./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test20-2.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_test20-2.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 b6943849e6f46346ed71c5d8e09de50318fefe6a ................................................................................................................................... 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_test20-2.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 b6943849e6f46346ed71c5d8e09de50318fefe6a ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 06:17:43,946 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 06:17:43,947 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 06:17:43,972 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 06:17:43,972 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 06:17:43,973 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 06:17:43,974 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 06:17:43,975 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 06:17:43,976 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 06:17:43,977 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 06:17:43,978 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 06:17:43,978 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 06:17:43,979 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 06:17:43,979 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 06:17:43,980 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 06:17:43,982 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 06:17:43,983 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 06:17:43,983 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 06:17:43,984 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 06:17:43,985 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 06:17:43,986 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 06:17:43,987 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 06:17:43,987 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 06:17:43,988 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 06:17:43,990 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 06:17:43,990 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 06:17:43,990 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 06:17:43,990 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 06:17:43,991 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 06:17:43,991 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 06:17:43,991 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 06:17:43,992 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 06:17:43,992 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 06:17:43,993 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 06:17:43,993 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 06:17:43,993 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 06:17:43,994 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 06:17:43,994 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 06:17:43,994 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 06:17:43,994 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 06:17:43,995 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 06:17:43,996 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-08-27 06:17:44,015 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 06:17:44,015 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 06:17:44,015 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 06:17:44,015 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 06:17:44,016 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 06:17:44,016 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 06:17:44,016 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 06:17:44,017 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 06:17:44,017 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 06:17:44,017 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 06:17:44,017 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 06:17:44,017 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 06:17:44,017 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 06:17:44,017 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 06:17:44,017 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 06:17:44,017 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 06:17:44,018 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 06:17:44,018 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 06:17:44,018 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 06:17:44,018 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 06:17:44,018 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 06:17:44,018 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 06:17:44,018 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 06:17:44,018 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:17:44,019 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 06:17:44,019 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 06:17:44,019 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 06:17:44,019 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-27 06:17:44,019 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 06:17:44,019 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b6943849e6f46346ed71c5d8e09de50318fefe6a [2021-08-27 06:17:44,237 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 06:17:44,250 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 06:17:44,251 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 06:17:44,252 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 06:17:44,253 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 06:17:44,253 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test20-2.i [2021-08-27 06:17:44,296 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f084c83ba/c3ae93dda4bb4d43965528b4d765a237/FLAG0ae1a4934 [2021-08-27 06:17:44,738 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 06:17:44,739 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test20-2.i [2021-08-27 06:17:44,753 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f084c83ba/c3ae93dda4bb4d43965528b4d765a237/FLAG0ae1a4934 [2021-08-27 06:17:44,763 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f084c83ba/c3ae93dda4bb4d43965528b4d765a237 [2021-08-27 06:17:44,764 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 06:17:44,765 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 06:17:44,766 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 06:17:44,767 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 06:17:44,769 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 06:17:44,770 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:17:44" (1/1) ... [2021-08-27 06:17:44,770 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32483cbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:17:44, skipping insertion in model container [2021-08-27 06:17:44,770 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:17:44" (1/1) ... [2021-08-27 06:17:44,775 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 06:17:44,798 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:17:45,074 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:17:45,094 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 06:17:45,095 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6eab3553 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:17:45, skipping insertion in model container [2021-08-27 06:17:45,095 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 06:17:45,095 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-08-27 06:17:45,098 INFO L168 Benchmark]: Toolchain (without parser) took 330.67 ms. Allocated memory is still 60.8 MB. Free memory was 38.2 MB in the beginning and 40.6 MB in the end (delta: -2.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-08-27 06:17:45,099 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 60.8 MB. Free memory was 43.2 MB in the beginning and 43.2 MB in the end (delta: 1.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:17:45,099 INFO L168 Benchmark]: CACSL2BoogieTranslator took 328.84 ms. Allocated memory is still 60.8 MB. Free memory was 37.9 MB in the beginning and 40.6 MB in the end (delta: -2.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-08-27 06:17:45,101 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 60.8 MB. Free memory was 43.2 MB in the beginning and 43.2 MB in the end (delta: 1.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 328.84 ms. Allocated memory is still 60.8 MB. Free memory was 37.9 MB in the beginning and 40.6 MB in the end (delta: -2.7 MB). Peak memory consumption was 14.7 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 06:17:46,363 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 06:17:46,364 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 06:17:46,397 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 06:17:46,397 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 06:17:46,400 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 06:17:46,401 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 06:17:46,405 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 06:17:46,407 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 06:17:46,410 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 06:17:46,411 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 06:17:46,414 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 06:17:46,414 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 06:17:46,416 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 06:17:46,417 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 06:17:46,418 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 06:17:46,419 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 06:17:46,419 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 06:17:46,422 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 06:17:46,427 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 06:17:46,427 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 06:17:46,428 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 06:17:46,429 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 06:17:46,430 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 06:17:46,435 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 06:17:46,435 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 06:17:46,435 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 06:17:46,436 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 06:17:46,437 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 06:17:46,437 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 06:17:46,438 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 06:17:46,438 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 06:17:46,440 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 06:17:46,441 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 06:17:46,442 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 06:17:46,442 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 06:17:46,442 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 06:17:46,442 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 06:17:46,443 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 06:17:46,444 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 06:17:46,444 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 06:17:46,445 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-08-27 06:17:46,476 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 06:17:46,476 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 06:17:46,476 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 06:17:46,477 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 06:17:46,478 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 06:17:46,478 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 06:17:46,478 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 06:17:46,478 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 06:17:46,478 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 06:17:46,478 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 06:17:46,479 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 06:17:46,479 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 06:17:46,479 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 06:17:46,479 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 06:17:46,479 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 06:17:46,480 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 06:17:46,480 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 06:17:46,480 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 06:17:46,480 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-27 06:17:46,480 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-27 06:17:46,480 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 06:17:46,480 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 06:17:46,480 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 06:17:46,480 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 06:17:46,480 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 06:17:46,481 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:17:46,481 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 06:17:46,481 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 06:17:46,481 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-27 06:17:46,481 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-27 06:17:46,481 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 06:17:46,481 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-27 06:17:46,481 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b6943849e6f46346ed71c5d8e09de50318fefe6a [2021-08-27 06:17:46,737 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 06:17:46,753 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 06:17:46,755 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 06:17:46,756 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 06:17:46,756 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 06:17:46,757 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test20-2.i [2021-08-27 06:17:46,805 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ea00aa6e/6d1fef9fd3604f9e9e5302c28b1865d6/FLAG0a126f9b9 [2021-08-27 06:17:47,248 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 06:17:47,248 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test20-2.i [2021-08-27 06:17:47,266 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ea00aa6e/6d1fef9fd3604f9e9e5302c28b1865d6/FLAG0a126f9b9 [2021-08-27 06:17:47,612 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ea00aa6e/6d1fef9fd3604f9e9e5302c28b1865d6 [2021-08-27 06:17:47,614 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 06:17:47,615 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 06:17:47,616 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 06:17:47,616 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 06:17:47,630 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 06:17:47,631 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:17:47" (1/1) ... [2021-08-27 06:17:47,631 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f80d3c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:17:47, skipping insertion in model container [2021-08-27 06:17:47,632 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:17:47" (1/1) ... [2021-08-27 06:17:47,636 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 06:17:47,667 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:17:47,943 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:17:47,959 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-08-27 06:17:47,970 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:17:48,015 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:17:48,025 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 06:17:48,067 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:17:48,109 INFO L208 MainTranslator]: Completed translation [2021-08-27 06:17:48,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:17:48 WrapperNode [2021-08-27 06:17:48,109 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 06:17:48,110 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 06:17:48,110 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 06:17:48,110 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 06:17:48,117 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:17:48" (1/1) ... [2021-08-27 06:17:48,117 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:17:48" (1/1) ... [2021-08-27 06:17:48,131 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:17:48" (1/1) ... [2021-08-27 06:17:48,131 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:17:48" (1/1) ... [2021-08-27 06:17:48,151 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:17:48" (1/1) ... [2021-08-27 06:17:48,169 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:17:48" (1/1) ... [2021-08-27 06:17:48,177 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:17:48" (1/1) ... [2021-08-27 06:17:48,184 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 06:17:48,185 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 06:17:48,185 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 06:17:48,185 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 06:17:48,185 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:17:48" (1/1) ... [2021-08-27 06:17:48,189 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:17:48,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 06:17:48,211 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 06:17:48,213 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 06:17:48,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-08-27 06:17:48,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 06:17:48,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-08-27 06:17:48,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-08-27 06:17:48,237 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-08-27 06:17:48,237 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-08-27 06:17:48,237 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-08-27 06:17:48,237 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-08-27 06:17:48,237 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-08-27 06:17:48,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-08-27 06:17:48,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-08-27 06:17:48,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-08-27 06:17:48,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-08-27 06:17:48,237 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-08-27 06:17:48,237 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-08-27 06:17:48,237 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-08-27 06:17:48,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-08-27 06:17:48,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-08-27 06:17:48,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-08-27 06:17:48,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-08-27 06:17:48,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-08-27 06:17:48,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-08-27 06:17:48,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-08-27 06:17:48,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-08-27 06:17:48,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-08-27 06:17:48,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-08-27 06:17:48,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-08-27 06:17:48,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-08-27 06:17:48,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-08-27 06:17:48,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-08-27 06:17:48,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-08-27 06:17:48,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-08-27 06:17:48,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-08-27 06:17:48,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-08-27 06:17:48,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-08-27 06:17:48,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-08-27 06:17:48,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-08-27 06:17:48,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-08-27 06:17:48,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-08-27 06:17:48,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-08-27 06:17:48,239 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-08-27 06:17:48,239 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-08-27 06:17:48,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_device [2021-08-27 06:17:48,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_device [2021-08-27 06:17:48,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_deregister_device [2021-08-27 06:17:48,239 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_20 [2021-08-27 06:17:48,239 INFO L138 BoogieDeclarations]: Found implementation of procedure free_20 [2021-08-27 06:17:48,239 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-08-27 06:17:48,239 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-08-27 06:17:48,240 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-08-27 06:17:48,240 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-08-27 06:17:48,240 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-08-27 06:17:48,240 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-08-27 06:17:48,248 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-08-27 06:17:48,249 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-08-27 06:17:48,249 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-08-27 06:17:48,249 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-08-27 06:17:48,249 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-08-27 06:17:48,249 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-08-27 06:17:48,249 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-08-27 06:17:48,249 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-08-27 06:17:48,249 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-08-27 06:17:48,249 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-08-27 06:17:48,249 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-08-27 06:17:48,249 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-08-27 06:17:48,249 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-08-27 06:17:48,249 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-08-27 06:17:48,249 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-08-27 06:17:48,249 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-08-27 06:17:48,249 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-08-27 06:17:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-08-27 06:17:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-08-27 06:17:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-08-27 06:17:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-08-27 06:17:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-08-27 06:17:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-08-27 06:17:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-08-27 06:17:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-08-27 06:17:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-08-27 06:17:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-08-27 06:17:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-08-27 06:17:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-08-27 06:17:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-08-27 06:17:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-08-27 06:17:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-08-27 06:17:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-08-27 06:17:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-08-27 06:17:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-08-27 06:17:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-08-27 06:17:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-08-27 06:17:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-08-27 06:17:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-08-27 06:17:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-08-27 06:17:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-08-27 06:17:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-08-27 06:17:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-08-27 06:17:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-08-27 06:17:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-08-27 06:17:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-08-27 06:17:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-08-27 06:17:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-08-27 06:17:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-08-27 06:17:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-08-27 06:17:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-08-27 06:17:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-08-27 06:17:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-08-27 06:17:48,252 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-08-27 06:17:48,252 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-08-27 06:17:48,252 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-08-27 06:17:48,252 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-08-27 06:17:48,252 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-08-27 06:17:48,252 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-08-27 06:17:48,252 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-08-27 06:17:48,252 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-08-27 06:17:48,252 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-08-27 06:17:48,252 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-08-27 06:17:48,252 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-08-27 06:17:48,252 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-08-27 06:17:48,252 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-08-27 06:17:48,252 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-08-27 06:17:48,252 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-08-27 06:17:48,252 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-08-27 06:17:48,252 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-08-27 06:17:48,253 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-08-27 06:17:48,253 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-08-27 06:17:48,253 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-08-27 06:17:48,253 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-08-27 06:17:48,253 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-08-27 06:17:48,253 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-08-27 06:17:48,253 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-08-27 06:17:48,253 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-08-27 06:17:48,253 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-08-27 06:17:48,253 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-08-27 06:17:48,253 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-08-27 06:17:48,253 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-08-27 06:17:48,253 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-08-27 06:17:48,253 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-08-27 06:17:48,253 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-08-27 06:17:48,253 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-08-27 06:17:48,253 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-08-27 06:17:48,253 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-08-27 06:17:48,254 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-08-27 06:17:48,254 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-08-27 06:17:48,254 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-08-27 06:17:48,254 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-08-27 06:17:48,254 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-08-27 06:17:48,254 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-08-27 06:17:48,254 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-08-27 06:17:48,254 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-08-27 06:17:48,254 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-08-27 06:17:48,254 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-08-27 06:17:48,254 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-08-27 06:17:48,254 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-08-27 06:17:48,254 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-08-27 06:17:48,254 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-08-27 06:17:48,254 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-08-27 06:17:48,254 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-08-27 06:17:48,254 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-08-27 06:17:48,254 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-08-27 06:17:48,254 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-08-27 06:17:48,255 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-08-27 06:17:48,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-08-27 06:17:48,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-08-27 06:17:48,255 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-08-27 06:17:48,255 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-08-27 06:17:48,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-08-27 06:17:48,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-27 06:17:48,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-08-27 06:17:48,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-08-27 06:17:48,255 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-08-27 06:17:48,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-08-27 06:17:48,255 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-08-27 06:17:48,256 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-08-27 06:17:48,256 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-08-27 06:17:48,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-08-27 06:17:48,256 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-08-27 06:17:48,256 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-08-27 06:17:48,256 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-08-27 06:17:48,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-08-27 06:17:48,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-08-27 06:17:48,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-08-27 06:17:48,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-27 06:17:48,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-08-27 06:17:48,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-08-27 06:17:48,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-08-27 06:17:48,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-08-27 06:17:48,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-08-27 06:17:48,257 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-08-27 06:17:48,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-08-27 06:17:48,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-08-27 06:17:48,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-08-27 06:17:48,258 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-08-27 06:17:48,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-08-27 06:17:48,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-08-27 06:17:48,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-08-27 06:17:48,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-08-27 06:17:48,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-08-27 06:17:48,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-08-27 06:17:48,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-08-27 06:17:48,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-08-27 06:17:48,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-08-27 06:17:48,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-08-27 06:17:48,259 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-08-27 06:17:48,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-08-27 06:17:48,260 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-08-27 06:17:48,260 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-08-27 06:17:48,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_device [2021-08-27 06:17:48,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_device [2021-08-27 06:17:48,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_deregister_device [2021-08-27 06:17:48,260 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_20 [2021-08-27 06:17:48,260 INFO L130 BoogieDeclarations]: Found specification of procedure free_20 [2021-08-27 06:17:48,260 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-08-27 06:17:48,260 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-08-27 06:17:48,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-08-27 06:17:48,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 06:17:48,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-08-27 06:17:48,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 06:17:48,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-08-27 06:17:48,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-08-27 06:17:48,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-08-27 06:17:48,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-08-27 06:17:48,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-08-27 06:17:48,733 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 06:17:48,961 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 06:17:49,145 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 06:17:49,149 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-08-27 06:17:49,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:17:49 BoogieIcfgContainer [2021-08-27 06:17:49,150 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 06:17:49,151 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-27 06:17:49,151 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-27 06:17:49,153 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-27 06:17:49,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 06:17:47" (1/3) ... [2021-08-27 06:17:49,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b77e147 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:17:49, skipping insertion in model container [2021-08-27 06:17:49,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:17:48" (2/3) ... [2021-08-27 06:17:49,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b77e147 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:17:49, skipping insertion in model container [2021-08-27 06:17:49,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:17:49" (3/3) ... [2021-08-27 06:17:49,155 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test20-2.i [2021-08-27 06:17:49,158 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-27 06:17:49,158 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 74 error locations. [2021-08-27 06:17:49,183 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-27 06:17:49,187 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 06:17:49,187 INFO L340 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2021-08-27 06:17:49,196 INFO L276 IsEmpty]: Start isEmpty. Operand has 113 states, 62 states have (on average 1.467741935483871) internal successors, (91), 84 states have internal predecessors, (91), 15 states have call successors, (15), 14 states have call predecessors, (15), 14 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-08-27 06:17:49,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-08-27 06:17:49,200 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:17:49,201 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 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 06:17:49,201 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting free_20Err0ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-27 06:17:49,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:17:49,204 INFO L82 PathProgramCache]: Analyzing trace with hash -2108151956, now seen corresponding path program 1 times [2021-08-27 06:17:49,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:17:49,211 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [595953163] [2021-08-27 06:17:49,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:17:49,212 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:17:49,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:17:49,221 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 06:17:49,230 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 06:17:49,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:17:49,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 06:17:49,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:17:49,533 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 06:17:49,533 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:17:49,644 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 06:17:49,645 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:17:49,645 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [595953163] [2021-08-27 06:17:49,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [595953163] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:17:49,646 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:17:49,646 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-08-27 06:17:49,647 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312073451] [2021-08-27 06:17:49,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:17:49,650 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:17:49,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:17:49,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:17:49,663 INFO L87 Difference]: Start difference. First operand has 113 states, 62 states have (on average 1.467741935483871) internal successors, (91), 84 states have internal predecessors, (91), 15 states have call successors, (15), 14 states have call predecessors, (15), 14 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) 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, (8), 2 states have call predecessors, (8), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-27 06:17:49,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:17:49,688 INFO L93 Difference]: Finished difference Result 50 states and 53 transitions. [2021-08-27 06:17:49,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:17:49,689 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, (8), 2 states have call predecessors, (8), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 24 [2021-08-27 06:17:49,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:17:49,695 INFO L225 Difference]: With dead ends: 50 [2021-08-27 06:17:49,695 INFO L226 Difference]: Without dead ends: 47 [2021-08-27 06:17:49,696 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.5ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:17:49,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-08-27 06:17:49,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 44. [2021-08-27 06:17:49,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 24 states have (on average 1.25) internal successors, (30), 28 states have internal predecessors, (30), 8 states have call successors, (8), 8 states have call predecessors, (8), 8 states have return successors, (8), 8 states have call predecessors, (8), 7 states have call successors, (8) [2021-08-27 06:17:49,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 46 transitions. [2021-08-27 06:17:49,728 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 46 transitions. Word has length 24 [2021-08-27 06:17:49,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:17:49,728 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 46 transitions. [2021-08-27 06:17:49,729 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, (8), 2 states have call predecessors, (8), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-27 06:17:49,729 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 46 transitions. [2021-08-27 06:17:49,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-08-27 06:17:49,730 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:17:49,730 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 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 06:17:49,739 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-08-27 06:17:49,939 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 06:17:49,940 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting free_20Err0ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-27 06:17:49,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:17:49,952 INFO L82 PathProgramCache]: Analyzing trace with hash -600600147, now seen corresponding path program 1 times [2021-08-27 06:17:49,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:17:49,953 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1378674441] [2021-08-27 06:17:49,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:17:49,953 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:17:49,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:17:49,954 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 06:17:49,956 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 06:17:50,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:17:50,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 21 conjunts are in the unsatisfiable core [2021-08-27 06:17:50,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:17:50,357 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 06:17:50,357 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:17:50,646 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 06:17:50,647 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:17:50,647 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1378674441] [2021-08-27 06:17:50,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1378674441] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:17:50,648 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:17:50,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2021-08-27 06:17:50,648 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993126552] [2021-08-27 06:17:50,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-27 06:17:50,652 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:17:50,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-27 06:17:50,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-08-27 06:17:50,654 INFO L87 Difference]: Start difference. First operand 44 states and 46 transitions. Second operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 4 states have call successors, (10), 4 states have call predecessors, (10), 6 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2021-08-27 06:17:50,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:17:50,920 INFO L93 Difference]: Finished difference Result 60 states and 62 transitions. [2021-08-27 06:17:50,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-27 06:17:50,920 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 4 states have call successors, (10), 4 states have call predecessors, (10), 6 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 24 [2021-08-27 06:17:50,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:17:50,922 INFO L225 Difference]: With dead ends: 60 [2021-08-27 06:17:50,922 INFO L226 Difference]: Without dead ends: 60 [2021-08-27 06:17:50,924 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 143.9ms TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2021-08-27 06:17:50,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-08-27 06:17:50,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 55. [2021-08-27 06:17:50,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 30 states have (on average 1.2) internal successors, (36), 34 states have internal predecessors, (36), 10 states have call successors, (10), 10 states have call predecessors, (10), 11 states have return successors, (11), 10 states have call predecessors, (11), 9 states have call successors, (11) [2021-08-27 06:17:50,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 57 transitions. [2021-08-27 06:17:50,935 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 57 transitions. Word has length 24 [2021-08-27 06:17:50,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:17:50,935 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 57 transitions. [2021-08-27 06:17:50,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 4 states have call successors, (10), 4 states have call predecessors, (10), 6 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2021-08-27 06:17:50,936 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 57 transitions. [2021-08-27 06:17:50,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-08-27 06:17:50,936 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:17:50,937 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 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 06:17:50,946 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 06:17:51,143 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 06:17:51,143 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting free_20Err0ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-27 06:17:51,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:17:51,144 INFO L82 PathProgramCache]: Analyzing trace with hash 976042921, now seen corresponding path program 1 times [2021-08-27 06:17:51,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:17:51,144 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [119699796] [2021-08-27 06:17:51,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:17:51,144 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:17:51,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:17:51,145 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 06:17:51,146 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 06:17:51,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:17:51,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 12 conjunts are in the unsatisfiable core [2021-08-27 06:17:51,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:17:51,473 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 06:17:51,474 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:17:51,708 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 06:17:51,708 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:17:51,708 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [119699796] [2021-08-27 06:17:51,708 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [119699796] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:17:51,709 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:17:51,709 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 12 [2021-08-27 06:17:51,709 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760139200] [2021-08-27 06:17:51,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-08-27 06:17:51,709 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:17:51,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-27 06:17:51,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-08-27 06:17:51,710 INFO L87 Difference]: Start difference. First operand 55 states and 57 transitions. Second operand has 13 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 11 states have internal predecessors, (19), 3 states have call successors, (9), 2 states have call predecessors, (9), 7 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2021-08-27 06:17:51,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:17:51,864 INFO L93 Difference]: Finished difference Result 55 states and 56 transitions. [2021-08-27 06:17:51,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-27 06:17:51,864 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 11 states have internal predecessors, (19), 3 states have call successors, (9), 2 states have call predecessors, (9), 7 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 28 [2021-08-27 06:17:51,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:17:51,866 INFO L225 Difference]: With dead ends: 55 [2021-08-27 06:17:51,866 INFO L226 Difference]: Without dead ends: 55 [2021-08-27 06:17:51,866 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 121.2ms TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2021-08-27 06:17:51,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-08-27 06:17:51,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 54. [2021-08-27 06:17:51,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 30 states have (on average 1.1333333333333333) internal successors, (34), 33 states have internal predecessors, (34), 10 states have call successors, (10), 10 states have call predecessors, (10), 11 states have return successors, (11), 10 states have call predecessors, (11), 9 states have call successors, (11) [2021-08-27 06:17:51,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 55 transitions. [2021-08-27 06:17:51,881 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 55 transitions. Word has length 28 [2021-08-27 06:17:51,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:17:51,882 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 55 transitions. [2021-08-27 06:17:51,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 11 states have internal predecessors, (19), 3 states have call successors, (9), 2 states have call predecessors, (9), 7 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2021-08-27 06:17:51,882 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 55 transitions. [2021-08-27 06:17:51,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-08-27 06:17:51,884 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:17:51,884 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 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 06:17:51,891 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 06:17:52,091 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 06:17:52,092 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting free_20Err1ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-27 06:17:52,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:17:52,092 INFO L82 PathProgramCache]: Analyzing trace with hash 192559894, now seen corresponding path program 1 times [2021-08-27 06:17:52,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:17:52,093 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1270263824] [2021-08-27 06:17:52,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:17:52,093 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:17:52,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:17:52,094 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 06:17:52,099 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 06:17:52,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:17:52,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 14 conjunts are in the unsatisfiable core [2021-08-27 06:17:52,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:17:52,723 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 06:17:52,724 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:17:53,113 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 06:17:53,113 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:17:53,113 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1270263824] [2021-08-27 06:17:53,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1270263824] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:17:53,113 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:17:53,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 10] imperfect sequences [] total 21 [2021-08-27 06:17:53,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131103356] [2021-08-27 06:17:53,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-08-27 06:17:53,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:17:53,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-08-27 06:17:53,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2021-08-27 06:17:53,115 INFO L87 Difference]: Start difference. First operand 54 states and 55 transitions. Second operand has 22 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 17 states have internal predecessors, (32), 6 states have call successors, (15), 5 states have call predecessors, (15), 10 states have return successors, (10), 8 states have call predecessors, (10), 6 states have call successors, (10) [2021-08-27 06:17:53,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:17:53,974 INFO L93 Difference]: Finished difference Result 77 states and 77 transitions. [2021-08-27 06:17:53,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-08-27 06:17:53,975 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 17 states have internal predecessors, (32), 6 states have call successors, (15), 5 states have call predecessors, (15), 10 states have return successors, (10), 8 states have call predecessors, (10), 6 states have call successors, (10) Word has length 29 [2021-08-27 06:17:53,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:17:53,976 INFO L225 Difference]: With dead ends: 77 [2021-08-27 06:17:53,976 INFO L226 Difference]: Without dead ends: 77 [2021-08-27 06:17:53,976 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 707.9ms TimeCoverageRelationStatistics Valid=250, Invalid=1232, Unknown=0, NotChecked=0, Total=1482 [2021-08-27 06:17:53,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-08-27 06:17:53,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 53. [2021-08-27 06:17:53,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 30 states have (on average 1.1) internal successors, (33), 32 states have internal predecessors, (33), 10 states have call successors, (10), 10 states have call predecessors, (10), 11 states have return successors, (11), 10 states have call predecessors, (11), 9 states have call successors, (11) [2021-08-27 06:17:53,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 54 transitions. [2021-08-27 06:17:53,979 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 54 transitions. Word has length 29 [2021-08-27 06:17:53,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:17:53,980 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 54 transitions. [2021-08-27 06:17:53,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 17 states have internal predecessors, (32), 6 states have call successors, (15), 5 states have call predecessors, (15), 10 states have return successors, (10), 8 states have call predecessors, (10), 6 states have call successors, (10) [2021-08-27 06:17:53,980 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 54 transitions. [2021-08-27 06:17:53,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-08-27 06:17:53,980 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:17:53,980 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 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 06:17:53,987 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 06:17:54,184 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 06:17:54,185 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting free_20Err2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-27 06:17:54,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:17:54,186 INFO L82 PathProgramCache]: Analyzing trace with hash 1674389835, now seen corresponding path program 1 times [2021-08-27 06:17:54,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:17:54,186 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1147680126] [2021-08-27 06:17:54,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:17:54,186 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:17:54,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:17:54,187 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 06:17:54,188 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 06:17:54,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:17:54,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 14 conjunts are in the unsatisfiable core [2021-08-27 06:17:54,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:17:54,433 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 06:17:54,662 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 06:17:54,662 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:17:54,953 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 06:17:54,953 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:17:54,953 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1147680126] [2021-08-27 06:17:54,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1147680126] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:17:54,953 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:17:54,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 13 [2021-08-27 06:17:54,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686965279] [2021-08-27 06:17:54,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-08-27 06:17:54,954 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:17:54,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-08-27 06:17:54,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2021-08-27 06:17:54,954 INFO L87 Difference]: Start difference. First operand 53 states and 54 transitions. Second operand has 14 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 11 states have internal predecessors, (21), 3 states have call successors, (10), 3 states have call predecessors, (10), 7 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2021-08-27 06:17:55,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:17:55,269 INFO L93 Difference]: Finished difference Result 71 states and 73 transitions. [2021-08-27 06:17:55,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-27 06:17:55,271 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 11 states have internal predecessors, (21), 3 states have call successors, (10), 3 states have call predecessors, (10), 7 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 30 [2021-08-27 06:17:55,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:17:55,271 INFO L225 Difference]: With dead ends: 71 [2021-08-27 06:17:55,271 INFO L226 Difference]: Without dead ends: 71 [2021-08-27 06:17:55,273 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 42 SyntacticMatches, 6 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 205.2ms TimeCoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2021-08-27 06:17:55,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-08-27 06:17:55,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 66. [2021-08-27 06:17:55,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 38 states have (on average 1.0789473684210527) internal successors, (41), 40 states have internal predecessors, (41), 13 states have call successors, (13), 12 states have call predecessors, (13), 13 states have return successors, (15), 13 states have call predecessors, (15), 12 states have call successors, (15) [2021-08-27 06:17:55,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 69 transitions. [2021-08-27 06:17:55,279 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 69 transitions. Word has length 30 [2021-08-27 06:17:55,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:17:55,279 INFO L470 AbstractCegarLoop]: Abstraction has 66 states and 69 transitions. [2021-08-27 06:17:55,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 11 states have internal predecessors, (21), 3 states have call successors, (10), 3 states have call predecessors, (10), 7 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2021-08-27 06:17:55,279 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 69 transitions. [2021-08-27 06:17:55,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-08-27 06:17:55,280 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:17:55,280 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 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 06:17:55,287 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 06:17:55,484 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 06:17:55,485 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting free_20Err2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-27 06:17:55,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:17:55,485 INFO L82 PathProgramCache]: Analyzing trace with hash 1885740748, now seen corresponding path program 1 times [2021-08-27 06:17:55,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:17:55,485 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1336794035] [2021-08-27 06:17:55,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:17:55,486 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:17:55,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:17:55,486 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 06:17:55,487 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 06:17:55,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:17:55,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-27 06:17:55,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:17:55,818 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 06:17:55,818 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:17:55,943 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 06:17:55,943 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:17:55,943 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1336794035] [2021-08-27 06:17:55,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1336794035] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:17:55,943 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:17:55,943 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-08-27 06:17:55,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042005055] [2021-08-27 06:17:55,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:17:55,944 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:17:55,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:17:55,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:17:55,945 INFO L87 Difference]: Start difference. First operand 66 states and 69 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2021-08-27 06:17:55,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:17:55,954 INFO L93 Difference]: Finished difference Result 52 states and 52 transitions. [2021-08-27 06:17:55,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:17:55,955 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 30 [2021-08-27 06:17:55,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:17:55,957 INFO L225 Difference]: With dead ends: 52 [2021-08-27 06:17:55,957 INFO L226 Difference]: Without dead ends: 52 [2021-08-27 06:17:55,958 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.8ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:17:55,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-08-27 06:17:55,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-08-27 06:17:55,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 30 states have (on average 1.0333333333333334) internal successors, (31), 31 states have internal predecessors, (31), 10 states have call successors, (10), 10 states have call predecessors, (10), 11 states have return successors, (11), 10 states have call predecessors, (11), 9 states have call successors, (11) [2021-08-27 06:17:55,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 52 transitions. [2021-08-27 06:17:55,961 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 52 transitions. Word has length 30 [2021-08-27 06:17:55,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:17:55,962 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 52 transitions. [2021-08-27 06:17:55,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2021-08-27 06:17:55,962 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 52 transitions. [2021-08-27 06:17:55,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-08-27 06:17:55,962 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:17:55,962 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 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 06:17:55,969 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 06:17:56,169 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 06:17:56,169 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-27 06:17:56,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:17:56,170 INFO L82 PathProgramCache]: Analyzing trace with hash 844909557, now seen corresponding path program 1 times [2021-08-27 06:17:56,170 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:17:56,170 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1782172782] [2021-08-27 06:17:56,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:17:56,170 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:17:56,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:17:56,172 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 06:17:56,172 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 06:17:56,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:17:56,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-27 06:17:56,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:17:56,508 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 06:17:56,508 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:17:56,664 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 06:17:56,664 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:17:56,664 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1782172782] [2021-08-27 06:17:56,664 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1782172782] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:17:56,664 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:17:56,664 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-08-27 06:17:56,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404510870] [2021-08-27 06:17:56,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 06:17:56,665 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:17:56,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 06:17:56,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 06:17:56,665 INFO L87 Difference]: Start difference. First operand 52 states and 52 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-08-27 06:17:56,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:17:56,700 INFO L93 Difference]: Finished difference Result 56 states and 55 transitions. [2021-08-27 06:17:56,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 06:17:56,700 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 29 [2021-08-27 06:17:56,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:17:56,701 INFO L225 Difference]: With dead ends: 56 [2021-08-27 06:17:56,701 INFO L226 Difference]: Without dead ends: 37 [2021-08-27 06:17:56,701 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 06:17:56,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-08-27 06:17:56,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-08-27 06:17:56,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 21 states have (on average 1.0) internal successors, (21), 21 states have internal predecessors, (21), 8 states have call successors, (8), 8 states have call predecessors, (8), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-08-27 06:17:56,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 36 transitions. [2021-08-27 06:17:56,702 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 36 transitions. Word has length 29 [2021-08-27 06:17:56,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:17:56,703 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 36 transitions. [2021-08-27 06:17:56,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-08-27 06:17:56,703 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 36 transitions. [2021-08-27 06:17:56,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-08-27 06:17:56,703 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:17:56,703 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:17:56,712 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 06:17:56,910 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 06:17:56,910 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-27 06:17:56,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:17:56,911 INFO L82 PathProgramCache]: Analyzing trace with hash -548127480, now seen corresponding path program 1 times [2021-08-27 06:17:56,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:17:56,911 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2103496031] [2021-08-27 06:17:56,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:17:56,911 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:17:56,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:17:56,912 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 06:17:56,913 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 06:17:57,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:17:57,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 24 conjunts are in the unsatisfiable core [2021-08-27 06:17:57,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:17:57,278 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 0 case distinctions, treesize of input 20 treesize of output 17 [2021-08-27 06:17:57,376 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 15 treesize of output 13 [2021-08-27 06:17:57,564 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 06:17:57,564 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:01,969 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:01,970 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2103496031] [2021-08-27 06:18:01,970 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 06:18:01,970 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1526727796] [2021-08-27 06:18:01,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:01,970 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-08-27 06:18:01,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2021-08-27 06:18:01,973 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-08-27 06:18:01,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2021-08-27 06:18:02,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:02,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 26 conjunts are in the unsatisfiable core [2021-08-27 06:18:02,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:02,447 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-08-27 06:18:02,448 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 28 [2021-08-27 06:18:04,597 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 0 case distinctions, treesize of input 19 treesize of output 16 [2021-08-27 06:18:04,667 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 14 treesize of output 12 [2021-08-27 06:18:06,796 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 06:18:06,796 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:11,149 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 06:18:11,149 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [568792198] [2021-08-27 06:18:11,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:11,149 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 06:18:11,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 06:18:11,151 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 06:18:11,153 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-08-27 06:18:11,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:11,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 23 conjunts are in the unsatisfiable core [2021-08-27 06:18:11,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:11,578 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 0 case distinctions, treesize of input 20 treesize of output 17 [2021-08-27 06:18:11,658 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 14 treesize of output 12 [2021-08-27 06:18:11,748 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 06:18:11,748 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:16,026 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 06:18:16,026 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:18:16,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-08-27 06:18:16,027 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-08-27 06:18:16,027 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-08-27 06:18:16,030 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-08-27 06:18:16,033 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-08-27 06:18:16,033 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-08-27 06:18:16,033 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-08-27 06:18:16,033 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-08-27 06:18:16,033 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-08-27 06:18:16,033 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-08-27 06:18:16,033 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-08-27 06:18:16,034 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-08-27 06:18:16,034 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-08-27 06:18:16,034 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-08-27 06:18:16,034 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-08-27 06:18:16,034 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-08-27 06:18:16,034 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-08-27 06:18:16,034 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-08-27 06:18:16,034 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-08-27 06:18:16,035 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-08-27 06:18:16,035 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-08-27 06:18:16,035 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-08-27 06:18:16,035 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-08-27 06:18:16,035 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-08-27 06:18:16,035 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-08-27 06:18:16,035 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-08-27 06:18:16,035 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-08-27 06:18:16,035 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-08-27 06:18:16,036 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-08-27 06:18:16,036 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-08-27 06:18:16,036 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-08-27 06:18:16,036 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-08-27 06:18:16,036 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-08-27 06:18:16,036 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-08-27 06:18:16,036 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-08-27 06:18:16,037 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-08-27 06:18:16,037 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-08-27 06:18:16,037 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-08-27 06:18:16,037 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-08-27 06:18:16,037 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-08-27 06:18:16,037 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-08-27 06:18:16,037 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-08-27 06:18:16,037 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-08-27 06:18:16,037 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-08-27 06:18:16,038 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-08-27 06:18:16,038 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-08-27 06:18:16,038 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:18:16,038 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:18:16,038 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:18:16,038 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:18:16,038 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:18:16,038 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:18:16,040 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-08-27 06:18:16,040 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-08-27 06:18:16,040 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-08-27 06:18:16,040 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-08-27 06:18:16,040 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-08-27 06:18:16,041 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-08-27 06:18:16,041 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-08-27 06:18:16,041 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-08-27 06:18:16,041 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:18:16,041 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:18:16,041 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:18:16,041 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:18:16,041 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:18:16,041 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:18:16,043 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-08-27 06:18:16,043 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-08-27 06:18:16,043 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-08-27 06:18:16,043 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-08-27 06:18:16,043 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-08-27 06:18:16,043 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-08-27 06:18:16,044 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-08-27 06:18:16,044 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-08-27 06:18:16,044 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_20Err0ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:18:16,044 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_20Err1ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:18:16,044 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_20Err2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:18:16,070 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-08-27 06:18:16,270 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 06:18:16,465 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2021-08-27 06:18:16,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2021-08-27 06:18:16,665 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-27 06:18:16,669 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-08-27 06:18:16,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 06:18:16 BoogieIcfgContainer [2021-08-27 06:18:16,674 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-27 06:18:16,675 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 06:18:16,675 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 06:18:16,675 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 06:18:16,675 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:17:49" (3/4) ... [2021-08-27 06:18:16,677 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 06:18:16,677 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 06:18:16,678 INFO L168 Benchmark]: Toolchain (without parser) took 29062.54 ms. Allocated memory was 58.7 MB in the beginning and 197.1 MB in the end (delta: 138.4 MB). Free memory was 41.5 MB in the beginning and 71.6 MB in the end (delta: -30.1 MB). Peak memory consumption was 109.2 MB. Max. memory is 16.1 GB. [2021-08-27 06:18:16,678 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 48.2 MB. Free memory is still 30.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:18:16,678 INFO L168 Benchmark]: CACSL2BoogieTranslator took 493.17 ms. Allocated memory is still 58.7 MB. Free memory was 41.3 MB in the beginning and 35.4 MB in the end (delta: 5.9 MB). Peak memory consumption was 16.1 MB. Max. memory is 16.1 GB. [2021-08-27 06:18:16,678 INFO L168 Benchmark]: Boogie Preprocessor took 74.14 ms. Allocated memory is still 58.7 MB. Free memory was 35.4 MB in the beginning and 30.5 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-27 06:18:16,679 INFO L168 Benchmark]: RCFGBuilder took 966.00 ms. Allocated memory was 58.7 MB in the beginning and 73.4 MB in the end (delta: 14.7 MB). Free memory was 30.5 MB in the beginning and 43.7 MB in the end (delta: -13.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-08-27 06:18:16,679 INFO L168 Benchmark]: TraceAbstraction took 27522.80 ms. Allocated memory was 73.4 MB in the beginning and 197.1 MB in the end (delta: 123.7 MB). Free memory was 43.2 MB in the beginning and 71.6 MB in the end (delta: -28.5 MB). Peak memory consumption was 95.5 MB. Max. memory is 16.1 GB. [2021-08-27 06:18:16,679 INFO L168 Benchmark]: Witness Printer took 2.53 ms. Allocated memory is still 197.1 MB. Free memory is still 71.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:18:16,680 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 48.2 MB. Free memory is still 30.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 493.17 ms. Allocated memory is still 58.7 MB. Free memory was 41.3 MB in the beginning and 35.4 MB in the end (delta: 5.9 MB). Peak memory consumption was 16.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 74.14 ms. Allocated memory is still 58.7 MB. Free memory was 35.4 MB in the beginning and 30.5 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 966.00 ms. Allocated memory was 58.7 MB in the beginning and 73.4 MB in the end (delta: 14.7 MB). Free memory was 30.5 MB in the beginning and 43.7 MB in the end (delta: -13.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 27522.80 ms. Allocated memory was 73.4 MB in the beginning and 197.1 MB in the end (delta: 123.7 MB). Free memory was 43.2 MB in the beginning and 71.6 MB in the end (delta: -28.5 MB). Peak memory consumption was 95.5 MB. Max. memory is 16.1 GB. * Witness Printer took 2.53 ms. Allocated memory is still 197.1 MB. Free memory is still 71.6 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: 789]: 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 789. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L761] struct ldv_device *saved_device_20; [L790] CALL entry_point() [L785] CALL alloc_20() [L772] CALL, EXPR ldv_malloc(sizeof(struct A20)) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L772] RET, EXPR ldv_malloc(sizeof(struct A20)) [L772] struct A20 *p = (struct A20*)ldv_malloc(sizeof(struct A20)); [L773] COND TRUE \read(*p) [L774] CALL ldv_register_device(&p->dev) [L763] saved_device_20 = dev [L774] RET ldv_register_device(&p->dev) [L785] RET alloc_20() [L786] CALL free_20() [L778] CALL, EXPR ldv_get_device() [L766] return saved_device_20; [L778] RET, EXPR ldv_get_device() [L778] struct ldv_device *dev = ldv_get_device(); [L779] COND TRUE \read(*dev) [L780] const typeof( ((struct A20 *)0)->dev ) *__mptr = (dev); [L780] struct A20 *p = ({ const typeof( ((struct A20 *)0)->dev ) *__mptr = (dev); (struct A20 *)( (char *)__mptr - ((size_t) &((struct A20 *)0)->dev) );}); [L781] free(p) [L781] free(p) [L781] free(p) [L786] RET free_20() [L787] saved_device_20 = 0 [L790] RET entry_point() - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 781]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 781]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 781]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 52 procedures, 356 locations, 74 error locations. Started 1 CEGAR loops. OverallTime: 27481.9ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 12.6ms, AutomataDifference: 1702.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 279 SDtfs, 255 SDslu, 1010 SDs, 0 SdLazy, 938 SolverSat, 109 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 797.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 416 GetRequests, 321 SyntacticMatches, 6 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 375 ImplicationChecksByTransitivity, 1205.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=113occurred in iteration=0, InterpolantAutomatonStates: 73, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 57.7ms AutomataMinimizationTime, 7 MinimizatonAttempts, 38 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 64.7ms SsaConstructionTime, 159.8ms SatisfiabilityAnalysisTime, 3000.7ms InterpolantComputationTime, 194 NumberOfCodeBlocks, 194 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 374 ConstructedInterpolants, 6 QuantifiedInterpolants, 1620 SizeOfPredicates, 22 NumberOfNonLiveVariables, 791 ConjunctsInSsa, 82 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-08-27 06:18:16,708 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...