./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/array-memsafety/lis-alloca-1.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/array-memsafety/lis-alloca-1.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 111460b358d4c09612932eb239746dbb8202adb9 ............................................................................................................................. 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/array-memsafety/lis-alloca-1.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 111460b358d4c09612932eb239746dbb8202adb9 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 05:49:55,694 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 05:49:55,697 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 05:49:55,737 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 05:49:55,738 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 05:49:55,747 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 05:49:55,749 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 05:49:55,753 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 05:49:55,756 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 05:49:55,759 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 05:49:55,760 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 05:49:55,761 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 05:49:55,762 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 05:49:55,765 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 05:49:55,766 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 05:49:55,768 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 05:49:55,770 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 05:49:55,771 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 05:49:55,773 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 05:49:55,780 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 05:49:55,782 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 05:49:55,784 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 05:49:55,786 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 05:49:55,787 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 05:49:55,812 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 05:49:55,813 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 05:49:55,813 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 05:49:55,814 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 05:49:55,814 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 05:49:55,815 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 05:49:55,815 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 05:49:55,816 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 05:49:55,817 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 05:49:55,817 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 05:49:55,818 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 05:49:55,818 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 05:49:55,819 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 05:49:55,819 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 05:49:55,819 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 05:49:55,823 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 05:49:55,824 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 05:49:55,825 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-10-20 05:49:55,861 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 05:49:55,861 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 05:49:55,864 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 05:49:55,864 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 05:49:55,864 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 05:49:55,864 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 05:49:55,864 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 05:49:55,865 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 05:49:55,865 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 05:49:55,865 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 05:49:55,865 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 05:49:55,866 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-20 05:49:55,866 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-20 05:49:55,867 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-20 05:49:55,867 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 05:49:55,867 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-20 05:49:55,868 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 05:49:55,868 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 05:49:55,868 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 05:49:55,868 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 05:49:55,869 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 05:49:55,869 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 05:49:55,869 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 05:49:55,869 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 05:49:55,869 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 05:49:55,869 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 05:49:55,870 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 05:49:55,870 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 05:49:55,870 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 -> 111460b358d4c09612932eb239746dbb8202adb9 [2020-10-20 05:49:56,089 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 05:49:56,102 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 05:49:56,109 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 05:49:56,110 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 05:49:56,111 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 05:49:56,112 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/lis-alloca-1.i [2020-10-20 05:49:56,197 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d277e245/707d353ffdf644c2b7d162b69dbf2551/FLAG7d2a411c2 [2020-10-20 05:49:56,777 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 05:49:56,778 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/lis-alloca-1.i [2020-10-20 05:49:56,808 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d277e245/707d353ffdf644c2b7d162b69dbf2551/FLAG7d2a411c2 [2020-10-20 05:49:57,072 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d277e245/707d353ffdf644c2b7d162b69dbf2551 [2020-10-20 05:49:57,076 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 05:49:57,085 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-20 05:49:57,088 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 05:49:57,088 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 05:49:57,092 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 05:49:57,094 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:49:57" (1/1) ... [2020-10-20 05:49:57,098 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51cbd9bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:49:57, skipping insertion in model container [2020-10-20 05:49:57,099 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:49:57" (1/1) ... [2020-10-20 05:49:57,108 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 05:49:57,177 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 05:49:57,751 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 05:49:57,770 