./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 574ddb4e 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_test4-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 22dc13e3a229fecb317fd9f602c1cc7d4d730ee1501bd597861fd3e87e82c9e9 --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-18 21:24:27,911 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 21:24:27,913 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 21:24:27,952 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 21:24:27,952 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 21:24:27,955 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 21:24:27,957 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 21:24:27,959 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 21:24:27,961 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 21:24:27,966 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 21:24:27,967 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 21:24:27,968 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 21:24:27,968 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 21:24:27,968 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 21:24:27,969 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 21:24:27,970 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 21:24:27,971 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 21:24:27,971 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 21:24:27,973 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 21:24:27,974 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 21:24:27,975 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 21:24:27,978 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 21:24:27,980 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 21:24:27,981 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 21:24:27,989 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 21:24:27,989 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 21:24:27,989 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 21:24:27,991 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 21:24:27,991 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 21:24:27,992 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 21:24:27,992 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 21:24:27,992 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 21:24:27,994 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 21:24:27,995 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 21:24:27,996 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 21:24:27,996 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 21:24:27,997 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 21:24:27,997 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 21:24:27,997 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 21:24:27,998 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 21:24:27,999 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 21:24:27,999 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-02-18 21:24:28,031 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 21:24:28,031 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 21:24:28,032 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 21:24:28,032 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 21:24:28,032 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-18 21:24:28,033 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-18 21:24:28,033 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 21:24:28,033 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 21:24:28,033 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 21:24:28,034 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 21:24:28,034 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-18 21:24:28,034 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-18 21:24:28,035 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 21:24:28,035 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-18 21:24:28,035 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 21:24:28,035 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-02-18 21:24:28,035 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-02-18 21:24:28,035 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-02-18 21:24:28,035 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-18 21:24:28,036 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-02-18 21:24:28,036 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-18 21:24:28,036 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 21:24:28,036 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 21:24:28,036 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 21:24:28,036 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-18 21:24:28,037 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 21:24:28,037 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 21:24:28,037 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-18 21:24:28,037 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-18 21:24:28,037 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-18 21:24:28,038 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-18 21:24:28,038 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-18 21:24:28,038 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-18 21:24:28,038 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-18 21:24:28,038 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22dc13e3a229fecb317fd9f602c1cc7d4d730ee1501bd597861fd3e87e82c9e9 [2023-02-18 21:24:28,232 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 21:24:28,247 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 21:24:28,249 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 21:24:28,250 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 21:24:28,251 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 21:24:28,252 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i [2023-02-18 21:24:29,360 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 21:24:29,589 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 21:24:29,590 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i [2023-02-18 21:24:29,609 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfea95cc0/1c66182f144942cebe721877c88569eb/FLAG2294cde46 [2023-02-18 21:24:29,624 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfea95cc0/1c66182f144942cebe721877c88569eb [2023-02-18 21:24:29,626 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 21:24:29,628 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 21:24:29,629 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 21:24:29,629 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 21:24:29,632 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 21:24:29,633 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 09:24:29" (1/1) ... [2023-02-18 21:24:29,633 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@418a0483 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:24:29, skipping insertion in model container [2023-02-18 21:24:29,633 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 09:24:29" (1/1) ... [2023-02-18 21:24:29,639 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 21:24:29,682 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 21:24:30,030 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 21:24:30,049 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) [2023-02-18 21:24:30,050 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@8bcc7e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:24:30, skipping insertion in model container [2023-02-18 21:24:30,050 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 21:24:30,052 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-02-18 21:24:30,053 INFO L158 Benchmark]: Toolchain (without parser) took 424.85ms. Allocated memory is still 148.9MB. Free memory was 100.4MB in the beginning and 86.9MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-02-18 21:24:30,054 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 115.3MB. Free memory is still 66.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 21:24:30,055 INFO L158 Benchmark]: CACSL2BoogieTranslator took 422.28ms. Allocated memory is still 148.9MB. Free memory was 100.0MB in the beginning and 87.0MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-02-18 21:24:30,056 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 115.3MB. Free memory is still 66.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 422.28ms. Allocated memory is still 148.9MB. Free memory was 100.0MB in the beginning and 87.0MB in the end (delta: 13.0MB). 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_test4-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 22dc13e3a229fecb317fd9f602c1cc7d4d730ee1501bd597861fd3e87e82c9e9 --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-18 21:24:31,736 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 21:24:31,738 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 21:24:31,770 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 21:24:31,771 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 21:24:31,774 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 21:24:31,776 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 21:24:31,778 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 21:24:31,782 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 21:24:31,786 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 21:24:31,787 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 21:24:31,789 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 21:24:31,790 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 21:24:31,792 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 21:24:31,793 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 21:24:31,794 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 21:24:31,795 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 21:24:31,796 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 21:24:31,797 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 21:24:31,798 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 21:24:31,799 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 21:24:31,800 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 21:24:31,801 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 21:24:31,801 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 21:24:31,809 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 21:24:31,810 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 21:24:31,810 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 21:24:31,811 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 21:24:31,812 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 21:24:31,813 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 21:24:31,813 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 21:24:31,818 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 21:24:31,819 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 21:24:31,820 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 21:24:31,820 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 21:24:31,821 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 21:24:31,822 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 21:24:31,822 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 21:24:31,822 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 21:24:31,823 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 21:24:31,823 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 21:24:31,824 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-02-18 21:24:31,853 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 21:24:31,854 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 21:24:31,855 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 21:24:31,855 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 21:24:31,855 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-18 21:24:31,855 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-18 21:24:31,856 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 21:24:31,856 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 21:24:31,856 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 21:24:31,856 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 21:24:31,856 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-18 21:24:31,856 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-18 21:24:31,856 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 21:24:31,857 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-18 21:24:31,857 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 21:24:31,857 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-02-18 21:24:31,857 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-02-18 21:24:31,857 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-02-18 21:24:31,857 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-18 21:24:31,857 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-02-18 21:24:31,857 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2023-02-18 21:24:31,857 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-02-18 21:24:31,857 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-18 21:24:31,858 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 21:24:31,858 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 21:24:31,865 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 21:24:31,865 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-18 21:24:31,865 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 21:24:31,866 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 21:24:31,866 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-18 21:24:31,866 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2023-02-18 21:24:31,866 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-02-18 21:24:31,866 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-18 21:24:31,867 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-18 21:24:31,867 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-18 21:24:31,867 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2023-02-18 21:24:31,867 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-18 21:24:31,867 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22dc13e3a229fecb317fd9f602c1cc7d4d730ee1501bd597861fd3e87e82c9e9 [2023-02-18 21:24:32,128 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 21:24:32,144 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 21:24:32,146 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 21:24:32,147 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 21:24:32,147 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 21:24:32,148 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i [2023-02-18 21:24:33,309 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 21:24:33,630 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 21:24:33,634 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i [2023-02-18 21:24:33,653 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e08ef855/2e7577df08114da7bd5f5f8496684604/FLAG3c4244e95 [2023-02-18 21:24:33,663 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e08ef855/2e7577df08114da7bd5f5f8496684604 [2023-02-18 21:24:33,664 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 21:24:33,665 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 21:24:33,666 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 21:24:33,666 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 21:24:33,668 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 21:24:33,669 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 09:24:33" (1/1) ... [2023-02-18 21:24:33,670 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@707c6ff9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:24:33, skipping insertion in model container [2023-02-18 21:24:33,670 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 09:24:33" (1/1) ... [2023-02-18 21:24:33,675 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 21:24:33,711 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 21:24:33,943 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 21:24:33,957 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-02-18 21:24:33,964 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 21:24:34,056 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 21:24:34,073 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 21:24:34,136 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 21:24:34,185 INFO L208 MainTranslator]: Completed translation [2023-02-18 21:24:34,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:24:34 WrapperNode [2023-02-18 21:24:34,186 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 21:24:34,187 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 21:24:34,187 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 21:24:34,187 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 21:24:34,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:24:34" (1/1) ... [2023-02-18 21:24:34,211 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:24:34" (1/1) ... [2023-02-18 21:24:34,225 INFO L138 Inliner]: procedures = 165, calls = 71, calls flagged for inlining = 21, calls inlined = 3, statements flattened = 26 [2023-02-18 21:24:34,226 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 21:24:34,226 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 21:24:34,227 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 21:24:34,227 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 21:24:34,233 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:24:34" (1/1) ... [2023-02-18 21:24:34,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:24:34" (1/1) ... [2023-02-18 21:24:34,235 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:24:34" (1/1) ... [2023-02-18 21:24:34,235 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:24:34" (1/1) ... [2023-02-18 21:24:34,239 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:24:34" (1/1) ... [2023-02-18 21:24:34,240 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:24:34" (1/1) ... [2023-02-18 21:24:34,241 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:24:34" (1/1) ... [2023-02-18 21:24:34,242 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:24:34" (1/1) ... [2023-02-18 21:24:34,244 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 21:24:34,245 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 21:24:34,245 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 21:24:34,245 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 21:24:34,246 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:24:34" (1/1) ... [2023-02-18 21:24:34,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 21:24:34,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 21:24:34,276 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) [2023-02-18 21:24:34,294 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 [2023-02-18 21:24:34,311 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-02-18 21:24:34,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-02-18 21:24:34,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-02-18 21:24:34,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-18 21:24:34,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-02-18 21:24:34,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-02-18 21:24:34,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 21:24:34,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 21:24:34,461 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 21:24:34,464 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 21:24:34,586 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 21:24:34,591 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 21:24:34,591 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2023-02-18 21:24:34,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 09:24:34 BoogieIcfgContainer [2023-02-18 21:24:34,593 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 21:24:34,594 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-18 21:24:34,594 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-18 21:24:34,597 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-18 21:24:34,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 09:24:33" (1/3) ... [2023-02-18 21:24:34,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56c57b98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 09:24:34, skipping insertion in model container [2023-02-18 21:24:34,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:24:34" (2/3) ... [2023-02-18 21:24:34,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56c57b98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 09:24:34, skipping insertion in model container [2023-02-18 21:24:34,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 09:24:34" (3/3) ... [2023-02-18 21:24:34,599 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test4-2.i [2023-02-18 21:24:34,621 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-18 21:24:34,622 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-02-18 21:24:34,665 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-18 21:24:34,671 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=PETRI_NET, 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@367b05ec, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-18 21:24:34,672 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-02-18 21:24:34,677 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 24 states have internal predecessors, (26), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-18 21:24:34,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-18 21:24:34,682 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 21:24:34,683 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 21:24:34,683 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 4 more)] === [2023-02-18 21:24:34,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 21:24:34,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1438496263, now seen corresponding path program 1 times [2023-02-18 21:24:34,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 21:24:34,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [523532284] [2023-02-18 21:24:34,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:24:34,700 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-18 21:24:34,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 21:24:34,705 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-18 21:24:34,713 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-02-18 21:24:34,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:24:34,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-18 21:24:34,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:24:34,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 21:24:34,830 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 21:24:34,831 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 21:24:34,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [523532284] [2023-02-18 21:24:34,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [523532284] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 21:24:34,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 21:24:34,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-18 21:24:34,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285706933] [2023-02-18 21:24:34,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 21:24:34,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-18 21:24:34,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 21:24:34,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-18 21:24:34,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-18 21:24:34,866 INFO L87 Difference]: Start difference. First operand has 28 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 24 states have internal predecessors, (26), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (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) [2023-02-18 21:24:34,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 21:24:34,945 INFO L93 Difference]: Finished difference Result 50 states and 55 transitions. [2023-02-18 21:24:34,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-18 21:24:34,947 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (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 11 [2023-02-18 21:24:34,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 21:24:34,954 INFO L225 Difference]: With dead ends: 50 [2023-02-18 21:24:34,955 INFO L226 Difference]: Without dead ends: 46 [2023-02-18 21:24:34,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-18 21:24:34,965 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 17 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 21:24:34,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 142 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 21:24:34,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2023-02-18 21:24:34,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 30. [2023-02-18 21:24:35,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 25 states have internal predecessors, (27), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-18 21:24:35,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2023-02-18 21:24:35,004 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 11 [2023-02-18 21:24:35,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 21:24:35,005 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2023-02-18 21:24:35,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (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) [2023-02-18 21:24:35,005 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2023-02-18 21:24:35,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-18 21:24:35,007 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 21:24:35,007 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 21:24:35,019 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-02-18 21:24:35,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-18 21:24:35,217 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 4 more)] === [2023-02-18 21:24:35,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 21:24:35,218 INFO L85 PathProgramCache]: Analyzing trace with hash -550992582, now seen corresponding path program 1 times [2023-02-18 21:24:35,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 21:24:35,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [556827749] [2023-02-18 21:24:35,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:24:35,221 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-18 21:24:35,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 21:24:35,222 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-18 21:24:35,271 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-02-18 21:24:35,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:24:35,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-18 21:24:35,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:24:35,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 21:24:35,292 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 21:24:35,293 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 21:24:35,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [556827749] [2023-02-18 21:24:35,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [556827749] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 21:24:35,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 21:24:35,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 21:24:35,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594406627] [2023-02-18 21:24:35,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 21:24:35,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 21:24:35,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 21:24:35,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 21:24:35,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-18 21:24:35,295 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2023-02-18 21:24:35,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 21:24:35,350 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions. [2023-02-18 21:24:35,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-18 21:24:35,350 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 11 [2023-02-18 21:24:35,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 21:24:35,352 INFO L225 Difference]: With dead ends: 40 [2023-02-18 21:24:35,352 INFO L226 Difference]: Without dead ends: 38 [2023-02-18 21:24:35,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-18 21:24:35,356 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 7 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 21:24:35,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 80 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 21:24:35,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-02-18 21:24:35,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 26. [2023-02-18 21:24:35,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 16 states have (on average 1.4375) internal successors, (23), 22 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-18 21:24:35,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2023-02-18 21:24:35,361 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 11 [2023-02-18 21:24:35,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 21:24:35,361 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2023-02-18 21:24:35,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2023-02-18 21:24:35,361 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2023-02-18 21:24:35,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-02-18 21:24:35,362 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 21:24:35,362 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 21:24:35,375 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-02-18 21:24:35,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-18 21:24:35,572 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 4 more)] === [2023-02-18 21:24:35,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 21:24:35,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1707085477, now seen corresponding path program 1 times [2023-02-18 21:24:35,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 21:24:35,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2047560873] [2023-02-18 21:24:35,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:24:35,574 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-18 21:24:35,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 21:24:35,575 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-18 21:24:35,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-02-18 21:24:35,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:24:35,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-18 21:24:35,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:24:35,647 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-18 21:24:35,647 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 21:24:35,647 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 21:24:35,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2047560873] [2023-02-18 21:24:35,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2047560873] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 21:24:35,648 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 21:24:35,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-18 21:24:35,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954837521] [2023-02-18 21:24:35,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 21:24:35,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-18 21:24:35,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 21:24:35,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-18 21:24:35,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-18 21:24:35,650 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-02-18 21:24:35,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 21:24:35,664 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2023-02-18 21:24:35,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-18 21:24:35,665 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2023-02-18 21:24:35,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 21:24:35,666 INFO L225 Difference]: With dead ends: 25 [2023-02-18 21:24:35,666 INFO L226 Difference]: Without dead ends: 25 [2023-02-18 21:24:35,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-18 21:24:35,667 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 13 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 21:24:35,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 76 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 21:24:35,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2023-02-18 21:24:35,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2023-02-18 21:24:35,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 16 states have (on average 1.375) internal successors, (22), 21 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-18 21:24:35,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2023-02-18 21:24:35,671 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 16 [2023-02-18 21:24:35,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 21:24:35,671 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2023-02-18 21:24:35,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-02-18 21:24:35,672 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2023-02-18 21:24:35,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-02-18 21:24:35,672 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 21:24:35,672 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 21:24:35,685 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-02-18 21:24:35,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-18 21:24:35,882 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 4 more)] === [2023-02-18 21:24:35,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 21:24:35,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1380042284, now seen corresponding path program 1 times [2023-02-18 