./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test9.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_test9.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 d93866bdcd748cdf15837797eb67e5b49645998c33f9f4788420360893eea3e2 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 17:30:04,885 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 17:30:04,887 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 17:30:04,918 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 17:30:04,918 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 17:30:04,919 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 17:30:04,923 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 17:30:04,925 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 17:30:04,927 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 17:30:04,930 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 17:30:04,931 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 17:30:04,934 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 17:30:04,935 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 17:30:04,936 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 17:30:04,937 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 17:30:04,938 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 17:30:04,938 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 17:30:04,940 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 17:30:04,942 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 17:30:04,946 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 17:30:04,947 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 17:30:04,948 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 17:30:04,949 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 17:30:04,950 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 17:30:04,951 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 17:30:04,955 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 17:30:04,956 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 17:30:04,956 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 17:30:04,957 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 17:30:04,957 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 17:30:04,958 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 17:30:04,958 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 17:30:04,959 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 17:30:04,960 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 17:30:04,961 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 17:30:04,961 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 17:30:04,961 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 17:30:04,962 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 17:30:04,962 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 17:30:04,962 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 17:30:04,963 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 17:30:04,968 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 17:30:04,971 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-07-21 17:30:05,002 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 17:30:05,002 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 17:30:05,003 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 17:30:05,003 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 17:30:05,004 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 17:30:05,004 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 17:30:05,004 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 17:30:05,005 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 17:30:05,005 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 17:30:05,005 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 17:30:05,005 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 17:30:05,006 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-21 17:30:05,006 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 17:30:05,006 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 17:30:05,006 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 17:30:05,006 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-07-21 17:30:05,007 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-07-21 17:30:05,007 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-07-21 17:30:05,007 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 17:30:05,007 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 17:30:05,007 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 17:30:05,007 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 17:30:05,008 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 17:30:05,008 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 17:30:05,008 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 17:30:05,008 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 17:30:05,008 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 17:30:05,008 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 17:30:05,008 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 17:30:05,009 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 17:30:05,009 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d93866bdcd748cdf15837797eb67e5b49645998c33f9f4788420360893eea3e2 [2022-07-21 17:30:05,273 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 17:30:05,290 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 17:30:05,292 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 17:30:05,292 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 17:30:05,294 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 17:30:05,295 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test9.i [2022-07-21 17:30:05,341 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fded2900/87a434526cd64946964b548bbed73b30/FLAG09e4974ad [2022-07-21 17:30:05,827 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 17:30:05,830 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test9.i [2022-07-21 17:30:05,841 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fded2900/87a434526cd64946964b548bbed73b30/FLAG09e4974ad [2022-07-21 17:30:06,202 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fded2900/87a434526cd64946964b548bbed73b30 [2022-07-21 17:30:06,204 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 17:30:06,205 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 17:30:06,207 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 17:30:06,208 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 17:30:06,211 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 17:30:06,211 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:30:06" (1/1) ... [2022-07-21 17:30:06,212 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ffb57d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:30:06, skipping insertion in model container [2022-07-21 17:30:06,212 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:30:06" (1/1) ... [2022-07-21 17:30:06,216 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 17:30:06,267 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 17:30:06,505 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 17:30:06,523 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 17:30:06,524 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@784adf85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:30:06, skipping insertion in model container [2022-07-21 17:30:06,524 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 17:30:06,525 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-07-21 17:30:06,527 INFO L158 Benchmark]: Toolchain (without parser) took 319.77ms. Allocated memory was 50.3MB in the beginning and 60.8MB in the end (delta: 10.5MB). Free memory was 26.0MB in the beginning and 40.6MB in the end (delta: -14.6MB). Peak memory consumption was 3.7MB. Max. memory is 16.1GB. [2022-07-21 17:30:06,527 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 50.3MB. Free memory was 31.9MB in the beginning and 31.9MB in the end (delta: 39.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 17:30:06,528 INFO L158 Benchmark]: CACSL2BoogieTranslator took 317.04ms. Allocated memory was 50.3MB in the beginning and 60.8MB in the end (delta: 10.5MB). Free memory was 25.9MB in the beginning and 40.6MB in the end (delta: -14.7MB). Peak memory consumption was 3.7MB. Max. memory is 16.1GB. [2022-07-21 17:30:06,530 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 50.3MB. Free memory was 31.9MB in the beginning and 31.9MB in the end (delta: 39.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 317.04ms. Allocated memory was 50.3MB in the beginning and 60.8MB in the end (delta: 10.5MB). Free memory was 25.9MB in the beginning and 40.6MB in the end (delta: -14.7MB). Peak memory consumption was 3.7MB. 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_test9.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 d93866bdcd748cdf15837797eb67e5b49645998c33f9f4788420360893eea3e2 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 17:30:08,043 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 17:30:08,045 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 17:30:08,078 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 17:30:08,079 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 17:30:08,080 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 17:30:08,083 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 17:30:08,085 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 17:30:08,087 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 17:30:08,091 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 17:30:08,092 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 17:30:08,094 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 17:30:08,094 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 17:30:08,096 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 17:30:08,096 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 17:30:08,102 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 17:30:08,103 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 17:30:08,103 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 17:30:08,105 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 17:30:08,107 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 17:30:08,111 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 17:30:08,111 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 17:30:08,113 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 17:30:08,114 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 17:30:08,115 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 17:30:08,122 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 17:30:08,123 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 17:30:08,123 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 17:30:08,124 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 17:30:08,124 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 17:30:08,125 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 17:30:08,125 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 17:30:08,126 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 17:30:08,127 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 17:30:08,128 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 17:30:08,128 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 17:30:08,128 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 17:30:08,129 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 17:30:08,129 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 17:30:08,129 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 17:30:08,130 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 17:30:08,131 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 17:30:08,131 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-07-21 17:30:08,161 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 17:30:08,162 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 17:30:08,162 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 17:30:08,162 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 17:30:08,163 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 17:30:08,163 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 17:30:08,163 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 17:30:08,164 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 17:30:08,164 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 17:30:08,164 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 17:30:08,165 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 17:30:08,165 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-21 17:30:08,165 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 17:30:08,165 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 17:30:08,165 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 17:30:08,165 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-07-21 17:30:08,165 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-07-21 17:30:08,166 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-07-21 17:30:08,166 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 17:30:08,166 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 17:30:08,166 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-21 17:30:08,166 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-21 17:30:08,166 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 17:30:08,166 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 17:30:08,167 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 17:30:08,167 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 17:30:08,167 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 17:30:08,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 17:30:08,167 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 17:30:08,167 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 17:30:08,168 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-21 17:30:08,168 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-21 17:30:08,168 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-21 17:30:08,168 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d93866bdcd748cdf15837797eb67e5b49645998c33f9f4788420360893eea3e2 [2022-07-21 17:30:08,409 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 17:30:08,422 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 17:30:08,424 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 17:30:08,424 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 17:30:08,425 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 17:30:08,426 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test9.i [2022-07-21 17:30:08,468 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/619c74c2f/917598a0ee0e4454b4570793400097e7/FLAG614548a76 [2022-07-21 17:30:08,938 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 17:30:08,938 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test9.i [2022-07-21 17:30:08,954 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/619c74c2f/917598a0ee0e4454b4570793400097e7/FLAG614548a76 [2022-07-21 17:30:08,968 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/619c74c2f/917598a0ee0e4454b4570793400097e7 [2022-07-21 17:30:08,970 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 17:30:08,970 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 17:30:08,971 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 17:30:08,971 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 17:30:08,974 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 17:30:08,974 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:30:08" (1/1) ... [2022-07-21 17:30:08,975 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d89228e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:30:08, skipping insertion in model container [2022-07-21 17:30:08,975 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:30:08" (1/1) ... [2022-07-21 17:30:08,980 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 17:30:09,032 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 17:30:09,334 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 17:30:09,349 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-21 17:30:09,356 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 17:30:09,404 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 17:30:09,414 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 17:30:09,454 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 17:30:09,484 INFO L208 MainTranslator]: Completed translation [2022-07-21 17:30:09,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:30:09 WrapperNode [2022-07-21 17:30:09,485 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 17:30:09,485 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 17:30:09,485 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 17:30:09,486 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 17:30:09,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:30:09" (1/1) ... [2022-07-21 17:30:09,510 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:30:09" (1/1) ... [2022-07-21 17:30:09,534 INFO L137 Inliner]: procedures = 167, calls = 71, calls flagged for inlining = 23, calls inlined = 5, statements flattened = 30 [2022-07-21 17:30:09,534 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 17:30:09,535 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 17:30:09,535 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 17:30:09,535 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 17:30:09,545 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:30:09" (1/1) ... [2022-07-21 17:30:09,546 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:30:09" (1/1) ... [2022-07-21 17:30:09,551 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:30:09" (1/1) ... [2022-07-21 17:30:09,551 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:30:09" (1/1) ... [2022-07-21 17:30:09,555 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:30:09" (1/1) ... [2022-07-21 17:30:09,556 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:30:09" (1/1) ... [2022-07-21 17:30:09,561 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:30:09" (1/1) ... [2022-07-21 17:30:09,563 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 17:30:09,564 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 17:30:09,567 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 17:30:09,568 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 17:30:09,568 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:30:09" (1/1) ... [2022-07-21 17:30:09,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 17:30:09,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 17:30:09,601 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 17:30:09,611 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 17:30:09,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 17:30:09,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 17:30:09,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 17:30:09,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 17:30:09,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 17:30:09,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 17:30:09,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 17:30:09,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 17:30:09,738 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 17:30:09,739 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 17:30:09,866 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 17:30:09,869 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 17:30:09,870 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 17:30:09,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:30:09 BoogieIcfgContainer [2022-07-21 17:30:09,871 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 17:30:09,872 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 17:30:09,872 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 17:30:09,874 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 17:30:09,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 05:30:08" (1/3) ... [2022-07-21 17:30:09,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f821175 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:30:09, skipping insertion in model container [2022-07-21 17:30:09,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:30:09" (2/3) ... [2022-07-21 17:30:09,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f821175 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:30:09, skipping insertion in model container [2022-07-21 17:30:09,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:30:09" (3/3) ... [2022-07-21 17:30:09,876 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test9.i [2022-07-21 17:30:09,885 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 17:30:09,885 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-07-21 17:30:09,919 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 17:30:09,924 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@405fab63, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1bb57d48 [2022-07-21 17:30:09,924 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-07-21 17:30:09,927 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.411764705882353) internal successors, (24), 21 states have internal predecessors, (24), 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 17:30:09,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-21 17:30:09,931 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 17:30:09,932 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 17:30:09,932 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 17:30:09,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 17:30:09,937 INFO L85 PathProgramCache]: Analyzing trace with hash 2147112549, now seen corresponding path program 1 times [2022-07-21 17:30:09,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 17:30:09,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [419290362] [2022-07-21 17:30:09,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 17:30:09,946 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 17:30:09,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 17:30:09,948 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 17:30:09,950 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 17:30:10,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 17:30:10,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 17:30:10,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 17:30:10,107 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 17:30:10,108 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 17:30:10,108 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 17:30:10,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [419290362] [2022-07-21 17:30:10,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [419290362] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 17:30:10,110 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 17:30:10,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 17:30:10,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49230974] [2022-07-21 17:30:10,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 17:30:10,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 17:30:10,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 17:30:10,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 17:30:10,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 17:30:10,142 INFO L87 Difference]: Start difference. First operand has 24 states, 17 states have (on average 1.411764705882353) internal successors, (24), 21 states have internal predecessors, (24), 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 5 states, 4 states have (on average 2.5) internal successors, (10), 4 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 17:30:10,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 17:30:10,193 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2022-07-21 17:30:10,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 17:30:10,195 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 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 17:30:10,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 17:30:10,200 INFO L225 Difference]: With dead ends: 23 [2022-07-21 17:30:10,200 INFO L226 Difference]: Without dead ends: 21 [2022-07-21 17:30:10,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-21 17:30:10,207 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 18 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 17:30:10,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 57 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 17:30:10,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-07-21 17:30:10,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-07-21 17:30:10,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 16 states have (on average 1.3125) internal successors, (21), 18 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 17:30:10,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2022-07-21 17:30:10,234 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 12 [2022-07-21 17:30:10,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 17:30:10,234 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2022-07-21 17:30:10,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 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 17:30:10,235 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2022-07-21 17:30:10,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-21 17:30:10,236 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 17:30:10,236 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 17:30:10,245 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 17:30:10,443 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 17:30:10,443 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 17:30:10,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 17:30:10,444 INFO L85 PathProgramCache]: Analyzing trace with hash 2135979633, now seen corresponding path program 1 times [2022-07-21 17:30:10,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 17:30:10,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2062339313] [2022-07-21 17:30:10,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 17:30:10,445 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 17:30:10,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 17:30:10,448 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 17:30:10,471 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 17:30:10,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 17:30:10,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-21 17:30:10,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 17:30:10,606 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 17:30:10,606 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 17:30:10,606 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 17:30:10,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2062339313] [2022-07-21 17:30:10,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2062339313] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 17:30:10,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 17:30:10,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 17:30:10,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969074796] [2022-07-21 17:30:10,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 17:30:10,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 17:30:10,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 17:30:10,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 17:30:10,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-21 17:30:10,609 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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 17:30:10,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 17:30:10,656 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2022-07-21 17:30:10,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 17:30:10,657 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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 13 [2022-07-21 17:30:10,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 17:30:10,658 INFO L225 Difference]: With dead ends: 33 [2022-07-21 17:30:10,658 INFO L226 Difference]: Without dead ends: 33 [2022-07-21 17:30:10,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-21 17:30:10,659 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 35 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 17:30:10,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 51 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 17:30:10,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-07-21 17:30:10,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 29. [2022-07-21 17:30:10,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 25 states have internal predecessors, (29), 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 17:30:10,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2022-07-21 17:30:10,663 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 13 [2022-07-21 17:30:10,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 17:30:10,663 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2022-07-21 17:30:10,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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 17:30:10,664 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2022-07-21 17:30:10,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-21 17:30:10,669 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 17:30:10,670 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 17:30:10,687 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 17:30:10,876 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 17:30:10,876 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 17:30:10,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 17:30:10,877 INFO L85 PathProgramCache]: Analyzing trace with hash 328525170, now seen corresponding path program 1 times [2022-07-21 17:30:10,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 17:30:10,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [912003957] [2022-07-21 17:30:10,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 17:30:10,878 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 17:30:10,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 17:30:10,879 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 17:30:10,880 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 17:30:10,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 17:30:10,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-21 17:30:10,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 17:30:10,953 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 17:30:10,954 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 17:30:10,954 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 17:30:10,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [912003957] [2022-07-21 17:30:10,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [912003957] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 17:30:10,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 17:30:10,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 17:30:10,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957370263] [2022-07-21 17:30:10,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 17:30:10,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 17:30:10,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 17:30:10,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 17:30:10,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 17:30:10,956 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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 17:30:11,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 17:30:11,001 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2022-07-21 17:30:11,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 17:30:11,001 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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 13 [2022-07-21 17:30:11,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 17:30:11,002 INFO L225 Difference]: With dead ends: 32 [2022-07-21 17:30:11,002 INFO L226 Difference]: Without dead ends: 32 [2022-07-21 17:30:11,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-21 17:30:11,003 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 18 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 17:30:11,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 81 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 17:30:11,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-07-21 17:30:11,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2022-07-21 17:30:11,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 26 states have internal predecessors, (29), 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 17:30:11,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2022-07-21 17:30:11,006 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 13 [2022-07-21 17:30:11,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 17:30:11,007 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2022-07-21 17:30:11,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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 17:30:11,007 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2022-07-21 17:30:11,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-21 17:30:11,008 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 17:30:11,008 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 17:30:11,016 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 17:30:11,214 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 17:30:11,214 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2022-07-21 17:30:11,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 17:30:11,215 INFO L85 PathProgramCache]: Analyzing trace with hash 330372212, now seen corresponding path program 1 times [2022-07-21 17:30:11,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 17:30:11,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1102302217] [2022-07-21 17:30:11,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 17:30:11,216 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 17:30:11,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 17:30:11,217 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 17:30:11,218 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 17:30:11,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 17:30:11,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 17:30:11,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 17:30:11,271 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 17:30:11,272 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 17:30:11,273 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 17:30:11,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1102302217] [2022-07-21 17:30:11,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1102302217] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 17:30:11,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 17:30:11,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 17:30:11,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518645438] [2022-07-21 17:30:11,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 17:30:11,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 17:30:11,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 17:30:11,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 17:30:11,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 17:30:11,275 INFO L87 Difference]: Start difference. First operand 30 states and 32 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 17:30:11,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 17:30:11,290 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2022-07-21 17:30:11,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 17:30:11,291 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 13 [2022-07-21 17:30:11,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 17:30:11,291 INFO L225 Difference]: With dead ends: 30 [2022-07-21 17:30:11,292 INFO L226 Difference]: Without dead ends: 30 [2022-07-21 17:30:11,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 17:30:11,293 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 9 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 17:30:11,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 61 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 17:30:11,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-07-21 17:30:11,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 26. [2022-07-21 17:30:11,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 22 states have internal predecessors, (24), 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 17:30:11,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2022-07-21 17:30:11,299 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 13 [2022-07-21 17:30:11,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 17:30:11,300 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2022-07-21 17:30:11,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 17:30:11,300 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2022-07-21 17:30:11,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-07-21 17:30:11,300 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 17:30:11,301 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 17:30:11,312 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 17:30:11,503 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 17:30:11,503 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2022-07-21 17:30:11,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 17:30:11,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1790859239, now seen corresponding path program 1 times [2022-07-21 17:30:11,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 17:30:11,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [641628248] [2022-07-21 17:30:11,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 17:30:11,505 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 17:30:11,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 17:30:11,506 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 17:30:11,507 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-21 17:30:11,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 17:30:11,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-21 17:30:11,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 17:30:11,558 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-21 17:30:11,584 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 17:30:11,584 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 17:30:11,584 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 17:30:11,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [641628248] [2022-07-21 17:30:11,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [641628248] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 17:30:11,585 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 17:30:11,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 17:30:11,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791487926] [2022-07-21 17:30:11,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 17:30:11,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 17:30:11,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 17:30:11,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 17:30:11,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 17:30:11,587 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 17:30:11,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 17:30:11,612 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2022-07-21 17:30:11,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 17:30:11,612 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 14 [2022-07-21 17:30:11,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 17:30:11,613 INFO L225 Difference]: With dead ends: 26 [2022-07-21 17:30:11,613 INFO L226 Difference]: Without dead ends: 26 [2022-07-21 17:30:11,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 17:30:11,614 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 1 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 17:30:11,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 49 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 17:30:11,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-07-21 17:30:11,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2022-07-21 17:30:11,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 21 states have (on average 1.0952380952380953) internal successors, (23), 21 states have internal predecessors, (23), 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 17:30:11,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2022-07-21 17:30:11,627 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 14 [2022-07-21 17:30:11,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 17:30:11,627 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2022-07-21 17:30:11,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 17:30:11,628 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2022-07-21 17:30:11,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-07-21 17:30:11,628 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 17:30:11,629 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 17:30:11,637 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-21 17:30:11,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 17:30:11,835 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2022-07-21 17:30:11,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 17:30:11,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1791167080, now seen corresponding path program 1 times [2022-07-21 17:30:11,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 17:30:11,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2023203480] [2022-07-21 17:30:11,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 17:30:11,836 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 17:30:11,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 17:30:11,837 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 17:30:11,841 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-21 17:30:11,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 17:30:11,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 17:30:11,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 17:30:11,892 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 17:30:11,893 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 17:30:11,893 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 17:30:11,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2023203480] [2022-07-21 17:30:11,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2023203480] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 17:30:11,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 17:30:11,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 17:30:11,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716538076] [2022-07-21 17:30:11,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 17:30:11,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 17:30:11,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 17:30:11,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 17:30:11,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 17:30:11,895 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 17:30:11,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 17:30:11,904 INFO L93 Difference]: Finished difference Result 29 states and 28 transitions. [2022-07-21 17:30:11,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 17:30:11,905 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 14 [2022-07-21 17:30:11,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 17:30:11,906 INFO L225 Difference]: With dead ends: 29 [2022-07-21 17:30:11,906 INFO L226 Difference]: Without dead ends: 29 [2022-07-21 17:30:11,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 17:30:11,907 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 17 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 17:30:11,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 47 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 17:30:11,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-07-21 17:30:11,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 25. [2022-07-21 17:30:11,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 21 states have (on average 1.0476190476190477) internal successors, (22), 21 states have internal predecessors, (22), 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 17:30:11,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2022-07-21 17:30:11,910 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 14 [2022-07-21 17:30:11,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 17:30:11,910 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2022-07-21 17:30:11,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 17:30:11,910 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2022-07-21 17:30:11,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-07-21 17:30:11,910 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 17:30:11,911 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 17:30:11,919 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-21 17:30:12,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 17:30:12,119 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2022-07-21 17:30:12,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 17:30:12,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1651911877, now seen corresponding path program 1 times [2022-07-21 17:30:12,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 17:30:12,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1191217393] [2022-07-21 17:30:12,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 17:30:12,120 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 17:30:12,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 17:30:12,121 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 17:30:12,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-21 17:30:12,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 17:30:12,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 17:30:12,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 17:30:12,181 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 17:30:12,181 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 17:30:12,181 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 17:30:12,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1191217393] [2022-07-21 17:30:12,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1191217393] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 17:30:12,182 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 17:30:12,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 17:30:12,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93316316] [2022-07-21 17:30:12,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 17:30:12,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 17:30:12,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 17:30:12,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 17:30:12,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 17:30:12,183 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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 17:30:12,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 17:30:12,196 INFO L93 Difference]: Finished difference Result 28 states and 27 transitions. [2022-07-21 17:30:12,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 17:30:12,196 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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 14 [2022-07-21 17:30:12,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 17:30:12,199 INFO L225 Difference]: With dead ends: 28 [2022-07-21 17:30:12,200 INFO L226 Difference]: Without dead ends: 19 [2022-07-21 17:30:12,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 17:30:12,202 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 0 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 17:30:12,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 51 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 17:30:12,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-07-21 17:30:12,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-07-21 17:30:12,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 16 states have (on average 1.0) internal successors, (16), 16 states have internal predecessors, (16), 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 17:30:12,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2022-07-21 17:30:12,210 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 14 [2022-07-21 17:30:12,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 17:30:12,211 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2022-07-21 17:30:12,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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 17:30:12,211 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2022-07-21 17:30:12,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-21 17:30:12,211 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 17:30:12,212 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 17:30:12,221 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-21 17:30:12,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 17:30:12,418 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2022-07-21 17:30:12,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 17:30:12,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1299359058, now seen corresponding path program 1 times [2022-07-21 17:30:12,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 17:30:12,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2056480114] [2022-07-21 17:30:12,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 17:30:12,418 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 17:30:12,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 17:30:12,419 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 17:30:12,420 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-21 17:30:12,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 17:30:12,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-21 17:30:12,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 17:30:12,606 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 17:30:12,607 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 17:30:12,607 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 17:30:12,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2056480114] [2022-07-21 17:30:12,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2056480114] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 17:30:12,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 17:30:12,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 17:30:12,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511856475] [2022-07-21 17:30:12,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 17:30:12,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 17:30:12,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 17:30:12,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 17:30:12,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-21 17:30:12,609 INFO L87 Difference]: Start difference. First operand 19 states and 18 transitions. Second operand has 8 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 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 17:30:12,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 17:30:12,615 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2022-07-21 17:30:12,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 17:30:12,616 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 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 18 [2022-07-21 17:30:12,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 17:30:12,616 INFO L225 Difference]: With dead ends: 18 [2022-07-21 17:30:12,616 INFO L226 Difference]: Without dead ends: 0 [2022-07-21 17:30:12,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-21 17:30:12,617 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 3 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 18 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 17:30:12,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 42 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 18 Unchecked, 0.0s Time] [2022-07-21 17:30:12,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-21 17:30:12,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-21 17:30:12,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 17:30:12,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-21 17:30:12,618 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2022-07-21 17:30:12,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 17:30:12,618 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-21 17:30:12,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 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 17:30:12,618 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-21 17:30:12,618 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-21 17:30:12,620 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE (3 of 4 remaining) [2022-07-21 17:30:12,621 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE (2 of 4 remaining) [2022-07-21 17:30:12,621 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (1 of 4 remaining) [2022-07-21 17:30:12,621 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (0 of 4 remaining) [2022-07-21 17:30:12,629 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-21 17:30:12,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 17:30:12,836 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 17:30:12,837 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-21 17:30:12,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 05:30:12 BoogieIcfgContainer [2022-07-21 17:30:12,839 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-21 17:30:12,839 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-21 17:30:12,839 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-21 17:30:12,839 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-21 17:30:12,840 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:30:09" (3/4) ... [2022-07-21 17:30:12,841 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-21 17:30:12,846 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2022-07-21 17:30:12,849 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-07-21 17:30:12,849 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-07-21 17:30:12,850 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-21 17:30:12,868 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-21 17:30:12,868 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-21 17:30:12,868 INFO L158 Benchmark]: Toolchain (without parser) took 3897.91ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 45.6MB in the beginning and 29.2MB in the end (delta: 16.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-07-21 17:30:12,869 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 67.1MB. Free memory was 47.8MB in the beginning and 47.7MB in the end (delta: 85.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 17:30:12,869 INFO L158 Benchmark]: CACSL2BoogieTranslator took 513.59ms. Allocated memory is still 67.1MB. Free memory was 45.4MB in the beginning and 32.2MB in the end (delta: 13.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-21 17:30:12,869 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.03ms. Allocated memory is still 67.1MB. Free memory was 32.2MB in the beginning and 29.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 17:30:12,869 INFO L158 Benchmark]: Boogie Preprocessor took 28.27ms. Allocated memory is still 67.1MB. Free memory was 29.9MB in the beginning and 49.2MB in the end (delta: -19.3MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. [2022-07-21 17:30:12,870 INFO L158 Benchmark]: RCFGBuilder took 307.51ms. Allocated memory is still 67.1MB. Free memory was 49.2MB in the beginning and 38.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-21 17:30:12,870 INFO L158 Benchmark]: TraceAbstraction took 2966.66ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 38.4MB in the beginning and 31.5MB in the end (delta: 7.0MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. [2022-07-21 17:30:12,870 INFO L158 Benchmark]: Witness Printer took 28.89ms. Allocated memory is still 81.8MB. Free memory was 31.5MB in the beginning and 29.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 17:30:12,871 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 67.1MB. Free memory was 47.8MB in the beginning and 47.7MB in the end (delta: 85.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 513.59ms. Allocated memory is still 67.1MB. Free memory was 45.4MB in the beginning and 32.2MB in the end (delta: 13.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.03ms. Allocated memory is still 67.1MB. Free memory was 32.2MB in the beginning and 29.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.27ms. Allocated memory is still 67.1MB. Free memory was 29.9MB in the beginning and 49.2MB in the end (delta: -19.3MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. * RCFGBuilder took 307.51ms. Allocated memory is still 67.1MB. Free memory was 49.2MB in the beginning and 38.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2966.66ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 38.4MB in the beginning and 31.5MB in the end (delta: 7.0MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. * Witness Printer took 28.89ms. Allocated memory is still 81.8MB. Free memory was 31.5MB in the beginning and 29.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. 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 - PositiveResult [Line: 766]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 766]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 766]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 775]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 2.9s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 103 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 101 mSDsluCounter, 439 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 18 IncrementalHoareTripleChecker+Unchecked, 276 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 150 IncrementalHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 163 mSDtfsCounter, 150 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 109 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=3, InterpolantAutomatonStates: 41, 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, 8 MinimizatonAttempts, 15 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 111 NumberOfCodeBlocks, 111 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 103 ConstructedInterpolants, 13 QuantifiedInterpolants, 448 SizeOfPredicates, 3 NumberOfNonLiveVariables, 349 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-07-21 17:30:12,894 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE