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/forester-heap/sll-queue_false-unreach-call_false-valid-memcleanup.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-18e5b2d-m [2018-11-18 21:51:53,655 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 21:51:53,657 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 21:51:53,674 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 21:51:53,675 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 21:51:53,676 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 21:51:53,677 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 21:51:53,680 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 21:51:53,683 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 21:51:53,692 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 21:51:53,693 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 21:51:53,693 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 21:51:53,694 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 21:51:53,696 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 21:51:53,698 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 21:51:53,698 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 21:51:53,700 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 21:51:53,705 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 21:51:53,710 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 21:51:53,713 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 21:51:53,717 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 21:51:53,718 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 21:51:53,721 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 21:51:53,721 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 21:51:53,724 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 21:51:53,726 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 21:51:53,729 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 21:51:53,730 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 21:51:53,731 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 21:51:53,734 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 21:51:53,734 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 21:51:53,736 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 21:51:53,736 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 21:51:53,737 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 21:51:53,738 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 21:51:53,738 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 21:51:53,739 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 21:51:53,768 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 21:51:53,768 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 21:51:53,771 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 21:51:53,772 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 21:51:53,773 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 21:51:53,773 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 21:51:53,773 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 21:51:53,773 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 21:51:53,775 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 21:51:53,775 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 21:51:53,775 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 21:51:53,775 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 21:51:53,775 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 21:51:53,776 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 21:51:53,776 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 21:51:53,776 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 21:51:53,776 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 21:51:53,777 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 21:51:53,777 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 21:51:53,777 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 21:51:53,777 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 21:51:53,777 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 21:51:53,778 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 21:51:53,778 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 21:51:53,778 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 21:51:53,778 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 21:51:53,778 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 21:51:53,779 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 21:51:53,780 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-18 21:51:53,780 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 21:51:53,780 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 21:51:53,781 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 21:51:53,781 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 21:51:53,837 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 21:51:53,852 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 21:51:53,857 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 21:51:53,859 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 21:51:53,859 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 21:51:53,860 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/sll-queue_false-unreach-call_false-valid-memcleanup.i [2018-11-18 21:51:53,934 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3b460cf7/7b4f1223a72d4fde9f9af8b67bfda157/FLAG5982e2bb3 [2018-11-18 21:51:54,491 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 21:51:54,491 INFO L161 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-queue_false-unreach-call_false-valid-memcleanup.i [2018-11-18 21:51:54,509 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3b460cf7/7b4f1223a72d4fde9f9af8b67bfda157/FLAG5982e2bb3 [2018-11-18 21:51:54,771 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3b460cf7/7b4f1223a72d4fde9f9af8b67bfda157 [2018-11-18 21:51:54,783 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 21:51:54,784 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-11-18 21:51:54,785 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 21:51:54,786 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 21:51:54,790 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 21:51:54,791 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:51:54" (1/1) ... [2018-11-18 21:51:54,794 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 09:51:54, skipping insertion in model container [2018-11-18 21:51:54,795 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:51:54" (1/1) ... [2018-11-18 21:51:54,806 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 21:51:54,872 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 21:51:55,288 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 21:51:55,311 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 21:51:55,367 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 21:51:55,510 INFO L195 MainTranslator]: Completed translation [2018-11-18 21:51:55,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:51:55 WrapperNode [2018-11-18 21:51:55,511 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 21:51:55,512 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 21:51:55,512 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 21:51:55,512 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 21:51:55,526 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:51:55" (1/1) ... [2018-11-18 21:51:55,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:51:55" (1/1) ... [2018-11-18 21:51:55,546 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:51:55" (1/1) ... [2018-11-18 21:51:55,546 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:51:55" (1/1) ... [2018-11-18 21:51:55,583 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:51:55" (1/1) ... [2018-11-18 21:51:55,600 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:51:55" (1/1) ... [2018-11-18 21:51:55,604 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:51:55" (1/1) ... [2018-11-18 21:51:55,613 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 21:51:55,614 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 21:51:55,614 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 21:51:55,614 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 21:51:55,615 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:51:55" (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 21:51:55,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 21:51:55,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 21:51:55,669 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 21:51:55,670 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-11-18 21:51:55,670 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-11-18 21:51:55,670 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-11-18 21:51:55,670 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-11-18 21:51:55,670 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-11-18 21:51:55,671 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-11-18 21:51:55,671 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-11-18 21:51:55,671 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-11-18 21:51:55,671 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-11-18 21:51:55,671 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-11-18 21:51:55,671 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-11-18 21:51:55,672 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-11-18 21:51:55,672 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-11-18 21:51:55,672 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-11-18 21:51:55,672 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-11-18 21:51:55,672 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-11-18 21:51:55,672 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-11-18 21:51:55,673 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-11-18 21:51:55,673 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-11-18 21:51:55,673 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-11-18 21:51:55,673 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-11-18 21:51:55,673 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-18 21:51:55,673 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-11-18 21:51:55,674 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-11-18 21:51:55,674 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-11-18 21:51:55,674 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-11-18 21:51:55,674 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-11-18 21:51:55,674 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-11-18 21:51:55,674 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-11-18 21:51:55,674 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-11-18 21:51:55,675 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-11-18 21:51:55,675 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-11-18 21:51:55,675 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-11-18 21:51:55,675 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-11-18 21:51:55,675 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-11-18 21:51:55,675 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-11-18 21:51:55,676 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-11-18 21:51:55,676 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-11-18 21:51:55,676 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-11-18 21:51:55,676 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-11-18 21:51:55,676 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-11-18 21:51:55,676 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-11-18 21:51:55,677 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-11-18 21:51:55,677 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-11-18 21:51:55,677 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-11-18 21:51:55,677 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-11-18 21:51:55,677 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-11-18 21:51:55,677 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-11-18 21:51:55,678 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-11-18 21:51:55,678 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-11-18 21:51:55,678 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-18 21:51:55,678 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-18 21:51:55,678 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-18 21:51:55,678 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-18 21:51:55,678 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-18 21:51:55,679 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-18 21:51:55,679 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-18 21:51:55,679 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-11-18 21:51:55,679 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2018-11-18 21:51:55,679 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-11-18 21:51:55,679 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-11-18 21:51:55,680 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2018-11-18 21:51:55,680 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-11-18 21:51:55,680 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-18 21:51:55,680 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2018-11-18 21:51:55,680 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-11-18 21:51:55,680 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-11-18 21:51:55,680 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-11-18 21:51:55,681 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-11-18 21:51:55,681 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-11-18 21:51:55,681 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-11-18 21:51:55,681 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-11-18 21:51:55,681 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-11-18 21:51:55,681 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-11-18 21:51:55,681 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-11-18 21:51:55,682 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-11-18 21:51:55,682 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-11-18 21:51:55,682 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-18 21:51:55,682 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-11-18 21:51:55,682 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-11-18 21:51:55,682 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-11-18 21:51:55,683 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-11-18 21:51:55,683 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-11-18 21:51:55,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-11-18 21:51:55,683 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-11-18 21:51:55,683 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-11-18 21:51:55,683 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-11-18 21:51:55,684 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-11-18 21:51:55,684 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-11-18 21:51:55,684 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-11-18 21:51:55,684 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-11-18 21:51:55,684 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-11-18 21:51:55,684 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-11-18 21:51:55,684 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-11-18 21:51:55,685 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-11-18 21:51:55,685 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-11-18 21:51:55,685 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-11-18 21:51:55,685 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-11-18 21:51:55,685 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-11-18 21:51:55,685 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-11-18 21:51:55,686 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-11-18 21:51:55,686 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-11-18 21:51:55,686 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-11-18 21:51:55,686 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-18 21:51:55,686 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 21:51:55,686 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 21:51:55,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 21:51:55,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-18 21:51:55,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 21:51:55,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-18 21:51:55,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 21:51:55,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 21:51:55,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 21:51:55,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 21:51:55,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-11-18 21:51:57,486 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 21:51:57,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:51:57 BoogieIcfgContainer [2018-11-18 21:51:57,487 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 21:51:57,489 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 21:51:57,489 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 21:51:57,492 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 21:51:57,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:51:54" (1/3) ... [2018-11-18 21:51:57,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e625651 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:51:57, skipping insertion in model container [2018-11-18 21:51:57,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:51:55" (2/3) ... [2018-11-18 21:51:57,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e625651 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:51:57, skipping insertion in model container [2018-11-18 21:51:57,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:51:57" (3/3) ... [2018-11-18 21:51:57,497 INFO L112 eAbstractionObserver]: Analyzing ICFG sll-queue_false-unreach-call_false-valid-memcleanup.i [2018-11-18 21:51:57,507 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 21:51:57,516 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 14 error locations. [2018-11-18 21:51:57,535 INFO L257 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2018-11-18 21:51:57,567 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 21:51:57,567 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 21:51:57,568 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 21:51:57,568 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 21:51:57,568 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 21:51:57,568 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 21:51:57,569 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 21:51:57,569 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 21:51:57,569 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 21:51:57,592 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states. [2018-11-18 21:51:57,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 21:51:57,599 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 21:51:57,600 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 21:51:57,603 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 21:51:57,610 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 21:51:57,610 INFO L82 PathProgramCache]: Analyzing trace with hash 820246688, now seen corresponding path program 1 times [2018-11-18 21:51:57,615 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 21:51:57,616 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 21:51:57,640 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 21:51:57,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:51:57,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:51:57,719 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 21:51:57,913 INFO L256 TraceCheckUtils]: 0: Hoare triple {99#true} call ULTIMATE.init(); {99#true} is VALID [2018-11-18 21:51:57,917 INFO L273 TraceCheckUtils]: 1: Hoare triple {99#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1]; {99#true} is VALID [2018-11-18 21:51:57,917 INFO L273 TraceCheckUtils]: 2: Hoare triple {99#true} assume true; {99#true} is VALID [2018-11-18 21:51:57,919 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {99#true} {99#true} #359#return; {99#true} is VALID [2018-11-18 21:51:57,919 INFO L256 TraceCheckUtils]: 4: Hoare triple {99#true} call #t~ret24 := main(); {99#true} is VALID [2018-11-18 21:51:57,919 INFO L273 TraceCheckUtils]: 5: Hoare triple {99#true} call #t~malloc0.base, #t~malloc0.offset := #Ultimate.alloc(8bv32);~head~0.base, ~head~0.offset := #t~malloc0.base, #t~malloc0.offset;call write~$Pointer$(0bv32, 0bv32, ~head~0.base, ~head~0.offset, 4bv32);call write~intINTTYPE4(0bv32, ~head~0.base, ~bvadd32(4bv32, ~head~0.offset), 4bv32);~item~0.base, ~item~0.offset := ~head~0.base, ~head~0.offset;~status~0 := 0bv32; {99#true} is VALID [2018-11-18 21:51:57,941 INFO L273 TraceCheckUtils]: 6: Hoare triple {99#true} assume !true; {100#false} is VALID [2018-11-18 21:51:57,941 INFO L273 TraceCheckUtils]: 7: Hoare triple {100#false} assume true; {100#false} is VALID [2018-11-18 21:51:57,942 INFO L273 TraceCheckUtils]: 8: Hoare triple {100#false} assume !(~head~0.base != 0bv32 || ~head~0.offset != 0bv32); {100#false} is VALID [2018-11-18 21:51:57,942 INFO L273 TraceCheckUtils]: 9: Hoare triple {100#false} assume !false; {100#false} is VALID [2018-11-18 21:51:57,946 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 21:51:57,946 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 21:51:57,953 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 21:51:57,954 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 21:51:57,960 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-11-18 21:51:57,963 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 21:51:57,971 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2018-11-18 21:51:58,123 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:51:58,123 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 21:51:58,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 21:51:58,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 21:51:58,137 INFO L87 Difference]: Start difference. First operand 96 states. Second operand 2 states. [2018-11-18 21:51:58,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:51:58,451 INFO L93 Difference]: Finished difference Result 186 states and 294 transitions. [2018-11-18 21:51:58,451 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 21:51:58,452 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-11-18 21:51:58,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 21:51:58,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-18 21:51:58,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 294 transitions. [2018-11-18 21:51:58,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-18 21:51:58,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 294 transitions. [2018-11-18 21:51:58,485 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 294 transitions. [2018-11-18 21:51:59,353 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 294 edges. 294 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:51:59,369 INFO L225 Difference]: With dead ends: 186 [2018-11-18 21:51:59,370 INFO L226 Difference]: Without dead ends: 89 [2018-11-18 21:51:59,374 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 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 21:51:59,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2018-11-18 21:51:59,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2018-11-18 21:51:59,435 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 21:51:59,435 INFO L82 GeneralOperation]: Start isEquivalent. First operand 89 states. Second operand 89 states. [2018-11-18 21:51:59,436 INFO L74 IsIncluded]: Start isIncluded. First operand 89 states. Second operand 89 states. [2018-11-18 21:51:59,436 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 89 states. [2018-11-18 21:51:59,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:51:59,444 INFO L93 Difference]: Finished difference Result 89 states and 97 transitions. [2018-11-18 21:51:59,444 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 97 transitions. [2018-11-18 21:51:59,445 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:51:59,445 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:51:59,446 INFO L74 IsIncluded]: Start isIncluded. First operand 89 states. Second operand 89 states. [2018-11-18 21:51:59,446 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 89 states. [2018-11-18 21:51:59,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:51:59,453 INFO L93 Difference]: Finished difference Result 89 states and 97 transitions. [2018-11-18 21:51:59,453 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 97 transitions. [2018-11-18 21:51:59,454 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:51:59,455 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:51:59,455 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 21:51:59,455 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 21:51:59,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-11-18 21:51:59,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 97 transitions. [2018-11-18 21:51:59,463 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 97 transitions. Word has length 10 [2018-11-18 21:51:59,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 21:51:59,464 INFO L480 AbstractCegarLoop]: Abstraction has 89 states and 97 transitions. [2018-11-18 21:51:59,464 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 21:51:59,464 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 97 transitions. [2018-11-18 21:51:59,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 21:51:59,466 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 21:51:59,466 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 21:51:59,467 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 21:51:59,467 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 21:51:59,468 INFO L82 PathProgramCache]: Analyzing trace with hash -401264630, now seen corresponding path program 1 times [2018-11-18 21:51:59,468 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 21:51:59,468 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 21:51:59,501 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 21:51:59,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:51:59,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:51:59,535 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 21:51:59,582 INFO L256 TraceCheckUtils]: 0: Hoare triple {609#true} call ULTIMATE.init(); {609#true} is VALID [2018-11-18 21:51:59,582 INFO L273 TraceCheckUtils]: 1: Hoare triple {609#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1]; {609#true} is VALID [2018-11-18 21:51:59,583 INFO L273 TraceCheckUtils]: 2: Hoare triple {609#true} assume true; {609#true} is VALID [2018-11-18 21:51:59,583 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {609#true} {609#true} #359#return; {609#true} is VALID [2018-11-18 21:51:59,584 INFO L256 TraceCheckUtils]: 4: Hoare triple {609#true} call #t~ret24 := main(); {609#true} is VALID [2018-11-18 21:51:59,585 INFO L273 TraceCheckUtils]: 5: Hoare triple {609#true} call #t~malloc0.base, #t~malloc0.offset := #Ultimate.alloc(8bv32);~head~0.base, ~head~0.offset := #t~malloc0.base, #t~malloc0.offset;call write~$Pointer$(0bv32, 0bv32, ~head~0.base, ~head~0.offset, 4bv32);call write~intINTTYPE4(0bv32, ~head~0.base, ~bvadd32(4bv32, ~head~0.offset), 4bv32);~item~0.base, ~item~0.offset := ~head~0.base, ~head~0.offset;~status~0 := 0bv32; {629#(not (= (_ bv0 32) main_~head~0.base))} is VALID [2018-11-18 21:51:59,587 INFO L273 TraceCheckUtils]: 6: Hoare triple {629#(not (= (_ bv0 32) main_~head~0.base))} assume true; {629#(not (= (_ bv0 32) main_~head~0.base))} is VALID [2018-11-18 21:51:59,587 INFO L273 TraceCheckUtils]: 7: Hoare triple {629#(not (= (_ bv0 32) main_~head~0.base))} assume !(0bv32 != #t~nondet1);havoc #t~nondet1; {629#(not (= (_ bv0 32) main_~head~0.base))} is VALID [2018-11-18 21:51:59,589 INFO L273 TraceCheckUtils]: 8: Hoare triple {629#(not (= (_ bv0 32) main_~head~0.base))} assume true; {629#(not (= (_ bv0 32) main_~head~0.base))} is VALID [2018-11-18 21:51:59,590 INFO L273 TraceCheckUtils]: 9: Hoare triple {629#(not (= (_ bv0 32) main_~head~0.base))} assume !(~head~0.base != 0bv32 || ~head~0.offset != 0bv32); {610#false} is VALID [2018-11-18 21:51:59,591 INFO L273 TraceCheckUtils]: 10: Hoare triple {610#false} assume !false; {610#false} is VALID [2018-11-18 21:51:59,592 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 21:51:59,592 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 21:51:59,594 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 21:51:59,595 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 21:51:59,596 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-11-18 21:51:59,596 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 21:51:59,596 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2018-11-18 21:51:59,615 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:51:59,615 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 21:51:59,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 21:51:59,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 21:51:59,617 INFO L87 Difference]: Start difference. First operand 89 states and 97 transitions. Second operand 3 states. [2018-11-18 21:52:00,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:52:00,034 INFO L93 Difference]: Finished difference Result 89 states and 97 transitions. [2018-11-18 21:52:00,034 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 21:52:00,034 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-11-18 21:52:00,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 21:52:00,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 21:52:00,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 97 transitions. [2018-11-18 21:52:00,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 21:52:00,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 97 transitions. [2018-11-18 21:52:00,040 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 97 transitions. [2018-11-18 21:52:00,214 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 97 edges. 97 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:52:00,219 INFO L225 Difference]: With dead ends: 89 [2018-11-18 21:52:00,219 INFO L226 Difference]: Without dead ends: 79 [2018-11-18 21:52:00,220 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 21:52:00,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2018-11-18 21:52:00,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2018-11-18 21:52:00,264 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 21:52:00,264 INFO L82 GeneralOperation]: Start isEquivalent. First operand 79 states. Second operand 79 states. [2018-11-18 21:52:00,264 INFO L74 IsIncluded]: Start isIncluded. First operand 79 states. Second operand 79 states. [2018-11-18 21:52:00,264 INFO L87 Difference]: Start difference. First operand 79 states. Second operand 79 states. [2018-11-18 21:52:00,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:52:00,270 INFO L93 Difference]: Finished difference Result 79 states and 87 transitions. [2018-11-18 21:52:00,270 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 87 transitions. [2018-11-18 21:52:00,271 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:52:00,271 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:52:00,271 INFO L74 IsIncluded]: Start isIncluded. First operand 79 states. Second operand 79 states. [2018-11-18 21:52:00,272 INFO L87 Difference]: Start difference. First operand 79 states. Second operand 79 states. [2018-11-18 21:52:00,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:52:00,276 INFO L93 Difference]: Finished difference Result 79 states and 87 transitions. [2018-11-18 21:52:00,276 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 87 transitions. [2018-11-18 21:52:00,277 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:52:00,278 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:52:00,278 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 21:52:00,278 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 21:52:00,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-11-18 21:52:00,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 87 transitions. [2018-11-18 21:52:00,282 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 87 transitions. Word has length 11 [2018-11-18 21:52:00,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 21:52:00,282 INFO L480 AbstractCegarLoop]: Abstraction has 79 states and 87 transitions. [2018-11-18 21:52:00,283 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 21:52:00,283 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 87 transitions. [2018-11-18 21:52:00,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 21:52:00,284 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 21:52:00,284 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 21:52:00,285 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 21:52:00,285 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 21:52:00,285 INFO L82 PathProgramCache]: Analyzing trace with hash 904946878, now seen corresponding path program 1 times [2018-11-18 21:52:00,286 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 21:52:00,286 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 21:52:00,316 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 21:52:00,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:52:00,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:52:00,372 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 21:52:00,416 INFO L256 TraceCheckUtils]: 0: Hoare triple {990#true} call ULTIMATE.init(); {990#true} is VALID [2018-11-18 21:52:00,417 INFO L273 TraceCheckUtils]: 1: Hoare triple {990#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1]; {990#true} is VALID [2018-11-18 21:52:00,417 INFO L273 TraceCheckUtils]: 2: Hoare triple {990#true} assume true; {990#true} is VALID [2018-11-18 21:52:00,417 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {990#true} {990#true} #359#return; {990#true} is VALID [2018-11-18 21:52:00,418 INFO L256 TraceCheckUtils]: 4: Hoare triple {990#true} call #t~ret24 := main(); {990#true} is VALID [2018-11-18 21:52:00,418 INFO L273 TraceCheckUtils]: 5: Hoare triple {990#true} call #t~malloc0.base, #t~malloc0.offset := #Ultimate.alloc(8bv32);~head~0.base, ~head~0.offset := #t~malloc0.base, #t~malloc0.offset;call write~$Pointer$(0bv32, 0bv32, ~head~0.base, ~head~0.offset, 4bv32);call write~intINTTYPE4(0bv32, ~head~0.base, ~bvadd32(4bv32, ~head~0.offset), 4bv32);~item~0.base, ~item~0.offset := ~head~0.base, ~head~0.offset;~status~0 := 0bv32; {990#true} is VALID [2018-11-18 21:52:00,418 INFO L273 TraceCheckUtils]: 6: Hoare triple {990#true} assume true; {990#true} is VALID [2018-11-18 21:52:00,424 INFO L273 TraceCheckUtils]: 7: Hoare triple {990#true} assume !!(0bv32 != #t~nondet1);havoc #t~nondet1;call #t~malloc2.base, #t~malloc2.offset := #Ultimate.alloc(8bv32);call write~$Pointer$(#t~malloc2.base, #t~malloc2.offset, ~item~0.base, ~item~0.offset, 4bv32);call #t~mem3.base, #t~mem3.offset := read~$Pointer$(~item~0.base, ~item~0.offset, 4bv32);~item~0.base, ~item~0.offset := #t~mem3.base, #t~mem3.offset;havoc #t~mem3.base, #t~mem3.offset;call write~$Pointer$(0bv32, 0bv32, ~item~0.base, ~item~0.offset, 4bv32); {1016#(not (= main_~item~0.base (_ bv0 32)))} is VALID [2018-11-18 21:52:00,424 INFO L273 TraceCheckUtils]: 8: Hoare triple {1016#(not (= main_~item~0.base (_ bv0 32)))} assume 0bv32 == ~status~0;call write~intINTTYPE4(1bv32, ~item~0.base, ~bvadd32(4bv32, ~item~0.offset), 4bv32);~status~0 := 1bv32; {1016#(not (= main_~item~0.base (_ bv0 32)))} is VALID [2018-11-18 21:52:00,425 INFO L273 TraceCheckUtils]: 9: Hoare triple {1016#(not (= main_~item~0.base (_ bv0 32)))} assume true; {1016#(not (= main_~item~0.base (_ bv0 32)))} is VALID [2018-11-18 21:52:00,425 INFO L273 TraceCheckUtils]: 10: Hoare triple {1016#(not (= main_~item~0.base (_ bv0 32)))} assume !!(~head~0.base != 0bv32 || ~head~0.offset != 0bv32); {1016#(not (= main_~item~0.base (_ bv0 32)))} is VALID [2018-11-18 21:52:00,426 INFO L273 TraceCheckUtils]: 11: Hoare triple {1016#(not (= main_~item~0.base (_ bv0 32)))} assume true; {1016#(not (= main_~item~0.base (_ bv0 32)))} is VALID [2018-11-18 21:52:00,427 INFO L273 TraceCheckUtils]: 12: Hoare triple {1016#(not (= main_~item~0.base (_ bv0 32)))} assume true; {1016#(not (= main_~item~0.base (_ bv0 32)))} is VALID [2018-11-18 21:52:00,427 INFO L273 TraceCheckUtils]: 13: Hoare triple {1016#(not (= main_~item~0.base (_ bv0 32)))} assume !(~item~0.base != 0bv32 || ~item~0.offset != 0bv32); {991#false} is VALID [2018-11-18 21:52:00,428 INFO L273 TraceCheckUtils]: 14: Hoare triple {991#false} assume !false; {991#false} is VALID [2018-11-18 21:52:00,433 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 21:52:00,433 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 21:52:00,438 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 21:52:00,438 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 21:52:00,439 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-11-18 21:52:00,439 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 21:52:00,439 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2018-11-18 21:52:00,473 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 21:52:00,474 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 21:52:00,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 21:52:00,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 21:52:00,475 INFO L87 Difference]: Start difference. First operand 79 states and 87 transitions. Second operand 3 states. [2018-11-18 21:52:00,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:52:00,710 INFO L93 Difference]: Finished difference Result 79 states and 87 transitions. [2018-11-18 21:52:00,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 21:52:00,710 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-11-18 21:52:00,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 21:52:00,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 21:52:00,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 87 transitions. [2018-11-18 21:52:00,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 21:52:00,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 87 transitions. [2018-11-18 21:52:00,715 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 87 transitions. [2018-11-18 21:52:00,823 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 87 edges. 87 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:52:00,826 INFO L225 Difference]: With dead ends: 79 [2018-11-18 21:52:00,826 INFO L226 Difference]: Without dead ends: 77 [2018-11-18 21:52:00,827 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 21:52:00,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2018-11-18 21:52:00,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2018-11-18 21:52:00,864 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 21:52:00,864 INFO L82 GeneralOperation]: Start isEquivalent. First operand 77 states. Second operand 77 states. [2018-11-18 21:52:00,864 INFO L74 IsIncluded]: Start isIncluded. First operand 77 states. Second operand 77 states. [2018-11-18 21:52:00,864 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 77 states. [2018-11-18 21:52:00,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:52:00,868 INFO L93 Difference]: Finished difference Result 77 states and 85 transitions. [2018-11-18 21:52:00,868 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 85 transitions. [2018-11-18 21:52:00,869 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:52:00,869 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:52:00,869 INFO L74 IsIncluded]: Start isIncluded. First operand 77 states. Second operand 77 states. [2018-11-18 21:52:00,869 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 77 states. [2018-11-18 21:52:00,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:52:00,873 INFO L93 Difference]: Finished difference Result 77 states and 85 transitions. [2018-11-18 21:52:00,873 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 85 transitions. [2018-11-18 21:52:00,874 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:52:00,875 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:52:00,875 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 21:52:00,875 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 21:52:00,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2018-11-18 21:52:00,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 85 transitions. [2018-11-18 21:52:00,878 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 85 transitions. Word has length 15 [2018-11-18 21:52:00,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 21:52:00,879 INFO L480 AbstractCegarLoop]: Abstraction has 77 states and 85 transitions. [2018-11-18 21:52:00,879 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 21:52:00,879 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 85 transitions. [2018-11-18 21:52:00,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-18 21:52:00,880 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 21:52:00,880 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 21:52:00,881 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 21:52:00,881 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 21:52:00,881 INFO L82 PathProgramCache]: Analyzing trace with hash -1417854658, now seen corresponding path program 1 times [2018-11-18 21:52:00,882 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 21:52:00,882 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 5 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 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 21:52:00,907 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 21:52:00,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:52:00,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:52:00,953 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 21:52:01,034 INFO L256 TraceCheckUtils]: 0: Hoare triple {1367#true} call ULTIMATE.init(); {1367#true} is VALID [2018-11-18 21:52:01,034 INFO L273 TraceCheckUtils]: 1: Hoare triple {1367#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1]; {1367#true} is VALID [2018-11-18 21:52:01,035 INFO L273 TraceCheckUtils]: 2: Hoare triple {1367#true} assume true; {1367#true} is VALID [2018-11-18 21:52:01,035 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {1367#true} {1367#true} #359#return; {1367#true} is VALID [2018-11-18 21:52:01,035 INFO L256 TraceCheckUtils]: 4: Hoare triple {1367#true} call #t~ret24 := main(); {1367#true} is VALID [2018-11-18 21:52:01,036 INFO L273 TraceCheckUtils]: 5: Hoare triple {1367#true} call #t~malloc0.base, #t~malloc0.offset := #Ultimate.alloc(8bv32);~head~0.base, ~head~0.offset := #t~malloc0.base, #t~malloc0.offset;call write~$Pointer$(0bv32, 0bv32, ~head~0.base, ~head~0.offset, 4bv32);call write~intINTTYPE4(0bv32, ~head~0.base, ~bvadd32(4bv32, ~head~0.offset), 4bv32);~item~0.base, ~item~0.offset := ~head~0.base, ~head~0.offset;~status~0 := 0bv32; {1387#(= main_~status~0 (_ bv0 32))} is VALID [2018-11-18 21:52:01,037 INFO L273 TraceCheckUtils]: 6: Hoare triple {1387#(= main_~status~0 (_ bv0 32))} assume true; {1387#(= main_~status~0 (_ bv0 32))} is VALID [2018-11-18 21:52:01,048 INFO L273 TraceCheckUtils]: 7: Hoare triple {1387#(= main_~status~0 (_ bv0 32))} assume !(0bv32 != #t~nondet1);havoc #t~nondet1; {1387#(= main_~status~0 (_ bv0 32))} is VALID [2018-11-18 21:52:01,049 INFO L273 TraceCheckUtils]: 8: Hoare triple {1387#(= main_~status~0 (_ bv0 32))} assume true; {1387#(= main_~status~0 (_ bv0 32))} is VALID [2018-11-18 21:52:01,049 INFO L273 TraceCheckUtils]: 9: Hoare triple {1387#(= main_~status~0 (_ bv0 32))} assume !!(~head~0.base != 0bv32 || ~head~0.offset != 0bv32); {1387#(= main_~status~0 (_ bv0 32))} is VALID [2018-11-18 21:52:01,050 INFO L273 TraceCheckUtils]: 10: Hoare triple {1387#(= main_~status~0 (_ bv0 32))} assume true; {1387#(= main_~status~0 (_ bv0 32))} is VALID [2018-11-18 21:52:01,050 INFO L273 TraceCheckUtils]: 11: Hoare triple {1387#(= main_~status~0 (_ bv0 32))} assume 1bv32 == ~status~0; {1368#false} is VALID [2018-11-18 21:52:01,051 INFO L273 TraceCheckUtils]: 12: Hoare triple {1368#false} assume true; {1368#false} is VALID [2018-11-18 21:52:01,051 INFO L273 TraceCheckUtils]: 13: Hoare triple {1368#false} assume !!(~head~0.base != 0bv32 || ~head~0.offset != 0bv32); {1368#false} is VALID [2018-11-18 21:52:01,051 INFO L273 TraceCheckUtils]: 14: Hoare triple {1368#false} assume true; {1368#false} is VALID [2018-11-18 21:52:01,052 INFO L273 TraceCheckUtils]: 15: Hoare triple {1368#false} assume true;call #t~mem4.base, #t~mem4.offset := read~$Pointer$(~head~0.base, ~head~0.offset, 4bv32); {1368#false} is VALID [2018-11-18 21:52:01,052 INFO L273 TraceCheckUtils]: 16: Hoare triple {1368#false} assume !(#t~mem4.base != 0bv32 || #t~mem4.offset != 0bv32);havoc #t~mem4.base, #t~mem4.offset; {1368#false} is VALID [2018-11-18 21:52:01,052 INFO L273 TraceCheckUtils]: 17: Hoare triple {1368#false} assume !false; {1368#false} is VALID [2018-11-18 21:52:01,054 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 21:52:01,055 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 21:52:01,059 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 21:52:01,060 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 21:52:01,060 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2018-11-18 21:52:01,061 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 21:52:01,061 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2018-11-18 21:52:01,089 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 18 edges. 18 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:52:01,089 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 21:52:01,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 21:52:01,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 21:52:01,090 INFO L87 Difference]: Start difference. First operand 77 states and 85 transitions. Second operand 3 states. [2018-11-18 21:52:01,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:52:01,424 INFO L93 Difference]: Finished difference Result 167 states and 189 transitions. [2018-11-18 21:52:01,424 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 21:52:01,424 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2018-11-18 21:52:01,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 21:52:01,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 21:52:01,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 189 transitions. [2018-11-18 21:52:01,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 21:52:01,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 189 transitions. [2018-11-18 21:52:01,431 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 189 transitions. [2018-11-18 21:52:01,775 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 189 edges. 189 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:52:01,778 INFO L225 Difference]: With dead ends: 167 [2018-11-18 21:52:01,778 INFO L226 Difference]: Without dead ends: 96 [2018-11-18 21:52:01,780 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 21:52:01,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2018-11-18 21:52:01,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 86. [2018-11-18 21:52:01,810 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 21:52:01,810 INFO L82 GeneralOperation]: Start isEquivalent. First operand 96 states. Second operand 86 states. [2018-11-18 21:52:01,810 INFO L74 IsIncluded]: Start isIncluded. First operand 96 states. Second operand 86 states. [2018-11-18 21:52:01,811 INFO L87 Difference]: Start difference. First operand 96 states. Second operand 86 states. [2018-11-18 21:52:01,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:52:01,814 INFO L93 Difference]: Finished difference Result 96 states and 106 transitions. [2018-11-18 21:52:01,815 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 106 transitions. [2018-11-18 21:52:01,815 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:52:01,816 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:52:01,816 INFO L74 IsIncluded]: Start isIncluded. First operand 86 states. Second operand 96 states. [2018-11-18 21:52:01,816 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 96 states. [2018-11-18 21:52:01,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:52:01,820 INFO L93 Difference]: Finished difference Result 96 states and 106 transitions. [2018-11-18 21:52:01,820 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 106 transitions. [2018-11-18 21:52:01,821 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:52:01,821 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:52:01,821 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 21:52:01,821 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 21:52:01,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2018-11-18 21:52:01,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 95 transitions. [2018-11-18 21:52:01,825 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 95 transitions. Word has length 18 [2018-11-18 21:52:01,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 21:52:01,825 INFO L480 AbstractCegarLoop]: Abstraction has 86 states and 95 transitions. [2018-11-18 21:52:01,825 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 21:52:01,825 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 95 transitions. [2018-11-18 21:52:01,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 21:52:01,826 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 21:52:01,826 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 21:52:01,827 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 21:52:01,827 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 21:52:01,827 INFO L82 PathProgramCache]: Analyzing trace with hash -236724551, now seen corresponding path program 1 times [2018-11-18 21:52:01,828 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 21:52:01,828 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 6 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 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 21:52:01,854 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 21:52:01,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:52:01,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:52:01,890 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 21:52:01,932 INFO L256 TraceCheckUtils]: 0: Hoare triple {1898#true} call ULTIMATE.init(); {1898#true} is VALID [2018-11-18 21:52:01,933 INFO L273 TraceCheckUtils]: 1: Hoare triple {1898#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1]; {1898#true} is VALID [2018-11-18 21:52:01,933 INFO L273 TraceCheckUtils]: 2: Hoare triple {1898#true} assume true; {1898#true} is VALID [2018-11-18 21:52:01,934 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {1898#true} {1898#true} #359#return; {1898#true} is VALID [2018-11-18 21:52:01,934 INFO L256 TraceCheckUtils]: 4: Hoare triple {1898#true} call #t~ret24 := main(); {1898#true} is VALID [2018-11-18 21:52:01,935 INFO L273 TraceCheckUtils]: 5: Hoare triple {1898#true} call #t~malloc0.base, #t~malloc0.offset := #Ultimate.alloc(8bv32);~head~0.base, ~head~0.offset := #t~malloc0.base, #t~malloc0.offset;call write~$Pointer$(0bv32, 0bv32, ~head~0.base, ~head~0.offset, 4bv32);call write~intINTTYPE4(0bv32, ~head~0.base, ~bvadd32(4bv32, ~head~0.offset), 4bv32);~item~0.base, ~item~0.offset := ~head~0.base, ~head~0.offset;~status~0 := 0bv32; {1918#(= main_~status~0 (_ bv0 32))} is VALID [2018-11-18 21:52:01,935 INFO L273 TraceCheckUtils]: 6: Hoare triple {1918#(= main_~status~0 (_ bv0 32))} assume true; {1918#(= main_~status~0 (_ bv0 32))} is VALID [2018-11-18 21:52:01,937 INFO L273 TraceCheckUtils]: 7: Hoare triple {1918#(= main_~status~0 (_ bv0 32))} assume !(0bv32 != #t~nondet1);havoc #t~nondet1; {1918#(= main_~status~0 (_ bv0 32))} is VALID [2018-11-18 21:52:01,940 INFO L273 TraceCheckUtils]: 8: Hoare triple {1918#(= main_~status~0 (_ bv0 32))} assume true; {1918#(= main_~status~0 (_ bv0 32))} is VALID [2018-11-18 21:52:01,943 INFO L273 TraceCheckUtils]: 9: Hoare triple {1918#(= main_~status~0 (_ bv0 32))} assume !!(~head~0.base != 0bv32 || ~head~0.offset != 0bv32); {1918#(= main_~status~0 (_ bv0 32))} is VALID [2018-11-18 21:52:01,943 INFO L273 TraceCheckUtils]: 10: Hoare triple {1918#(= main_~status~0 (_ bv0 32))} assume true; {1918#(= main_~status~0 (_ bv0 32))} is VALID [2018-11-18 21:52:01,945 INFO L273 TraceCheckUtils]: 11: Hoare triple {1918#(= main_~status~0 (_ bv0 32))} assume !(1bv32 == ~status~0); {1918#(= main_~status~0 (_ bv0 32))} is VALID [2018-11-18 21:52:01,945 INFO L273 TraceCheckUtils]: 12: Hoare triple {1918#(= main_~status~0 (_ bv0 32))} assume !(2bv32 == ~status~0); {1918#(= main_~status~0 (_ bv0 32))} is VALID [2018-11-18 21:52:01,948 INFO L273 TraceCheckUtils]: 13: Hoare triple {1918#(= main_~status~0 (_ bv0 32))} assume !(3bv32 == ~status~0); {1918#(= main_~status~0 (_ bv0 32))} is VALID [2018-11-18 21:52:01,948 INFO L273 TraceCheckUtils]: 14: Hoare triple {1918#(= main_~status~0 (_ bv0 32))} call #t~mem18.base, #t~mem18.offset := read~$Pointer$(~head~0.base, ~head~0.offset, 4bv32);~item~0.base, ~item~0.offset := #t~mem18.base, #t~mem18.offset;havoc #t~mem18.base, #t~mem18.offset; {1918#(= main_~status~0 (_ bv0 32))} is VALID [2018-11-18 21:52:01,950 INFO L273 TraceCheckUtils]: 15: Hoare triple {1918#(= main_~status~0 (_ bv0 32))} assume true; {1918#(= main_~status~0 (_ bv0 32))} is VALID [2018-11-18 21:52:01,950 INFO L273 TraceCheckUtils]: 16: Hoare triple {1918#(= main_~status~0 (_ bv0 32))} assume !!((~item~0.base != 0bv32 || ~item~0.offset != 0bv32) && 0bv32 != #t~nondet19);havoc #t~nondet19; {1918#(= main_~status~0 (_ bv0 32))} is VALID [2018-11-18 21:52:01,953 INFO L273 TraceCheckUtils]: 17: Hoare triple {1918#(= main_~status~0 (_ bv0 32))} assume true;#t~short21 := 0bv32 == ~status~0; {1955#|main_#t~short21|} is VALID [2018-11-18 21:52:01,953 INFO L273 TraceCheckUtils]: 18: Hoare triple {1955#|main_#t~short21|} assume #t~short21; {1955#|main_#t~short21|} is VALID [2018-11-18 21:52:01,955 INFO L273 TraceCheckUtils]: 19: Hoare triple {1955#|main_#t~short21|} assume !#t~short21;havoc #t~short21;havoc #t~mem20; {1899#false} is VALID [2018-11-18 21:52:01,955 INFO L273 TraceCheckUtils]: 20: Hoare triple {1899#false} assume !false; {1899#false} is VALID [2018-11-18 21:52:01,956 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 21:52:01,956 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 21:52:01,958 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 21:52:01,958 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 21:52:01,958 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2018-11-18 21:52:01,958 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 21:52:01,959 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2018-11-18 21:52:01,982 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 21 edges. 21 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:52:01,983 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 21:52:01,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 21:52:01,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 21:52:01,984 INFO L87 Difference]: Start difference. First operand 86 states and 95 transitions. Second operand 4 states. [2018-11-18 21:52:02,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:52:02,524 INFO L93 Difference]: Finished difference Result 104 states and 117 transitions. [2018-11-18 21:52:02,524 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 21:52:02,524 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2018-11-18 21:52:02,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 21:52:02,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 21:52:02,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 117 transitions. [2018-11-18 21:52:02,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 21:52:02,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 117 transitions. [2018-11-18 21:52:02,530 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 117 transitions. [2018-11-18 21:52:02,680 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 117 edges. 117 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:52:02,683 INFO L225 Difference]: With dead ends: 104 [2018-11-18 21:52:02,683 INFO L226 Difference]: Without dead ends: 81 [2018-11-18 21:52:02,684 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 21:52:02,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2018-11-18 21:52:02,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2018-11-18 21:52:02,720 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 21:52:02,720 INFO L82 GeneralOperation]: Start isEquivalent. First operand 81 states. Second operand 81 states. [2018-11-18 21:52:02,721 INFO L74 IsIncluded]: Start isIncluded. First operand 81 states. Second operand 81 states. [2018-11-18 21:52:02,721 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 81 states. [2018-11-18 21:52:02,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:52:02,724 INFO L93 Difference]: Finished difference Result 81 states and 89 transitions. [2018-11-18 21:52:02,724 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 89 transitions. [2018-11-18 21:52:02,725 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:52:02,725 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:52:02,725 INFO L74 IsIncluded]: Start isIncluded. First operand 81 states. Second operand 81 states. [2018-11-18 21:52:02,725 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 81 states. [2018-11-18 21:52:02,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:52:02,729 INFO L93 Difference]: Finished difference Result 81 states and 89 transitions. [2018-11-18 21:52:02,729 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 89 transitions. [2018-11-18 21:52:02,729 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:52:02,729 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:52:02,730 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 21:52:02,730 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 21:52:02,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2018-11-18 21:52:02,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 89 transitions. [2018-11-18 21:52:02,733 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 89 transitions. Word has length 21 [2018-11-18 21:52:02,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 21:52:02,733 INFO L480 AbstractCegarLoop]: Abstraction has 81 states and 89 transitions. [2018-11-18 21:52:02,733 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 21:52:02,733 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 89 transitions. [2018-11-18 21:52:02,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-18 21:52:02,734 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 21:52:02,734 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 21:52:02,735 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 21:52:02,735 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 21:52:02,736 INFO L82 PathProgramCache]: Analyzing trace with hash -1486307260, now seen corresponding path program 1 times [2018-11-18 21:52:02,736 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 21:52:02,736 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 7 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 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 21:52:02,753 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 21:52:02,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:52:02,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:52:02,810 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 21:52:02,903 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 6 treesize of output 5 [2018-11-18 21:52:02,908 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:02,923 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 21:52:02,924 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:15 [2018-11-18 21:52:02,930 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-11-18 21:52:03,056 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 21:52:03,071 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 21:52:03,073 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-11-18 21:52:03,075 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:03,153 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2018-11-18 21:52:03,161 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 21:52:03,164 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:03,202 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 20 [2018-11-18 21:52:03,208 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 21:52:03,210 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:03,228 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 21:52:03,237 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 21:52:03,259 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 21:52:03,260 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 4 variables, input treesize:45, output treesize:31 [2018-11-18 21:52:03,288 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-11-18 21:52:03,866 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2018-11-18 21:52:03,886 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 5 treesize of output 1 [2018-11-18 21:52:03,888 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:03,923 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 9 [2018-11-18 21:52:03,925 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:03,934 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 21:52:03,942 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 21:52:03,942 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:35, output treesize:4 [2018-11-18 21:52:03,946 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-11-18 21:52:03,955 INFO L256 TraceCheckUtils]: 0: Hoare triple {2339#true} call ULTIMATE.init(); {2339#true} is VALID [2018-11-18 21:52:03,956 INFO L273 TraceCheckUtils]: 1: Hoare triple {2339#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1]; {2339#true} is VALID [2018-11-18 21:52:03,956 INFO L273 TraceCheckUtils]: 2: Hoare triple {2339#true} assume true; {2339#true} is VALID [2018-11-18 21:52:03,956 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {2339#true} {2339#true} #359#return; {2339#true} is VALID [2018-11-18 21:52:03,957 INFO L256 TraceCheckUtils]: 4: Hoare triple {2339#true} call #t~ret24 := main(); {2339#true} is VALID [2018-11-18 21:52:03,960 INFO L273 TraceCheckUtils]: 5: Hoare triple {2339#true} call #t~malloc0.base, #t~malloc0.offset := #Ultimate.alloc(8bv32);~head~0.base, ~head~0.offset := #t~malloc0.base, #t~malloc0.offset;call write~$Pointer$(0bv32, 0bv32, ~head~0.base, ~head~0.offset, 4bv32);call write~intINTTYPE4(0bv32, ~head~0.base, ~bvadd32(4bv32, ~head~0.offset), 4bv32);~item~0.base, ~item~0.offset := ~head~0.base, ~head~0.offset;~status~0 := 0bv32; {2359#(and (= main_~item~0.base main_~head~0.base) (= main_~head~0.offset main_~item~0.offset) (= (bvadd (select |#valid| main_~item~0.base) (_ bv1 1)) (_ bv0 1)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:03,961 INFO L273 TraceCheckUtils]: 6: Hoare triple {2359#(and (= main_~item~0.base main_~head~0.base) (= main_~head~0.offset main_~item~0.offset) (= (bvadd (select |#valid| main_~item~0.base) (_ bv1 1)) (_ bv0 1)) (= (_ bv0 32) main_~head~0.offset))} assume true; {2359#(and (= main_~item~0.base main_~head~0.base) (= main_~head~0.offset main_~item~0.offset) (= (bvadd (select |#valid| main_~item~0.base) (_ bv1 1)) (_ bv0 1)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:03,963 INFO L273 TraceCheckUtils]: 7: Hoare triple {2359#(and (= main_~item~0.base main_~head~0.base) (= main_~head~0.offset main_~item~0.offset) (= (bvadd (select |#valid| main_~item~0.base) (_ bv1 1)) (_ bv0 1)) (= (_ bv0 32) main_~head~0.offset))} assume !!(0bv32 != #t~nondet1);havoc #t~nondet1;call #t~malloc2.base, #t~malloc2.offset := #Ultimate.alloc(8bv32);call write~$Pointer$(#t~malloc2.base, #t~malloc2.offset, ~item~0.base, ~item~0.offset, 4bv32);call #t~mem3.base, #t~mem3.offset := read~$Pointer$(~item~0.base, ~item~0.offset, 4bv32);~item~0.base, ~item~0.offset := #t~mem3.base, #t~mem3.offset;havoc #t~mem3.base, #t~mem3.offset;call write~$Pointer$(0bv32, 0bv32, ~item~0.base, ~item~0.offset, 4bv32); {2366#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (exists ((main_~item~0.offset (_ BitVec 32))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~item~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:03,965 INFO L273 TraceCheckUtils]: 8: Hoare triple {2366#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (exists ((main_~item~0.offset (_ BitVec 32))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~item~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} assume 0bv32 == ~status~0;call write~intINTTYPE4(1bv32, ~item~0.base, ~bvadd32(4bv32, ~item~0.offset), 4bv32);~status~0 := 1bv32; {2366#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (exists ((main_~item~0.offset (_ BitVec 32))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~item~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:03,967 INFO L273 TraceCheckUtils]: 9: Hoare triple {2366#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (exists ((main_~item~0.offset (_ BitVec 32))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~item~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} assume true; {2366#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (exists ((main_~item~0.offset (_ BitVec 32))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~item~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:03,969 INFO L273 TraceCheckUtils]: 10: Hoare triple {2366#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (exists ((main_~item~0.offset (_ BitVec 32))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~item~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} assume !!(~head~0.base != 0bv32 || ~head~0.offset != 0bv32); {2366#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (exists ((main_~item~0.offset (_ BitVec 32))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~item~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:03,970 INFO L273 TraceCheckUtils]: 11: Hoare triple {2366#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (exists ((main_~item~0.offset (_ BitVec 32))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~item~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} assume true; {2366#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (exists ((main_~item~0.offset (_ BitVec 32))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~item~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:03,970 INFO L273 TraceCheckUtils]: 12: Hoare triple {2366#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (exists ((main_~item~0.offset (_ BitVec 32))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~item~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} assume true; {2366#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (exists ((main_~item~0.offset (_ BitVec 32))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~item~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:03,972 INFO L273 TraceCheckUtils]: 13: Hoare triple {2366#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (exists ((main_~item~0.offset (_ BitVec 32))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~item~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} assume !!(~item~0.base != 0bv32 || ~item~0.offset != 0bv32); {2366#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (exists ((main_~item~0.offset (_ BitVec 32))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~item~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:03,973 INFO L273 TraceCheckUtils]: 14: Hoare triple {2366#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (exists ((main_~item~0.offset (_ BitVec 32))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~item~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} assume true; {2366#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (exists ((main_~item~0.offset (_ BitVec 32))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~item~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:03,974 INFO L273 TraceCheckUtils]: 15: Hoare triple {2366#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (exists ((main_~item~0.offset (_ BitVec 32))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~item~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} assume true; {2366#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (exists ((main_~item~0.offset (_ BitVec 32))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~item~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:03,975 INFO L273 TraceCheckUtils]: 16: Hoare triple {2366#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (exists ((main_~item~0.offset (_ BitVec 32))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~item~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} assume !(0bv32 != #t~nondet1);havoc #t~nondet1; {2366#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (exists ((main_~item~0.offset (_ BitVec 32))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~item~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:03,976 INFO L273 TraceCheckUtils]: 17: Hoare triple {2366#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (exists ((main_~item~0.offset (_ BitVec 32))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~item~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} assume true; {2366#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (exists ((main_~item~0.offset (_ BitVec 32))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~item~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:03,977 INFO L273 TraceCheckUtils]: 18: Hoare triple {2366#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (exists ((main_~item~0.offset (_ BitVec 32))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~item~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} assume !!(~head~0.base != 0bv32 || ~head~0.offset != 0bv32); {2366#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (exists ((main_~item~0.offset (_ BitVec 32))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~item~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:03,978 INFO L273 TraceCheckUtils]: 19: Hoare triple {2366#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (exists ((main_~item~0.offset (_ BitVec 32))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~item~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} assume true; {2366#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (exists ((main_~item~0.offset (_ BitVec 32))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~item~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:03,979 INFO L273 TraceCheckUtils]: 20: Hoare triple {2366#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (exists ((main_~item~0.offset (_ BitVec 32))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~item~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} assume 1bv32 == ~status~0; {2366#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (exists ((main_~item~0.offset (_ BitVec 32))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~item~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:03,980 INFO L273 TraceCheckUtils]: 21: Hoare triple {2366#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (exists ((main_~item~0.offset (_ BitVec 32))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~item~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} assume true; {2366#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (exists ((main_~item~0.offset (_ BitVec 32))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~item~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:03,981 INFO L273 TraceCheckUtils]: 22: Hoare triple {2366#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (exists ((main_~item~0.offset (_ BitVec 32))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~item~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} assume !!(~head~0.base != 0bv32 || ~head~0.offset != 0bv32); {2366#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (exists ((main_~item~0.offset (_ BitVec 32))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~item~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:03,982 INFO L273 TraceCheckUtils]: 23: Hoare triple {2366#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (exists ((main_~item~0.offset (_ BitVec 32))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~item~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} assume true; {2366#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (exists ((main_~item~0.offset (_ BitVec 32))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~item~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:03,983 INFO L273 TraceCheckUtils]: 24: Hoare triple {2366#(and (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (exists ((main_~item~0.offset (_ BitVec 32))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) main_~item~0.offset))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} assume true;call #t~mem4.base, #t~mem4.offset := read~$Pointer$(~head~0.base, ~head~0.offset, 4bv32); {2418#(not (= |main_#t~mem4.base| (_ bv0 32)))} is VALID [2018-11-18 21:52:03,984 INFO L273 TraceCheckUtils]: 25: Hoare triple {2418#(not (= |main_#t~mem4.base| (_ bv0 32)))} assume !(#t~mem4.base != 0bv32 || #t~mem4.offset != 0bv32);havoc #t~mem4.base, #t~mem4.offset; {2340#false} is VALID [2018-11-18 21:52:03,984 INFO L273 TraceCheckUtils]: 26: Hoare triple {2340#false} assume !false; {2340#false} is VALID [2018-11-18 21:52:03,993 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 21:52:03,993 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 21:52:04,160 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 26 [2018-11-18 21:52:04,269 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-18 21:52:04,292 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:04,337 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 15 [2018-11-18 21:52:04,356 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 6 treesize of output 1 [2018-11-18 21:52:04,366 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:04,374 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 21:52:04,440 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 21 [2018-11-18 21:52:04,457 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 16 treesize of output 10 [2018-11-18 21:52:04,462 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:04,500 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 21:52:04,500 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 21:52:04,501 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2018-11-18 21:52:04,507 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:04,544 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 10 treesize of output 3 [2018-11-18 21:52:04,548 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:04,559 INFO L267 ElimStorePlain]: Start of recursive call 6: 3 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 21:52:04,577 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-11-18 21:52:04,615 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2018-11-18 21:52:04,616 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 3 variables, input treesize:42, output treesize:37 [2018-11-18 21:52:04,624 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-11-18 21:52:04,921 INFO L273 TraceCheckUtils]: 26: Hoare triple {2340#false} assume !false; {2340#false} is VALID [2018-11-18 21:52:04,922 INFO L273 TraceCheckUtils]: 25: Hoare triple {2418#(not (= |main_#t~mem4.base| (_ bv0 32)))} assume !(#t~mem4.base != 0bv32 || #t~mem4.offset != 0bv32);havoc #t~mem4.base, #t~mem4.offset; {2340#false} is VALID [2018-11-18 21:52:04,923 INFO L273 TraceCheckUtils]: 24: Hoare triple {2431#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} assume true;call #t~mem4.base, #t~mem4.offset := read~$Pointer$(~head~0.base, ~head~0.offset, 4bv32); {2418#(not (= |main_#t~mem4.base| (_ bv0 32)))} is VALID [2018-11-18 21:52:04,924 INFO L273 TraceCheckUtils]: 23: Hoare triple {2431#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} assume true; {2431#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} is VALID [2018-11-18 21:52:04,930 INFO L273 TraceCheckUtils]: 22: Hoare triple {2431#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} assume !!(~head~0.base != 0bv32 || ~head~0.offset != 0bv32); {2431#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} is VALID [2018-11-18 21:52:04,931 INFO L273 TraceCheckUtils]: 21: Hoare triple {2431#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} assume true; {2431#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} is VALID [2018-11-18 21:52:04,931 INFO L273 TraceCheckUtils]: 20: Hoare triple {2431#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} assume 1bv32 == ~status~0; {2431#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} is VALID [2018-11-18 21:52:04,932 INFO L273 TraceCheckUtils]: 19: Hoare triple {2431#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} assume true; {2431#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} is VALID [2018-11-18 21:52:04,932 INFO L273 TraceCheckUtils]: 18: Hoare triple {2431#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} assume !!(~head~0.base != 0bv32 || ~head~0.offset != 0bv32); {2431#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} is VALID [2018-11-18 21:52:04,932 INFO L273 TraceCheckUtils]: 17: Hoare triple {2431#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} assume true; {2431#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} is VALID [2018-11-18 21:52:04,933 INFO L273 TraceCheckUtils]: 16: Hoare triple {2431#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} assume !(0bv32 != #t~nondet1);havoc #t~nondet1; {2431#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} is VALID [2018-11-18 21:52:04,933 INFO L273 TraceCheckUtils]: 15: Hoare triple {2431#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} assume true; {2431#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} is VALID [2018-11-18 21:52:04,933 INFO L273 TraceCheckUtils]: 14: Hoare triple {2431#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} assume true; {2431#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} is VALID [2018-11-18 21:52:04,934 INFO L273 TraceCheckUtils]: 13: Hoare triple {2431#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} assume !!(~item~0.base != 0bv32 || ~item~0.offset != 0bv32); {2431#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} is VALID [2018-11-18 21:52:04,934 INFO L273 TraceCheckUtils]: 12: Hoare triple {2431#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} assume true; {2431#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} is VALID [2018-11-18 21:52:04,935 INFO L273 TraceCheckUtils]: 11: Hoare triple {2431#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} assume true; {2431#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} is VALID [2018-11-18 21:52:04,935 INFO L273 TraceCheckUtils]: 10: Hoare triple {2431#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} assume !!(~head~0.base != 0bv32 || ~head~0.offset != 0bv32); {2431#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} is VALID [2018-11-18 21:52:04,936 INFO L273 TraceCheckUtils]: 9: Hoare triple {2431#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} assume true; {2431#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} is VALID [2018-11-18 21:52:04,937 INFO L273 TraceCheckUtils]: 8: Hoare triple {2431#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} assume 0bv32 == ~status~0;call write~intINTTYPE4(1bv32, ~item~0.base, ~bvadd32(4bv32, ~item~0.offset), 4bv32);~status~0 := 1bv32; {2431#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} is VALID [2018-11-18 21:52:04,953 INFO L273 TraceCheckUtils]: 7: Hoare triple {2483#(and (or (= main_~item~0.base main_~head~0.base) (forall ((v_prenex_2 (_ BitVec 32))) (or (not (= (select |#valid| v_prenex_2) (_ bv0 1))) (= v_prenex_2 (_ bv0 32))))) (or (not (= (select |#valid| main_~head~0.base) (_ bv0 1))) (= (_ bv0 32) main_~head~0.base)) (or (forall ((|v_main_#t~malloc2.base_2| (_ BitVec 32))) (or (not (= (select |#valid| |v_main_#t~malloc2.base_2|) (_ bv0 1))) (= |v_main_#t~malloc2.base_2| (_ bv0 32)))) (= main_~head~0.offset main_~item~0.offset)))} assume !!(0bv32 != #t~nondet1);havoc #t~nondet1;call #t~malloc2.base, #t~malloc2.offset := #Ultimate.alloc(8bv32);call write~$Pointer$(#t~malloc2.base, #t~malloc2.offset, ~item~0.base, ~item~0.offset, 4bv32);call #t~mem3.base, #t~mem3.offset := read~$Pointer$(~item~0.base, ~item~0.offset, 4bv32);~item~0.base, ~item~0.offset := #t~mem3.base, #t~mem3.offset;havoc #t~mem3.base, #t~mem3.offset;call write~$Pointer$(0bv32, 0bv32, ~item~0.base, ~item~0.offset, 4bv32); {2431#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} is VALID [2018-11-18 21:52:04,955 INFO L273 TraceCheckUtils]: 6: Hoare triple {2483#(and (or (= main_~item~0.base main_~head~0.base) (forall ((v_prenex_2 (_ BitVec 32))) (or (not (= (select |#valid| v_prenex_2) (_ bv0 1))) (= v_prenex_2 (_ bv0 32))))) (or (not (= (select |#valid| main_~head~0.base) (_ bv0 1))) (= (_ bv0 32) main_~head~0.base)) (or (forall ((|v_main_#t~malloc2.base_2| (_ BitVec 32))) (or (not (= (select |#valid| |v_main_#t~malloc2.base_2|) (_ bv0 1))) (= |v_main_#t~malloc2.base_2| (_ bv0 32)))) (= main_~head~0.offset main_~item~0.offset)))} assume true; {2483#(and (or (= main_~item~0.base main_~head~0.base) (forall ((v_prenex_2 (_ BitVec 32))) (or (not (= (select |#valid| v_prenex_2) (_ bv0 1))) (= v_prenex_2 (_ bv0 32))))) (or (not (= (select |#valid| main_~head~0.base) (_ bv0 1))) (= (_ bv0 32) main_~head~0.base)) (or (forall ((|v_main_#t~malloc2.base_2| (_ BitVec 32))) (or (not (= (select |#valid| |v_main_#t~malloc2.base_2|) (_ bv0 1))) (= |v_main_#t~malloc2.base_2| (_ bv0 32)))) (= main_~head~0.offset main_~item~0.offset)))} is VALID [2018-11-18 21:52:04,957 INFO L273 TraceCheckUtils]: 5: Hoare triple {2339#true} call #t~malloc0.base, #t~malloc0.offset := #Ultimate.alloc(8bv32);~head~0.base, ~head~0.offset := #t~malloc0.base, #t~malloc0.offset;call write~$Pointer$(0bv32, 0bv32, ~head~0.base, ~head~0.offset, 4bv32);call write~intINTTYPE4(0bv32, ~head~0.base, ~bvadd32(4bv32, ~head~0.offset), 4bv32);~item~0.base, ~item~0.offset := ~head~0.base, ~head~0.offset;~status~0 := 0bv32; {2483#(and (or (= main_~item~0.base main_~head~0.base) (forall ((v_prenex_2 (_ BitVec 32))) (or (not (= (select |#valid| v_prenex_2) (_ bv0 1))) (= v_prenex_2 (_ bv0 32))))) (or (not (= (select |#valid| main_~head~0.base) (_ bv0 1))) (= (_ bv0 32) main_~head~0.base)) (or (forall ((|v_main_#t~malloc2.base_2| (_ BitVec 32))) (or (not (= (select |#valid| |v_main_#t~malloc2.base_2|) (_ bv0 1))) (= |v_main_#t~malloc2.base_2| (_ bv0 32)))) (= main_~head~0.offset main_~item~0.offset)))} is VALID [2018-11-18 21:52:04,957 INFO L256 TraceCheckUtils]: 4: Hoare triple {2339#true} call #t~ret24 := main(); {2339#true} is VALID [2018-11-18 21:52:04,957 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {2339#true} {2339#true} #359#return; {2339#true} is VALID [2018-11-18 21:52:04,957 INFO L273 TraceCheckUtils]: 2: Hoare triple {2339#true} assume true; {2339#true} is VALID [2018-11-18 21:52:04,958 INFO L273 TraceCheckUtils]: 1: Hoare triple {2339#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1]; {2339#true} is VALID [2018-11-18 21:52:04,958 INFO L256 TraceCheckUtils]: 0: Hoare triple {2339#true} call ULTIMATE.init(); {2339#true} is VALID [2018-11-18 21:52:04,960 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 21:52:04,962 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 21:52:04,962 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2018-11-18 21:52:04,962 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2018-11-18 21:52:04,963 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 21:52:04,963 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states. [2018-11-18 21:52:05,125 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 47 edges. 47 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:52:05,125 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 21:52:05,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 21:52:05,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-18 21:52:05,126 INFO L87 Difference]: Start difference. First operand 81 states and 89 transitions. Second operand 7 states. [2018-11-18 21:52:06,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:52:06,749 INFO L93 Difference]: Finished difference Result 150 states and 163 transitions. [2018-11-18 21:52:06,749 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 21:52:06,749 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2018-11-18 21:52:06,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 21:52:06,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-11-18 21:52:06,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 161 transitions. [2018-11-18 21:52:06,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-11-18 21:52:06,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 161 transitions. [2018-11-18 21:52:06,755 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 161 transitions. [2018-11-18 21:52:07,174 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 161 edges. 161 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:52:07,178 INFO L225 Difference]: With dead ends: 150 [2018-11-18 21:52:07,178 INFO L226 Difference]: Without dead ends: 148 [2018-11-18 21:52:07,179 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-11-18 21:52:07,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2018-11-18 21:52:07,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 98. [2018-11-18 21:52:07,232 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 21:52:07,232 INFO L82 GeneralOperation]: Start isEquivalent. First operand 148 states. Second operand 98 states. [2018-11-18 21:52:07,232 INFO L74 IsIncluded]: Start isIncluded. First operand 148 states. Second operand 98 states. [2018-11-18 21:52:07,232 INFO L87 Difference]: Start difference. First operand 148 states. Second operand 98 states. [2018-11-18 21:52:07,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:52:07,236 INFO L93 Difference]: Finished difference Result 148 states and 161 transitions. [2018-11-18 21:52:07,236 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 161 transitions. [2018-11-18 21:52:07,237 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:52:07,237 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:52:07,237 INFO L74 IsIncluded]: Start isIncluded. First operand 98 states. Second operand 148 states. [2018-11-18 21:52:07,237 INFO L87 Difference]: Start difference. First operand 98 states. Second operand 148 states. [2018-11-18 21:52:07,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:52:07,242 INFO L93 Difference]: Finished difference Result 148 states and 161 transitions. [2018-11-18 21:52:07,242 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 161 transitions. [2018-11-18 21:52:07,242 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:52:07,243 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:52:07,243 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 21:52:07,243 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 21:52:07,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2018-11-18 21:52:07,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 108 transitions. [2018-11-18 21:52:07,246 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 108 transitions. Word has length 27 [2018-11-18 21:52:07,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 21:52:07,247 INFO L480 AbstractCegarLoop]: Abstraction has 98 states and 108 transitions. [2018-11-18 21:52:07,247 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 21:52:07,247 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 108 transitions. [2018-11-18 21:52:07,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-18 21:52:07,248 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 21:52:07,248 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 21:52:07,248 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 21:52:07,249 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 21:52:07,249 INFO L82 PathProgramCache]: Analyzing trace with hash -1530243589, now seen corresponding path program 1 times [2018-11-18 21:52:07,249 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 21:52:07,249 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 8 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 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 21:52:07,281 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 21:52:07,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:52:07,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:52:07,331 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 21:52:07,402 INFO L256 TraceCheckUtils]: 0: Hoare triple {3083#true} call ULTIMATE.init(); {3083#true} is VALID [2018-11-18 21:52:07,402 INFO L273 TraceCheckUtils]: 1: Hoare triple {3083#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1]; {3083#true} is VALID [2018-11-18 21:52:07,402 INFO L273 TraceCheckUtils]: 2: Hoare triple {3083#true} assume true; {3083#true} is VALID [2018-11-18 21:52:07,403 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {3083#true} {3083#true} #359#return; {3083#true} is VALID [2018-11-18 21:52:07,403 INFO L256 TraceCheckUtils]: 4: Hoare triple {3083#true} call #t~ret24 := main(); {3083#true} is VALID [2018-11-18 21:52:07,403 INFO L273 TraceCheckUtils]: 5: Hoare triple {3083#true} call #t~malloc0.base, #t~malloc0.offset := #Ultimate.alloc(8bv32);~head~0.base, ~head~0.offset := #t~malloc0.base, #t~malloc0.offset;call write~$Pointer$(0bv32, 0bv32, ~head~0.base, ~head~0.offset, 4bv32);call write~intINTTYPE4(0bv32, ~head~0.base, ~bvadd32(4bv32, ~head~0.offset), 4bv32);~item~0.base, ~item~0.offset := ~head~0.base, ~head~0.offset;~status~0 := 0bv32; {3083#true} is VALID [2018-11-18 21:52:07,403 INFO L273 TraceCheckUtils]: 6: Hoare triple {3083#true} assume true; {3083#true} is VALID [2018-11-18 21:52:07,403 INFO L273 TraceCheckUtils]: 7: Hoare triple {3083#true} assume !!(0bv32 != #t~nondet1);havoc #t~nondet1;call #t~malloc2.base, #t~malloc2.offset := #Ultimate.alloc(8bv32);call write~$Pointer$(#t~malloc2.base, #t~malloc2.offset, ~item~0.base, ~item~0.offset, 4bv32);call #t~mem3.base, #t~mem3.offset := read~$Pointer$(~item~0.base, ~item~0.offset, 4bv32);~item~0.base, ~item~0.offset := #t~mem3.base, #t~mem3.offset;havoc #t~mem3.base, #t~mem3.offset;call write~$Pointer$(0bv32, 0bv32, ~item~0.base, ~item~0.offset, 4bv32); {3083#true} is VALID [2018-11-18 21:52:07,404 INFO L273 TraceCheckUtils]: 8: Hoare triple {3083#true} assume 0bv32 == ~status~0;call write~intINTTYPE4(1bv32, ~item~0.base, ~bvadd32(4bv32, ~item~0.offset), 4bv32);~status~0 := 1bv32; {3112#(= (bvadd main_~status~0 (_ bv4294967295 32)) (_ bv0 32))} is VALID [2018-11-18 21:52:07,404 INFO L273 TraceCheckUtils]: 9: Hoare triple {3112#(= (bvadd main_~status~0 (_ bv4294967295 32)) (_ bv0 32))} assume true; {3112#(= (bvadd main_~status~0 (_ bv4294967295 32)) (_ bv0 32))} is VALID [2018-11-18 21:52:07,405 INFO L273 TraceCheckUtils]: 10: Hoare triple {3112#(= (bvadd main_~status~0 (_ bv4294967295 32)) (_ bv0 32))} assume !!(~head~0.base != 0bv32 || ~head~0.offset != 0bv32); {3112#(= (bvadd main_~status~0 (_ bv4294967295 32)) (_ bv0 32))} is VALID [2018-11-18 21:52:07,405 INFO L273 TraceCheckUtils]: 11: Hoare triple {3112#(= (bvadd main_~status~0 (_ bv4294967295 32)) (_ bv0 32))} assume true; {3112#(= (bvadd main_~status~0 (_ bv4294967295 32)) (_ bv0 32))} is VALID [2018-11-18 21:52:07,411 INFO L273 TraceCheckUtils]: 12: Hoare triple {3112#(= (bvadd main_~status~0 (_ bv4294967295 32)) (_ bv0 32))} assume true; {3112#(= (bvadd main_~status~0 (_ bv4294967295 32)) (_ bv0 32))} is VALID [2018-11-18 21:52:07,411 INFO L273 TraceCheckUtils]: 13: Hoare triple {3112#(= (bvadd main_~status~0 (_ bv4294967295 32)) (_ bv0 32))} assume !!(~item~0.base != 0bv32 || ~item~0.offset != 0bv32); {3112#(= (bvadd main_~status~0 (_ bv4294967295 32)) (_ bv0 32))} is VALID [2018-11-18 21:52:07,417 INFO L273 TraceCheckUtils]: 14: Hoare triple {3112#(= (bvadd main_~status~0 (_ bv4294967295 32)) (_ bv0 32))} assume true; {3112#(= (bvadd main_~status~0 (_ bv4294967295 32)) (_ bv0 32))} is VALID [2018-11-18 21:52:07,417 INFO L273 TraceCheckUtils]: 15: Hoare triple {3112#(= (bvadd main_~status~0 (_ bv4294967295 32)) (_ bv0 32))} assume true; {3112#(= (bvadd main_~status~0 (_ bv4294967295 32)) (_ bv0 32))} is VALID [2018-11-18 21:52:07,417 INFO L273 TraceCheckUtils]: 16: Hoare triple {3112#(= (bvadd main_~status~0 (_ bv4294967295 32)) (_ bv0 32))} assume !(0bv32 != #t~nondet1);havoc #t~nondet1; {3112#(= (bvadd main_~status~0 (_ bv4294967295 32)) (_ bv0 32))} is VALID [2018-11-18 21:52:07,418 INFO L273 TraceCheckUtils]: 17: Hoare triple {3112#(= (bvadd main_~status~0 (_ bv4294967295 32)) (_ bv0 32))} assume true; {3112#(= (bvadd main_~status~0 (_ bv4294967295 32)) (_ bv0 32))} is VALID [2018-11-18 21:52:07,418 INFO L273 TraceCheckUtils]: 18: Hoare triple {3112#(= (bvadd main_~status~0 (_ bv4294967295 32)) (_ bv0 32))} assume !!(~head~0.base != 0bv32 || ~head~0.offset != 0bv32); {3112#(= (bvadd main_~status~0 (_ bv4294967295 32)) (_ bv0 32))} is VALID [2018-11-18 21:52:07,419 INFO L273 TraceCheckUtils]: 19: Hoare triple {3112#(= (bvadd main_~status~0 (_ bv4294967295 32)) (_ bv0 32))} assume true; {3112#(= (bvadd main_~status~0 (_ bv4294967295 32)) (_ bv0 32))} is VALID [2018-11-18 21:52:07,421 INFO L273 TraceCheckUtils]: 20: Hoare triple {3112#(= (bvadd main_~status~0 (_ bv4294967295 32)) (_ bv0 32))} assume !(1bv32 == ~status~0); {3084#false} is VALID [2018-11-18 21:52:07,421 INFO L273 TraceCheckUtils]: 21: Hoare triple {3084#false} assume 2bv32 == ~status~0; {3084#false} is VALID [2018-11-18 21:52:07,422 INFO L273 TraceCheckUtils]: 22: Hoare triple {3084#false} assume true; {3084#false} is VALID [2018-11-18 21:52:07,422 INFO L273 TraceCheckUtils]: 23: Hoare triple {3084#false} assume !!(~head~0.base != 0bv32 || ~head~0.offset != 0bv32); {3084#false} is VALID [2018-11-18 21:52:07,423 INFO L273 TraceCheckUtils]: 24: Hoare triple {3084#false} assume true; {3084#false} is VALID [2018-11-18 21:52:07,423 INFO L273 TraceCheckUtils]: 25: Hoare triple {3084#false} assume true;call #t~mem5.base, #t~mem5.offset := read~$Pointer$(~head~0.base, ~head~0.offset, 4bv32); {3084#false} is VALID [2018-11-18 21:52:07,423 INFO L273 TraceCheckUtils]: 26: Hoare triple {3084#false} assume !(#t~mem5.base != 0bv32 || #t~mem5.offset != 0bv32);havoc #t~mem5.base, #t~mem5.offset; {3084#false} is VALID [2018-11-18 21:52:07,424 INFO L273 TraceCheckUtils]: 27: Hoare triple {3084#false} assume !false; {3084#false} is VALID [2018-11-18 21:52:07,425 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 21:52:07,425 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 21:52:07,427 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 21:52:07,427 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 21:52:07,428 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2018-11-18 21:52:07,428 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 21:52:07,428 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2018-11-18 21:52:07,463 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 28 edges. 28 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:52:07,463 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 21:52:07,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 21:52:07,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 21:52:07,464 INFO L87 Difference]: Start difference. First operand 98 states and 108 transitions. Second operand 3 states. [2018-11-18 21:52:07,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:52:07,765 INFO L93 Difference]: Finished difference Result 197 states and 222 transitions. [2018-11-18 21:52:07,765 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 21:52:07,766 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2018-11-18 21:52:07,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 21:52:07,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 21:52:07,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 197 transitions. [2018-11-18 21:52:07,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 21:52:07,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 197 transitions. [2018-11-18 21:52:07,772 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 197 transitions. [2018-11-18 21:52:08,024 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 197 edges. 197 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:52:08,027 INFO L225 Difference]: With dead ends: 197 [2018-11-18 21:52:08,028 INFO L226 Difference]: Without dead ends: 125 [2018-11-18 21:52:08,029 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 21:52:08,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2018-11-18 21:52:08,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 114. [2018-11-18 21:52:08,418 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 21:52:08,418 INFO L82 GeneralOperation]: Start isEquivalent. First operand 125 states. Second operand 114 states. [2018-11-18 21:52:08,418 INFO L74 IsIncluded]: Start isIncluded. First operand 125 states. Second operand 114 states. [2018-11-18 21:52:08,418 INFO L87 Difference]: Start difference. First operand 125 states. Second operand 114 states. [2018-11-18 21:52:08,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:52:08,421 INFO L93 Difference]: Finished difference Result 125 states and 136 transitions. [2018-11-18 21:52:08,421 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 136 transitions. [2018-11-18 21:52:08,421 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:52:08,422 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:52:08,422 INFO L74 IsIncluded]: Start isIncluded. First operand 114 states. Second operand 125 states. [2018-11-18 21:52:08,422 INFO L87 Difference]: Start difference. First operand 114 states. Second operand 125 states. [2018-11-18 21:52:08,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:52:08,425 INFO L93 Difference]: Finished difference Result 125 states and 136 transitions. [2018-11-18 21:52:08,425 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 136 transitions. [2018-11-18 21:52:08,426 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:52:08,426 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:52:08,426 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 21:52:08,426 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 21:52:08,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2018-11-18 21:52:08,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 124 transitions. [2018-11-18 21:52:08,429 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 124 transitions. Word has length 28 [2018-11-18 21:52:08,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 21:52:08,430 INFO L480 AbstractCegarLoop]: Abstraction has 114 states and 124 transitions. [2018-11-18 21:52:08,430 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 21:52:08,430 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 124 transitions. [2018-11-18 21:52:08,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-18 21:52:08,430 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 21:52:08,431 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 21:52:08,431 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 21:52:08,431 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 21:52:08,431 INFO L82 PathProgramCache]: Analyzing trace with hash -1371792117, now seen corresponding path program 1 times [2018-11-18 21:52:08,432 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 21:52:08,432 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 9 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 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 21:52:08,447 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 21:52:08,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:52:08,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:52:08,519 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 21:52:08,549 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 6 treesize of output 5 [2018-11-18 21:52:08,554 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:08,566 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 21:52:08,567 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:15 [2018-11-18 21:52:08,570 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-11-18 21:52:08,653 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 21:52:08,671 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 21:52:08,672 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-11-18 21:52:08,674 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:08,840 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2018-11-18 21:52:08,849 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 21:52:08,850 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:08,926 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 20 [2018-11-18 21:52:08,939 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 11 [2018-11-18 21:52:08,940 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:08,959 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 21:52:08,979 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 21:52:09,029 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2018-11-18 21:52:09,038 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 21:52:09,039 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:09,066 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 20 [2018-11-18 21:52:09,076 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 11 [2018-11-18 21:52:09,079 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:09,135 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 21:52:09,145 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 21:52:09,172 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 21:52:09,172 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 3 variables, input treesize:73, output treesize:47 [2018-11-18 21:52:09,283 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-11-18 21:52:09,378 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 18 [2018-11-18 21:52:09,387 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 18 treesize of output 17 [2018-11-18 21:52:09,391 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:09,395 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 21:52:09,421 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 21:52:09,421 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:74, output treesize:66 [2018-11-18 21:52:09,860 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 54 [2018-11-18 21:52:09,868 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 46 treesize of output 33 [2018-11-18 21:52:09,871 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:09,893 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 5 treesize of output 3 [2018-11-18 21:52:09,894 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:09,907 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 21:52:09,934 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 28 [2018-11-18 21:52:09,941 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 14 [2018-11-18 21:52:09,948 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:09,961 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 5 treesize of output 3 [2018-11-18 21:52:09,963 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:09,973 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 21:52:09,986 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 21:52:09,986 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:77, output treesize:13 [2018-11-18 21:52:09,994 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-11-18 21:52:10,127 INFO L256 TraceCheckUtils]: 0: Hoare triple {3766#true} call ULTIMATE.init(); {3766#true} is VALID [2018-11-18 21:52:10,128 INFO L273 TraceCheckUtils]: 1: Hoare triple {3766#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1]; {3766#true} is VALID [2018-11-18 21:52:10,128 INFO L273 TraceCheckUtils]: 2: Hoare triple {3766#true} assume true; {3766#true} is VALID [2018-11-18 21:52:10,129 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {3766#true} {3766#true} #359#return; {3766#true} is VALID [2018-11-18 21:52:10,129 INFO L256 TraceCheckUtils]: 4: Hoare triple {3766#true} call #t~ret24 := main(); {3766#true} is VALID [2018-11-18 21:52:10,131 INFO L273 TraceCheckUtils]: 5: Hoare triple {3766#true} call #t~malloc0.base, #t~malloc0.offset := #Ultimate.alloc(8bv32);~head~0.base, ~head~0.offset := #t~malloc0.base, #t~malloc0.offset;call write~$Pointer$(0bv32, 0bv32, ~head~0.base, ~head~0.offset, 4bv32);call write~intINTTYPE4(0bv32, ~head~0.base, ~bvadd32(4bv32, ~head~0.offset), 4bv32);~item~0.base, ~item~0.offset := ~head~0.base, ~head~0.offset;~status~0 := 0bv32; {3786#(and (= main_~item~0.base main_~head~0.base) (= main_~head~0.offset main_~item~0.offset) (= (bvadd (select |#valid| main_~item~0.base) (_ bv1 1)) (_ bv0 1)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:10,132 INFO L273 TraceCheckUtils]: 6: Hoare triple {3786#(and (= main_~item~0.base main_~head~0.base) (= main_~head~0.offset main_~item~0.offset) (= (bvadd (select |#valid| main_~item~0.base) (_ bv1 1)) (_ bv0 1)) (= (_ bv0 32) main_~head~0.offset))} assume true; {3786#(and (= main_~item~0.base main_~head~0.base) (= main_~head~0.offset main_~item~0.offset) (= (bvadd (select |#valid| main_~item~0.base) (_ bv1 1)) (_ bv0 1)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:10,136 INFO L273 TraceCheckUtils]: 7: Hoare triple {3786#(and (= main_~item~0.base main_~head~0.base) (= main_~head~0.offset main_~item~0.offset) (= (bvadd (select |#valid| main_~item~0.base) (_ bv1 1)) (_ bv0 1)) (= (_ bv0 32) main_~head~0.offset))} assume !!(0bv32 != #t~nondet1);havoc #t~nondet1;call #t~malloc2.base, #t~malloc2.offset := #Ultimate.alloc(8bv32);call write~$Pointer$(#t~malloc2.base, #t~malloc2.offset, ~item~0.base, ~item~0.offset, 4bv32);call #t~mem3.base, #t~mem3.offset := read~$Pointer$(~item~0.base, ~item~0.offset, 4bv32);~item~0.base, ~item~0.offset := #t~mem3.base, #t~mem3.offset;havoc #t~mem3.base, #t~mem3.offset;call write~$Pointer$(0bv32, 0bv32, ~item~0.base, ~item~0.offset, 4bv32); {3793#(and (= (_ bv0 32) (select (select |#memory_$Pointer$.base| main_~item~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (not (= main_~item~0.base main_~head~0.base)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~item~0.base) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) main_~item~0.offset) (= (select (select |#memory_$Pointer$.offset| main_~item~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (_ bv0 32)) (= (_ bv0 32) main_~item~0.offset) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:10,139 INFO L273 TraceCheckUtils]: 8: Hoare triple {3793#(and (= (_ bv0 32) (select (select |#memory_$Pointer$.base| main_~item~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (not (= main_~item~0.base main_~head~0.base)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~item~0.base) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) main_~item~0.offset) (= (select (select |#memory_$Pointer$.offset| main_~item~0.base) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (_ bv0 32)) (= (_ bv0 32) main_~item~0.offset) (= (_ bv0 32) main_~head~0.offset))} assume 0bv32 == ~status~0;call write~intINTTYPE4(1bv32, ~item~0.base, ~bvadd32(4bv32, ~item~0.offset), 4bv32);~status~0 := 1bv32; {3797#(and (= (bvadd (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv4294967295 32)) (_ bv0 32)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (_ bv0 32)) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:10,141 INFO L273 TraceCheckUtils]: 9: Hoare triple {3797#(and (= (bvadd (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv4294967295 32)) (_ bv0 32)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (_ bv0 32)) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} assume true; {3797#(and (= (bvadd (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv4294967295 32)) (_ bv0 32)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (_ bv0 32)) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:10,143 INFO L273 TraceCheckUtils]: 10: Hoare triple {3797#(and (= (bvadd (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv4294967295 32)) (_ bv0 32)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (_ bv0 32)) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} assume !!(~head~0.base != 0bv32 || ~head~0.offset != 0bv32); {3797#(and (= (bvadd (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv4294967295 32)) (_ bv0 32)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (_ bv0 32)) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:10,145 INFO L273 TraceCheckUtils]: 11: Hoare triple {3797#(and (= (bvadd (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv4294967295 32)) (_ bv0 32)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (_ bv0 32)) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} assume true; {3797#(and (= (bvadd (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv4294967295 32)) (_ bv0 32)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (_ bv0 32)) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:10,147 INFO L273 TraceCheckUtils]: 12: Hoare triple {3797#(and (= (bvadd (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv4294967295 32)) (_ bv0 32)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (_ bv0 32)) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} assume true; {3797#(and (= (bvadd (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv4294967295 32)) (_ bv0 32)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (_ bv0 32)) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:10,149 INFO L273 TraceCheckUtils]: 13: Hoare triple {3797#(and (= (bvadd (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv4294967295 32)) (_ bv0 32)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (_ bv0 32)) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} assume !!(~item~0.base != 0bv32 || ~item~0.offset != 0bv32); {3797#(and (= (bvadd (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv4294967295 32)) (_ bv0 32)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (_ bv0 32)) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:10,151 INFO L273 TraceCheckUtils]: 14: Hoare triple {3797#(and (= (bvadd (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv4294967295 32)) (_ bv0 32)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (_ bv0 32)) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} assume true; {3797#(and (= (bvadd (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv4294967295 32)) (_ bv0 32)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (_ bv0 32)) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:10,153 INFO L273 TraceCheckUtils]: 15: Hoare triple {3797#(and (= (bvadd (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv4294967295 32)) (_ bv0 32)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (_ bv0 32)) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} assume true; {3797#(and (= (bvadd (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv4294967295 32)) (_ bv0 32)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (_ bv0 32)) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:10,155 INFO L273 TraceCheckUtils]: 16: Hoare triple {3797#(and (= (bvadd (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv4294967295 32)) (_ bv0 32)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (_ bv0 32)) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} assume !(0bv32 != #t~nondet1);havoc #t~nondet1; {3797#(and (= (bvadd (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv4294967295 32)) (_ bv0 32)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (_ bv0 32)) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:10,157 INFO L273 TraceCheckUtils]: 17: Hoare triple {3797#(and (= (bvadd (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv4294967295 32)) (_ bv0 32)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (_ bv0 32)) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} assume true; {3797#(and (= (bvadd (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv4294967295 32)) (_ bv0 32)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (_ bv0 32)) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:10,159 INFO L273 TraceCheckUtils]: 18: Hoare triple {3797#(and (= (bvadd (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv4294967295 32)) (_ bv0 32)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (_ bv0 32)) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} assume !!(~head~0.base != 0bv32 || ~head~0.offset != 0bv32); {3797#(and (= (bvadd (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv4294967295 32)) (_ bv0 32)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (_ bv0 32)) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:10,161 INFO L273 TraceCheckUtils]: 19: Hoare triple {3797#(and (= (bvadd (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv4294967295 32)) (_ bv0 32)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (_ bv0 32)) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} assume true; {3797#(and (= (bvadd (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv4294967295 32)) (_ bv0 32)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (_ bv0 32)) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:10,163 INFO L273 TraceCheckUtils]: 20: Hoare triple {3797#(and (= (bvadd (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv4294967295 32)) (_ bv0 32)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (_ bv0 32)) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} assume 1bv32 == ~status~0; {3797#(and (= (bvadd (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv4294967295 32)) (_ bv0 32)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (_ bv0 32)) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:10,165 INFO L273 TraceCheckUtils]: 21: Hoare triple {3797#(and (= (bvadd (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv4294967295 32)) (_ bv0 32)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (_ bv0 32)) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} assume true; {3797#(and (= (bvadd (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv4294967295 32)) (_ bv0 32)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (_ bv0 32)) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:10,167 INFO L273 TraceCheckUtils]: 22: Hoare triple {3797#(and (= (bvadd (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv4294967295 32)) (_ bv0 32)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (_ bv0 32)) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} assume !!(~head~0.base != 0bv32 || ~head~0.offset != 0bv32); {3797#(and (= (bvadd (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv4294967295 32)) (_ bv0 32)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (_ bv0 32)) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:10,169 INFO L273 TraceCheckUtils]: 23: Hoare triple {3797#(and (= (bvadd (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv4294967295 32)) (_ bv0 32)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (_ bv0 32)) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} assume true; {3797#(and (= (bvadd (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv4294967295 32)) (_ bv0 32)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (_ bv0 32)) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:10,171 INFO L273 TraceCheckUtils]: 24: Hoare triple {3797#(and (= (bvadd (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv4294967295 32)) (_ bv0 32)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (_ bv0 32)) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} assume true;call #t~mem4.base, #t~mem4.offset := read~$Pointer$(~head~0.base, ~head~0.offset, 4bv32); {3797#(and (= (bvadd (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv4294967295 32)) (_ bv0 32)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (_ bv0 32)) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:10,173 INFO L273 TraceCheckUtils]: 25: Hoare triple {3797#(and (= (bvadd (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv4294967295 32)) (_ bv0 32)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (_ bv0 32)) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} assume !!(#t~mem4.base != 0bv32 || #t~mem4.offset != 0bv32);havoc #t~mem4.base, #t~mem4.offset; {3797#(and (= (bvadd (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv4294967295 32)) (_ bv0 32)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (_ bv0 32)) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:10,175 INFO L273 TraceCheckUtils]: 26: Hoare triple {3797#(and (= (bvadd (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv4294967295 32)) (_ bv0 32)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (_ bv0 32)) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} assume true; {3797#(and (= (bvadd (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv4294967295 32)) (_ bv0 32)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (_ bv0 32)) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:10,177 INFO L273 TraceCheckUtils]: 27: Hoare triple {3797#(and (= (bvadd (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv4294967295 32)) (_ bv0 32)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (_ bv0 32)) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} assume !(2bv32 == ~status~0); {3797#(and (= (bvadd (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv4294967295 32)) (_ bv0 32)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (_ bv0 32)) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:10,179 INFO L273 TraceCheckUtils]: 28: Hoare triple {3797#(and (= (bvadd (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv4294967295 32)) (_ bv0 32)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (_ bv0 32)) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} assume !(3bv32 == ~status~0); {3797#(and (= (bvadd (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv4294967295 32)) (_ bv0 32)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (_ bv0 32)) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:10,181 INFO L273 TraceCheckUtils]: 29: Hoare triple {3797#(and (= (bvadd (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv4294967295 32)) (_ bv0 32)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (_ bv0 32)) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset)) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} call #t~mem18.base, #t~mem18.offset := read~$Pointer$(~head~0.base, ~head~0.offset, 4bv32);~item~0.base, ~item~0.offset := #t~mem18.base, #t~mem18.offset;havoc #t~mem18.base, #t~mem18.offset; {3861#(and (= (bvadd (select (select |#memory_int| main_~item~0.base) (bvadd main_~item~0.offset (_ bv4 32))) (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) main_~item~0.offset))} is VALID [2018-11-18 21:52:10,182 INFO L273 TraceCheckUtils]: 30: Hoare triple {3861#(and (= (bvadd (select (select |#memory_int| main_~item~0.base) (bvadd main_~item~0.offset (_ bv4 32))) (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) main_~item~0.offset))} assume true; {3861#(and (= (bvadd (select (select |#memory_int| main_~item~0.base) (bvadd main_~item~0.offset (_ bv4 32))) (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) main_~item~0.offset))} is VALID [2018-11-18 21:52:10,183 INFO L273 TraceCheckUtils]: 31: Hoare triple {3861#(and (= (bvadd (select (select |#memory_int| main_~item~0.base) (bvadd main_~item~0.offset (_ bv4 32))) (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) main_~item~0.offset))} assume !!((~item~0.base != 0bv32 || ~item~0.offset != 0bv32) && 0bv32 != #t~nondet19);havoc #t~nondet19; {3861#(and (= (bvadd (select (select |#memory_int| main_~item~0.base) (bvadd main_~item~0.offset (_ bv4 32))) (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) main_~item~0.offset))} is VALID [2018-11-18 21:52:10,185 INFO L273 TraceCheckUtils]: 32: Hoare triple {3861#(and (= (bvadd (select (select |#memory_int| main_~item~0.base) (bvadd main_~item~0.offset (_ bv4 32))) (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) main_~item~0.offset))} assume true;#t~short21 := 0bv32 == ~status~0; {3861#(and (= (bvadd (select (select |#memory_int| main_~item~0.base) (bvadd main_~item~0.offset (_ bv4 32))) (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) main_~item~0.offset))} is VALID [2018-11-18 21:52:10,186 INFO L273 TraceCheckUtils]: 33: Hoare triple {3861#(and (= (bvadd (select (select |#memory_int| main_~item~0.base) (bvadd main_~item~0.offset (_ bv4 32))) (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) main_~item~0.offset))} assume !#t~short21;call #t~mem20 := read~intINTTYPE4(~item~0.base, ~bvadd32(4bv32, ~item~0.offset), 4bv32);#t~short21 := ~bvsgt32(#t~mem20, 0bv32); {3874#|main_#t~short21|} is VALID [2018-11-18 21:52:10,186 INFO L273 TraceCheckUtils]: 34: Hoare triple {3874#|main_#t~short21|} assume !#t~short21;havoc #t~short21;havoc #t~mem20; {3767#false} is VALID [2018-11-18 21:52:10,187 INFO L273 TraceCheckUtils]: 35: Hoare triple {3767#false} assume !false; {3767#false} is VALID [2018-11-18 21:52:10,197 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 21:52:10,197 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 21:52:12,436 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 11 [2018-11-18 21:52:12,448 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-18 21:52:12,453 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:12,456 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 21:52:12,468 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-18 21:52:12,468 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:27, output treesize:15 [2018-11-18 21:52:12,478 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-11-18 21:52:12,708 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 31 [2018-11-18 21:52:12,787 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 9 treesize of output 8 [2018-11-18 21:52:12,788 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:12,834 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2018-11-18 21:52:12,848 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 15 treesize of output 9 [2018-11-18 21:52:12,851 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:12,896 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 7 [2018-11-18 21:52:12,914 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:12,934 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2018-11-18 21:52:12,953 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:12,963 INFO L267 ElimStorePlain]: Start of recursive call 4: 3 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 21:52:12,986 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-11-18 21:52:13,091 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 31 [2018-11-18 21:52:13,145 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 9 treesize of output 8 [2018-11-18 21:52:13,147 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:13,219 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2018-11-18 21:52:13,231 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 15 treesize of output 9 [2018-11-18 21:52:13,233 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:13,259 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2018-11-18 21:52:13,262 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:13,287 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 7 [2018-11-18 21:52:13,290 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:13,301 INFO L267 ElimStorePlain]: Start of recursive call 10: 3 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 21:52:13,303 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 15 [2018-11-18 21:52:13,308 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 6 treesize of output 1 [2018-11-18 21:52:13,308 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:13,316 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 21:52:13,352 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 7 xjuncts. [2018-11-18 21:52:13,477 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 8 dim-0 vars, and 9 xjuncts. [2018-11-18 21:52:13,478 INFO L202 ElimStorePlain]: Needed 15 recursive calls to eliminate 4 variables, input treesize:77, output treesize:119 [2018-11-18 21:52:13,511 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-11-18 21:52:13,740 WARN L180 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 45 [2018-11-18 21:52:13,813 INFO L273 TraceCheckUtils]: 35: Hoare triple {3767#false} assume !false; {3767#false} is VALID [2018-11-18 21:52:13,814 INFO L273 TraceCheckUtils]: 34: Hoare triple {3874#|main_#t~short21|} assume !#t~short21;havoc #t~short21;havoc #t~mem20; {3767#false} is VALID [2018-11-18 21:52:13,815 INFO L273 TraceCheckUtils]: 33: Hoare triple {3887#(bvsgt (select (select |#memory_int| main_~item~0.base) (bvadd main_~item~0.offset (_ bv4 32))) (_ bv0 32))} assume !#t~short21;call #t~mem20 := read~intINTTYPE4(~item~0.base, ~bvadd32(4bv32, ~item~0.offset), 4bv32);#t~short21 := ~bvsgt32(#t~mem20, 0bv32); {3874#|main_#t~short21|} is VALID [2018-11-18 21:52:13,815 INFO L273 TraceCheckUtils]: 32: Hoare triple {3887#(bvsgt (select (select |#memory_int| main_~item~0.base) (bvadd main_~item~0.offset (_ bv4 32))) (_ bv0 32))} assume true;#t~short21 := 0bv32 == ~status~0; {3887#(bvsgt (select (select |#memory_int| main_~item~0.base) (bvadd main_~item~0.offset (_ bv4 32))) (_ bv0 32))} is VALID [2018-11-18 21:52:13,816 INFO L273 TraceCheckUtils]: 31: Hoare triple {3887#(bvsgt (select (select |#memory_int| main_~item~0.base) (bvadd main_~item~0.offset (_ bv4 32))) (_ bv0 32))} assume !!((~item~0.base != 0bv32 || ~item~0.offset != 0bv32) && 0bv32 != #t~nondet19);havoc #t~nondet19; {3887#(bvsgt (select (select |#memory_int| main_~item~0.base) (bvadd main_~item~0.offset (_ bv4 32))) (_ bv0 32))} is VALID [2018-11-18 21:52:13,816 INFO L273 TraceCheckUtils]: 30: Hoare triple {3887#(bvsgt (select (select |#memory_int| main_~item~0.base) (bvadd main_~item~0.offset (_ bv4 32))) (_ bv0 32))} assume true; {3887#(bvsgt (select (select |#memory_int| main_~item~0.base) (bvadd main_~item~0.offset (_ bv4 32))) (_ bv0 32))} is VALID [2018-11-18 21:52:13,817 INFO L273 TraceCheckUtils]: 29: Hoare triple {3900#(bvsgt (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv0 32))} call #t~mem18.base, #t~mem18.offset := read~$Pointer$(~head~0.base, ~head~0.offset, 4bv32);~item~0.base, ~item~0.offset := #t~mem18.base, #t~mem18.offset;havoc #t~mem18.base, #t~mem18.offset; {3887#(bvsgt (select (select |#memory_int| main_~item~0.base) (bvadd main_~item~0.offset (_ bv4 32))) (_ bv0 32))} is VALID [2018-11-18 21:52:13,818 INFO L273 TraceCheckUtils]: 28: Hoare triple {3900#(bvsgt (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv0 32))} assume !(3bv32 == ~status~0); {3900#(bvsgt (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv0 32))} is VALID [2018-11-18 21:52:13,819 INFO L273 TraceCheckUtils]: 27: Hoare triple {3900#(bvsgt (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv0 32))} assume !(2bv32 == ~status~0); {3900#(bvsgt (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv0 32))} is VALID [2018-11-18 21:52:13,819 INFO L273 TraceCheckUtils]: 26: Hoare triple {3900#(bvsgt (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv0 32))} assume true; {3900#(bvsgt (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv0 32))} is VALID [2018-11-18 21:52:13,827 INFO L273 TraceCheckUtils]: 25: Hoare triple {3900#(bvsgt (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv0 32))} assume !!(#t~mem4.base != 0bv32 || #t~mem4.offset != 0bv32);havoc #t~mem4.base, #t~mem4.offset; {3900#(bvsgt (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv0 32))} is VALID [2018-11-18 21:52:13,828 INFO L273 TraceCheckUtils]: 24: Hoare triple {3900#(bvsgt (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv0 32))} assume true;call #t~mem4.base, #t~mem4.offset := read~$Pointer$(~head~0.base, ~head~0.offset, 4bv32); {3900#(bvsgt (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv0 32))} is VALID [2018-11-18 21:52:13,828 INFO L273 TraceCheckUtils]: 23: Hoare triple {3900#(bvsgt (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv0 32))} assume true; {3900#(bvsgt (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv0 32))} is VALID [2018-11-18 21:52:13,829 INFO L273 TraceCheckUtils]: 22: Hoare triple {3900#(bvsgt (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv0 32))} assume !!(~head~0.base != 0bv32 || ~head~0.offset != 0bv32); {3900#(bvsgt (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv0 32))} is VALID [2018-11-18 21:52:13,830 INFO L273 TraceCheckUtils]: 21: Hoare triple {3900#(bvsgt (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv0 32))} assume true; {3900#(bvsgt (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv0 32))} is VALID [2018-11-18 21:52:13,830 INFO L273 TraceCheckUtils]: 20: Hoare triple {3900#(bvsgt (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv0 32))} assume 1bv32 == ~status~0; {3900#(bvsgt (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv0 32))} is VALID [2018-11-18 21:52:13,830 INFO L273 TraceCheckUtils]: 19: Hoare triple {3900#(bvsgt (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv0 32))} assume true; {3900#(bvsgt (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv0 32))} is VALID [2018-11-18 21:52:13,831 INFO L273 TraceCheckUtils]: 18: Hoare triple {3900#(bvsgt (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv0 32))} assume !!(~head~0.base != 0bv32 || ~head~0.offset != 0bv32); {3900#(bvsgt (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv0 32))} is VALID [2018-11-18 21:52:13,832 INFO L273 TraceCheckUtils]: 17: Hoare triple {3900#(bvsgt (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv0 32))} assume true; {3900#(bvsgt (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv0 32))} is VALID [2018-11-18 21:52:13,832 INFO L273 TraceCheckUtils]: 16: Hoare triple {3900#(bvsgt (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv0 32))} assume !(0bv32 != #t~nondet1);havoc #t~nondet1; {3900#(bvsgt (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv0 32))} is VALID [2018-11-18 21:52:13,833 INFO L273 TraceCheckUtils]: 15: Hoare triple {3900#(bvsgt (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv0 32))} assume true; {3900#(bvsgt (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv0 32))} is VALID [2018-11-18 21:52:13,833 INFO L273 TraceCheckUtils]: 14: Hoare triple {3900#(bvsgt (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv0 32))} assume true; {3900#(bvsgt (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv0 32))} is VALID [2018-11-18 21:52:13,834 INFO L273 TraceCheckUtils]: 13: Hoare triple {3900#(bvsgt (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv0 32))} assume !!(~item~0.base != 0bv32 || ~item~0.offset != 0bv32); {3900#(bvsgt (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv0 32))} is VALID [2018-11-18 21:52:13,835 INFO L273 TraceCheckUtils]: 12: Hoare triple {3900#(bvsgt (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv0 32))} assume true; {3900#(bvsgt (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv0 32))} is VALID [2018-11-18 21:52:13,835 INFO L273 TraceCheckUtils]: 11: Hoare triple {3900#(bvsgt (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv0 32))} assume true; {3900#(bvsgt (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv0 32))} is VALID [2018-11-18 21:52:13,836 INFO L273 TraceCheckUtils]: 10: Hoare triple {3900#(bvsgt (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv0 32))} assume !!(~head~0.base != 0bv32 || ~head~0.offset != 0bv32); {3900#(bvsgt (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv0 32))} is VALID [2018-11-18 21:52:13,836 INFO L273 TraceCheckUtils]: 9: Hoare triple {3900#(bvsgt (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv0 32))} assume true; {3900#(bvsgt (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv0 32))} is VALID [2018-11-18 21:52:13,839 INFO L273 TraceCheckUtils]: 8: Hoare triple {3964#(and (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~item~0.base) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) main_~item~0.offset))} assume 0bv32 == ~status~0;call write~intINTTYPE4(1bv32, ~item~0.base, ~bvadd32(4bv32, ~item~0.offset), 4bv32);~status~0 := 1bv32; {3900#(bvsgt (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) (bvadd (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) (_ bv4 32))) (_ bv0 32))} is VALID [2018-11-18 21:52:13,846 INFO L273 TraceCheckUtils]: 7: Hoare triple {3968#(and (or (not (= (_ bv0 32) main_~head~0.offset)) (not (= (select |#valid| main_~head~0.base) (_ bv0 1))) (= (_ bv0 32) main_~head~0.base)) (or (forall ((v_prenex_9 (_ BitVec 32))) (not (= (select |#valid| v_prenex_9) (_ bv0 1)))) (= main_~head~0.offset main_~item~0.offset) (= (_ bv0 32) main_~head~0.offset)) (or (= main_~item~0.base main_~head~0.base) (forall ((v_prenex_11 (_ BitVec 32))) (or (= v_prenex_11 main_~head~0.base) (not (= (select |#valid| v_prenex_11) (_ bv0 1)))))) (or (= main_~head~0.offset main_~item~0.offset) (forall ((v_prenex_10 (_ BitVec 32))) (or (= main_~head~0.base v_prenex_10) (not (= (select |#valid| v_prenex_10) (_ bv0 1)))))) (or (forall ((v_prenex_7 (_ BitVec 32))) (not (= (select |#valid| v_prenex_7) (_ bv0 1)))) (= main_~item~0.base main_~head~0.base) (= (_ bv0 32) main_~head~0.offset)))} assume !!(0bv32 != #t~nondet1);havoc #t~nondet1;call #t~malloc2.base, #t~malloc2.offset := #Ultimate.alloc(8bv32);call write~$Pointer$(#t~malloc2.base, #t~malloc2.offset, ~item~0.base, ~item~0.offset, 4bv32);call #t~mem3.base, #t~mem3.offset := read~$Pointer$(~item~0.base, ~item~0.offset, 4bv32);~item~0.base, ~item~0.offset := #t~mem3.base, #t~mem3.offset;havoc #t~mem3.base, #t~mem3.offset;call write~$Pointer$(0bv32, 0bv32, ~item~0.base, ~item~0.offset, 4bv32); {3964#(and (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~item~0.base) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) main_~head~0.offset) main_~item~0.offset))} is VALID [2018-11-18 21:52:13,848 INFO L273 TraceCheckUtils]: 6: Hoare triple {3968#(and (or (not (= (_ bv0 32) main_~head~0.offset)) (not (= (select |#valid| main_~head~0.base) (_ bv0 1))) (= (_ bv0 32) main_~head~0.base)) (or (forall ((v_prenex_9 (_ BitVec 32))) (not (= (select |#valid| v_prenex_9) (_ bv0 1)))) (= main_~head~0.offset main_~item~0.offset) (= (_ bv0 32) main_~head~0.offset)) (or (= main_~item~0.base main_~head~0.base) (forall ((v_prenex_11 (_ BitVec 32))) (or (= v_prenex_11 main_~head~0.base) (not (= (select |#valid| v_prenex_11) (_ bv0 1)))))) (or (= main_~head~0.offset main_~item~0.offset) (forall ((v_prenex_10 (_ BitVec 32))) (or (= main_~head~0.base v_prenex_10) (not (= (select |#valid| v_prenex_10) (_ bv0 1)))))) (or (forall ((v_prenex_7 (_ BitVec 32))) (not (= (select |#valid| v_prenex_7) (_ bv0 1)))) (= main_~item~0.base main_~head~0.base) (= (_ bv0 32) main_~head~0.offset)))} assume true; {3968#(and (or (not (= (_ bv0 32) main_~head~0.offset)) (not (= (select |#valid| main_~head~0.base) (_ bv0 1))) (= (_ bv0 32) main_~head~0.base)) (or (forall ((v_prenex_9 (_ BitVec 32))) (not (= (select |#valid| v_prenex_9) (_ bv0 1)))) (= main_~head~0.offset main_~item~0.offset) (= (_ bv0 32) main_~head~0.offset)) (or (= main_~item~0.base main_~head~0.base) (forall ((v_prenex_11 (_ BitVec 32))) (or (= v_prenex_11 main_~head~0.base) (not (= (select |#valid| v_prenex_11) (_ bv0 1)))))) (or (= main_~head~0.offset main_~item~0.offset) (forall ((v_prenex_10 (_ BitVec 32))) (or (= main_~head~0.base v_prenex_10) (not (= (select |#valid| v_prenex_10) (_ bv0 1)))))) (or (forall ((v_prenex_7 (_ BitVec 32))) (not (= (select |#valid| v_prenex_7) (_ bv0 1)))) (= main_~item~0.base main_~head~0.base) (= (_ bv0 32) main_~head~0.offset)))} is VALID [2018-11-18 21:52:13,849 INFO L273 TraceCheckUtils]: 5: Hoare triple {3766#true} call #t~malloc0.base, #t~malloc0.offset := #Ultimate.alloc(8bv32);~head~0.base, ~head~0.offset := #t~malloc0.base, #t~malloc0.offset;call write~$Pointer$(0bv32, 0bv32, ~head~0.base, ~head~0.offset, 4bv32);call write~intINTTYPE4(0bv32, ~head~0.base, ~bvadd32(4bv32, ~head~0.offset), 4bv32);~item~0.base, ~item~0.offset := ~head~0.base, ~head~0.offset;~status~0 := 0bv32; {3968#(and (or (not (= (_ bv0 32) main_~head~0.offset)) (not (= (select |#valid| main_~head~0.base) (_ bv0 1))) (= (_ bv0 32) main_~head~0.base)) (or (forall ((v_prenex_9 (_ BitVec 32))) (not (= (select |#valid| v_prenex_9) (_ bv0 1)))) (= main_~head~0.offset main_~item~0.offset) (= (_ bv0 32) main_~head~0.offset)) (or (= main_~item~0.base main_~head~0.base) (forall ((v_prenex_11 (_ BitVec 32))) (or (= v_prenex_11 main_~head~0.base) (not (= (select |#valid| v_prenex_11) (_ bv0 1)))))) (or (= main_~head~0.offset main_~item~0.offset) (forall ((v_prenex_10 (_ BitVec 32))) (or (= main_~head~0.base v_prenex_10) (not (= (select |#valid| v_prenex_10) (_ bv0 1)))))) (or (forall ((v_prenex_7 (_ BitVec 32))) (not (= (select |#valid| v_prenex_7) (_ bv0 1)))) (= main_~item~0.base main_~head~0.base) (= (_ bv0 32) main_~head~0.offset)))} is VALID [2018-11-18 21:52:13,850 INFO L256 TraceCheckUtils]: 4: Hoare triple {3766#true} call #t~ret24 := main(); {3766#true} is VALID [2018-11-18 21:52:13,850 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {3766#true} {3766#true} #359#return; {3766#true} is VALID [2018-11-18 21:52:13,850 INFO L273 TraceCheckUtils]: 2: Hoare triple {3766#true} assume true; {3766#true} is VALID [2018-11-18 21:52:13,850 INFO L273 TraceCheckUtils]: 1: Hoare triple {3766#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1]; {3766#true} is VALID [2018-11-18 21:52:13,850 INFO L256 TraceCheckUtils]: 0: Hoare triple {3766#true} call ULTIMATE.init(); {3766#true} is VALID [2018-11-18 21:52:13,857 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 21:52:13,863 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 21:52:13,864 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2018-11-18 21:52:13,864 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 36 [2018-11-18 21:52:13,866 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 21:52:13,866 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states. [2018-11-18 21:52:14,047 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 65 edges. 65 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:52:14,047 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-18 21:52:14,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-18 21:52:14,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2018-11-18 21:52:14,048 INFO L87 Difference]: Start difference. First operand 114 states and 124 transitions. Second operand 11 states. [2018-11-18 21:52:18,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:52:18,582 INFO L93 Difference]: Finished difference Result 209 states and 226 transitions. [2018-11-18 21:52:18,582 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-18 21:52:18,582 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 36 [2018-11-18 21:52:18,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 21:52:18,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-11-18 21:52:18,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 206 transitions. [2018-11-18 21:52:18,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-11-18 21:52:18,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 206 transitions. [2018-11-18 21:52:18,588 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12 states and 206 transitions. [2018-11-18 21:52:18,899 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 206 edges. 206 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:52:18,904 INFO L225 Difference]: With dead ends: 209 [2018-11-18 21:52:18,904 INFO L226 Difference]: Without dead ends: 207 [2018-11-18 21:52:18,905 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2018-11-18 21:52:18,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2018-11-18 21:52:19,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 122. [2018-11-18 21:52:19,098 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 21:52:19,098 INFO L82 GeneralOperation]: Start isEquivalent. First operand 207 states. Second operand 122 states. [2018-11-18 21:52:19,098 INFO L74 IsIncluded]: Start isIncluded. First operand 207 states. Second operand 122 states. [2018-11-18 21:52:19,098 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 122 states. [2018-11-18 21:52:19,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:52:19,104 INFO L93 Difference]: Finished difference Result 207 states and 224 transitions. [2018-11-18 21:52:19,104 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 224 transitions. [2018-11-18 21:52:19,105 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:52:19,105 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:52:19,105 INFO L74 IsIncluded]: Start isIncluded. First operand 122 states. Second operand 207 states. [2018-11-18 21:52:19,105 INFO L87 Difference]: Start difference. First operand 122 states. Second operand 207 states. [2018-11-18 21:52:19,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:52:19,112 INFO L93 Difference]: Finished difference Result 207 states and 224 transitions. [2018-11-18 21:52:19,112 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 224 transitions. [2018-11-18 21:52:19,113 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:52:19,113 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:52:19,113 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 21:52:19,113 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 21:52:19,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2018-11-18 21:52:19,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 133 transitions. [2018-11-18 21:52:19,117 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 133 transitions. Word has length 36 [2018-11-18 21:52:19,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 21:52:19,117 INFO L480 AbstractCegarLoop]: Abstraction has 122 states and 133 transitions. [2018-11-18 21:52:19,117 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-18 21:52:19,117 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 133 transitions. [2018-11-18 21:52:19,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-18 21:52:19,118 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 21:52:19,118 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 21:52:19,119 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 21:52:19,119 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 21:52:19,119 INFO L82 PathProgramCache]: Analyzing trace with hash -918326656, now seen corresponding path program 1 times [2018-11-18 21:52:19,119 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 21:52:19,120 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 10 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 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 21:52:19,153 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 21:52:19,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:52:19,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:52:19,233 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 21:52:19,424 INFO L256 TraceCheckUtils]: 0: Hoare triple {4785#true} call ULTIMATE.init(); {4785#true} is VALID [2018-11-18 21:52:19,425 INFO L273 TraceCheckUtils]: 1: Hoare triple {4785#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1]; {4785#true} is VALID [2018-11-18 21:52:19,425 INFO L273 TraceCheckUtils]: 2: Hoare triple {4785#true} assume true; {4785#true} is VALID [2018-11-18 21:52:19,425 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {4785#true} {4785#true} #359#return; {4785#true} is VALID [2018-11-18 21:52:19,426 INFO L256 TraceCheckUtils]: 4: Hoare triple {4785#true} call #t~ret24 := main(); {4785#true} is VALID [2018-11-18 21:52:19,426 INFO L273 TraceCheckUtils]: 5: Hoare triple {4785#true} call #t~malloc0.base, #t~malloc0.offset := #Ultimate.alloc(8bv32);~head~0.base, ~head~0.offset := #t~malloc0.base, #t~malloc0.offset;call write~$Pointer$(0bv32, 0bv32, ~head~0.base, ~head~0.offset, 4bv32);call write~intINTTYPE4(0bv32, ~head~0.base, ~bvadd32(4bv32, ~head~0.offset), 4bv32);~item~0.base, ~item~0.offset := ~head~0.base, ~head~0.offset;~status~0 := 0bv32; {4785#true} is VALID [2018-11-18 21:52:19,426 INFO L273 TraceCheckUtils]: 6: Hoare triple {4785#true} assume true; {4785#true} is VALID [2018-11-18 21:52:19,426 INFO L273 TraceCheckUtils]: 7: Hoare triple {4785#true} assume !!(0bv32 != #t~nondet1);havoc #t~nondet1;call #t~malloc2.base, #t~malloc2.offset := #Ultimate.alloc(8bv32);call write~$Pointer$(#t~malloc2.base, #t~malloc2.offset, ~item~0.base, ~item~0.offset, 4bv32);call #t~mem3.base, #t~mem3.offset := read~$Pointer$(~item~0.base, ~item~0.offset, 4bv32);~item~0.base, ~item~0.offset := #t~mem3.base, #t~mem3.offset;havoc #t~mem3.base, #t~mem3.offset;call write~$Pointer$(0bv32, 0bv32, ~item~0.base, ~item~0.offset, 4bv32); {4785#true} is VALID [2018-11-18 21:52:19,427 INFO L273 TraceCheckUtils]: 8: Hoare triple {4785#true} assume 0bv32 == ~status~0;call write~intINTTYPE4(1bv32, ~item~0.base, ~bvadd32(4bv32, ~item~0.offset), 4bv32);~status~0 := 1bv32; {4785#true} is VALID [2018-11-18 21:52:19,427 INFO L273 TraceCheckUtils]: 9: Hoare triple {4785#true} assume true; {4785#true} is VALID [2018-11-18 21:52:19,427 INFO L273 TraceCheckUtils]: 10: Hoare triple {4785#true} assume !!(~head~0.base != 0bv32 || ~head~0.offset != 0bv32); {4785#true} is VALID [2018-11-18 21:52:19,427 INFO L273 TraceCheckUtils]: 11: Hoare triple {4785#true} assume true; {4785#true} is VALID [2018-11-18 21:52:19,427 INFO L273 TraceCheckUtils]: 12: Hoare triple {4785#true} assume true; {4785#true} is VALID [2018-11-18 21:52:19,428 INFO L273 TraceCheckUtils]: 13: Hoare triple {4785#true} assume !!(~item~0.base != 0bv32 || ~item~0.offset != 0bv32); {4785#true} is VALID [2018-11-18 21:52:19,428 INFO L273 TraceCheckUtils]: 14: Hoare triple {4785#true} assume true; {4785#true} is VALID [2018-11-18 21:52:19,428 INFO L273 TraceCheckUtils]: 15: Hoare triple {4785#true} assume true; {4785#true} is VALID [2018-11-18 21:52:19,428 INFO L273 TraceCheckUtils]: 16: Hoare triple {4785#true} assume !!(0bv32 != #t~nondet1);havoc #t~nondet1;call #t~malloc2.base, #t~malloc2.offset := #Ultimate.alloc(8bv32);call write~$Pointer$(#t~malloc2.base, #t~malloc2.offset, ~item~0.base, ~item~0.offset, 4bv32);call #t~mem3.base, #t~mem3.offset := read~$Pointer$(~item~0.base, ~item~0.offset, 4bv32);~item~0.base, ~item~0.offset := #t~mem3.base, #t~mem3.offset;havoc #t~mem3.base, #t~mem3.offset;call write~$Pointer$(0bv32, 0bv32, ~item~0.base, ~item~0.offset, 4bv32); {4785#true} is VALID [2018-11-18 21:52:19,428 INFO L273 TraceCheckUtils]: 17: Hoare triple {4785#true} assume !(0bv32 == ~status~0); {4785#true} is VALID [2018-11-18 21:52:19,429 INFO L273 TraceCheckUtils]: 18: Hoare triple {4785#true} assume 1bv32 == ~status~0;call write~intINTTYPE4(2bv32, ~item~0.base, ~bvadd32(4bv32, ~item~0.offset), 4bv32);~status~0 := 2bv32; {4844#(= (bvadd main_~status~0 (_ bv4294967294 32)) (_ bv0 32))} is VALID [2018-11-18 21:52:19,429 INFO L273 TraceCheckUtils]: 19: Hoare triple {4844#(= (bvadd main_~status~0 (_ bv4294967294 32)) (_ bv0 32))} assume true; {4844#(= (bvadd main_~status~0 (_ bv4294967294 32)) (_ bv0 32))} is VALID [2018-11-18 21:52:19,435 INFO L273 TraceCheckUtils]: 20: Hoare triple {4844#(= (bvadd main_~status~0 (_ bv4294967294 32)) (_ bv0 32))} assume !!(~head~0.base != 0bv32 || ~head~0.offset != 0bv32); {4844#(= (bvadd main_~status~0 (_ bv4294967294 32)) (_ bv0 32))} is VALID [2018-11-18 21:52:19,435 INFO L273 TraceCheckUtils]: 21: Hoare triple {4844#(= (bvadd main_~status~0 (_ bv4294967294 32)) (_ bv0 32))} assume true; {4844#(= (bvadd main_~status~0 (_ bv4294967294 32)) (_ bv0 32))} is VALID [2018-11-18 21:52:19,436 INFO L273 TraceCheckUtils]: 22: Hoare triple {4844#(= (bvadd main_~status~0 (_ bv4294967294 32)) (_ bv0 32))} assume true; {4844#(= (bvadd main_~status~0 (_ bv4294967294 32)) (_ bv0 32))} is VALID [2018-11-18 21:52:19,436 INFO L273 TraceCheckUtils]: 23: Hoare triple {4844#(= (bvadd main_~status~0 (_ bv4294967294 32)) (_ bv0 32))} assume !!(~item~0.base != 0bv32 || ~item~0.offset != 0bv32); {4844#(= (bvadd main_~status~0 (_ bv4294967294 32)) (_ bv0 32))} is VALID [2018-11-18 21:52:19,437 INFO L273 TraceCheckUtils]: 24: Hoare triple {4844#(= (bvadd main_~status~0 (_ bv4294967294 32)) (_ bv0 32))} assume true; {4844#(= (bvadd main_~status~0 (_ bv4294967294 32)) (_ bv0 32))} is VALID [2018-11-18 21:52:19,440 INFO L273 TraceCheckUtils]: 25: Hoare triple {4844#(= (bvadd main_~status~0 (_ bv4294967294 32)) (_ bv0 32))} assume true; {4844#(= (bvadd main_~status~0 (_ bv4294967294 32)) (_ bv0 32))} is VALID [2018-11-18 21:52:19,443 INFO L273 TraceCheckUtils]: 26: Hoare triple {4844#(= (bvadd main_~status~0 (_ bv4294967294 32)) (_ bv0 32))} assume !(0bv32 != #t~nondet1);havoc #t~nondet1; {4844#(= (bvadd main_~status~0 (_ bv4294967294 32)) (_ bv0 32))} is VALID [2018-11-18 21:52:19,445 INFO L273 TraceCheckUtils]: 27: Hoare triple {4844#(= (bvadd main_~status~0 (_ bv4294967294 32)) (_ bv0 32))} assume true; {4844#(= (bvadd main_~status~0 (_ bv4294967294 32)) (_ bv0 32))} is VALID [2018-11-18 21:52:19,445 INFO L273 TraceCheckUtils]: 28: Hoare triple {4844#(= (bvadd main_~status~0 (_ bv4294967294 32)) (_ bv0 32))} assume !!(~head~0.base != 0bv32 || ~head~0.offset != 0bv32); {4844#(= (bvadd main_~status~0 (_ bv4294967294 32)) (_ bv0 32))} is VALID [2018-11-18 21:52:19,447 INFO L273 TraceCheckUtils]: 29: Hoare triple {4844#(= (bvadd main_~status~0 (_ bv4294967294 32)) (_ bv0 32))} assume true; {4844#(= (bvadd main_~status~0 (_ bv4294967294 32)) (_ bv0 32))} is VALID [2018-11-18 21:52:19,447 INFO L273 TraceCheckUtils]: 30: Hoare triple {4844#(= (bvadd main_~status~0 (_ bv4294967294 32)) (_ bv0 32))} assume 1bv32 == ~status~0; {4786#false} is VALID [2018-11-18 21:52:19,448 INFO L273 TraceCheckUtils]: 31: Hoare triple {4786#false} assume true; {4786#false} is VALID [2018-11-18 21:52:19,448 INFO L273 TraceCheckUtils]: 32: Hoare triple {4786#false} assume !!(~head~0.base != 0bv32 || ~head~0.offset != 0bv32); {4786#false} is VALID [2018-11-18 21:52:19,448 INFO L273 TraceCheckUtils]: 33: Hoare triple {4786#false} assume true; {4786#false} is VALID [2018-11-18 21:52:19,448 INFO L273 TraceCheckUtils]: 34: Hoare triple {4786#false} assume true;call #t~mem4.base, #t~mem4.offset := read~$Pointer$(~head~0.base, ~head~0.offset, 4bv32); {4786#false} is VALID [2018-11-18 21:52:19,448 INFO L273 TraceCheckUtils]: 35: Hoare triple {4786#false} assume !(#t~mem4.base != 0bv32 || #t~mem4.offset != 0bv32);havoc #t~mem4.base, #t~mem4.offset; {4786#false} is VALID [2018-11-18 21:52:19,448 INFO L273 TraceCheckUtils]: 36: Hoare triple {4786#false} assume !false; {4786#false} is VALID [2018-11-18 21:52:19,449 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 21:52:19,450 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 21:52:19,452 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 21:52:19,453 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 21:52:19,453 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2018-11-18 21:52:19,453 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 21:52:19,453 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2018-11-18 21:52:19,488 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 35 edges. 35 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:52:19,488 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 21:52:19,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 21:52:19,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 21:52:19,489 INFO L87 Difference]: Start difference. First operand 122 states and 133 transitions. Second operand 3 states. [2018-11-18 21:52:19,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:52:19,999 INFO L93 Difference]: Finished difference Result 238 states and 266 transitions. [2018-11-18 21:52:20,000 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 21:52:20,000 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2018-11-18 21:52:20,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 21:52:20,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 21:52:20,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 199 transitions. [2018-11-18 21:52:20,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 21:52:20,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 199 transitions. [2018-11-18 21:52:20,006 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 199 transitions. [2018-11-18 21:52:20,207 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 199 edges. 199 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:52:20,210 INFO L225 Difference]: With dead ends: 238 [2018-11-18 21:52:20,210 INFO L226 Difference]: Without dead ends: 150 [2018-11-18 21:52:20,211 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 21:52:20,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2018-11-18 21:52:20,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 138. [2018-11-18 21:52:20,304 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 21:52:20,304 INFO L82 GeneralOperation]: Start isEquivalent. First operand 150 states. Second operand 138 states. [2018-11-18 21:52:20,305 INFO L74 IsIncluded]: Start isIncluded. First operand 150 states. Second operand 138 states. [2018-11-18 21:52:20,305 INFO L87 Difference]: Start difference. First operand 150 states. Second operand 138 states. [2018-11-18 21:52:20,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:52:20,309 INFO L93 Difference]: Finished difference Result 150 states and 163 transitions. [2018-11-18 21:52:20,309 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 163 transitions. [2018-11-18 21:52:20,309 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:52:20,310 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:52:20,310 INFO L74 IsIncluded]: Start isIncluded. First operand 138 states. Second operand 150 states. [2018-11-18 21:52:20,310 INFO L87 Difference]: Start difference. First operand 138 states. Second operand 150 states. [2018-11-18 21:52:20,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:52:20,313 INFO L93 Difference]: Finished difference Result 150 states and 163 transitions. [2018-11-18 21:52:20,313 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 163 transitions. [2018-11-18 21:52:20,313 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:52:20,314 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:52:20,314 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 21:52:20,314 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 21:52:20,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2018-11-18 21:52:20,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 150 transitions. [2018-11-18 21:52:20,317 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 150 transitions. Word has length 37 [2018-11-18 21:52:20,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 21:52:20,317 INFO L480 AbstractCegarLoop]: Abstraction has 138 states and 150 transitions. [2018-11-18 21:52:20,317 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 21:52:20,317 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 150 transitions. [2018-11-18 21:52:20,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-11-18 21:52:20,318 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 21:52:20,318 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 21:52:20,319 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 21:52:20,319 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 21:52:20,319 INFO L82 PathProgramCache]: Analyzing trace with hash -1102714049, now seen corresponding path program 1 times [2018-11-18 21:52:20,319 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 21:52:20,319 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 11 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 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 21:52:20,337 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 21:52:20,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:52:20,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:52:20,435 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 21:52:20,613 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 6 treesize of output 5 [2018-11-18 21:52:20,615 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:20,628 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 21:52:20,629 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:15 [2018-11-18 21:52:20,632 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-11-18 21:52:20,684 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 21:52:20,687 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 21:52:20,688 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-18 21:52:20,689 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:20,749 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2018-11-18 21:52:20,757 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 21:52:20,759 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:20,793 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 20 [2018-11-18 21:52:20,798 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 21:52:20,799 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:20,811 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 21:52:20,821 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 21:52:20,845 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 21:52:20,846 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 2 variables, input treesize:51, output treesize:36 [2018-11-18 21:52:20,886 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-11-18 21:52:21,046 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 21:52:21,050 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 21:52:21,054 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 21:52:21,055 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2018-11-18 21:52:21,064 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:21,177 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 56 [2018-11-18 21:52:21,297 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 11 [2018-11-18 21:52:21,321 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:21,400 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 51 [2018-11-18 21:52:21,409 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 21:52:21,424 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:21,452 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 21:52:21,472 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 21:52:21,505 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-18 21:52:21,505 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 5 variables, input treesize:95, output treesize:63 [2018-11-18 21:52:21,528 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-11-18 21:52:22,223 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 42 [2018-11-18 21:52:22,289 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 15 [2018-11-18 21:52:22,291 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:22,315 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 5 treesize of output 1 [2018-11-18 21:52:22,318 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:22,338 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2018-11-18 21:52:22,341 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:22,347 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 21:52:22,356 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 21:52:22,357 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:67, output treesize:4 [2018-11-18 21:52:22,362 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-11-18 21:52:22,373 INFO L256 TraceCheckUtils]: 0: Hoare triple {5617#true} call ULTIMATE.init(); {5617#true} is VALID [2018-11-18 21:52:22,373 INFO L273 TraceCheckUtils]: 1: Hoare triple {5617#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1]; {5617#true} is VALID [2018-11-18 21:52:22,373 INFO L273 TraceCheckUtils]: 2: Hoare triple {5617#true} assume true; {5617#true} is VALID [2018-11-18 21:52:22,373 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {5617#true} {5617#true} #359#return; {5617#true} is VALID [2018-11-18 21:52:22,374 INFO L256 TraceCheckUtils]: 4: Hoare triple {5617#true} call #t~ret24 := main(); {5617#true} is VALID [2018-11-18 21:52:22,376 INFO L273 TraceCheckUtils]: 5: Hoare triple {5617#true} call #t~malloc0.base, #t~malloc0.offset := #Ultimate.alloc(8bv32);~head~0.base, ~head~0.offset := #t~malloc0.base, #t~malloc0.offset;call write~$Pointer$(0bv32, 0bv32, ~head~0.base, ~head~0.offset, 4bv32);call write~intINTTYPE4(0bv32, ~head~0.base, ~bvadd32(4bv32, ~head~0.offset), 4bv32);~item~0.base, ~item~0.offset := ~head~0.base, ~head~0.offset;~status~0 := 0bv32; {5637#(and (= main_~item~0.base main_~head~0.base) (= main_~head~0.offset main_~item~0.offset) (= (bvadd (select |#valid| main_~item~0.base) (_ bv1 1)) (_ bv0 1)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:22,377 INFO L273 TraceCheckUtils]: 6: Hoare triple {5637#(and (= main_~item~0.base main_~head~0.base) (= main_~head~0.offset main_~item~0.offset) (= (bvadd (select |#valid| main_~item~0.base) (_ bv1 1)) (_ bv0 1)) (= (_ bv0 32) main_~head~0.offset))} assume true; {5637#(and (= main_~item~0.base main_~head~0.base) (= main_~head~0.offset main_~item~0.offset) (= (bvadd (select |#valid| main_~item~0.base) (_ bv1 1)) (_ bv0 1)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:22,380 INFO L273 TraceCheckUtils]: 7: Hoare triple {5637#(and (= main_~item~0.base main_~head~0.base) (= main_~head~0.offset main_~item~0.offset) (= (bvadd (select |#valid| main_~item~0.base) (_ bv1 1)) (_ bv0 1)) (= (_ bv0 32) main_~head~0.offset))} assume !!(0bv32 != #t~nondet1);havoc #t~nondet1;call #t~malloc2.base, #t~malloc2.offset := #Ultimate.alloc(8bv32);call write~$Pointer$(#t~malloc2.base, #t~malloc2.offset, ~item~0.base, ~item~0.offset, 4bv32);call #t~mem3.base, #t~mem3.offset := read~$Pointer$(~item~0.base, ~item~0.offset, 4bv32);~item~0.base, ~item~0.offset := #t~mem3.base, #t~mem3.offset;havoc #t~mem3.base, #t~mem3.offset;call write~$Pointer$(0bv32, 0bv32, ~item~0.base, ~item~0.offset, 4bv32); {5644#(and (= (bvadd (select |#valid| main_~head~0.base) (_ bv1 1)) (_ bv0 1)) (not (= main_~item~0.base main_~head~0.base)) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| main_~item~0.base) main_~item~0.offset)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~item~0.base) (= (bvadd (select |#valid| main_~item~0.base) (_ bv1 1)) (_ bv0 1)) (not (= main_~item~0.base (_ bv0 32))) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:22,382 INFO L273 TraceCheckUtils]: 8: Hoare triple {5644#(and (= (bvadd (select |#valid| main_~head~0.base) (_ bv1 1)) (_ bv0 1)) (not (= main_~item~0.base main_~head~0.base)) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| main_~item~0.base) main_~item~0.offset)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~item~0.base) (= (bvadd (select |#valid| main_~item~0.base) (_ bv1 1)) (_ bv0 1)) (not (= main_~item~0.base (_ bv0 32))) (= (_ bv0 32) main_~head~0.offset))} assume 0bv32 == ~status~0;call write~intINTTYPE4(1bv32, ~item~0.base, ~bvadd32(4bv32, ~item~0.offset), 4bv32);~status~0 := 1bv32; {5644#(and (= (bvadd (select |#valid| main_~head~0.base) (_ bv1 1)) (_ bv0 1)) (not (= main_~item~0.base main_~head~0.base)) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| main_~item~0.base) main_~item~0.offset)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~item~0.base) (= (bvadd (select |#valid| main_~item~0.base) (_ bv1 1)) (_ bv0 1)) (not (= main_~item~0.base (_ bv0 32))) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:22,383 INFO L273 TraceCheckUtils]: 9: Hoare triple {5644#(and (= (bvadd (select |#valid| main_~head~0.base) (_ bv1 1)) (_ bv0 1)) (not (= main_~item~0.base main_~head~0.base)) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| main_~item~0.base) main_~item~0.offset)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~item~0.base) (= (bvadd (select |#valid| main_~item~0.base) (_ bv1 1)) (_ bv0 1)) (not (= main_~item~0.base (_ bv0 32))) (= (_ bv0 32) main_~head~0.offset))} assume true; {5644#(and (= (bvadd (select |#valid| main_~head~0.base) (_ bv1 1)) (_ bv0 1)) (not (= main_~item~0.base main_~head~0.base)) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| main_~item~0.base) main_~item~0.offset)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~item~0.base) (= (bvadd (select |#valid| main_~item~0.base) (_ bv1 1)) (_ bv0 1)) (not (= main_~item~0.base (_ bv0 32))) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:22,383 INFO L273 TraceCheckUtils]: 10: Hoare triple {5644#(and (= (bvadd (select |#valid| main_~head~0.base) (_ bv1 1)) (_ bv0 1)) (not (= main_~item~0.base main_~head~0.base)) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| main_~item~0.base) main_~item~0.offset)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~item~0.base) (= (bvadd (select |#valid| main_~item~0.base) (_ bv1 1)) (_ bv0 1)) (not (= main_~item~0.base (_ bv0 32))) (= (_ bv0 32) main_~head~0.offset))} assume !!(~head~0.base != 0bv32 || ~head~0.offset != 0bv32); {5644#(and (= (bvadd (select |#valid| main_~head~0.base) (_ bv1 1)) (_ bv0 1)) (not (= main_~item~0.base main_~head~0.base)) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| main_~item~0.base) main_~item~0.offset)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~item~0.base) (= (bvadd (select |#valid| main_~item~0.base) (_ bv1 1)) (_ bv0 1)) (not (= main_~item~0.base (_ bv0 32))) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:22,385 INFO L273 TraceCheckUtils]: 11: Hoare triple {5644#(and (= (bvadd (select |#valid| main_~head~0.base) (_ bv1 1)) (_ bv0 1)) (not (= main_~item~0.base main_~head~0.base)) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| main_~item~0.base) main_~item~0.offset)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~item~0.base) (= (bvadd (select |#valid| main_~item~0.base) (_ bv1 1)) (_ bv0 1)) (not (= main_~item~0.base (_ bv0 32))) (= (_ bv0 32) main_~head~0.offset))} assume true; {5644#(and (= (bvadd (select |#valid| main_~head~0.base) (_ bv1 1)) (_ bv0 1)) (not (= main_~item~0.base main_~head~0.base)) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| main_~item~0.base) main_~item~0.offset)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~item~0.base) (= (bvadd (select |#valid| main_~item~0.base) (_ bv1 1)) (_ bv0 1)) (not (= main_~item~0.base (_ bv0 32))) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:22,386 INFO L273 TraceCheckUtils]: 12: Hoare triple {5644#(and (= (bvadd (select |#valid| main_~head~0.base) (_ bv1 1)) (_ bv0 1)) (not (= main_~item~0.base main_~head~0.base)) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| main_~item~0.base) main_~item~0.offset)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~item~0.base) (= (bvadd (select |#valid| main_~item~0.base) (_ bv1 1)) (_ bv0 1)) (not (= main_~item~0.base (_ bv0 32))) (= (_ bv0 32) main_~head~0.offset))} assume true; {5644#(and (= (bvadd (select |#valid| main_~head~0.base) (_ bv1 1)) (_ bv0 1)) (not (= main_~item~0.base main_~head~0.base)) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| main_~item~0.base) main_~item~0.offset)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~item~0.base) (= (bvadd (select |#valid| main_~item~0.base) (_ bv1 1)) (_ bv0 1)) (not (= main_~item~0.base (_ bv0 32))) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:22,387 INFO L273 TraceCheckUtils]: 13: Hoare triple {5644#(and (= (bvadd (select |#valid| main_~head~0.base) (_ bv1 1)) (_ bv0 1)) (not (= main_~item~0.base main_~head~0.base)) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| main_~item~0.base) main_~item~0.offset)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~item~0.base) (= (bvadd (select |#valid| main_~item~0.base) (_ bv1 1)) (_ bv0 1)) (not (= main_~item~0.base (_ bv0 32))) (= (_ bv0 32) main_~head~0.offset))} assume !!(~item~0.base != 0bv32 || ~item~0.offset != 0bv32); {5644#(and (= (bvadd (select |#valid| main_~head~0.base) (_ bv1 1)) (_ bv0 1)) (not (= main_~item~0.base main_~head~0.base)) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| main_~item~0.base) main_~item~0.offset)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~item~0.base) (= (bvadd (select |#valid| main_~item~0.base) (_ bv1 1)) (_ bv0 1)) (not (= main_~item~0.base (_ bv0 32))) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:22,389 INFO L273 TraceCheckUtils]: 14: Hoare triple {5644#(and (= (bvadd (select |#valid| main_~head~0.base) (_ bv1 1)) (_ bv0 1)) (not (= main_~item~0.base main_~head~0.base)) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| main_~item~0.base) main_~item~0.offset)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~item~0.base) (= (bvadd (select |#valid| main_~item~0.base) (_ bv1 1)) (_ bv0 1)) (not (= main_~item~0.base (_ bv0 32))) (= (_ bv0 32) main_~head~0.offset))} assume true; {5644#(and (= (bvadd (select |#valid| main_~head~0.base) (_ bv1 1)) (_ bv0 1)) (not (= main_~item~0.base main_~head~0.base)) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| main_~item~0.base) main_~item~0.offset)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~item~0.base) (= (bvadd (select |#valid| main_~item~0.base) (_ bv1 1)) (_ bv0 1)) (not (= main_~item~0.base (_ bv0 32))) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:22,390 INFO L273 TraceCheckUtils]: 15: Hoare triple {5644#(and (= (bvadd (select |#valid| main_~head~0.base) (_ bv1 1)) (_ bv0 1)) (not (= main_~item~0.base main_~head~0.base)) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| main_~item~0.base) main_~item~0.offset)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~item~0.base) (= (bvadd (select |#valid| main_~item~0.base) (_ bv1 1)) (_ bv0 1)) (not (= main_~item~0.base (_ bv0 32))) (= (_ bv0 32) main_~head~0.offset))} assume true; {5644#(and (= (bvadd (select |#valid| main_~head~0.base) (_ bv1 1)) (_ bv0 1)) (not (= main_~item~0.base main_~head~0.base)) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| main_~item~0.base) main_~item~0.offset)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~item~0.base) (= (bvadd (select |#valid| main_~item~0.base) (_ bv1 1)) (_ bv0 1)) (not (= main_~item~0.base (_ bv0 32))) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:22,395 INFO L273 TraceCheckUtils]: 16: Hoare triple {5644#(and (= (bvadd (select |#valid| main_~head~0.base) (_ bv1 1)) (_ bv0 1)) (not (= main_~item~0.base main_~head~0.base)) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| main_~item~0.base) main_~item~0.offset)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~item~0.base) (= (bvadd (select |#valid| main_~item~0.base) (_ bv1 1)) (_ bv0 1)) (not (= main_~item~0.base (_ bv0 32))) (= (_ bv0 32) main_~head~0.offset))} assume !!(0bv32 != #t~nondet1);havoc #t~nondet1;call #t~malloc2.base, #t~malloc2.offset := #Ultimate.alloc(8bv32);call write~$Pointer$(#t~malloc2.base, #t~malloc2.offset, ~item~0.base, ~item~0.offset, 4bv32);call #t~mem3.base, #t~mem3.offset := read~$Pointer$(~item~0.base, ~item~0.offset, 4bv32);~item~0.base, ~item~0.offset := #t~mem3.base, #t~mem3.offset;havoc #t~mem3.base, #t~mem3.offset;call write~$Pointer$(0bv32, 0bv32, ~item~0.base, ~item~0.offset, 4bv32); {5672#(and (exists ((main_~item~0.offset (_ BitVec 32)) (v_main_~item~0.offset_24 (_ BitVec 32))) (and (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24)) main_~item~0.offset)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) main_~head~0.base)))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:22,396 INFO L273 TraceCheckUtils]: 17: Hoare triple {5672#(and (exists ((main_~item~0.offset (_ BitVec 32)) (v_main_~item~0.offset_24 (_ BitVec 32))) (and (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24)) main_~item~0.offset)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) main_~head~0.base)))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} assume !(0bv32 == ~status~0); {5672#(and (exists ((main_~item~0.offset (_ BitVec 32)) (v_main_~item~0.offset_24 (_ BitVec 32))) (and (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24)) main_~item~0.offset)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) main_~head~0.base)))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:22,397 INFO L273 TraceCheckUtils]: 18: Hoare triple {5672#(and (exists ((main_~item~0.offset (_ BitVec 32)) (v_main_~item~0.offset_24 (_ BitVec 32))) (and (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24)) main_~item~0.offset)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) main_~head~0.base)))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} assume 1bv32 == ~status~0;call write~intINTTYPE4(2bv32, ~item~0.base, ~bvadd32(4bv32, ~item~0.offset), 4bv32);~status~0 := 2bv32; {5672#(and (exists ((main_~item~0.offset (_ BitVec 32)) (v_main_~item~0.offset_24 (_ BitVec 32))) (and (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24)) main_~item~0.offset)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) main_~head~0.base)))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:22,398 INFO L273 TraceCheckUtils]: 19: Hoare triple {5672#(and (exists ((main_~item~0.offset (_ BitVec 32)) (v_main_~item~0.offset_24 (_ BitVec 32))) (and (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24)) main_~item~0.offset)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) main_~head~0.base)))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} assume true; {5672#(and (exists ((main_~item~0.offset (_ BitVec 32)) (v_main_~item~0.offset_24 (_ BitVec 32))) (and (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24)) main_~item~0.offset)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) main_~head~0.base)))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:22,398 INFO L273 TraceCheckUtils]: 20: Hoare triple {5672#(and (exists ((main_~item~0.offset (_ BitVec 32)) (v_main_~item~0.offset_24 (_ BitVec 32))) (and (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24)) main_~item~0.offset)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) main_~head~0.base)))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} assume !!(~head~0.base != 0bv32 || ~head~0.offset != 0bv32); {5672#(and (exists ((main_~item~0.offset (_ BitVec 32)) (v_main_~item~0.offset_24 (_ BitVec 32))) (and (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24)) main_~item~0.offset)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) main_~head~0.base)))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:22,399 INFO L273 TraceCheckUtils]: 21: Hoare triple {5672#(and (exists ((main_~item~0.offset (_ BitVec 32)) (v_main_~item~0.offset_24 (_ BitVec 32))) (and (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24)) main_~item~0.offset)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) main_~head~0.base)))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} assume true; {5672#(and (exists ((main_~item~0.offset (_ BitVec 32)) (v_main_~item~0.offset_24 (_ BitVec 32))) (and (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24)) main_~item~0.offset)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) main_~head~0.base)))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:22,400 INFO L273 TraceCheckUtils]: 22: Hoare triple {5672#(and (exists ((main_~item~0.offset (_ BitVec 32)) (v_main_~item~0.offset_24 (_ BitVec 32))) (and (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24)) main_~item~0.offset)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) main_~head~0.base)))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} assume true; {5672#(and (exists ((main_~item~0.offset (_ BitVec 32)) (v_main_~item~0.offset_24 (_ BitVec 32))) (and (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24)) main_~item~0.offset)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) main_~head~0.base)))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:22,401 INFO L273 TraceCheckUtils]: 23: Hoare triple {5672#(and (exists ((main_~item~0.offset (_ BitVec 32)) (v_main_~item~0.offset_24 (_ BitVec 32))) (and (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24)) main_~item~0.offset)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) main_~head~0.base)))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} assume !!(~item~0.base != 0bv32 || ~item~0.offset != 0bv32); {5672#(and (exists ((main_~item~0.offset (_ BitVec 32)) (v_main_~item~0.offset_24 (_ BitVec 32))) (and (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24)) main_~item~0.offset)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) main_~head~0.base)))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:22,402 INFO L273 TraceCheckUtils]: 24: Hoare triple {5672#(and (exists ((main_~item~0.offset (_ BitVec 32)) (v_main_~item~0.offset_24 (_ BitVec 32))) (and (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24)) main_~item~0.offset)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) main_~head~0.base)))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} assume true; {5672#(and (exists ((main_~item~0.offset (_ BitVec 32)) (v_main_~item~0.offset_24 (_ BitVec 32))) (and (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24)) main_~item~0.offset)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) main_~head~0.base)))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:22,403 INFO L273 TraceCheckUtils]: 25: Hoare triple {5672#(and (exists ((main_~item~0.offset (_ BitVec 32)) (v_main_~item~0.offset_24 (_ BitVec 32))) (and (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24)) main_~item~0.offset)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) main_~head~0.base)))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} assume true; {5672#(and (exists ((main_~item~0.offset (_ BitVec 32)) (v_main_~item~0.offset_24 (_ BitVec 32))) (and (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24)) main_~item~0.offset)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) main_~head~0.base)))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:22,406 INFO L273 TraceCheckUtils]: 26: Hoare triple {5672#(and (exists ((main_~item~0.offset (_ BitVec 32)) (v_main_~item~0.offset_24 (_ BitVec 32))) (and (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24)) main_~item~0.offset)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) main_~head~0.base)))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} assume !(0bv32 != #t~nondet1);havoc #t~nondet1; {5672#(and (exists ((main_~item~0.offset (_ BitVec 32)) (v_main_~item~0.offset_24 (_ BitVec 32))) (and (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24)) main_~item~0.offset)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) main_~head~0.base)))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:22,407 INFO L273 TraceCheckUtils]: 27: Hoare triple {5672#(and (exists ((main_~item~0.offset (_ BitVec 32)) (v_main_~item~0.offset_24 (_ BitVec 32))) (and (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24)) main_~item~0.offset)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) main_~head~0.base)))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} assume true; {5672#(and (exists ((main_~item~0.offset (_ BitVec 32)) (v_main_~item~0.offset_24 (_ BitVec 32))) (and (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24)) main_~item~0.offset)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) main_~head~0.base)))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:22,408 INFO L273 TraceCheckUtils]: 28: Hoare triple {5672#(and (exists ((main_~item~0.offset (_ BitVec 32)) (v_main_~item~0.offset_24 (_ BitVec 32))) (and (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24)) main_~item~0.offset)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) main_~head~0.base)))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} assume !!(~head~0.base != 0bv32 || ~head~0.offset != 0bv32); {5672#(and (exists ((main_~item~0.offset (_ BitVec 32)) (v_main_~item~0.offset_24 (_ BitVec 32))) (and (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24)) main_~item~0.offset)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) main_~head~0.base)))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:22,408 INFO L273 TraceCheckUtils]: 29: Hoare triple {5672#(and (exists ((main_~item~0.offset (_ BitVec 32)) (v_main_~item~0.offset_24 (_ BitVec 32))) (and (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24)) main_~item~0.offset)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) main_~head~0.base)))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} assume true; {5672#(and (exists ((main_~item~0.offset (_ BitVec 32)) (v_main_~item~0.offset_24 (_ BitVec 32))) (and (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24)) main_~item~0.offset)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) main_~head~0.base)))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:22,409 INFO L273 TraceCheckUtils]: 30: Hoare triple {5672#(and (exists ((main_~item~0.offset (_ BitVec 32)) (v_main_~item~0.offset_24 (_ BitVec 32))) (and (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24)) main_~item~0.offset)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) main_~head~0.base)))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} assume !(1bv32 == ~status~0); {5672#(and (exists ((main_~item~0.offset (_ BitVec 32)) (v_main_~item~0.offset_24 (_ BitVec 32))) (and (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24)) main_~item~0.offset)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) main_~head~0.base)))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:22,409 INFO L273 TraceCheckUtils]: 31: Hoare triple {5672#(and (exists ((main_~item~0.offset (_ BitVec 32)) (v_main_~item~0.offset_24 (_ BitVec 32))) (and (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24)) main_~item~0.offset)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) main_~head~0.base)))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} assume 2bv32 == ~status~0; {5672#(and (exists ((main_~item~0.offset (_ BitVec 32)) (v_main_~item~0.offset_24 (_ BitVec 32))) (and (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24)) main_~item~0.offset)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) main_~head~0.base)))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:22,410 INFO L273 TraceCheckUtils]: 32: Hoare triple {5672#(and (exists ((main_~item~0.offset (_ BitVec 32)) (v_main_~item~0.offset_24 (_ BitVec 32))) (and (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24)) main_~item~0.offset)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) main_~head~0.base)))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} assume true; {5672#(and (exists ((main_~item~0.offset (_ BitVec 32)) (v_main_~item~0.offset_24 (_ BitVec 32))) (and (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24)) main_~item~0.offset)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) main_~head~0.base)))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:22,411 INFO L273 TraceCheckUtils]: 33: Hoare triple {5672#(and (exists ((main_~item~0.offset (_ BitVec 32)) (v_main_~item~0.offset_24 (_ BitVec 32))) (and (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24)) main_~item~0.offset)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) main_~head~0.base)))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} assume !!(~head~0.base != 0bv32 || ~head~0.offset != 0bv32); {5672#(and (exists ((main_~item~0.offset (_ BitVec 32)) (v_main_~item~0.offset_24 (_ BitVec 32))) (and (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24)) main_~item~0.offset)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) main_~head~0.base)))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:22,412 INFO L273 TraceCheckUtils]: 34: Hoare triple {5672#(and (exists ((main_~item~0.offset (_ BitVec 32)) (v_main_~item~0.offset_24 (_ BitVec 32))) (and (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24)) main_~item~0.offset)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) main_~head~0.base)))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} assume true; {5672#(and (exists ((main_~item~0.offset (_ BitVec 32)) (v_main_~item~0.offset_24 (_ BitVec 32))) (and (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24)) main_~item~0.offset)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) main_~head~0.base)))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} is VALID [2018-11-18 21:52:22,413 INFO L273 TraceCheckUtils]: 35: Hoare triple {5672#(and (exists ((main_~item~0.offset (_ BitVec 32)) (v_main_~item~0.offset_24 (_ BitVec 32))) (and (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset))) (= (_ bv0 32) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24)) main_~item~0.offset)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset)) v_main_~item~0.offset_24) main_~head~0.base)))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32))) (not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) main_~head~0.base)) (= (_ bv0 32) main_~head~0.offset))} assume true;call #t~mem5.base, #t~mem5.offset := read~$Pointer$(~head~0.base, ~head~0.offset, 4bv32); {5730#(not (= |main_#t~mem5.base| (_ bv0 32)))} is VALID [2018-11-18 21:52:22,414 INFO L273 TraceCheckUtils]: 36: Hoare triple {5730#(not (= |main_#t~mem5.base| (_ bv0 32)))} assume !(#t~mem5.base != 0bv32 || #t~mem5.offset != 0bv32);havoc #t~mem5.base, #t~mem5.offset; {5618#false} is VALID [2018-11-18 21:52:22,414 INFO L273 TraceCheckUtils]: 37: Hoare triple {5618#false} assume !false; {5618#false} is VALID [2018-11-18 21:52:22,425 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 21:52:22,426 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 21:52:23,108 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 42 [2018-11-18 21:52:23,117 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-18 21:52:23,120 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:23,207 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 51 [2018-11-18 21:52:23,514 WARN L180 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2018-11-18 21:52:23,523 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 29 treesize of output 28 [2018-11-18 21:52:23,526 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:23,531 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 29 treesize of output 28 [2018-11-18 21:52:23,533 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:23,742 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 21:52:23,762 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 37 [2018-11-18 21:52:23,766 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2018-11-18 21:52:23,774 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 21:52:23,796 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 37 [2018-11-18 21:52:23,799 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2018-11-18 21:52:24,161 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 44 [2018-11-18 21:52:24,534 WARN L180 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2018-11-18 21:52:24,548 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 22 treesize of output 16 [2018-11-18 21:52:24,552 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:24,903 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 21 treesize of output 15 [2018-11-18 21:52:24,906 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:24,914 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 21:52:24,914 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 21:52:24,915 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16 [2018-11-18 21:52:24,922 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:25,241 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 21:52:25,242 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 21:52:25,243 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2018-11-18 21:52:25,257 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:25,471 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 16 treesize of output 10 [2018-11-18 21:52:25,474 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:25,691 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 25 treesize of output 19 [2018-11-18 21:52:25,693 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:25,912 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 21:52:25,913 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 21:52:25,914 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2018-11-18 21:52:25,917 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:26,382 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 21:52:26,383 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 21:52:26,387 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 21:52:26,387 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 21:52:26,399 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 21 [2018-11-18 21:52:26,402 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 2 xjuncts. [2018-11-18 21:52:26,519 INFO L267 ElimStorePlain]: Start of recursive call 9: 10 dim-1 vars, End of recursive call: and 7 xjuncts. [2018-11-18 21:52:26,547 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2018-11-18 21:52:26,559 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 18 treesize of output 12 [2018-11-18 21:52:26,561 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:26,613 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 21:52:26,613 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 21:52:26,614 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 15 [2018-11-18 21:52:26,621 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:26,655 INFO L267 ElimStorePlain]: Start of recursive call 18: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 21:52:26,916 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 15 [2018-11-18 21:52:26,924 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 6 treesize of output 1 [2018-11-18 21:52:26,926 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:26,936 INFO L267 ElimStorePlain]: Start of recursive call 21: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 21:52:26,958 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 29 [2018-11-18 21:52:26,968 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 24 treesize of output 18 [2018-11-18 21:52:26,971 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:27,035 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 17 [2018-11-18 21:52:27,039 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 2 xjuncts. [2018-11-18 21:52:27,092 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 18 treesize of output 12 [2018-11-18 21:52:27,095 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:27,137 INFO L267 ElimStorePlain]: Start of recursive call 23: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 21:52:27,397 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 25 treesize of output 43 [2018-11-18 21:52:27,501 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 21:52:27,513 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 21:52:27,516 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 21:52:27,516 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 21:52:27,532 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 24 [2018-11-18 21:52:27,539 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 2 xjuncts. [2018-11-18 21:52:27,876 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 21:52:27,876 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 21:52:27,880 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 21:52:27,881 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 21:52:27,896 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 24 [2018-11-18 21:52:27,900 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 2 xjuncts. [2018-11-18 21:52:28,237 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 21:52:28,238 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 21:52:28,239 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2018-11-18 21:52:28,241 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:28,525 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 25 treesize of output 19 [2018-11-18 21:52:28,528 INFO L267 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:28,795 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 28 treesize of output 22 [2018-11-18 21:52:28,799 INFO L267 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:29,062 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 15 [2018-11-18 21:52:29,065 INFO L267 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 2 xjuncts. [2018-11-18 21:52:29,277 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 22 treesize of output 16 [2018-11-18 21:52:29,279 INFO L267 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:29,518 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 25 treesize of output 19 [2018-11-18 21:52:29,522 INFO L267 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:29,951 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 21:52:29,951 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 21:52:29,952 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2018-11-18 21:52:29,958 INFO L267 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:30,188 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 16 treesize of output 10 [2018-11-18 21:52:30,191 INFO L267 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:30,340 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 21:52:30,340 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 21:52:30,344 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 21:52:30,344 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 21:52:30,356 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 21 [2018-11-18 21:52:30,360 INFO L267 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 2 xjuncts. [2018-11-18 21:52:30,491 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 16 treesize of output 10 [2018-11-18 21:52:30,493 INFO L267 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:30,600 INFO L267 ElimStorePlain]: Start of recursive call 27: 13 dim-1 vars, End of recursive call: and 7 xjuncts. [2018-11-18 21:52:30,728 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 8 xjuncts. [2018-11-18 21:52:30,826 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 8 xjuncts. [2018-11-18 21:52:30,958 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 11 dim-0 vars, and 8 xjuncts. [2018-11-18 21:52:30,959 INFO L202 ElimStorePlain]: Needed 39 recursive calls to eliminate 5 variables, input treesize:83, output treesize:177 [2018-11-18 21:52:31,138 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-11-18 21:52:33,519 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 57 [2018-11-18 21:52:33,592 INFO L273 TraceCheckUtils]: 37: Hoare triple {5618#false} assume !false; {5618#false} is VALID [2018-11-18 21:52:33,593 INFO L273 TraceCheckUtils]: 36: Hoare triple {5730#(not (= |main_#t~mem5.base| (_ bv0 32)))} assume !(#t~mem5.base != 0bv32 || #t~mem5.offset != 0bv32);havoc #t~mem5.base, #t~mem5.offset; {5618#false} is VALID [2018-11-18 21:52:33,594 INFO L273 TraceCheckUtils]: 35: Hoare triple {5743#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} assume true;call #t~mem5.base, #t~mem5.offset := read~$Pointer$(~head~0.base, ~head~0.offset, 4bv32); {5730#(not (= |main_#t~mem5.base| (_ bv0 32)))} is VALID [2018-11-18 21:52:33,594 INFO L273 TraceCheckUtils]: 34: Hoare triple {5743#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} assume true; {5743#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} is VALID [2018-11-18 21:52:33,595 INFO L273 TraceCheckUtils]: 33: Hoare triple {5743#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} assume !!(~head~0.base != 0bv32 || ~head~0.offset != 0bv32); {5743#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} is VALID [2018-11-18 21:52:33,595 INFO L273 TraceCheckUtils]: 32: Hoare triple {5743#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} assume true; {5743#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} is VALID [2018-11-18 21:52:33,596 INFO L273 TraceCheckUtils]: 31: Hoare triple {5743#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} assume 2bv32 == ~status~0; {5743#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} is VALID [2018-11-18 21:52:33,597 INFO L273 TraceCheckUtils]: 30: Hoare triple {5743#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} assume !(1bv32 == ~status~0); {5743#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} is VALID [2018-11-18 21:52:33,597 INFO L273 TraceCheckUtils]: 29: Hoare triple {5743#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} assume true; {5743#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} is VALID [2018-11-18 21:52:33,598 INFO L273 TraceCheckUtils]: 28: Hoare triple {5743#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} assume !!(~head~0.base != 0bv32 || ~head~0.offset != 0bv32); {5743#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} is VALID [2018-11-18 21:52:33,598 INFO L273 TraceCheckUtils]: 27: Hoare triple {5743#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} assume true; {5743#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} is VALID [2018-11-18 21:52:33,599 INFO L273 TraceCheckUtils]: 26: Hoare triple {5743#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} assume !(0bv32 != #t~nondet1);havoc #t~nondet1; {5743#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} is VALID [2018-11-18 21:52:33,599 INFO L273 TraceCheckUtils]: 25: Hoare triple {5743#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} assume true; {5743#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} is VALID [2018-11-18 21:52:33,600 INFO L273 TraceCheckUtils]: 24: Hoare triple {5743#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} assume true; {5743#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} is VALID [2018-11-18 21:52:33,601 INFO L273 TraceCheckUtils]: 23: Hoare triple {5743#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} assume !!(~item~0.base != 0bv32 || ~item~0.offset != 0bv32); {5743#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} is VALID [2018-11-18 21:52:33,601 INFO L273 TraceCheckUtils]: 22: Hoare triple {5743#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} assume true; {5743#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} is VALID [2018-11-18 21:52:33,602 INFO L273 TraceCheckUtils]: 21: Hoare triple {5743#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} assume true; {5743#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} is VALID [2018-11-18 21:52:33,602 INFO L273 TraceCheckUtils]: 20: Hoare triple {5743#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} assume !!(~head~0.base != 0bv32 || ~head~0.offset != 0bv32); {5743#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} is VALID [2018-11-18 21:52:33,603 INFO L273 TraceCheckUtils]: 19: Hoare triple {5743#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} assume true; {5743#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} is VALID [2018-11-18 21:52:33,603 INFO L273 TraceCheckUtils]: 18: Hoare triple {5743#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} assume 1bv32 == ~status~0;call write~intINTTYPE4(2bv32, ~item~0.base, ~bvadd32(4bv32, ~item~0.offset), 4bv32);~status~0 := 2bv32; {5743#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} is VALID [2018-11-18 21:52:33,604 INFO L273 TraceCheckUtils]: 17: Hoare triple {5743#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} assume !(0bv32 == ~status~0); {5743#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} is VALID [2018-11-18 21:52:35,161 INFO L273 TraceCheckUtils]: 16: Hoare triple {5801#(forall ((v_main_~item~0.offset_25 (_ BitVec 32)) (|v_main_#t~malloc2.base_4| (_ BitVec 32))) (or (not (= (select |#valid| |v_main_#t~malloc2.base_4|) (_ bv0 1))) (not (= (select (select (store (store |#memory_$Pointer$.base| main_~item~0.base (store (select |#memory_$Pointer$.base| main_~item~0.base) main_~item~0.offset |v_main_#t~malloc2.base_4|)) |v_main_#t~malloc2.base_4| (store (select (store |#memory_$Pointer$.base| main_~item~0.base (store (select |#memory_$Pointer$.base| main_~item~0.base) main_~item~0.offset |v_main_#t~malloc2.base_4|)) |v_main_#t~malloc2.base_4|) v_main_~item~0.offset_25 (_ bv0 32))) main_~head~0.base) main_~head~0.offset) (_ bv0 32)))))} assume !!(0bv32 != #t~nondet1);havoc #t~nondet1;call #t~malloc2.base, #t~malloc2.offset := #Ultimate.alloc(8bv32);call write~$Pointer$(#t~malloc2.base, #t~malloc2.offset, ~item~0.base, ~item~0.offset, 4bv32);call #t~mem3.base, #t~mem3.offset := read~$Pointer$(~item~0.base, ~item~0.offset, 4bv32);~item~0.base, ~item~0.offset := #t~mem3.base, #t~mem3.offset;havoc #t~mem3.base, #t~mem3.offset;call write~$Pointer$(0bv32, 0bv32, ~item~0.base, ~item~0.offset, 4bv32); {5743#(not (= (select (select |#memory_$Pointer$.base| main_~head~0.base) main_~head~0.offset) (_ bv0 32)))} is VALID [2018-11-18 21:52:35,162 INFO L273 TraceCheckUtils]: 15: Hoare triple {5801#(forall ((v_main_~item~0.offset_25 (_ BitVec 32)) (|v_main_#t~malloc2.base_4| (_ BitVec 32))) (or (not (= (select |#valid| |v_main_#t~malloc2.base_4|) (_ bv0 1))) (not (= (select (select (store (store |#memory_$Pointer$.base| main_~item~0.base (store (select |#memory_$Pointer$.base| main_~item~0.base) main_~item~0.offset |v_main_#t~malloc2.base_4|)) |v_main_#t~malloc2.base_4| (store (select (store |#memory_$Pointer$.base| main_~item~0.base (store (select |#memory_$Pointer$.base| main_~item~0.base) main_~item~0.offset |v_main_#t~malloc2.base_4|)) |v_main_#t~malloc2.base_4|) v_main_~item~0.offset_25 (_ bv0 32))) main_~head~0.base) main_~head~0.offset) (_ bv0 32)))))} assume true; {5801#(forall ((v_main_~item~0.offset_25 (_ BitVec 32)) (|v_main_#t~malloc2.base_4| (_ BitVec 32))) (or (not (= (select |#valid| |v_main_#t~malloc2.base_4|) (_ bv0 1))) (not (= (select (select (store (store |#memory_$Pointer$.base| main_~item~0.base (store (select |#memory_$Pointer$.base| main_~item~0.base) main_~item~0.offset |v_main_#t~malloc2.base_4|)) |v_main_#t~malloc2.base_4| (store (select (store |#memory_$Pointer$.base| main_~item~0.base (store (select |#memory_$Pointer$.base| main_~item~0.base) main_~item~0.offset |v_main_#t~malloc2.base_4|)) |v_main_#t~malloc2.base_4|) v_main_~item~0.offset_25 (_ bv0 32))) main_~head~0.base) main_~head~0.offset) (_ bv0 32)))))} is VALID [2018-11-18 21:52:35,162 INFO L273 TraceCheckUtils]: 14: Hoare triple {5801#(forall ((v_main_~item~0.offset_25 (_ BitVec 32)) (|v_main_#t~malloc2.base_4| (_ BitVec 32))) (or (not (= (select |#valid| |v_main_#t~malloc2.base_4|) (_ bv0 1))) (not (= (select (select (store (store |#memory_$Pointer$.base| main_~item~0.base (store (select |#memory_$Pointer$.base| main_~item~0.base) main_~item~0.offset |v_main_#t~malloc2.base_4|)) |v_main_#t~malloc2.base_4| (store (select (store |#memory_$Pointer$.base| main_~item~0.base (store (select |#memory_$Pointer$.base| main_~item~0.base) main_~item~0.offset |v_main_#t~malloc2.base_4|)) |v_main_#t~malloc2.base_4|) v_main_~item~0.offset_25 (_ bv0 32))) main_~head~0.base) main_~head~0.offset) (_ bv0 32)))))} assume true; {5801#(forall ((v_main_~item~0.offset_25 (_ BitVec 32)) (|v_main_#t~malloc2.base_4| (_ BitVec 32))) (or (not (= (select |#valid| |v_main_#t~malloc2.base_4|) (_ bv0 1))) (not (= (select (select (store (store |#memory_$Pointer$.base| main_~item~0.base (store (select |#memory_$Pointer$.base| main_~item~0.base) main_~item~0.offset |v_main_#t~malloc2.base_4|)) |v_main_#t~malloc2.base_4| (store (select (store |#memory_$Pointer$.base| main_~item~0.base (store (select |#memory_$Pointer$.base| main_~item~0.base) main_~item~0.offset |v_main_#t~malloc2.base_4|)) |v_main_#t~malloc2.base_4|) v_main_~item~0.offset_25 (_ bv0 32))) main_~head~0.base) main_~head~0.offset) (_ bv0 32)))))} is VALID [2018-11-18 21:52:35,166 INFO L273 TraceCheckUtils]: 13: Hoare triple {5801#(forall ((v_main_~item~0.offset_25 (_ BitVec 32)) (|v_main_#t~malloc2.base_4| (_ BitVec 32))) (or (not (= (select |#valid| |v_main_#t~malloc2.base_4|) (_ bv0 1))) (not (= (select (select (store (store |#memory_$Pointer$.base| main_~item~0.base (store (select |#memory_$Pointer$.base| main_~item~0.base) main_~item~0.offset |v_main_#t~malloc2.base_4|)) |v_main_#t~malloc2.base_4| (store (select (store |#memory_$Pointer$.base| main_~item~0.base (store (select |#memory_$Pointer$.base| main_~item~0.base) main_~item~0.offset |v_main_#t~malloc2.base_4|)) |v_main_#t~malloc2.base_4|) v_main_~item~0.offset_25 (_ bv0 32))) main_~head~0.base) main_~head~0.offset) (_ bv0 32)))))} assume !!(~item~0.base != 0bv32 || ~item~0.offset != 0bv32); {5801#(forall ((v_main_~item~0.offset_25 (_ BitVec 32)) (|v_main_#t~malloc2.base_4| (_ BitVec 32))) (or (not (= (select |#valid| |v_main_#t~malloc2.base_4|) (_ bv0 1))) (not (= (select (select (store (store |#memory_$Pointer$.base| main_~item~0.base (store (select |#memory_$Pointer$.base| main_~item~0.base) main_~item~0.offset |v_main_#t~malloc2.base_4|)) |v_main_#t~malloc2.base_4| (store (select (store |#memory_$Pointer$.base| main_~item~0.base (store (select |#memory_$Pointer$.base| main_~item~0.base) main_~item~0.offset |v_main_#t~malloc2.base_4|)) |v_main_#t~malloc2.base_4|) v_main_~item~0.offset_25 (_ bv0 32))) main_~head~0.base) main_~head~0.offset) (_ bv0 32)))))} is VALID [2018-11-18 21:52:35,166 INFO L273 TraceCheckUtils]: 12: Hoare triple {5801#(forall ((v_main_~item~0.offset_25 (_ BitVec 32)) (|v_main_#t~malloc2.base_4| (_ BitVec 32))) (or (not (= (select |#valid| |v_main_#t~malloc2.base_4|) (_ bv0 1))) (not (= (select (select (store (store |#memory_$Pointer$.base| main_~item~0.base (store (select |#memory_$Pointer$.base| main_~item~0.base) main_~item~0.offset |v_main_#t~malloc2.base_4|)) |v_main_#t~malloc2.base_4| (store (select (store |#memory_$Pointer$.base| main_~item~0.base (store (select |#memory_$Pointer$.base| main_~item~0.base) main_~item~0.offset |v_main_#t~malloc2.base_4|)) |v_main_#t~malloc2.base_4|) v_main_~item~0.offset_25 (_ bv0 32))) main_~head~0.base) main_~head~0.offset) (_ bv0 32)))))} assume true; {5801#(forall ((v_main_~item~0.offset_25 (_ BitVec 32)) (|v_main_#t~malloc2.base_4| (_ BitVec 32))) (or (not (= (select |#valid| |v_main_#t~malloc2.base_4|) (_ bv0 1))) (not (= (select (select (store (store |#memory_$Pointer$.base| main_~item~0.base (store (select |#memory_$Pointer$.base| main_~item~0.base) main_~item~0.offset |v_main_#t~malloc2.base_4|)) |v_main_#t~malloc2.base_4| (store (select (store |#memory_$Pointer$.base| main_~item~0.base (store (select |#memory_$Pointer$.base| main_~item~0.base) main_~item~0.offset |v_main_#t~malloc2.base_4|)) |v_main_#t~malloc2.base_4|) v_main_~item~0.offset_25 (_ bv0 32))) main_~head~0.base) main_~head~0.offset) (_ bv0 32)))))} is VALID [2018-11-18 21:52:35,170 INFO L273 TraceCheckUtils]: 11: Hoare triple {5801#(forall ((v_main_~item~0.offset_25 (_ BitVec 32)) (|v_main_#t~malloc2.base_4| (_ BitVec 32))) (or (not (= (select |#valid| |v_main_#t~malloc2.base_4|) (_ bv0 1))) (not (= (select (select (store (store |#memory_$Pointer$.base| main_~item~0.base (store (select |#memory_$Pointer$.base| main_~item~0.base) main_~item~0.offset |v_main_#t~malloc2.base_4|)) |v_main_#t~malloc2.base_4| (store (select (store |#memory_$Pointer$.base| main_~item~0.base (store (select |#memory_$Pointer$.base| main_~item~0.base) main_~item~0.offset |v_main_#t~malloc2.base_4|)) |v_main_#t~malloc2.base_4|) v_main_~item~0.offset_25 (_ bv0 32))) main_~head~0.base) main_~head~0.offset) (_ bv0 32)))))} assume true; {5801#(forall ((v_main_~item~0.offset_25 (_ BitVec 32)) (|v_main_#t~malloc2.base_4| (_ BitVec 32))) (or (not (= (select |#valid| |v_main_#t~malloc2.base_4|) (_ bv0 1))) (not (= (select (select (store (store |#memory_$Pointer$.base| main_~item~0.base (store (select |#memory_$Pointer$.base| main_~item~0.base) main_~item~0.offset |v_main_#t~malloc2.base_4|)) |v_main_#t~malloc2.base_4| (store (select (store |#memory_$Pointer$.base| main_~item~0.base (store (select |#memory_$Pointer$.base| main_~item~0.base) main_~item~0.offset |v_main_#t~malloc2.base_4|)) |v_main_#t~malloc2.base_4|) v_main_~item~0.offset_25 (_ bv0 32))) main_~head~0.base) main_~head~0.offset) (_ bv0 32)))))} is VALID [2018-11-18 21:52:35,172 INFO L273 TraceCheckUtils]: 10: Hoare triple {5801#(forall ((v_main_~item~0.offset_25 (_ BitVec 32)) (|v_main_#t~malloc2.base_4| (_ BitVec 32))) (or (not (= (select |#valid| |v_main_#t~malloc2.base_4|) (_ bv0 1))) (not (= (select (select (store (store |#memory_$Pointer$.base| main_~item~0.base (store (select |#memory_$Pointer$.base| main_~item~0.base) main_~item~0.offset |v_main_#t~malloc2.base_4|)) |v_main_#t~malloc2.base_4| (store (select (store |#memory_$Pointer$.base| main_~item~0.base (store (select |#memory_$Pointer$.base| main_~item~0.base) main_~item~0.offset |v_main_#t~malloc2.base_4|)) |v_main_#t~malloc2.base_4|) v_main_~item~0.offset_25 (_ bv0 32))) main_~head~0.base) main_~head~0.offset) (_ bv0 32)))))} assume !!(~head~0.base != 0bv32 || ~head~0.offset != 0bv32); {5801#(forall ((v_main_~item~0.offset_25 (_ BitVec 32)) (|v_main_#t~malloc2.base_4| (_ BitVec 32))) (or (not (= (select |#valid| |v_main_#t~malloc2.base_4|) (_ bv0 1))) (not (= (select (select (store (store |#memory_$Pointer$.base| main_~item~0.base (store (select |#memory_$Pointer$.base| main_~item~0.base) main_~item~0.offset |v_main_#t~malloc2.base_4|)) |v_main_#t~malloc2.base_4| (store (select (store |#memory_$Pointer$.base| main_~item~0.base (store (select |#memory_$Pointer$.base| main_~item~0.base) main_~item~0.offset |v_main_#t~malloc2.base_4|)) |v_main_#t~malloc2.base_4|) v_main_~item~0.offset_25 (_ bv0 32))) main_~head~0.base) main_~head~0.offset) (_ bv0 32)))))} is VALID [2018-11-18 21:52:35,172 INFO L273 TraceCheckUtils]: 9: Hoare triple {5801#(forall ((v_main_~item~0.offset_25 (_ BitVec 32)) (|v_main_#t~malloc2.base_4| (_ BitVec 32))) (or (not (= (select |#valid| |v_main_#t~malloc2.base_4|) (_ bv0 1))) (not (= (select (select (store (store |#memory_$Pointer$.base| main_~item~0.base (store (select |#memory_$Pointer$.base| main_~item~0.base) main_~item~0.offset |v_main_#t~malloc2.base_4|)) |v_main_#t~malloc2.base_4| (store (select (store |#memory_$Pointer$.base| main_~item~0.base (store (select |#memory_$Pointer$.base| main_~item~0.base) main_~item~0.offset |v_main_#t~malloc2.base_4|)) |v_main_#t~malloc2.base_4|) v_main_~item~0.offset_25 (_ bv0 32))) main_~head~0.base) main_~head~0.offset) (_ bv0 32)))))} assume true; {5801#(forall ((v_main_~item~0.offset_25 (_ BitVec 32)) (|v_main_#t~malloc2.base_4| (_ BitVec 32))) (or (not (= (select |#valid| |v_main_#t~malloc2.base_4|) (_ bv0 1))) (not (= (select (select (store (store |#memory_$Pointer$.base| main_~item~0.base (store (select |#memory_$Pointer$.base| main_~item~0.base) main_~item~0.offset |v_main_#t~malloc2.base_4|)) |v_main_#t~malloc2.base_4| (store (select (store |#memory_$Pointer$.base| main_~item~0.base (store (select |#memory_$Pointer$.base| main_~item~0.base) main_~item~0.offset |v_main_#t~malloc2.base_4|)) |v_main_#t~malloc2.base_4|) v_main_~item~0.offset_25 (_ bv0 32))) main_~head~0.base) main_~head~0.offset) (_ bv0 32)))))} is VALID [2018-11-18 21:52:35,175 INFO L273 TraceCheckUtils]: 8: Hoare triple {5801#(forall ((v_main_~item~0.offset_25 (_ BitVec 32)) (|v_main_#t~malloc2.base_4| (_ BitVec 32))) (or (not (= (select |#valid| |v_main_#t~malloc2.base_4|) (_ bv0 1))) (not (= (select (select (store (store |#memory_$Pointer$.base| main_~item~0.base (store (select |#memory_$Pointer$.base| main_~item~0.base) main_~item~0.offset |v_main_#t~malloc2.base_4|)) |v_main_#t~malloc2.base_4| (store (select (store |#memory_$Pointer$.base| main_~item~0.base (store (select |#memory_$Pointer$.base| main_~item~0.base) main_~item~0.offset |v_main_#t~malloc2.base_4|)) |v_main_#t~malloc2.base_4|) v_main_~item~0.offset_25 (_ bv0 32))) main_~head~0.base) main_~head~0.offset) (_ bv0 32)))))} assume 0bv32 == ~status~0;call write~intINTTYPE4(1bv32, ~item~0.base, ~bvadd32(4bv32, ~item~0.offset), 4bv32);~status~0 := 1bv32; {5801#(forall ((v_main_~item~0.offset_25 (_ BitVec 32)) (|v_main_#t~malloc2.base_4| (_ BitVec 32))) (or (not (= (select |#valid| |v_main_#t~malloc2.base_4|) (_ bv0 1))) (not (= (select (select (store (store |#memory_$Pointer$.base| main_~item~0.base (store (select |#memory_$Pointer$.base| main_~item~0.base) main_~item~0.offset |v_main_#t~malloc2.base_4|)) |v_main_#t~malloc2.base_4| (store (select (store |#memory_$Pointer$.base| main_~item~0.base (store (select |#memory_$Pointer$.base| main_~item~0.base) main_~item~0.offset |v_main_#t~malloc2.base_4|)) |v_main_#t~malloc2.base_4|) v_main_~item~0.offset_25 (_ bv0 32))) main_~head~0.base) main_~head~0.offset) (_ bv0 32)))))} is VALID [2018-11-18 21:52:35,180 INFO L273 TraceCheckUtils]: 7: Hoare triple {5829#(and (or (= main_~item~0.base main_~head~0.base) (forall ((v_prenex_37 (_ BitVec 32)) (v_prenex_36 (_ BitVec 32))) (or (not (= (select (store |#valid| v_prenex_36 (_ bv1 1)) v_prenex_37) (_ bv0 1))) (not (= (_ bv0 1) (select |#valid| v_prenex_36))) (= v_prenex_36 (_ bv0 32))))) (or (forall ((v_prenex_40 (_ BitVec 32)) (v_prenex_41 (_ BitVec 32))) (or (= v_prenex_40 (_ bv0 32)) (= v_prenex_40 main_~head~0.base) (not (= (_ bv0 1) (select |#valid| v_prenex_40))) (not (= (select (store |#valid| v_prenex_40 (_ bv1 1)) v_prenex_41) (_ bv0 1))))) (= main_~head~0.offset main_~item~0.offset)) (or (not (= (select |#valid| main_~item~0.base) (_ bv0 1))) (not (= (select (store |#valid| main_~item~0.base (_ bv1 1)) (_ bv0 32)) (_ bv0 1)))) (forall ((v_prenex_42 (_ BitVec 32))) (or (not (= (select (store |#valid| v_prenex_42 (_ bv1 1)) main_~head~0.base) (_ bv0 1))) (= v_prenex_42 (_ bv0 32)) (not (= (_ bv0 1) (select |#valid| v_prenex_42))))))} assume !!(0bv32 != #t~nondet1);havoc #t~nondet1;call #t~malloc2.base, #t~malloc2.offset := #Ultimate.alloc(8bv32);call write~$Pointer$(#t~malloc2.base, #t~malloc2.offset, ~item~0.base, ~item~0.offset, 4bv32);call #t~mem3.base, #t~mem3.offset := read~$Pointer$(~item~0.base, ~item~0.offset, 4bv32);~item~0.base, ~item~0.offset := #t~mem3.base, #t~mem3.offset;havoc #t~mem3.base, #t~mem3.offset;call write~$Pointer$(0bv32, 0bv32, ~item~0.base, ~item~0.offset, 4bv32); {5801#(forall ((v_main_~item~0.offset_25 (_ BitVec 32)) (|v_main_#t~malloc2.base_4| (_ BitVec 32))) (or (not (= (select |#valid| |v_main_#t~malloc2.base_4|) (_ bv0 1))) (not (= (select (select (store (store |#memory_$Pointer$.base| main_~item~0.base (store (select |#memory_$Pointer$.base| main_~item~0.base) main_~item~0.offset |v_main_#t~malloc2.base_4|)) |v_main_#t~malloc2.base_4| (store (select (store |#memory_$Pointer$.base| main_~item~0.base (store (select |#memory_$Pointer$.base| main_~item~0.base) main_~item~0.offset |v_main_#t~malloc2.base_4|)) |v_main_#t~malloc2.base_4|) v_main_~item~0.offset_25 (_ bv0 32))) main_~head~0.base) main_~head~0.offset) (_ bv0 32)))))} is VALID [2018-11-18 21:52:35,182 INFO L273 TraceCheckUtils]: 6: Hoare triple {5829#(and (or (= main_~item~0.base main_~head~0.base) (forall ((v_prenex_37 (_ BitVec 32)) (v_prenex_36 (_ BitVec 32))) (or (not (= (select (store |#valid| v_prenex_36 (_ bv1 1)) v_prenex_37) (_ bv0 1))) (not (= (_ bv0 1) (select |#valid| v_prenex_36))) (= v_prenex_36 (_ bv0 32))))) (or (forall ((v_prenex_40 (_ BitVec 32)) (v_prenex_41 (_ BitVec 32))) (or (= v_prenex_40 (_ bv0 32)) (= v_prenex_40 main_~head~0.base) (not (= (_ bv0 1) (select |#valid| v_prenex_40))) (not (= (select (store |#valid| v_prenex_40 (_ bv1 1)) v_prenex_41) (_ bv0 1))))) (= main_~head~0.offset main_~item~0.offset)) (or (not (= (select |#valid| main_~item~0.base) (_ bv0 1))) (not (= (select (store |#valid| main_~item~0.base (_ bv1 1)) (_ bv0 32)) (_ bv0 1)))) (forall ((v_prenex_42 (_ BitVec 32))) (or (not (= (select (store |#valid| v_prenex_42 (_ bv1 1)) main_~head~0.base) (_ bv0 1))) (= v_prenex_42 (_ bv0 32)) (not (= (_ bv0 1) (select |#valid| v_prenex_42))))))} assume true; {5829#(and (or (= main_~item~0.base main_~head~0.base) (forall ((v_prenex_37 (_ BitVec 32)) (v_prenex_36 (_ BitVec 32))) (or (not (= (select (store |#valid| v_prenex_36 (_ bv1 1)) v_prenex_37) (_ bv0 1))) (not (= (_ bv0 1) (select |#valid| v_prenex_36))) (= v_prenex_36 (_ bv0 32))))) (or (forall ((v_prenex_40 (_ BitVec 32)) (v_prenex_41 (_ BitVec 32))) (or (= v_prenex_40 (_ bv0 32)) (= v_prenex_40 main_~head~0.base) (not (= (_ bv0 1) (select |#valid| v_prenex_40))) (not (= (select (store |#valid| v_prenex_40 (_ bv1 1)) v_prenex_41) (_ bv0 1))))) (= main_~head~0.offset main_~item~0.offset)) (or (not (= (select |#valid| main_~item~0.base) (_ bv0 1))) (not (= (select (store |#valid| main_~item~0.base (_ bv1 1)) (_ bv0 32)) (_ bv0 1)))) (forall ((v_prenex_42 (_ BitVec 32))) (or (not (= (select (store |#valid| v_prenex_42 (_ bv1 1)) main_~head~0.base) (_ bv0 1))) (= v_prenex_42 (_ bv0 32)) (not (= (_ bv0 1) (select |#valid| v_prenex_42))))))} is VALID [2018-11-18 21:52:35,184 INFO L273 TraceCheckUtils]: 5: Hoare triple {5617#true} call #t~malloc0.base, #t~malloc0.offset := #Ultimate.alloc(8bv32);~head~0.base, ~head~0.offset := #t~malloc0.base, #t~malloc0.offset;call write~$Pointer$(0bv32, 0bv32, ~head~0.base, ~head~0.offset, 4bv32);call write~intINTTYPE4(0bv32, ~head~0.base, ~bvadd32(4bv32, ~head~0.offset), 4bv32);~item~0.base, ~item~0.offset := ~head~0.base, ~head~0.offset;~status~0 := 0bv32; {5829#(and (or (= main_~item~0.base main_~head~0.base) (forall ((v_prenex_37 (_ BitVec 32)) (v_prenex_36 (_ BitVec 32))) (or (not (= (select (store |#valid| v_prenex_36 (_ bv1 1)) v_prenex_37) (_ bv0 1))) (not (= (_ bv0 1) (select |#valid| v_prenex_36))) (= v_prenex_36 (_ bv0 32))))) (or (forall ((v_prenex_40 (_ BitVec 32)) (v_prenex_41 (_ BitVec 32))) (or (= v_prenex_40 (_ bv0 32)) (= v_prenex_40 main_~head~0.base) (not (= (_ bv0 1) (select |#valid| v_prenex_40))) (not (= (select (store |#valid| v_prenex_40 (_ bv1 1)) v_prenex_41) (_ bv0 1))))) (= main_~head~0.offset main_~item~0.offset)) (or (not (= (select |#valid| main_~item~0.base) (_ bv0 1))) (not (= (select (store |#valid| main_~item~0.base (_ bv1 1)) (_ bv0 32)) (_ bv0 1)))) (forall ((v_prenex_42 (_ BitVec 32))) (or (not (= (select (store |#valid| v_prenex_42 (_ bv1 1)) main_~head~0.base) (_ bv0 1))) (= v_prenex_42 (_ bv0 32)) (not (= (_ bv0 1) (select |#valid| v_prenex_42))))))} is VALID [2018-11-18 21:52:35,184 INFO L256 TraceCheckUtils]: 4: Hoare triple {5617#true} call #t~ret24 := main(); {5617#true} is VALID [2018-11-18 21:52:35,184 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {5617#true} {5617#true} #359#return; {5617#true} is VALID [2018-11-18 21:52:35,184 INFO L273 TraceCheckUtils]: 2: Hoare triple {5617#true} assume true; {5617#true} is VALID [2018-11-18 21:52:35,185 INFO L273 TraceCheckUtils]: 1: Hoare triple {5617#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1]; {5617#true} is VALID [2018-11-18 21:52:35,185 INFO L256 TraceCheckUtils]: 0: Hoare triple {5617#true} call ULTIMATE.init(); {5617#true} is VALID [2018-11-18 21:52:35,191 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 21:52:35,193 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 21:52:35,193 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2018-11-18 21:52:35,193 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 38 [2018-11-18 21:52:35,193 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 21:52:35,194 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states. [2018-11-18 21:52:35,387 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 69 edges. 69 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:52:35,388 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 21:52:35,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 21:52:35,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=52, Unknown=1, NotChecked=0, Total=72 [2018-11-18 21:52:35,388 INFO L87 Difference]: Start difference. First operand 138 states and 150 transitions. Second operand 9 states. [2018-11-18 21:52:38,201 WARN L180 SmtUtils]: Spent 2.06 s on a formula simplification that was a NOOP. DAG size: 45 [2018-11-18 21:52:42,491 WARN L180 SmtUtils]: Spent 1.39 s on a formula simplification that was a NOOP. DAG size: 48 [2018-11-18 21:52:47,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:52:47,718 INFO L93 Difference]: Finished difference Result 189 states and 205 transitions. [2018-11-18 21:52:47,719 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 21:52:47,719 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 38 [2018-11-18 21:52:47,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 21:52:47,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-11-18 21:52:47,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 168 transitions. [2018-11-18 21:52:47,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-11-18 21:52:47,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 168 transitions. [2018-11-18 21:52:47,725 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 10 states and 168 transitions. [2018-11-18 21:52:48,545 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 168 edges. 168 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:52:48,549 INFO L225 Difference]: With dead ends: 189 [2018-11-18 21:52:48,549 INFO L226 Difference]: Without dead ends: 187 [2018-11-18 21:52:48,549 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=45, Invalid=110, Unknown=1, NotChecked=0, Total=156 [2018-11-18 21:52:48,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2018-11-18 21:52:48,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 136. [2018-11-18 21:52:48,684 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 21:52:48,684 INFO L82 GeneralOperation]: Start isEquivalent. First operand 187 states. Second operand 136 states. [2018-11-18 21:52:48,684 INFO L74 IsIncluded]: Start isIncluded. First operand 187 states. Second operand 136 states. [2018-11-18 21:52:48,684 INFO L87 Difference]: Start difference. First operand 187 states. Second operand 136 states. [2018-11-18 21:52:48,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:52:48,689 INFO L93 Difference]: Finished difference Result 187 states and 202 transitions. [2018-11-18 21:52:48,689 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 202 transitions. [2018-11-18 21:52:48,690 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:52:48,690 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:52:48,690 INFO L74 IsIncluded]: Start isIncluded. First operand 136 states. Second operand 187 states. [2018-11-18 21:52:48,690 INFO L87 Difference]: Start difference. First operand 136 states. Second operand 187 states. [2018-11-18 21:52:48,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:52:48,695 INFO L93 Difference]: Finished difference Result 187 states and 202 transitions. [2018-11-18 21:52:48,695 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 202 transitions. [2018-11-18 21:52:48,695 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:52:48,696 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:52:48,696 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 21:52:48,696 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 21:52:48,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2018-11-18 21:52:48,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 148 transitions. [2018-11-18 21:52:48,699 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 148 transitions. Word has length 38 [2018-11-18 21:52:48,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 21:52:48,699 INFO L480 AbstractCegarLoop]: Abstraction has 136 states and 148 transitions. [2018-11-18 21:52:48,699 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 21:52:48,699 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 148 transitions. [2018-11-18 21:52:48,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-11-18 21:52:48,700 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 21:52:48,700 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 21:52:48,701 INFO L423 AbstractCegarLoop]: === Iteration 11 === [mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 21:52:48,701 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 21:52:48,701 INFO L82 PathProgramCache]: Analyzing trace with hash 1254692817, now seen corresponding path program 1 times [2018-11-18 21:52:48,702 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 21:52:48,702 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 12 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 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 21:52:48,731 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 21:52:48,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:52:48,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:52:48,831 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 21:52:48,865 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 6 treesize of output 5 [2018-11-18 21:52:48,867 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:48,880 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 21:52:48,881 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:15 [2018-11-18 21:52:48,885 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-11-18 21:52:48,957 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 21:52:48,973 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 21:52:48,974 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-18 21:52:48,975 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:49,232 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2018-11-18 21:52:49,243 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 21:52:49,245 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:49,337 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 20 [2018-11-18 21:52:49,365 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 21:52:49,366 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:49,389 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 21:52:49,409 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 21:52:49,480 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2018-11-18 21:52:49,487 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 21:52:49,488 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:49,521 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 24 [2018-11-18 21:52:49,530 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 12 treesize of output 15 [2018-11-18 21:52:49,531 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:49,543 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 21:52:49,554 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 21:52:49,586 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 21:52:49,586 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 3 variables, input treesize:77, output treesize:57 [2018-11-18 21:52:50,373 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-11-18 21:52:51,078 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 21:52:51,086 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 21:52:51,093 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 21:52:51,094 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2018-11-18 21:52:51,096 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:51,385 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 21:52:51,392 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 21:52:51,394 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 149 treesize of output 145 [2018-11-18 21:52:51,419 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 43 [2018-11-18 21:52:51,421 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:51,612 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 21:52:51,636 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 21:52:51,701 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 21:52:51,701 INFO L303 Elim1Store]: Index analysis took 117 ms [2018-11-18 21:52:51,702 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 130 [2018-11-18 21:52:51,716 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 22 treesize of output 20 [2018-11-18 21:52:51,718 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:51,820 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 21:52:51,880 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 21:52:51,987 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 21:52:52,012 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 21:52:52,013 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 67 [2018-11-18 21:52:52,037 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 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 26 treesize of output 23 [2018-11-18 21:52:52,038 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:52,076 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 21:52:52,078 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 21:52:52,104 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 66 [2018-11-18 21:52:52,111 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 21:52:52,112 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-18 21:52:52,134 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 21:52:52,154 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 21:52:52,189 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 21:52:52,190 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 4 variables, input treesize:176, output treesize:96 [2018-11-18 21:52:52,531 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 21:52:52,533 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:225) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.WrapperScript.checkSat(WrapperScript.java:116) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:61) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.EliminationTask.areDistinct(EliminationTask.java:106) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.validateEquivalence(PartialQuantifierElimination.java:381) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:294) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:286) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:232) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1427) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:630) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:205) ... 38 more [2018-11-18 21:52:52,539 INFO L168 Benchmark]: Toolchain (without parser) took 57755.65 ms. Allocated memory was 1.5 GB in the beginning and 2.6 GB in the end (delta: 1.1 GB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -608.1 MB). Peak memory consumption was 473.5 MB. Max. memory is 7.1 GB. [2018-11-18 21:52:52,540 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-18 21:52:52,540 INFO L168 Benchmark]: CACSL2BoogieTranslator took 725.98 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 714.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -761.7 MB). Peak memory consumption was 39.2 MB. Max. memory is 7.1 GB. [2018-11-18 21:52:52,540 INFO L168 Benchmark]: Boogie Preprocessor took 101.65 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-18 21:52:52,540 INFO L168 Benchmark]: RCFGBuilder took 1873.69 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 78.4 MB). Peak memory consumption was 78.4 MB. Max. memory is 7.1 GB. [2018-11-18 21:52:52,541 INFO L168 Benchmark]: TraceAbstraction took 55048.76 ms. Allocated memory was 2.2 GB in the beginning and 2.6 GB in the end (delta: 367.5 MB). Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 75.2 MB). Peak memory consumption was 442.8 MB. Max. memory is 7.1 GB. [2018-11-18 21:52:52,543 INFO L336 ainManager$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 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 725.98 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 714.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -761.7 MB). Peak memory consumption was 39.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 101.65 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 1873.69 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 78.4 MB). Peak memory consumption was 78.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 55048.76 ms. Allocated memory was 2.2 GB in the beginning and 2.6 GB in the end (delta: 367.5 MB). Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 75.2 MB). Peak memory consumption was 442.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. No stderr output. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. No stderr output.: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...