java -ea -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/list-ext2-properties/simple_and_skiplist_2lvl_false-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-18e5b2d-m [2018-11-18 21:58:08,541 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 21:58:08,543 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 21:58:08,555 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 21:58:08,556 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 21:58:08,557 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 21:58:08,558 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 21:58:08,560 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 21:58:08,561 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 21:58:08,562 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 21:58:08,563 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 21:58:08,563 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 21:58:08,564 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 21:58:08,565 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 21:58:08,567 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 21:58:08,567 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 21:58:08,568 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 21:58:08,570 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 21:58:08,575 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 21:58:08,580 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 21:58:08,582 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 21:58:08,583 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 21:58:08,585 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 21:58:08,585 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 21:58:08,585 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 21:58:08,586 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 21:58:08,587 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 21:58:08,588 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 21:58:08,589 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 21:58:08,590 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 21:58:08,590 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 21:58:08,590 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 21:58:08,591 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 21:58:08,591 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 21:58:08,593 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 21:58:08,594 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 21:58:08,594 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-18 21:58:08,613 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 21:58:08,613 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 21:58:08,615 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 21:58:08,615 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 21:58:08,616 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 21:58:08,616 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 21:58:08,617 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 21:58:08,617 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 21:58:08,617 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 21:58:08,617 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 21:58:08,617 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 21:58:08,617 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 21:58:08,618 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 21:58:08,618 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 21:58:08,618 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 21:58:08,618 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 21:58:08,618 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 21:58:08,620 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 21:58:08,620 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 21:58:08,620 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 21:58:08,621 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 21:58:08,621 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 21:58:08,621 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 21:58:08,622 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 21:58:08,622 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 21:58:08,622 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 21:58:08,622 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 21:58:08,622 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 21:58:08,623 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-18 21:58:08,623 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 21:58:08,623 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 21:58:08,623 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 21:58:08,623 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 21:58:08,676 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 21:58:08,690 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 21:58:08,695 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 21:58:08,698 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 21:58:08,698 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 21:58:08,699 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext2-properties/simple_and_skiplist_2lvl_false-unreach-call.i [2018-11-18 21:58:08,759 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ebe748ed/9cf3e72f5a1047289214a88518f3d0f5/FLAG597963112 [2018-11-18 21:58:09,294 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 21:58:09,295 INFO L161 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-ext2-properties/simple_and_skiplist_2lvl_false-unreach-call.i [2018-11-18 21:58:09,314 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ebe748ed/9cf3e72f5a1047289214a88518f3d0f5/FLAG597963112 [2018-11-18 21:58:09,550 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ebe748ed/9cf3e72f5a1047289214a88518f3d0f5 [2018-11-18 21:58:09,559 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 21:58:09,561 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-11-18 21:58:09,562 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 21:58:09,562 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 21:58:09,566 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 