./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test16.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test16.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 c11af8296bfd5ac190948fd112a042e269f74b0ed21dcbb0764a4b3dab5067a3 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 17:24:31,803 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 17:24:31,805 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 17:24:31,831 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 17:24:31,832 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 17:24:31,834 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 17:24:31,839 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 17:24:31,842 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 17:24:31,844 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 17:24:31,849 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 17:24:31,850 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 17:24:31,853 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 17:24:31,854 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 17:24:31,856 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 17:24:31,857 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 17:24:31,861 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 17:24:31,862 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 17:24:31,864 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 17:24:31,866 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 17:24:31,867 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 17:24:31,869 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 17:24:31,870 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 17:24:31,872 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 17:24:31,873 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 17:24:31,874 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 17:24:31,881 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 17:24:31,884 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 17:24:31,885 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 17:24:31,886 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 17:24:31,886 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 17:24:31,887 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 17:24:31,888 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 17:24:31,890 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 17:24:31,890 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 17:24:31,892 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 17:24:31,893 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 17:24:31,893 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 17:24:31,893 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 17:24:31,894 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 17:24:31,894 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 17:24:31,894 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 17:24:31,896 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 17:24:31,903 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-07-21 17:24:31,933 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 17:24:31,933 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 17:24:31,934 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 17:24:31,934 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 17:24:31,935 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 17:24:31,935 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 17:24:31,936 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 17:24:31,936 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 17:24:31,936 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 17:24:31,937 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 17:24:31,937 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 17:24:31,938 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-21 17:24:31,938 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 17:24:31,938 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 17:24:31,938 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 17:24:31,938 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-07-21 17:24:31,939 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-07-21 17:24:31,939 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-07-21 17:24:31,939 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 17:24:31,939 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 17:24:31,939 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 17:24:31,940 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 17:24:31,940 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 17:24:31,940 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 17:24:31,940 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 17:24:31,940 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 17:24:31,941 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 17:24:31,941 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 17:24:31,941 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 17:24:31,941 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 17:24:31,942 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c11af8296bfd5ac190948fd112a042e269f74b0ed21dcbb0764a4b3dab5067a3 [2022-07-21 17:24:32,256 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 17:24:32,276 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 17:24:32,279 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 17:24:32,280 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 17:24:32,282 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 17:24:32,284 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test16.i [2022-07-21 17:24:32,345 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c0eb65fc/05aa66711fd042e897128a5540e07385/FLAGa045235bb [2022-07-21 17:24:32,921 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 17:24:32,925 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test16.i [2022-07-21 17:24:32,945 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c0eb65fc/05aa66711fd042e897128a5540e07385/FLAGa045235bb [2022-07-21 17:24:33,363 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c0eb65fc/05aa66711fd042e897128a5540e07385 [2022-07-21 17:24:33,372 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 17:24:33,373 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 17:24:33,377 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 17:24:33,377 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 17:24:33,381 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 17:24:33,381 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:24:33" (1/1) ... [2022-07-21 17:24:33,382 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c3de741 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:24:33, skipping insertion in model container [2022-07-21 17:24:33,383 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:24:33" (1/1) ... [2022-07-21 17:24:33,389 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 17:24:33,439 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 17:24:33,842 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 17:24:33,861 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2022-07-21 17:24:33,862 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@524b05d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:24:33, skipping insertion in model container [2022-07-21 17:24:33,862 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 17:24:33,862 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-07-21 17:24:33,865 INFO L158 Benchmark]: Toolchain (without parser) took 489.79ms. Allocated memory is still 58.7MB. Free memory was 41.2MB in the beginning and 38.0MB in the end (delta: 3.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-21 17:24:33,867 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 48.2MB. Free memory was 30.2MB in the beginning and 30.1MB in the end (delta: 41.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 17:24:33,868 INFO L158 Benchmark]: CACSL2BoogieTranslator took 485.27ms. Allocated memory is still 58.7MB. Free memory was 41.1MB in the beginning and 38.0MB in the end (delta: 3.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-21 17:24:33,870 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 48.2MB. Free memory was 30.2MB in the beginning and 30.1MB in the end (delta: 41.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 485.27ms. Allocated memory is still 58.7MB. Free memory was 41.1MB in the beginning and 38.0MB in the end (delta: 3.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test16.