./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/array-memsafety/lis_unsafe.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/array-memsafety/lis_unsafe.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 22d1ff4f4fd6702e3a4a8affc05625a9c9bb8113 ............................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/array-memsafety/lis_unsafe.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 22d1ff4f4fd6702e3a4a8affc05625a9c9bb8113 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 05:50:00,829 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 05:50:00,832 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 05:50:00,855 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 05:50:00,856 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 05:50:00,857 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 05:50:00,858 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 05:50:00,860 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 05:50:00,862 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 05:50:00,863 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 05:50:00,864 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 05:50:00,865 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 05:50:00,866 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 05:50:00,867 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 05:50:00,868 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 05:50:00,869 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 05:50:00,870 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 05:50:00,871 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 05:50:00,872 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 05:50:00,875 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 05:50:00,877 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 05:50:00,878 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 05:50:00,879 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 05:50:00,880 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 05:50:00,882 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 05:50:00,883 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 05:50:00,883 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 05:50:00,884 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 05:50:00,885 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 05:50:00,886 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 05:50:00,886 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 05:50:00,887 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 05:50:00,888 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 05:50:00,888 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 05:50:00,889 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 05:50:00,890 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 05:50:00,891 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 05:50:00,891 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 05:50:00,891 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 05:50:00,892 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 05:50:00,893 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 05:50:00,894 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-10-20 05:50:00,927 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 05:50:00,927 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 05:50:00,928 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 05:50:00,929 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 05:50:00,930 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 05:50:00,930 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 05:50:00,930 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 05:50:00,930 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 05:50:00,931 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 05:50:00,931 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 05:50:00,932 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 05:50:00,932 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-20 05:50:00,932 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-20 05:50:00,933 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-20 05:50:00,933 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 05:50:00,933 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-20 05:50:00,933 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 05:50:00,934 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 05:50:00,935 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 05:50:00,935 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 05:50:00,935 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 05:50:00,935 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 05:50:00,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 05:50:00,936 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 05:50:00,936 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 05:50:00,936 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 05:50:00,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 05:50:00,937 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 05:50:00,937 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 -> 22d1ff4f4fd6702e3a4a8affc05625a9c9bb8113 [2020-10-20 05:50:01,138 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 05:50:01,150 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 05:50:01,154 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 05:50:01,155 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 05:50:01,155 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 05:50:01,156 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/lis_unsafe.i [2020-10-20 05:50:01,221 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da7871419/16f4716a889c4fa6b18310dcc8776e60/FLAG28b4ae878 [2020-10-20 05:50:01,812 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 05:50:01,813 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/lis_unsafe.i [2020-10-20 05:50:01,829 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da7871419/16f4716a889c4fa6b18310dcc8776e60/FLAG28b4ae878 [2020-10-20 05:50:02,167 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da7871419/16f4716a889c4fa6b18310dcc8776e60 [2020-10-20 05:50:02,171 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 05:50:02,179 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-20 05:50:02,182 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 05:50:02,184 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 05:50:02,188 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 05:50:02,190 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:50:02" (1/1) ... [2020-10-20 05:50:02,193 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26f1e70d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:50:02, skipping insertion in model container [2020-10-20 05:50:02,194 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:50:02" (1/1) ... [2020-10-20 05:50:02,215 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 05:50:02,261 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 05:50:02,598 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 05:50:02,610 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 05:50:02,611 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@62212a18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:50:02, skipping insertion in model container [2020-10-20 05:50:02,612 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 05:50:02,612 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2020-10-20 05:50:02,615 INFO L168 Benchmark]: Toolchain (without parser) took 441.28 ms. Allocated memory was 38.8 MB in the beginning and 41.9 MB in the end (delta: 3.1 MB). Free memory was 12.3 MB in the beginning and 12.4 MB in the end (delta: -34.5 kB). Peak memory consumption was 5.6 MB. Max. memory is 14.3 GB. [2020-10-20 05:50:02,616 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 32.0 MB. Free memory was 10.7 MB in the beginning and 10.7 MB in the end (delta: 3.1 kB). Peak memory consumption was 3.1 kB. Max. memory is 14.3 GB. [2020-10-20 05:50:02,618 INFO L168 Benchmark]: CACSL2BoogieTranslator took 430.58 ms. Allocated memory was 38.8 MB in the beginning and 41.9 MB in the end (delta: 3.1 MB). Free memory was 11.5 MB in the beginning and 12.4 MB in the end (delta: -908.9 kB). Peak memory consumption was 4.7 MB. Max. memory is 14.3 GB. [2020-10-20 05:50:02,620 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 32.0 MB. Free memory was 10.7 MB in the beginning and 10.7 MB in the end (delta: 3.1 kB). Peak memory consumption was 3.1 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 430.58 ms. Allocated memory was 38.8 MB in the beginning and 41.9 MB in the end (delta: 3.1 MB). Free memory was 11.5 MB in the beginning and 12.4 MB in the end (delta: -908.9 kB). Peak memory consumption was 4.7 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 515]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 05:50:04,567 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 05:50:04,569 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 05:50:04,597 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 05:50:04,598 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 05:50:04,599 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 05:50:04,600 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 05:50:04,602 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 05:50:04,604 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 05:50:04,605 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 05:50:04,606 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 05:50:04,607 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 05:50:04,607 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 05:50:04,608 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 05:50:04,610 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 05:50:04,611 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 05:50:04,612 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 05:50:04,613 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 05:50:04,614 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 05:50:04,616 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 05:50:04,618 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 05:50:04,619 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 05:50:04,620 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 05:50:04,621 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 05:50:04,630 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 05:50:04,631 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 05:50:04,631 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 05:50:04,632 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 05:50:04,633 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 05:50:04,634 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 05:50:04,634 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 05:50:04,635 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 05:50:04,635 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 05:50:04,636 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 05:50:04,637 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 05:50:04,638 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 05:50:04,638 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 05:50:04,639 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 05:50:04,639 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 05:50:04,640 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 05:50:04,640 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 05:50:04,641 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2020-10-20 05:50:04,680 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 05:50:04,680 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 05:50:04,681 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 05:50:04,681 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 05:50:04,682 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 05:50:04,682 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 05:50:04,683 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 05:50:04,683 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 05:50:04,683 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 05:50:04,684 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 05:50:04,684 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 05:50:04,685 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-20 05:50:04,685 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-20 05:50:04,685 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-20 05:50:04,686 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 05:50:04,686 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-20 05:50:04,686 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-20 05:50:04,687 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-20 05:50:04,687 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 05:50:04,688 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 05:50:04,688 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 05:50:04,688 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 05:50:04,689 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 05:50:04,689 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 05:50:04,689 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 05:50:04,689 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 05:50:04,690 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 05:50:04,690 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-20 05:50:04,690 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-20 05:50:04,690 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 05:50:04,690 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-20 05:50:04,691 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 -> 22d1ff4f4fd6702e3a4a8affc05625a9c9bb8113 [2020-10-20 05:50:04,934 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 05:50:04,950 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 05:50:04,958 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 05:50:04,959 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 05:50:04,960 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 05:50:04,961 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/lis_unsafe.i [2020-10-20 05:50:05,022 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9459ddb44/180cbd7def3a4909abd865a29231caf2/FLAGfa08df707 [2020-10-20 05:50:05,558 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 05:50:05,559 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/lis_unsafe.i [2020-10-20 05:50:05,571 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9459ddb44/180cbd7def3a4909abd865a29231caf2/FLAGfa08df707 [2020-10-20 05:50:05,883 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9459ddb44/180cbd7def3a4909abd865a29231caf2 [2020-10-20 05:50:05,887 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 05:50:05,894 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-20 05:50:05,895 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 05:50:05,896 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 05:50:05,900 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 05:50:05,901 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:50:05" (1/1) ... [2020-10-20 05:50:05,905 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56fd8603 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:50:05, skipping insertion in model container [2020-10-20 05:50:05,905 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:50:05" (1/1) ... [2020-10-20 05:50:05,913 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 05:50:05,953 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 05:50:06,371 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 05:50:06,388 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-10-20 05:50:06,404 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 05:50:06,476 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 05:50:06,486 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 05:50:06,548 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 05:50:06,622 INFO L208 MainTranslator]: Completed translation [2020-10-20 05:50:06,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:50:06 WrapperNode [2020-10-20 05:50:06,624 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 05:50:06,625 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 05:50:06,626 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 05:50:06,626 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 05:50:06,641 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:50:06" (1/1) ... [2020-10-20 05:50:06,642 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:50:06" (1/1) ... [2020-10-20 05:50:06,685 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:50:06" (1/1) ... [2020-10-20 05:50:06,686 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:50:06" (1/1) ... [2020-10-20 05:50:06,722 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:50:06" (1/1) ... [2020-10-20 05:50:06,728 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:50:06" (1/1) ... [2020-10-20 05:50:06,732 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:50:06" (1/1) ... [2020-10-20 05:50:06,738 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 05:50:06,739 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 05:50:06,740 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 05:50:06,740 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 05:50:06,741 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:50:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 05:50:06,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-20 05:50:06,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 05:50:06,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2020-10-20 05:50:06,827 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-20 05:50:06,827 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-20 05:50:06,828 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-10-20 05:50:06,828 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-10-20 05:50:06,828 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-10-20 05:50:06,828 INFO L138 BoogieDeclarations]: Found implementation of procedure lis [2020-10-20 05:50:06,828 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-20 05:50:06,828 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-20 05:50:06,829 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-20 05:50:06,829 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-20 05:50:06,829 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-20 05:50:06,829 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-20 05:50:06,830 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-20 05:50:06,830 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-20 05:50:06,830 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-20 05:50:06,830 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-20 05:50:06,830 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-20 05:50:06,832 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-20 05:50:06,832 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-20 05:50:06,832 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-20 05:50:06,832 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-20 05:50:06,833 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-20 05:50:06,833 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-20 05:50:06,833 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-20 05:50:06,833 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-20 05:50:06,833 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-10-20 05:50:06,834 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-10-20 05:50:06,834 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-10-20 05:50:06,834 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-20 05:50:06,834 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-20 05:50:06,834 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-20 05:50:06,834 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-20 05:50:06,835 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-20 05:50:06,835 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-20 05:50:06,835 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-20 05:50:06,835 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-20 05:50:06,835 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-20 05:50:06,836 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-20 05:50:06,836 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-20 05:50:06,836 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-20 05:50:06,836 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-20 05:50:06,836 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-20 05:50:06,837 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-20 05:50:06,837 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-20 05:50:06,837 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-20 05:50:06,837 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-20 05:50:06,837 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-20 05:50:06,837 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-20 05:50:06,838 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-20 05:50:06,838 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-20 05:50:06,838 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-20 05:50:06,838 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-20 05:50:06,838 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-20 05:50:06,838 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-20 05:50:06,838 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-20 05:50:06,839 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-20 05:50:06,839 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-20 05:50:06,839 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-20 05:50:06,839 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-20 05:50:06,839 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-20 05:50:06,840 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-20 05:50:06,840 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-20 05:50:06,840 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-20 05:50:06,840 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-20 05:50:06,840 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-20 05:50:06,840 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-20 05:50:06,841 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-20 05:50:06,841 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-20 05:50:06,841 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-20 05:50:06,841 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-20 05:50:06,842 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-20 05:50:06,842 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-20 05:50:06,842 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-20 05:50:06,842 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-20 05:50:06,842 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-20 05:50:06,842 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-20 05:50:06,842 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-20 05:50:06,843 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-20 05:50:06,843 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-20 05:50:06,843 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-20 05:50:06,843 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-20 05:50:06,843 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-20 05:50:06,844 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-20 05:50:06,844 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-20 05:50:06,844 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-20 05:50:06,844 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-20 05:50:06,844 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-20 05:50:06,844 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-20 05:50:06,844 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-20 05:50:06,844 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-20 05:50:06,851 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-20 05:50:06,851 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-20 05:50:06,851 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-20 05:50:06,851 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-20 05:50:06,851 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-20 05:50:06,851 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-20 05:50:06,851 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-20 05:50:06,851 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-20 05:50:06,852 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-20 05:50:06,852 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-20 05:50:06,852 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-20 05:50:06,852 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-20 05:50:06,852 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-20 05:50:06,852 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-20 05:50:06,852 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-20 05:50:06,852 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-20 05:50:06,853 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-20 05:50:06,853 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-20 05:50:06,853 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-20 05:50:06,853 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-20 05:50:06,853 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-20 05:50:06,854 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-20 05:50:06,854 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-20 05:50:06,854 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-20 05:50:06,854 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-20 05:50:06,854 INFO L130 BoogieDeclarations]: Found specification of procedure lis [2020-10-20 05:50:06,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-20 05:50:06,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-20 05:50:06,855 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-20 05:50:06,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 05:50:06,855 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-20 05:50:06,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-20 05:50:06,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 05:50:06,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2020-10-20 05:50:07,697 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 05:50:07,697 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-20 05:50:07,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:50:07 BoogieIcfgContainer [2020-10-20 05:50:07,700 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 05:50:07,701 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 05:50:07,701 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 05:50:07,704 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 05:50:07,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 05:50:05" (1/3) ... [2020-10-20 05:50:07,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79511481 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:50:07, skipping insertion in model container [2020-10-20 05:50:07,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:50:06" (2/3) ... [2020-10-20 05:50:07,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79511481 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:50:07, skipping insertion in model container [2020-10-20 05:50:07,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:50:07" (3/3) ... [2020-10-20 05:50:07,708 INFO L111 eAbstractionObserver]: Analyzing ICFG lis_unsafe.i [2020-10-20 05:50:07,720 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 05:50:07,727 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 29 error locations. [2020-10-20 05:50:07,741 INFO L253 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2020-10-20 05:50:07,762 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 05:50:07,763 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-20 05:50:07,763 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 05:50:07,763 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 05:50:07,763 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 05:50:07,763 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 05:50:07,764 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 05:50:07,764 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 05:50:07,781 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states. [2020-10-20 05:50:07,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-20 05:50:07,792 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:50:07,793 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:50:07,793 INFO L429 AbstractCegarLoop]: === Iteration 1 === [lisErr12REQUIRES_VIOLATION, lisErr11REQUIRES_VIOLATION, lisErr10REQUIRES_VIOLATION, lisErr23ASSERT_VIOLATIONMEMORY_FREE, lisErr9REQUIRES_VIOLATION, lisErr8REQUIRES_VIOLATION, lisErr26ASSERT_VIOLATIONMEMORY_FREE, lisErr17REQUIRES_VIOLATION, lisErr25ASSERT_VIOLATIONMEMORY_FREE, lisErr16REQUIRES_VIOLATION, lisErr15REQUIRES_VIOLATION, lisErr14REQUIRES_VIOLATION, lisErr13REQUIRES_VIOLATION, lisErr1REQUIRES_VIOLATION, lisErr0REQUIRES_VIOLATION, lisErr21REQUIRES_VIOLATION, lisErr22ASSERT_VIOLATIONMEMORY_FREE, lisErr27ASSERT_VIOLATIONMEMORY_FREE, lisErr20REQUIRES_VIOLATION, lisErr24ASSERT_VIOLATIONMEMORY_FREE, lisErr19REQUIRES_VIOLATION, lisErr18REQUIRES_VIOLATION, lisErr7REQUIRES_VIOLATION, lisErr6REQUIRES_VIOLATION, lisErr5REQUIRES_VIOLATION, lisErr4REQUIRES_VIOLATION, lisErr3REQUIRES_VIOLATION, lisErr2REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-20 05:50:07,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:50:07,800 INFO L82 PathProgramCache]: Analyzing trace with hash -1899922095, now seen corresponding path program 1 times [2020-10-20 05:50:07,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:50:07,814 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1797105696] [2020-10-20 05:50:07,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-20 05:50:08,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:50:08,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-20 05:50:08,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:50:08,149 INFO L350 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2020-10-20 05:50:08,151 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11 [2020-10-20 05:50:08,151 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:50:08,160 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:50:08,164 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 05:50:08,165 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:9, output treesize:11 [2020-10-20 05:50:08,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:50:08,189 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:50:08,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:50:08,247 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1797105696] [2020-10-20 05:50:08,247 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:50:08,247 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-20 05:50:08,249 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323009937] [2020-10-20 05:50:08,253 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 05:50:08,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:50:08,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 05:50:08,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 05:50:08,269 INFO L87 Difference]: Start difference. First operand 79 states. Second operand 3 states. [2020-10-20 05:50:08,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:50:08,506 INFO L93 Difference]: Finished difference Result 71 states and 78 transitions. [2020-10-20 05:50:08,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 05:50:08,508 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-20 05:50:08,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:50:08,518 INFO L225 Difference]: With dead ends: 71 [2020-10-20 05:50:08,519 INFO L226 Difference]: Without dead ends: 68 [2020-10-20 05:50:08,521 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 05:50:08,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-10-20 05:50:08,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-10-20 05:50:08,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-10-20 05:50:08,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 75 transitions. [2020-10-20 05:50:08,558 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 