./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/list-ext-properties/test-0019_1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 906a4fb5 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/list-ext-properties/test-0019_1-1.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 bdb7b41689d384418a154f01910b0fd527032012 ............................................................................................................................. 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 -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/list-ext-properties/test-0019_1-1.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 bdb7b41689d384418a154f01910b0fd527032012 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.25-906a4fb [2020-10-19 18:05:35,794 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:05:35,798 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:05:35,840 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:05:35,841 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:05:35,851 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:05:35,854 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:05:35,858 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:05:35,861 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:05:35,865 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:05:35,867 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:05:35,868 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:05:35,868 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:05:35,873 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:05:35,875 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:05:35,877 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:05:35,879 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:05:35,880 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:05:35,883 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:05:35,892 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:05:35,895 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:05:35,896 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:05:35,898 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:05:35,899 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:05:35,910 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:05:35,912 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:05:35,913 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:05:35,914 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:05:35,915 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:05:35,917 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:05:35,917 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:05:35,918 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:05:35,919 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:05:35,920 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:05:35,921 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:05:35,922 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:05:35,923 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:05:35,923 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:05:35,923 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:05:35,924 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:05:35,926 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:05:35,927 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-10-19 18:05:35,962 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:05:35,962 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:05:35,964 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:05:35,964 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:05:35,964 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:05:35,965 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:05:35,965 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 18:05:35,965 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:05:35,965 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:05:35,966 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 18:05:35,966 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:05:35,966 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-19 18:05:35,967 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-19 18:05:35,967 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-19 18:05:35,967 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 18:05:35,967 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-19 18:05:35,968 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 18:05:35,968 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:05:35,968 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:05:35,969 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:05:35,969 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 18:05:35,969 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 18:05:35,969 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 18:05:35,970 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:05:35,970 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 18:05:35,970 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 18:05:35,971 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 18:05:35,971 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:05:35,971 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 -> bdb7b41689d384418a154f01910b0fd527032012 [2020-10-19 18:05:36,277 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:05:36,290 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:05:36,293 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:05:36,295 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:05:36,295 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:05:36,296 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-ext-properties/test-0019_1-1.i [2020-10-19 18:05:36,377 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3a2ddd62/268e07af71564aa6be6b6856ebf16ac0/FLAG9833bca31 [2020-10-19 18:05:36,955 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:05:36,956 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext-properties/test-0019_1-1.i [2020-10-19 18:05:36,972 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3a2ddd62/268e07af71564aa6be6b6856ebf16ac0/FLAG9833bca31 [2020-10-19 18:05:37,231 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3a2ddd62/268e07af71564aa6be6b6856ebf16ac0 [2020-10-19 18:05:37,236 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:05:37,244 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-19 18:05:37,246 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:05:37,246 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:05:37,250 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:05:37,251 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:05:37" (1/1) ... [2020-10-19 18:05:37,255 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ff8a4d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:05:37, skipping insertion in model container [2020-10-19 18:05:37,256 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:05:37" (1/1) ... [2020-10-19 18:05:37,265 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:05:37,323 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:05:37,752 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:05:37,766 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) [2020-10-19 18:05:37,767 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@46050bb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:05:37, skipping insertion in model container [2020-10-19 18:05:37,767 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:05:37,768 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2020-10-19 18:05:37,771 INFO L168 Benchmark]: Toolchain (without parser) took 532.