./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -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/list-ext-properties/test-0158_1-2.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 8fdeb5a608a809e67439a428636d313b7ceb3d25 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -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/list-ext-properties/test-0158_1-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.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 8fdeb5a608a809e67439a428636d313b7ceb3d25 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 05:58:31,793 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 05:58:31,796 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 05:58:31,840 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 05:58:31,841 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 05:58:31,854 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 05:58:31,856 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 05:58:31,859 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 05:58:31,862 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 05:58:31,863 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 05:58:31,864 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 05:58:31,865 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 05:58:31,865 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 05:58:31,866 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 05:58:31,867 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 05:58:31,869 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 05:58:31,870 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 05:58:31,871 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 05:58:31,872 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 05:58:31,874 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 05:58:31,876 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 05:58:31,877 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 05:58:31,878 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 05:58:31,879 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 05:58:31,890 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 05:58:31,890 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 05:58:31,891 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 05:58:31,892 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 05:58:31,892 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 05:58:31,893 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 05:58:31,894 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 05:58:31,894 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 05:58:31,895 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 05:58:31,896 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 05:58:31,897 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 05:58:31,897 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 05:58:31,898 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 05:58:31,898 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 05:58:31,899 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 05:58:31,900 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 05:58:31,900 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 05:58:31,901 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-10-20 05:58:31,923 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 05:58:31,924 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 05:58:31,925 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 05:58:31,925 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 05:58:31,926 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 05:58:31,926 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 05:58:31,926 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 05:58:31,926 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 05:58:31,927 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 05:58:31,927 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 05:58:31,927 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 05:58:31,927 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-20 05:58:31,928 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-20 05:58:31,928 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-20 05:58:31,928 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 05:58:31,928 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-20 05:58:31,929 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 05:58:31,929 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 05:58:31,929 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 05:58:31,930 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 05:58:31,930 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 05:58:31,930 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 05:58:31,930 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 05:58:31,931 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 05:58:31,931 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 05:58:31,931 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 05:58:31,932 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 05:58:31,932 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 05:58:31,932 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 -> 8fdeb5a608a809e67439a428636d313b7ceb3d25 [2020-10-20 05:58:32,138 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 05:58:32,152 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 05:58:32,157 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 05:58:32,161 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 05:58:32,161 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 05:58:32,162 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2020-10-20 05:58:32,238 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/689179e84/b7283d22ae9c481c91773ca35f40d988/FLAGdfbd0d312 [2020-10-20 05:58:32,770 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 05:58:32,771 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2020-10-20 05:58:32,785 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/689179e84/b7283d22ae9c481c91773ca35f40d988/FLAGdfbd0d312 [2020-10-20 05:58:33,062 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/689179e84/b7283d22ae9c481c91773ca35f40d988 [2020-10-20 05:58:33,066 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 05:58:33,072 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-20 05:58:33,074 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 05:58:33,074 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 05:58:33,078 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 05:58:33,079 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:58:33" (1/1) ... [2020-10-20 05:58:33,082 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79c6109c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:58:33, skipping insertion in model container [2020-10-20 05:58:33,083 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:58:33" (1/1) ... [2020-10-20 05:58:33,091 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 05:58:33,148 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 05:58:33,534 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 05:58:33,546 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 05:58:33,591 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 05:58:33,662 INFO L208 MainTranslator]: Completed translation [2020-10-20 05:58:33,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:58:33 WrapperNode [2020-10-20 05:58:33,663 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 05:58:33,664 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 05:58:33,664 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 05:58:33,664 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 05:58:33,679 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:58:33" (1/1) ... [2020-10-20 05:58:33,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:58:33" (1/1) ... [2020-10-20 05:58:33,696 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:58:33" (1/1) ... [2020-10-20 05:58:33,696 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:58:33" (1/1) ... [2020-10-20 05:58:33,714 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:58:33" (1/1) ... [2020-10-20 05:58:33,716 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:58:33" (1/1) ... [2020-10-20 05:58:33,719 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:58:33" (1/1) ... [2020-10-20 05:58:33,725 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 05:58:33,726 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 05:58:33,726 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 05:58:33,726 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 05:58:33,730 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:58:33" (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 [2020-10-20 05:58:33,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-20 05:58:33,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 05:58:33,802 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-20 05:58:33,802 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-20 05:58:33,803 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-20 05:58:33,804 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-10-20 05:58:33,804 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-10-20 05:58:33,804 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-10-20 05:58:33,804 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-20 05:58:33,805 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-20 05:58:33,806 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-20 05:58:33,806 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-20 05:58:33,806 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-20 05:58:33,806 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-20 05:58:33,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 05:58:33,807 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-20 05:58:33,809 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-20 05:58:33,809 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-20 05:58:33,809 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-20 05:58:33,809 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-20 05:58:33,810 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-20 05:58:33,810 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-20 05:58:33,810 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-20 05:58:33,810 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-20 05:58:33,810 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-20 05:58:33,811 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-20 05:58:33,811 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-20 05:58:33,811 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-20 05:58:33,811 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-20 05:58:33,812 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-20 05:58:33,812 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-20 05:58:33,812 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-20 05:58:33,812 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-20 05:58:33,812 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-10-20 05:58:33,813 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-10-20 05:58:33,813 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-10-20 05:58:33,813 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-20 05:58:33,813 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-20 05:58:33,813 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-20 05:58:33,814 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-20 05:58:33,814 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-20 05:58:33,814 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-20 05:58:33,814 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-20 05:58:33,814 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-20 05:58:33,815 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-20 05:58:33,815 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-20 05:58:33,815 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-20 05:58:33,815 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-20 05:58:33,815 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-20 05:58:33,816 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-20 05:58:33,816 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-20 05:58:33,816 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-20 05:58:33,816 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-20 05:58:33,816 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-20 05:58:33,817 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-20 05:58:33,817 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-20 05:58:33,817 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-20 05:58:33,818 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-20 05:58:33,818 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-20 05:58:33,818 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-20 05:58:33,818 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-20 05:58:33,818 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-20 05:58:33,819 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-20 05:58:33,819 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-20 05:58:33,819 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-20 05:58:33,819 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-20 05:58:33,820 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-20 05:58:33,820 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-20 05:58:33,821 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-20 05:58:33,821 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-20 05:58:33,821 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-20 05:58:33,821 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-20 05:58:33,822 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-20 05:58:33,822 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-20 05:58:33,823 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-20 05:58:33,823 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-20 05:58:33,824 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-20 05:58:33,824 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-20 05:58:33,824 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-20 05:58:33,825 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-20 05:58:33,825 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-20 05:58:33,825 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-20 05:58:33,826 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-20 05:58:33,826 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-20 05:58:33,826 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-20 05:58:33,827 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-20 05:58:33,827 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-20 05:58:33,827 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-20 05:58:33,827 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-20 05:58:33,827 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-20 05:58:33,828 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-20 05:58:33,828 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-20 05:58:33,828 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-20 05:58:33,828 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-20 05:58:33,828 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-20 05:58:33,828 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-20 05:58:33,829 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-20 05:58:33,829 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-20 05:58:33,829 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-20 05:58:33,829 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-20 05:58:33,829 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-20 05:58:33,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-20 05:58:33,830 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-20 05:58:33,830 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-20 05:58:33,830 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-20 05:58:33,830 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-20 05:58:33,831 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-20 05:58:33,831 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-20 05:58:33,831 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-20 05:58:33,831 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-20 05:58:33,831 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-20 05:58:33,832 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-20 05:58:33,832 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-20 05:58:33,832 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-20 05:58:33,832 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-20 05:58:33,832 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-20 05:58:33,833 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-20 05:58:33,833 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-20 05:58:33,833 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-20 05:58:33,834 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-20 05:58:33,834 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-20 05:58:33,834 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-20 05:58:33,834 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-20 05:58:33,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-20 05:58:33,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-20 05:58:33,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 05:58:33,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 05:58:33,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 05:58:33,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-20 05:58:33,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 05:58:33,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 05:58:33,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-20 05:58:34,355 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 05:58:34,356 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-20 05:58:34,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:58:34 BoogieIcfgContainer [2020-10-20 05:58:34,358 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 05:58:34,359 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 05:58:34,359 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 05:58:34,362 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 05:58:34,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 05:58:33" (1/3) ... [2020-10-20 05:58:34,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40600d06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:58:34, skipping insertion in model container [2020-10-20 05:58:34,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:58:33" (2/3) ... [2020-10-20 05:58:34,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40600d06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:58:34, skipping insertion in model container [2020-10-20 05:58:34,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:58:34" (3/3) ... [2020-10-20 05:58:34,366 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0158_1-2.i [2020-10-20 05:58:34,378 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 05:58:34,386 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2020-10-20 05:58:34,401 INFO L253 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2020-10-20 05:58:34,423 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 05:58:34,424 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-20 05:58:34,424 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 05:58:34,424 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 05:58:34,425 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 05:58:34,425 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 05:58:34,425 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 05:58:34,425 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 05:58:34,441 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-10-20 05:58:34,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-20 05:58:34,450 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:58:34,451 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:58:34,452 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2020-10-20 05:58:34,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:58:34,458 INFO L82 PathProgramCache]: Analyzing trace with hash 349376891, now seen corresponding path program 1 times [2020-10-20 05:58:34,468 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 05:58:34,469 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900993137] [2020-10-20 05:58:34,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 05:58:34,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:58:34,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 05:58:34,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:58:34,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:58:34,728 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900993137] [2020-10-20 05:58:34,729 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:58:34,729 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 05:58:34,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213628699] [2020-10-20 05:58:34,735 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 05:58:34,736 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 05:58:34,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 05:58:34,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 05:58:34,754 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 4 states. [2020-10-20 05:58:34,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:58:34,863 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2020-10-20 05:58:34,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 05:58:34,865 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-20 05:58:34,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:58:34,875 INFO L225 Difference]: With dead ends: 25 [2020-10-20 05:58:34,875 INFO L226 Difference]: Without dead ends: 22 [2020-10-20 05:58:34,877 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 [2020-10-20 05:58:34,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-10-20 05:58:34,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-10-20 05:58:34,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-20 05:58:34,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2020-10-20 05:58:34,914 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 7 [2020-10-20 05:58:34,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:58:34,915 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2020-10-20 05:58:34,915 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 05:58:34,915 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2020-10-20 05:58:34,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-20 05:58:34,915 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:58:34,915 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:58:34,916 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 05:58:34,916 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2020-10-20 05:58:34,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:58:34,916 INFO L82 PathProgramCache]: Analyzing trace with hash 349376892, now seen corresponding path program 1 times [2020-10-20 05:58:34,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 05:58:34,917 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719553959] [2020-10-20 05:58:34,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 05:58:34,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:58:35,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 05:58:35,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:58:35,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:58:35,015 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719553959] [2020-10-20 05:58:35,015 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:58:35,015 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 05:58:35,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259265811] [2020-10-20 05:58:35,019 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 05:58:35,019 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 05:58:35,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 05:58:35,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 05:58:35,020 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 4 states. [2020-10-20 05:58:35,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:58:35,070 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2020-10-20 05:58:35,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 05:58:35,071 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-20 05:58:35,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:58:35,071 INFO L225 Difference]: With dead ends: 17 [2020-10-20 05:58:35,072 INFO L226 Difference]: Without dead ends: 17 [2020-10-20 05:58:35,072 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 [2020-10-20 05:58:35,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-10-20 05:58:35,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-10-20 05:58:35,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-10-20 05:58:35,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2020-10-20 05:58:35,076 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 7 [2020-10-20 05:58:35,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:58:35,076 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2020-10-20 05:58:35,076 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 05:58:35,076 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2020-10-20 05:58:35,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-20 05:58:35,077 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:58:35,077 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:58:35,078 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 05:58:35,078 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2020-10-20 05:58:35,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:58:35,078 INFO L82 PathProgramCache]: Analyzing trace with hash 1583269800, now seen corresponding path program 1 times [2020-10-20 05:58:35,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 05:58:35,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731810942] [2020-10-20 05:58:35,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 05:58:35,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:58:35,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 05:58:35,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:58:35,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:58:35,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731810942] [2020-10-20 05:58:35,252 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:58:35,252 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 05:58:35,253 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379760985] [2020-10-20 05:58:35,253 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 05:58:35,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 05:58:35,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 05:58:35,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 05:58:35,255 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 5 states. [2020-10-20 05:58:35,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:58:35,347 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2020-10-20 05:58:35,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 05:58:35,348 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-20 05:58:35,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:58:35,349 INFO L225 Difference]: With dead ends: 21 [2020-10-20 05:58:35,349 INFO L226 Difference]: Without dead ends: 21 [2020-10-20 05:58:35,349 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-20 05:58:35,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-10-20 05:58:35,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2020-10-20 05:58:35,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-10-20 05:58:35,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2020-10-20 05:58:35,356 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 14 [2020-10-20 05:58:35,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:58:35,357 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2020-10-20 05:58:35,357 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 05:58:35,357 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2020-10-20 05:58:35,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-20 05:58:35,358 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:58:35,358 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:58:35,359 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 05:58:35,359 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2020-10-20 05:58:35,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:58:35,360 INFO L82 PathProgramCache]: Analyzing trace with hash 1731033160, now seen corresponding path program 1 times [2020-10-20 05:58:35,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 05:58:35,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259238292] [2020-10-20 05:58:35,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 05:58:35,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 05:58:35,382 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 05:58:35,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 05:58:35,401 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 05:58:35,460 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 05:58:35,460 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 05:58:35,461 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 05:58:35,476 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2020-10-20 05:58:35,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 05:58:35 BoogieIcfgContainer [2020-10-20 05:58:35,490 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 05:58:35,490 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 05:58:35,490 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 05:58:35,490 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 05:58:35,491 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:58:34" (3/4) ... [2020-10-20 05:58:35,495 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 05:58:35,495 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 05:58:35,498 INFO L168 Benchmark]: Toolchain (without parser) took 2429.38 ms. Allocated memory was 37.2 MB in the beginning and 57.1 MB in the end (delta: 19.9 MB). Free memory was 18.1 MB in the beginning and 34.5 MB in the end (delta: -16.4 MB). Peak memory consumption was 3.5 MB. Max. memory is 14.3 GB. [2020-10-20 05:58:35,499 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 34.1 MB. Free memory was 10.7 MB in the beginning and 10.7 MB in the end (delta: 47.5 kB). Peak memory consumption was 47.5 kB. Max. memory is 14.3 GB. [2020-10-20 05:58:35,500 INFO L168 Benchmark]: CACSL2BoogieTranslator took 589.80 ms. Allocated memory was 37.2 MB in the beginning and 46.7 MB in the end (delta: 9.4 MB). Free memory was 17.2 MB in the beginning and 29.0 MB in the end (delta: -11.8 MB). Peak memory consumption was 16.2 MB. Max. memory is 14.3 GB. [2020-10-20 05:58:35,501 INFO L168 Benchmark]: Boogie Preprocessor took 61.85 ms. Allocated memory is still 46.7 MB. Free memory was 29.0 MB in the beginning and 26.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 14.3 GB. [2020-10-20 05:58:35,502 INFO L168 Benchmark]: RCFGBuilder took 631.96 ms. Allocated memory was 46.7 MB in the beginning and 48.8 MB in the end (delta: 2.1 MB). Free memory was 26.3 MB in the beginning and 18.5 MB in the end (delta: 7.8 MB). Peak memory consumption was 15.2 MB. Max. memory is 14.3 GB. [2020-10-20 05:58:35,503 INFO L168 Benchmark]: TraceAbstraction took 1130.64 ms. Allocated memory was 48.8 MB in the beginning and 57.1 MB in the end (delta: 8.4 MB). Free memory was 18.2 MB in the beginning and 34.5 MB in the end (delta: -16.3 MB). Peak memory consumption was 11.6 MB. Max. memory is 14.3 GB. [2020-10-20 05:58:35,503 INFO L168 Benchmark]: Witness Printer took 5.33 ms. Allocated memory is still 57.1 MB. Free memory is still 34.5 MB. There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 05:58:35,508 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 34.1 MB. Free memory was 10.7 MB in the beginning and 10.7 MB in the end (delta: 47.5 kB). Peak memory consumption was 47.5 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 589.80 ms. Allocated memory was 37.2 MB in the beginning and 46.7 MB in the end (delta: 9.4 MB). Free memory was 17.2 MB in the beginning and 29.0 MB in the end (delta: -11.8 MB). Peak memory consumption was 16.2 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 61.85 ms. Allocated memory is still 46.7 MB. Free memory was 29.0 MB in the beginning and 26.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 14.3 GB. * RCFGBuilder took 631.96 ms. Allocated memory was 46.7 MB in the beginning and 48.8 MB in the end (delta: 2.1 MB). Free memory was 26.3 MB in the beginning and 18.5 MB in the end (delta: 7.8 MB). Peak memory consumption was 15.2 MB. Max. memory is 14.3 GB. * TraceAbstraction took 1130.64 ms. Allocated memory was 48.8 MB in the beginning and 57.1 MB in the end (delta: 8.4 MB). Free memory was 18.2 MB in the beginning and 34.5 MB in the end (delta: -16.3 MB). Peak memory consumption was 11.6 MB. Max. memory is 14.3 GB. * Witness Printer took 5.33 ms. Allocated memory is still 57.1 MB. Free memory is still 34.5 MB. There was no memory consumed. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 524]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 524. Possible FailurePath: [L526-L533] union { void *p0; struct { char c[2]; int p1; int p2; } str; } data; [L534] data.p0 = malloc(37U) VAL [data={3:0}, malloc(37U)={-1:0}] [L535] COND FALSE !(__VERIFIER_nondet_int()) [L538] data.str.p2 = 30 VAL [data={3:0}, malloc(37U)={-1:0}] [L540] EXPR data.str.p2 VAL [data={3:0}, data.str.p2=30, malloc(37U)={-1:0}] [L540] COND FALSE !(25 > data.str.p2) [L543] return 0; [L543] return 0; VAL [\result=0, malloc(37U)={-1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 50 locations, 12 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.0s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 36 SDtfs, 26 SDslu, 41 SDs, 0 SdLazy, 97 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 1043 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 05:58:37,594 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 05:58:37,596 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 05:58:37,624 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 05:58:37,624 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 05:58:37,634 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 05:58:37,635 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 05:58:37,638 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 05:58:37,641 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 05:58:37,642 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 05:58:37,644 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 05:58:37,647 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 05:58:37,648 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 05:58:37,651 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 05:58:37,654 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 05:58:37,656 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 05:58:37,658 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 05:58:37,660 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 05:58:37,663 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 05:58:37,669 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 05:58:37,671 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 05:58:37,673 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 05:58:37,675 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 05:58:37,675 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 05:58:37,696 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 05:58:37,698 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 05:58:37,699 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 05:58:37,700 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 05:58:37,701 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 05:58:37,702 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 05:58:37,704 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 05:58:37,705 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 05:58:37,706 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 05:58:37,706 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 05:58:37,707 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 05:58:37,708 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 05:58:37,709 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 05:58:37,709 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 05:58:37,710 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 05:58:37,711 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 05:58:37,712 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 05:58:37,715 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2020-10-20 05:58:37,759 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 05:58:37,759 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 05:58:37,761 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 05:58:37,762 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 05:58:37,762 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 05:58:37,762 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 05:58:37,763 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 05:58:37,763 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 05:58:37,763 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 05:58:37,763 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 05:58:37,764 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 05:58:37,765 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-20 05:58:37,765 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-20 05:58:37,766 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-20 05:58:37,766 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 05:58:37,766 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-20 05:58:37,766 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-20 05:58:37,766 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-20 05:58:37,767 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 05:58:37,767 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 05:58:37,767 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 05:58:37,768 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 05:58:37,768 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 05:58:37,768 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 05:58:37,768 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 05:58:37,769 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 05:58:37,769 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 05:58:37,769 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-20 05:58:37,769 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-20 05:58:37,770 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 05:58:37,770 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-20 05:58:37,770 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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 -> 8fdeb5a608a809e67439a428636d313b7ceb3d25 [2020-10-20 05:58:37,995 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 05:58:38,008 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 05:58:38,012 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 05:58:38,014 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 05:58:38,014 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 05:58:38,015 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2020-10-20 05:58:38,087 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff977a027/6540c34043fe48cdae7619b3bef4131c/FLAGa13cd32a9 [2020-10-20 05:58:38,628 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 05:58:38,630 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2020-10-20 05:58:38,652 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff977a027/6540c34043fe48cdae7619b3bef4131c/FLAGa13cd32a9 [2020-10-20 05:58:38,951 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff977a027/6540c34043fe48cdae7619b3bef4131c [2020-10-20 05:58:38,955 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 05:58:38,961 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-20 05:58:38,963 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 05:58:38,963 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 05:58:38,966 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 05:58:38,967 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:58:38" (1/1) ... [2020-10-20 05:58:38,970 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e7c0b47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:58:38, skipping insertion in model container [2020-10-20 05:58:38,970 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:58:38" (1/1) ... [2020-10-20 05:58:38,978 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 05:58:39,015 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 05:58:39,359 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 05:58:39,380 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 05:58:39,468 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 05:58:39,560 INFO L208 MainTranslator]: Completed translation [2020-10-20 05:58:39,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:58:39 WrapperNode [2020-10-20 05:58:39,561 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 05:58:39,562 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 05:58:39,562 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 05:58:39,564 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 05:58:39,578 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:58:39" (1/1) ... [2020-10-20 05:58:39,579 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:58:39" (1/1) ... [2020-10-20 05:58:39,597 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:58:39" (1/1) ... [2020-10-20 05:58:39,598 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:58:39" (1/1) ... [2020-10-20 05:58:39,619 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:58:39" (1/1) ... [2020-10-20 05:58:39,621 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:58:39" (1/1) ... [2020-10-20 05:58:39,625 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:58:39" (1/1) ... [2020-10-20 05:58:39,633 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 05:58:39,634 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 05:58:39,634 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 05:58:39,634 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 05:58:39,635 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:58:39" (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 [2020-10-20 05:58:39,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-20 05:58:39,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 05:58:39,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2020-10-20 05:58:39,698 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-20 05:58:39,698 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-20 05:58:39,698 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-20 05:58:39,698 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-10-20 05:58:39,698 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-10-20 05:58:39,699 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-10-20 05:58:39,699 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-20 05:58:39,699 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-20 05:58:39,699 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-20 05:58:39,699 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-20 05:58:39,699 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-20 05:58:39,700 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-20 05:58:39,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 05:58:39,700 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-20 05:58:39,700 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-20 05:58:39,700 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-20 05:58:39,701 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-20 05:58:39,701 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-20 05:58:39,701 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-20 05:58:39,701 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-20 05:58:39,701 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-20 05:58:39,702 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-20 05:58:39,702 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-20 05:58:39,702 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-20 05:58:39,702 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-20 05:58:39,702 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-20 05:58:39,703 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-20 05:58:39,703 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-20 05:58:39,703 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-20 05:58:39,703 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-20 05:58:39,703 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-20 05:58:39,703 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-10-20 05:58:39,703 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-10-20 05:58:39,704 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-10-20 05:58:39,704 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-20 05:58:39,704 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-20 05:58:39,704 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-20 05:58:39,704 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-20 05:58:39,704 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-20 05:58:39,704 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-20 05:58:39,704 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-20 05:58:39,705 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-20 05:58:39,705 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-20 05:58:39,705 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-20 05:58:39,705 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-20 05:58:39,705 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-20 05:58:39,705 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-20 05:58:39,705 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-20 05:58:39,705 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-20 05:58:39,706 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-20 05:58:39,706 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-20 05:58:39,706 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-20 05:58:39,706 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-20 05:58:39,706 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-20 05:58:39,706 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-20 05:58:39,706 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-20 05:58:39,707 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-20 05:58:39,707 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-20 05:58:39,707 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-20 05:58:39,707 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-20 05:58:39,707 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-20 05:58:39,707 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-20 05:58:39,708 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-20 05:58:39,708 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-20 05:58:39,708 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-20 05:58:39,708 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-20 05:58:39,708 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-20 05:58:39,708 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-20 05:58:39,709 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-20 05:58:39,709 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-20 05:58:39,709 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-20 05:58:39,709 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-20 05:58:39,709 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-20 05:58:39,710 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-20 05:58:39,710 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-20 05:58:39,710 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-20 05:58:39,710 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-20 05:58:39,710 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-20 05:58:39,710 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-20 05:58:39,711 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-20 05:58:39,711 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-20 05:58:39,711 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-20 05:58:39,711 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-20 05:58:39,711 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-20 05:58:39,712 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-20 05:58:39,712 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-20 05:58:39,712 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-20 05:58:39,712 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-20 05:58:39,712 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-20 05:58:39,712 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-20 05:58:39,712 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-20 05:58:39,712 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-20 05:58:39,713 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-20 05:58:39,713 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-20 05:58:39,713 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-20 05:58:39,713 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-20 05:58:39,713 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-20 05:58:39,713 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-20 05:58:39,713 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-20 05:58:39,713 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-20 05:58:39,713 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-20 05:58:39,714 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-20 05:58:39,714 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-20 05:58:39,714 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-20 05:58:39,714 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-20 05:58:39,714 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-20 05:58:39,714 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-20 05:58:39,714 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-20 05:58:39,714 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-20 05:58:39,714 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-20 05:58:39,715 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-20 05:58:39,715 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-20 05:58:39,715 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-20 05:58:39,715 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-20 05:58:39,715 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-20 05:58:39,715 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-20 05:58:39,716 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-20 05:58:39,716 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-20 05:58:39,716 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-20 05:58:39,716 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-20 05:58:39,716 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-20 05:58:39,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-20 05:58:39,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-20 05:58:39,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-20 05:58:39,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-20 05:58:39,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2020-10-20 05:58:39,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 05:58:39,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-20 05:58:39,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-20 05:58:39,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 05:58:39,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2020-10-20 05:58:39,719 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2020-10-20 05:58:39,719 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-20 05:58:40,289 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 05:58:40,289 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-20 05:58:40,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:58:40 BoogieIcfgContainer [2020-10-20 05:58:40,292 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 05:58:40,293 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 05:58:40,293 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 05:58:40,297 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 05:58:40,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 05:58:38" (1/3) ... [2020-10-20 05:58:40,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24d8ab1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:58:40, skipping insertion in model container [2020-10-20 05:58:40,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:58:39" (2/3) ... [2020-10-20 05:58:40,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24d8ab1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:58:40, skipping insertion in model container [2020-10-20 05:58:40,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:58:40" (3/3) ... [2020-10-20 05:58:40,301 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0158_1-2.i [2020-10-20 05:58:40,313 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 05:58:40,320 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2020-10-20 05:58:40,331 INFO L253 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2020-10-20 05:58:40,347 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 05:58:40,347 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-20 05:58:40,347 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 05:58:40,347 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 05:58:40,348 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 05:58:40,348 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 05:58:40,348 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 05:58:40,348 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 05:58:40,360 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2020-10-20 05:58:40,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-20 05:58:40,369 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:58:40,370 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:58:40,371 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2020-10-20 05:58:40,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:58:40,377 INFO L82 PathProgramCache]: Analyzing trace with hash -1837077008, now seen corresponding path program 1 times [2020-10-20 05:58:40,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:58:40,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1299968543] [2020-10-20 05:58:40,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-20 05:58:40,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:58:40,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 05:58:40,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:58:40,740 INFO L350 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2020-10-20 05:58:40,741 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11 [2020-10-20 05:58:40,742 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:58:40,749 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:58:40,757 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-20 05:58:40,758 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:9, output treesize:11 [2020-10-20 05:58:40,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:58:40,778 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:58:40,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:58:40,806 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1299968543] [2020-10-20 05:58:40,807 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:58:40,807 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-20 05:58:40,810 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862267259] [2020-10-20 05:58:40,816 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 05:58:40,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:58:40,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 05:58:40,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 05:58:40,835 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 3 states. [2020-10-20 05:58:40,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:58:40,952 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2020-10-20 05:58:40,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 05:58:40,954 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-10-20 05:58:40,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:58:40,966 INFO L225 Difference]: With dead ends: 24 [2020-10-20 05:58:40,966 INFO L226 Difference]: Without dead ends: 21 [2020-10-20 05:58:40,971 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 05:58:40,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-10-20 05:58:41,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-10-20 05:58:41,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-10-20 05:58:41,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2020-10-20 05:58:41,005 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 7 [2020-10-20 05:58:41,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:58:41,005 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2020-10-20 05:58:41,005 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 05:58:41,005 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2020-10-20 05:58:41,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-20 05:58:41,006 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:58:41,006 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:58:41,207 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-20 05:58:41,207 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2020-10-20 05:58:41,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:58:41,208 INFO L82 PathProgramCache]: Analyzing trace with hash -1837077007, now seen corresponding path program 1 times [2020-10-20 05:58:41,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:58:41,210 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [232856575] [2020-10-20 05:58:41,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-20 05:58:41,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:58:41,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 05:58:41,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:58:41,371 INFO L441 ElimStorePlain]: Different costs {0=[|v_#length_25|], 1=[|v_#valid_31|]} [2020-10-20 05:58:41,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-20 05:58:41,382 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2020-10-20 05:58:41,383 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:58:41,398 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:58:41,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-20 05:58:41,424 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2020-10-20 05:58:41,426 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-20 05:58:41,435 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:58:41,437 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-20 05:58:41,438 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:21, output treesize:14 [2020-10-20 05:58:41,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:58:41,460 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:58:41,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:58:41,514 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [232856575] [2020-10-20 05:58:41,514 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:58:41,514 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-10-20 05:58:41,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199189252] [2020-10-20 05:58:41,516 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 05:58:41,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:58:41,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 05:58:41,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-20 05:58:41,517 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 4 states. [2020-10-20 05:58:41,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:58:41,597 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2020-10-20 05:58:41,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 05:58:41,598 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-20 05:58:41,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:58:41,599 INFO L225 Difference]: With dead ends: 16 [2020-10-20 05:58:41,599 INFO L226 Difference]: Without dead ends: 16 [2020-10-20 05:58:41,600 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-20 05:58:41,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-10-20 05:58:41,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-10-20 05:58:41,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-10-20 05:58:41,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2020-10-20 05:58:41,603 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 7 [2020-10-20 05:58:41,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:58:41,603 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2020-10-20 05:58:41,604 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 05:58:41,604 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2020-10-20 05:58:41,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-20 05:58:41,604 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:58:41,604 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:58:41,809 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-20 05:58:41,810 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2020-10-20 05:58:41,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:58:41,810 INFO L82 PathProgramCache]: Analyzing trace with hash 1961294140, now seen corresponding path program 1 times [2020-10-20 05:58:41,811 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:58:41,812 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1364062237] [2020-10-20 05:58:41,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-10-20 05:58:41,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 05:58:41,974 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 05:58:42,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 05:58:42,025 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 05:58:42,061 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-10-20 05:58:42,061 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 05:58:42,262 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-20 05:58:42,285 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2020-10-20 05:58:42,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 05:58:42 BoogieIcfgContainer [2020-10-20 05:58:42,311 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 05:58:42,312 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 05:58:42,312 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 05:58:42,313 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 05:58:42,313 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:58:40" (3/4) ... [2020-10-20 05:58:42,317 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 05:58:42,317 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 05:58:42,319 INFO L168 Benchmark]: Toolchain (without parser) took 3362.20 ms. Allocated memory was 38.3 MB in the beginning and 61.3 MB in the end (delta: 23.1 MB). Free memory was 19.9 MB in the beginning and 26.1 MB in the end (delta: -6.2 MB). Peak memory consumption was 16.9 MB. Max. memory is 14.3 GB. [2020-10-20 05:58:42,319 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 35.1 MB. Free memory is still 11.6 MB. There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 05:58:42,322 INFO L168 Benchmark]: CACSL2BoogieTranslator took 599.24 ms. Allocated memory was 38.3 MB in the beginning and 48.8 MB in the end (delta: 10.5 MB). Free memory was 19.0 MB in the beginning and 30.9 MB in the end (delta: -11.8 MB). Peak memory consumption was 17.9 MB. Max. memory is 14.3 GB. [2020-10-20 05:58:42,322 INFO L168 Benchmark]: Boogie Preprocessor took 71.38 ms. Allocated memory is still 48.8 MB. Free memory was 30.9 MB in the beginning and 27.5 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 14.3 GB. [2020-10-20 05:58:42,329 INFO L168 Benchmark]: RCFGBuilder took 657.87 ms. Allocated memory was 48.8 MB in the beginning and 51.9 MB in the end (delta: 3.1 MB). Free memory was 27.5 MB in the beginning and 20.8 MB in the end (delta: 6.7 MB). Peak memory consumption was 16.2 MB. Max. memory is 14.3 GB. [2020-10-20 05:58:42,331 INFO L168 Benchmark]: TraceAbstraction took 2018.30 ms. Allocated memory was 51.9 MB in the beginning and 61.3 MB in the end (delta: 9.4 MB). Free memory was 20.0 MB in the beginning and 26.7 MB in the end (delta: -6.7 MB). Peak memory consumption was 2.8 MB. Max. memory is 14.3 GB. [2020-10-20 05:58:42,331 INFO L168 Benchmark]: Witness Printer took 5.52 ms. Allocated memory is still 61.3 MB. Free memory was 26.7 MB in the beginning and 26.1 MB in the end (delta: 572.6 kB). Peak memory consumption was 572.6 kB. Max. memory is 14.3 GB. [2020-10-20 05:58:42,343 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 35.1 MB. Free memory is still 11.6 MB. There was no memory consumed. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 599.24 ms. Allocated memory was 38.3 MB in the beginning and 48.8 MB in the end (delta: 10.5 MB). Free memory was 19.0 MB in the beginning and 30.9 MB in the end (delta: -11.8 MB). Peak memory consumption was 17.9 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 71.38 ms. Allocated memory is still 48.8 MB. Free memory was 30.9 MB in the beginning and 27.5 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 14.3 GB. * RCFGBuilder took 657.87 ms. Allocated memory was 48.8 MB in the beginning and 51.9 MB in the end (delta: 3.1 MB). Free memory was 27.5 MB in the beginning and 20.8 MB in the end (delta: 6.7 MB). Peak memory consumption was 16.2 MB. Max. memory is 14.3 GB. * TraceAbstraction took 2018.30 ms. Allocated memory was 51.9 MB in the beginning and 61.3 MB in the end (delta: 9.4 MB). Free memory was 20.0 MB in the beginning and 26.7 MB in the end (delta: -6.7 MB). Peak memory consumption was 2.8 MB. Max. memory is 14.3 GB. * Witness Printer took 5.52 ms. Allocated memory is still 61.3 MB. Free memory was 26.7 MB in the beginning and 26.1 MB in the end (delta: 572.6 kB). Peak memory consumption was 572.6 kB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 524]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 524. Possible FailurePath: [L526-L533] union { void *p0; struct { char c[2]; int p1; int p2; } str; } data; [L534] data.p0 = malloc(37U) VAL [data={3:0}, malloc(37U)={1:0}] [L535] COND FALSE !(__VERIFIER_nondet_int()) [L538] data.str.p2 = 30 VAL [data={3:0}, malloc(37U)={1:0}] [L540] EXPR data.str.p2 VAL [data={3:0}, data.str.p2=30, malloc(37U)={1:0}] [L540] COND FALSE !(25 > data.str.p2) [L543] return 0; [L543] return 0; VAL [\result=0, malloc(37U)={1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 55 locations, 12 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.9s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 25 SDtfs, 23 SDslu, 16 SDs, 0 SdLazy, 25 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 24 ConstructedInterpolants, 1 QuantifiedInterpolants, 360 SizeOfPredicates, 5 NumberOfNonLiveVariables, 122 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request...