./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test18_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_test18_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 25c50494ad64d3207b5cd57d9b83fbf1aea0c348 ................................................................................................................................... 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_test18_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 25c50494ad64d3207b5cd57d9b83fbf1aea0c348 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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 06:14:49,757 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 06:14:49,760 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 06:14:49,793 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 06:14:49,793 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 06:14:49,797 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 06:14:49,798 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 06:14:49,802 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 06:14:49,804 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 06:14:49,808 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 06:14:49,813 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 06:14:49,816 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 06:14:49,817 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 06:14:49,818 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 06:14:49,819 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 06:14:49,823 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 06:14:49,824 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 06:14:49,824 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 06:14:49,825 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 06:14:49,828 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 06:14:49,831 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 06:14:49,832 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 06:14:49,833 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 06:14:49,834 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 06:14:49,837 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 06:14:49,838 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 06:14:49,838 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 06:14:49,839 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 06:14:49,840 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 06:14:49,840 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 06:14:49,840 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 06:14:49,841 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 06:14:49,842 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 06:14:49,843 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 06:14:49,844 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 06:14:49,844 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 06:14:49,844 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 06:14:49,845 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 06:14:49,845 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 06:14:49,846 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 06:14:49,847 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 06:14:49,850 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-08-27 06:14:49,876 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 06:14:49,876 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 06:14:49,877 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 06:14:49,877 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 06:14:49,878 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 06:14:49,879 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 06:14:49,879 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 06:14:49,879 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 06:14:49,879 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 06:14:49,879 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 06:14:49,880 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 06:14:49,880 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 06:14:49,880 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 06:14:49,880 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 06:14:49,881 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 06:14:49,881 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 06:14:49,881 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 06:14:49,881 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 06:14:49,881 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 06:14:49,881 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 06:14:49,882 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 06:14:49,882 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 06:14:49,882 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 06:14:49,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:14:49,882 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 06:14:49,882 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 06:14:49,882 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 06:14:49,883 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-27 06:14:49,883 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 06:14:49,883 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 25c50494ad64d3207b5cd57d9b83fbf1aea0c348 [2021-08-27 06:14:50,135 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 06:14:50,169 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 06:14:50,171 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 06:14:50,172 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 06:14:50,173 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 06:14:50,173 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test18_2.i [2021-08-27 06:14:50,215 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47d372c9a/4659cb63940846329dc6af73444f1fd4/FLAGe51f4fb04 [2021-08-27 06:14:50,649 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 06:14:50,649 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test18_2.i [2021-08-27 06:14:50,665 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47d372c9a/4659cb63940846329dc6af73444f1fd4/FLAGe51f4fb04 [2021-08-27 06:14:50,678 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47d372c9a/4659cb63940846329dc6af73444f1fd4 [2021-08-27 06:14:50,682 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 06:14:50,683 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 06:14:50,685 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 06:14:50,686 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 06:14:50,688 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 06:14:50,688 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:14:50" (1/1) ... [2021-08-27 06:14:50,689 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48ce4295 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:14:50, skipping insertion in model container [2021-08-27 06:14:50,690 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:14:50" (1/1) ... [2021-08-27 06:14:50,695 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 06:14:50,720 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:14:50,970 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:14:50,982 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 06:14:50,984 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@60c1df89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:14:50, skipping insertion in model container [2021-08-27 06:14:50,984 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 06:14:50,984 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-08-27 06:14:50,987 INFO L168 Benchmark]: Toolchain (without parser) took 302.04 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 24.1 MB in the beginning and 39.4 MB in the end (delta: -15.3 MB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. [2021-08-27 06:14:50,987 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 48.2 MB. Free memory was 30.4 MB in the beginning and 30.3 MB in the end (delta: 35.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:14:50,989 INFO L168 Benchmark]: CACSL2BoogieTranslator took 298.98 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 23.9 MB in the beginning and 39.4 MB in the end (delta: -15.5 MB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. [2021-08-27 06:14:50,990 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 48.2 MB. Free memory was 30.4 MB in the beginning and 30.3 MB in the end (delta: 35.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 298.98 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 23.9 MB in the beginning and 39.4 MB in the end (delta: -15.5 MB). Peak memory consumption was 8.0 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 06:14:52,776 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 06:14:52,777 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 06:14:52,818 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 06:14:52,819 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 06:14:52,819 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 06:14:52,820 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 06:14:52,822 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 06:14:52,823 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 06:14:52,823 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 06:14:52,824 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 06:14:52,825 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 06:14:52,825 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 06:14:52,826 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 06:14:52,827 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 06:14:52,827 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 06:14:52,828 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 06:14:52,829 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 06:14:52,830 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 06:14:52,831 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 06:14:52,832 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 06:14:52,845 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 06:14:52,846 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 06:14:52,847 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 06:14:52,848 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 06:14:52,849 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 06:14:52,849 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 06:14:52,849 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 06:14:52,850 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 06:14:52,850 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 06:14:52,850 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 06:14:52,851 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 06:14:52,851 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 06:14:52,852 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 06:14:52,853 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 06:14:52,853 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 06:14:52,853 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 06:14:52,853 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 06:14:52,853 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 06:14:52,854 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 06:14:52,854 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 06:14:52,869 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-08-27 06:14:52,884 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 06:14:52,885 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 06:14:52,885 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 06:14:52,885 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 06:14:52,901 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 06:14:52,901 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 06:14:52,901 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 06:14:52,901 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 06:14:52,901 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 06:14:52,901 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 06:14:52,902 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 06:14:52,902 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 06:14:52,902 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 06:14:52,902 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 06:14:52,902 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 06:14:52,902 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 06:14:52,902 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 06:14:52,902 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 06:14:52,902 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-27 06:14:52,903 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-27 06:14:52,903 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 06:14:52,903 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 06:14:52,903 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 06:14:52,903 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 06:14:52,903 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 06:14:52,903 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:14:52,903 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 06:14:52,903 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 06:14:52,903 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-27 06:14:52,904 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-27 06:14:52,904 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 06:14:52,904 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-27 06:14:52,904 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 25c50494ad64d3207b5cd57d9b83fbf1aea0c348 [2021-08-27 06:14:53,274 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 06:14:53,289 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 06:14:53,291 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 06:14:53,292 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 06:14:53,293 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 06:14:53,293 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test18_2.i [2021-08-27 06:14:53,337 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f59131ad/c199132a95324edfbecc2af511edebb3/FLAGfec1ae006 [2021-08-27 06:14:53,724 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 06:14:53,725 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test18_2.i [2021-08-27 06:14:53,745 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f59131ad/c199132a95324edfbecc2af511edebb3/FLAGfec1ae006 [2021-08-27 06:14:54,102 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f59131ad/c199132a95324edfbecc2af511edebb3 [2021-08-27 06:14:54,108 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 06:14:54,109 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 06:14:54,110 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 06:14:54,111 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 06:14:54,115 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 06:14:54,116 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:14:54" (1/1) ... [2021-08-27 06:14:54,117 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22a0cbc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:14:54, skipping insertion in model container [2021-08-27 06:14:54,117 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:14:54" (1/1) ... [2021-08-27 06:14:54,121 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 06:14:54,163 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:14:54,521 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:14:54,534 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-08-27 06:14:54,542 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:14:54,595 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:14:54,608 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 06:14:54,662 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:14:54,693 INFO L208 MainTranslator]: Completed translation [2021-08-27 06:14:54,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:14:54 WrapperNode [2021-08-27 06:14:54,694 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 06:14:54,695 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 06:14:54,696 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 06:14:54,696 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 06:14:54,703 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:14:54" (1/1) ... [2021-08-27 06:14:54,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:14:54" (1/1) ... [2021-08-27 06:14:54,739 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:14:54" (1/1) ... [2021-08-27 06:14:54,740 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:14:54" (1/1) ... [2021-08-27 06:14:54,765 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:14:54" (1/1) ... [2021-08-27 06:14:54,782 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:14:54" (1/1) ... [2021-08-27 06:14:54,785 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:14:54" (1/1) ... [2021-08-27 06:14:54,790 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 06:14:54,791 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 06:14:54,791 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 06:14:54,791 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 06:14:54,805 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:14:54" (1/1) ... [2021-08-27 06:14:54,810 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:14:54,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 06:14:54,835 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 06:14:54,837 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 06:14:54,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-08-27 06:14:54,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 06:14:54,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-08-27 06:14:54,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-08-27 06:14:54,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-08-27 06:14:54,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-08-27 06:14:54,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-08-27 06:14:54,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-08-27 06:14:54,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-08-27 06:14:54,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-08-27 06:14:54,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-08-27 06:14:54,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-08-27 06:14:54,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-08-27 06:14:54,886 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-08-27 06:14:54,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-08-27 06:14:54,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-08-27 06:14:54,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-08-27 06:14:54,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-08-27 06:14:54,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-08-27 06:14:54,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-08-27 06:14:54,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-08-27 06:14:54,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-08-27 06:14:54,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-08-27 06:14:54,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-08-27 06:14:54,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-08-27 06:14:54,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-08-27 06:14:54,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-08-27 06:14:54,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-08-27 06:14:54,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-08-27 06:14:54,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-08-27 06:14:54,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-08-27 06:14:54,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-08-27 06:14:54,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-08-27 06:14:54,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-08-27 06:14:54,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-08-27 06:14:54,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-08-27 06:14:54,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-08-27 06:14:54,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-08-27 06:14:54,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-08-27 06:14:54,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-08-27 06:14:54,887 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-08-27 06:14:54,887 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-08-27 06:14:54,887 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-08-27 06:14:54,887 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-08-27 06:14:54,888 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-08-27 06:14:54,888 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-08-27 06:14:54,888 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-08-27 06:14:54,888 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-08-27 06:14:54,888 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-08-27 06:14:54,888 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-08-27 06:14:54,888 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-08-27 06:14:54,888 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-08-27 06:14:54,888 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-08-27 06:14:54,888 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-08-27 06:14:54,888 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-08-27 06:14:54,888 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-08-27 06:14:54,888 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-08-27 06:14:54,888 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-08-27 06:14:54,888 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-08-27 06:14:54,888 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-08-27 06:14:54,888 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-08-27 06:14:54,889 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-08-27 06:14:54,889 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-08-27 06:14:54,889 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-08-27 06:14:54,889 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-08-27 06:14:54,889 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-08-27 06:14:54,889 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-08-27 06:14:54,889 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-08-27 06:14:54,889 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-08-27 06:14:54,889 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-08-27 06:14:54,889 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-08-27 06:14:54,889 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-08-27 06:14:54,889 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-08-27 06:14:54,889 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-08-27 06:14:54,889 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-08-27 06:14:54,889 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-08-27 06:14:54,889 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-08-27 06:14:54,889 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-08-27 06:14:54,890 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-08-27 06:14:54,890 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-08-27 06:14:54,890 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-08-27 06:14:54,890 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-08-27 06:14:54,890 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-08-27 06:14:54,890 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-08-27 06:14:54,890 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-08-27 06:14:54,890 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-08-27 06:14:54,890 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-08-27 06:14:54,890 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-08-27 06:14:54,890 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-08-27 06:14:54,890 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-08-27 06:14:54,890 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-08-27 06:14:54,890 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-08-27 06:14:54,890 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-08-27 06:14:54,890 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-08-27 06:14:54,890 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-08-27 06:14:54,890 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-08-27 06:14:54,891 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-08-27 06:14:54,891 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-08-27 06:14:54,891 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-08-27 06:14:54,891 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-08-27 06:14:54,891 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-08-27 06:14:54,891 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-08-27 06:14:54,891 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-08-27 06:14:54,891 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-08-27 06:14:54,891 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-08-27 06:14:54,891 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-08-27 06:14:54,891 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-08-27 06:14:54,891 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-08-27 06:14:54,891 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-08-27 06:14:54,891 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-08-27 06:14:54,891 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-08-27 06:14:54,891 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-08-27 06:14:54,891 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-08-27 06:14:54,891 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-08-27 06:14:54,892 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-08-27 06:14:54,892 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-08-27 06:14:54,892 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-08-27 06:14:54,892 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-08-27 06:14:54,892 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-08-27 06:14:54,892 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-08-27 06:14:54,892 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-08-27 06:14:54,892 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-08-27 06:14:54,892 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-08-27 06:14:54,892 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-08-27 06:14:54,892 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-08-27 06:14:54,892 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-08-27 06:14:54,892 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-08-27 06:14:54,892 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-08-27 06:14:54,892 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-08-27 06:14:54,892 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-08-27 06:14:54,892 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-08-27 06:14:54,892 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-08-27 06:14:54,893 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-08-27 06:14:54,893 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-08-27 06:14:54,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-08-27 06:14:54,893 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-08-27 06:14:54,893 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-08-27 06:14:54,893 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-08-27 06:14:54,893 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-08-27 06:14:54,893 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-08-27 06:14:54,893 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-08-27 06:14:54,893 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-08-27 06:14:54,893 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-08-27 06:14:54,893 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-08-27 06:14:54,893 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-08-27 06:14:54,893 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-08-27 06:14:54,893 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-08-27 06:14:54,893 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-08-27 06:14:54,893 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-08-27 06:14:54,893 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-08-27 06:14:54,893 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-08-27 06:14:54,894 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-08-27 06:14:54,894 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-08-27 06:14:54,894 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-08-27 06:14:54,894 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-08-27 06:14:54,894 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-08-27 06:14:54,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-08-27 06:14:54,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-08-27 06:14:54,894 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-08-27 06:14:54,894 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-08-27 06:14:54,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-08-27 06:14:54,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-27 06:14:54,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-08-27 06:14:54,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-08-27 06:14:54,894 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-08-27 06:14:54,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-08-27 06:14:54,894 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-08-27 06:14:54,894 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-08-27 06:14:54,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-08-27 06:14:54,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-08-27 06:14:54,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-08-27 06:14:54,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-08-27 06:14:54,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-08-27 06:14:54,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-08-27 06:14:54,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-08-27 06:14:54,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-08-27 06:14:54,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-27 06:14:54,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-08-27 06:14:54,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-08-27 06:14:54,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-08-27 06:14:54,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-08-27 06:14:54,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-08-27 06:14:54,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-08-27 06:14:54,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-08-27 06:14:54,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-08-27 06:14:54,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-08-27 06:14:54,895 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-08-27 06:14:54,896 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-08-27 06:14:54,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-08-27 06:14:54,909 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-08-27 06:14:54,909 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-08-27 06:14:54,909 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-08-27 06:14:54,909 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-08-27 06:14:54,909 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-08-27 06:14:54,909 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-08-27 06:14:54,909 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-08-27 06:14:54,909 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-08-27 06:14:54,909 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-08-27 06:14:54,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-08-27 06:14:54,909 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-08-27 06:14:54,909 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-08-27 06:14:54,909 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-08-27 06:14:54,909 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-08-27 06:14:54,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-08-27 06:14:54,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 06:14:54,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-08-27 06:14:54,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 06:14:54,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-08-27 06:14:54,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-08-27 06:14:54,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-08-27 06:14:54,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-08-27 06:14:54,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-08-27 06:14:55,409 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 06:14:55,617 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 06:14:55,829 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 06:14:55,829 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-08-27 06:14:55,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:14:55 BoogieIcfgContainer [2021-08-27 06:14:55,831 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 06:14:55,832 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-27 06:14:55,832 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-27 06:14:55,833 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-27 06:14:55,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 06:14:54" (1/3) ... [2021-08-27 06:14:55,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27fc4e6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:14:55, skipping insertion in model container [2021-08-27 06:14:55,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:14:54" (2/3) ... [2021-08-27 06:14:55,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27fc4e6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:14:55, skipping insertion in model container [2021-08-27 06:14:55,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:14:55" (3/3) ... [2021-08-27 06:14:55,835 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test18_2.i [2021-08-27 06:14:55,838 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-27 06:14:55,838 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 81 error locations. [2021-08-27 06:14:55,863 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-27 06:14:55,866 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 06:14:55,866 INFO L340 AbstractCegarLoop]: Starting to check reachability of 81 error locations. [2021-08-27 06:14:55,875 INFO L276 IsEmpty]: Start isEmpty. Operand has 117 states, 66 states have (on average 1.606060606060606) internal successors, (106), 94 states have internal predecessors, (106), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-08-27 06:14:55,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-27 06:14:55,880 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:14:55,880 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:14:55,880 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-08-27 06:14:55,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:14:55,884 INFO L82 PathProgramCache]: Analyzing trace with hash -114808450, now seen corresponding path program 1 times [2021-08-27 06:14:55,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:14:55,891 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [785974041] [2021-08-27 06:14:55,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:14:55,892 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:14:55,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:14:55,894 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 06:14:55,920 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 06:14:56,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:14:56,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 06:14:56,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:14:56,151 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 06:14:56,151 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:14:56,240 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 06:14:56,240 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:14:56,241 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [785974041] [2021-08-27 06:14:56,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [785974041] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:14:56,241 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:14:56,241 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-08-27 06:14:56,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285084416] [2021-08-27 06:14:56,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:14:56,245 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:14:56,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:14:56,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:14:56,255 INFO L87 Difference]: Start difference. First operand has 117 states, 66 states have (on average 1.606060606060606) internal successors, (106), 94 states have internal predecessors, (106), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:14:56,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:14:56,343 INFO L93 Difference]: Finished difference Result 78 states and 90 transitions. [2021-08-27 06:14:56,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:14:56,344 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 17 [2021-08-27 06:14:56,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:14:56,350 INFO L225 Difference]: With dead ends: 78 [2021-08-27 06:14:56,350 INFO L226 Difference]: Without dead ends: 75 [2021-08-27 06:14:56,351 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.1ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:14:56,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-08-27 06:14:56,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 48. [2021-08-27 06:14:56,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 28 states have (on average 1.5357142857142858) internal successors, (43), 38 states have internal predecessors, (43), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2021-08-27 06:14:56,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 54 transitions. [2021-08-27 06:14:56,376 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 54 transitions. Word has length 17 [2021-08-27 06:14:56,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:14:56,376 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 54 transitions. [2021-08-27 06:14:56,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:14:56,376 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 54 transitions. [2021-08-27 06:14:56,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-27 06:14:56,377 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:14:56,377 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:14:56,387 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-08-27 06:14:56,584 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 06:14:56,585 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-08-27 06:14:56,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:14:56,585 INFO L82 PathProgramCache]: Analyzing trace with hash 1628001885, now seen corresponding path program 1 times [2021-08-27 06:14:56,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:14:56,586 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1695650555] [2021-08-27 06:14:56,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:14:56,586 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:14:56,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:14:56,601 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 06:14:56,603 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 06:14:56,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:14:56,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 06:14:56,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:14:56,788 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 06:14:56,789 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:14:56,869 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 06:14:56,870 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:14:56,870 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1695650555] [2021-08-27 06:14:56,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1695650555] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:14:56,870 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:14:56,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-08-27 06:14:56,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925635445] [2021-08-27 06:14:56,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 06:14:56,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:14:56,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 06:14:56,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 06:14:56,872 INFO L87 Difference]: Start difference. First operand 48 states and 54 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-08-27 06:14:56,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:14:56,920 INFO L93 Difference]: Finished difference Result 76 states and 86 transitions. [2021-08-27 06:14:56,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 06:14:56,921 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 17 [2021-08-27 06:14:56,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:14:56,921 INFO L225 Difference]: With dead ends: 76 [2021-08-27 06:14:56,921 INFO L226 Difference]: Without dead ends: 73 [2021-08-27 06:14:56,922 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 06:14:56,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-08-27 06:14:56,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 54. [2021-08-27 06:14:56,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 33 states have (on average 1.5151515151515151) internal successors, (50), 43 states have internal predecessors, (50), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2021-08-27 06:14:56,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 64 transitions. [2021-08-27 06:14:56,926 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 64 transitions. Word has length 17 [2021-08-27 06:14:56,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:14:56,927 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 64 transitions. [2021-08-27 06:14:56,927 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-08-27 06:14:56,927 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2021-08-27 06:14:56,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-08-27 06:14:56,927 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:14:56,927 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:14:56,951 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 06:14:57,151 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 06:14:57,152 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-08-27 06:14:57,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:14:57,152 INFO L82 PathProgramCache]: Analyzing trace with hash 735393073, now seen corresponding path program 1 times [2021-08-27 06:14:57,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:14:57,153 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1269198910] [2021-08-27 06:14:57,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:14:57,153 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:14:57,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:14:57,154 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 06:14:57,156 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 06:14:57,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:14:57,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-27 06:14:57,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:14:57,364 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 06:14:57,365 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:14:57,429 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 06:14:57,429 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:14:57,429 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1269198910] [2021-08-27 06:14:57,429 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1269198910] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:14:57,430 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:14:57,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-08-27 06:14:57,430 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470591541] [2021-08-27 06:14:57,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-27 06:14:57,430 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:14:57,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-27 06:14:57,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-08-27 06:14:57,431 INFO L87 Difference]: Start difference. First operand 54 states and 64 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2021-08-27 06:14:57,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:14:57,477 INFO L93 Difference]: Finished difference Result 92 states and 111 transitions. [2021-08-27 06:14:57,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:14:57,479 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 18 [2021-08-27 06:14:57,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:14:57,480 INFO L225 Difference]: With dead ends: 92 [2021-08-27 06:14:57,480 INFO L226 Difference]: Without dead ends: 92 [2021-08-27 06:14:57,480 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 21.2ms TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-08-27 06:14:57,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-08-27 06:14:57,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 63. [2021-08-27 06:14:57,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 40 states have (on average 1.5) internal successors, (60), 51 states have internal predecessors, (60), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2021-08-27 06:14:57,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 80 transitions. [2021-08-27 06:14:57,486 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 80 transitions. Word has length 18 [2021-08-27 06:14:57,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:14:57,486 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 80 transitions. [2021-08-27 06:14:57,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2021-08-27 06:14:57,487 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 80 transitions. [2021-08-27 06:14:57,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-08-27 06:14:57,487 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:14:57,487 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:14:57,499 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-08-27 06:14:57,695 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 06:14:57,695 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-08-27 06:14:57,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:14:57,696 INFO L82 PathProgramCache]: Analyzing trace with hash -529470855, now seen corresponding path program 1 times [2021-08-27 06:14:57,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:14:57,696 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1775995185] [2021-08-27 06:14:57,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:14:57,697 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:14:57,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:14:57,707 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 06:14:57,709 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 06:14:57,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:14:57,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-27 06:14:57,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:14:57,929 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 06:14:58,059 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-08-27 06:14:58,059 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 26 [2021-08-27 06:14:58,091 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:14:58,092 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:14:58,333 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:14:58,333 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:14:58,333 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1775995185] [2021-08-27 06:14:58,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1775995185] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-27 06:14:58,333 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 06:14:58,334 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 7 [2021-08-27 06:14:58,334 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146605201] [2021-08-27 06:14:58,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-27 06:14:58,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:14:58,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-27 06:14:58,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-27 06:14:58,335 INFO L87 Difference]: Start difference. First operand 63 states and 80 transitions. Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-27 06:14:58,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:14:58,835 INFO L93 Difference]: Finished difference Result 163 states and 188 transitions. [2021-08-27 06:14:58,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-27 06:14:58,835 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 23 [2021-08-27 06:14:58,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:14:58,837 INFO L225 Difference]: With dead ends: 163 [2021-08-27 06:14:58,837 INFO L226 Difference]: Without dead ends: 163 [2021-08-27 06:14:58,837 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 34 SyntacticMatches, 6 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 169.8ms TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2021-08-27 06:14:58,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2021-08-27 06:14:58,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 79. [2021-08-27 06:14:58,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 55 states have (on average 1.509090909090909) internal successors, (83), 64 states have internal predecessors, (83), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (12), 9 states have call predecessors, (12), 7 states have call successors, (12) [2021-08-27 06:14:58,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 103 transitions. [2021-08-27 06:14:58,843 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 103 transitions. Word has length 23 [2021-08-27 06:14:58,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:14:58,844 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 103 transitions. [2021-08-27 06:14:58,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-27 06:14:58,844 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 103 transitions. [2021-08-27 06:14:58,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-08-27 06:14:58,845 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:14:58,845 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:14:58,853 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 06:14:59,051 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 06:14:59,052 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting entry_pointErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-08-27 06:14:59,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:14:59,052 INFO L82 PathProgramCache]: Analyzing trace with hash -529470854, now seen corresponding path program 1 times [2021-08-27 06:14:59,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:14:59,052 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1077692931] [2021-08-27 06:14:59,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:14:59,053 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:14:59,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:14:59,054 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 06:14:59,082 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 06:14:59,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:14:59,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 18 conjunts are in the unsatisfiable core [2021-08-27 06:14:59,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:14:59,273 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 06:14:59,279 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 06:15:01,511 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-08-27 06:15:01,512 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2021-08-27 06:15:01,520 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-08-27 06:15:01,521 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 26 [2021-08-27 06:15:01,577 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:15:01,578 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:15:18,825 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 29 treesize of output 27 [2021-08-27 06:15:19,220 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 27 treesize of output 25 [2021-08-27 06:15:19,317 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:15:19,317 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:15:19,317 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1077692931] [2021-08-27 06:15:19,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1077692931] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-27 06:15:19,317 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 06:15:19,318 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2021-08-27 06:15:19,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647510958] [2021-08-27 06:15:19,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-08-27 06:15:19,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:15:19,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-27 06:15:19,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=256, Unknown=7, NotChecked=0, Total=306 [2021-08-27 06:15:19,319 INFO L87 Difference]: Start difference. First operand 79 states and 103 transitions. Second operand has 18 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 16 states have internal predecessors, (28), 5 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-08-27 06:17:12,661 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (bvmul c_entry_point_~i~0 (_ bv4 32)))) (let ((.cse1 (bvadd (_ bv4 32) .cse0 c_entry_point_~array~0.offset))) (and (bvule (bvadd .cse0 c_entry_point_~array~0.offset) .cse1) (forall ((|v_ldv_malloc_#res.base_34| (_ BitVec 32))) (or (and (let ((.cse2 (bvmul c_entry_point_~i~0 (_ bv4 32)))) (bvule (bvadd .cse2 c_entry_point_~array~0.offset) (bvadd (_ bv4 32) .cse2 c_entry_point_~array~0.offset))) (forall ((v_ldv_malloc_~size_31 (_ BitVec 32))) (bvule (bvadd (_ bv4 32) (bvmul c_entry_point_~i~0 (_ bv4 32)) c_entry_point_~array~0.offset) (select (store |c_#length| |v_ldv_malloc_#res.base_34| v_ldv_malloc_~size_31) c_entry_point_~array~0.base)))) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ldv_malloc_#res.base_34|)))))) (= |c_old(#valid)| |c_#valid|) (= |c_#length| |c_old(#length)|) (= c_entry_point_~len~0 (_ bv10 32)) (bvule .cse1 (select |c_#length| c_entry_point_~array~0.base))))) is different from false [2021-08-27 06:19:00,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:00,587 INFO L93 Difference]: Finished difference Result 288 states and 342 transitions. [2021-08-27 06:19:00,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-08-27 06:19:00,589 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 16 states have internal predecessors, (28), 5 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 23 [2021-08-27 06:19:00,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:00,591 INFO L225 Difference]: With dead ends: 288 [2021-08-27 06:19:00,591 INFO L226 Difference]: Without dead ends: 288 [2021-08-27 06:19:00,591 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 44575.0ms TimeCoverageRelationStatistics Valid=179, Invalid=867, Unknown=14, NotChecked=62, Total=1122 [2021-08-27 06:19:00,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2021-08-27 06:19:00,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 96. [2021-08-27 06:19:00,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 71 states have (on average 1.5070422535211268) internal successors, (107), 80 states have internal predecessors, (107), 9 states have call successors, (9), 5 states have call predecessors, (9), 5 states have return successors, (14), 10 states have call predecessors, (14), 8 states have call successors, (14) [2021-08-27 06:19:00,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 130 transitions. [2021-08-27 06:19:00,599 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 130 transitions. Word has length 23 [2021-08-27 06:19:00,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:00,600 INFO L470 AbstractCegarLoop]: Abstraction has 96 states and 130 transitions. [2021-08-27 06:19:00,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 16 states have internal predecessors, (28), 5 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-08-27 06:19:00,600 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 130 transitions. [2021-08-27 06:19:00,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-08-27 06:19:00,601 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:00,601 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:19:00,612 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 06:19:00,812 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 06:19:00,813 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-08-27 06:19:00,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:00,813 INFO L82 PathProgramCache]: Analyzing trace with hash -1035029480, now seen corresponding path program 1 times [2021-08-27 06:19:00,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:00,814 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [403829841] [2021-08-27 06:19:00,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:00,814 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:00,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:00,815 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 06:19:00,818 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 06:19:01,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:01,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-27 06:19:01,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:01,146 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:19:01,146 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:01,255 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-27 06:19:01,255 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:01,255 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [403829841] [2021-08-27 06:19:01,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [403829841] provided 1 perfect and 1 imperfect interpolant sequences [2021-08-27 06:19:01,256 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-27 06:19:01,256 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2021-08-27 06:19:01,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671527287] [2021-08-27 06:19:01,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:19:01,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:01,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:19:01,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:19:01,257 INFO L87 Difference]: Start difference. First operand 96 states and 130 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-08-27 06:19:01,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:01,306 INFO L93 Difference]: Finished difference Result 78 states and 100 transitions. [2021-08-27 06:19:01,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:19:01,306 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23 [2021-08-27 06:19:01,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:01,307 INFO L225 Difference]: With dead ends: 78 [2021-08-27 06:19:01,307 INFO L226 Difference]: Without dead ends: 74 [2021-08-27 06:19:01,307 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.5ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:19:01,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-08-27 06:19:01,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2021-08-27 06:19:01,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 53 states have (on average 1.509433962264151) internal successors, (80), 62 states have internal predecessors, (80), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) [2021-08-27 06:19:01,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 96 transitions. [2021-08-27 06:19:01,311 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 96 transitions. Word has length 23 [2021-08-27 06:19:01,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:01,311 INFO L470 AbstractCegarLoop]: Abstraction has 74 states and 96 transitions. [2021-08-27 06:19:01,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-08-27 06:19:01,312 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 96 transitions. [2021-08-27 06:19:01,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-08-27 06:19:01,312 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:01,313 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:19:01,322 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 06:19:01,520 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 06:19:01,520 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting entry_pointErr3REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-08-27 06:19:01,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:01,521 INFO L82 PathProgramCache]: Analyzing trace with hash -2015391035, now seen corresponding path program 1 times [2021-08-27 06:19:01,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:01,522 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1696499915] [2021-08-27 06:19:01,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:01,522 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:01,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:01,523 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 06:19:01,524 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 06:19:01,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:01,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 06:19:01,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:01,822 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-27 06:19:01,822 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:01,898 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-27 06:19:01,898 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:01,898 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1696499915] [2021-08-27 06:19:01,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1696499915] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:19:01,899 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:19:01,899 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-08-27 06:19:01,899 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292097325] [2021-08-27 06:19:01,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:19:01,899 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:01,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:19:01,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:19:01,900 INFO L87 Difference]: Start difference. First operand 74 states and 96 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:19:01,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:01,948 INFO L93 Difference]: Finished difference Result 96 states and 123 transitions. [2021-08-27 06:19:01,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 06:19:01,949 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2021-08-27 06:19:01,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:01,949 INFO L225 Difference]: With dead ends: 96 [2021-08-27 06:19:01,949 INFO L226 Difference]: Without dead ends: 96 [2021-08-27 06:19:01,949 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.0ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-27 06:19:01,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2021-08-27 06:19:01,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 80. [2021-08-27 06:19:01,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 59 states have (on average 1.4576271186440677) internal successors, (86), 65 states have internal predecessors, (86), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (9), 9 states have call predecessors, (9), 6 states have call successors, (9) [2021-08-27 06:19:01,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 102 transitions. [2021-08-27 06:19:01,953 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 102 transitions. Word has length 25 [2021-08-27 06:19:01,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:01,953 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 102 transitions. [2021-08-27 06:19:01,953 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:19:01,953 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 102 transitions. [2021-08-27 06:19:01,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-08-27 06:19:01,953 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:01,954 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:19:01,962 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-08-27 06:19:02,160 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 06:19:02,161 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting entry_pointErr3REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-08-27 06:19:02,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:02,161 INFO L82 PathProgramCache]: Analyzing trace with hash -272580700, now seen corresponding path program 1 times [2021-08-27 06:19:02,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:02,161 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1739838934] [2021-08-27 06:19:02,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:02,162 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:02,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:02,163 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 06:19:02,209 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 06:19:02,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:02,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-27 06:19:02,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:02,506 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-08-27 06:19:02,506 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:02,597 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-08-27 06:19:02,597 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:02,597 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1739838934] [2021-08-27 06:19:02,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1739838934] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:19:02,598 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:19:02,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-08-27 06:19:02,598 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568743624] [2021-08-27 06:19:02,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-27 06:19:02,598 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:02,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-27 06:19:02,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-27 06:19:02,599 INFO L87 Difference]: Start difference. First operand 80 states and 102 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-08-27 06:19:02,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:02,675 INFO L93 Difference]: Finished difference Result 79 states and 93 transitions. [2021-08-27 06:19:02,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:19:02,676 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 25 [2021-08-27 06:19:02,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:02,677 INFO L225 Difference]: With dead ends: 79 [2021-08-27 06:19:02,677 INFO L226 Difference]: Without dead ends: 79 [2021-08-27 06:19:02,677 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 32.8ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-08-27 06:19:02,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2021-08-27 06:19:02,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 72. [2021-08-27 06:19:02,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 51 states have (on average 1.3725490196078431) internal successors, (70), 57 states have internal predecessors, (70), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (9), 9 states have call predecessors, (9), 6 states have call successors, (9) [2021-08-27 06:19:02,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 86 transitions. [2021-08-27 06:19:02,680 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 86 transitions. Word has length 25 [2021-08-27 06:19:02,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:02,680 INFO L470 AbstractCegarLoop]: Abstraction has 72 states and 86 transitions. [2021-08-27 06:19:02,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-08-27 06:19:02,680 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 86 transitions. [2021-08-27 06:19:02,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-08-27 06:19:02,680 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:02,680 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:19:02,694 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 06:19:02,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:19:02,891 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-08-27 06:19:02,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:02,892 INFO L82 PathProgramCache]: Analyzing trace with hash 139931782, now seen corresponding path program 1 times [2021-08-27 06:19:02,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:02,892 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1796804513] [2021-08-27 06:19:02,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:02,892 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:02,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:02,894 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:19:02,896 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-08-27 06:19:03,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:03,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 06:19:03,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:03,541 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:19:03,541 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:03,760 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-27 06:19:03,761 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:03,761 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1796804513] [2021-08-27 06:19:03,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1796804513] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-27 06:19:03,761 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 06:19:03,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 9 [2021-08-27 06:19:03,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782448750] [2021-08-27 06:19:03,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-27 06:19:03,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:03,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-27 06:19:03,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-08-27 06:19:03,762 INFO L87 Difference]: Start difference. First operand 72 states and 86 transitions. Second operand has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 4 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-08-27 06:19:03,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:03,929 INFO L93 Difference]: Finished difference Result 71 states and 84 transitions. [2021-08-27 06:19:03,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-27 06:19:03,930 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 4 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) Word has length 26 [2021-08-27 06:19:03,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:03,932 INFO L225 Difference]: With dead ends: 71 [2021-08-27 06:19:03,932 INFO L226 Difference]: Without dead ends: 71 [2021-08-27 06:19:03,933 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 239.0ms TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-08-27 06:19:03,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-08-27 06:19:03,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2021-08-27 06:19:03,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 51 states have (on average 1.3333333333333333) internal successors, (68), 56 states have internal predecessors, (68), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (9), 9 states have call predecessors, (9), 6 states have call successors, (9) [2021-08-27 06:19:03,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 84 transitions. [2021-08-27 06:19:03,938 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 84 transitions. Word has length 26 [2021-08-27 06:19:03,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:03,938 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 84 transitions. [2021-08-27 06:19:03,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 4 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-08-27 06:19:03,938 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 84 transitions. [2021-08-27 06:19:03,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-08-27 06:19:03,942 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:03,942 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:19:03,949 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2021-08-27 06:19:04,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:19:04,149 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-08-27 06:19:04,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:04,150 INFO L82 PathProgramCache]: Analyzing trace with hash -1318116199, now seen corresponding path program 1 times [2021-08-27 06:19:04,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:04,150 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [574685588] [2021-08-27 06:19:04,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:04,150 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:04,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:04,151 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:19:04,153 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-08-27 06:19:04,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:04,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 14 conjunts are in the unsatisfiable core [2021-08-27 06:19:04,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:04,692 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-27 06:19:04,692 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:08,885 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:08,885 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [574685588] [2021-08-27 06:19:08,885 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 06:19:08,885 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1792667231] [2021-08-27 06:19:08,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:08,885 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-08-27 06:19:08,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2021-08-27 06:19:08,887 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-08-27 06:19:08,888 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2021-08-27 06:19:09,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:09,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 16 conjunts are in the unsatisfiable core [2021-08-27 06:19:09,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:09,387 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-08-27 06:19:09,387 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 06:19:13,775 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-27 06:19:13,775 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:17,938 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 06:19:17,938 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1377601049] [2021-08-27 06:19:17,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:17,938 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 06:19:17,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 06:19:17,941 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 06:19:17,942 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-08-27 06:19:18,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:18,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 13 conjunts are in the unsatisfiable core [2021-08-27 06:19:18,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:18,477 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-27 06:19:18,478 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:22,629 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 06:19:22,629 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:19:22,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-08-27 06:19:22,629 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-08-27 06:19:22,629 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-08-27 06:19:22,632 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-08-27 06:19:22,633 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-08-27 06:19:22,633 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-08-27 06:19:22,633 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-08-27 06:19:22,633 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-08-27 06:19:22,633 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-08-27 06:19:22,633 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-08-27 06:19:22,634 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-08-27 06:19:22,634 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-08-27 06:19:22,634 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-08-27 06:19:22,634 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-08-27 06:19:22,634 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-08-27 06:19:22,634 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-08-27 06:19:22,634 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-08-27 06:19:22,634 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-08-27 06:19:22,634 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-08-27 06:19:22,634 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-08-27 06:19:22,634 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-08-27 06:19:22,634 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-08-27 06:19:22,634 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-08-27 06:19:22,634 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-08-27 06:19:22,634 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-08-27 06:19:22,634 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-08-27 06:19:22,634 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-08-27 06:19:22,634 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-08-27 06:19:22,635 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-08-27 06:19:22,635 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-08-27 06:19:22,635 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-08-27 06:19:22,635 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-08-27 06:19:22,635 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-08-27 06:19:22,635 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-08-27 06:19:22,635 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-08-27 06:19:22,635 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-08-27 06:19:22,635 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-08-27 06:19:22,635 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-08-27 06:19:22,635 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-08-27 06:19:22,635 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-08-27 06:19:22,635 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-08-27 06:19:22,635 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-08-27 06:19:22,635 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-08-27 06:19:22,635 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-08-27 06:19:22,635 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-08-27 06:19:22,635 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-08-27 06:19:22,636 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:19:22,636 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:19:22,636 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:19:22,636 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:19:22,636 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:19:22,636 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:19:22,636 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-08-27 06:19:22,636 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-08-27 06:19:22,636 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-08-27 06:19:22,636 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-08-27 06:19:22,636 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-08-27 06:19:22,636 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-08-27 06:19:22,636 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-08-27 06:19:22,636 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-08-27 06:19:22,636 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:19:22,636 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:19:22,636 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:19:22,637 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:19:22,637 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:19:22,637 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:19:22,637 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-08-27 06:19:22,638 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-08-27 06:19:22,638 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-08-27 06:19:22,638 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-08-27 06:19:22,638 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-08-27 06:19:22,638 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-08-27 06:19:22,638 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-08-27 06:19:22,638 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-08-27 06:19:22,638 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr0REQUIRES_VIOLATION [2021-08-27 06:19:22,638 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr1REQUIRES_VIOLATION [2021-08-27 06:19:22,638 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr2REQUIRES_VIOLATION [2021-08-27 06:19:22,639 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr3REQUIRES_VIOLATION [2021-08-27 06:19:22,639 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:19:22,639 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:19:22,639 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:19:22,639 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:19:22,639 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:19:22,639 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:19:22,657 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2021-08-27 06:19:22,863 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-08-27 06:19:23,059 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2021-08-27 06:19:23,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2021-08-27 06:19:23,265 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-27 06:19:23,267 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-08-27 06:19:23,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 06:19:23 BoogieIcfgContainer [2021-08-27 06:19:23,274 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-27 06:19:23,274 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 06:19:23,274 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 06:19:23,275 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 06:19:23,275 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:14:55" (3/4) ... [2021-08-27 06:19:23,277 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 06:19:23,277 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 06:19:23,278 INFO L168 Benchmark]: Toolchain (without parser) took 269168.63 ms. Allocated memory was 56.6 MB in the beginning and 167.8 MB in the end (delta: 111.1 MB). Free memory was 33.5 MB in the beginning and 55.7 MB in the end (delta: -22.2 MB). Peak memory consumption was 89.9 MB. Max. memory is 16.1 GB. [2021-08-27 06:19:23,278 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 56.6 MB. Free memory was 38.1 MB in the beginning and 38.1 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:19:23,279 INFO L168 Benchmark]: CACSL2BoogieTranslator took 584.16 ms. Allocated memory was 56.6 MB in the beginning and 77.6 MB in the end (delta: 21.0 MB). Free memory was 33.3 MB in the beginning and 42.8 MB in the end (delta: -9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 16.1 GB. [2021-08-27 06:19:23,279 INFO L168 Benchmark]: Boogie Preprocessor took 95.21 ms. Allocated memory is still 77.6 MB. Free memory was 42.8 MB in the beginning and 57.4 MB in the end (delta: -14.6 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2021-08-27 06:19:23,279 INFO L168 Benchmark]: RCFGBuilder took 1039.58 ms. Allocated memory was 77.6 MB in the beginning and 94.4 MB in the end (delta: 16.8 MB). Free memory was 57.4 MB in the beginning and 70.5 MB in the end (delta: -13.1 MB). Peak memory consumption was 37.3 MB. Max. memory is 16.1 GB. [2021-08-27 06:19:23,280 INFO L168 Benchmark]: TraceAbstraction took 267442.05 ms. Allocated memory was 94.4 MB in the beginning and 167.8 MB in the end (delta: 73.4 MB). Free memory was 69.9 MB in the beginning and 55.7 MB in the end (delta: 14.2 MB). Peak memory consumption was 88.4 MB. Max. memory is 16.1 GB. [2021-08-27 06:19:23,280 INFO L168 Benchmark]: Witness Printer took 3.18 ms. Allocated memory is still 167.8 MB. Free memory is still 55.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:19:23,281 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 56.6 MB. Free memory was 38.1 MB in the beginning and 38.1 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 584.16 ms. Allocated memory was 56.6 MB in the beginning and 77.6 MB in the end (delta: 21.0 MB). Free memory was 33.3 MB in the beginning and 42.8 MB in the end (delta: -9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 95.21 ms. Allocated memory is still 77.6 MB. Free memory was 42.8 MB in the beginning and 57.4 MB in the end (delta: -14.6 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1039.58 ms. Allocated memory was 77.6 MB in the beginning and 94.4 MB in the end (delta: 16.8 MB). Free memory was 57.4 MB in the beginning and 70.5 MB in the end (delta: -13.1 MB). Peak memory consumption was 37.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 267442.05 ms. Allocated memory was 94.4 MB in the beginning and 167.8 MB in the end (delta: 73.4 MB). Free memory was 69.9 MB in the beginning and 55.7 MB in the end (delta: 14.2 MB). Peak memory consumption was 88.4 MB. Max. memory is 16.1 GB. * Witness Printer took 3.18 ms. Allocated memory is still 167.8 MB. Free memory is still 55.7 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: 780]: 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 780. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L781] CALL entry_point() [L761] int len = 10; [L762] CALL, EXPR ldv_malloc(sizeof(struct A18*)*len) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L762] RET, EXPR ldv_malloc(sizeof(struct A18*)*len) [L762] struct A18 **array = (struct A18 **)ldv_malloc(sizeof(struct A18*)*len); [L763] struct A18 *p; [L764] int i=0; [L765] int j; [L766] COND FALSE !(!array) [L767] COND TRUE i=0) [L777] free(array) [L777] free(array) [L777] free(array) [L781] 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: 770]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 775]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 775]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 775]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 775]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 775]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 47 procedures, 357 locations, 81 error locations. Started 1 CEGAR loops. OverallTime: 267401.8ms, OverallIterations: 10, TraceHistogramMax: 2, EmptinessCheckTime: 14.6ms, AutomataDifference: 222332.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 448 SDtfs, 984 SDslu, 1246 SDs, 0 SdLazy, 1058 SolverSat, 160 SolverUnsat, 91 SolverUnknown, 0 SolverNotchecked, 192315.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 412 GetRequests, 331 SyntacticMatches, 7 SemanticMatches, 74 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 45100.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=117occurred in iteration=0, InterpolantAutomatonStates: 70, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 55.2ms AutomataMinimizationTime, 9 MinimizatonAttempts, 374 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 87.5ms SsaConstructionTime, 155.8ms SatisfiabilityAnalysisTime, 22156.6ms InterpolantComputationTime, 197 NumberOfCodeBlocks, 197 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 376 ConstructedInterpolants, 23 QuantifiedInterpolants, 1792 SizeOfPredicates, 12 NumberOfNonLiveVariables, 816 ConjunctsInSsa, 58 ConjunctsInUnsatCore, 18 InterpolantComputations, 11 PerfectInterpolantSequences, 32/48 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 06:19:23,379 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...