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 951.9 MB in the beginning and 1.1 GB in the end (delta: -185.0 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. [2020-10-19 18:05:37,772 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:05:37,774 INFO L168 Benchmark]: CACSL2BoogieTranslator took 521.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 946.5 MB in the beginning and 1.1 GB in the end (delta: -190.4 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. [2020-10-19 18:05:37,776 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 521.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 946.5 MB in the beginning and 1.1 GB in the end (delta: -190.4 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 529]: 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 0.1.25-906a4fb [2020-10-19 18:05:39,679 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:05:39,682 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:05:39,730 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:05:39,731 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:05:39,739 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:05:39,742 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:05:39,746 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:05:39,749 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:05:39,753 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:05:39,755 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:05:39,757 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:05:39,757 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:05:39,761 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:05:39,762 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:05:39,764 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:05:39,766 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:05:39,767 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:05:39,770 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:05:39,779 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:05:39,781 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:05:39,782 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:05:39,785 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:05:39,786 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:05:39,801 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:05:39,801 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:05:39,801 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:05:39,802 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:05:39,803 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:05:39,806 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:05:39,806 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:05:39,809 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:05:39,810 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:05:39,812 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:05:39,813 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:05:39,816 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:05:39,817 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:05:39,818 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:05:39,818 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:05:39,819 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:05:39,820 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:05:39,821 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2020-10-19 18:05:39,864 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:05:39,865 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:05:39,867 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:05:39,868 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:05:39,868 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:05:39,868 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:05:39,868 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 18:05:39,869 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:05:39,869 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:05:39,869 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 18:05:39,870 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:05:39,870 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-19 18:05:39,870 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-19 18:05:39,871 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-19 18:05:39,871 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 18:05:39,871 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-19 18:05:39,871 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-19 18:05:39,871 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-19 18:05:39,871 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 18:05:39,872 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:05:39,873 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:05:39,873 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:05:39,873 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 18:05:39,873 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 18:05:39,873 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 18:05:39,873 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:05:39,874 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 18:05:39,874 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-19 18:05:39,874 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-19 18:05:39,874 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:05:39,874 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-19 18:05:39,874 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 -> bdb7b41689d384418a154f01910b0fd527032012 [2020-10-19 18:05:40,176 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:05:40,188 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:05:40,192 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:05:40,194 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:05:40,195 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:05:40,196 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-ext-properties/test-0019_1-1.i [2020-10-19 18:05:40,257 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d094e143/768ca731989a46649cc6db3ef925e854/FLAG4113b3256 [2020-10-19 18:05:40,747 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:05:40,748 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext-properties/test-0019_1-1.i [2020-10-19 18:05:40,761 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d094e143/768ca731989a46649cc6db3ef925e854/FLAG4113b3256 [2020-10-19 18:05:41,061 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d094e143/768ca731989a46649cc6db3ef925e854 [2020-10-19 18:05:41,065 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:05:41,072 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-19 18:05:41,073 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:05:41,074 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:05:41,077 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:05:41,078 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:05:41" (1/1) ... [2020-10-19 18:05:41,081 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ceebed5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:05:41, skipping insertion in model container [2020-10-19 18:05:41,082 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:05:41" (1/1) ... [2020-10-19 18:05:41,090 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:05:41,129 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:05:41,557 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:05:41,590 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-10-19 18:05:41,598 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:05:41,628 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:05:41,635 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 18:05:41,677 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:05:41,749 INFO L208 MainTranslator]: Completed translation [2020-10-19 18:05:41,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:05:41 WrapperNode [2020-10-19 18:05:41,752 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:05:41,753 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 18:05:41,753 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 18:05:41,754 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 18:05:41,768 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:05:41" (1/1) ... [2020-10-19 18:05:41,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:05:41" (1/1) ... [2020-10-19 18:05:41,789 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:05:41" (1/1) ... [2020-10-19 18:05:41,789 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:05:41" (1/1) ... [2020-10-19 18:05:41,813 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:05:41" (1/1) ... [2020-10-19 18:05:41,815 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:05:41" (1/1) ... [2020-10-19 18:05:41,820 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:05:41" (1/1) ... [2020-10-19 18:05:41,828 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 18:05:41,829 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 18:05:41,829 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 18:05:41,829 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 18:05:41,830 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:05:41" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 18:05:41,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-19 18:05:41,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 18:05:41,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2020-10-19 18:05:41,904 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-19 18:05:41,905 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-19 18:05:41,905 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-19 18:05:41,906 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-10-19 18:05:41,906 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-10-19 18:05:41,906 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-10-19 18:05:41,906 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_data [2020-10-19 18:05:41,907 INFO L138 BoogieDeclarations]: Found implementation of procedure free_data [2020-10-19 18:05:41,907 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-19 18:05:41,907 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-19 18:05:41,907 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-19 18:05:41,907 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-19 18:05:41,907 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-19 18:05:41,907 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-19 18:05:41,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 18:05:41,908 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-19 18:05:41,908 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-19 18:05:41,908 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-19 18:05:41,909 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-19 18:05:41,909 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-19 18:05:41,909 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-19 18:05:41,909 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-19 18:05:41,909 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-19 18:05:41,909 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-19 18:05:41,909 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-19 18:05:41,909 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-19 18:05:41,910 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-19 18:05:41,910 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-19 18:05:41,910 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-19 18:05:41,910 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-19 18:05:41,910 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-19 18:05:41,910 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-19 18:05:41,910 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-19 18:05:41,910 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-10-19 18:05:41,911 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-10-19 18:05:41,911 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-10-19 18:05:41,911 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-19 18:05:41,911 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-19 18:05:41,911 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-19 18:05:41,911 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-19 18:05:41,911 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-19 18:05:41,911 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-19 18:05:41,911 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-19 18:05:41,912 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-19 18:05:41,912 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-19 18:05:41,912 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-19 18:05:41,913 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-19 18:05:41,913 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-19 18:05:41,913 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-19 18:05:41,914 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-19 18:05:41,914 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-19 18:05:41,914 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-19 18:05:41,914 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-19 18:05:41,915 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-19 18:05:41,915 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-19 18:05:41,915 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-19 18:05:41,915 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-19 18:05:41,916 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-19 18:05:41,917 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-19 18:05:41,917 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-19 18:05:41,917 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-19 18:05:41,917 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-19 18:05:41,917 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-19 18:05:41,918 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-19 18:05:41,918 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-19 18:05:41,919 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-19 18:05:41,919 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-19 18:05:41,920 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-19 18:05:41,921 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-19 18:05:41,921 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-19 18:05:41,921 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-19 18:05:41,921 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-19 18:05:41,921 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-19 18:05:41,922 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-19 18:05:41,922 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-19 18:05:41,922 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-19 18:05:41,923 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-19 18:05:41,923 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-19 18:05:41,923 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-19 18:05:41,924 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-19 18:05:41,924 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-19 18:05:41,924 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-19 18:05:41,924 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-19 18:05:41,924 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-19 18:05:41,925 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-19 18:05:41,925 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-19 18:05:41,925 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-19 18:05:41,925 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-19 18:05:41,925 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-19 18:05:41,926 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-19 18:05:41,926 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-19 18:05:41,926 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-19 18:05:41,926 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-19 18:05:41,926 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-19 18:05:41,927 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-19 18:05:41,927 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-19 18:05:41,927 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-19 18:05:41,927 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-19 18:05:41,927 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-19 18:05:41,927 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-19 18:05:41,928 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-19 18:05:41,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-19 18:05:41,928 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-19 18:05:41,928 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-19 18:05:41,928 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-19 18:05:41,929 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-19 18:05:41,929 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-19 18:05:41,930 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-19 18:05:41,930 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-19 18:05:41,931 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-19 18:05:41,931 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-19 18:05:41,931 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-19 18:05:41,931 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-19 18:05:41,931 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-19 18:05:41,932 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-19 18:05:41,932 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-19 18:05:41,933 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-19 18:05:41,933 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-19 18:05:41,933 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-19 18:05:41,933 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-19 18:05:41,934 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-19 18:05:41,935 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_data [2020-10-19 18:05:41,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-19 18:05:41,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-19 18:05:41,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-19 18:05:41,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-19 18:05:41,940 INFO L130 BoogieDeclarations]: Found specification of procedure free_data [2020-10-19 18:05:41,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-19 18:05:41,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-19 18:05:41,941 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-19 18:05:41,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-19 18:05:41,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-19 18:05:41,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 18:05:41,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2020-10-19 18:05:41,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2020-10-19 18:05:41,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2020-10-19 18:05:42,648 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 18:05:42,649 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-19 18:05:42,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:05:42 BoogieIcfgContainer [2020-10-19 18:05:42,651 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 18:05:42,652 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 18:05:42,652 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 18:05:42,656 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 18:05:42,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 06:05:41" (1/3) ... [2020-10-19 18:05:42,657 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e4695e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:05:42, skipping insertion in model container [2020-10-19 18:05:42,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:05:41" (2/3) ... [2020-10-19 18:05:42,657 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e4695e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:05:42, skipping insertion in model container [2020-10-19 18:05:42,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:05:42" (3/3) ... [2020-10-19 18:05:42,659 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0019_1-1.i [2020-10-19 18:05:42,672 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 18:05:42,680 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 32 error locations. [2020-10-19 18:05:42,696 INFO L253 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2020-10-19 18:05:42,720 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 18:05:42,720 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-19 18:05:42,721 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 18:05:42,721 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 18:05:42,721 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 18:05:42,721 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 18:05:42,721 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 18:05:42,721 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 18:05:42,741 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-10-19 18:05:42,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-19 18:05:42,751 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:05:42,752 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:05:42,753 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr4REQUIRES_VIOLATION, alloc_dataErr9REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr8REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr7REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr6REQUIRES_VIOLATION, alloc_dataErr11REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr5REQUIRES_VIOLATION, alloc_dataErr10REQUIRES_VIOLATION, free_dataErr7REQUIRES_VIOLATION, free_dataErr8ASSERT_VIOLATIONMEMORY_FREE, free_dataErr17REQUIRES_VIOLATION, free_dataErr6REQUIRES_VIOLATION, free_dataErr9ASSERT_VIOLATIONMEMORY_FREE, free_dataErr16REQUIRES_VIOLATION, free_dataErr5REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr15REQUIRES_VIOLATION, free_dataErr4REQUIRES_VIOLATION, free_dataErr10ASSERT_VIOLATIONMEMORY_FREE, free_dataErr14REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr11ASSERT_VIOLATIONMEMORY_FREE, free_dataErr13ASSERT_VIOLATIONMEMORY_FREE, free_dataErr2REQUIRES_VIOLATION, free_dataErr12ASSERT_VIOLATIONMEMORY_FREE]=== [2020-10-19 18:05:42,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:05:42,760 INFO L82 PathProgramCache]: Analyzing trace with hash -1856804665, now seen corresponding path program 1 times [2020-10-19 18:05:42,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:05:42,775 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1975411519] [2020-10-19 18:05:42,775 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 [2020-10-19 18:05:42,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:05:42,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 14 conjunts are in the unsatisfiable core [2020-10-19 18:05:42,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:05:43,047 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 [2020-10-19 18:05:43,047 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:05:43,067 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:05:43,073 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 [2020-10-19 18:05:43,074 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-19 18:05:43,084 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:05:43,085 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:05:43,085 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2020-10-19 18:05:43,175 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:05:43,175 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2020-10-19 18:05:43,177 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:05:43,192 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:05:43,199 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2020-10-19 18:05:43,200 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-19 18:05:43,221 INFO L625 ElimStorePlain]: treesize reduction 4, result has 77.8 percent of original size [2020-10-19 18:05:43,222 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-19 18:05:43,223 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:14 [2020-10-19 18:05:43,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:05:43,250 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:05:43,313 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-19 18:05:47,618 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification that was a NOOP. DAG size: 20 [2020-10-19 18:05:48,221 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2020-10-19 18:05:48,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:05:48,246 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1975411519] [2020-10-19 18:05:48,247 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:05:48,247 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2020-10-19 18:05:48,248 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052066520] [2020-10-19 18:05:48,253 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-19 18:05:48,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:05:48,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-19 18:05:48,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=39, Unknown=1, NotChecked=0, Total=56 [2020-10-19 18:05:48,270 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 8 states. [2020-10-19 18:05:51,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:05:51,382 INFO L93 Difference]: Finished difference Result 72 states and 72 transitions. [2020-10-19 18:05:51,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-19 18:05:51,384 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 9 [2020-10-19 18:05:51,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:05:51,393 INFO L225 Difference]: With dead ends: 72 [2020-10-19 18:05:51,394 INFO L226 Difference]: Without dead ends: 69 [2020-10-19 18:05:51,396 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=28, Invalid=61, Unknown=1, NotChecked=0, Total=90 [2020-10-19 18:05:51,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-10-19 18:05:51,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-10-19 18:05:51,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-10-19 18:05:51,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 69 transitions. [2020-10-19 18:05:51,441 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 69 transitions. Word has length 9 [2020-10-19 18:05:51,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:05:51,441 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 69 transitions. [2020-10-19 18:05:51,442 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-19 18:05:51,442 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 69 transitions. [2020-10-19 18:05:51,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-19 18:05:51,443 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:05:51,443 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:05:51,652 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-19 18:05:51,653 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr4REQUIRES_VIOLATION, alloc_dataErr9REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr8REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr7REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr6REQUIRES_VIOLATION, alloc_dataErr11REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr5REQUIRES_VIOLATION, alloc_dataErr10REQUIRES_VIOLATION, free_dataErr7REQUIRES_VIOLATION, free_dataErr8ASSERT_VIOLATIONMEMORY_FREE, free_dataErr17REQUIRES_VIOLATION, free_dataErr6REQUIRES_VIOLATION, free_dataErr9ASSERT_VIOLATIONMEMORY_FREE, free_dataErr16REQUIRES_VIOLATION, free_dataErr5REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr15REQUIRES_VIOLATION, free_dataErr4REQUIRES_VIOLATION, free_dataErr10ASSERT_VIOLATIONMEMORY_FREE, free_dataErr14REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr11ASSERT_VIOLATIONMEMORY_FREE, free_dataErr13ASSERT_VIOLATIONMEMORY_FREE, free_dataErr2REQUIRES_VIOLATION, free_dataErr12ASSERT_VIOLATIONMEMORY_FREE]=== [2020-10-19 18:05:51,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:05:51,655 INFO L82 PathProgramCache]: Analyzing trace with hash -1856804666, now seen corresponding path program 1 times [2020-10-19 18:05:51,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:05:51,657 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1263701985] [2020-10-19 18:05:51,657 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 [2020-10-19 18:05:51,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:05:51,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-19 18:05:51,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:05:51,821 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 [2020-10-19 18:05:51,822 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:05:51,826 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:05:51,827 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:05:51,827 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-19 18:05:51,871 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:05:51,872 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 12 treesize of output 28 [2020-10-19 18:05:51,873 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:05:51,897 INFO L625 ElimStorePlain]: treesize reduction 14, result has 44.0 percent of original size [2020-10-19 18:05:51,898 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-19 18:05:51,898 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2020-10-19 18:05:51,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:05:51,915 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:05:51,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:05:51,941 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1263701985] [2020-10-19 18:05:51,941 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:05:51,941 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-10-19 18:05:51,942 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086136686] [2020-10-19 18:05:51,944 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-19 18:05:51,944 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:05:51,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 18:05:51,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:05:51,945 INFO L87 Difference]: Start difference. First operand 69 states and 69 transitions. Second operand 5 states. [2020-10-19 18:05:52,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:05:52,202 INFO L93 Difference]: Finished difference Result 65 states and 65 transitions. [2020-10-19 18:05:52,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 18:05:52,202 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-10-19 18:05:52,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:05:52,204 INFO L225 Difference]: With dead ends: 65 [2020-10-19 18:05:52,204 INFO L226 Difference]: Without dead ends: 65 [2020-10-19 18:05:52,205 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-19 18:05:52,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-10-19 18:05:52,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2020-10-19 18:05:52,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-10-19 18:05:52,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 65 transitions. [2020-10-19 18:05:52,214 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 65 transitions. Word has length 9 [2020-10-19 18:05:52,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:05:52,215 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 65 transitions. [2020-10-19 18:05:52,215 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-19 18:05:52,215 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 65 transitions. [2020-10-19 18:05:52,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-19 18:05:52,216 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:05:52,216 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:05:52,431 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-19 18:05:52,432 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr4REQUIRES_VIOLATION, alloc_dataErr9REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr8REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr7REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr6REQUIRES_VIOLATION, alloc_dataErr11REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr5REQUIRES_VIOLATION, alloc_dataErr10REQUIRES_VIOLATION, free_dataErr7REQUIRES_VIOLATION, free_dataErr8ASSERT_VIOLATIONMEMORY_FREE, free_dataErr17REQUIRES_VIOLATION, free_dataErr6REQUIRES_VIOLATION, free_dataErr9ASSERT_VIOLATIONMEMORY_FREE, free_dataErr16REQUIRES_VIOLATION, free_dataErr5REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr15REQUIRES_VIOLATION, free_dataErr4REQUIRES_VIOLATION, free_dataErr10ASSERT_VIOLATIONMEMORY_FREE, free_dataErr14REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr11ASSERT_VIOLATIONMEMORY_FREE, free_dataErr13ASSERT_VIOLATIONMEMORY_FREE, free_dataErr2REQUIRES_VIOLATION, free_dataErr12ASSERT_VIOLATIONMEMORY_FREE]=== [2020-10-19 18:05:52,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:05:52,433 INFO L82 PathProgramCache]: Analyzing trace with hash -1977855576, now seen corresponding path program 1 times [2020-10-19 18:05:52,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:05:52,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2090523731] [2020-10-19 18:05:52,435 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 [2020-10-19 18:05:52,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:05:52,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 17 conjunts are in the unsatisfiable core [2020-10-19 18:05:52,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:05:52,589 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 [2020-10-19 18:05:52,589 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:05:52,597 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:05:52,602 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 [2020-10-19 18:05:52,603 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-19 18:05:52,611 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:05:52,611 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:05:52,612 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2020-10-19 18:05:52,669 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:05:52,670 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2020-10-19 18:05:52,671 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:05:52,685 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:05:52,690 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2020-10-19 18:05:52,691 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-19 18:05:52,713 INFO L625 ElimStorePlain]: treesize reduction 4, result has 77.8 percent of original size [2020-10-19 18:05:52,714 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-19 18:05:52,715 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:14 [2020-10-19 18:05:52,786 INFO L441 ElimStorePlain]: Different costs {1=[|v_#valid_69|], 3=[|v_#length_54|]} [2020-10-19 18:05:52,799 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:05:52,799 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2020-10-19 18:05:52,800 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:05:52,817 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:05:52,847 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:05:52,848 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 46 [2020-10-19 18:05:52,850 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-19 18:05:52,920 INFO L625 ElimStorePlain]: treesize reduction 28, result has 42.9 percent of original size [2020-10-19 18:05:52,922 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-19 18:05:52,923 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:34, output treesize:21 [2020-10-19 18:05:52,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:05:52,940 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:05:53,000 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-19 18:05:56,429 WARN L193 SmtUtils]: Spent 561.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2020-10-19 18:05:56,431 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-19 18:05:56,464 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:05:56,464 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2020-10-19 18:05:56,465 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:05:56,483 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:05:56,483 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2020-10-19 18:05:56,484 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-19 18:05:56,521 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:05:56,533 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2020-10-19 18:05:56,533 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:44, output treesize:22 [2020-10-19 18:05:56,596 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-19 18:05:59,687 WARN L193 SmtUtils]: Spent 2.58 s on a formula simplification that was a NOOP. DAG size: 22 [2020-10-19 18:06:01,712 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|v_alloc_data_#t~malloc5.base_5| (_ BitVec 32))) (or (not (= (select |c_#valid| |v_alloc_data_#t~malloc5.base_5|) (_ bv0 1))) (bvule (bvadd |c_main_~#data~0.offset| (_ bv8 32)) (select (store |c_#length| |v_alloc_data_#t~malloc5.base_5| (_ bv4 32)) |c_main_~#data~0.base|)))) (or (forall ((v_prenex_3 (_ BitVec 32))) (not (= (select |c_#valid| v_prenex_3) (_ bv0 1)))) (bvule (bvadd |c_main_~#data~0.offset| (_ bv4 32)) (bvadd |c_main_~#data~0.offset| (_ bv8 32))))) is different from false [2020-10-19 18:06:01,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:06:01,737 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2090523731] [2020-10-19 18:06:01,737 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:06:01,737 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2020-10-19 18:06:01,737 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239450028] [2020-10-19 18:06:01,738 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-19 18:06:01,738 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:06:01,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-19 18:06:01,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=52, Unknown=2, NotChecked=14, Total=90 [2020-10-19 18:06:01,739 INFO L87 Difference]: Start difference. First operand 65 states and 65 transitions. Second operand 10 states. [2020-10-19 18:06:02,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:06:02,384 INFO L93 Difference]: Finished difference Result 63 states and 63 transitions. [2020-10-19 18:06:02,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 18:06:02,385 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 11 [2020-10-19 18:06:02,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:06:02,386 INFO L225 Difference]: With dead ends: 63 [2020-10-19 18:06:02,386 INFO L226 Difference]: Without dead ends: 63 [2020-10-19 18:06:02,387 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=30, Invalid=62, Unknown=2, NotChecked=16, Total=110 [2020-10-19 18:06:02,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-10-19 18:06:02,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2020-10-19 18:06:02,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-10-19 18:06:02,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 63 transitions. [2020-10-19 18:06:02,395 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 63 transitions. Word has length 11 [2020-10-19 18:06:02,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:06:02,395 INFO L481 AbstractCegarLoop]: Abstraction has 63 states and 63 transitions. [2020-10-19 18:06:02,395 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-19 18:06:02,396 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 63 transitions. [2020-10-19 18:06:02,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-19 18:06:02,396 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:06:02,396 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:06:02,597 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-19 18:06:02,598 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr4REQUIRES_VIOLATION, alloc_dataErr9REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr8REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr7REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr6REQUIRES_VIOLATION, alloc_dataErr11REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr5REQUIRES_VIOLATION, alloc_dataErr10REQUIRES_VIOLATION, free_dataErr7REQUIRES_VIOLATION, free_dataErr8ASSERT_VIOLATIONMEMORY_FREE, free_dataErr17REQUIRES_VIOLATION, free_dataErr6REQUIRES_VIOLATION, free_dataErr9ASSERT_VIOLATIONMEMORY_FREE, free_dataErr16REQUIRES_VIOLATION, free_dataErr5REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr0REQUIRES_VIOLATION, free_dataErr15REQUIRES_VIOLATION, free_dataErr4REQUIRES_VIOLATION, free_dataErr10ASSERT_VIOLATIONMEMORY_FREE, free_dataErr14REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr11ASSERT_VIOLATIONMEMORY_FREE, free_dataErr13ASSERT_VIOLATIONMEMORY_FREE, free_dataErr2REQUIRES_VIOLATION, free_dataErr12ASSERT_VIOLATIONMEMORY_FREE]=== [2020-10-19 18:06:02,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:06:02,599 INFO L82 PathProgramCache]: Analyzing trace with hash 1951303370, now seen corresponding path program 1 times [2020-10-19 18:06:02,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:06:02,600 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1081263497] [2020-10-19 18:06:02,600 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 [2020-10-19 18:06:02,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:06:02,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-19 18:06:02,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:06:02,712 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 [2020-10-19 18:06:02,712 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:06:02,714 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:06:02,715 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:06:02,715 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-19 18:06:02,730 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2020-10-19 18:06:02,731 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:06:02,737 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:06:02,738 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:06:02,738 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:11 [2020-10-19 18:06:02,772 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:06:02,772 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 61 [2020-10-19 18:06:02,774 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:06:02,797 INFO L625 ElimStorePlain]: treesize reduction 26, result has 46.9 percent of original size [2020-10-19 18:06:02,797 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:06:02,798 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:23 [2020-10-19 18:06:02,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1081263497] [2020-10-19 18:06:02,820 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 18:06:02,820 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [792601854] [2020-10-19 18:06:02,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-19 18:06:03,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:06:03,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-19 18:06:03,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:06:03,087 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 [2020-10-19 18:06:03,087 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:06:03,094 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:06:03,094 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:06:03,095 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-10-19 18:06:03,127 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2020-10-19 18:06:03,127 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:06:03,140 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:06:03,141 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:06:03,141 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:27, output treesize:20 [2020-10-19 18:06:03,266 INFO L350 Elim1Store]: treesize reduction 12, result has 86.2 percent of original size [2020-10-19 18:06:03,266 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 30 treesize of output 93 [2020-10-19 18:06:03,268 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-19 18:06:03,270 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 18:06:03,270 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 1) [2020-10-19 18:06:03,271 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [803606894] [2020-10-19 18:06:03,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:06:03,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:06:03,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-19 18:06:03,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:06:03,381 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 [2020-10-19 18:06:03,381 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:06:03,383 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:06:03,384 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:06:03,384 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-19 18:06:03,397 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2020-10-19 18:06:03,397 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:06:03,408 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:06:03,409 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:06:03,410 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:11 [2020-10-19 18:06:03,446 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:06:03,447 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 61 [2020-10-19 18:06:03,449 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-19 18:06:03,451 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 1) [2020-10-19 18:06:03,451 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:06:03,451 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-10-19 18:06:03,452 ERROR L205 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2020-10-19 18:06:03,452 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-19 18:06:04,072 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3,6 cvc4 --incremental --print-success --lang smt --rewrite-divk,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:06:04,085 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-19 18:06:04,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 06:06:04 BoogieIcfgContainer [2020-10-19 18:06:04,086 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 18:06:04,086 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:06:04,086 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:06:04,087 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:06:04,087 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:05:42" (3/4) ... [2020-10-19 18:06:04,090 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-19 18:06:04,090 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:06:04,091 INFO L168 Benchmark]: Toolchain (without parser) took 23025.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 210.8 MB). Free memory was 953.2 MB in the beginning and 1.0 GB in the end (delta: -47.9 MB). Peak memory consumption was 162.9 MB. Max. memory is 11.5 GB. [2020-10-19 18:06:04,096 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:06:04,098 INFO L168 Benchmark]: CACSL2BoogieTranslator took 679.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 947.9 MB in the beginning and 1.1 GB in the end (delta: -171.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. [2020-10-19 18:06:04,099 INFO L168 Benchmark]: Boogie Preprocessor took 75.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:06:04,100 INFO L168 Benchmark]: RCFGBuilder took 822.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 57.7 MB). Peak memory consumption was 57.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:06:04,103 INFO L168 Benchmark]: TraceAbstraction took 21433.93 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 65.0 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 54.3 MB). Peak memory consumption was 119.3 MB. Max. memory is 11.5 GB. [2020-10-19 18:06:04,103 INFO L168 Benchmark]: Witness Printer took 3.69 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:06:04,111 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 679.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 947.9 MB in the beginning and 1.1 GB in the end (delta: -171.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 75.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 822.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 57.7 MB). Peak memory consumption was 57.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 21433.93 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 65.0 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 54.3 MB). Peak memory consumption was 119.3 MB. Max. memory is 11.5 GB. * Witness Printer took 3.69 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 531]: 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: [L546] TData data; [L547] CALL alloc_data(&data) [L529] pdata->lo = (int *)malloc(sizeof(int)) [L530] pdata->hi = (int *)malloc(sizeof(int)) [L531] EXPR pdata->lo [L531] *(pdata->lo) = 4 - StatisticsResult: Ultimate Automizer benchmark data CFG has 12 procedures, 100 locations, 32 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 21.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 4.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 154 SDtfs, 150 SDslu, 347 SDs, 0 SdLazy, 430 SolverSat, 25 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 3.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 35 SyntacticMatches, 4 SemanticMatches, 21 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 13.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 14.6s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 52 ConstructedInterpolants, 9 QuantifiedInterpolants, 3724 SizeOfPredicates, 19 NumberOfNonLiveVariables, 244 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...