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 c11af8296bfd5ac190948fd112a042e269f74b0ed21dcbb0764a4b3dab5067a3 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 17:24:35,671 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 17:24:35,674 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 17:24:35,714 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 17:24:35,714 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 17:24:35,716 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 17:24:35,720 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 17:24:35,723 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 17:24:35,725 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 17:24:35,730 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 17:24:35,731 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 17:24:35,733 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 17:24:35,734 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 17:24:35,736 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 17:24:35,737 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 17:24:35,742 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 17:24:35,743 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 17:24:35,745 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 17:24:35,746 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 17:24:35,752 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 17:24:35,753 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 17:24:35,755 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 17:24:35,756 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 17:24:35,757 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 17:24:35,759 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 17:24:35,765 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 17:24:35,765 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 17:24:35,766 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 17:24:35,767 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 17:24:35,767 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 17:24:35,768 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 17:24:35,768 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 17:24:35,770 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 17:24:35,771 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 17:24:35,772 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 17:24:35,773 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 17:24:35,773 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 17:24:35,773 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 17:24:35,773 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 17:24:35,774 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 17:24:35,774 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 17:24:35,776 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 17:24:35,782 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-07-21 17:24:35,816 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 17:24:35,817 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 17:24:35,817 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 17:24:35,817 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 17:24:35,818 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 17:24:35,818 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 17:24:35,819 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 17:24:35,819 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 17:24:35,820 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 17:24:35,821 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 17:24:35,821 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 17:24:35,821 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-21 17:24:35,821 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 17:24:35,822 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 17:24:35,822 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 17:24:35,822 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-07-21 17:24:35,822 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-07-21 17:24:35,822 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-07-21 17:24:35,822 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 17:24:35,823 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 17:24:35,823 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-21 17:24:35,823 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-21 17:24:35,824 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 17:24:35,824 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 17:24:35,824 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 17:24:35,824 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 17:24:35,824 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 17:24:35,825 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 17:24:35,825 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 17:24:35,825 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 17:24:35,825 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-21 17:24:35,826 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-21 17:24:35,826 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-21 17:24:35,826 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c11af8296bfd5ac190948fd112a042e269f74b0ed21dcbb0764a4b3dab5067a3 [2022-07-21 17:24:36,148 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 17:24:36,171 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 17:24:36,174 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 17:24:36,175 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 17:24:36,176 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 17:24:36,177 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test16.i [2022-07-21 17:24:36,237 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc0747645/892add2166d941648b7d18212365522c/FLAG5fff59bd1 [2022-07-21 17:24:36,707 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 17:24:36,707 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test16.i [2022-07-21 17:24:36,719 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc0747645/892add2166d941648b7d18212365522c/FLAG5fff59bd1 [2022-07-21 17:24:37,059 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc0747645/892add2166d941648b7d18212365522c [2022-07-21 17:24:37,062 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 17:24:37,063 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 17:24:37,066 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 17:24:37,066 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 17:24:37,069 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 17:24:37,070 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:24:37" (1/1) ... [2022-07-21 17:24:37,071 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49cd360d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:24:37, skipping insertion in model container [2022-07-21 17:24:37,071 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:24:37" (1/1) ... [2022-07-21 17:24:37,078 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 17:24:37,131 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 17:24:37,528 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 17:24:37,549 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-21 17:24:37,561 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 17:24:37,628 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 17:24:37,645 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 17:24:37,691 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 17:24:37,723 INFO L208 MainTranslator]: Completed translation [2022-07-21 17:24:37,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:24:37 WrapperNode [2022-07-21 17:24:37,724 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 17:24:37,725 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 17:24:37,725 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 17:24:37,725 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 17:24:37,735 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:24:37" (1/1) ... [2022-07-21 17:24:37,756 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:24:37" (1/1) ... [2022-07-21 17:24:37,775 INFO L137 Inliner]: procedures = 167, calls = 71, calls flagged for inlining = 23, calls inlined = 5, statements flattened = 33 [2022-07-21 17:24:37,777 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 17:24:37,778 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 17:24:37,778 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 17:24:37,779 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 17:24:37,785 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:24:37" (1/1) ... [2022-07-21 17:24:37,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:24:37" (1/1) ... [2022-07-21 17:24:37,794 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:24:37" (1/1) ... [2022-07-21 17:24:37,798 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:24:37" (1/1) ... [2022-07-21 17:24:37,803 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:24:37" (1/1) ... [2022-07-21 17:24:37,812 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:24:37" (1/1) ... [2022-07-21 17:24:37,816 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:24:37" (1/1) ... [2022-07-21 17:24:37,823 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 17:24:37,824 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 17:24:37,824 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 17:24:37,824 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 17:24:37,825 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:24:37" (1/1) ... [2022-07-21 17:24:37,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 17:24:37,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 17:24:37,856 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 17:24:37,860 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 17:24:37,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 17:24:37,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 17:24:37,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 17:24:37,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 17:24:37,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 17:24:37,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 17:24:37,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 17:24:37,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 17:24:38,041 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 17:24:38,043 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 17:24:38,184 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 17:24:38,189 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 17:24:38,190 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 17:24:38,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:24:38 BoogieIcfgContainer [2022-07-21 17:24:38,192 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 17:24:38,193 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 17:24:38,193 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 17:24:38,196 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 17:24:38,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 05:24:37" (1/3) ... [2022-07-21 17:24:38,197 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67793479 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:24:38, skipping insertion in model container [2022-07-21 17:24:38,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:24:37" (2/3) ... [2022-07-21 17:24:38,197 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67793479 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:24:38, skipping insertion in model container [2022-07-21 17:24:38,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:24:38" (3/3) ... [2022-07-21 17:24:38,198 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test16.i [2022-07-21 17:24:38,211 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 17:24:38,212 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-07-21 17:24:38,261 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 17:24:38,276 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3b555b04, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3ae51b60 [2022-07-21 17:24:38,276 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-07-21 17:24:38,293 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.4375) internal successors, (23), 20 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 17:24:38,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-21 17:24:38,299 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 17:24:38,300 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-07-21 17:24:38,301 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2022-07-21 17:24:38,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 17:24:38,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1067130598, now seen corresponding path program 1 times [2022-07-21 17:24:38,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 17:24:38,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1264501827] [2022-07-21 17:24:38,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 17:24:38,320 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 17:24:38,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 17:24:38,327 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 17:24:38,366 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-21 17:24:38,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 17:24:38,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-21 17:24:38,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 17:24:38,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 17:24:38,511 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 17:24:38,512 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 17:24:38,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1264501827] [2022-07-21 17:24:38,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1264501827] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 17:24:38,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 17:24:38,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 17:24:38,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551306912] [2022-07-21 17:24:38,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 17:24:38,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 17:24:38,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 17:24:38,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 17:24:38,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 17:24:38,552 INFO L87 Difference]: Start difference. First operand has 23 states, 16 states have (on average 1.4375) internal successors, (23), 20 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 17:24:38,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 17:24:38,639 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2022-07-21 17:24:38,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 17:24:38,641 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-07-21 17:24:38,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 17:24:38,649 INFO L225 Difference]: With dead ends: 37 [2022-07-21 17:24:38,649 INFO L226 Difference]: Without dead ends: 31 [2022-07-21 17:24:38,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-21 17:24:38,659 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 47 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 17:24:38,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 67 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 17:24:38,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-07-21 17:24:38,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 23. [2022-07-21 17:24:38,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 20 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 17:24:38,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2022-07-21 17:24:38,690 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 6 [2022-07-21 17:24:38,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 17:24:38,690 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2022-07-21 17:24:38,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 17:24:38,691 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2022-07-21 17:24:38,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-21 17:24:38,691 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 17:24:38,692 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 17:24:38,704 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-21 17:24:38,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 17:24:38,902 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2022-07-21 17:24:38,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 17:24:38,903 INFO L85 PathProgramCache]: Analyzing trace with hash -984431063, now seen corresponding path program 1 times [2022-07-21 17:24:38,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 17:24:38,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [508195012] [2022-07-21 17:24:38,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 17:24:38,904 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 17:24:38,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 17:24:38,905 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 17:24:38,907 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-21 17:24:38,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 17:24:38,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 17:24:38,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 17:24:38,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 17:24:38,980 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 17:24:38,980 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 17:24:38,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [508195012] [2022-07-21 17:24:38,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [508195012] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 17:24:38,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 17:24:38,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 17:24:38,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886225229] [2022-07-21 17:24:38,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 17:24:38,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 17:24:38,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 17:24:38,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 17:24:38,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 17:24:38,998 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 17:24:39,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 17:24:39,025 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2022-07-21 17:24:39,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 17:24:39,027 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-07-21 17:24:39,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 17:24:39,029 INFO L225 Difference]: With dead ends: 26 [2022-07-21 17:24:39,029 INFO L226 Difference]: Without dead ends: 21 [2022-07-21 17:24:39,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 17:24:39,035 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 1 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 17:24:39,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 36 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 17:24:39,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-07-21 17:24:39,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-07-21 17:24:39,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 18 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 17:24:39,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2022-07-21 17:24:39,045 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 8 [2022-07-21 17:24:39,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 17:24:39,046 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2022-07-21 17:24:39,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 17:24:39,047 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2022-07-21 17:24:39,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-21 17:24:39,047 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 17:24:39,047 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 17:24:39,058 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-21 17:24:39,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 17:24:39,257 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2022-07-21 17:24:39,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 17:24:39,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1513552230, now seen corresponding path program 1 times [2022-07-21 17:24:39,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 17:24:39,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1952239473] [2022-07-21 17:24:39,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 17:24:39,259 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 17:24:39,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 17:24:39,260 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 17:24:39,291 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-21 17:24:39,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 17:24:39,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-21 17:24:39,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 17:24:39,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 17:24:39,380 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 17:24:39,380 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 17:24:39,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1952239473] [2022-07-21 17:24:39,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1952239473] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 17:24:39,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 17:24:39,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 17:24:39,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30939500] [2022-07-21 17:24:39,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 17:24:39,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 17:24:39,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 17:24:39,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 17:24:39,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 17:24:39,383 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 17:24:39,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 17:24:39,419 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2022-07-21 17:24:39,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 17:24:39,420 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-07-21 17:24:39,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 17:24:39,422 INFO L225 Difference]: With dead ends: 20 [2022-07-21 17:24:39,422 INFO L226 Difference]: Without dead ends: 20 [2022-07-21 17:24:39,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 17:24:39,428 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 20 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 17:24:39,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 65 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 17:24:39,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-07-21 17:24:39,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-07-21 17:24:39,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 17 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 17:24:39,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2022-07-21 17:24:39,437 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 12 [2022-07-21 17:24:39,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 17:24:39,438 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2022-07-21 17:24:39,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 17:24:39,438 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2022-07-21 17:24:39,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-21 17:24:39,439 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 17:24:39,440 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 17:24:39,451 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-21 17:24:39,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 17:24:39,649 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2022-07-21 17:24:39,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 17:24:39,650 INFO L85 PathProgramCache]: Analyzing trace with hash -324521072, now seen corresponding path program 1 times [2022-07-21 17:24:39,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 17:24:39,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1557945615] [2022-07-21 17:24:39,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 17:24:39,651 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 17:24:39,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 17:24:39,652 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 17:24:39,654 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-21 17:24:39,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 17:24:39,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-21 17:24:39,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 17:24:39,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 17:24:39,844 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 17:24:39,844 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 17:24:39,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1557945615] [2022-07-21 17:24:39,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1557945615] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 17:24:39,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 17:24:39,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 17:24:39,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784193681] [2022-07-21 17:24:39,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 17:24:39,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 17:24:39,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 17:24:39,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 17:24:39,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-21 17:24:39,850 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 17:24:39,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 17:24:39,929 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2022-07-21 17:24:39,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 17:24:39,935 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2022-07-21 17:24:39,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 17:24:39,936 INFO L225 Difference]: With dead ends: 33 [2022-07-21 17:24:39,936 INFO L226 Difference]: Without dead ends: 33 [2022-07-21 17:24:39,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-07-21 17:24:39,937 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 44 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 17:24:39,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 57 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 17:24:39,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-07-21 17:24:39,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 27. [2022-07-21 17:24:39,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 23 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-21 17:24:39,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2022-07-21 17:24:39,942 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 13 [2022-07-21 17:24:39,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 17:24:39,942 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2022-07-21 17:24:39,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 17:24:39,946 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2022-07-21 17:24:39,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-21 17:24:39,947 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 17:24:39,947 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 17:24:39,960 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-21 17:24:40,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 17:24:40,156 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2022-07-21 17:24:40,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 17:24:40,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1418289263, now seen corresponding path program 1 times [2022-07-21 17:24:40,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 17:24:40,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [46286041] [2022-07-21 17:24:40,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 17:24:40,157 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 17:24:40,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 17:24:40,159 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 17:24:40,161 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-21 17:24:40,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 17:24:40,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-21 17:24:40,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 17:24:40,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 17:24:40,317 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 17:24:40,317 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 17:24:40,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [46286041] [2022-07-21 17:24:40,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [46286041] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 17:24:40,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 17:24:40,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 17:24:40,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388028084] [2022-07-21 17:24:40,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 17:24:40,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 17:24:40,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 17:24:40,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 17:24:40,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-21 17:24:40,319 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 17:24:40,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 17:24:40,388 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2022-07-21 17:24:40,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 17:24:40,389 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2022-07-21 17:24:40,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 17:24:40,390 INFO L225 Difference]: With dead ends: 31 [2022-07-21 17:24:40,390 INFO L226 Difference]: Without dead ends: 31 [2022-07-21 17:24:40,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-07-21 17:24:40,391 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 30 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 17:24:40,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 92 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 17:24:40,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-07-21 17:24:40,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 27. [2022-07-21 17:24:40,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 23 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-21 17:24:40,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2022-07-21 17:24:40,395 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 13 [2022-07-21 17:24:40,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 17:24:40,395 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2022-07-21 17:24:40,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 17:24:40,396 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2022-07-21 17:24:40,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-07-21 17:24:40,396 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 17:24:40,396 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 17:24:40,404 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-21 17:24:40,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 17:24:40,603 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2022-07-21 17:24:40,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 17:24:40,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1470218584, now seen corresponding path program 1 times [2022-07-21 17:24:40,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 17:24:40,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [687971200] [2022-07-21 17:24:40,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 17:24:40,604 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 17:24:40,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 17:24:40,606 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 17:24:40,607 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-21 17:24:40,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 17:24:40,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-21 17:24:40,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 17:24:40,693 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-21 17:24:40,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 17:24:40,734 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 17:24:40,734 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 17:24:40,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [687971200] [2022-07-21 17:24:40,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [687971200] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 17:24:40,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 17:24:40,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 17:24:40,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989880522] [2022-07-21 17:24:40,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 17:24:40,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 17:24:40,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 17:24:40,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 17:24:40,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 17:24:40,737 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 17:24:40,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 17:24:40,786 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2022-07-21 17:24:40,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 17:24:40,787 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-07-21 17:24:40,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 17:24:40,789 INFO L225 Difference]: With dead ends: 30 [2022-07-21 17:24:40,789 INFO L226 Difference]: Without dead ends: 30 [2022-07-21 17:24:40,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 17:24:40,791 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 12 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 17:24:40,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 55 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 17:24:40,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-07-21 17:24:40,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 18. [2022-07-21 17:24:40,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 15 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 17:24:40,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2022-07-21 17:24:40,798 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 14 [2022-07-21 17:24:40,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 17:24:40,798 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2022-07-21 17:24:40,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 17:24:40,798 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2022-07-21 17:24:40,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-07-21 17:24:40,799 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 17:24:40,799 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 17:24:40,814 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-21 17:24:41,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 17:24:41,008 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2022-07-21 17:24:41,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 17:24:41,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1469972311, now seen corresponding path program 1 times [2022-07-21 17:24:41,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 17:24:41,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [141025407] [2022-07-21 17:24:41,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 17:24:41,009 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 17:24:41,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 17:24:41,011 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 17:24:41,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-21 17:24:41,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 17:24:41,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-21 17:24:41,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 17:24:41,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 17:24:41,088 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 17:24:41,088 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 17:24:41,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [141025407] [2022-07-21 17:24:41,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [141025407] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 17:24:41,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 17:24:41,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 17:24:41,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168922611] [2022-07-21 17:24:41,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 17:24:41,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 17:24:41,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 17:24:41,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 17:24:41,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 17:24:41,090 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 17:24:41,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 17:24:41,112 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2022-07-21 17:24:41,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 17:24:41,116 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-07-21 17:24:41,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 17:24:41,118 INFO L225 Difference]: With dead ends: 18 [2022-07-21 17:24:41,118 INFO L226 Difference]: Without dead ends: 18 [2022-07-21 17:24:41,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-21 17:24:41,119 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 25 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 17:24:41,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 36 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 17:24:41,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-07-21 17:24:41,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-07-21 17:24:41,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 17:24:41,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2022-07-21 17:24:41,125 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 14 [2022-07-21 17:24:41,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 17:24:41,126 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2022-07-21 17:24:41,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 17:24:41,126 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2022-07-21 17:24:41,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-21 17:24:41,126 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 17:24:41,126 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 17:24:41,138 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-21 17:24:41,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 17:24:41,335 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2022-07-21 17:24:41,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 17:24:41,336 INFO L85 PathProgramCache]: Analyzing trace with hash 794708311, now seen corresponding path program 1 times [2022-07-21 17:24:41,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 17:24:41,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1607672162] [2022-07-21 17:24:41,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 17:24:41,337 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 17:24:41,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 17:24:41,338 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 17:24:41,341 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-21 17:24:41,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 17:24:41,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 14 conjunts are in the unsatisfiable core [2022-07-21 17:24:41,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 17:24:41,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 17:24:41,608 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 17:24:41,609 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 17:24:41,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1607672162] [2022-07-21 17:24:41,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1607672162] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 17:24:41,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 17:24:41,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 17:24:41,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322031545] [2022-07-21 17:24:41,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 17:24:41,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 17:24:41,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 17:24:41,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 17:24:41,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-07-21 17:24:41,613 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 9 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 17:24:41,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 17:24:41,632 INFO L93 Difference]: Finished difference Result 29 states and 28 transitions. [2022-07-21 17:24:41,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 17:24:41,632 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-07-21 17:24:41,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 17:24:41,633 INFO L225 Difference]: With dead ends: 29 [2022-07-21 17:24:41,633 INFO L226 Difference]: Without dead ends: 18 [2022-07-21 17:24:41,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-07-21 17:24:41,634 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 9 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 45 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 17:24:41,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 98 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 45 Unchecked, 0.0s Time] [2022-07-21 17:24:41,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-07-21 17:24:41,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-07-21 17:24:41,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 15 states have (on average 1.0) internal successors, (15), 15 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 17:24:41,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2022-07-21 17:24:41,637 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 17 [2022-07-21 17:24:41,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 17:24:41,637 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2022-07-21 17:24:41,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 17:24:41,638 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2022-07-21 17:24:41,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-21 17:24:41,638 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 17:24:41,638 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 17:24:41,654 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-21 17:24:41,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 17:24:41,848 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2022-07-21 17:24:41,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 17:24:41,848 INFO L85 PathProgramCache]: Analyzing trace with hash 923791030, now seen corresponding path program 1 times [2022-07-21 17:24:41,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 17:24:41,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [205418525] [2022-07-21 17:24:41,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 17:24:41,849 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 17:24:41,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 17:24:41,850 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) [2022-07-21 17:24:41,850 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-21 17:24:41,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 17:24:41,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 14 conjunts are in the unsatisfiable core [2022-07-21 17:24:41,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 17:24:42,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 17:24:42,028 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 17:24:42,028 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 17:24:42,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [205418525] [2022-07-21 17:24:42,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [205418525] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 17:24:42,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 17:24:42,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 17:24:42,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866392506] [2022-07-21 17:24:42,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 17:24:42,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 17:24:42,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 17:24:42,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 17:24:42,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-07-21 17:24:42,030 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand has 9 states, 8 states have (on average 1.875) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 17:24:42,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 17:24:42,086 INFO L93 Difference]: Finished difference Result 17 states and 16 transitions. [2022-07-21 17:24:42,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 17:24:42,086 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.875) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-07-21 17:24:42,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 17:24:42,087 INFO L225 Difference]: With dead ends: 17 [2022-07-21 17:24:42,087 INFO L226 Difference]: Without dead ends: 0 [2022-07-21 17:24:42,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-07-21 17:24:42,088 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 15 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 17:24:42,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 34 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 17:24:42,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-21 17:24:42,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-21 17:24:42,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 17:24:42,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-21 17:24:42,089 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2022-07-21 17:24:42,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 17:24:42,090 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-21 17:24:42,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.875) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 17:24:42,090 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-21 17:24:42,090 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-21 17:24:42,093 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE (3 of 4 remaining) [2022-07-21 17:24:42,093 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE (2 of 4 remaining) [2022-07-21 17:24:42,093 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (1 of 4 remaining) [2022-07-21 17:24:42,094 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (0 of 4 remaining) [2022-07-21 17:24:42,106 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-21 17:24:42,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 17:24:42,306 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 17:24:42,307 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-21 17:24:42,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 05:24:42 BoogieIcfgContainer [2022-07-21 17:24:42,310 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-21 17:24:42,311 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-21 17:24:42,311 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-21 17:24:42,311 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-21 17:24:42,311 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:24:38" (3/4) ... [2022-07-21 17:24:42,313 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-21 17:24:42,318 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2022-07-21 17:24:42,322 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-07-21 17:24:42,322 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-21 17:24:42,322 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-21 17:24:42,354 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-21 17:24:42,355 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-21 17:24:42,356 INFO L158 Benchmark]: Toolchain (without parser) took 5292.55ms. Allocated memory was 56.6MB in the beginning and 83.9MB in the end (delta: 27.3MB). Free memory was 33.8MB in the beginning and 27.2MB in the end (delta: 6.6MB). Peak memory consumption was 35.8MB. Max. memory is 16.1GB. [2022-07-21 17:24:42,356 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 56.6MB. Free memory was 38.2MB in the beginning and 38.2MB in the end (delta: 43.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 17:24:42,358 INFO L158 Benchmark]: CACSL2BoogieTranslator took 658.17ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 33.6MB in the beginning and 35.1MB in the end (delta: -1.5MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2022-07-21 17:24:42,358 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.91ms. Allocated memory is still 69.2MB. Free memory was 35.0MB in the beginning and 50.4MB in the end (delta: -15.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-21 17:24:42,358 INFO L158 Benchmark]: Boogie Preprocessor took 45.05ms. Allocated memory is still 69.2MB. Free memory was 50.4MB in the beginning and 49.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 17:24:42,359 INFO L158 Benchmark]: RCFGBuilder took 367.74ms. Allocated memory is still 69.2MB. Free memory was 49.0MB in the beginning and 38.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-21 17:24:42,359 INFO L158 Benchmark]: TraceAbstraction took 4117.16ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 38.0MB in the beginning and 29.3MB in the end (delta: 8.8MB). Peak memory consumption was 24.8MB. Max. memory is 16.1GB. [2022-07-21 17:24:42,359 INFO L158 Benchmark]: Witness Printer took 44.33ms. Allocated memory is still 83.9MB. Free memory was 29.3MB in the beginning and 27.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 17:24:42,361 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 56.6MB. Free memory was 38.2MB in the beginning and 38.2MB in the end (delta: 43.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 658.17ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 33.6MB in the beginning and 35.1MB in the end (delta: -1.5MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.91ms. Allocated memory is still 69.2MB. Free memory was 35.0MB in the beginning and 50.4MB in the end (delta: -15.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.05ms. Allocated memory is still 69.2MB. Free memory was 50.4MB in the beginning and 49.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 367.74ms. Allocated memory is still 69.2MB. Free memory was 49.0MB in the beginning and 38.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 4117.16ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 38.0MB in the beginning and 29.3MB in the end (delta: 8.8MB). Peak memory consumption was 24.8MB. Max. memory is 16.1GB. * Witness Printer took 44.33ms. Allocated memory is still 83.9MB. Free memory was 29.3MB in the beginning and 27.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 769]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 769]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 769]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 777]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 4.1s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 205 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 203 mSDsluCounter, 540 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 45 IncrementalHoareTripleChecker+Unchecked, 381 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 218 IncrementalHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 159 mSDtfsCounter, 218 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 117 GetRequests, 65 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=4, InterpolantAutomatonStates: 58, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 30 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 114 NumberOfCodeBlocks, 114 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 105 ConstructedInterpolants, 11 QuantifiedInterpolants, 569 SizeOfPredicates, 34 NumberOfNonLiveVariables, 430 ConjunctsInSsa, 78 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-07-21 17:24:42,397 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE