./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/memory-alloca/c.03-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 906a4fb5 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/memory-alloca/c.03-alloca-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ab87ef7cc863b18816ae397a50b6c6e9fb3e753d .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-906a4fb [2020-10-19 18:06:11,695 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:06:11,698 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:06:11,724 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:06:11,724 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:06:11,726 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:06:11,727 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:06:11,729 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:06:11,731 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:06:11,732 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:06:11,734 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:06:11,737 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:06:11,738 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:06:11,739 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:06:11,741 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:06:11,743 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:06:11,746 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:06:11,750 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:06:11,752 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:06:11,757 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:06:11,759 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:06:11,763 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:06:11,765 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:06:11,766 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:06:11,773 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:06:11,775 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:06:11,776 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:06:11,777 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:06:11,779 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:06:11,782 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:06:11,783 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:06:11,784 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:06:11,785 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:06:11,786 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:06:11,788 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:06:11,788 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:06:11,789 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:06:11,789 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:06:11,790 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:06:11,791 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:06:11,792 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:06:11,793 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-10-19 18:06:11,848 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:06:11,851 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:06:11,853 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:06:11,854 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:06:11,854 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:06:11,855 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:06:11,855 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 18:06:11,856 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:06:11,856 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:06:11,856 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 18:06:11,856 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:06:11,856 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-19 18:06:11,857 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-19 18:06:11,857 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-19 18:06:11,857 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 18:06:11,857 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-19 18:06:11,858 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 18:06:11,858 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:06:11,858 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:06:11,858 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:06:11,858 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 18:06:11,858 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 18:06:11,859 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 18:06:11,859 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:06:11,862 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 18:06:11,862 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 18:06:11,863 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 18:06:11,863 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:06:11,863 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ab87ef7cc863b18816ae397a50b6c6e9fb3e753d [2020-10-19 18:06:12,248 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:06:12,261 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:06:12,265 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:06:12,266 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:06:12,267 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:06:12,268 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memory-alloca/c.03-alloca-2.i [2020-10-19 18:06:12,345 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07cab89e7/1a13255024b742fc9c1ce01d099b71ba/FLAG7bf8bccef [2020-10-19 18:06:12,833 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:06:12,834 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memory-alloca/c.03-alloca-2.i [2020-10-19 18:06:12,848 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07cab89e7/1a13255024b742fc9c1ce01d099b71ba/FLAG7bf8bccef [2020-10-19 18:06:13,182 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07cab89e7/1a13255024b742fc9c1ce01d099b71ba [2020-10-19 18:06:13,186 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:06:13,192 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-19 18:06:13,193 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:06:13,193 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:06:13,197 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:06:13,198 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:06:13" (1/1) ... [2020-10-19 18:06:13,201 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48cb863f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:06:13, skipping insertion in model container [2020-10-19 18:06:13,201 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:06:13" (1/1) ... [2020-10-19 18:06:13,210 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:06:13,260 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:06:13,641 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:06:13,652 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 18:06:13,693 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:06:13,765 INFO L208 MainTranslator]: Completed translation [2020-10-19 18:06:13,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:06:13 WrapperNode [2020-10-19 18:06:13,766 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:06:13,767 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 18:06:13,768 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 18:06:13,768 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 18:06:13,782 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:06:13" (1/1) ... [2020-10-19 18:06:13,782 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:06:13" (1/1) ... [2020-10-19 18:06:13,797 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:06:13" (1/1) ... [2020-10-19 18:06:13,798 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:06:13" (1/1) ... [2020-10-19 18:06:13,810 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:06:13" (1/1) ... [2020-10-19 18:06:13,815 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:06:13" (1/1) ... [2020-10-19 18:06:13,818 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:06:13" (1/1) ... [2020-10-19 18:06:13,825 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 18:06:13,826 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 18:06:13,826 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 18:06:13,826 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 18:06:13,827 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:06:13" (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 [2020-10-19 18:06:13,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-19 18:06:13,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 18:06:13,906 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-19 18:06:13,907 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-19 18:06:13,907 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-10-19 18:06:13,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-10-19 18:06:13,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-10-19 18:06:13,908 INFO L138 BoogieDeclarations]: Found implementation of procedure test_fun [2020-10-19 18:06:13,908 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-19 18:06:13,909 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-19 18:06:13,909 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-19 18:06:13,910 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-19 18:06:13,910 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-19 18:06:13,910 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-19 18:06:13,910 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-19 18:06:13,910 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-19 18:06:13,911 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-19 18:06:13,911 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-19 18:06:13,912 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-19 18:06:13,912 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-19 18:06:13,912 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-19 18:06:13,912 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-19 18:06:13,912 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-19 18:06:13,913 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-19 18:06:13,913 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-19 18:06:13,913 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-19 18:06:13,913 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-19 18:06:13,913 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-10-19 18:06:13,914 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-10-19 18:06:13,914 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-10-19 18:06:13,914 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-19 18:06:13,914 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-19 18:06:13,915 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-19 18:06:13,915 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-19 18:06:13,915 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-19 18:06:13,915 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-19 18:06:13,915 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-19 18:06:13,915 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-19 18:06:13,915 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-19 18:06:13,916 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-19 18:06:13,916 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-19 18:06:13,916 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-19 18:06:13,916 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-19 18:06:13,916 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-19 18:06:13,916 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-19 18:06:13,916 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-19 18:06:13,916 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-19 18:06:13,917 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-19 18:06:13,917 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-19 18:06:13,917 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-19 18:06:13,917 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-19 18:06:13,917 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-19 18:06:13,917 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-19 18:06:13,917 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-19 18:06:13,918 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-19 18:06:13,918 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-19 18:06:13,918 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-19 18:06:13,918 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-19 18:06:13,918 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-19 18:06:13,918 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-19 18:06:13,918 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-19 18:06:13,919 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-19 18:06:13,919 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-19 18:06:13,919 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-19 18:06:13,919 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-19 18:06:13,919 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-19 18:06:13,919 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-19 18:06:13,919 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-19 18:06:13,919 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-19 18:06:13,920 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-19 18:06:13,920 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-19 18:06:13,920 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-19 18:06:13,920 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-19 18:06:13,920 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-19 18:06:13,921 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-19 18:06:13,921 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-19 18:06:13,921 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-19 18:06:13,921 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-19 18:06:13,922 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-19 18:06:13,922 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-19 18:06:13,922 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-19 18:06:13,922 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-19 18:06:13,922 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-19 18:06:13,923 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-19 18:06:13,923 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-19 18:06:13,923 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-19 18:06:13,923 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-19 18:06:13,924 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-19 18:06:13,924 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-19 18:06:13,924 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-19 18:06:13,924 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-19 18:06:13,924 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-19 18:06:13,925 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-19 18:06:13,925 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-19 18:06:13,925 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-19 18:06:13,925 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-19 18:06:13,925 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-19 18:06:13,925 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-19 18:06:13,925 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-19 18:06:13,925 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-19 18:06:13,926 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-19 18:06:13,926 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-19 18:06:13,926 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-19 18:06:13,926 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-19 18:06:13,926 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-19 18:06:13,926 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-19 18:06:13,926 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-19 18:06:13,926 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-19 18:06:13,926 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-19 18:06:13,927 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-19 18:06:13,927 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-19 18:06:13,927 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-19 18:06:13,927 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-19 18:06:13,927 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-19 18:06:13,927 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-19 18:06:13,927 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-19 18:06:13,928 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-19 18:06:13,928 INFO L130 BoogieDeclarations]: Found specification of procedure test_fun [2020-10-19 18:06:13,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 18:06:13,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-19 18:06:13,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-19 18:06:13,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-19 18:06:13,929 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-19 18:06:13,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-19 18:06:13,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 18:06:14,479 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 18:06:14,480 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-19 18:06:14,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:06:14 BoogieIcfgContainer [2020-10-19 18:06:14,482 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 18:06:14,484 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 18:06:14,484 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 18:06:14,488 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 18:06:14,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 06:06:13" (1/3) ... [2020-10-19 18:06:14,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f1304d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:06:14, skipping insertion in model container [2020-10-19 18:06:14,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:06:13" (2/3) ... [2020-10-19 18:06:14,490 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f1304d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:06:14, skipping insertion in model container [2020-10-19 18:06:14,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:06:14" (3/3) ... [2020-10-19 18:06:14,492 INFO L111 eAbstractionObserver]: Analyzing ICFG c.03-alloca-2.i [2020-10-19 18:06:14,504 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 18:06:14,513 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 31 error locations. [2020-10-19 18:06:14,527 INFO L253 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2020-10-19 18:06:14,546 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 18:06:14,547 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-19 18:06:14,547 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 18:06:14,547 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 18:06:14,547 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 18:06:14,548 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 18:06:14,548 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 18:06:14,548 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 18:06:14,566 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states. [2020-10-19 18:06:14,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-19 18:06:14,575 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:06:14,576 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:06:14,576 INFO L429 AbstractCegarLoop]: === Iteration 1 === [test_funErr25REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr24REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr28REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr26REQUIRES_VIOLATION, test_funErr27REQUIRES_VIOLATION, test_funErr20REQUIRES_VIOLATION, test_funErr18REQUIRES_VIOLATION, test_funErr19REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr22REQUIRES_VIOLATION, test_funErr23REQUIRES_VIOLATION, test_funErr21REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr14REQUIRES_VIOLATION, test_funErr15REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr17REQUIRES_VIOLATION, test_funErr16REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr29REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:06:14,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:06:14,582 INFO L82 PathProgramCache]: Analyzing trace with hash 743499951, now seen corresponding path program 1 times [2020-10-19 18:06:14,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:06:14,594 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909888355] [2020-10-19 18:06:14,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:06:14,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:06:14,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:06:14,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:06:14,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:06:14,868 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909888355] [2020-10-19 18:06:14,871 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:06:14,872 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 18:06:14,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517261284] [2020-10-19 18:06:14,879 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 18:06:14,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:06:14,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:06:14,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:06:14,898 INFO L87 Difference]: Start difference. First operand 67 states. Second operand 4 states. [2020-10-19 18:06:15,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:06:15,102 INFO L93 Difference]: Finished difference Result 62 states and 63 transitions. [2020-10-19 18:06:15,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 18:06:15,105 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-19 18:06:15,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:06:15,117 INFO L225 Difference]: With dead ends: 62 [2020-10-19 18:06:15,118 INFO L226 Difference]: Without dead ends: 59 [2020-10-19 18:06:15,120 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:06:15,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-10-19 18:06:15,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-10-19 18:06:15,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-10-19 18:06:15,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 60 transitions. [2020-10-19 18:06:15,169 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 60 transitions. Word has length 9 [2020-10-19 18:06:15,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:06:15,170 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 60 transitions. [2020-10-19 18:06:15,170 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 18:06:15,170 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 60 transitions. [2020-10-19 18:06:15,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-19 18:06:15,171 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:06:15,171 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:06:15,172 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 18:06:15,172 INFO L429 AbstractCegarLoop]: === Iteration 2 === [test_funErr25REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr24REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr28REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr26REQUIRES_VIOLATION, test_funErr27REQUIRES_VIOLATION, test_funErr20REQUIRES_VIOLATION, test_funErr18REQUIRES_VIOLATION, test_funErr19REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr22REQUIRES_VIOLATION, test_funErr23REQUIRES_VIOLATION, test_funErr21REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr14REQUIRES_VIOLATION, test_funErr15REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr17REQUIRES_VIOLATION, test_funErr16REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr29REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:06:15,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:06:15,173 INFO L82 PathProgramCache]: Analyzing trace with hash 743499952, now seen corresponding path program 1 times [2020-10-19 18:06:15,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:06:15,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743440569] [2020-10-19 18:06:15,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:06:15,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:06:15,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:06:15,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:06:15,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:06:15,289 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743440569] [2020-10-19 18:06:15,289 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:06:15,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 18:06:15,290 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585610703] [2020-10-19 18:06:15,291 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 18:06:15,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:06:15,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:06:15,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:06:15,293 INFO L87 Difference]: Start difference. First operand 59 states and 60 transitions. Second operand 4 states. [2020-10-19 18:06:15,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:06:15,420 INFO L93 Difference]: Finished difference Result 54 states and 55 transitions. [2020-10-19 18:06:15,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 18:06:15,421 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-19 18:06:15,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:06:15,422 INFO L225 Difference]: With dead ends: 54 [2020-10-19 18:06:15,422 INFO L226 Difference]: Without dead ends: 54 [2020-10-19 18:06:15,423 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:06:15,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-19 18:06:15,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-10-19 18:06:15,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-19 18:06:15,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 55 transitions. [2020-10-19 18:06:15,431 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 55 transitions. Word has length 9 [2020-10-19 18:06:15,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:06:15,432 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 55 transitions. [2020-10-19 18:06:15,432 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 18:06:15,432 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 55 transitions. [2020-10-19 18:06:15,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-19 18:06:15,433 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:06:15,434 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:06:15,434 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-19 18:06:15,434 INFO L429 AbstractCegarLoop]: === Iteration 3 === [test_funErr25REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr24REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr28REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr26REQUIRES_VIOLATION, test_funErr27REQUIRES_VIOLATION, test_funErr20REQUIRES_VIOLATION, test_funErr18REQUIRES_VIOLATION, test_funErr19REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr22REQUIRES_VIOLATION, test_funErr23REQUIRES_VIOLATION, test_funErr21REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr14REQUIRES_VIOLATION, test_funErr15REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr17REQUIRES_VIOLATION, test_funErr16REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr29REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:06:15,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:06:15,435 INFO L82 PathProgramCache]: Analyzing trace with hash 1573661992, now seen corresponding path program 1 times [2020-10-19 18:06:15,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:06:15,436 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425091105] [2020-10-19 18:06:15,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:06:15,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:06:15,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:06:15,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:06:15,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:06:15,501 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425091105] [2020-10-19 18:06:15,502 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:06:15,502 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 18:06:15,502 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443215945] [2020-10-19 18:06:15,503 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 18:06:15,503 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:06:15,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:06:15,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:06:15,504 INFO L87 Difference]: Start difference. First operand 54 states and 55 transitions. Second operand 4 states. [2020-10-19 18:06:15,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:06:15,627 INFO L93 Difference]: Finished difference Result 52 states and 53 transitions. [2020-10-19 18:06:15,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 18:06:15,628 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-19 18:06:15,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:06:15,630 INFO L225 Difference]: With dead ends: 52 [2020-10-19 18:06:15,630 INFO L226 Difference]: Without dead ends: 52 [2020-10-19 18:06:15,630 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:06:15,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-19 18:06:15,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-10-19 18:06:15,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-19 18:06:15,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 53 transitions. [2020-10-19 18:06:15,638 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 53 transitions. Word has length 10 [2020-10-19 18:06:15,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:06:15,638 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 53 transitions. [2020-10-19 18:06:15,639 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 18:06:15,639 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 53 transitions. [2020-10-19 18:06:15,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-19 18:06:15,640 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:06:15,640 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:06:15,641 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-19 18:06:15,641 INFO L429 AbstractCegarLoop]: === Iteration 4 === [test_funErr25REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr24REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr28REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr26REQUIRES_VIOLATION, test_funErr27REQUIRES_VIOLATION, test_funErr20REQUIRES_VIOLATION, test_funErr18REQUIRES_VIOLATION, test_funErr19REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr22REQUIRES_VIOLATION, test_funErr23REQUIRES_VIOLATION, test_funErr21REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr14REQUIRES_VIOLATION, test_funErr15REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr17REQUIRES_VIOLATION, test_funErr16REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr29REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:06:15,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:06:15,642 INFO L82 PathProgramCache]: Analyzing trace with hash 1573661993, now seen corresponding path program 1 times [2020-10-19 18:06:15,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:06:15,642 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073988113] [2020-10-19 18:06:15,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:06:15,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:06:15,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:06:15,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:06:15,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:06:15,718 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073988113] [2020-10-19 18:06:15,718 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:06:15,718 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 18:06:15,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333881403] [2020-10-19 18:06:15,719 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 18:06:15,720 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:06:15,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:06:15,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:06:15,721 INFO L87 Difference]: Start difference. First operand 52 states and 53 transitions. Second operand 4 states. [2020-10-19 18:06:15,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:06:15,839 INFO L93 Difference]: Finished difference Result 50 states and 51 transitions. [2020-10-19 18:06:15,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 18:06:15,840 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-19 18:06:15,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:06:15,841 INFO L225 Difference]: With dead ends: 50 [2020-10-19 18:06:15,841 INFO L226 Difference]: Without dead ends: 50 [2020-10-19 18:06:15,842 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:06:15,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-10-19 18:06:15,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-10-19 18:06:15,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-10-19 18:06:15,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 51 transitions. [2020-10-19 18:06:15,847 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 51 transitions. Word has length 10 [2020-10-19 18:06:15,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:06:15,848 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 51 transitions. [2020-10-19 18:06:15,848 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 18:06:15,848 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 51 transitions. [2020-10-19 18:06:15,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-19 18:06:15,849 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:06:15,849 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:06:15,849 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-19 18:06:15,850 INFO L429 AbstractCegarLoop]: === Iteration 5 === [test_funErr25REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr24REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr28REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr26REQUIRES_VIOLATION, test_funErr27REQUIRES_VIOLATION, test_funErr20REQUIRES_VIOLATION, test_funErr18REQUIRES_VIOLATION, test_funErr19REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr22REQUIRES_VIOLATION, test_funErr23REQUIRES_VIOLATION, test_funErr21REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr14REQUIRES_VIOLATION, test_funErr15REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr17REQUIRES_VIOLATION, test_funErr16REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr29REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:06:15,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:06:15,850 INFO L82 PathProgramCache]: Analyzing trace with hash 1538881490, now seen corresponding path program 1 times [2020-10-19 18:06:15,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:06:15,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283852876] [2020-10-19 18:06:15,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:06:15,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:06:15,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:06:15,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:06:15,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:06:15,918 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283852876] [2020-10-19 18:06:15,919 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:06:15,919 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 18:06:15,919 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876575667] [2020-10-19 18:06:15,920 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 18:06:15,920 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:06:15,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:06:15,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:06:15,921 INFO L87 Difference]: Start difference. First operand 50 states and 51 transitions. Second operand 4 states. [2020-10-19 18:06:16,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:06:16,058 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions. [2020-10-19 18:06:16,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 18:06:16,059 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-19 18:06:16,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:06:16,060 INFO L225 Difference]: With dead ends: 46 [2020-10-19 18:06:16,060 INFO L226 Difference]: Without dead ends: 46 [2020-10-19 18:06:16,061 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:06:16,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-10-19 18:06:16,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-10-19 18:06:16,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-19 18:06:16,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 47 transitions. [2020-10-19 18:06:16,068 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 47 transitions. Word has length 11 [2020-10-19 18:06:16,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:06:16,068 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 47 transitions. [2020-10-19 18:06:16,069 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 18:06:16,069 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 47 transitions. [2020-10-19 18:06:16,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-19 18:06:16,070 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:06:16,070 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:06:16,070 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-19 18:06:16,071 INFO L429 AbstractCegarLoop]: === Iteration 6 === [test_funErr25REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr24REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr28REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr26REQUIRES_VIOLATION, test_funErr27REQUIRES_VIOLATION, test_funErr20REQUIRES_VIOLATION, test_funErr18REQUIRES_VIOLATION, test_funErr19REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr22REQUIRES_VIOLATION, test_funErr23REQUIRES_VIOLATION, test_funErr21REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr14REQUIRES_VIOLATION, test_funErr15REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr17REQUIRES_VIOLATION, test_funErr16REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr29REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:06:16,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:06:16,071 INFO L82 PathProgramCache]: Analyzing trace with hash 1538881491, now seen corresponding path program 1 times [2020-10-19 18:06:16,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:06:16,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014441066] [2020-10-19 18:06:16,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:06:16,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:06:16,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:06:16,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:06:16,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:06:16,198 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014441066] [2020-10-19 18:06:16,198 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:06:16,198 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 18:06:16,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492300149] [2020-10-19 18:06:16,199 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 18:06:16,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:06:16,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:06:16,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:06:16,201 INFO L87 Difference]: Start difference. First operand 46 states and 47 transitions. Second operand 4 states. [2020-10-19 18:06:16,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:06:16,307 INFO L93 Difference]: Finished difference Result 42 states and 43 transitions. [2020-10-19 18:06:16,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 18:06:16,308 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-19 18:06:16,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:06:16,309 INFO L225 Difference]: With dead ends: 42 [2020-10-19 18:06:16,309 INFO L226 Difference]: Without dead ends: 42 [2020-10-19 18:06:16,310 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:06:16,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-10-19 18:06:16,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-10-19 18:06:16,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-19 18:06:16,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2020-10-19 18:06:16,317 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 11 [2020-10-19 18:06:16,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:06:16,317 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions. [2020-10-19 18:06:16,317 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 18:06:16,318 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2020-10-19 18:06:16,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-19 18:06:16,318 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:06:16,318 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:06:16,319 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-19 18:06:16,322 INFO L429 AbstractCegarLoop]: === Iteration 7 === [test_funErr25REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr24REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr28REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr26REQUIRES_VIOLATION, test_funErr27REQUIRES_VIOLATION, test_funErr20REQUIRES_VIOLATION, test_funErr18REQUIRES_VIOLATION, test_funErr19REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr22REQUIRES_VIOLATION, test_funErr23REQUIRES_VIOLATION, test_funErr21REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr14REQUIRES_VIOLATION, test_funErr15REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr17REQUIRES_VIOLATION, test_funErr16REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr29REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:06:16,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:06:16,323 INFO L82 PathProgramCache]: Analyzing trace with hash 460685931, now seen corresponding path program 1 times [2020-10-19 18:06:16,323 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:06:16,324 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133907689] [2020-10-19 18:06:16,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:06:16,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:06:16,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:06:16,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:06:16,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:06:16,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133907689] [2020-10-19 18:06:16,393 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:06:16,394 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 18:06:16,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025713876] [2020-10-19 18:06:16,396 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 18:06:16,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:06:16,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:06:16,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:06:16,399 INFO L87 Difference]: Start difference. First operand 42 states and 43 transitions. Second operand 4 states. [2020-10-19 18:06:16,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:06:16,479 INFO L93 Difference]: Finished difference Result 38 states and 39 transitions. [2020-10-19 18:06:16,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 18:06:16,479 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-19 18:06:16,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:06:16,480 INFO L225 Difference]: With dead ends: 38 [2020-10-19 18:06:16,480 INFO L226 Difference]: Without dead ends: 38 [2020-10-19 18:06:16,481 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:06:16,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-19 18:06:16,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-10-19 18:06:16,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-19 18:06:16,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2020-10-19 18:06:16,485 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 12 [2020-10-19 18:06:16,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:06:16,485 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2020-10-19 18:06:16,485 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 18:06:16,486 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2020-10-19 18:06:16,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-19 18:06:16,486 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:06:16,486 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:06:16,487 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-19 18:06:16,487 INFO L429 AbstractCegarLoop]: === Iteration 8 === [test_funErr25REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr24REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr28REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr26REQUIRES_VIOLATION, test_funErr27REQUIRES_VIOLATION, test_funErr20REQUIRES_VIOLATION, test_funErr18REQUIRES_VIOLATION, test_funErr19REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr22REQUIRES_VIOLATION, test_funErr23REQUIRES_VIOLATION, test_funErr21REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr14REQUIRES_VIOLATION, test_funErr15REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr17REQUIRES_VIOLATION, test_funErr16REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr29REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:06:16,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:06:16,487 INFO L82 PathProgramCache]: Analyzing trace with hash 460685932, now seen corresponding path program 1 times [2020-10-19 18:06:16,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:06:16,488 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009939449] [2020-10-19 18:06:16,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:06:16,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:06:16,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:06:16,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:06:16,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:06:16,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009939449] [2020-10-19 18:06:16,533 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:06:16,533 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 18:06:16,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446183299] [2020-10-19 18:06:16,534 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 18:06:16,534 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:06:16,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:06:16,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:06:16,535 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand 4 states. [2020-10-19 18:06:16,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:06:16,602 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2020-10-19 18:06:16,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 18:06:16,603 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-19 18:06:16,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:06:16,603 INFO L225 Difference]: With dead ends: 34 [2020-10-19 18:06:16,604 INFO L226 Difference]: Without dead ends: 34 [2020-10-19 18:06:16,604 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:06:16,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-10-19 18:06:16,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-10-19 18:06:16,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-10-19 18:06:16,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2020-10-19 18:06:16,607 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 12 [2020-10-19 18:06:16,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:06:16,608 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2020-10-19 18:06:16,608 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 18:06:16,608 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2020-10-19 18:06:16,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-19 18:06:16,609 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:06:16,609 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:06:16,609 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-19 18:06:16,609 INFO L429 AbstractCegarLoop]: === Iteration 9 === [test_funErr25REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr24REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr28REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr26REQUIRES_VIOLATION, test_funErr27REQUIRES_VIOLATION, test_funErr20REQUIRES_VIOLATION, test_funErr18REQUIRES_VIOLATION, test_funErr19REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr22REQUIRES_VIOLATION, test_funErr23REQUIRES_VIOLATION, test_funErr21REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr14REQUIRES_VIOLATION, test_funErr15REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr17REQUIRES_VIOLATION, test_funErr16REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr29REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:06:16,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:06:16,610 INFO L82 PathProgramCache]: Analyzing trace with hash 1533919015, now seen corresponding path program 1 times [2020-10-19 18:06:16,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:06:16,610 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933582549] [2020-10-19 18:06:16,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:06:16,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:06:16,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:06:16,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:06:16,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-19 18:06:16,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:06:16,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:06:16,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933582549] [2020-10-19 18:06:16,964 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:06:16,964 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-19 18:06:16,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4587602] [2020-10-19 18:06:16,970 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-19 18:06:16,970 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:06:16,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-19 18:06:16,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-19 18:06:16,973 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand 6 states. [2020-10-19 18:06:17,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:06:17,118 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2020-10-19 18:06:17,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 18:06:17,119 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2020-10-19 18:06:17,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:06:17,120 INFO L225 Difference]: With dead ends: 33 [2020-10-19 18:06:17,120 INFO L226 Difference]: Without dead ends: 0 [2020-10-19 18:06:17,120 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-19 18:06:17,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-19 18:06:17,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-19 18:06:17,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-19 18:06:17,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-19 18:06:17,123 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-10-19 18:06:17,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:06:17,124 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:06:17,124 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-19 18:06:17,124 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-19 18:06:17,124 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-19 18:06:17,124 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-19 18:06:17,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 06:06:17 BoogieIcfgContainer [2020-10-19 18:06:17,137 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 18:06:17,137 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:06:17,138 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:06:17,138 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:06:17,139 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:06:14" (3/4) ... [2020-10-19 18:06:17,144 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-19 18:06:17,166 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2020-10-19 18:06:17,170 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_32 [2020-10-19 18:06:17,170 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure test_fun [2020-10-19 18:06:17,171 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_64 [2020-10-19 18:06:17,171 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint16_identity [2020-10-19 18:06:17,171 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint64_identity [2020-10-19 18:06:17,172 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2020-10-19 18:06:17,172 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint32_identity [2020-10-19 18:06:17,187 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-10-19 18:06:17,188 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-10-19 18:06:17,188 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-19 18:06:17,188 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 18:06:17,250 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 18:06:17,250 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:06:17,253 INFO L168 Benchmark]: Toolchain (without parser) took 4064.82 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 75.0 MB). Free memory was 960.0 MB in the beginning and 740.6 MB in the end (delta: 219.3 MB). Peak memory consumption was 294.3 MB. Max. memory is 11.5 GB. [2020-10-19 18:06:17,253 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:06:17,254 INFO L168 Benchmark]: CACSL2BoogieTranslator took 573.77 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 75.0 MB). Free memory was 954.6 MB in the beginning and 1.0 GB in the end (delta: -94.4 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2020-10-19 18:06:17,256 INFO L168 Benchmark]: Boogie Preprocessor took 57.73 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2020-10-19 18:06:17,257 INFO L168 Benchmark]: RCFGBuilder took 656.95 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 994.4 MB in the end (delta: 47.7 MB). Peak memory consumption was 47.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:06:17,258 INFO L168 Benchmark]: TraceAbstraction took 2653.27 ms. Allocated memory is still 1.1 GB. Free memory was 994.4 MB in the beginning and 747.6 MB in the end (delta: 246.7 MB). Peak memory consumption was 246.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:06:17,260 INFO L168 Benchmark]: Witness Printer took 112.75 ms. Allocated memory is still 1.1 GB. Free memory was 747.6 MB in the beginning and 740.6 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2020-10-19 18:06:17,265 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 573.77 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 75.0 MB). Free memory was 954.6 MB in the beginning and 1.0 GB in the end (delta: -94.4 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 57.73 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 656.95 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 994.4 MB in the end (delta: 47.7 MB). Peak memory consumption was 47.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2653.27 ms. Allocated memory is still 1.1 GB. Free memory was 994.4 MB in the beginning and 747.6 MB in the end (delta: 246.7 MB). Peak memory consumption was 246.7 MB. Max. memory is 11.5 GB. * Witness Printer took 112.75 ms. Allocated memory is still 1.1 GB. Free memory was 747.6 MB in the beginning and 740.6 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 528]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 520]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 519]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 519]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 528]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 521]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 521]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 530]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 520]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 528]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 528]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 526]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 524]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 524]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 518]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 526]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 526]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 526]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 518]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 523]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 523]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 523]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 524]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 524]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 522]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 530]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 522]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 523]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 522]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 522]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 532]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 31 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 82 locations, 31 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.5s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 202 SDtfs, 301 SDslu, 95 SDs, 0 SdLazy, 660 SolverSat, 45 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=67occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 15676 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...