./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test16_1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 35987657 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_1.5.800.v20200727-1323.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/ldv-memsafety/memleaks_test16_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 3afced8f9a8fb9c36e6297fc454d6fa3dc7a1789295b6dfeeaf7e663bd888ba5 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 17:24:32,205 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 17:24:32,207 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 17:24:32,243 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 17:24:32,243 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 17:24:32,244 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 17:24:32,246 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 17:24:32,247 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 17:24:32,249 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 17:24:32,250 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 17:24:32,251 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 17:24:32,252 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 17:24:32,252 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 17:24:32,253 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 17:24:32,254 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 17:24:32,255 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 17:24:32,256 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 17:24:32,257 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 17:24:32,258 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 17:24:32,260 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 17:24:32,261 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 17:24:32,262 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 17:24:32,263 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 17:24:32,264 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 17:24:32,265 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 17:24:32,268 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 17:24:32,268 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 17:24:32,269 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 17:24:32,269 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 17:24:32,270 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 17:24:32,271 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 17:24:32,271 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 17:24:32,272 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 17:24:32,272 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 17:24:32,273 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 17:24:32,274 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 17:24:32,274 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 17:24:32,275 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 17:24:32,275 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 17:24:32,275 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 17:24:32,276 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 17:24:32,277 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 17:24:32,278 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-07-21 17:24:32,299 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 17:24:32,299 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 17:24:32,300 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 17:24:32,300 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 17:24:32,301 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 17:24:32,301 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 17:24:32,302 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 17:24:32,302 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 17:24:32,302 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 17:24:32,302 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 17:24:32,303 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 17:24:32,303 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-21 17:24:32,303 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 17:24:32,303 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 17:24:32,303 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 17:24:32,304 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-07-21 17:24:32,304 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-07-21 17:24:32,304 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-07-21 17:24:32,304 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 17:24:32,304 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 17:24:32,305 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 17:24:32,305 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 17:24:32,305 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 17:24:32,305 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 17:24:32,306 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 17:24:32,306 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 17:24:32,306 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 17:24:32,306 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 17:24:32,306 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 17:24:32,307 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 17:24:32,307 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3afced8f9a8fb9c36e6297fc454d6fa3dc7a1789295b6dfeeaf7e663bd888ba5 [2022-07-21 17:24:32,596 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 17:24:32,625 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 17:24:32,627 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 17:24:32,628 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 17:24:32,628 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 17:24:32,630 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test16_1.i [2022-07-21 17:24:32,688 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0bc3f9a5/11e023d621fe482b8db38b9037ab31ec/FLAGca406ae89 [2022-07-21 17:24:33,218 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 17:24:33,219 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test16_1.i [2022-07-21 17:24:33,233 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0bc3f9a5/11e023d621fe482b8db38b9037ab31ec/FLAGca406ae89 [2022-07-21 17:24:33,554 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0bc3f9a5/11e023d621fe482b8db38b9037ab31ec [2022-07-21 17:24:33,557 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 17:24:33,558 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 17:24:33,563 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 17:24:33,564 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 17:24:33,566 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 17:24:33,567 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:24:33" (1/1) ... [2022-07-21 17:24:33,568 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c7585d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:24:33, skipping insertion in model container [2022-07-21 17:24:33,568 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:24:33" (1/1) ... [2022-07-21 17:24:33,574 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 17:24:33,626 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 17:24:34,059 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 17:24:34,078 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2022-07-21 17:24:34,078 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6d744484 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:24:34, skipping insertion in model container [2022-07-21 17:24:34,079 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 17:24:34,079 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-07-21 17:24:34,082 INFO L158 Benchmark]: Toolchain (without parser) took 522.21ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 31.9MB in the beginning and 48.7MB in the end (delta: -16.9MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2022-07-21 17:24:34,083 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 56.6MB. Free memory was 37.8MB in the beginning and 37.7MB in the end (delta: 60.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 17:24:34,084 INFO L158 Benchmark]: CACSL2BoogieTranslator took 516.06ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 31.6MB in the beginning and 48.7MB in the end (delta: -17.1MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2022-07-21 17:24:34,086 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 56.6MB. Free memory was 37.8MB in the beginning and 37.7MB in the end (delta: 60.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 516.06ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 31.6MB in the beginning and 48.7MB in the end (delta: -17.1MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types of different sizes 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... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_1.5.800.v20200727-1323.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/ldv-memsafety/memleaks_test16_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 3afced8f9a8fb9c36e6297fc454d6fa3dc7a1789295b6dfeeaf7e663bd888ba5 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 17:24:35,856 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 17:24:35,858 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 17:24:35,883 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 17:24:35,883 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 17:24:35,884 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 17:24:35,885 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 17:24:35,887 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 17:24:35,888 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 17:24:35,889 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 17:24:35,890 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 17:24:35,891 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 17:24:35,891 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 17:24:35,892 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 17:24:35,893 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 17:24:35,894 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 17:24:35,895 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 17:24:35,896 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 17:24:35,897 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 17:24:35,899 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 17:24:35,900 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 17:24:35,901 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 17:24:35,902 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 17:24:35,903 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 17:24:35,904 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 17:24:35,907 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 17:24:35,907 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 17:24:35,907 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 17:24:35,908 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 17:24:35,909 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 17:24:35,910 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 17:24:35,910 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 17:24:35,911 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 17:24:35,911 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 17:24:35,912 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 17:24:35,913 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 17:24:35,913 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 17:24:35,914 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 17:24:35,914 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 17:24:35,914 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 17:24:35,915 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 17:24:35,919 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 17:24:35,919 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-07-21 17:24:35,948 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 17:24:35,948 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 17:24:35,949 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 17:24:35,949 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 17:24:35,950 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 17:24:35,950 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 17:24:35,951 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 17:24:35,951 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 17:24:35,951 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 17:24:35,952 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 17:24:35,952 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 17:24:35,952 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-21 17:24:35,953 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 17:24:35,953 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 17:24:35,953 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 17:24:35,967 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-07-21 17:24:35,967 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-07-21 17:24:35,967 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-07-21 17:24:35,967 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 17:24:35,968 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 17:24:35,968 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-21 17:24:35,968 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-21 17:24:35,968 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 17:24:35,969 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 17:24:35,969 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 17:24:35,969 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 17:24:35,969 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 17:24:35,970 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 17:24:35,970 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 17:24:35,970 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 17:24:35,971 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-21 17:24:35,971 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-21 17:24:35,971 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-21 17:24:35,971 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3afced8f9a8fb9c36e6297fc454d6fa3dc7a1789295b6dfeeaf7e663bd888ba5 [2022-07-21 17:24:36,279 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 17:24:36,303 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 17:24:36,306 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 17:24:36,307 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 17:24:36,311 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 17:24:36,313 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test16_1.i [2022-07-21 17:24:36,372 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31c8a5793/ae57a66a238e4025b67b377650cabe81/FLAG19aeb5d1b [2022-07-21 17:24:36,844 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 17:24:36,845 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test16_1.i [2022-07-21 17:24:36,857 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31c8a5793/ae57a66a238e4025b67b377650cabe81/FLAG19aeb5d1b [2022-07-21 17:24:37,197 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31c8a5793/ae57a66a238e4025b67b377650cabe81 [2022-07-21 17:24:37,203 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 17:24:37,204 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 17:24:37,206 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 17:24:37,206 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 17:24:37,209 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 17:24:37,210 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:24:37" (1/1) ... [2022-07-21 17:24:37,211 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26e27f2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:24:37, skipping insertion in model container [2022-07-21 17:24:37,211 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:24:37" (1/1) ... [2022-07-21 17:24:37,217 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 17:24:37,261 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 17:24:37,693 