58:31,429 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 02:58:31,430 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 02:58:31,431 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 02:58:31,431 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 02:58:31,435 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 02:58:31,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 02:58:31 BoogieIcfgContainer [2019-10-15 02:58:31,446 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 02:58:31,448 INFO L168 Benchmark]: Toolchain (without parser) took 15620.84 ms. Allocated memory was 139.5 MB in the beginning and 246.4 MB in the end (delta: 107.0 MB). Free memory was 102.8 MB in the beginning and 103.4 MB in the end (delta: -576.4 kB). Peak memory consumption was 106.4 MB. Max. memory is 7.1 GB. [2019-10-15 02:58:31,448 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 139.5 MB. Free memory was 122.7 MB in the beginning and 122.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-15 02:58:31,450 INFO L168 Benchmark]: CACSL2BoogieTranslator took 710.33 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 102.6 MB in the beginning and 166.8 MB in the end (delta: -64.3 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. [2019-10-15 02:58:31,450 INFO L168 Benchmark]: Boogie Preprocessor took 72.94 ms. Allocated memory is still 203.9 MB. Free memory was 166.8 MB in the beginning and 163.5 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. [2019-10-15 02:58:31,453 INFO L168 Benchmark]: RCFGBuilder took 1038.87 ms. Allocated memory was 203.9 MB in the beginning and 235.9 MB in the end (delta: 32.0 MB). Free memory was 163.5 MB in the beginning and 207.7 MB in the end (delta: -44.2 MB). Peak memory consumption was 77.3 MB. Max. memory is 7.1 GB. [2019-10-15 02:58:31,462 INFO L168 Benchmark]: TraceAbstraction took 13793.07 ms. Allocated memory was 235.9 MB in the beginning and 246.4 MB in the end (delta: 10.5 MB). Free memory was 207.7 MB in the beginning and 105.3 MB in the end (delta: 102.4 MB). Peak memory consumption was 112.9 MB. Max. memory is 7.1 GB. [2019-10-15 02:58:31,465 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 139.5 MB. Free memory was 122.7 MB in the beginning and 122.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 710.33 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 102.6 MB in the beginning and 166.8 MB in the end (delta: -64.3 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 72.94 ms. Allocated memory is still 203.9 MB. Free memory was 166.8 MB in the beginning and 163.5 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1038.87 ms. Allocated memory was 203.9 MB in the beginning and 235.9 MB in the end (delta: 32.0 MB). Free memory was 163.5 MB in the beginning and 207.7 MB in the end (delta: -44.2 MB). Peak memory consumption was 77.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 13793.07 ms. Allocated memory was 235.9 MB in the beginning and 246.4 MB in the end (delta: 10.5 MB). Free memory was 207.7 MB in the beginning and 105.3 MB in the end (delta: 102.4 MB). Peak memory consumption was 112.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 601]: 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: 530]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 564]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 599]: Loop Invariant [2019-10-15 02:58:31,481 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 02:58:31,481 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 02:58:31,481 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 02:58:31,483 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 02:58:31,483 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 02:58:31,484 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 02:58:31,484 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 02:58:31,484 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL Derived loop invariant: ((((!(#NULL <= 0) || 0 == \valid[0]) || !(0 <= #NULL)) || !(0 == \old(\valid)[0])) || !(0 <= #NULL)) || !(#NULL <= 0) - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 561]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 577]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 589]: Loop Invariant [2019-10-15 02:58:31,485 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 02:58:31,485 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 02:58:31,488 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 02:58:31,489 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 02:58:31,489 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 02:58:31,489 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 02:58:31,490 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 02:58:31,490 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL Derived loop invariant: ((((!(#NULL <= 0) || 0 == \valid[0]) || !(0 <= #NULL)) || !(0 == \old(\valid)[0])) || !(0 <= #NULL)) || !(#NULL <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 53 locations, 1 error locations. Result: SAFE, OverallTime: 13.6s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 5.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, HoareTripleCheckerStatistics: 74 SDtfs, 25 SDslu, 53 SDs, 0 SdLazy, 93 SolverSat, 17 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 5.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 37 SyntacticMatches, 6 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 5.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred 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, 3 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 20 LocationsWithAnnotation, 28 PreInvPairs, 37 NumberOfFragments, 138 HoareAnnotationTreeSize, 28 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 20 FomulaSimplificationsInter, 1470 FormulaSimplificationTreeSizeReductionInter, 1.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 5422 SizeOfPredicates, 7 NumberOfNonLiveVariables, 74 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 3/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: OVERALL_TIME[ms]: 679, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 27, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 18, TOOLS_POST_TIME[ms]: 181, TOOLS_POST_CALL_APPLICATIONS: 4, TOOLS_POST_CALL_TIME[ms]: 8, TOOLS_POST_RETURN_APPLICATIONS: 2, TOOLS_POST_RETURN_TIME[ms]: 2, TOOLS_QUANTIFIERELIM_APPLICATIONS: 24, TOOLS_QUANTIFIERELIM_TIME[ms]: 180, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 86, FLUID_QUERY_TIME[ms]: 3, FLUID_QUERIES: 28, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 23, DOMAIN_JOIN_TIME[ms]: 390, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME[ms]: 0, DOMAIN_ISSUBSETEQ_APPLICATIONS: 1, DOMAIN_ISSUBSETEQ_TIME[ms]: 14, DOMAIN_ISBOTTOM_APPLICATIONS: 3, DOMAIN_ISBOTTOM_TIME[ms]: 10, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 48, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 47, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 1, CALL_SUMMARIZER_APPLICATIONS: 2, CALL_SUMMARIZER_CACHE_MISSES: 1, CALL_SUMMARIZER_OVERALL_TIME[ms]: 40, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 40, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 8, PATH_EXPR_TIME[ms]: 4, REGEX_TO_DAG_TIME[ms]: 3, DAG_COMPRESSION_TIME[ms]: 14, DAG_COMPRESSION_PROCESSED_NODES: 146, DAG_COMPRESSION_RETAINED_NODES: 50, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...