./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test1-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 20ed64ec 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_test1-3.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 05263e1a00e36e758633b8fa4d2ee72b914ab3e1 ................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.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_test1-3.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 05263e1a00e36e758633b8fa4d2ee72b914ab3e1 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 06:02:50,457 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 06:02:50,460 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 06:02:50,491 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 06:02:50,491 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 06:02:50,494 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 06:02:50,495 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 06:02:50,503 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 06:02:50,505 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 06:02:50,508 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 06:02:50,509 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 06:02:50,512 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 06:02:50,513 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 06:02:50,515 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 06:02:50,516 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 06:02:50,518 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 06:02:50,519 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 06:02:50,520 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 06:02:50,521 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 06:02:50,526 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 06:02:50,526 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 06:02:50,527 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 06:02:50,528 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 06:02:50,530 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 06:02:50,539 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 06:02:50,539 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 06:02:50,539 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 06:02:50,540 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 06:02:50,541 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 06:02:50,541 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 06:02:50,542 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 06:02:50,542 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 06:02:50,543 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 06:02:50,544 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 06:02:50,545 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 06:02:50,545 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 06:02:50,546 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 06:02:50,546 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 06:02:50,546 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 06:02:50,547 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 06:02:50,548 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 06:02:50,551 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-08-27 06:02:50,579 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 06:02:50,579 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 06:02:50,580 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 06:02:50,580 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 06:02:50,581 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 06:02:50,582 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 06:02:50,582 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 06:02:50,582 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 06:02:50,582 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 06:02:50,582 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 06:02:50,583 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 06:02:50,583 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 06:02:50,583 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 06:02:50,583 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 06:02:50,583 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 06:02:50,584 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 06:02:50,584 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 06:02:50,584 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 06:02:50,584 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 06:02:50,584 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 06:02:50,584 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 06:02:50,584 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 06:02:50,585 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 06:02:50,585 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:02:50,585 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 06:02:50,585 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 06:02:50,585 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 06:02:50,585 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-27 06:02:50,585 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 06:02:50,586 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 05263e1a00e36e758633b8fa4d2ee72b914ab3e1 [2021-08-27 06:02:50,830 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 06:02:50,847 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 06:02:50,849 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 06:02:50,850 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 06:02:50,851 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 06:02:50,852 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test1-3.i [2021-08-27 06:02:50,894 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6506ca07/ff9a5b590b604f518a55e4e67316b96c/FLAGd4d566bc5 [2021-08-27 06:02:51,283 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 06:02:51,284 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test1-3.i [2021-08-27 06:02:51,297 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6506ca07/ff9a5b590b604f518a55e4e67316b96c/FLAGd4d566bc5 [2021-08-27 06:02:51,670 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6506ca07/ff9a5b590b604f518a55e4e67316b96c [2021-08-27 06:02:51,671 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 06:02:51,672 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 06:02:51,677 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 06:02:51,678 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 06:02:51,680 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 06:02:51,681 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:02:51" (1/1) ... [2021-08-27 06:02:51,681 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11cdd2e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:02:51, skipping insertion in model container [2021-08-27 06:02:51,682 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:02:51" (1/1) ... [2021-08-27 06:02:51,686 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 06:02:51,728 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:02:52,015 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:02:52,029 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-08-27 06:02:52,030 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@20cc0228 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:02:52, skipping insertion in model container [2021-08-27 06:02:52,030 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 06:02:52,030 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-08-27 06:02:52,032 INFO L168 Benchmark]: Toolchain (without parser) took 358.92 ms. Allocated memory is still 50.3 MB. Free memory was 25.1 MB in the beginning and 29.5 MB in the end (delta: -4.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-08-27 06:02:52,033 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 50.3 MB. Free memory was 31.4 MB in the beginning and 31.3 MB in the end (delta: 33.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:02:52,034 INFO L168 Benchmark]: CACSL2BoogieTranslator took 353.03 ms. Allocated memory is still 50.3 MB. Free memory was 24.9 MB in the beginning and 29.7 MB in the end (delta: -4.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-08-27 06:02:52,035 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 50.3 MB. Free memory was 31.4 MB in the beginning and 31.3 MB in the end (delta: 33.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 353.03 ms. Allocated memory is still 50.3 MB. Free memory was 24.9 MB in the beginning and 29.7 MB in the end (delta: -4.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 06:02:53,319 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 06:02:53,321 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 06:02:53,345 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 06:02:53,345 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 06:02:53,346 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 06:02:53,347 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 06:02:53,348 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 06:02:53,349 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 06:02:53,350 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 06:02:53,350 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 06:02:53,351 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 06:02:53,351 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 06:02:53,352 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 06:02:53,353 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 06:02:53,354 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 06:02:53,354 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 06:02:53,355 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 06:02:53,356 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 06:02:53,358 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 06:02:53,359 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 06:02:53,360 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 06:02:53,360 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 06:02:53,361 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 06:02:53,363 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 06:02:53,363 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 06:02:53,363 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 06:02:53,364 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 06:02:53,365 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 06:02:53,365 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 06:02:53,365 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 06:02:53,366 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 06:02:53,367 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 06:02:53,367 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 06:02:53,368 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 06:02:53,368 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 06:02:53,369 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 06:02:53,369 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 06:02:53,369 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 06:02:53,369 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 06:02:53,370 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 06:02:53,371 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-08-27 06:02:53,386 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 06:02:53,386 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 06:02:53,386 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 06:02:53,387 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 06:02:53,387 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 06:02:53,388 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 06:02:53,388 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 06:02:53,388 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 06:02:53,388 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 06:02:53,388 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 06:02:53,388 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 06:02:53,389 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 06:02:53,389 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 06:02:53,389 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 06:02:53,389 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 06:02:53,389 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 06:02:53,389 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 06:02:53,389 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 06:02:53,389 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-27 06:02:53,390 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-27 06:02:53,390 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 06:02:53,390 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 06:02:53,390 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 06:02:53,390 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 06:02:53,390 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 06:02:53,390 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:02:53,391 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 06:02:53,391 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 06:02:53,391 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-27 06:02:53,391 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-27 06:02:53,391 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 06:02:53,391 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-27 06:02:53,391 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 05263e1a00e36e758633b8fa4d2ee72b914ab3e1 [2021-08-27 06:02:53,613 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 06:02:53,635 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 06:02:53,637 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 06:02:53,638 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 06:02:53,638 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 06:02:53,639 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test1-3.i [2021-08-27 06:02:53,678 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9f06aea6/98e0160e95d74d4d8fdc53aecf06ca95/FLAGdb303bd35 [2021-08-27 06:02:54,107 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 06:02:54,108 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test1-3.i [2021-08-27 06:02:54,123 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9f06aea6/98e0160e95d74d4d8fdc53aecf06ca95/FLAGdb303bd35 [2021-08-27 06:02:54,478 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9f06aea6/98e0160e95d74d4d8fdc53aecf06ca95 [2021-08-27 06:02:54,480 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 06:02:54,482 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 06:02:54,484 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 06:02:54,484 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 06:02:54,486 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 06:02:54,487 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:02:54" (1/1) ... [2021-08-27 06:02:54,487 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66abdef7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:02:54, skipping insertion in model container [2021-08-27 06:02:54,488 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:02:54" (1/1) ... [2021-08-27 06:02:54,492 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 06:02:54,532 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:02:54,812 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:02:54,829 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-08-27 06:02:54,836 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:02:54,879 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:02:54,893 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 06:02:54,916 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:02:54,944 INFO L208 MainTranslator]: Completed translation [2021-08-27 06:02:54,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:02:54 WrapperNode [2021-08-27 06:02:54,945 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 06:02:54,951 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 06:02:54,951 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 06:02:54,951 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 06:02:54,959 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:02:54" (1/1) ... [2021-08-27 06:02:54,959 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:02:54" (1/1) ... [2021-08-27 06:02:54,989 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:02:54" (1/1) ... [2021-08-27 06:02:54,989 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:02:54" (1/1) ... [2021-08-27 06:02:55,018 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:02:54" (1/1) ... [2021-08-27 06:02:55,025 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:02:54" (1/1) ... [2021-08-27 06:02:55,029 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:02:54" (1/1) ... [2021-08-27 06:02:55,040 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 06:02:55,041 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 06:02:55,041 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 06:02:55,041 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 06:02:55,042 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:02:54" (1/1) ... [2021-08-27 06:02:55,046 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:02:55,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 06:02:55,060 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) [2021-08-27 06:02:55,077 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 [2021-08-27 06:02:55,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-08-27 06:02:55,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 06:02:55,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-08-27 06:02:55,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-08-27 06:02:55,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-08-27 06:02:55,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-08-27 06:02:55,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-08-27 06:02:55,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-08-27 06:02:55,099 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-08-27 06:02:55,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-08-27 06:02:55,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-08-27 06:02:55,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-08-27 06:02:55,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-08-27 06:02:55,099 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-08-27 06:02:55,099 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-08-27 06:02:55,100 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-08-27 06:02:55,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-08-27 06:02:55,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-08-27 06:02:55,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-08-27 06:02:55,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-08-27 06:02:55,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-08-27 06:02:55,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-08-27 06:02:55,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-08-27 06:02:55,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-08-27 06:02:55,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-08-27 06:02:55,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-08-27 06:02:55,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-08-27 06:02:55,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-08-27 06:02:55,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-08-27 06:02:55,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-08-27 06:02:55,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-08-27 06:02:55,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-08-27 06:02:55,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-08-27 06:02:55,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-08-27 06:02:55,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-08-27 06:02:55,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-08-27 06:02:55,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-08-27 06:02:55,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-08-27 06:02:55,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-08-27 06:02:55,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-08-27 06:02:55,103 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-08-27 06:02:55,103 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-08-27 06:02:55,104 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-08-27 06:02:55,104 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-08-27 06:02:55,104 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-08-27 06:02:55,104 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-08-27 06:02:55,104 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-08-27 06:02:55,105 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-08-27 06:02:55,105 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-08-27 06:02:55,105 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-08-27 06:02:55,105 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-08-27 06:02:55,105 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-08-27 06:02:55,106 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-08-27 06:02:55,106 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-08-27 06:02:55,106 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-08-27 06:02:55,108 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-08-27 06:02:55,108 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-08-27 06:02:55,108 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-08-27 06:02:55,108 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-08-27 06:02:55,109 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-08-27 06:02:55,109 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-08-27 06:02:55,109 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-08-27 06:02:55,110 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-08-27 06:02:55,110 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-08-27 06:02:55,110 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-08-27 06:02:55,110 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-08-27 06:02:55,111 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-08-27 06:02:55,111 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-08-27 06:02:55,111 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-08-27 06:02:55,111 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-08-27 06:02:55,111 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-08-27 06:02:55,111 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-08-27 06:02:55,111 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-08-27 06:02:55,111 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-08-27 06:02:55,112 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-08-27 06:02:55,112 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-08-27 06:02:55,112 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-08-27 06:02:55,113 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-08-27 06:02:55,113 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-08-27 06:02:55,113 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-08-27 06:02:55,113 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-08-27 06:02:55,113 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-08-27 06:02:55,113 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-08-27 06:02:55,113 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-08-27 06:02:55,113 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-08-27 06:02:55,114 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-08-27 06:02:55,114 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-08-27 06:02:55,114 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-08-27 06:02:55,114 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-08-27 06:02:55,114 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-08-27 06:02:55,114 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-08-27 06:02:55,114 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-08-27 06:02:55,114 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-08-27 06:02:55,115 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-08-27 06:02:55,115 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-08-27 06:02:55,115 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-08-27 06:02:55,115 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-08-27 06:02:55,115 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-08-27 06:02:55,115 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-08-27 06:02:55,116 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-08-27 06:02:55,116 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-08-27 06:02:55,116 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-08-27 06:02:55,116 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-08-27 06:02:55,116 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-08-27 06:02:55,116 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-08-27 06:02:55,116 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-08-27 06:02:55,116 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-08-27 06:02:55,117 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-08-27 06:02:55,117 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-08-27 06:02:55,117 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-08-27 06:02:55,117 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-08-27 06:02:55,117 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-08-27 06:02:55,117 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-08-27 06:02:55,117 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-08-27 06:02:55,118 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-08-27 06:02:55,118 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-08-27 06:02:55,118 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-08-27 06:02:55,118 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-08-27 06:02:55,118 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-08-27 06:02:55,118 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-08-27 06:02:55,119 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-08-27 06:02:55,119 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-08-27 06:02:55,119 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-08-27 06:02:55,120 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-08-27 06:02:55,121 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-08-27 06:02:55,121 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-08-27 06:02:55,121 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-08-27 06:02:55,122 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-08-27 06:02:55,123 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-08-27 06:02:55,123 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-08-27 06:02:55,123 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-08-27 06:02:55,123 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-08-27 06:02:55,124 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-08-27 06:02:55,126 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-08-27 06:02:55,127 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-08-27 06:02:55,127 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-08-27 06:02:55,127 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-08-27 06:02:55,127 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-08-27 06:02:55,127 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-08-27 06:02:55,128 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-08-27 06:02:55,128 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-08-27 06:02:55,128 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-08-27 06:02:55,128 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-08-27 06:02:55,128 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-08-27 06:02:55,128 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-08-27 06:02:55,128 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-08-27 06:02:55,128 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-08-27 06:02:55,128 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-08-27 06:02:55,129 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-08-27 06:02:55,129 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-08-27 06:02:55,129 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-08-27 06:02:55,129 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-08-27 06:02:55,129 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-08-27 06:02:55,129 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-08-27 06:02:55,129 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-08-27 06:02:55,129 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-08-27 06:02:55,129 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-08-27 06:02:55,130 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-08-27 06:02:55,130 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-08-27 06:02:55,130 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-08-27 06:02:55,130 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-08-27 06:02:55,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-27 06:02:55,130 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-08-27 06:02:55,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-08-27 06:02:55,130 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-08-27 06:02:55,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-08-27 06:02:55,131 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-08-27 06:02:55,131 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-08-27 06:02:55,131 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-08-27 06:02:55,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-08-27 06:02:55,131 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-08-27 06:02:55,131 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-08-27 06:02:55,131 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-08-27 06:02:55,131 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-08-27 06:02:55,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-08-27 06:02:55,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-08-27 06:02:55,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-27 06:02:55,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-08-27 06:02:55,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-08-27 06:02:55,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-08-27 06:02:55,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-08-27 06:02:55,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-08-27 06:02:55,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-08-27 06:02:55,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-08-27 06:02:55,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-08-27 06:02:55,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-08-27 06:02:55,133 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-08-27 06:02:55,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-08-27 06:02:55,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-08-27 06:02:55,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-08-27 06:02:55,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-08-27 06:02:55,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-08-27 06:02:55,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-08-27 06:02:55,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-08-27 06:02:55,134 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-08-27 06:02:55,134 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-08-27 06:02:55,134 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-08-27 06:02:55,134 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-08-27 06:02:55,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-08-27 06:02:55,134 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-08-27 06:02:55,134 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-08-27 06:02:55,134 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-08-27 06:02:55,134 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-08-27 06:02:55,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-08-27 06:02:55,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 06:02:55,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-08-27 06:02:55,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 06:02:55,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-08-27 06:02:55,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-08-27 06:02:55,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-08-27 06:02:55,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-08-27 06:02:55,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-08-27 06:02:55,582 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 06:02:55,812 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 06:02:55,989 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 06:02:55,989 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-08-27 06:02:55,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:02:55 BoogieIcfgContainer [2021-08-27 06:02:55,991 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 06:02:55,992 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-27 06:02:55,992 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-27 06:02:55,994 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-27 06:02:55,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 06:02:54" (1/3) ... [2021-08-27 06:02:55,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57f8fa74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:02:55, skipping insertion in model container [2021-08-27 06:02:55,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:02:54" (2/3) ... [2021-08-27 06:02:55,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57f8fa74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:02:55, skipping insertion in model container [2021-08-27 06:02:55,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:02:55" (3/3) ... [2021-08-27 06:02:55,996 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test1-3.i [2021-08-27 06:02:56,000 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-27 06:02:56,000 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 74 error locations. [2021-08-27 06:02:56,027 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-27 06:02:56,031 INFO L339 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, mConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-08-27 06:02:56,031 INFO L340 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2021-08-27 06:02:56,040 INFO L276 IsEmpty]: Start isEmpty. Operand has 95 states, 52 states have (on average 1.5192307692307692) internal successors, (79), 73 states have internal predecessors, (79), 11 states have call successors, (11), 10 states have call predecessors, (11), 10 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2021-08-27 06:02:56,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-08-27 06:02:56,050 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:02:56,050 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:02:56,051 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-27 06:02:56,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:02:56,057 INFO L82 PathProgramCache]: Analyzing trace with hash -1839111754, now seen corresponding path program 1 times [2021-08-27 06:02:56,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:02:56,064 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1661863744] [2021-08-27 06:02:56,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:02:56,065 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:02:56,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:02:56,067 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) [2021-08-27 06:02:56,108 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-27 06:02:56,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:02:56,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 06:02:56,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:02:56,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:02:56,348 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:02:56,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:02:56,427 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:02:56,427 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1661863744] [2021-08-27 06:02:56,427 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1661863744] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:02:56,428 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:02:56,428 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-08-27 06:02:56,429 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683903843] [2021-08-27 06:02:56,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:02:56,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:02:56,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:02:56,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:02:56,448 INFO L87 Difference]: Start difference. First operand has 95 states, 52 states have (on average 1.5192307692307692) internal successors, (79), 73 states have internal predecessors, (79), 11 states have call successors, (11), 10 states have call predecessors, (11), 10 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-27 06:02:56,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:02:56,468 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2021-08-27 06:02:56,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:02:56,470 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2021-08-27 06:02:56,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:02:56,474 INFO L225 Difference]: With dead ends: 24 [2021-08-27 06:02:56,474 INFO L226 Difference]: Without dead ends: 21 [2021-08-27 06:02:56,475 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.8ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:02:56,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-08-27 06:02:56,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-08-27 06:02:56,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 13 states have internal predecessors, (14), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-08-27 06:02:56,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2021-08-27 06:02:56,496 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 13 [2021-08-27 06:02:56,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:02:56,496 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2021-08-27 06:02:56,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-27 06:02:56,497 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2021-08-27 06:02:56,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-08-27 06:02:56,497 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:02:56,497 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:02:56,509 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-08-27 06:02:56,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:02:56,704 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-27 06:02:56,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:02:56,704 INFO L82 PathProgramCache]: Analyzing trace with hash -1177889137, now seen corresponding path program 1 times [2021-08-27 06:02:56,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:02:56,705 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1164814248] [2021-08-27 06:02:56,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:02:56,705 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:02:56,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:02:56,707 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) [2021-08-27 06:02:56,713 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-08-27 06:02:56,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:02:56,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 06:02:56,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:02:56,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:02:56,994 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:02:57,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:02:57,095 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:02:57,095 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1164814248] [2021-08-27 06:02:57,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1164814248] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:02:57,096 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:02:57,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 8 [2021-08-27 06:02:57,096 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089984337] [2021-08-27 06:02:57,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-27 06:02:57,099 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:02:57,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-27 06:02:57,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-08-27 06:02:57,102 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand has 9 states, 8 states have (on average 2.0) internal successors, (16), 7 states have internal predecessors, (16), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-27 06:02:57,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:02:57,177 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2021-08-27 06:02:57,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-27 06:02:57,178 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.0) internal successors, (16), 7 states have internal predecessors, (16), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) Word has length 14 [2021-08-27 06:02:57,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:02:57,179 INFO L225 Difference]: With dead ends: 28 [2021-08-27 06:02:57,179 INFO L226 Difference]: Without dead ends: 28 [2021-08-27 06:02:57,181 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 53.0ms TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-08-27 06:02:57,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-08-27 06:02:57,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 20. [2021-08-27 06:02:57,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 12 states have internal predecessors, (13), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-08-27 06:02:57,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2021-08-27 06:02:57,185 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 14 [2021-08-27 06:02:57,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:02:57,185 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2021-08-27 06:02:57,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.0) internal successors, (16), 7 states have internal predecessors, (16), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-27 06:02:57,185 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2021-08-27 06:02:57,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-08-27 06:02:57,186 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:02:57,187 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:02:57,195 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-08-27 06:02:57,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:02:57,393 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-27 06:02:57,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:02:57,393 INFO L82 PathProgramCache]: Analyzing trace with hash 2140142808, now seen corresponding path program 1 times [2021-08-27 06:02:57,394 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:02:57,394 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [106754262] [2021-08-27 06:02:57,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:02:57,394 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:02:57,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:02:57,396 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) [2021-08-27 06:02:57,397 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-08-27 06:02:57,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:02:57,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 06:02:57,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:02:57,604 INFO L388 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 [2021-08-27 06:02:57,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:02:57,638 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:02:57,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:02:57,711 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:02:57,711 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [106754262] [2021-08-27 06:02:57,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [106754262] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:02:57,711 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:02:57,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-08-27 06:02:57,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116835723] [2021-08-27 06:02:57,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:02:57,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:02:57,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:02:57,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:02:57,713 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-27 06:02:57,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:02:57,740 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2021-08-27 06:02:57,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:02:57,740 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2021-08-27 06:02:57,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:02:57,741 INFO L225 Difference]: With dead ends: 26 [2021-08-27 06:02:57,741 INFO L226 Difference]: Without dead ends: 26 [2021-08-27 06:02:57,741 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.4ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:02:57,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-08-27 06:02:57,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-08-27 06:02:57,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 16 states have (on average 1.125) internal successors, (18), 17 states have internal predecessors, (18), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2021-08-27 06:02:57,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2021-08-27 06:02:57,744 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 15 [2021-08-27 06:02:57,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:02:57,744 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2021-08-27 06:02:57,745 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-27 06:02:57,745 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2021-08-27 06:02:57,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-08-27 06:02:57,745 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:02:57,745 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:02:57,752 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-08-27 06:02:57,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:02:57,952 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-27 06:02:57,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:02:57,952 INFO L82 PathProgramCache]: Analyzing trace with hash -1267320807, now seen corresponding path program 1 times [2021-08-27 06:02:57,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:02:57,953 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1352807948] [2021-08-27 06:02:57,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:02:57,953 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:02:57,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:02:57,954 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) [2021-08-27 06:02:57,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-08-27 06:02:58,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:02:58,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 06:02:58,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:02:58,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:02:58,154 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:02:58,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:02:58,201 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:02:58,201 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1352807948] [2021-08-27 06:02:58,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1352807948] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:02:58,201 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:02:58,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-08-27 06:02:58,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315060820] [2021-08-27 06:02:58,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:02:58,202 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:02:58,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:02:58,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:02:58,203 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-27 06:02:58,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:02:58,214 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2021-08-27 06:02:58,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:02:58,215 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2021-08-27 06:02:58,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:02:58,215 INFO L225 Difference]: With dead ends: 27 [2021-08-27 06:02:58,216 INFO L226 Difference]: Without dead ends: 27 [2021-08-27 06:02:58,216 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.5ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:02:58,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-08-27 06:02:58,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 19. [2021-08-27 06:02:58,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-08-27 06:02:58,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2021-08-27 06:02:58,218 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 15 [2021-08-27 06:02:58,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:02:58,218 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2021-08-27 06:02:58,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-27 06:02:58,218 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2021-08-27 06:02:58,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-08-27 06:02:58,219 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:02:58,219 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:02:58,227 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-08-27 06:02:58,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:02:58,426 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-27 06:02:58,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:02:58,426 INFO L82 PathProgramCache]: Analyzing trace with hash -1794725483, now seen corresponding path program 1 times [2021-08-27 06:02:58,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:02:58,427 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2079827080] [2021-08-27 06:02:58,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:02:58,427 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:02:58,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:02:58,428 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) [2021-08-27 06:02:58,429 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-08-27 06:02:58,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:02:58,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 12 conjunts are in the unsatisfiable core [2021-08-27 06:02:58,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:02:58,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:02:58,772 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:03:02,922 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:03:02,923 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2079827080] [2021-08-27 06:03:02,923 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 06:03:02,923 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [418643110] [2021-08-27 06:03:02,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:03:02,924 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-08-27 06:03:02,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2021-08-27 06:03:02,945 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-08-27 06:03:02,975 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-08-27 06:03:03,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:03:03,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 14 conjunts are in the unsatisfiable core [2021-08-27 06:03:03,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:03:03,208 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-08-27 06:03:03,209 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 28 [2021-08-27 06:03:07,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:03:07,488 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:03:11,626 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 06:03:11,626 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [170747548] [2021-08-27 06:03:11,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:03:11,626 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 06:03:11,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 06:03:11,627 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 06:03:11,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-08-27 06:03:11,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:03:11,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-27 06:03:11,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:03:11,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:03:11,937 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:03:16,077 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 06:03:16,077 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:03:16,078 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-08-27 06:03:16,078 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-08-27 06:03:16,078 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-08-27 06:03:16,081 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-08-27 06:03:16,082 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-08-27 06:03:16,082 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-08-27 06:03:16,082 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-08-27 06:03:16,083 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-08-27 06:03:16,083 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-08-27 06:03:16,083 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-08-27 06:03:16,083 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-08-27 06:03:16,083 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-08-27 06:03:16,083 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-08-27 06:03:16,083 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-08-27 06:03:16,083 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-08-27 06:03:16,083 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-08-27 06:03:16,084 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-08-27 06:03:16,084 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-08-27 06:03:16,084 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-08-27 06:03:16,084 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-08-27 06:03:16,084 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-08-27 06:03:16,084 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-08-27 06:03:16,084 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-08-27 06:03:16,084 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-08-27 06:03:16,085 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-08-27 06:03:16,085 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-08-27 06:03:16,086 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-08-27 06:03:16,086 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-08-27 06:03:16,086 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-08-27 06:03:16,086 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-08-27 06:03:16,086 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-08-27 06:03:16,086 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-08-27 06:03:16,086 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-08-27 06:03:16,086 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-08-27 06:03:16,087 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-08-27 06:03:16,089 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-08-27 06:03:16,089 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-08-27 06:03:16,089 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-08-27 06:03:16,089 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-08-27 06:03:16,089 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-08-27 06:03:16,089 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-08-27 06:03:16,089 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-08-27 06:03:16,090 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-08-27 06:03:16,090 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-08-27 06:03:16,090 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-08-27 06:03:16,090 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-08-27 06:03:16,090 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:03:16,090 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:03:16,090 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:03:16,090 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:03:16,090 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:03:16,090 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:03:16,090 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-08-27 06:03:16,090 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-08-27 06:03:16,090 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-08-27 06:03:16,090 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-08-27 06:03:16,090 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-08-27 06:03:16,091 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-08-27 06:03:16,091 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-08-27 06:03:16,091 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-08-27 06:03:16,091 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:03:16,091 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:03:16,091 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:03:16,091 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:03:16,091 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:03:16,091 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:03:16,091 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-08-27 06:03:16,091 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-08-27 06:03:16,091 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-08-27 06:03:16,091 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-08-27 06:03:16,091 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-08-27 06:03:16,091 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-08-27 06:03:16,092 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-08-27 06:03:16,092 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-08-27 06:03:16,092 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:03:16,092 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:03:16,092 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:03:16,096 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2021-08-27 06:03:16,298 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-08-27 06:03:16,510 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-08-27 06:03:16,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 06:03:16,697 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-27 06:03:16,698 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-08-27 06:03:16,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 06:03:16 BoogieIcfgContainer [2021-08-27 06:03:16,706 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-27 06:03:16,707 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 06:03:16,707 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 06:03:16,707 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 06:03:16,707 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:02:55" (3/4) ... [2021-08-27 06:03:16,709 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 06:03:16,709 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 06:03:16,710 INFO L168 Benchmark]: Toolchain (without parser) took 22227.14 ms. Allocated memory was 65.0 MB in the beginning and 117.4 MB in the end (delta: 52.4 MB). Free memory was 44.2 MB in the beginning and 71.1 MB in the end (delta: -26.9 MB). Peak memory consumption was 26.0 MB. Max. memory is 16.1 GB. [2021-08-27 06:03:16,710 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 65.0 MB. Free memory was 47.4 MB in the beginning and 47.3 MB in the end (delta: 44.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:03:16,711 INFO L168 Benchmark]: CACSL2BoogieTranslator took 461.42 ms. Allocated memory is still 65.0 MB. Free memory was 43.9 MB in the beginning and 30.4 MB in the end (delta: 13.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-27 06:03:16,711 INFO L168 Benchmark]: Boogie Preprocessor took 89.38 ms. Allocated memory is still 79.7 MB. Free memory was 62.4 MB in the beginning and 57.9 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-27 06:03:16,711 INFO L168 Benchmark]: RCFGBuilder took 950.11 ms. Allocated memory is still 79.7 MB. Free memory was 57.9 MB in the beginning and 36.2 MB in the end (delta: 21.6 MB). Peak memory consumption was 31.1 MB. Max. memory is 16.1 GB. [2021-08-27 06:03:16,711 INFO L168 Benchmark]: TraceAbstraction took 20714.01 ms. Allocated memory was 79.7 MB in the beginning and 117.4 MB in the end (delta: 37.7 MB). Free memory was 35.7 MB in the beginning and 72.1 MB in the end (delta: -36.4 MB). Peak memory consumption was 2.3 MB. Max. memory is 16.1 GB. [2021-08-27 06:03:16,713 INFO L168 Benchmark]: Witness Printer took 2.60 ms. Allocated memory is still 117.4 MB. Free memory was 72.1 MB in the beginning and 71.1 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:03:16,714 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 65.0 MB. Free memory was 47.4 MB in the beginning and 47.3 MB in the end (delta: 44.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 461.42 ms. Allocated memory is still 65.0 MB. Free memory was 43.9 MB in the beginning and 30.4 MB in the end (delta: 13.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 89.38 ms. Allocated memory is still 79.7 MB. Free memory was 62.4 MB in the beginning and 57.9 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 950.11 ms. Allocated memory is still 79.7 MB. Free memory was 57.9 MB in the beginning and 36.2 MB in the end (delta: 21.6 MB). Peak memory consumption was 31.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 20714.01 ms. Allocated memory was 79.7 MB in the beginning and 117.4 MB in the end (delta: 37.7 MB). Free memory was 35.7 MB in the beginning and 72.1 MB in the end (delta: -36.4 MB). Peak memory consumption was 2.3 MB. Max. memory is 16.1 GB. * Witness Printer took 2.60 ms. Allocated memory is still 117.4 MB. Free memory was 72.1 MB in the beginning and 71.1 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 761]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: unable to decide satisfiability of path constraint, overapproximation of memtrack at line 761. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L762] CALL entry_point() [L758] CALL, EXPR ldv_malloc(sizeof(int)) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L758] RET, EXPR ldv_malloc(sizeof(int)) [L758] int *p = (int *)ldv_malloc(sizeof(int)); [L759] free(p) [L759] free(p) [L759] free(p) [L762] RET entry_point() - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 759]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 759]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 759]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 47 procedures, 335 locations, 74 error locations. Started 1 CEGAR loops. OverallTime: 20669.9ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 14.0ms, AutomataDifference: 166.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 78 SDtfs, 27 SDslu, 192 SDs, 0 SdLazy, 108 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 80.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 110 GetRequests, 92 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 90.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=95occurred in iteration=0, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 20.7ms AutomataMinimizationTime, 4 MinimizatonAttempts, 16 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 27.5ms SsaConstructionTime, 59.0ms SatisfiabilityAnalysisTime, 658.2ms InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 106 ConstructedInterpolants, 0 QuantifiedInterpolants, 293 SizeOfPredicates, 0 NumberOfNonLiveVariables, 251 ConjunctsInSsa, 18 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-08-27 06:03:16,743 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...