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 17:24:37,714 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-21 17:24:37,726 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 17:24:37,791 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 17:24:37,804 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 17:24:37,863 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 17:24:37,914 INFO L208 MainTranslator]: Completed translation [2022-07-21 17:24:37,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:24:37 WrapperNode [2022-07-21 17:24:37,915 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 17:24:37,916 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 17:24:37,924 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 17:24:37,924 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 17:24:37,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:24:37" (1/1) ... [2022-07-21 17:24:37,969 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:24:37" (1/1) ... [2022-07-21 17:24:37,991 INFO L137 Inliner]: procedures = 167, calls = 71, calls flagged for inlining = 23, calls inlined = 5, statements flattened = 30 [2022-07-21 17:24:37,991 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 17:24:37,992 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 17:24:37,992 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 17:24:37,993 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 17:24:38,000 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:24:37" (1/1) ... [2022-07-21 17:24:38,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:24:37" (1/1) ... [2022-07-21 17:24:38,013 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:24:37" (1/1) ... [2022-07-21 17:24:38,014 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:24:37" (1/1) ... [2022-07-21 17:24:38,023 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:24:37" (1/1) ... [2022-07-21 17:24:38,027 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:24:37" (1/1) ... [2022-07-21 17:24:38,030 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:24:37" (1/1) ... [2022-07-21 17:24:38,039 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 17:24:38,040 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 17:24:38,040 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 17:24:38,040 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 17:24:38,041 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:24:37" (1/1) ... [2022-07-21 17:24:38,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 17:24:38,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 17:24:38,077 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 17:24:38,099 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 17:24:38,121 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 17:24:38,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 17:24:38,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 17:24:38,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 17:24:38,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 17:24:38,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 17:24:38,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 17:24:38,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 17:24:38,243 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 17:24:38,245 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 17:24:38,398 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 17:24:38,403 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 17:24:38,403 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 17:24:38,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:24:38 BoogieIcfgContainer [2022-07-21 17:24:38,405 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 17:24:38,407 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 17:24:38,407 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 17:24:38,409 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 17:24:38,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 05:24:37" (1/3) ... [2022-07-21 17:24:38,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e6bef1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:24:38, skipping insertion in model container [2022-07-21 17:24:38,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:24:37" (2/3) ... [2022-07-21 17:24:38,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e6bef1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:24:38, skipping insertion in model container [2022-07-21 17:24:38,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:24:38" (3/3) ... [2022-07-21 17:24:38,412 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test16_1.i [2022-07-21 17:24:38,425 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 17:24:38,425 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-07-21 17:24:38,465 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 17:24:38,473 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@31cce72f, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@688da921 [2022-07-21 17:24:38,473 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-07-21 17:24:38,479 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 15 states have (on average 1.4) internal successors, (21), 19 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 17:24:38,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-21 17:24:38,494 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 17:24:38,494 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 17:24:38,495 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2022-07-21 17:24:38,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 17:24:38,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1492643359, now seen corresponding path program 1 times [2022-07-21 17:24:38,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 17:24:38,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [398766522] [2022-07-21 17:24:38,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 17:24:38,514 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 17:24:38,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 17:24:38,521 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 17:24:38,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-21 17:24:38,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 17:24:38,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-21 17:24:38,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 17:24:38,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 17:24:38,747 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 17:24:38,747 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 17:24:38,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [398766522] [2022-07-21 17:24:38,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [398766522] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 17:24:38,752 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 17:24:38,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 17:24:38,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054331777] [2022-07-21 17:24:38,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 17:24:38,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 17:24:38,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 17:24:38,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 17:24:38,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 17:24:38,795 INFO L87 Difference]: Start difference. First operand has 22 states, 15 states have (on average 1.4) internal successors, (21), 19 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 17:24:38,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 17:24:38,847 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2022-07-21 17:24:38,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 17:24:38,849 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-07-21 17:24:38,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 17:24:38,856 INFO L225 Difference]: With dead ends: 21 [2022-07-21 17:24:38,856 INFO L226 Difference]: Without dead ends: 19 [2022-07-21 17:24:38,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 17:24:38,864 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 24 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 17:24:38,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 66 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 17:24:38,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-07-21 17:24:38,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-07-21 17:24:38,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 16 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 17:24:38,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2022-07-21 17:24:38,893 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 11 [2022-07-21 17:24:38,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 17:24:38,894 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2022-07-21 17:24:38,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 17:24:38,894 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2022-07-21 17:24:38,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-21 17:24:38,895 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 17:24:38,895 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 17:24:38,907 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-21 17:24:39,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 17:24:39,104 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2022-07-21 17:24:39,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 17:24:39,105 INFO L85 PathProgramCache]: Analyzing trace with hash -972696078, now seen corresponding path program 1 times [2022-07-21 17:24:39,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 17:24:39,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [171027044] [2022-07-21 17:24:39,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 17:24:39,106 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 17:24:39,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 17:24:39,107 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 17:24:39,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-21 17:24:39,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 17:24:39,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-21 17:24:39,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 17:24:39,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 17:24:39,298 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 17:24:39,298 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 17:24:39,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [171027044] [2022-07-21 17:24:39,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [171027044] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 17:24:39,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 17:24:39,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 17:24:39,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136394732] [2022-07-21 17:24:39,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 17:24:39,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 17:24:39,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 17:24:39,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 17:24:39,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-21 17:24:39,303 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 17:24:39,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 17:24:39,397 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2022-07-21 17:24:39,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 17:24:39,398 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-07-21 17:24:39,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 17:24:39,399 INFO L225 Difference]: With dead ends: 32 [2022-07-21 17:24:39,399 INFO L226 Difference]: Without dead ends: 32 [2022-07-21 17:24:39,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-07-21 17:24:39,400 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 34 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 17:24:39,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 52 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 17:24:39,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-07-21 17:24:39,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 26. [2022-07-21 17:24:39,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 20 states have (on average 1.25) internal successors, (25), 22 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-21 17:24:39,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2022-07-21 17:24:39,415 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 12 [2022-07-21 17:24:39,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 17:24:39,416 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2022-07-21 17:24:39,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 17:24:39,416 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2022-07-21 17:24:39,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-21 17:24:39,417 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 17:24:39,418 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 17:24:39,429 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-21 17:24:39,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 17:24:39,627 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2022-07-21 17:24:39,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 17:24:39,628 INFO L85 PathProgramCache]: Analyzing trace with hash 770114257, now seen corresponding path program 1 times [2022-07-21 17:24:39,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 17:24:39,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1771565262] [2022-07-21 17:24:39,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 17:24:39,629 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 17:24:39,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 17:24:39,630 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 17:24:39,631 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-21 17:24:39,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 17:24:39,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-21 17:24:39,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 17:24:39,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 17:24:39,792 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 17:24:39,792 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 17:24:39,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1771565262] [2022-07-21 17:24:39,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1771565262] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 17:24:39,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 17:24:39,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 17:24:39,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774747955] [2022-07-21 17:24:39,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 17:24:39,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 17:24:39,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 17:24:39,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 17:24:39,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-21 17:24:39,795 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 17:24:39,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 17:24:39,848 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2022-07-21 17:24:39,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 17:24:39,848 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-07-21 17:24:39,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 17:24:39,849 INFO L225 Difference]: With dead ends: 30 [2022-07-21 17:24:39,849 INFO L226 Difference]: Without dead ends: 30 [2022-07-21 17:24:39,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-07-21 17:24:39,851 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 30 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 17:24:39,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 87 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 17:24:39,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-07-21 17:24:39,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 26. [2022-07-21 17:24:39,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 22 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-21 17:24:39,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2022-07-21 