./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 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/list-ext-properties/test-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 -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/list-ext-properties/test-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 0.1.25-9a8b2e8 [2020-10-20 05:58:26,235 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 05:58:26,237 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 05:58:26,260 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 05:58:26,261 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 05:58:26,262 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 05:58:26,263 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 05:58:26,265 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 05:58:26,267 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 05:58:26,268 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 05:58:26,269 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 05:58:26,270 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 05:58:26,270 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 05:58:26,272 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 05:58:26,273 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 05:58:26,274 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 05:58:26,275 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 05:58:26,276 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 05:58:26,277 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 05:58:26,279 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 05:58:26,280 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 05:58:26,282 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 05:58:26,283 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 05:58:26,283 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 05:58:26,286 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 05:58:26,286 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 05:58:26,287 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 05:58:26,287 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 05:58:26,288 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 05:58:26,289 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 05:58:26,289 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 05:58:26,290 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 05:58:26,295 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 05:58:26,296 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 05:58:26,297 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 05:58:26,297 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 05:58:26,298 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 05:58:26,298 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 05:58:26,299 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 05:58:26,300 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 05:58:26,300 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 05:58:26,301 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-10-20 05:58:26,323 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 05:58:26,324 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 05:58:26,325 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 05:58:26,325 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 05:58:26,326 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 05:58:26,326 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 05:58:26,326 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 05:58:26,326 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 05:58:26,326 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 05:58:26,327 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 05:58:26,327 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 05:58:26,327 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-20 05:58:26,327 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-20 05:58:26,328 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-20 05:58:26,328 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 05:58:26,328 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-20 05:58:26,328 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 05:58:26,329 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 05:58:26,329 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 05:58:26,329 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 05:58:26,329 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 05:58:26,330 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 05:58:26,330 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 05:58:26,330 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 05:58:26,331 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 05:58:26,331 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 05:58:26,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 05:58:26,332 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 05:58:26,332 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 [2020-10-20 05:58:26,553 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 05:58:26,566 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 05:58:26,570 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 05:58:26,571 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 05:58:26,572 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 05:58:26,573 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-ext-properties/test-0019_1-1.i [2020-10-20 05:58:26,651 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3918f15eb/fd7eb7247ce24823a526d2dc7a32db82/FLAG4ad8bb944 [2020-10-20 05:58:27,167 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 05:58:27,168 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext-properties/test-0019_1-1.i [2020-10-20 05:58:27,185 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3918f15eb/fd7eb7247ce24823a526d2dc7a32db82/FLAG4ad8bb944 [2020-10-20 05:58:27,463 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3918f15eb/fd7eb7247ce24823a526d2dc7a32db82 [2020-10-20 05:58:27,467 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 05:58:27,473 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-20 05:58:27,474 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 05:58:27,475 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 05:58:27,478 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 05:58:27,479 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:58:27" (1/1) ... [2020-10-20 05:58:27,482 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c362d4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:58:27, skipping insertion in model container [2020-10-20 05:58:27,482 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:58:27" (1/1) ... [2020-10-20 05:58:27,490 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 05:58:27,544 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 05:58:27,978 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 05:58:27,994 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2020-10-20 05:58:27,996 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@812f871 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:58:27, skipping insertion in model container [2020-10-20 05:58:27,996 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 05:58:27,997 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2020-10-20 05:58:28,000 INFO L168 Benchmark]: Toolchain (without parser) took 530.24 ms. Allocated memory was 38.3 MB in the beginning and 44.0 MB in the end (delta: 5.8 MB). Free memory was 18.4 MB in the beginning and 25.0 MB in the end (delta: -6.6 MB). Peak memory consumption was 9.8 MB. Max. memory is 14.3 GB. [2020-10-20 05:58:28,002 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 37.2 MB. Free memory was 14.2 MB in the beginning and 14.1 MB in the end (delta: 45.8 kB). Peak memory consumption was 45.8 kB. Max. memory is 14.3 GB. [2020-10-20 05:58:28,004 INFO L168 Benchmark]: CACSL2BoogieTranslator took 522.31 ms. Allocated memory was 38.3 MB in the beginning and 44.0 MB in the end (delta: 5.8 MB). Free memory was 17.6 MB in the beginning and 25.0 MB in the end (delta: -7.5 MB). Peak memory consumption was 9.0 MB. Max. memory is 14.3 GB. [2020-10-20 05:58:28,008 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 37.2 MB. Free memory was 14.2 MB in the beginning and 14.1 MB in the end (delta: 45.8 kB). Peak memory consumption was 45.8 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 522.31 ms. Allocated memory was 38.3 MB in the beginning and 44.0 MB in the end (delta: 5.8 MB). Free memory was 17.6 MB in the beginning and 25.0 MB in the end (delta: -7.5 MB). Peak memory consumption was 9.0 MB. Max. memory is 14.3 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 0.1.25-9a8b2e8 [2020-10-20 05:58:29,978 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 05:58:29,981 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 05:58:30,022 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 05:58:30,022 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 05:58:30,036 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 05:58:30,038 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 05:58:30,041 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 05:58:30,044 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 05:58:30,046 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 05:58:30,049 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 05:58:30,051 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 05:58:30,051 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 05:58:30,056 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 05:58:30,057 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 05:58:30,058 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 05:58:30,060 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 05:58:30,062 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 05:58:30,063 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 05:58:30,066 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 05:58:30,067 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 05:58:30,070 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 05:58:30,071 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 05:58:30,077 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 05:58:30,080 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 05:58:30,080 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 05:58:30,081 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 05:58:30,082 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 05:58:30,082 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 05:58:30,083 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 05:58:30,083 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 05:58:30,084 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 05:58:30,085 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 05:58:30,086 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 05:58:30,087 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 05:58:30,087 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 05:58:30,088 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 05:58:30,088 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 05:58:30,088 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 05:58:30,089 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 05:58:30,090 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 05:58:30,091 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2020-10-20 05:58:30,121 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 05:58:30,121 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 05:58:30,122 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 05:58:30,123 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 05:58:30,123 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 05:58:30,123 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 05:58:30,123 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 05:58:30,124 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 05:58:30,124 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 05:58:30,124 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 05:58:30,124 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 05:58:30,125 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-20 05:58:30,125 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-20 05:58:30,125 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-20 05:58:30,125 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 05:58:30,126 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-20 05:58:30,126 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-20 05:58:30,126 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-20 05:58:30,126 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 05:58:30,127 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 05:58:30,127 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 05:58:30,127 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 05:58:30,127 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 05:58:30,128 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 05:58:30,128 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 05:58:30,128 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 05:58:30,128 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 05:58:30,129 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-20 05:58:30,129 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-20 05:58:30,129 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 05:58:30,129 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-20 05:58:30,130 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 [2020-10-20 05:58:30,334 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 05:58:30,346 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 05:58:30,350 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 05:58:30,352 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 05:58:30,352 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 05:58:30,353 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-ext-properties/test-0019_1-1.i [2020-10-20 05:58:30,416 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3d0b7895/eba2efe563d340018ce084c5b0452412/FLAG17874e041 [2020-10-20 05:58:30,915 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 05:58:30,916 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext-properties/test-0019_1-1.i [2020-10-20 05:58:30,930 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3d0b7895/eba2efe563d340018ce084c5b0452412/FLAG17874e041 [2020-10-20 05:58:31,199 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3d0b7895/eba2efe563d340018ce084c5b0452412 [2020-10-20 05:58:31,202 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 05:58:31,208 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-20 05:58:31,209 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 05:58:31,209 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 05:58:31,213 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 05:58:31,214 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:58:31" (1/1) ... [2020-10-20 05:58:31,217 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36f3c9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:58:31, skipping insertion in model container [2020-10-20 05:58:31,217 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:58:31" (1/1) ... [2020-10-20 05:58:31,225 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 05:58:31,271 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 05:58:31,681 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 05:58:31,708 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-10-20 05:58:31,722 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 05:58:31,783 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 05:58:31,796 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 05:58:31,864 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 05:58:31,939 INFO L208 MainTranslator]: Completed translation [2020-10-20 05:58:31,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:58:31 WrapperNode [2020-10-20 05:58:31,940 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 05:58:31,941 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 05:58:31,941 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 05:58:31,941 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 05:58:31,956 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:58:31" (1/1) ... [2020-10-20 05:58:31,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:58:31" (1/1) ... [2020-10-20 05:58:31,976 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:58:31" (1/1) ... [2020-10-20 05:58:31,976 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:58:31" (1/1) ... [2020-10-20 05:58:32,001 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:58:31" (1/1) ... [2020-10-20 05:58:32,003 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:58:31" (1/1) ... [2020-10-20 05:58:32,009 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:58:31" (1/1) ... [2020-10-20 05:58:32,016 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 05:58:32,017 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 05:58:32,018 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 05:58:32,018 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 05:58:32,019 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:58:31" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 05:58:32,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-20 05:58:32,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 05:58:32,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2020-10-20 05:58:32,083 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-20 05:58:32,084 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-20 05:58:32,084 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-20 05:58:32,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-10-20 05:58:32,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-10-20 05:58:32,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-10-20 05:58:32,085 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_data [2020-10-20 05:58:32,086 INFO L138 BoogieDeclarations]: Found implementation of procedure free_data [2020-10-20 05:58:32,086 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-20 05:58:32,087 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-20 05:58:32,087 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-20 05:58:32,087 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-20 05:58:32,087 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-20 05:58:32,088 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-20 05:58:32,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 05:58:32,089 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-20 05:58:32,089 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-20 05:58:32,090 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-20 05:58:32,090 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-20 05:58:32,090 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-20 05:58:32,090 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-20 05:58:32,091 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-20 05:58:32,091 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-20 05:58:32,091 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-20 05:58:32,091 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-20 05:58:32,091 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-20 05:58:32,092 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-20 05:58:32,092 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-20 05:58:32,092 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-20 05:58:32,092 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-20 05:58:32,092 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-20 05:58:32,093 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-20 05:58:32,093 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-20 05:58:32,093 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-10-20 05:58:32,093 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-10-20 05:58:32,093 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-10-20 05:58:32,094 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-20 05:58:32,094 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-20 05:58:32,094 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-20 05:58:32,096 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-20 05:58:32,096 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-20 05:58:32,096 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-20 05:58:32,096 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-20 05:58:32,097 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-20 05:58:32,097 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-20 05:58:32,097 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-20 05:58:32,098 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-20 05:58:32,098 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-20 05:58:32,098 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-20 05:58:32,098 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-20 05:58:32,099 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-20 05:58:32,099 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-20 05:58:32,099 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-20 05:58:32,099 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-20 05:58:32,100 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-20 05:58:32,100 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-20 05:58:32,100 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-20 05:58:32,101 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-20 05:58:32,102 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-20 05:58:32,102 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-20 05:58:32,102 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-20 05:58:32,102 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-20 05:58:32,103 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-20 05:58:32,104 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-20 05:58:32,104 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-20 05:58:32,105 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-20 05:58:32,105 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-20 05:58:32,106 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-20 05:58:32,106 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-20 05:58:32,106 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-20 05:58:32,107 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-20 05:58:32,107 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-20 05:58:32,107 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-20 05:58:32,107 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-20 05:58:32,107 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-20 05:58:32,107 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-20 05:58:32,108 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-20 05:58:32,108 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-20 05:58:32,108 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-20 05:58:32,108 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-20 05:58:32,108 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-20 05:58:32,109 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-20 05:58:32,109 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-20 05:58:32,109 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-20 05:58:32,109 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-20 05:58:32,109 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-20 05:58:32,110 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-20 05:58:32,110 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-20 05:58:32,110 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-20 05:58:32,110 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-20 05:58:32,111 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-20 05:58:32,111 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-20 05:58:32,111 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-20 05:58:32,111 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-20 05:58:32,111 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-20 05:58:32,112 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-20 05:58:32,112 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-20 05:58:32,112 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-20 05:58:32,112 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-20 05:58:32,112 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-20 05:58:32,113 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-20 05:58:32,113 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-20 05:58:32,113 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-20 05:58:32,113 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-20 05:58:32,113 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-20 05:58:32,114 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-20 05:58:32,114 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-20 05:58:32,114 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-20 05:58:32,115 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-20 05:58:32,116 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-20 05:58:32,123 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-20 05:58:32,123 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-20 05:58:32,123 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-20 05:58:32,124 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-20 05:58:32,124 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-20 05:58:32,125 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-20 05:58:32,125 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-20 05:58:32,125 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-20 05:58:32,126 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-20 05:58:32,126 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-20 05:58:32,126 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-20 05:58:32,127 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_data [2020-10-20 05:58:32,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-20 05:58:32,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-20 05:58:32,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-20 05:58:32,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-20 05:58:32,132 INFO L130 BoogieDeclarations]: Found specification of procedure free_data [2020-10-20 05:58:32,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-20 05:58:32,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 05:58:32,133 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-20 05:58:32,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-20 05:58:32,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-20 05:58:32,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 05:58:32,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2020-10-20 05:58:32,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2020-10-20 05:58:32,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2020-10-20 05:58:32,883 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 05:58:32,884 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-20 05:58:32,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:58:32 BoogieIcfgContainer [2020-10-20 05:58:32,886 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 05:58:32,887 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 05:58:32,887 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 05:58:32,891 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 05:58:32,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 05:58:31" (1/3) ... [2020-10-20 05:58:32,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@454157ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:58:32, skipping insertion in model container [2020-10-20 05:58:32,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:58:31" (2/3) ... [2020-10-20 05:58:32,893 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@454157ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:58:32, skipping insertion in model container [2020-10-20 05:58:32,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:58:32" (3/3) ... [2020-10-20 05:58:32,895 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0019_1-1.i [2020-10-20 05:58:32,907 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 05:58:32,914 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 32 error locations. [2020-10-20 05:58:32,928 INFO L253 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2020-10-20 05:58:32,948 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 05:58:32,948 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-20 05:58:32,948 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 05:58:32,948 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 05:58:32,949 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 05:58:32,949 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 05:58:32,949 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 05:58:32,949 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 05:58:32,967 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-10-20 05:58:32,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-20 05:58:32,978 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:58:32,979 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:58:32,979 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]=== [2020-10-20 05:58:32,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:58:32,986 INFO L82 PathProgramCache]: Analyzing trace with hash -1856804665, now seen corresponding path program 1 times [2020-10-20 05:58:32,999 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:58:33,000 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [944286224] [2020-10-20 05:58:33,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-20 05:58:33,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:58:33,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 14 conjunts are in the unsatisfiable core [2020-10-20 05:58:33,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:58:33,267 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-10-20 05:58:33,268 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:58:33,287 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:58:33,299 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-10-20 05:58:33,299 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-20 05:58:33,326 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:58:33,327 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:58:33,327 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2020-10-20 05:58:33,410 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:58:33,411 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 [2020-10-20 05:58:33,412 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:58:33,428 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:58:33,435 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 [2020-10-20 05:58:33,436 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-20 05:58:33,458 INFO L625 ElimStorePlain]: treesize reduction 4, result has 77.8 percent of original size [2020-10-20 05:58:33,459 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-20 05:58:33,459 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:14 [2020-10-20 05:58:33,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:58:33,486 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:58:33,549 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-20 05:58:38,798 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2020-10-20 05:58:40,830 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_prenex_1 (_ BitVec 32))) (or (not (= (_ bv0 1) (select |c_#valid| v_prenex_1))) (bvule (bvadd |c_main_~#data~0.offset| (_ bv4 32)) (select (store |c_#length| v_prenex_1 (_ bv4 32)) |c_main_~#data~0.base|)))) (or (forall ((|v_alloc_data_#t~malloc5.base_3| (_ BitVec 32))) (not (= (_ bv0 1) (select |c_#valid| |v_alloc_data_#t~malloc5.base_3|)))) (bvule |c_main_~#data~0.offset| (bvadd |c_main_~#data~0.offset| (_ bv4 32))))) is different from false [2020-10-20 05:58:40,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:58:40,860 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [944286224] [2020-10-20 05:58:40,861 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:58:40,861 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2020-10-20 05:58:40,862 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302516260] [2020-10-20 05:58:40,867 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-20 05:58:40,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:58:40,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-20 05:58:40,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=29, Unknown=2, NotChecked=10, Total=56 [2020-10-20 05:58:40,882 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 8 states. [2020-10-20 05:58:41,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:58:41,779 INFO L93 Difference]: Finished difference Result 72 states and 72 transitions. [2020-10-20 05:58:41,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 05:58:41,781 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 9 [2020-10-20 05:58:41,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:58:41,792 INFO L225 Difference]: With dead ends: 72 [2020-10-20 05:58:41,792 INFO L226 Difference]: Without dead ends: 69 [2020-10-20 05:58:41,794 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=27, Invalid=47, Unknown=2, NotChecked=14, Total=90 [2020-10-20 05:58:41,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-10-20 05:58:41,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-10-20 05:58:41,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-10-20 05:58:41,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 69 transitions. [2020-10-20 05:58:41,856 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 69 transitions. Word has length 9 [2020-10-20 05:58:41,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:58:41,857 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 69 transitions. [2020-10-20 05:58:41,857 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-20 05:58:41,857 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 69 transitions. [2020-10-20 05:58:41,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-20 05:58:41,858 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:58:41,858 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:58:42,070 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-20 05:58:42,071 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]=== [2020-10-20 05:58:42,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:58:42,072 INFO L82 PathProgramCache]: Analyzing trace with hash -1856804666, now seen corresponding path program 1 times [2020-10-20 05:58:42,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:58:42,073 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1649703817] [2020-10-20 05:58:42,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-20 05:58:42,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:58:42,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-20 05:58:42,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:58:42,225 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-10-20 05:58:42,225 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:58:42,232 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:58:42,232 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:58:42,232 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-20 05:58:42,278 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:58:42,279 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 [2020-10-20 05:58:42,280 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:58:42,301 INFO L625 ElimStorePlain]: treesize reduction 14, result has 44.0 percent of original size [2020-10-20 05:58:42,303 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-20 05:58:42,303 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2020-10-20 05:58:42,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:58:42,318 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:58:42,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:58:42,365 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1649703817] [2020-10-20 05:58:42,365 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:58:42,365 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-10-20 05:58:42,365 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005737453] [2020-10-20 05:58:42,367 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 05:58:42,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:58:42,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 05:58:42,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 05:58:42,368 INFO L87 Difference]: Start difference. First operand 69 states and 69 transitions. Second operand 5 states. [2020-10-20 05:58:42,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:58:42,610 INFO L93 Difference]: Finished difference Result 65 states and 65 transitions. [2020-10-20 05:58:42,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 05:58:42,611 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-10-20 05:58:42,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:58:42,612 INFO L225 Difference]: With dead ends: 65 [2020-10-20 05:58:42,612 INFO L226 Difference]: Without dead ends: 65 [2020-10-20 05:58:42,613 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 [2020-10-20 05:58:42,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-10-20 05:58:42,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2020-10-20 05:58:42,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-10-20 05:58:42,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 65 transitions. [2020-10-20 05:58:42,622 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 65 transitions. Word has length 9 [2020-10-20 05:58:42,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:58:42,623 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 65 transitions. [2020-10-20 05:58:42,623 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 05:58:42,623 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 65 transitions. [2020-10-20 05:58:42,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-20 05:58:42,624 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:58:42,624 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:58:42,834 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-20 05:58:42,847 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]=== [2020-10-20 05:58:42,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:58:42,847 INFO L82 PathProgramCache]: Analyzing trace with hash -1977855576, now seen corresponding path program 1 times [2020-10-20 05:58:42,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:58:42,848 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1548504106] [2020-10-20 05:58:42,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-10-20 05:58:42,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:58:42,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 17 conjunts are in the unsatisfiable core [2020-10-20 05:58:42,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:58:43,004 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-10-20 05:58:43,005 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:58:43,013 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:58:43,017 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-10-20 05:58:43,018 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-20 05:58:43,026 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:58:43,053 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:58:43,053 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2020-10-20 05:58:43,104 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:58:43,105 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 [2020-10-20 05:58:43,105 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:58:43,119 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:58:43,124 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 [2020-10-20 05:58:43,125 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-20 05:58:43,143 INFO L625 ElimStorePlain]: treesize reduction 4, result has 77.8 percent of original size [2020-10-20 05:58:43,144 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-20 05:58:43,145 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:14 [2020-10-20 05:58:43,200 INFO L441 ElimStorePlain]: Different costs {1=[|v_#valid_69|], 3=[|v_#length_54|]} [2020-10-20 05:58:43,212 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:58:43,213 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 [2020-10-20 05:58:43,214 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:58:43,230 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:58:43,260 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:58:43,261 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 [2020-10-20 05:58:43,263 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-20 05:58:43,298 INFO L625 ElimStorePlain]: treesize reduction 28, result has 42.9 percent of original size [2020-10-20 05:58:43,299 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. [2020-10-20 05:58:43,300 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:34, output treesize:21 [2020-10-20 05:58:43,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:58:43,314 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:58:43,375 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-20 05:58:45,730 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2020-10-20 05:58:45,733 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-20 05:58:45,768 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:58:45,769 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 [2020-10-20 05:58:45,771 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:58:45,782 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:58:45,783 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 [2020-10-20 05:58:45,785 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-20 05:58:45,819 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:58:45,830 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. [2020-10-20 05:58:45,830 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:44, output treesize:22 [2020-10-20 05:58:45,902 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-20 05:58:49,059 WARN L193 SmtUtils]: Spent 2.24 s on a formula simplification that was a NOOP. DAG size: 22 [2020-10-20 05:58:49,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:58:49,339 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1548504106] [2020-10-20 05:58:49,339 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:58:49,339 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2020-10-20 05:58:49,340 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116093423] [2020-10-20 05:58:49,340 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-20 05:58:49,340 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:58:49,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-20 05:58:49,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=66, Unknown=1, NotChecked=0, Total=90 [2020-10-20 05:58:49,341 INFO L87 Difference]: Start difference. First operand 65 states and 65 transitions. Second operand 10 states. [2020-10-20 05:58:50,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:58:50,162 INFO L93 Difference]: Finished difference Result 63 states and 63 transitions. [2020-10-20 05:58:50,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 05:58:50,162 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 11 [2020-10-20 05:58:50,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:58:50,164 INFO L225 Difference]: With dead ends: 63 [2020-10-20 05:58:50,164 INFO L226 Difference]: Without dead ends: 63 [2020-10-20 05:58:50,164 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=31, Invalid=78, Unknown=1, NotChecked=0, Total=110 [2020-10-20 05:58:50,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-10-20 05:58:50,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2020-10-20 05:58:50,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-10-20 05:58:50,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 63 transitions. [2020-10-20 05:58:50,172 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 63 transitions. Word has length 11 [2020-10-20 05:58:50,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:58:50,172 INFO L481 AbstractCegarLoop]: Abstraction has 63 states and 63 transitions. [2020-10-20 05:58:50,172 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-20 05:58:50,172 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 63 transitions. [2020-10-20 05:58:50,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-20 05:58:50,173 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:58:50,173 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:58:50,379 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-20 05:58:50,381 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]=== [2020-10-20 05:58:50,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:58:50,382 INFO L82 PathProgramCache]: Analyzing trace with hash 1951303370, now seen corresponding path program 1 times [2020-10-20 05:58:50,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:58:50,383 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1877428115] [2020-10-20 05:58:50,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-10-20 05:58:50,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:58:50,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-20 05:58:50,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:58:50,524 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-10-20 05:58:50,524 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:58:50,525 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:58:50,526 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:58:50,526 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-20 05:58:50,537 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 [2020-10-20 05:58:50,538 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:58:50,544 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:58:50,545 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:58:50,545 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:11 [2020-10-20 05:58:50,578 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:58:50,579 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 [2020-10-20 05:58:50,580 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:58:50,602 INFO L625 ElimStorePlain]: treesize reduction 26, result has 46.9 percent of original size [2020-10-20 05:58:50,603 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:58:50,603 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:23 [2020-10-20 05:58:50,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1877428115] [2020-10-20 05:58:50,624 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 05:58:50,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1572392618] [2020-10-20 05:58:50,625 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 [2020-10-20 05:58:50,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:58:50,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-20 05:58:50,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:58:50,906 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-10-20 05:58:50,907 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:58:50,912 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:58:50,912 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:58:50,913 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-10-20 05:58:50,943 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 [2020-10-20 05:58:50,943 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:58:50,954 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:58:50,955 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:58:50,956 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:27, output treesize:20 [2020-10-20 05:58:51,078 INFO L350 Elim1Store]: treesize reduction 12, result has 86.2 percent of original size [2020-10-20 05:58:51,079 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 [2020-10-20 05:58:51,080 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-20 05:58:51,081 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 05:58:51,083 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 1) [2020-10-20 05:58:51,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1754928968] [2020-10-20 05:58:51,083 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 [2020-10-20 05:58:51,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:58:51,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-20 05:58:51,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:58:51,216 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-10-20 05:58:51,216 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:58:51,218 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:58:51,219 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:58:51,219 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-20 05:58:51,225 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 [2020-10-20 05:58:51,225 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:58:51,232 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:58:51,233 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:58:51,233 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:11 [2020-10-20 05:58:51,258 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:58:51,259 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 [2020-10-20 05:58:51,261 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-20 05:58:51,261 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 1) [2020-10-20 05:58:51,262 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:58:51,262 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-10-20 05:58:51,262 ERROR L205 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2020-10-20 05:58:51,262 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 05:58:51,875 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 [2020-10-20 05:58:51,889 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-20 05:58:51,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 05:58:51 BoogieIcfgContainer [2020-10-20 05:58:51,890 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 05:58:51,890 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 05:58:51,890 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 05:58:51,890 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 05:58:51,891 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:58:32" (3/4) ... [2020-10-20 05:58:51,894 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 05:58:51,894 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 05:58:51,896 INFO L168 Benchmark]: Toolchain (without parser) took 20692.36 ms. Allocated memory was 35.1 MB in the beginning and 73.9 MB in the end (delta: 38.8 MB). Free memory was 8.7 MB in the beginning and 25.3 MB in the end (delta: -16.6 MB). Peak memory consumption was 22.2 MB. Max. memory is 14.3 GB. [2020-10-20 05:58:51,897 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 35.1 MB. Free memory was 15.3 MB in the beginning and 15.2 MB in the end (delta: 73.5 kB). Peak memory consumption was 73.5 kB. Max. memory is 14.3 GB. [2020-10-20 05:58:51,897 INFO L168 Benchmark]: CACSL2BoogieTranslator took 731.49 ms. Allocated memory was 35.1 MB in the beginning and 46.7 MB in the end (delta: 11.5 MB). Free memory was 7.8 MB in the beginning and 23.1 MB in the end (delta: -15.2 MB). Peak memory consumption was 8.9 MB. Max. memory is 14.3 GB. [2020-10-20 05:58:51,898 INFO L168 Benchmark]: Boogie Preprocessor took 76.03 ms. Allocated memory is still 46.7 MB. Free memory was 23.1 MB in the beginning and 19.6 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 14.3 GB. [2020-10-20 05:58:51,899 INFO L168 Benchmark]: RCFGBuilder took 868.72 ms. Allocated memory was 46.7 MB in the beginning and 49.8 MB in the end (delta: 3.1 MB). Free memory was 19.6 MB in the beginning and 25.1 MB in the end (delta: -5.5 MB). Peak memory consumption was 14.4 MB. Max. memory is 14.3 GB. [2020-10-20 05:58:51,900 INFO L168 Benchmark]: TraceAbstraction took 19002.47 ms. Allocated memory was 49.8 MB in the beginning and 73.9 MB in the end (delta: 24.1 MB). Free memory was 24.3 MB in the beginning and 26.2 MB in the end (delta: -1.9 MB). Peak memory consumption was 22.2 MB. Max. memory is 14.3 GB. [2020-10-20 05:58:51,900 INFO L168 Benchmark]: Witness Printer took 4.42 ms. Allocated memory is still 73.9 MB. Free memory was 26.2 MB in the beginning and 25.3 MB in the end (delta: 849.2 kB). Peak memory consumption was 849.2 kB. Max. memory is 14.3 GB. [2020-10-20 05:58:51,905 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 35.1 MB. Free memory was 15.3 MB in the beginning and 15.2 MB in the end (delta: 73.5 kB). Peak memory consumption was 73.5 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 731.49 ms. Allocated memory was 35.1 MB in the beginning and 46.7 MB in the end (delta: 11.5 MB). Free memory was 7.8 MB in the beginning and 23.1 MB in the end (delta: -15.2 MB). Peak memory consumption was 8.9 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 76.03 ms. Allocated memory is still 46.7 MB. Free memory was 23.1 MB in the beginning and 19.6 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 14.3 GB. * RCFGBuilder took 868.72 ms. Allocated memory was 46.7 MB in the beginning and 49.8 MB in the end (delta: 3.1 MB). Free memory was 19.6 MB in the beginning and 25.1 MB in the end (delta: -5.5 MB). Peak memory consumption was 14.4 MB. Max. memory is 14.3 GB. * TraceAbstraction took 19002.47 ms. Allocated memory was 49.8 MB in the beginning and 73.9 MB in the end (delta: 24.1 MB). Free memory was 24.3 MB in the beginning and 26.2 MB in the end (delta: -1.9 MB). Peak memory consumption was 22.2 MB. Max. memory is 14.3 GB. * Witness Printer took 4.42 ms. Allocated memory is still 73.9 MB. Free memory was 26.2 MB in the beginning and 25.3 MB in the end (delta: 849.2 kB). Peak memory consumption was 849.2 kB. Max. memory is 14.3 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: 18.9s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 155 SDtfs, 150 SDslu, 349 SDs, 0 SdLazy, 427 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 35 SyntacticMatches, 4 SemanticMatches, 21 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 13.5s 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, 14.2s 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...