21:58:09,567 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:58:09" (1/1) ... [2018-11-18 21:58:09,570 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79fe73c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:58:09, skipping insertion in model container [2018-11-18 21:58:09,571 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:58:09" (1/1) ... [2018-11-18 21:58:09,582 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 21:58:09,644 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 21:58:10,043 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 21:58:10,058 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 21:58:10,125 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 21:58:10,211 INFO L195 MainTranslator]: Completed translation [2018-11-18 21:58:10,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:58:10 WrapperNode [2018-11-18 21:58:10,212 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 21:58:10,213 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 21:58:10,213 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 21:58:10,214 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 21:58:10,306 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:58:10" (1/1) ... [2018-11-18 21:58:10,307 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:58:10" (1/1) ... [2018-11-18 21:58:10,345 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:58:10" (1/1) ... [2018-11-18 21:58:10,346 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:58:10" (1/1) ... [2018-11-18 21:58:10,404 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:58:10" (1/1) ... [2018-11-18 21:58:10,412 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:58:10" (1/1) ... [2018-11-18 21:58:10,417 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:58:10" (1/1) ... [2018-11-18 21:58:10,437 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 21:58:10,438 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 21:58:10,438 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 21:58:10,438 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 21:58:10,439 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:58:10" (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 [2018-11-18 21:58:10,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 21:58:10,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 21:58:10,500 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2018-11-18 21:58:10,500 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2018-11-18 21:58:10,501 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die [2018-11-18 21:58:10,501 INFO L138 BoogieDeclarations]: Found implementation of procedure create_sl_with_head_and_tail [2018-11-18 21:58:10,501 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_random_insert [2018-11-18 21:58:10,501 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_sl [2018-11-18 21:58:10,501 INFO L138 BoogieDeclarations]: Found implementation of procedure exit [2018-11-18 21:58:10,501 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 21:58:10,502 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 21:58:10,502 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-18 21:58:10,502 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-11-18 21:58:10,502 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-11-18 21:58:10,502 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-11-18 21:58:10,503 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-11-18 21:58:10,503 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-11-18 21:58:10,503 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-11-18 21:58:10,503 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-11-18 21:58:10,503 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-11-18 21:58:10,503 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-11-18 21:58:10,504 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-11-18 21:58:10,504 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-11-18 21:58:10,504 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-11-18 21:58:10,504 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-11-18 21:58:10,504 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-11-18 21:58:10,504 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-11-18 21:58:10,504 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-11-18 21:58:10,504 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2018-11-18 21:58:10,504 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2018-11-18 21:58:10,504 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-11-18 21:58:10,505 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-11-18 21:58:10,505 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-11-18 21:58:10,505 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-11-18 21:58:10,505 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-11-18 21:58:10,505 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-18 21:58:10,505 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-11-18 21:58:10,505 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-11-18 21:58:10,505 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-11-18 21:58:10,506 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-11-18 21:58:10,506 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-11-18 21:58:10,506 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-11-18 21:58:10,506 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-11-18 21:58:10,506 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-11-18 21:58:10,506 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-11-18 21:58:10,506 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-11-18 21:58:10,506 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-11-18 21:58:10,506 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-11-18 21:58:10,507 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-11-18 21:58:10,507 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-11-18 21:58:10,507 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-11-18 21:58:10,507 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-11-18 21:58:10,507 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-11-18 21:58:10,507 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-11-18 21:58:10,507 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-11-18 21:58:10,507 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-11-18 21:58:10,507 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-11-18 21:58:10,508 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-11-18 21:58:10,508 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-11-18 21:58:10,508 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-11-18 21:58:10,508 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-11-18 21:58:10,508 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-11-18 21:58:10,508 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-11-18 21:58:10,508 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-11-18 21:58:10,508 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-18 21:58:10,509 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-18 21:58:10,509 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-18 21:58:10,509 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-18 21:58:10,509 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-18 21:58:10,509 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-18 21:58:10,509 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-18 21:58:10,509 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-11-18 21:58:10,510 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2018-11-18 21:58:10,510 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-11-18 21:58:10,510 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-11-18 21:58:10,510 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2018-11-18 21:58:10,510 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-11-18 21:58:10,510 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-18 21:58:10,511 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2018-11-18 21:58:10,511 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-11-18 21:58:10,511 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-11-18 21:58:10,511 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-11-18 21:58:10,511 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-11-18 21:58:10,512 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-11-18 21:58:10,512 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-11-18 21:58:10,512 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-11-18 21:58:10,512 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-11-18 21:58:10,512 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-11-18 21:58:10,512 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-11-18 21:58:10,513 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-11-18 21:58:10,513 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-11-18 21:58:10,513 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-18 21:58:10,513 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-11-18 21:58:10,513 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-11-18 21:58:10,514 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-11-18 21:58:10,514 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-11-18 21:58:10,514 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-11-18 21:58:10,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-11-18 21:58:10,514 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-11-18 21:58:10,514 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-11-18 21:58:10,515 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-11-18 21:58:10,515 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-11-18 21:58:10,515 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-11-18 21:58:10,515 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-11-18 21:58:10,515 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-11-18 21:58:10,515 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-11-18 21:58:10,516 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-11-18 21:58:10,516 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-11-18 21:58:10,516 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-11-18 21:58:10,516 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-11-18 21:58:10,516 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-11-18 21:58:10,516 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-11-18 21:58:10,517 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-11-18 21:58:10,517 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-11-18 21:58:10,517 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-11-18 21:58:10,517 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-11-18 21:58:10,517 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-11-18 21:58:10,517 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die [2018-11-18 21:58:10,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 21:58:10,518 INFO L130 BoogieDeclarations]: Found specification of procedure create_sl_with_head_and_tail [2018-11-18 21:58:10,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-18 21:58:10,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-18 21:58:10,518 INFO L130 BoogieDeclarations]: Found specification of procedure sl_random_insert [2018-11-18 21:58:10,518 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_sl [2018-11-18 21:58:10,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 21:58:10,519 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 21:58:10,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 21:58:10,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 21:58:10,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 21:58:10,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 21:58:10,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-11-18 21:58:12,172 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 21:58:12,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:58:12 BoogieIcfgContainer [2018-11-18 21:58:12,173 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 21:58:12,173 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 21:58:12,174 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 21:58:12,177 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 21:58:12,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:58:09" (1/3) ... [2018-11-18 21:58:12,178 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7721cf53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:58:12, skipping insertion in model container [2018-11-18 21:58:12,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:58:10" (2/3) ... [2018-11-18 21:58:12,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7721cf53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:58:12, skipping insertion in model container [2018-11-18 21:58:12,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:58:12" (3/3) ... [2018-11-18 21:58:12,181 INFO L112 eAbstractionObserver]: Analyzing ICFG simple_and_skiplist_2lvl_false-unreach-call.i [2018-11-18 21:58:12,191 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 21:58:12,200 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 21:58:12,218 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 21:58:12,256 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 21:58:12,257 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 21:58:12,257 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 21:58:12,257 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 21:58:12,257 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 21:58:12,258 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 21:58:12,258 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 21:58:12,258 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 21:58:12,258 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 21:58:12,278 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2018-11-18 21:58:12,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-18 21:58:12,284 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 21:58:12,285 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 21:58:12,288 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 21:58:12,295 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 21:58:12,295 INFO L82 PathProgramCache]: Analyzing trace with hash 1769983518, now seen corresponding path program 1 times [2018-11-18 21:58:12,301 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 21:58:12,301 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 21:58:12,327 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 21:58:12,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:58:12,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:58:12,412 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 21:58:12,481 INFO L256 TraceCheckUtils]: 0: Hoare triple {59#true} call ULTIMATE.init(); {59#true} is VALID [2018-11-18 21:58:12,485 INFO L273 TraceCheckUtils]: 1: Hoare triple {59#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1]; {59#true} is VALID [2018-11-18 21:58:12,485 INFO L273 TraceCheckUtils]: 2: Hoare triple {59#true} assume true; {59#true} is VALID [2018-11-18 21:58:12,488 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {59#true} {59#true} #156#return; {59#true} is VALID [2018-11-18 21:58:12,489 INFO L256 TraceCheckUtils]: 4: Hoare triple {59#true} call #t~ret36 := main(); {59#true} is VALID [2018-11-18 21:58:12,489 INFO L273 TraceCheckUtils]: 5: Hoare triple {59#true} call #t~malloc28.base, #t~malloc28.offset := #Ultimate.alloc(8bv32);~a~0.base, ~a~0.offset := #t~malloc28.base, #t~malloc28.offset; {59#true} is VALID [2018-11-18 21:58:12,489 INFO L273 TraceCheckUtils]: 6: Hoare triple {59#true} assume !(~a~0.base == 0bv32 && ~a~0.offset == 0bv32); {59#true} is VALID [2018-11-18 21:58:12,490 INFO L273 TraceCheckUtils]: 7: Hoare triple {59#true} havoc ~t~0.base, ~t~0.offset;~p~0.base, ~p~0.offset := ~a~0.base, ~a~0.offset;call write~intINTTYPE4(2bv32, ~a~0.base, ~a~0.offset, 4bv32); {59#true} is VALID [2018-11-18 21:58:12,504 INFO L273 TraceCheckUtils]: 8: Hoare triple {59#true} assume !true; {60#false} is VALID [2018-11-18 21:58:12,504 INFO L273 TraceCheckUtils]: 9: Hoare triple {60#false} call write~intINTTYPE4(2bv32, ~p~0.base, ~p~0.offset, 4bv32);call write~$Pointer$(0bv32, 0bv32, ~p~0.base, ~bvadd32(4bv32, ~p~0.offset), 4bv32);~p~0.base, ~p~0.offset := ~a~0.base, ~a~0.offset; {60#false} is VALID [2018-11-18 21:58:12,505 INFO L273 TraceCheckUtils]: 10: Hoare triple {60#false} assume true; {60#false} is VALID [2018-11-18 21:58:12,505 INFO L273 TraceCheckUtils]: 11: Hoare triple {60#false} assume !!(~p~0.base != 0bv32 || ~p~0.offset != 0bv32);call #t~mem32 := read~intINTTYPE4(~p~0.base, ~p~0.offset, 4bv32); {60#false} is VALID [2018-11-18 21:58:12,505 INFO L273 TraceCheckUtils]: 12: Hoare triple {60#false} assume 2bv32 != #t~mem32;havoc #t~mem32; {60#false} is VALID [2018-11-18 21:58:12,506 INFO L273 TraceCheckUtils]: 13: Hoare triple {60#false} assume !false; {60#false} is VALID [2018-11-18 21:58:12,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 21:58:12,509 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 21:58:12,514 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 21:58:12,515 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 21:58:12,520 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2018-11-18 21:58:12,522 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 21:58:12,526 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2018-11-18 21:58:12,596 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 14 edges. 14 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:58:12,596 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 21:58:12,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 21:58:12,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 21:58:12,608 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 2 states. [2018-11-18 21:58:13,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:58:13,412 INFO L93 Difference]: Finished difference Result 96 states and 123 transitions. [2018-11-18 21:58:13,412 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 21:58:13,413 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2018-11-18 21:58:13,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 21:58:13,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-18 21:58:13,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 123 transitions. [2018-11-18 21:58:13,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-18 21:58:13,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 123 transitions. [2018-11-18 21:58:13,439 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 123 transitions. [2018-11-18 21:58:13,836 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 123 edges. 123 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:58:13,849 INFO L225 Difference]: With dead ends: 96 [2018-11-18 21:58:13,849 INFO L226 Difference]: Without dead ends: 19 [2018-11-18 21:58:13,853 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 21:58:13,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-11-18 21:58:13,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-11-18 21:58:13,903 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 21:58:13,904 INFO L82 GeneralOperation]: Start isEquivalent. First operand 19 states. Second operand 19 states. [2018-11-18 21:58:13,904 INFO L74 IsIncluded]: Start isIncluded. First operand 19 states. Second operand 19 states. [2018-11-18 21:58:13,904 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 19 states. [2018-11-18 21:58:13,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:58:13,907 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2018-11-18 21:58:13,907 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2018-11-18 21:58:13,908 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:58:13,908 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:58:13,908 INFO L74 IsIncluded]: Start isIncluded. First operand 19 states. Second operand 19 states. [2018-11-18 21:58:13,909 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 19 states. [2018-11-18 21:58:13,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:58:13,912 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2018-11-18 21:58:13,912 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2018-11-18 21:58:13,912 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:58:13,913 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:58:13,913 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 21:58:13,913 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 21:58:13,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-11-18 21:58:13,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2018-11-18 21:58:13,917 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 14 [2018-11-18 21:58:13,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 21:58:13,918 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2018-11-18 21:58:13,918 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 21:58:13,918 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2018-11-18 21:58:13,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 21:58:13,919 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 21:58:13,919 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 21:58:13,919 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 21:58:13,920 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 21:58:13,920 INFO L82 PathProgramCache]: Analyzing trace with hash 1610040700, now seen corresponding path program 1 times [2018-11-18 21:58:13,920 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 21:58:13,921 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 21:58:13,947 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 21:58:13,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:58:14,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:58:14,003 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 21:58:14,229 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 11 treesize of output 8 [2018-11-18 21:58:14,243 INFO L477 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 8 treesize of output 7 [2018-11-18 21:58:14,251 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 21:58:14,254 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 21:58:14,263 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 21:58:14,264 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:15, output treesize:11 [2018-11-18 21:58:14,432 INFO L477 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 17 treesize of output 13 [2018-11-18 21:58:14,449 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 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 13 treesize of output 5 [2018-11-18 21:58:14,451 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 21:58:14,454 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 21:58:14,456 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 21:58:14,457 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:17, output treesize:5 [2018-11-18 21:58:14,460 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-11-18 21:58:14,506 INFO L256 TraceCheckUtils]: 0: Hoare triple {291#true} call ULTIMATE.init(); {291#true} is VALID [2018-11-18 21:58:14,507 INFO L273 TraceCheckUtils]: 1: Hoare triple {291#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1]; {291#true} is VALID [2018-11-18 21:58:14,507 INFO L273 TraceCheckUtils]: 2: Hoare triple {291#true} assume true; {291#true} is VALID [2018-11-18 21:58:14,507 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {291#true} {291#true} #156#return; {291#true} is VALID [2018-11-18 21:58:14,508 INFO L256 TraceCheckUtils]: 4: Hoare triple {291#true} call #t~ret36 := main(); {291#true} is VALID [2018-11-18 21:58:14,514 INFO L273 TraceCheckUtils]: 5: Hoare triple {291#true} call #t~malloc28.base, #t~malloc28.offset := #Ultimate.alloc(8bv32);~a~0.base, ~a~0.offset := #t~malloc28.base, #t~malloc28.offset; {311#(= main_~a~0.offset (_ bv0 32))} is VALID [2018-11-18 21:58:14,514 INFO L273 TraceCheckUtils]: 6: Hoare triple {311#(= main_~a~0.offset (_ bv0 32))} assume !(~a~0.base == 0bv32 && ~a~0.offset == 0bv32); {311#(= main_~a~0.offset (_ bv0 32))} is VALID [2018-11-18 21:58:14,535 INFO L273 TraceCheckUtils]: 7: Hoare triple {311#(= main_~a~0.offset (_ bv0 32))} havoc ~t~0.base, ~t~0.offset;~p~0.base, ~p~0.offset := ~a~0.base, ~a~0.offset;call write~intINTTYPE4(2bv32, ~a~0.base, ~a~0.offset, 4bv32); {318#(and (= main_~p~0.base main_~a~0.base) (= main_~a~0.offset (_ bv0 32)) (= main_~a~0.offset main_~p~0.offset))} is VALID [2018-11-18 21:58:14,544 INFO L273 TraceCheckUtils]: 8: Hoare triple {318#(and (= main_~p~0.base main_~a~0.base) (= main_~a~0.offset (_ bv0 32)) (= main_~a~0.offset main_~p~0.offset))} assume true; {318#(and (= main_~p~0.base main_~a~0.base) (= main_~a~0.offset (_ bv0 32)) (= main_~a~0.offset main_~p~0.offset))} is VALID [2018-11-18 21:58:14,551 INFO L273 TraceCheckUtils]: 9: Hoare triple {318#(and (= main_~p~0.base main_~a~0.base) (= main_~a~0.offset (_ bv0 32)) (= main_~a~0.offset main_~p~0.offset))} assume !