75 transitions. Word has length 11 [2020-10-20 05:50:08,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:50:08,559 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 75 transitions. [2020-10-20 05:50:08,559 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 05:50:08,559 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 75 transitions. [2020-10-20 05:50:08,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-20 05:50:08,559 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:50:08,560 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:50:08,760 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-20 05:50:08,762 INFO L429 AbstractCegarLoop]: === Iteration 2 === [lisErr12REQUIRES_VIOLATION, lisErr11REQUIRES_VIOLATION, lisErr10REQUIRES_VIOLATION, lisErr23ASSERT_VIOLATIONMEMORY_FREE, lisErr9REQUIRES_VIOLATION, lisErr8REQUIRES_VIOLATION, lisErr26ASSERT_VIOLATIONMEMORY_FREE, lisErr17REQUIRES_VIOLATION, lisErr25ASSERT_VIOLATIONMEMORY_FREE, lisErr16REQUIRES_VIOLATION, lisErr15REQUIRES_VIOLATION, lisErr14REQUIRES_VIOLATION, lisErr13REQUIRES_VIOLATION, lisErr1REQUIRES_VIOLATION, lisErr0REQUIRES_VIOLATION, lisErr21REQUIRES_VIOLATION, lisErr22ASSERT_VIOLATIONMEMORY_FREE, lisErr27ASSERT_VIOLATIONMEMORY_FREE, lisErr20REQUIRES_VIOLATION, lisErr24ASSERT_VIOLATIONMEMORY_FREE, lisErr19REQUIRES_VIOLATION, lisErr18REQUIRES_VIOLATION, lisErr7REQUIRES_VIOLATION, lisErr6REQUIRES_VIOLATION, lisErr5REQUIRES_VIOLATION, lisErr4REQUIRES_VIOLATION, lisErr3REQUIRES_VIOLATION, lisErr2REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-20 05:50:08,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:50:08,763 INFO L82 PathProgramCache]: Analyzing trace with hash -1899922094, now seen corresponding path program 1 times [2020-10-20 05:50:08,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:50:08,764 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1646034599] [2020-10-20 05:50:08,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-20 05:50:08,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:50:08,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-20 05:50:08,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:50:08,953 INFO L441 ElimStorePlain]: Different costs {0=[|v_#length_31|], 1=[|v_#valid_47|]} [2020-10-20 05:50:08,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-20 05:50:08,961 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2020-10-20 05:50:08,962 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:50:08,992 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:50:09,005 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2020-10-20 05:50:09,008 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-20 05:50:09,035 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:50:09,040 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 05:50:09,041 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:24, output treesize:21 [2020-10-20 05:50:09,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:50:09,078 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:50:09,241 INFO L441 ElimStorePlain]: Different costs {1=[|#valid|], 2=[|#length|]} [2020-10-20 05:50:09,252 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2020-10-20 05:50:09,254 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:50:09,267 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:50:09,270 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-20 05:50:09,271 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-20 05:50:09,284 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:50:09,292 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:50:09,292 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:25, output treesize:5 [2020-10-20 05:50:09,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:50:09,348 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1646034599] [2020-10-20 05:50:09,348 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:50:09,348 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2020-10-20 05:50:09,348 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291275847] [2020-10-20 05:50:09,350 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-20 05:50:09,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:50:09,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-20 05:50:09,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-20 05:50:09,352 INFO L87 Difference]: Start difference. First operand 68 states and 75 transitions. Second operand 8 states. [2020-10-20 05:50:10,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:50:10,728 INFO L93 Difference]: Finished difference Result 166 states and 186 transitions. [2020-10-20 05:50:10,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 05:50:10,729 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2020-10-20 05:50:10,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:50:10,734 INFO L225 Difference]: With dead ends: 166 [2020-10-20 05:50:10,734 INFO L226 Difference]: Without dead ends: 166 [2020-10-20 05:50:10,736 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-20 05:50:10,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-10-20 05:50:10,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 127. [2020-10-20 05:50:10,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-10-20 05:50:10,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 177 transitions. [2020-10-20 05:50:10,768 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 177 transitions. Word has length 11 [2020-10-20 05:50:10,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:50:10,768 INFO L481 AbstractCegarLoop]: Abstraction has 127 states and 177 transitions. [2020-10-20 05:50:10,769 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-20 05:50:10,769 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 177 transitions. [2020-10-20 05:50:10,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-20 05:50:10,770 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:50:10,770 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:50:10,971 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-20 05:50:10,971 INFO L429 AbstractCegarLoop]: === Iteration 3 === [lisErr12REQUIRES_VIOLATION, lisErr11REQUIRES_VIOLATION, lisErr10REQUIRES_VIOLATION, lisErr23ASSERT_VIOLATIONMEMORY_FREE, lisErr9REQUIRES_VIOLATION, lisErr8REQUIRES_VIOLATION, lisErr26ASSERT_VIOLATIONMEMORY_FREE, lisErr17REQUIRES_VIOLATION, lisErr25ASSERT_VIOLATIONMEMORY_FREE, lisErr16REQUIRES_VIOLATION, lisErr15REQUIRES_VIOLATION, lisErr14REQUIRES_VIOLATION, lisErr13REQUIRES_VIOLATION, lisErr1REQUIRES_VIOLATION, lisErr0REQUIRES_VIOLATION, lisErr21REQUIRES_VIOLATION, lisErr22ASSERT_VIOLATIONMEMORY_FREE, lisErr27ASSERT_VIOLATIONMEMORY_FREE, lisErr20REQUIRES_VIOLATION, lisErr24ASSERT_VIOLATIONMEMORY_FREE, lisErr19REQUIRES_VIOLATION, lisErr18REQUIRES_VIOLATION, lisErr7REQUIRES_VIOLATION, lisErr6REQUIRES_VIOLATION, lisErr5REQUIRES_VIOLATION, lisErr4REQUIRES_VIOLATION, lisErr3REQUIRES_VIOLATION, lisErr2REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-20 05:50:10,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:50:10,973 INFO L82 PathProgramCache]: Analyzing trace with hash -1898075052, now seen corresponding path program 1 times [2020-10-20 05:50:10,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:50:10,975 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1219626795] [2020-10-20 05:50:10,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-10-20 05:50:11,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 05:50:11,090 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 05:50:11,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 05:50:11,116 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 05:50:11,157 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-10-20 05:50:11,158 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 05:50:11,361 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-20 05:50:11,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 05:50:11 BoogieIcfgContainer [2020-10-20 05:50:11,385 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 05:50:11,385 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 05:50:11,385 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 05:50:11,386 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 05:50:11,386 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:50:07" (3/4) ... [2020-10-20 05:50:11,388 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-20 05:50:11,430 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 05:50:11,431 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 05:50:11,432 INFO L168 Benchmark]: Toolchain (without parser) took 5543.39 ms. Allocated memory was 37.2 MB in the beginning and 62.9 MB in the end (delta: 25.7 MB). Free memory was 17.6 MB in the beginning and 15.4 MB in the end (delta: 2.2 MB). Peak memory consumption was 27.9 MB. Max. memory is 14.3 GB. [2020-10-20 05:50:11,433 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 34.6 MB. Free memory was 11.2 MB in the beginning and 11.1 MB in the end (delta: 47.4 kB). Peak memory consumption was 47.4 kB. Max. memory is 14.3 GB. [2020-10-20 05:50:11,434 INFO L168 Benchmark]: CACSL2BoogieTranslator took 729.42 ms. Allocated memory was 37.2 MB in the beginning and 46.7 MB in the end (delta: 9.4 MB). Free memory was 16.7 MB in the beginning and 22.4 MB in the end (delta: -5.7 MB). Peak memory consumption was 15.9 MB. Max. memory is 14.3 GB. [2020-10-20 05:50:11,435 INFO L168 Benchmark]: Boogie Preprocessor took 113.61 ms. Allocated memory is still 46.7 MB. Free memory was 22.4 MB in the beginning and 19.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 14.3 GB. [2020-10-20 05:50:11,436 INFO L168 Benchmark]: RCFGBuilder took 960.35 ms. Allocated memory was 46.7 MB in the beginning and 49.8 MB in the end (delta: 3.1 MB). Free memory was 19.2 MB in the beginning and 20.4 MB in the end (delta: -1.1 MB). Peak memory consumption was 12.8 MB. Max. memory is 14.3 GB. [2020-10-20 05:50:11,437 INFO L168 Benchmark]: TraceAbstraction took 3683.88 ms. Allocated memory was 49.8 MB in the beginning and 62.9 MB in the end (delta: 13.1 MB). Free memory was 20.0 MB in the beginning and 17.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 15.8 MB. Max. memory is 14.3 GB. [2020-10-20 05:50:11,438 INFO L168 Benchmark]: Witness Printer took 45.51 ms. Allocated memory is still 62.9 MB. Free memory was 17.3 MB in the beginning and 15.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 14.3 GB. [2020-10-20 05:50:11,442 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 34.6 MB. Free memory was 11.2 MB in the beginning and 11.1 MB in the end (delta: 47.4 kB). Peak memory consumption was 47.4 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 729.42 ms. Allocated memory was 37.2 MB in the beginning and 46.7 MB in the end (delta: 9.4 MB). Free memory was 16.7 MB in the beginning and 22.4 MB in the end (delta: -5.7 MB). Peak memory consumption was 15.9 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 113.61 ms. Allocated memory is still 46.7 MB. Free memory was 22.4 MB in the beginning and 19.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 14.3 GB. * RCFGBuilder took 960.35 ms. Allocated memory was 46.7 MB in the beginning and 49.8 MB in the end (delta: 3.1 MB). Free memory was 19.2 MB in the beginning and 20.4 MB in the end (delta: -1.1 MB). Peak memory consumption was 12.8 MB. Max. memory is 14.3 GB. * TraceAbstraction took 3683.88 ms. Allocated memory was 49.8 MB in the beginning and 62.9 MB in the end (delta: 13.1 MB). Free memory was 20.0 MB in the beginning and 17.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 15.8 MB. Max. memory is 14.3 GB. * Witness Printer took 45.51 ms. Allocated memory is still 62.9 MB. Free memory was 17.3 MB in the beginning and 15.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 518]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L531] int *a; [L532] int N = __VERIFIER_nondet_int(); [L533] COND FALSE !(N < 1) VAL [N=1073741824] [L535] CALL lis(a, N) VAL [\old(N)=1073741824, a={7:8}] [L514] int *best, *prev, i, j, max = 0; [L515] best = (int*) malloc(sizeof(int) * N) [L516] prev = (int*) malloc(sizeof(int) * N) [L517] i = 0 VAL [\old(N)=1073741824, a={7:8}, a={7:8}, best={1:0}, i=0, malloc(sizeof(int) * N)={2:0}, malloc(sizeof(int) * N)={1:0}, max=0, N=1073741824, prev={2:0}] [L517] COND TRUE i < N VAL [\old(N)=1073741824, a={7:8}, a={7:8}, best={1:0}, i=0, malloc(sizeof(int) * N)={2:0}, malloc(sizeof(int) * N)={1:0}, max=0, N=1073741824, prev={2:0}] [L518] best[i] = 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 100 locations, 29 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 123 SDtfs, 191 SDslu, 269 SDs, 0 SdLazy, 186 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=127occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 39 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 40 ConstructedInterpolants, 2 QuantifiedInterpolants, 1600 SizeOfPredicates, 10 NumberOfNonLiveVariables, 116 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...