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2020-10-20 05:49:57,771 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@39fee40a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:49:57, skipping insertion in model container [2020-10-20 05:49:57,771 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 05:49:57,772 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2020-10-20 05:49:57,777 INFO L168 Benchmark]: Toolchain (without parser) took 696.73 ms. Allocated memory was 37.2 MB in the beginning and 45.6 MB in the end (delta: 8.4 MB). Free memory was 18.2 MB in the beginning and 26.3 MB in the end (delta: -8.1 MB). Peak memory consumption was 11.8 MB. Max. memory is 14.3 GB. [2020-10-20 05:49:57,778 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 34.1 MB. Free memory was 11.0 MB in the beginning and 11.0 MB in the end (delta: 47.4 kB). Peak memory consumption was 47.4 kB. Max. memory is 14.3 GB. [2020-10-20 05:49:57,781 INFO L168 Benchmark]: CACSL2BoogieTranslator took 683.91 ms. Allocated memory was 37.2 MB in the beginning and 45.6 MB in the end (delta: 8.4 MB). Free memory was 17.4 MB in the beginning and 26.3 MB in the end (delta: -9.0 MB). Peak memory consumption was 10.9 MB. Max. memory is 14.3 GB. [2020-10-20 05:49:57,785 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 34.1 MB. Free memory was 11.0 MB in the beginning and 11.0 MB in the end (delta: 47.4 kB). Peak memory consumption was 47.4 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 683.91 ms. Allocated memory was 37.2 MB in the beginning and 45.6 MB in the end (delta: 8.4 MB). Free memory was 17.4 MB in the beginning and 26.3 MB in the end (delta: -9.0 MB). Peak memory consumption was 10.9 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 515]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 05:49:59,870 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 05:49:59,872 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 05:49:59,897 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 05:49:59,898 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 05:49:59,899 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 05:49:59,900 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 05:49:59,902 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 05:49:59,903 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 05:49:59,904 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 05:49:59,906 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 05:49:59,907 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 05:49:59,907 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 05:49:59,908 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 05:49:59,909 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 05:49:59,910 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 05:49:59,911 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 05:49:59,912 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 05:49:59,914 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 05:49:59,921 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 05:49:59,923 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 05:49:59,924 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 05:49:59,926 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 05:49:59,927 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 05:49:59,929 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 05:49:59,930 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 05:49:59,930 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 05:49:59,931 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 05:49:59,931 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 05:49:59,932 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 05:49:59,932 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 05:49:59,933 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 05:49:59,934 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 05:49:59,935 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 05:49:59,936 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 05:49:59,936 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 05:49:59,937 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 05:49:59,937 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 05:49:59,938 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 05:49:59,938 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 05:49:59,939 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 05:49:59,940 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2020-10-20 05:49:59,964 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 05:49:59,964 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 05:49:59,965 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 05:49:59,965 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 05:49:59,966 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 05:49:59,966 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 05:49:59,966 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 05:49:59,966 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 05:49:59,966 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 05:49:59,967 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 05:49:59,967 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 05:49:59,967 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-20 05:49:59,967 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-20 05:49:59,967 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-20 05:49:59,967 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 05:49:59,968 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-20 05:49:59,968 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-20 05:49:59,970 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-20 05:49:59,970 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 05:49:59,970 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 05:49:59,971 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 05:49:59,971 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 05:49:59,971 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 05:49:59,971 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 05:49:59,971 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 05:49:59,972 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 05:49:59,972 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 05:49:59,972 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-20 05:49:59,972 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-20 05:49:59,972 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 05:49:59,972 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-20 05:49:59,973 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 -> 111460b358d4c09612932eb239746dbb8202adb9 [2020-10-20 05:50:00,231 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 05:50:00,250 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 05:50:00,258 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 05:50:00,260 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 05:50:00,261 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 05:50:00,262 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/lis-alloca-1.i [2020-10-20 05:50:00,353 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a88241908/02ff367d1f7a43f48bf322ae418b7a26/FLAG3799d758f [2020-10-20 05:50:01,056 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 05:50:01,057 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/lis-alloca-1.i [2020-10-20 05:50:01,074 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a88241908/02ff367d1f7a43f48bf322ae418b7a26/FLAG3799d758f [2020-10-20 05:50:01,411 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a88241908/02ff367d1f7a43f48bf322ae418b7a26 [2020-10-20 05:50:01,417 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 05:50:01,424 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-20 05:50:01,426 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 05:50:01,426 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 05:50:01,430 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 05:50:01,431 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:50:01" (1/1) ... [2020-10-20 05:50:01,435 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19041d91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:50:01, skipping insertion in model container [2020-10-20 05:50:01,435 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:50:01" (1/1) ... [2020-10-20 05:50:01,445 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 05:50:01,504 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 05:50:01,927 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 05:50:01,947 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-10-20 05:50:01,960 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 05:50:02,015 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 05:50:02,021 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 05:50:02,096 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 05:50:02,150 INFO L208 MainTranslator]: Completed translation [2020-10-20 05:50:02,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:50:02 WrapperNode [2020-10-20 05:50:02,151 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 05:50:02,152 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 05:50:02,152 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 05:50:02,153 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 05:50:02,167 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:50:02" (1/1) ... [2020-10-20 05:50:02,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:50:02" (1/1) ... [2020-10-20 05:50:02,188 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:50:02" (1/1) ... [2020-10-20 05:50:02,189 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:50:02" (1/1) ... [2020-10-20 05:50:02,206 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:50:02" (1/1) ... [2020-10-20 05:50:02,213 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:50:02" (1/1) ... [2020-10-20 05:50:02,217 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:50:02" (1/1) ... [2020-10-20 05:50:02,225 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 05:50:02,225 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 05:50:02,226 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 05:50:02,226 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 05:50:02,227 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:50:02" (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 05:50:02,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-20 05:50:02,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 05:50:02,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2020-10-20 05:50:02,315 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-20 05:50:02,315 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-20 05:50:02,315 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-10-20 05:50:02,316 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-10-20 05:50:02,316 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-10-20 05:50:02,316 INFO L138 BoogieDeclarations]: Found implementation of procedure lis [2020-10-20 05:50:02,316 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-20 05:50:02,317 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-20 05:50:02,317 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-20 05:50:02,317 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-20 05:50:02,317 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-20 05:50:02,318 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-20 05:50:02,318 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-20 05:50:02,318 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-20 05:50:02,318 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-20 05:50:02,319 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-20 05:50:02,319 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-20 05:50:02,319 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-20 05:50:02,320 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-20 05:50:02,320 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-20 05:50:02,320 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-20 05:50:02,320 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-20 05:50:02,320 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-20 05:50:02,321 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-20 05:50:02,321 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-20 05:50:02,321 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-10-20 05:50:02,321 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-10-20 05:50:02,321 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-10-20 05:50:02,322 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-20 05:50:02,322 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-20 05:50:02,322 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-20 05:50:02,322 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-20 05:50:02,323 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-20 05:50:02,323 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-20 05:50:02,323 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-20 05:50:02,323 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-20 05:50:02,323 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-20 05:50:02,324 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-20 05:50:02,324 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-20 05:50:02,324 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-20 05:50:02,324 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-20 05:50:02,324 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-20 05:50:02,325 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-20 05:50:02,325 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-20 05:50:02,325 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-20 05:50:02,325 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-20 05:50:02,325 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-20 05:50:02,326 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-20 05:50:02,326 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-20 05:50:02,326 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-20 05:50:02,326 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-20 05:50:02,327 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-20 05:50:02,327 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-20 05:50:02,327 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-20 05:50:02,327 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-20 