(0bv32 != #t~nondet29);havoc #t~nondet29; {318#(and (= main_~p~0.base main_~a~0.base) (= main_~a~0.offset (_ bv0 32)) (= main_~a~0.offset main_~p~0.offset))} is VALID [2018-11-18 21:58:14,553 INFO L273 TraceCheckUtils]: 10: Hoare triple {318#(and (= main_~p~0.base main_~a~0.base) (= main_~a~0.offset (_ bv0 32)) (= main_~a~0.offset main_~p~0.offset))} call write~intINTTYPE4(2bv32, ~p~0.base, ~p~0.offset, 4bv32);call write~$Pointer$(0bv32, 0bv32, ~p~0.base, ~bvadd32(4bv32, ~p~0.offset), 4bv32);~p~0.base, ~p~0.offset := ~a~0.base, ~a~0.offset; {328#(and (= main_~p~0.offset (_ bv0 32)) (= (bvadd (select (select |#memory_int| main_~p~0.base) (_ bv0 32)) (_ bv4294967294 32)) (_ bv0 32)))} is VALID [2018-11-18 21:58:14,555 INFO L273 TraceCheckUtils]: 11: Hoare triple {328#(and (= main_~p~0.offset (_ bv0 32)) (= (bvadd (select (select |#memory_int| main_~p~0.base) (_ bv0 32)) (_ bv4294967294 32)) (_ bv0 32)))} assume true; {328#(and (= main_~p~0.offset (_ bv0 32)) (= (bvadd (select (select |#memory_int| main_~p~0.base) (_ bv0 32)) (_ bv4294967294 32)) (_ bv0 32)))} is VALID [2018-11-18 21:58:14,556 INFO L273 TraceCheckUtils]: 12: Hoare triple {328#(and (= main_~p~0.offset (_ bv0 32)) (= (bvadd (select (select |#memory_int| main_~p~0.base) (_ bv0 32)) (_ bv4294967294 32)) (_ bv0 32)))} assume !!(~p~0.base != 0bv32 || ~p~0.offset != 0bv32);call #t~mem32 := read~intINTTYPE4(~p~0.base, ~p~0.offset, 4bv32); {335#(= (bvadd |main_#t~mem32| (_ bv4294967294 32)) (_ bv0 32))} is VALID [2018-11-18 21:58:14,565 INFO L273 TraceCheckUtils]: 13: Hoare triple {335#(= (bvadd |main_#t~mem32| (_ bv4294967294 32)) (_ bv0 32))} assume 2bv32 != #t~mem32;havoc #t~mem32; {292#false} is VALID [2018-11-18 21:58:14,566 INFO L273 TraceCheckUtils]: 14: Hoare triple {292#false} assume !false; {292#false} is VALID [2018-11-18 21:58:14,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 21:58:14,569 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 21:58:14,571 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 21:58:14,572 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 21:58:14,573 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2018-11-18 21:58:14,574 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 21:58:14,574 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2018-11-18 21:58:14,615 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 15 edges. 15 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:58:14,616 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 21:58:14,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 21:58:14,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-18 21:58:14,617 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand 6 states. [2018-11-18 21:58:15,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:58:15,157 INFO L93 Difference]: Finished difference Result 36 states and 38 transitions. [2018-11-18 21:58:15,157 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 21:58:15,157 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2018-11-18 21:58:15,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 21:58:15,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-11-18 21:58:15,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 38 transitions. [2018-11-18 21:58:15,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-11-18 21:58:15,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 38 transitions. [2018-11-18 21:58:15,163 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 38 transitions. [2018-11-18 21:58:15,236 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 38 edges. 38 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:58:15,239 INFO L225 Difference]: With dead ends: 36 [2018-11-18 21:58:15,239 INFO L226 Difference]: Without dead ends: 34 [2018-11-18 21:58:15,241 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-18 21:58:15,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-11-18 21:58:15,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 25. [2018-11-18 21:58:15,270 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 21:58:15,270 INFO L82 GeneralOperation]: Start isEquivalent. First operand 34 states. Second operand 25 states. [2018-11-18 21:58:15,270 INFO L74 IsIncluded]: Start isIncluded. First operand 34 states. Second operand 25 states. [2018-11-18 21:58:15,271 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 25 states. [2018-11-18 21:58:15,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:58:15,274 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2018-11-18 21:58:15,274 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2018-11-18 21:58:15,275 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:58:15,275 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:58:15,275 INFO L74 IsIncluded]: Start isIncluded. First operand 25 states. Second operand 34 states. [2018-11-18 21:58:15,275 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 34 states. [2018-11-18 21:58:15,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:58:15,278 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2018-11-18 21:58:15,278 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2018-11-18 21:58:15,279 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:58:15,279 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:58:15,279 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 21:58:15,279 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 21:58:15,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-11-18 21:58:15,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2018-11-18 21:58:15,281 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 15 [2018-11-18 21:58:15,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 21:58:15,282 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2018-11-18 21:58:15,282 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 21:58:15,282 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2018-11-18 21:58:15,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 21:58:15,283 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 21:58:15,283 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 21:58:15,284 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 21:58:15,284 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 21:58:15,284 INFO L82 PathProgramCache]: Analyzing trace with hash -1751121932, now seen corresponding path program 1 times [2018-11-18 21:58:15,285 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 21:58:15,285 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 21:58:15,302 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 21:58:15,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 21:58:15,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 21:58:15,425 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 21:58:15,501 WARN L170 areAnnotationChecker]: sl_random_insertENTRY has no Hoare annotation [2018-11-18 21:58:15,504 WARN L170 areAnnotationChecker]: create_sl_with_head_and_tailENTRY has no Hoare annotation [2018-11-18 21:58:15,504 WARN L170 areAnnotationChecker]: exitENTRY has no Hoare annotation [2018-11-18 21:58:15,504 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2018-11-18 21:58:15,504 WARN L170 areAnnotationChecker]: __bswap_32ENTRY has no Hoare annotation [2018-11-18 21:58:15,505 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2018-11-18 21:58:15,505 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2018-11-18 21:58:15,505 WARN L170 areAnnotationChecker]: __bswap_64ENTRY has no Hoare annotation [2018-11-18 21:58:15,505 WARN L170 areAnnotationChecker]: destroy_slENTRY has no Hoare annotation [2018-11-18 21:58:15,508 WARN L170 areAnnotationChecker]: alloc_or_dieENTRY has no Hoare annotation [2018-11-18 21:58:15,508 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2018-11-18 21:58:15,508 WARN L170 areAnnotationChecker]: L554-4 has no Hoare annotation [2018-11-18 21:58:15,509 WARN L170 areAnnotationChecker]: L554-4 has no Hoare annotation [2018-11-18 21:58:15,509 WARN L170 areAnnotationChecker]: create_sl_with_head_and_tailFINAL has no Hoare annotation [2018-11-18 21:58:15,509 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2018-11-18 21:58:15,509 WARN L170 areAnnotationChecker]: __bswap_32FINAL has no Hoare annotation [2018-11-18 21:58:15,514 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2018-11-18 21:58:15,514 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2018-11-18 21:58:15,514 WARN L170 areAnnotationChecker]: __bswap_64FINAL has no Hoare annotation [2018-11-18 21:58:15,515 WARN L170 areAnnotationChecker]: L570-4 has no Hoare annotation [2018-11-18 21:58:15,515 WARN L170 areAnnotationChecker]: L570-4 has no Hoare annotation [2018-11-18 21:58:15,515 WARN L170 areAnnotationChecker]: alloc_or_dieFINAL has no Hoare annotation [2018-11-18 21:58:15,515 WARN L170 areAnnotationChecker]: L586 has no Hoare annotation [2018-11-18 21:58:15,515 WARN L170 areAnnotationChecker]: L586 has no Hoare annotation [2018-11-18 21:58:15,516 WARN L170 areAnnotationChecker]: L554-1 has no Hoare annotation [2018-11-18 21:58:15,516 WARN L170 areAnnotationChecker]: L554-5 has no Hoare annotation [2018-11-18 21:58:15,516 WARN L170 areAnnotationChecker]: create_sl_with_head_and_tailEXIT has no Hoare annotation [2018-11-18 21:58:15,516 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2018-11-18 21:58:15,520 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2018-11-18 21:58:15,520 WARN L170 areAnnotationChecker]: L570-1 has no Hoare annotation [2018-11-18 21:58:15,520 WARN L170 areAnnotationChecker]: L570-5 has no Hoare annotation [2018-11-18 21:58:15,521 WARN L170 areAnnotationChecker]: L586-1 has no Hoare annotation [2018-11-18 21:58:15,521 WARN L170 areAnnotationChecker]: L586-1 has no Hoare annotation [2018-11-18 21:58:15,521 WARN L170 areAnnotationChecker]: L586-3 has no Hoare annotation [2018-11-18 21:58:15,521 WARN L170 areAnnotationChecker]: L554-2 has no Hoare annotation [2018-11-18 21:58:15,522 WARN L170 areAnnotationChecker]: L554-2 has no Hoare annotation [2018-11-18 21:58:15,522 WARN L170 areAnnotationChecker]: L557-4 has no Hoare annotation [2018-11-18 21:58:15,522 WARN L170 areAnnotationChecker]: L557-4 has no Hoare annotation [2018-11-18 21:58:15,522 WARN L170 areAnnotationChecker]: L606 has no Hoare annotation [2018-11-18 21:58:15,522 WARN L170 areAnnotationChecker]: L570-2 has no Hoare annotation [2018-11-18 21:58:15,523 WARN L170 areAnnotationChecker]: L570-2 has no Hoare annotation [2018-11-18 21:58:15,523 WARN L170 areAnnotationChecker]: destroy_slFINAL has no Hoare annotation [2018-11-18 21:58:15,523 WARN L170 areAnnotationChecker]: L590-3 has no Hoare annotation [2018-11-18 21:58:15,523 WARN L170 areAnnotationChecker]: L590-3 has no Hoare annotation [2018-11-18 21:58:15,523 WARN L170 areAnnotationChecker]: L557-1 has no Hoare annotation [2018-11-18 21:58:15,523 WARN L170 areAnnotationChecker]: L557-5 has no Hoare annotation [2018-11-18 21:58:15,524 WARN L170 areAnnotationChecker]: L608-1 has no Hoare annotation [2018-11-18 21:58:15,524 WARN L170 areAnnotationChecker]: L608-1 has no Hoare annotation [2018-11-18 21:58:15,524 WARN L170 areAnnotationChecker]: destroy_slEXIT has no Hoare annotation [2018-11-18 21:58:15,524 WARN L170 areAnnotationChecker]: L590-1 has no Hoare annotation [2018-11-18 21:58:15,524 WARN L170 areAnnotationChecker]: L590-1 has no Hoare annotation [2018-11-18 21:58:15,524 WARN L170 areAnnotationChecker]: L590-4 has no Hoare annotation [2018-11-18 21:58:15,524 WARN L170 areAnnotationChecker]: L557-2 has no Hoare annotation [2018-11-18 21:58:15,525 WARN L170 areAnnotationChecker]: L557-2 has no Hoare annotation [2018-11-18 21:58:15,525 WARN L170 areAnnotationChecker]: L562 has no Hoare annotation [2018-11-18 21:58:15,525 WARN L170 areAnnotationChecker]: L562 has no Hoare annotation [2018-11-18 21:58:15,525 WARN L170 areAnnotationChecker]: L607-1 has no Hoare annotation [2018-11-18 21:58:15,525 WARN L170 areAnnotationChecker]: L607-1 has no Hoare annotation [2018-11-18 21:58:15,525 WARN L170 areAnnotationChecker]: L607-3 has no Hoare annotation [2018-11-18 21:58:15,525 WARN L170 areAnnotationChecker]: L607-3 has no Hoare annotation [2018-11-18 21:58:15,526 WARN L170 areAnnotationChecker]: L609 has no Hoare annotation [2018-11-18 21:58:15,526 WARN L170 areAnnotationChecker]: L593 has no Hoare annotation [2018-11-18 21:58:15,526 WARN L170 areAnnotationChecker]: L593 has no Hoare annotation [2018-11-18 21:58:15,526 WARN L170 areAnnotationChecker]: L600-3 has no Hoare annotation [2018-11-18 21:58:15,526 WARN L170 areAnnotationChecker]: L600-3 has no Hoare annotation [2018-11-18 21:58:15,526 WARN L170 areAnnotationChecker]: L562-2 has no Hoare annotation [2018-11-18 21:58:15,526 WARN L170 areAnnotationChecker]: L608 has no Hoare annotation [2018-11-18 21:58:15,527 WARN L170 areAnnotationChecker]: L608 has no Hoare annotation [2018-11-18 21:58:15,527 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2018-11-18 21:58:15,527 WARN L170 areAnnotationChecker]: L593-1 has no Hoare annotation [2018-11-18 21:58:15,527 WARN L170 areAnnotationChecker]: L593-1 has no Hoare annotation [2018-11-18 21:58:15,528 WARN L170 areAnnotationChecker]: L593-3 has no Hoare annotation [2018-11-18 21:58:15,528 WARN L170 areAnnotationChecker]: L600-1 has no Hoare annotation [2018-11-18 21:58:15,528 WARN L170 areAnnotationChecker]: L600-1 has no Hoare annotation [2018-11-18 21:58:15,528 WARN L170 areAnnotationChecker]: L600-4 has no Hoare annotation [2018-11-18 21:58:15,529 WARN L170 areAnnotationChecker]: L600-4 has no Hoare annotation [2018-11-18 21:58:15,529 WARN L170 areAnnotationChecker]: sl_random_insertEXIT has no Hoare annotation [2018-11-18 21:58:15,529 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2018-11-18 21:58:15,529 WARN L170 areAnnotationChecker]: L601 has no Hoare annotation [2018-11-18 21:58:15,529 WARN L170 areAnnotationChecker]: L601 has no Hoare annotation [2018-11-18 21:58:15,530 WARN L170 areAnnotationChecker]: L602 has no Hoare annotation [2018-11-18 21:58:15,530 WARN L170 areAnnotationChecker]: L602 has no Hoare annotation [2018-11-18 21:58:15,530 WARN L170 areAnnotationChecker]: L601-2 has no Hoare annotation [2018-11-18 21:58:15,530 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2018-11-18 21:58:15,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 09:58:15 BoogieIcfgContainer [2018-11-18 21:58:15,533 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 21:58:15,535 INFO L168 Benchmark]: Toolchain (without parser) took 5975.60 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 727.7 MB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -489.5 MB). Peak memory consumption was 238.2 MB. Max. memory is 7.1 GB. [2018-11-18 21:58:15,537 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-18 21:58:15,538 INFO L168 Benchmark]: CACSL2BoogieTranslator took 650.60 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-11-18 21:58:15,539 INFO L168 Benchmark]: Boogie Preprocessor took 224.62 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 727.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -805.9 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. [2018-11-18 21:58:15,541 INFO L168 Benchmark]: RCFGBuilder took 1734.67 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 77.2 MB). Peak memory consumption was 77.2 MB. Max. memory is 7.1 GB. [2018-11-18 21:58:15,542 INFO L168 Benchmark]: TraceAbstraction took 3360.07 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 1.9 GB in the end (delta: 207.5 MB). Peak memory consumption was 207.5 MB. Max. memory is 7.1 GB. [2018-11-18 21:58:15,547 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - GenericResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 650.60 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 224.62 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 727.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -805.9 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1734.67 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 77.2 MB). Peak memory consumption was 77.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3360.07 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 1.9 GB in the end (delta: 207.5 MB). Peak memory consumption was 207.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 602]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L585] EXPR, FCALL malloc(sizeof(struct node)) [L585] List a = (List) malloc(sizeof(struct node)); VAL [a={-2130706368:0}, malloc(sizeof(struct node))={-2130706368:0}] [L586] COND FALSE !(a == 0) VAL [a={-2130706368:0}, malloc(sizeof(struct node))={-2130706368:0}] [L587] List t; [L588] List p = a; [L589] FCALL a->h = 2 VAL [a={-2130706368:0}, malloc(sizeof(struct node))={-2130706368:0}, p={-2130706368:0}] [L590] COND TRUE __VERIFIER_nondet_int() [L591] FCALL p->h = 1 [L592] EXPR, FCALL malloc(sizeof(struct node)) [L592] t = (List) malloc(sizeof(struct node)) VAL [a={-2130706368:0}, malloc(sizeof(struct node))={8388609:0}, malloc(sizeof(struct node))={-2130706368:0}, p={-2130706368:0}, t={8388609:0}] [L593] COND FALSE !(t == 0) VAL [a={-2130706368:0}, malloc(sizeof(struct node))={8388609:0}, malloc(sizeof(struct node))={-2130706368:0}, p={-2130706368:0}, t={8388609:0}] [L594] FCALL p->n = t [L595] EXPR, FCALL p->n [L595] p = p->n [L590] COND FALSE !(__VERIFIER_nondet_int()) [L597] FCALL p->h = 2 [L598] FCALL p->n = 0 [L599] p = a VAL [a={-2130706368:0}, malloc(sizeof(struct node))={8388609:0}, malloc(sizeof(struct node))={-2130706368:0}, p={-2130706368:0}, t={8388609:0}] [L600] COND TRUE p!=0 [L601] EXPR, FCALL p->h VAL [a={-2130706368:0}, malloc(sizeof(struct node))={8388609:0}, malloc(sizeof(struct node))={-2130706368:0}, p={-2130706368:0}, p->h=1, t={8388609:0}] [L601] COND TRUE p->h != 2 [L602] __VERIFIER_error() VAL [a={-2130706368:0}, malloc(sizeof(struct node))={8388609:0}, malloc(sizeof(struct node))={-2130706368:0}, p={-2130706368:0}, t={8388609:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 67 locations, 1 error locations. UNSAFE Result, 3.2s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 1.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 75 SDtfs, 34 SDslu, 36 SDs, 0 SdLazy, 29 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 9 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 1191 SizeOfPredicates, 7 NumberOfNonLiveVariables, 95 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...