17:24:39,856 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 12 [2022-07-21 17:24:39,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 17:24:39,856 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2022-07-21 17:24:39,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 17:24:39,856 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2022-07-21 17:24:39,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-21 17:24:39,857 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 17:24:39,857 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 17:24:39,869 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-21 17:24:40,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 17:24:40,067 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2022-07-21 17:24:40,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 17:24:40,068 INFO L85 PathProgramCache]: Analyzing trace with hash -88561022, now seen corresponding path program 1 times [2022-07-21 17:24:40,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 17:24:40,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1286545993] [2022-07-21 17:24:40,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 17:24:40,069 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 17:24:40,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 17:24:40,070 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 17:24:40,072 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-21 17:24:40,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 17:24:40,117 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-21 17:24:40,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 17:24:40,181 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-07-21 17:24:40,181 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-21 17:24:40,182 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2022-07-21 17:24:40,184 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE (2 of 4 remaining) [2022-07-21 17:24:40,184 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE (1 of 4 remaining) [2022-07-21 17:24:40,185 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (0 of 4 remaining) [2022-07-21 17:24:40,196 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-21 17:24:40,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 17:24:40,396 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-07-21 17:24:40,399 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-21 17:24:40,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 05:24:40 BoogieIcfgContainer [2022-07-21 17:24:40,422 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-21 17:24:40,423 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-21 17:24:40,423 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-21 17:24:40,423 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-21 17:24:40,424 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:24:38" (3/4) ... [2022-07-21 17:24:40,428 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-21 17:24:40,428 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-21 17:24:40,429 INFO L158 Benchmark]: Toolchain (without parser) took 3224.63ms. Allocated memory was 52.4MB in the beginning and 81.8MB in the end (delta: 29.4MB). Free memory was 27.9MB in the beginning and 47.6MB in the end (delta: -19.8MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. [2022-07-21 17:24:40,429 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 52.4MB. Free memory is still 34.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 17:24:40,430 INFO L158 Benchmark]: CACSL2BoogieTranslator took 709.85ms. Allocated memory was 52.4MB in the beginning and 67.1MB in the end (delta: 14.7MB). Free memory was 27.6MB in the beginning and 32.1MB in the end (delta: -4.5MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. [2022-07-21 17:24:40,430 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.05ms. Allocated memory is still 67.1MB. Free memory was 32.1MB in the beginning and 46.2MB in the end (delta: -14.1MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. [2022-07-21 17:24:40,433 INFO L158 Benchmark]: Boogie Preprocessor took 46.88ms. Allocated memory is still 67.1MB. Free memory was 46.2MB in the beginning and 45.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 17:24:40,436 INFO L158 Benchmark]: RCFGBuilder took 365.25ms. Allocated memory is still 67.1MB. Free memory was 44.8MB in the beginning and 34.5MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-21 17:24:40,436 INFO L158 Benchmark]: TraceAbstraction took 2015.68ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 33.9MB in the beginning and 48.2MB in the end (delta: -14.2MB). Peak memory consumption was 2.0MB. Max. memory is 16.1GB. [2022-07-21 17:24:40,437 INFO L158 Benchmark]: Witness Printer took 5.01ms. Allocated memory is still 81.8MB. Free memory was 48.2MB in the beginning and 47.6MB in the end (delta: 525.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 17:24:40,439 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 52.4MB. Free memory is still 34.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 709.85ms. Allocated memory was 52.4MB in the beginning and 67.1MB in the end (delta: 14.7MB). Free memory was 27.6MB in the beginning and 32.1MB in the end (delta: -4.5MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.05ms. Allocated memory is still 67.1MB. Free memory was 32.1MB in the beginning and 46.2MB in the end (delta: -14.1MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.88ms. Allocated memory is still 67.1MB. Free memory was 46.2MB in the beginning and 45.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 365.25ms. Allocated memory is still 67.1MB. Free memory was 44.8MB in the beginning and 34.5MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2015.68ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 33.9MB in the beginning and 48.2MB in the end (delta: -14.2MB). Peak memory consumption was 2.0MB. Max. memory is 16.1GB. * Witness Printer took 5.01ms. Allocated memory is still 81.8MB. Free memory was 48.2MB in the beginning and 47.6MB in the end (delta: 525.4kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 774]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 774. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; VAL [ldv_global_msg_list={1:0}] [L775] CALL entry_point() [L770] int condition = __VERIFIER_nondet_int(); [L771] CALL, EXPR alloc_unsafe_16(condition) [L761] CALL, EXPR ldv_malloc(sizeof(struct A16)) VAL [\old(size)=4, ldv_global_msg_list={1:0}] [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L761] RET, EXPR ldv_malloc(sizeof(struct A16)) VAL [\old(condition)=0, condition=0, ldv_global_msg_list={1:0}, ldv_malloc(sizeof(struct A16))={2:0}] [L761] struct A16 *p = (struct A16 *)ldv_malloc(sizeof(struct A16)); [L762] return p; VAL [\old(condition)=0, \result={2:0}, condition=0, ldv_global_msg_list={1:0}, p={2:0}] [L771] RET, EXPR alloc_unsafe_16(condition) [L771] struct A16 *p = alloc_unsafe_16(condition); [L772] CALL free_16(p, condition) [L765] COND FALSE !(\read(condition)) VAL [\old(condition)=0, condition=0, ldv_global_msg_list={1:0}, p={2:0}, p={2:0}] [L772] RET free_16(p, condition) [L775] RET entry_point() - UnprovableResult [Line: 766]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 766]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 766]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 22 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 89 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 88 mSDsluCounter, 205 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 148 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 106 IncrementalHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 57 mSDtfsCounter, 106 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=2, InterpolantAutomatonStates: 20, 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, 10 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 151 SizeOfPredicates, 12 NumberOfNonLiveVariables, 146 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-07-21 17:24:40,490 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample