./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test15-2.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_test15-2.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 442b1a85eb0e15bc08ad4e4a2c765f805f0e6bcc .................................................................................................................................... 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_test15-2.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 442b1a85eb0e15bc08ad4e4a2c765f805f0e6bcc ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 06:09:11,963 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 06:09:11,965 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 06:09:12,003 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 06:09:12,003 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 06:09:12,007 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 06:09:12,009 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 06:09:12,015 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 06:09:12,017 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 06:09:12,023 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 06:09:12,024 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 06:09:12,028 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 06:09:12,028 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 06:09:12,030 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 06:09:12,032 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 06:09:12,036 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 06:09:12,037 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 06:09:12,037 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 06:09:12,038 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 06:09:12,039 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 06:09:12,040 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 06:09:12,044 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 06:09:12,046 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 06:09:12,047 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 06:09:12,052 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 06:09:12,053 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 06:09:12,054 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 06:09:12,055 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 06:09:12,056 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 06:09:12,056 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 06:09:12,057 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 06:09:12,057 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 06:09:12,059 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 06:09:12,073 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 06:09:12,074 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 06:09:12,075 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 06:09:12,075 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 06:09:12,075 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 06:09:12,076 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 06:09:12,077 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 06:09:12,078 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 06:09:12,078 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-08-27 06:09:12,117 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 06:09:12,118 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 06:09:12,119 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 06:09:12,119 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 06:09:12,120 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 06:09:12,121 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 06:09:12,121 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 06:09:12,121 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 06:09:12,121 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 06:09:12,121 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 06:09:12,122 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 06:09:12,122 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 06:09:12,122 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 06:09:12,123 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 06:09:12,123 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 06:09:12,123 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 06:09:12,123 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 06:09:12,123 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 06:09:12,124 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 06:09:12,124 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 06:09:12,124 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 06:09:12,124 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 06:09:12,124 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 06:09:12,125 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:09:12,125 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 06:09:12,125 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 06:09:12,125 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 06:09:12,125 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-27 06:09:12,125 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 06:09:12,126 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 442b1a85eb0e15bc08ad4e4a2c765f805f0e6bcc [2021-08-27 06:09:12,438 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 06:09:12,456 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 06:09:12,458 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 06:09:12,460 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 06:09:12,461 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 06:09:12,461 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test15-2.i [2021-08-27 06:09:12,519 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a4570443/cb84da3d86af42e88738c8f4cac2aaac/FLAGdde11d51a [2021-08-27 06:09:13,086 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 06:09:13,086 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test15-2.i [2021-08-27 06:09:13,114 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a4570443/cb84da3d86af42e88738c8f4cac2aaac/FLAGdde11d51a [2021-08-27 06:09:13,490 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a4570443/cb84da3d86af42e88738c8f4cac2aaac [2021-08-27 06:09:13,492 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 06:09:13,494 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 06:09:13,498 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 06:09:13,498 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 06:09:13,502 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 06:09:13,502 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:09:13" (1/1) ... [2021-08-27 06:09:13,503 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a0efcbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:09:13, skipping insertion in model container [2021-08-27 06:09:13,504 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:09:13" (1/1) ... [2021-08-27 06:09:13,509 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 06:09:13,548 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:09:13,954 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:09:13,972 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 06:09:13,973 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@52af2017 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:09:13, skipping insertion in model container [2021-08-27 06:09:13,973 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 06:09:13,974 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-08-27 06:09:13,976 INFO L168 Benchmark]: Toolchain (without parser) took 480.82 ms. Allocated memory is still 56.6 MB. Free memory was 33.7 MB in the beginning and 36.0 MB in the end (delta: -2.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-27 06:09:13,977 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 56.6 MB. Free memory was 38.8 MB in the beginning and 38.8 MB in the end (delta: 42.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:09:13,978 INFO L168 Benchmark]: CACSL2BoogieTranslator took 475.96 ms. Allocated memory is still 56.6 MB. Free memory was 33.5 MB in the beginning and 36.0 MB in the end (delta: -2.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-27 06:09:13,980 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 56.6 MB. Free memory was 38.8 MB in the beginning and 38.8 MB in the end (delta: 42.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 475.96 ms. Allocated memory is still 56.6 MB. Free memory was 33.5 MB in the beginning and 36.0 MB in the end (delta: -2.5 MB). Peak memory consumption was 12.6 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 06:09:15,591 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 06:09:15,593 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 06:09:15,629 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 06:09:15,630 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 06:09:15,634 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 06:09:15,636 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 06:09:15,649 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 06:09:15,652 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 06:09:15,656 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 06:09:15,657 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 06:09:15,661 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 06:09:15,661 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 06:09:15,663 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 06:09:15,665 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 06:09:15,666 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 06:09:15,667 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 06:09:15,670 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 06:09:15,674 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 06:09:15,679 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 06:09:15,680 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 06:09:15,682 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 06:09:15,684 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 06:09:15,684 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 06:09:15,689 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 06:09:15,689 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 06:09:15,689 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 06:09:15,691 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 06:09:15,691 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 06:09:15,692 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 06:09:15,692 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 06:09:15,693 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 06:09:15,694 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 06:09:15,695 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 06:09:15,696 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 06:09:15,696 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 06:09:15,697 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 06:09:15,697 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 06:09:15,697 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 06:09:15,698 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 06:09:15,699 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 06:09:15,703 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-08-27 06:09:15,738 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 06:09:15,738 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 06:09:15,739 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 06:09:15,739 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 06:09:15,741 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 06:09:15,741 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 06:09:15,742 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 06:09:15,742 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 06:09:15,742 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 06:09:15,742 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 06:09:15,743 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 06:09:15,743 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 06:09:15,743 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 06:09:15,743 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 06:09:15,744 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 06:09:15,744 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 06:09:15,744 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 06:09:15,744 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 06:09:15,744 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-27 06:09:15,745 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-27 06:09:15,745 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 06:09:15,745 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 06:09:15,745 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 06:09:15,745 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 06:09:15,745 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 06:09:15,746 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:09:15,746 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 06:09:15,746 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 06:09:15,746 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-27 06:09:15,746 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-27 06:09:15,746 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 06:09:15,747 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-27 06:09:15,747 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 442b1a85eb0e15bc08ad4e4a2c765f805f0e6bcc [2021-08-27 06:09:16,032 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 06:09:16,049 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 06:09:16,051 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 06:09:16,052 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 06:09:16,053 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 06:09:16,054 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test15-2.i [2021-08-27 06:09:16,103 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfacd8290/13ab28065f3c4b52a5a98af562b7eddb/FLAGbd7d02e77 [2021-08-27 06:09:16,669 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 06:09:16,670 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test15-2.i [2021-08-27 06:09:16,684 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfacd8290/13ab28065f3c4b52a5a98af562b7eddb/FLAGbd7d02e77 [2021-08-27 06:09:17,125 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfacd8290/13ab28065f3c4b52a5a98af562b7eddb [2021-08-27 06:09:17,127 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 06:09:17,129 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 06:09:17,142 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 06:09:17,143 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 06:09:17,146 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 06:09:17,147 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:09:17" (1/1) ... [2021-08-27 06:09:17,148 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2054d6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:09:17, skipping insertion in model container [2021-08-27 06:09:17,148 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:09:17" (1/1) ... [2021-08-27 06:09:17,154 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 06:09:17,194 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:09:17,627 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:09:17,651 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-08-27 06:09:17,662 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:09:17,729 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:09:17,741 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 06:09:17,814 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:09:17,854 INFO L208 MainTranslator]: Completed translation [2021-08-27 06:09:17,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:09:17 WrapperNode [2021-08-27 06:09:17,856 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 06:09:17,857 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 06:09:17,857 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 06:09:17,857 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 06:09:17,878 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:09:17" (1/1) ... [2021-08-27 06:09:17,878 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:09:17" (1/1) ... [2021-08-27 06:09:17,915 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:09:17" (1/1) ... [2021-08-27 06:09:17,925 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:09:17" (1/1) ... [2021-08-27 06:09:17,969 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:09:17" (1/1) ... [2021-08-27 06:09:17,985 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:09:17" (1/1) ... [2021-08-27 06:09:18,000 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:09:17" (1/1) ... [2021-08-27 06:09:18,011 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 06:09:18,021 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 06:09:18,022 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 06:09:18,022 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 06:09:18,023 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:09:17" (1/1) ... [2021-08-27 06:09:18,029 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:09:18,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 06:09:18,050 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 06:09:18,077 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 06:09:18,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-08-27 06:09:18,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 06:09:18,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-08-27 06:09:18,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-08-27 06:09:18,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-08-27 06:09:18,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-08-27 06:09:18,099 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-08-27 06:09:18,099 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-08-27 06:09:18,099 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-08-27 06:09:18,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-08-27 06:09:18,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-08-27 06:09:18,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-08-27 06:09:18,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-08-27 06:09:18,100 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-08-27 06:09:18,100 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-08-27 06:09:18,100 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-08-27 06:09:18,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-08-27 06:09:18,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-08-27 06:09:18,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-08-27 06:09:18,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-08-27 06:09:18,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-08-27 06:09:18,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-08-27 06:09:18,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-08-27 06:09:18,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-08-27 06:09:18,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-08-27 06:09:18,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-08-27 06:09:18,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-08-27 06:09:18,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-08-27 06:09:18,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-08-27 06:09:18,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-08-27 06:09:18,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-08-27 06:09:18,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-08-27 06:09:18,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-08-27 06:09:18,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-08-27 06:09:18,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-08-27 06:09:18,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-08-27 06:09:18,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-08-27 06:09:18,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-08-27 06:09:18,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-08-27 06:09:18,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-08-27 06:09:18,104 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-08-27 06:09:18,104 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-08-27 06:09:18,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_hid_get_drvdata [2021-08-27 06:09:18,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_hid_set_drvdata [2021-08-27 06:09:18,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_arvo_init_arvo_device_struct [2021-08-27 06:09:18,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_arvo_init_specials [2021-08-27 06:09:18,106 INFO L138 BoogieDeclarations]: Found implementation of procedure lvd_arvo_remove_specials [2021-08-27 06:09:18,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_arvo_probe [2021-08-27 06:09:18,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_arvo_remove [2021-08-27 06:09:18,107 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-08-27 06:09:18,107 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-08-27 06:09:18,107 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-08-27 06:09:18,107 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-08-27 06:09:18,107 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-08-27 06:09:18,108 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-08-27 06:09:18,108 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-08-27 06:09:18,108 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-08-27 06:09:18,108 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-08-27 06:09:18,108 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-08-27 06:09:18,109 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-08-27 06:09:18,109 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-08-27 06:09:18,109 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-08-27 06:09:18,110 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-08-27 06:09:18,110 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-08-27 06:09:18,111 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-08-27 06:09:18,111 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-08-27 06:09:18,111 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-08-27 06:09:18,111 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-08-27 06:09:18,111 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-08-27 06:09:18,111 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-08-27 06:09:18,112 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-08-27 06:09:18,112 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-08-27 06:09:18,112 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-08-27 06:09:18,112 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-08-27 06:09:18,112 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-08-27 06:09:18,112 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-08-27 06:09:18,112 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-08-27 06:09:18,113 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-08-27 06:09:18,113 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-08-27 06:09:18,113 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-08-27 06:09:18,114 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-08-27 06:09:18,114 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-08-27 06:09:18,114 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-08-27 06:09:18,114 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-08-27 06:09:18,114 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-08-27 06:09:18,114 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-08-27 06:09:18,114 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-08-27 06:09:18,115 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-08-27 06:09:18,115 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-08-27 06:09:18,115 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-08-27 06:09:18,115 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-08-27 06:09:18,115 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-08-27 06:09:18,115 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-08-27 06:09:18,115 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-08-27 06:09:18,116 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-08-27 06:09:18,116 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-08-27 06:09:18,116 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-08-27 06:09:18,116 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-08-27 06:09:18,117 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-08-27 06:09:18,117 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-08-27 06:09:18,117 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-08-27 06:09:18,117 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-08-27 06:09:18,117 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-08-27 06:09:18,117 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-08-27 06:09:18,117 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-08-27 06:09:18,118 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-08-27 06:09:18,118 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-08-27 06:09:18,118 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-08-27 06:09:18,118 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-08-27 06:09:18,118 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-08-27 06:09:18,118 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-08-27 06:09:18,118 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-08-27 06:09:18,119 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-08-27 06:09:18,119 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-08-27 06:09:18,119 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-08-27 06:09:18,119 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-08-27 06:09:18,119 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-08-27 06:09:18,119 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-08-27 06:09:18,119 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-08-27 06:09:18,120 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-08-27 06:09:18,120 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-08-27 06:09:18,120 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-08-27 06:09:18,121 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-08-27 06:09:18,122 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-08-27 06:09:18,124 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-08-27 06:09:18,124 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-08-27 06:09:18,124 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-08-27 06:09:18,125 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-08-27 06:09:18,126 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-08-27 06:09:18,126 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-08-27 06:09:18,126 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-08-27 06:09:18,126 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-08-27 06:09:18,127 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-08-27 06:09:18,133 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-08-27 06:09:18,133 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-08-27 06:09:18,134 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-08-27 06:09:18,134 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-08-27 06:09:18,134 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-08-27 06:09:18,134 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-08-27 06:09:18,134 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-08-27 06:09:18,134 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-08-27 06:09:18,134 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-08-27 06:09:18,135 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-08-27 06:09:18,135 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-08-27 06:09:18,135 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-08-27 06:09:18,135 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-08-27 06:09:18,135 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-08-27 06:09:18,135 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-08-27 06:09:18,135 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-08-27 06:09:18,136 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-08-27 06:09:18,136 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-08-27 06:09:18,136 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-08-27 06:09:18,136 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-08-27 06:09:18,136 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-08-27 06:09:18,136 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-08-27 06:09:18,136 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-08-27 06:09:18,137 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-08-27 06:09:18,137 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-08-27 06:09:18,137 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-08-27 06:09:18,137 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-08-27 06:09:18,137 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-08-27 06:09:18,137 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-08-27 06:09:18,137 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-08-27 06:09:18,137 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-08-27 06:09:18,138 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-08-27 06:09:18,138 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-08-27 06:09:18,138 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-08-27 06:09:18,138 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-08-27 06:09:18,138 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-27 06:09:18,138 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-08-27 06:09:18,138 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-08-27 06:09:18,138 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-08-27 06:09:18,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-08-27 06:09:18,139 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-08-27 06:09:18,139 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-08-27 06:09:18,139 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-08-27 06:09:18,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-08-27 06:09:18,139 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-08-27 06:09:18,139 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-08-27 06:09:18,140 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-08-27 06:09:18,140 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-08-27 06:09:18,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-08-27 06:09:18,140 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-08-27 06:09:18,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-27 06:09:18,140 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-08-27 06:09:18,140 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-08-27 06:09:18,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-08-27 06:09:18,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-08-27 06:09:18,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-08-27 06:09:18,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-08-27 06:09:18,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-08-27 06:09:18,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-08-27 06:09:18,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-08-27 06:09:18,141 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-08-27 06:09:18,142 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-08-27 06:09:18,142 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-08-27 06:09:18,142 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-08-27 06:09:18,142 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-08-27 06:09:18,142 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-08-27 06:09:18,142 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-08-27 06:09:18,142 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-08-27 06:09:18,143 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-08-27 06:09:18,143 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-08-27 06:09:18,143 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-08-27 06:09:18,143 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-08-27 06:09:18,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-08-27 06:09:18,143 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-08-27 06:09:18,143 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-08-27 06:09:18,144 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_hid_get_drvdata [2021-08-27 06:09:18,144 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_hid_set_drvdata [2021-08-27 06:09:18,144 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_arvo_init_arvo_device_struct [2021-08-27 06:09:18,144 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_arvo_init_specials [2021-08-27 06:09:18,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-08-27 06:09:18,144 INFO L130 BoogieDeclarations]: Found specification of procedure lvd_arvo_remove_specials [2021-08-27 06:09:18,144 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_arvo_probe [2021-08-27 06:09:18,144 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_arvo_remove [2021-08-27 06:09:18,145 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-08-27 06:09:18,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-08-27 06:09:18,145 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-08-27 06:09:18,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-08-27 06:09:18,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 06:09:18,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-08-27 06:09:18,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 06:09:18,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-08-27 06:09:18,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-08-27 06:09:18,146 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-08-27 06:09:18,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-08-27 06:09:18,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-08-27 06:09:18,146 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-08-27 06:09:18,146 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-08-27 06:09:18,900 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 06:09:19,437 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 06:09:19,917 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 06:09:19,919 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-08-27 06:09:19,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:09:19 BoogieIcfgContainer [2021-08-27 06:09:19,923 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 06:09:19,924 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-27 06:09:19,925 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-27 06:09:19,927 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-27 06:09:19,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 06:09:17" (1/3) ... [2021-08-27 06:09:19,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7648b8b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:09:19, skipping insertion in model container [2021-08-27 06:09:19,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:09:17" (2/3) ... [2021-08-27 06:09:19,929 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7648b8b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:09:19, skipping insertion in model container [2021-08-27 06:09:19,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:09:19" (3/3) ... [2021-08-27 06:09:19,930 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test15-2.i [2021-08-27 06:09:19,935 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-27 06:09:19,935 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 116 error locations. [2021-08-27 06:09:19,981 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-27 06:09:19,989 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 06:09:19,989 INFO L340 AbstractCegarLoop]: Starting to check reachability of 116 error locations. [2021-08-27 06:09:20,015 INFO L276 IsEmpty]: Start isEmpty. Operand has 250 states, 134 states have (on average 1.6194029850746268) internal successors, (217), 202 states have internal predecessors, (217), 26 states have call successors, (26), 22 states have call predecessors, (26), 22 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2021-08-27 06:09:20,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-08-27 06:09:20,034 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:09:20,034 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:09:20,035 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 112 more)] === [2021-08-27 06:09:20,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:09:20,038 INFO L82 PathProgramCache]: Analyzing trace with hash -1591694051, now seen corresponding path program 1 times [2021-08-27 06:09:20,045 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:09:20,046 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2016993374] [2021-08-27 06:09:20,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:09:20,046 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:09:20,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:09:20,049 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 06:09:20,060 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 06:09:20,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:09:20,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 06:09:20,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:09:20,446 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 06:09:20,446 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:09:20,585 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 06:09:20,586 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:09:20,586 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2016993374] [2021-08-27 06:09:20,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2016993374] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:09:20,588 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:09:20,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-08-27 06:09:20,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038866740] [2021-08-27 06:09:20,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:09:20,594 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:09:20,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:09:20,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:09:20,611 INFO L87 Difference]: Start difference. First operand has 250 states, 134 states have (on average 1.6194029850746268) internal successors, (217), 202 states have internal predecessors, (217), 26 states have call successors, (26), 22 states have call predecessors, (26), 22 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:09:20,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:09:20,741 INFO L93 Difference]: Finished difference Result 231 states and 256 transitions. [2021-08-27 06:09:20,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:09:20,743 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 16 [2021-08-27 06:09:20,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:09:20,756 INFO L225 Difference]: With dead ends: 231 [2021-08-27 06:09:20,756 INFO L226 Difference]: Without dead ends: 228 [2021-08-27 06:09:20,757 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.1ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:09:20,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2021-08-27 06:09:20,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 181. [2021-08-27 06:09:20,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 96 states have (on average 1.625) internal successors, (156), 146 states have internal predecessors, (156), 19 states have call successors, (19), 16 states have call predecessors, (19), 16 states have return successors, (21), 19 states have call predecessors, (21), 18 states have call successors, (21) [2021-08-27 06:09:20,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 196 transitions. [2021-08-27 06:09:20,825 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 196 transitions. Word has length 16 [2021-08-27 06:09:20,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:09:20,825 INFO L470 AbstractCegarLoop]: Abstraction has 181 states and 196 transitions. [2021-08-27 06:09:20,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:09:20,826 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 196 transitions. [2021-08-27 06:09:20,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-08-27 06:09:20,827 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:09:20,827 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:09:20,839 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 06:09:21,039 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 06:09:21,039 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 112 more)] === [2021-08-27 06:09:21,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:09:21,040 INFO L82 PathProgramCache]: Analyzing trace with hash 151116284, now seen corresponding path program 1 times [2021-08-27 06:09:21,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:09:21,040 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1366421093] [2021-08-27 06:09:21,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:09:21,040 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:09:21,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:09:21,042 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 06:09:21,044 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 06:09:21,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:09:21,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 06:09:21,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:09:21,335 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 06:09:21,335 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:09:21,454 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 06:09:21,454 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:09:21,458 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1366421093] [2021-08-27 06:09:21,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1366421093] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:09:21,458 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:09:21,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-08-27 06:09:21,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703207908] [2021-08-27 06:09:21,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 06:09:21,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:09:21,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 06:09:21,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 06:09:21,462 INFO L87 Difference]: Start difference. First operand 181 states and 196 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-08-27 06:09:21,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:09:21,777 INFO L93 Difference]: Finished difference Result 241 states and 267 transitions. [2021-08-27 06:09:21,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 06:09:21,778 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 16 [2021-08-27 06:09:21,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:09:21,780 INFO L225 Difference]: With dead ends: 241 [2021-08-27 06:09:21,780 INFO L226 Difference]: Without dead ends: 238 [2021-08-27 06:09:21,781 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 06:09:21,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2021-08-27 06:09:21,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 177. [2021-08-27 06:09:21,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 93 states have (on average 1.6344086021505377) internal successors, (152), 143 states have internal predecessors, (152), 19 states have call successors, (19), 16 states have call predecessors, (19), 15 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2021-08-27 06:09:21,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 189 transitions. [2021-08-27 06:09:21,791 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 189 transitions. Word has length 16 [2021-08-27 06:09:21,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:09:21,791 INFO L470 AbstractCegarLoop]: Abstraction has 177 states and 189 transitions. [2021-08-27 06:09:21,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-08-27 06:09:21,792 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 189 transitions. [2021-08-27 06:09:21,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-08-27 06:09:21,792 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:09:21,793 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:09:21,804 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 06:09:22,001 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 06:09:22,002 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting entry_pointErr18ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 112 more)] === [2021-08-27 06:09:22,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:09:22,002 INFO L82 PathProgramCache]: Analyzing trace with hash 402043634, now seen corresponding path program 1 times [2021-08-27 06:09:22,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:09:22,003 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1359669541] [2021-08-27 06:09:22,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:09:22,003 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:09:22,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:09:22,004 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 06:09:22,006 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 06:09:22,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:09:22,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 06:09:22,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:09:22,291 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-27 06:09:22,291 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:09:22,385 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-27 06:09:22,385 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:09:22,385 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1359669541] [2021-08-27 06:09:22,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1359669541] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:09:22,385 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:09:22,388 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-08-27 06:09:22,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880267370] [2021-08-27 06:09:22,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:09:22,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:09:22,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:09:22,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:09:22,392 INFO L87 Difference]: Start difference. First operand 177 states and 189 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:09:22,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:09:22,511 INFO L93 Difference]: Finished difference Result 225 states and 246 transitions. [2021-08-27 06:09:22,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:09:22,513 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 21 [2021-08-27 06:09:22,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:09:22,515 INFO L225 Difference]: With dead ends: 225 [2021-08-27 06:09:22,515 INFO L226 Difference]: Without dead ends: 225 [2021-08-27 06:09:22,515 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.5ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:09:22,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2021-08-27 06:09:22,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 181. [2021-08-27 06:09:22,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 96 states have (on average 1.6145833333333333) internal successors, (155), 146 states have internal predecessors, (155), 19 states have call successors, (19), 16 states have call predecessors, (19), 16 states have return successors, (21), 19 states have call predecessors, (21), 18 states have call successors, (21) [2021-08-27 06:09:22,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 195 transitions. [2021-08-27 06:09:22,530 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 195 transitions. Word has length 21 [2021-08-27 06:09:22,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:09:22,530 INFO L470 AbstractCegarLoop]: Abstraction has 181 states and 195 transitions. [2021-08-27 06:09:22,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:09:22,531 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 195 transitions. [2021-08-27 06:09:22,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-08-27 06:09:22,532 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:09:22,532 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:09:22,547 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 06:09:22,743 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 06:09:22,743 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting entry_pointErr18ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 112 more)] === [2021-08-27 06:09:22,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:09:22,743 INFO L82 PathProgramCache]: Analyzing trace with hash 430672785, now seen corresponding path program 1 times [2021-08-27 06:09:22,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:09:22,744 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1958375748] [2021-08-27 06:09:22,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:09:22,744 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:09:22,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:09:22,745 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 06:09:22,746 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 06:09:22,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:09:22,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 06:09:22,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:09:23,072 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-27 06:09:23,072 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:09:23,179 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-27 06:09:23,179 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:09:23,180 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1958375748] [2021-08-27 06:09:23,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1958375748] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-27 06:09:23,180 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 06:09:23,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-08-27 06:09:23,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653916535] [2021-08-27 06:09:23,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:09:23,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:09:23,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:09:23,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:09:23,182 INFO L87 Difference]: Start difference. First operand 181 states and 195 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-08-27 06:09:23,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:09:23,206 INFO L93 Difference]: Finished difference Result 180 states and 194 transitions. [2021-08-27 06:09:23,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:09:23,207 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 21 [2021-08-27 06:09:23,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:09:23,208 INFO L225 Difference]: With dead ends: 180 [2021-08-27 06:09:23,208 INFO L226 Difference]: Without dead ends: 180 [2021-08-27 06:09:23,209 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.8ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:09:23,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2021-08-27 06:09:23,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2021-08-27 06:09:23,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 96 states have (on average 1.6041666666666667) internal successors, (154), 145 states have internal predecessors, (154), 19 states have call successors, (19), 16 states have call predecessors, (19), 16 states have return successors, (21), 19 states have call predecessors, (21), 18 states have call successors, (21) [2021-08-27 06:09:23,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 194 transitions. [2021-08-27 06:09:23,215 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 194 transitions. Word has length 21 [2021-08-27 06:09:23,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:09:23,215 INFO L470 AbstractCegarLoop]: Abstraction has 180 states and 194 transitions. [2021-08-27 06:09:23,215 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-08-27 06:09:23,216 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 194 transitions. [2021-08-27 06:09:23,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-08-27 06:09:23,216 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:09:23,216 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:09:23,228 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 06:09:23,425 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 06:09:23,425 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting entry_pointErr19ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 112 more)] === [2021-08-27 06:09:23,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:09:23,426 INFO L82 PathProgramCache]: Analyzing trace with hash 465954995, now seen corresponding path program 1 times [2021-08-27 06:09:23,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:09:23,426 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [138994622] [2021-08-27 06:09:23,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:09:23,427 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:09:23,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:09:23,428 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 06:09:23,449 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 06:09:23,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:09:23,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 06:09:23,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:09:24,018 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:09:24,019 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:09:24,187 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-27 06:09:24,187 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:09:24,188 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [138994622] [2021-08-27 06:09:24,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [138994622] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-27 06:09:24,188 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 06:09:24,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 9 [2021-08-27 06:09:24,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459308982] [2021-08-27 06:09:24,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-27 06:09:24,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:09:24,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-27 06:09:24,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-08-27 06:09:24,190 INFO L87 Difference]: Start difference. First operand 180 states and 194 transitions. Second operand has 10 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 4 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-08-27 06:09:24,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:09:24,959 INFO L93 Difference]: Finished difference Result 349 states and 383 transitions. [2021-08-27 06:09:24,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-27 06:09:24,960 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 4 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) Word has length 22 [2021-08-27 06:09:24,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:09:24,962 INFO L225 Difference]: With dead ends: 349 [2021-08-27 06:09:24,962 INFO L226 Difference]: Without dead ends: 349 [2021-08-27 06:09:24,962 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 165.3ms TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2021-08-27 06:09:24,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2021-08-27 06:09:24,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 223. [2021-08-27 06:09:24,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 129 states have (on average 1.62015503875969) internal successors, (209), 177 states have internal predecessors, (209), 25 states have call successors, (25), 21 states have call predecessors, (25), 21 states have return successors, (31), 25 states have call predecessors, (31), 24 states have call successors, (31) [2021-08-27 06:09:24,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 265 transitions. [2021-08-27 06:09:24,973 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 265 transitions. Word has length 22 [2021-08-27 06:09:24,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:09:24,973 INFO L470 AbstractCegarLoop]: Abstraction has 223 states and 265 transitions. [2021-08-27 06:09:24,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 4 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-08-27 06:09:24,973 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 265 transitions. [2021-08-27 06:09:24,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-08-27 06:09:24,974 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:09:24,974 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:09:24,985 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 06:09:25,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:09:25,183 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting entry_pointErr20ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 112 more)] === [2021-08-27 06:09:25,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:09:25,184 INFO L82 PathProgramCache]: Analyzing trace with hash 1559703507, now seen corresponding path program 1 times [2021-08-27 06:09:25,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:09:25,184 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1856799185] [2021-08-27 06:09:25,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:09:25,184 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:09:25,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:09:25,185 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:09:25,185 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-08-27 06:09:25,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:09:25,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 06:09:25,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:09:25,452 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 06:09:25,553 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:09:25,554 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:09:25,749 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:09:25,749 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:09:25,749 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1856799185] [2021-08-27 06:09:25,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1856799185] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-27 06:09:25,749 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 06:09:25,749 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-08-27 06:09:25,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180307200] [2021-08-27 06:09:25,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-27 06:09:25,750 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:09:25,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-27 06:09:25,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-27 06:09:25,757 INFO L87 Difference]: Start difference. First operand 223 states and 265 transitions. Second operand has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-27 06:09:26,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:09:26,923 INFO L93 Difference]: Finished difference Result 354 states and 408 transitions. [2021-08-27 06:09:26,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-27 06:09:26,924 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 23 [2021-08-27 06:09:26,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:09:26,926 INFO L225 Difference]: With dead ends: 354 [2021-08-27 06:09:26,926 INFO L226 Difference]: Without dead ends: 354 [2021-08-27 06:09:26,927 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 37 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 87.1ms TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-08-27 06:09:26,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2021-08-27 06:09:26,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 244. [2021-08-27 06:09:26,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 147 states have (on average 1.619047619047619) internal successors, (238), 195 states have internal predecessors, (238), 26 states have call successors, (26), 21 states have call predecessors, (26), 23 states have return successors, (35), 28 states have call predecessors, (35), 25 states have call successors, (35) [2021-08-27 06:09:26,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 299 transitions. [2021-08-27 06:09:26,937 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 299 transitions. Word has length 23 [2021-08-27 06:09:26,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:09:26,938 INFO L470 AbstractCegarLoop]: Abstraction has 244 states and 299 transitions. [2021-08-27 06:09:26,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-27 06:09:26,938 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 299 transitions. [2021-08-27 06:09:26,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-08-27 06:09:26,942 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:09:26,942 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:09:26,954 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-08-27 06:09:27,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:09:27,153 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting entry_pointErr20ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 112 more)] === [2021-08-27 06:09:27,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:09:27,153 INFO L82 PathProgramCache]: Analyzing trace with hash -1227711980, now seen corresponding path program 1 times [2021-08-27 06:09:27,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:09:27,155 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [286082809] [2021-08-27 06:09:27,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:09:27,156 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:09:27,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:09:27,157 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:09:27,159 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-08-27 06:09:27,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:09:27,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-27 06:09:27,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:09:27,501 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:09:27,501 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:09:27,615 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-27 06:09:27,615 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:09:27,615 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [286082809] [2021-08-27 06:09:27,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [286082809] provided 1 perfect and 1 imperfect interpolant sequences [2021-08-27 06:09:27,615 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-27 06:09:27,615 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2021-08-27 06:09:27,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97329870] [2021-08-27 06:09:27,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:09:27,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:09:27,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:09:27,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:09:27,617 INFO L87 Difference]: Start difference. First operand 244 states and 299 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-08-27 06:09:27,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:09:27,642 INFO L93 Difference]: Finished difference Result 194 states and 208 transitions. [2021-08-27 06:09:27,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:09:27,643 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23 [2021-08-27 06:09:27,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:09:27,644 INFO L225 Difference]: With dead ends: 194 [2021-08-27 06:09:27,644 INFO L226 Difference]: Without dead ends: 190 [2021-08-27 06:09:27,644 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.8ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:09:27,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2021-08-27 06:09:27,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 183. [2021-08-27 06:09:27,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 101 states have (on average 1.5544554455445545) internal successors, (157), 147 states have internal predecessors, (157), 19 states have call successors, (19), 17 states have call predecessors, (19), 16 states have return successors, (20), 19 states have call predecessors, (20), 18 states have call successors, (20) [2021-08-27 06:09:27,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 196 transitions. [2021-08-27 06:09:27,649 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 196 transitions. Word has length 23 [2021-08-27 06:09:27,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:09:27,650 INFO L470 AbstractCegarLoop]: Abstraction has 183 states and 196 transitions. [2021-08-27 06:09:27,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-08-27 06:09:27,650 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 196 transitions. [2021-08-27 06:09:27,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-08-27 06:09:27,650 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:09:27,651 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:09:27,665 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-08-27 06:09:27,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:09:27,860 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 112 more)] === [2021-08-27 06:09:27,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:09:27,860 INFO L82 PathProgramCache]: Analyzing trace with hash -399574101, now seen corresponding path program 1 times [2021-08-27 06:09:27,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:09:27,861 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1628405156] [2021-08-27 06:09:27,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:09:27,861 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:09:27,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:09:27,861 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:09:27,862 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-08-27 06:09:28,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:09:28,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-27 06:09:28,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:09:28,135 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 06:09:28,265 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-08-27 06:09:28,266 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 22 [2021-08-27 06:09:28,284 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-27 06:09:28,285 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:09:28,498 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-27 06:09:28,498 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:09:28,499 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1628405156] [2021-08-27 06:09:28,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1628405156] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-27 06:09:28,499 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 06:09:28,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 7 [2021-08-27 06:09:28,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475526551] [2021-08-27 06:09:28,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-27 06:09:28,502 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:09:28,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-27 06:09:28,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-27 06:09:28,503 INFO L87 Difference]: Start difference. First operand 183 states and 196 transitions. Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-27 06:09:29,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:09:29,624 INFO L93 Difference]: Finished difference Result 254 states and 283 transitions. [2021-08-27 06:09:29,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-27 06:09:29,624 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 26 [2021-08-27 06:09:29,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:09:29,626 INFO L225 Difference]: With dead ends: 254 [2021-08-27 06:09:29,626 INFO L226 Difference]: Without dead ends: 254 [2021-08-27 06:09:29,626 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 41 SyntacticMatches, 5 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 158.7ms TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2021-08-27 06:09:29,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2021-08-27 06:09:29,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 200. [2021-08-27 06:09:29,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 114 states have (on average 1.5263157894736843) internal successors, (174), 160 states have internal predecessors, (174), 21 states have call successors, (21), 17 states have call predecessors, (21), 20 states have return successors, (28), 24 states have call predecessors, (28), 20 states have call successors, (28) [2021-08-27 06:09:29,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 223 transitions. [2021-08-27 06:09:29,633 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 223 transitions. Word has length 26 [2021-08-27 06:09:29,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:09:29,634 INFO L470 AbstractCegarLoop]: Abstraction has 200 states and 223 transitions. [2021-08-27 06:09:29,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-27 06:09:29,634 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 223 transitions. [2021-08-27 06:09:29,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-08-27 06:09:29,635 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:09:29,635 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:09:29,647 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-08-27 06:09:29,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:09:29,844 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting entry_pointErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 112 more)] === [2021-08-27 06:09:29,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:09:29,845 INFO L82 PathProgramCache]: Analyzing trace with hash -399574100, now seen corresponding path program 1 times [2021-08-27 06:09:29,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:09:29,845 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1463177824] [2021-08-27 06:09:29,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:09:29,845 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:09:29,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:09:29,846 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:09:29,847 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-08-27 06:09:30,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:09:30,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 16 conjunts are in the unsatisfiable core [2021-08-27 06:09:30,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:09:30,190 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 06:09:30,196 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 06:09:32,435 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-08-27 06:09:32,435 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 31 [2021-08-27 06:09:32,445 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-08-27 06:09:32,446 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 23 [2021-08-27 06:09:32,473 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-27 06:09:32,473 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:09:54,006 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 26 [2021-08-27 06:09:54,125 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-27 06:09:54,125 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:09:54,126 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1463177824] [2021-08-27 06:09:54,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1463177824] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-27 06:09:54,126 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 06:09:54,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2021-08-27 06:09:54,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356505703] [2021-08-27 06:09:54,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-08-27 06:09:54,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:09:54,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-08-27 06:09:54,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=193, Unknown=9, NotChecked=0, Total=240 [2021-08-27 06:09:54,127 INFO L87 Difference]: Start difference. First operand 200 states and 223 transitions. Second operand has 16 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 12 states have internal predecessors, (25), 3 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2021-08-27 06:13:28,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:13:28,575 INFO L93 Difference]: Finished difference Result 264 states and 301 transitions. [2021-08-27 06:13:28,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-27 06:13:28,576 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 12 states have internal predecessors, (25), 3 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) Word has length 26 [2021-08-27 06:13:28,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:13:28,577 INFO L225 Difference]: With dead ends: 264 [2021-08-27 06:13:28,577 INFO L226 Difference]: Without dead ends: 264 [2021-08-27 06:13:28,578 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 39929.7ms TimeCoverageRelationStatistics Valid=92, Invalid=448, Unknown=12, NotChecked=0, Total=552 [2021-08-27 06:13:28,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2021-08-27 06:13:28,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 229. [2021-08-27 06:13:28,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 138 states have (on average 1.5144927536231885) internal successors, (209), 184 states have internal predecessors, (209), 25 states have call successors, (25), 17 states have call predecessors, (25), 22 states have return successors, (39), 32 states have call predecessors, (39), 24 states have call successors, (39) [2021-08-27 06:13:28,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 273 transitions. [2021-08-27 06:13:28,596 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 273 transitions. Word has length 26 [2021-08-27 06:13:28,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:13:28,597 INFO L470 AbstractCegarLoop]: Abstraction has 229 states and 273 transitions. [2021-08-27 06:13:28,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 12 states have internal predecessors, (25), 3 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2021-08-27 06:13:28,597 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 273 transitions. [2021-08-27 06:13:28,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-08-27 06:13:28,599 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:13:28,599 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:13:28,606 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-08-27 06:13:28,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:13:28,800 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 112 more)] === [2021-08-27 06:13:28,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:13:28,800 INFO L82 PathProgramCache]: Analyzing trace with hash 2098441836, now seen corresponding path program 1 times [2021-08-27 06:13:28,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:13:28,801 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1488939752] [2021-08-27 06:13:28,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:13:28,801 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:13:28,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:13:28,802 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:13:28,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-08-27 06:13:29,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:13:29,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-27 06:13:29,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:13:29,240 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-27 06:13:29,240 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:13:29,375 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-08-27 06:13:29,375 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:13:29,375 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1488939752] [2021-08-27 06:13:29,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1488939752] provided 1 perfect and 1 imperfect interpolant sequences [2021-08-27 06:13:29,376 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-27 06:13:29,376 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2021-08-27 06:13:29,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803146916] [2021-08-27 06:13:29,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:13:29,376 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:13:29,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:13:29,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:13:29,377 INFO L87 Difference]: Start difference. First operand 229 states and 273 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-27 06:13:29,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:13:29,433 INFO L93 Difference]: Finished difference Result 201 states and 219 transitions. [2021-08-27 06:13:29,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:13:29,434 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 26 [2021-08-27 06:13:29,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:13:29,435 INFO L225 Difference]: With dead ends: 201 [2021-08-27 06:13:29,435 INFO L226 Difference]: Without dead ends: 201 [2021-08-27 06:13:29,435 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 41.8ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:13:29,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2021-08-27 06:13:29,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 192. [2021-08-27 06:13:29,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 113 states have (on average 1.4424778761061947) internal successors, (163), 153 states have internal predecessors, (163), 20 states have call successors, (20), 17 states have call predecessors, (20), 20 states have return successors, (26), 23 states have call predecessors, (26), 19 states have call successors, (26) [2021-08-27 06:13:29,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 209 transitions. [2021-08-27 06:13:29,440 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 209 transitions. Word has length 26 [2021-08-27 06:13:29,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:13:29,440 INFO L470 AbstractCegarLoop]: Abstraction has 192 states and 209 transitions. [2021-08-27 06:13:29,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-27 06:13:29,440 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 209 transitions. [2021-08-27 06:13:29,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-08-27 06:13:29,441 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:13:29,441 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:13:29,452 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-08-27 06:13:29,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:13:29,642 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 112 more)] === [2021-08-27 06:13:29,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:13:29,642 INFO L82 PathProgramCache]: Analyzing trace with hash -2123448590, now seen corresponding path program 1 times [2021-08-27 06:13:29,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:13:29,642 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [51899081] [2021-08-27 06:13:29,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:13:29,642 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:13:29,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:13:29,643 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:13:29,644 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-08-27 06:13:29,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:13:29,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 14 conjunts are in the unsatisfiable core [2021-08-27 06:13:29,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:13:30,164 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-27 06:13:30,165 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:13:34,335 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:13:34,336 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [51899081] [2021-08-27 06:13:34,336 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 06:13:34,336 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1690124036] [2021-08-27 06:13:34,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:13:34,336 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-08-27 06:13:34,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2021-08-27 06:13:34,345 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-08-27 06:13:34,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2021-08-27 06:13:34,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:13:34,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 16 conjunts are in the unsatisfiable core [2021-08-27 06:13:34,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:13:34,823 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-08-27 06:13:34,824 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 24 treesize of output 27 [2021-08-27 06:13:39,241 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-27 06:13:39,242 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:13:43,393 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 06:13:43,393 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [982848144] [2021-08-27 06:13:43,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:13:43,394 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 06:13:43,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 06:13:43,395 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 06:13:43,395 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-08-27 06:13:43,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:13:43,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 13 conjunts are in the unsatisfiable core [2021-08-27 06:13:43,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:13:43,947 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-27 06:13:43,948 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:13:48,114 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 06:13:48,114 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:13:48,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-08-27 06:13:48,115 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-08-27 06:13:48,115 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-08-27 06:13:48,118 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-08-27 06:13:48,119 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-08-27 06:13:48,119 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-08-27 06:13:48,119 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-08-27 06:13:48,119 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-08-27 06:13:48,120 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-08-27 06:13:48,120 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-08-27 06:13:48,120 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-08-27 06:13:48,120 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-08-27 06:13:48,120 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-08-27 06:13:48,120 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-08-27 06:13:48,120 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-08-27 06:13:48,121 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-08-27 06:13:48,121 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-08-27 06:13:48,121 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-08-27 06:13:48,121 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-08-27 06:13:48,121 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-08-27 06:13:48,121 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-08-27 06:13:48,121 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-08-27 06:13:48,122 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-08-27 06:13:48,122 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-08-27 06:13:48,122 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_arvo_init_specialsErr0REQUIRES_VIOLATION [2021-08-27 06:13:48,122 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_arvo_init_specialsErr1REQUIRES_VIOLATION [2021-08-27 06:13:48,122 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_arvo_init_specialsErr2REQUIRES_VIOLATION [2021-08-27 06:13:48,122 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_arvo_init_specialsErr3REQUIRES_VIOLATION [2021-08-27 06:13:48,122 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_arvo_init_specialsErr4REQUIRES_VIOLATION [2021-08-27 06:13:48,123 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_arvo_init_specialsErr5REQUIRES_VIOLATION [2021-08-27 06:13:48,123 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_arvo_init_specialsErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:13:48,123 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_arvo_init_specialsErr7ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:13:48,123 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_arvo_init_specialsErr8ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:13:48,123 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-08-27 06:13:48,123 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-08-27 06:13:48,123 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_arvo_init_arvo_device_structErr0REQUIRES_VIOLATION [2021-08-27 06:13:48,124 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_arvo_init_arvo_device_structErr1REQUIRES_VIOLATION [2021-08-27 06:13:48,124 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_arvo_init_arvo_device_structErr2REQUIRES_VIOLATION [2021-08-27 06:13:48,124 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_arvo_init_arvo_device_structErr3REQUIRES_VIOLATION [2021-08-27 06:13:48,124 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_arvo_init_arvo_device_structErr4REQUIRES_VIOLATION [2021-08-27 06:13:48,124 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_arvo_init_arvo_device_structErr5REQUIRES_VIOLATION [2021-08-27 06:13:48,124 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-08-27 06:13:48,124 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-08-27 06:13:48,125 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-08-27 06:13:48,125 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-08-27 06:13:48,125 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-08-27 06:13:48,125 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-08-27 06:13:48,125 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-08-27 06:13:48,125 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-08-27 06:13:48,125 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-08-27 06:13:48,125 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-08-27 06:13:48,126 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-08-27 06:13:48,126 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-08-27 06:13:48,126 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-08-27 06:13:48,126 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-08-27 06:13:48,126 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-08-27 06:13:48,126 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-08-27 06:13:48,126 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-08-27 06:13:48,127 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-08-27 06:13:48,127 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-08-27 06:13:48,127 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-08-27 06:13:48,127 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:13:48,127 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:13:48,127 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:13:48,128 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:13:48,128 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:13:48,128 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:13:48,128 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-08-27 06:13:48,128 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-08-27 06:13:48,128 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-08-27 06:13:48,128 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-08-27 06:13:48,129 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-08-27 06:13:48,129 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-08-27 06:13:48,129 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-08-27 06:13:48,129 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-08-27 06:13:48,129 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:13:48,129 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:13:48,129 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:13:48,130 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:13:48,130 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:13:48,130 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:13:48,130 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-08-27 06:13:48,130 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-08-27 06:13:48,130 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-08-27 06:13:48,131 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-08-27 06:13:48,131 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-08-27 06:13:48,131 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-08-27 06:13:48,131 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location lvd_arvo_remove_specialsErr0REQUIRES_VIOLATION [2021-08-27 06:13:48,131 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location lvd_arvo_remove_specialsErr1REQUIRES_VIOLATION [2021-08-27 06:13:48,131 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location lvd_arvo_remove_specialsErr2REQUIRES_VIOLATION [2021-08-27 06:13:48,131 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location lvd_arvo_remove_specialsErr3REQUIRES_VIOLATION [2021-08-27 06:13:48,132 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location lvd_arvo_remove_specialsErr4REQUIRES_VIOLATION [2021-08-27 06:13:48,132 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location lvd_arvo_remove_specialsErr5REQUIRES_VIOLATION [2021-08-27 06:13:48,132 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location lvd_arvo_remove_specialsErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:13:48,132 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location lvd_arvo_remove_specialsErr7ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:13:48,132 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location lvd_arvo_remove_specialsErr8ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:13:48,132 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-08-27 06:13:48,132 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-08-27 06:13:48,133 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr0REQUIRES_VIOLATION [2021-08-27 06:13:48,133 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr1REQUIRES_VIOLATION [2021-08-27 06:13:48,133 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr2REQUIRES_VIOLATION [2021-08-27 06:13:48,133 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr3REQUIRES_VIOLATION [2021-08-27 06:13:48,133 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr4REQUIRES_VIOLATION [2021-08-27 06:13:48,133 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr5REQUIRES_VIOLATION [2021-08-27 06:13:48,133 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr6REQUIRES_VIOLATION [2021-08-27 06:13:48,134 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr7REQUIRES_VIOLATION [2021-08-27 06:13:48,134 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr8REQUIRES_VIOLATION [2021-08-27 06:13:48,134 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr9REQUIRES_VIOLATION [2021-08-27 06:13:48,134 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr10REQUIRES_VIOLATION [2021-08-27 06:13:48,134 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr11REQUIRES_VIOLATION [2021-08-27 06:13:48,134 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr12ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:13:48,134 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr13ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:13:48,135 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr14ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:13:48,135 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr15ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:13:48,135 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr16ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:13:48,135 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr17ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:13:48,135 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr18ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:13:48,135 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr19ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:13:48,135 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr20ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:13:48,158 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-08-27 06:13:48,352 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2021-08-27 06:13:48,555 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-08-27 06:13:48,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:13:48,754 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-27 06:13:48,757 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-08-27 06:13:48,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 06:13:48 BoogieIcfgContainer [2021-08-27 06:13:48,765 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-27 06:13:48,765 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 06:13:48,765 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 06:13:48,766 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 06:13:48,766 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:09:19" (3/4) ... [2021-08-27 06:13:48,768 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 06:13:48,768 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 06:13:48,769 INFO L168 Benchmark]: Toolchain (without parser) took 271640.47 ms. Allocated memory was 56.6 MB in the beginning and 174.1 MB in the end (delta: 117.4 MB). Free memory was 33.1 MB in the beginning and 62.6 MB in the end (delta: -29.5 MB). Peak memory consumption was 88.2 MB. Max. memory is 16.1 GB. [2021-08-27 06:13:48,769 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 56.6 MB. Free memory was 38.2 MB in the beginning and 38.2 MB in the end (delta: 39.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:13:48,770 INFO L168 Benchmark]: CACSL2BoogieTranslator took 713.48 ms. Allocated memory is still 56.6 MB. Free memory was 33.0 MB in the beginning and 20.9 MB in the end (delta: 12.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 16.1 GB. [2021-08-27 06:13:48,770 INFO L168 Benchmark]: Boogie Preprocessor took 164.03 ms. Allocated memory was 56.6 MB in the beginning and 77.6 MB in the end (delta: 21.0 MB). Free memory was 20.9 MB in the beginning and 54.7 MB in the end (delta: -33.8 MB). Peak memory consumption was 4.6 MB. Max. memory is 16.1 GB. [2021-08-27 06:13:48,770 INFO L168 Benchmark]: RCFGBuilder took 1901.79 ms. Allocated memory was 77.6 MB in the beginning and 98.6 MB in the end (delta: 21.0 MB). Free memory was 54.7 MB in the beginning and 68.5 MB in the end (delta: -13.8 MB). Peak memory consumption was 33.8 MB. Max. memory is 16.1 GB. [2021-08-27 06:13:48,771 INFO L168 Benchmark]: TraceAbstraction took 268840.73 ms. Allocated memory was 98.6 MB in the beginning and 174.1 MB in the end (delta: 75.5 MB). Free memory was 68.5 MB in the beginning and 62.6 MB in the end (delta: 5.9 MB). Peak memory consumption was 81.5 MB. Max. memory is 16.1 GB. [2021-08-27 06:13:48,771 INFO L168 Benchmark]: Witness Printer took 2.97 ms. Allocated memory is still 174.1 MB. Free memory is still 62.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:13:48,772 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 56.6 MB. Free memory was 38.2 MB in the beginning and 38.2 MB in the end (delta: 39.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 713.48 ms. Allocated memory is still 56.6 MB. Free memory was 33.0 MB in the beginning and 20.9 MB in the end (delta: 12.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 164.03 ms. Allocated memory was 56.6 MB in the beginning and 77.6 MB in the end (delta: 21.0 MB). Free memory was 20.9 MB in the beginning and 54.7 MB in the end (delta: -33.8 MB). Peak memory consumption was 4.6 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1901.79 ms. Allocated memory was 77.6 MB in the beginning and 98.6 MB in the end (delta: 21.0 MB). Free memory was 54.7 MB in the beginning and 68.5 MB in the end (delta: -13.8 MB). Peak memory consumption was 33.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 268840.73 ms. Allocated memory was 98.6 MB in the beginning and 174.1 MB in the end (delta: 75.5 MB). Free memory was 68.5 MB in the beginning and 62.6 MB in the end (delta: 5.9 MB). Peak memory consumption was 81.5 MB. Max. memory is 16.1 GB. * Witness Printer took 2.97 ms. Allocated memory is still 174.1 MB. Free memory is still 62.6 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: 842]: 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 842. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L843] CALL entry_point() [L822] CALL, EXPR ldv_malloc(sizeof(struct ldv_hid_device)) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L822] RET, EXPR ldv_malloc(sizeof(struct ldv_hid_device)) [L822] struct ldv_hid_device *hdev = (struct ldv_hid_device *)ldv_malloc(sizeof(struct ldv_hid_device)); [L823] COND FALSE !(!hdev) [L824] CALL, EXPR ldv_malloc(sizeof(struct ldv_usb_interface)) [L526] COND FALSE !(__VERIFIER_nondet_int()) [L529] return 0; [L824] RET, EXPR ldv_malloc(sizeof(struct ldv_usb_interface)) [L824] struct ldv_usb_interface *intf = (struct ldv_usb_interface*)ldv_malloc(sizeof(struct ldv_usb_interface)); [L825] COND TRUE !intf [L838] free(hdev) [L838] free(hdev) [L838] free(hdev) [L843] 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: 780]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 780]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 781]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 781]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 781]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 781]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 796]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 796]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 796]: Unable to prove that free always succeeds Unable to prove that free 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: 772]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 772]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 773]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 773]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: 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: 800]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 800]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 802]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 802]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 802]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 802]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 806]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 806]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 806]: Unable to prove that free always succeeds Unable to prove that free 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: 826]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 826]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 827]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 827]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 828]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 828]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 828]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 828]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 829]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 829]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 834]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 834]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 834]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 834]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 834]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 836]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 836]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 836]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 838]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 838]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 838]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 54 procedures, 465 locations, 116 error locations. Started 1 CEGAR loops. OverallTime: 268773.7ms, OverallIterations: 11, TraceHistogramMax: 3, EmptinessCheckTime: 35.5ms, AutomataDifference: 218250.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 19.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1828 SDtfs, 1519 SDslu, 5175 SDs, 0 SdLazy, 3602 SolverSat, 329 SolverUnsat, 102 SolverUnknown, 0 SolverNotchecked, 196900.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 453 GetRequests, 376 SyntacticMatches, 9 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 40449.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=250occurred in iteration=0, InterpolantAutomatonStates: 77, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 142.9ms AutomataMinimizationTime, 10 MinimizatonAttempts, 493 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 105.4ms SsaConstructionTime, 206.9ms SatisfiabilityAnalysisTime, 26663.1ms InterpolantComputationTime, 220 NumberOfCodeBlocks, 220 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 420 ConstructedInterpolants, 25 QuantifiedInterpolants, 1739 SizeOfPredicates, 7 NumberOfNonLiveVariables, 940 ConjunctsInSsa, 67 ConjunctsInUnsatCore, 20 InterpolantComputations, 8 PerfectInterpolantSequences, 86/112 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 06:13:48,838 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...