05:50:02,327 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-20 05:50:02,328 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-20 05:50:02,328 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-20 05:50:02,328 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-20 05:50:02,328 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-20 05:50:02,328 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-20 05:50:02,329 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-20 05:50:02,329 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-20 05:50:02,329 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-20 05:50:02,329 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-20 05:50:02,329 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-20 05:50:02,330 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-20 05:50:02,330 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-20 05:50:02,330 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-20 05:50:02,330 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-20 05:50:02,331 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-20 05:50:02,331 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-20 05:50:02,331 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-20 05:50:02,331 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-20 05:50:02,331 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-20 05:50:02,332 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-20 05:50:02,332 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-20 05:50:02,332 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-20 05:50:02,332 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-20 05:50:02,332 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-20 05:50:02,333 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-20 05:50:02,333 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-20 05:50:02,333 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-20 05:50:02,333 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-20 05:50:02,333 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-20 05:50:02,334 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-20 05:50:02,334 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-20 05:50:02,334 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-20 05:50:02,334 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-20 05:50:02,334 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-20 05:50:02,335 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-20 05:50:02,335 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-20 05:50:02,335 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-20 05:50:02,335 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-20 05:50:02,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-20 05:50:02,336 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-20 05:50:02,336 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-20 05:50:02,336 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-20 05:50:02,336 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-20 05:50:02,336 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-20 05:50:02,336 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-20 05:50:02,337 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-20 05:50:02,337 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-20 05:50:02,337 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-20 05:50:02,337 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-20 05:50:02,337 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-20 05:50:02,338 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-20 05:50:02,338 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-20 05:50:02,338 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-20 05:50:02,338 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-20 05:50:02,339 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-20 05:50:02,339 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-20 05:50:02,339 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-20 05:50:02,339 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-20 05:50:02,339 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-20 05:50:02,340 INFO L130 BoogieDeclarations]: Found specification of procedure lis [2020-10-20 05:50:02,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 05:50:02,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-20 05:50:02,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-20 05:50:02,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 05:50:02,341 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-20 05:50:02,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-20 05:50:02,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 05:50:02,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2020-10-20 05:50:03,264 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 05:50:03,264 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-20 05:50:03,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:50:03 BoogieIcfgContainer [2020-10-20 05:50:03,267 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 05:50:03,268 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 05:50:03,268 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 05:50:03,272 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 05:50:03,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 05:50:01" (1/3) ... [2020-10-20 05:50:03,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ff03bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:50:03, skipping insertion in model container [2020-10-20 05:50:03,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:50:02" (2/3) ... [2020-10-20 05:50:03,274 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ff03bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:50:03, skipping insertion in model container [2020-10-20 05:50:03,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:50:03" (3/3) ... [2020-10-20 05:50:03,276 INFO L111 eAbstractionObserver]: Analyzing ICFG lis-alloca-1.i [2020-10-20 05:50:03,290 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 05:50:03,299 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 25 error locations. [2020-10-20 05:50:03,311 INFO L253 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2020-10-20 05:50:03,328 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 05:50:03,328 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-20 05:50:03,329 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 05:50:03,329 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 05:50:03,329 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 05:50:03,329 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 05:50:03,329 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 05:50:03,329 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 05:50:03,347 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states. [2020-10-20 05:50:03,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-20 05:50:03,358 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:50:03,359 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:50:03,360 INFO L429 AbstractCegarLoop]: === Iteration 1 === [lisErr12REQUIRES_VIOLATION, lisErr1REQUIRES_VIOLATION, lisErr0REQUIRES_VIOLATION, lisErr11REQUIRES_VIOLATION, lisErr10REQUIRES_VIOLATION, lisErr21REQUIRES_VIOLATION, lisErr20REQUIRES_VIOLATION, lisErr9REQUIRES_VIOLATION, lisErr8REQUIRES_VIOLATION, lisErr19REQUIRES_VIOLATION, lisErr18REQUIRES_VIOLATION, lisErr7REQUIRES_VIOLATION, lisErr6REQUIRES_VIOLATION, lisErr17REQUIRES_VIOLATION, lisErr16REQUIRES_VIOLATION, lisErr5REQUIRES_VIOLATION, lisErr4REQUIRES_VIOLATION, lisErr15REQUIRES_VIOLATION, lisErr14REQUIRES_VIOLATION, lisErr3REQUIRES_VIOLATION, lisErr2REQUIRES_VIOLATION, lisErr13REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:50:03,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:50:03,366 INFO L82 PathProgramCache]: Analyzing trace with hash 1927880403, now seen corresponding path program 1 times [2020-10-20 05:50:03,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:50:03,381 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [292140217] [2020-10-20 05:50:03,381 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 05:50:03,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:50:03,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-20 05:50:03,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:50:03,656 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 0 case distinctions, treesize of input 6 treesize of output 5 [2020-10-20 05:50:03,657 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:50:03,668 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:50:03,669 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:50:03,670 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2020-10-20 05:50:03,691 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 05:50:03,691 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:50:03,837 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 12 [2020-10-20 05:50:03,877 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 05:50:03,878 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [292140217] [2020-10-20 05:50:03,878 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:50:03,879 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-10-20 05:50:03,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066841881] [2020-10-20 05:50:03,886 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 05:50:03,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:50:03,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 05:50:03,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-20 05:50:03,906 INFO L87 Difference]: Start difference. First operand 75 states. Second operand 6 states. [2020-10-20 05:50:04,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:50:04,856 INFO L93 Difference]: Finished difference Result 96 states and 108 transitions. [2020-10-20 05:50:04,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 05:50:04,860 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-10-20 05:50:04,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:50:04,881 INFO L225 Difference]: With dead ends: 96 [2020-10-20 05:50:04,881 INFO L226 Difference]: Without dead ends: 92 [2020-10-20 05:50:04,883 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-10-20 05:50:04,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-10-20 05:50:04,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 76. [2020-10-20 05:50:04,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-10-20 05:50:04,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 86 transitions. [2020-10-20 05:50:04,937 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 86 transitions. Word has length 10 [2020-10-20 05:50:04,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:50:04,937 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 86 transitions. [2020-10-20 05:50:04,938 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 05:50:04,938 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 86 transitions. [2020-10-20 05:50:04,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-20 05:50:04,938 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:50:04,938 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:50:05,148 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-20 05:50:05,150 INFO L429 AbstractCegarLoop]: === Iteration 2 === [lisErr12REQUIRES_VIOLATION, lisErr1REQUIRES_VIOLATION, lisErr0REQUIRES_VIOLATION, lisErr11REQUIRES_VIOLATION, lisErr10REQUIRES_VIOLATION, lisErr21REQUIRES_VIOLATION, lisErr20REQUIRES_VIOLATION, lisErr9REQUIRES_VIOLATION, lisErr8REQUIRES_VIOLATION, lisErr19REQUIRES_VIOLATION, lisErr18REQUIRES_VIOLATION, lisErr7REQUIRES_VIOLATION, lisErr6REQUIRES_VIOLATION, lisErr17REQUIRES_VIOLATION, lisErr16REQUIRES_VIOLATION, lisErr5REQUIRES_VIOLATION, lisErr4REQUIRES_VIOLATION, lisErr15REQUIRES_VIOLATION, lisErr14REQUIRES_VIOLATION, lisErr3REQUIRES_VIOLATION, lisErr2REQUIRES_VIOLATION, lisErr13REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:50:05,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:50:05,151 INFO L82 PathProgramCache]: Analyzing trace with hash 1927880402, now seen corresponding path program 1 times [2020-10-20 05:50:05,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:50:05,152 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2064117847] [2020-10-20 05:50:05,153 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 05:50:05,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:50:05,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-20 05:50:05,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:50:05,279 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 0 case distinctions, treesize of input 6 treesize of output 5 [2020-10-20 05:50:05,279 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:50:05,281 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:50:05,282 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:50:05,282 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-20 05:50:05,286 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 05:50:05,286 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:50:05,296 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 05:50:05,296 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2064117847] [2020-10-20 05:50:05,296 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:50:05,296 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-20 05:50:05,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897313152] [2020-10-20 05:50:05,298 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 05:50:05,298 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:50:05,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 05:50:05,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 05:50:05,299 INFO L87 Difference]: Start difference. First operand 76 states and 86 transitions. Second operand 3 states. [2020-10-20 05:50:05,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:50:05,474 INFO L93 Difference]: Finished difference Result 75 states and 84 transitions. [2020-10-20 05:50:05,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 05:50:05,474 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-20 05:50:05,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:50:05,476 INFO L225 Difference]: With dead ends: 75 [2020-10-20 05:50:05,476 INFO L226 Difference]: Without dead ends: 75 [2020-10-20 05:50:05,477 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 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 05:50:05,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-10-20 05:50:05,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2020-10-20 05:50:05,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-10-20 05:50:05,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 84 transitions. [2020-10-20 05:50:05,513 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 84 transitions. Word has length 10 [2020-10-20 05:50:05,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:50:05,513 INFO L481 AbstractCegarLoop]: Abstraction has 75 states and 84 transitions. [2020-10-20 05:50:05,514 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 05:50:05,514 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 84 transitions. [2020-10-20 05:50:05,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-20 05:50:05,514 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:50:05,515 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:50:05,728 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-20 05:50:05,729 INFO L429 AbstractCegarLoop]: === Iteration 3 === [lisErr12REQUIRES_VIOLATION, lisErr1REQUIRES_VIOLATION, lisErr0REQUIRES_VIOLATION, lisErr11REQUIRES_VIOLATION, lisErr10REQUIRES_VIOLATION, lisErr21REQUIRES_VIOLATION, lisErr20REQUIRES_VIOLATION, lisErr9REQUIRES_VIOLATION, lisErr8REQUIRES_VIOLATION, lisErr19REQUIRES_VIOLATION, lisErr18REQUIRES_VIOLATION, lisErr7REQUIRES_VIOLATION, lisErr6REQUIRES_VIOLATION, lisErr17REQUIRES_VIOLATION, lisErr16REQUIRES_VIOLATION, lisErr5REQUIRES_VIOLATION, lisErr4REQUIRES_VIOLATION, lisErr15REQUIRES_VIOLATION, lisErr14REQUIRES_VIOLATION, lisErr3REQUIRES_VIOLATION, lisErr2REQUIRES_VIOLATION, lisErr13REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:50:05,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:50:05,729 INFO L82 PathProgramCache]: Analyzing trace with hash -1335561013, now seen corresponding path program 1 times [2020-10-20 05:50:05,730 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:50:05,730 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1182173524] [2020-10-20 05:50:05,730 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 05:50:05,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:50:05,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 05:50:05,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:50:05,921 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 05:50:05,922 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:50:05,946 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 05:50:05,947 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1182173524] [2020-10-20 05:50:05,947 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:50:05,947 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-10-20 05:50:05,948 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828037504] [2020-10-20 05:50:05,948 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 05:50:05,948 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:50:05,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 05:50:05,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-20 05:50:05,949 INFO L87 Difference]: Start difference. First operand 75 states and 84 transitions. Second operand 6 states. [2020-10-20 05:50:06,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:50:06,030 INFO L93 Difference]: Finished difference Result 77 states and 85 transitions. [2020-10-20 05:50:06,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 05:50:06,031 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-10-20 05:50:06,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:50:06,032 INFO L225 Difference]: With dead ends: 77 [2020-10-20 05:50:06,033 INFO L226 Difference]: Without dead ends: 77 [2020-10-20 05:50:06,033 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-20 05:50:06,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-10-20 05:50:06,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 73. [2020-10-20 05:50:06,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-10-20 05:50:06,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 81 transitions. [2020-10-20 05:50:06,041 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 81 transitions. Word has length 13 [2020-10-20 05:50:06,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:50:06,041 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 81 transitions. [2020-10-20 05:50:06,042 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 05:50:06,042 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 81 transitions. [2020-10-20 05:50:06,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-20 05:50:06,042 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:50:06,043 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:50:06,253 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-20 05:50:06,254 INFO L429 AbstractCegarLoop]: === Iteration 4 === [lisErr12REQUIRES_VIOLATION, lisErr1REQUIRES_VIOLATION, lisErr0REQUIRES_VIOLATION, lisErr11REQUIRES_VIOLATION, lisErr10REQUIRES_VIOLATION, lisErr21REQUIRES_VIOLATION, lisErr20REQUIRES_VIOLATION, lisErr9REQUIRES_VIOLATION, lisErr8REQUIRES_VIOLATION, lisErr19REQUIRES_VIOLATION, lisErr18REQUIRES_VIOLATION, lisErr7REQUIRES_VIOLATION, lisErr6REQUIRES_VIOLATION, lisErr17REQUIRES_VIOLATION, lisErr16REQUIRES_VIOLATION, lisErr5REQUIRES_VIOLATION, lisErr4REQUIRES_VIOLATION, lisErr15REQUIRES_VIOLATION, lisErr14REQUIRES_VIOLATION, lisErr3REQUIRES_VIOLATION, lisErr2REQUIRES_VIOLATION, lisErr13REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:50:06,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:50:06,255 INFO L82 PathProgramCache]: Analyzing trace with hash -2000529002, now seen corresponding path program 1 times [2020-10-20 05:50:06,256 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:50:06,256 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1798669240] [2020-10-20 05:50:06,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-10-20 05:50:06,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:50:06,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 05:50:06,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:50:06,379 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:50:06,379 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:50:06,421 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:50:06,421 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1798669240] [2020-10-20 05:50:06,422 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 05:50:06,422 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-10-20 05:50:06,422 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197262433] [2020-10-20 05:50:06,423 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-20 05:50:06,423 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:50:06,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-20 05:50:06,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-20 05:50:06,423 INFO L87 Difference]: Start difference. First operand 73 states and 81 transitions. Second operand 8 states. [2020-10-20 05:50:06,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:50:06,530 INFO L93 Difference]: Finished difference Result 83 states and 91 transitions. [2020-10-20 05:50:06,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 05:50:06,531 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2020-10-20 05:50:06,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:50:06,532 INFO L225 Difference]: With dead ends: 83 [2020-10-20 05:50:06,532 INFO L226 Difference]: Without dead ends: 83 [2020-10-20 05:50:06,535 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-20 05:50:06,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-10-20 05:50:06,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 79. [2020-10-20 05:50:06,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-10-20 05:50:06,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 87 transitions. [2020-10-20 05:50:06,552 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 87 transitions. Word has length 14 [2020-10-20 05:50:06,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:50:06,552 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 87 transitions. [2020-10-20 05:50:06,552 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-20 05:50:06,553 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 87 transitions. [2020-10-20 05:50:06,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-20 05:50:06,554 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:50:06,554 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:50:06,774 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-20 05:50:06,775 INFO L429 AbstractCegarLoop]: === Iteration 5 === [lisErr12REQUIRES_VIOLATION, lisErr1REQUIRES_VIOLATION, lisErr0REQUIRES_VIOLATION, lisErr11REQUIRES_VIOLATION, lisErr10REQUIRES_VIOLATION, lisErr21REQUIRES_VIOLATION, lisErr20REQUIRES_VIOLATION, lisErr9REQUIRES_VIOLATION, lisErr8REQUIRES_VIOLATION, lisErr19REQUIRES_VIOLATION, lisErr18REQUIRES_VIOLATION, lisErr7REQUIRES_VIOLATION, lisErr6REQUIRES_VIOLATION, lisErr17REQUIRES_VIOLATION, lisErr16REQUIRES_VIOLATION, lisErr5REQUIRES_VIOLATION, lisErr4REQUIRES_VIOLATION, lisErr15REQUIRES_VIOLATION, lisErr14REQUIRES_VIOLATION, lisErr3REQUIRES_VIOLATION, lisErr2REQUIRES_VIOLATION, lisErr13REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:50:06,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:50:06,775 INFO L82 PathProgramCache]: Analyzing trace with hash 1485091668, now seen corresponding path program 1 times [2020-10-20 05:50:06,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:50:06,776 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1041204291] [2020-10-20 05:50:06,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-10-20 05:50:06,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:50:06,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-20 05:50:06,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:50:06,897 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 0 case distinctions, treesize of input 8 treesize of output 7 [2020-10-20 05:50:06,898 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:50:06,919 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:50:06,919 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:50:06,920 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:22 [2020-10-20 05:50:07,049 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:50:07,049 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:50:07,426 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:50:07,427 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1041204291] [2020-10-20 05:50:07,427 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 05:50:07,427 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2020-10-20 05:50:07,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60627172] [2020-10-20 05:50:07,428 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-20 05:50:07,428 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:50:07,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-20 05:50:07,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-20 05:50:07,429 INFO L87 Difference]: Start difference. First operand 79 states and 87 transitions. Second operand 10 states. [2020-10-20 05:50:07,865 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-10-20 05:50:08,113 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-10-20 05:50:09,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:50:09,191 INFO L93 Difference]: Finished difference Result 93 states and 106 transitions. [2020-10-20 05:50:09,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-20 05:50:09,193 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 14 [2020-10-20 05:50:09,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:50:09,196 INFO L225 Difference]: With dead ends: 93 [2020-10-20 05:50:09,196 INFO L226 Difference]: Without dead ends: 93 [2020-10-20 05:50:09,197 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=78, Invalid=132, Unknown=0, NotChecked=0, Total=210 [2020-10-20 05:50:09,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-10-20 05:50:09,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2020-10-20 05:50:09,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-10-20 05:50:09,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 102 transitions. [2020-10-20 05:50:09,206 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 102 transitions. Word has length 14 [2020-10-20 05:50:09,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:50:09,207 INFO L481 AbstractCegarLoop]: Abstraction has 91 states and 102 transitions. [2020-10-20 05:50:09,207 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-20 05:50:09,207 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 102 transitions. [2020-10-20 05:50:09,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 05:50:09,208 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:50:09,208 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:50:09,410 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-10-20 05:50:09,411 INFO L429 AbstractCegarLoop]: === Iteration 6 === [lisErr12REQUIRES_VIOLATION, lisErr1REQUIRES_VIOLATION, lisErr0REQUIRES_VIOLATION, lisErr11REQUIRES_VIOLATION, lisErr10REQUIRES_VIOLATION, lisErr21REQUIRES_VIOLATION, lisErr20REQUIRES_VIOLATION, lisErr9REQUIRES_VIOLATION, lisErr8REQUIRES_VIOLATION, lisErr19REQUIRES_VIOLATION, lisErr18REQUIRES_VIOLATION, lisErr7REQUIRES_VIOLATION, lisErr6REQUIRES_VIOLATION, lisErr17REQUIRES_VIOLATION, lisErr16REQUIRES_VIOLATION, lisErr5REQUIRES_VIOLATION, lisErr4REQUIRES_VIOLATION, lisErr15REQUIRES_VIOLATION, lisErr14REQUIRES_VIOLATION, lisErr3REQUIRES_VIOLATION, lisErr2REQUIRES_VIOLATION, lisErr13REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:50:09,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:50:09,411 INFO L82 PathProgramCache]: Analyzing trace with hash -791304026, now seen corresponding path program 1 times [2020-10-20 05:50:09,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:50:09,412 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1248450862] [2020-10-20 05:50:09,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-10-20 05:50:09,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:50:09,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 05:50:09,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:50:09,562 INFO L350 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2020-10-20 05:50:09,563 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18 [2020-10-20 05:50:09,566 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:50:09,574 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:50:09,577 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1248450862] [2020-10-20 05:50:09,577 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 05:50:09,578 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [18786952] [2020-10-20 05:50:09,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 05:50:09,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:50:09,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 05:50:09,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:50:09,825 INFO L350 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2020-10-20 05:50:09,826 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18 [2020-10-20 05:50:09,828 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:50:09,837 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:50:09,838 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 05:50:09,838 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [498299440] [2020-10-20 05:50:09,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 05:50:09,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:50:09,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 05:50:09,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:50:09,972 INFO L350 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2020-10-20 05:50:09,972 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18 [2020-10-20 05:50:09,975 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:50:09,984 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:50:09,985 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 05:50:09,985 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:50:09,985 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-10-20 05:50:09,986 ERROR L205 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2020-10-20 05:50:09,986 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 05:50:10,593 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 mathsat -unsat_core_generation=3,8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 05:50:10,607 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-20 05:50:10,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 05:50:10 BoogieIcfgContainer [2020-10-20 05:50:10,607 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 05:50:10,608 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 05:50:10,608 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 05:50:10,608 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 05:50:10,609 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:50:03" (3/4) ... [2020-10-20 05:50:10,613 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 05:50:10,614 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 05:50:10,615 INFO L168 Benchmark]: Toolchain (without parser) took 9196.98 ms. Allocated memory was 40.4 MB in the beginning and 67.1 MB in the end (delta: 26.7 MB). Free memory was 17.1 MB in the beginning and 32.4 MB in the end (delta: -15.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 14.3 GB. [2020-10-20 05:50:10,616 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 30.9 MB. Free memory was 6.9 MB in the beginning and 6.8 MB in the end (delta: 43.7 kB). Peak memory consumption was 43.7 kB. Max. memory is 14.3 GB. [2020-10-20 05:50:10,617 INFO L168 Benchmark]: CACSL2BoogieTranslator took 725.48 ms. Allocated memory was 40.4 MB in the beginning and 43.0 MB in the end (delta: 2.6 MB). Free memory was 16.1 MB in the beginning and 15.5 MB in the end (delta: 598.6 kB). Peak memory consumption was 6.8 MB. Max. memory is 14.3 GB. [2020-10-20 05:50:10,618 INFO L168 Benchmark]: Boogie Preprocessor took 73.03 ms. Allocated memory is still 43.0 MB. Free memory was 15.5 MB in the beginning and 12.3 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 14.3 GB. [2020-10-20 05:50:10,621 INFO L168 Benchmark]: RCFGBuilder took 1041.27 ms. Allocated memory was 43.0 MB in the beginning and 47.7 MB in the end (delta: 4.7 MB). Free memory was 12.3 MB in the beginning and 25.3 MB in the end (delta: -13.0 MB). Peak memory consumption was 4.4 MB. Max. memory is 14.3 GB. [2020-10-20 05:50:10,625 INFO L168 Benchmark]: TraceAbstraction took 7339.76 ms. Allocated memory was 47.7 MB in the beginning and 67.1 MB in the end (delta: 19.4 MB). Free memory was 24.9 MB in the beginning and 32.4 MB in the end (delta: -7.5 MB). Peak memory consumption was 11.9 MB. Max. memory is 14.3 GB. [2020-10-20 05:50:10,626 INFO L168 Benchmark]: Witness Printer took 5.73 ms. Allocated memory is still 67.1 MB. Free memory is still 32.4 MB. There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 05:50:10,631 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 30.9 MB. Free memory was 6.9 MB in the beginning and 6.8 MB in the end (delta: 43.7 kB). Peak memory consumption was 43.7 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 725.48 ms. Allocated memory was 40.4 MB in the beginning and 43.0 MB in the end (delta: 2.6 MB). Free memory was 16.1 MB in the beginning and 15.5 MB in the end (delta: 598.6 kB). Peak memory consumption was 6.8 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 73.03 ms. Allocated memory is still 43.0 MB. Free memory was 15.5 MB in the beginning and 12.3 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 14.3 GB. * RCFGBuilder took 1041.27 ms. Allocated memory was 43.0 MB in the beginning and 47.7 MB in the end (delta: 4.7 MB). Free memory was 12.3 MB in the beginning and 25.3 MB in the end (delta: -13.0 MB). Peak memory consumption was 4.4 MB. Max. memory is 14.3 GB. * TraceAbstraction took 7339.76 ms. Allocated memory was 47.7 MB in the beginning and 67.1 MB in the end (delta: 19.4 MB). Free memory was 24.9 MB in the beginning and 32.4 MB in the end (delta: -7.5 MB). Peak memory consumption was 11.9 MB. Max. memory is 14.3 GB. * Witness Printer took 5.73 ms. Allocated memory is still 67.1 MB. Free memory is still 32.4 MB. There was no memory consumed. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 518]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L529] int array_size = __VERIFIER_nondet_int(); [L530] COND TRUE array_size < 1 || array_size >= 2147483647 / sizeof(int) [L531] array_size = 1 [L533] int* numbers = (int*) __builtin_alloca (array_size * sizeof(int)); [L535] int i = 0; [L535] COND TRUE i < array_size [L537] numbers[i] = __VERIFIER_nondet_int() [L535] i++ [L535] COND FALSE !(i < array_size) [L539] CALL lis(numbers, array_size) [L514] int *best, *prev, i, j, max = 0; [L515] best = (int*) __builtin_alloca (sizeof(int) * N) [L516] prev = (int*) __builtin_alloca (sizeof(int) * N) [L517] i = 0 [L517] COND TRUE i < N [L518] best[i] = 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 96 locations, 25 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 7.2s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 386 SDtfs, 142 SDslu, 1027 SDs, 0 SdLazy, 327 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 126 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=91occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 26 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 112 ConstructedInterpolants, 1 QuantifiedInterpolants, 7405 SizeOfPredicates, 16 NumberOfNonLiveVariables, 240 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 10 InterpolantComputations, 6 PerfectInterpolantSequences, 2/8 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...