21:24:35,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 21:24:35,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [229963165] [2023-02-18 21:24:35,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:24:35,883 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-18 21:24:35,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 21:24:35,886 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-18 21:24:35,887 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-02-18 21:24:35,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:24:35,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-18 21:24:35,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:24:36,078 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 21:24:36,078 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 21:24:36,078 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 21:24:36,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [229963165] [2023-02-18 21:24:36,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [229963165] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 21:24:36,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 21:24:36,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-18 21:24:36,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809269043] [2023-02-18 21:24:36,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 21:24:36,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-18 21:24:36,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 21:24:36,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-18 21:24:36,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-02-18 21:24:36,080 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-18 21:24:36,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 21:24:36,210 INFO L93 Difference]: Finished difference Result 46 states and 49 transitions. [2023-02-18 21:24:36,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-18 21:24:36,211 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 17 [2023-02-18 21:24:36,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 21:24:36,211 INFO L225 Difference]: With dead ends: 46 [2023-02-18 21:24:36,211 INFO L226 Difference]: Without dead ends: 46 [2023-02-18 21:24:36,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-02-18 21:24:36,212 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 32 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 21:24:36,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 78 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 21:24:36,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2023-02-18 21:24:36,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 35. [2023-02-18 21:24:36,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 28 states have internal predecessors, (31), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2023-02-18 21:24:36,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2023-02-18 21:24:36,217 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 17 [2023-02-18 21:24:36,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 21:24:36,218 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2023-02-18 21:24:36,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-18 21:24:36,218 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2023-02-18 21:24:36,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-02-18 21:24:36,219 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 21:24:36,219 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 21:24:36,230 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-02-18 21:24:36,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-18 21:24:36,420 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 4 more)] === [2023-02-18 21:24:36,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 21:24:36,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1115268428, now seen corresponding path program 1 times [2023-02-18 21:24:36,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 21:24:36,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1292953627] [2023-02-18 21:24:36,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:24:36,421 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-18 21:24:36,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 21:24:36,424 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-18 21:24:36,426 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-02-18 21:24:36,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:24:36,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-18 21:24:36,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:24:36,478 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 21:24:36,478 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 21:24:36,479 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 21:24:36,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1292953627] [2023-02-18 21:24:36,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1292953627] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 21:24:36,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 21:24:36,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-18 21:24:36,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853202167] [2023-02-18 21:24:36,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 21:24:36,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-18 21:24:36,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 21:24:36,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-18 21:24:36,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-18 21:24:36,481 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-18 21:24:36,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 21:24:36,501 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2023-02-18 21:24:36,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-18 21:24:36,501 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 17 [2023-02-18 21:24:36,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 21:24:36,502 INFO L225 Difference]: With dead ends: 32 [2023-02-18 21:24:36,502 INFO L226 Difference]: Without dead ends: 28 [2023-02-18 21:24:36,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-18 21:24:36,503 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 0 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 21:24:36,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 91 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 21:24:36,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-02-18 21:24:36,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2023-02-18 21:24:36,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 19 states have (on average 1.263157894736842) internal successors, (24), 23 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-18 21:24:36,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2023-02-18 21:24:36,506 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 17 [2023-02-18 21:24:36,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 21:24:36,506 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2023-02-18 21:24:36,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-18 21:24:36,506 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2023-02-18 21:24:36,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-02-18 21:24:36,507 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 21:24:36,507 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 21:24:36,521 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-02-18 21:24:36,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-18 21:24:36,718 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 4 more)] === [2023-02-18 21:24:36,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 21:24:36,719 INFO L85 PathProgramCache]: Analyzing trace with hash -168362105, now seen corresponding path program 1 times [2023-02-18 21:24:36,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 21:24:36,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [909400920] [2023-02-18 21:24:36,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:24:36,720 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-18 21:24:36,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 21:24:36,721 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-18 21:24:36,724 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-02-18 21:24:36,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:24:36,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-18 21:24:36,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:24:36,785 INFO L350 Elim1Store]: Elim1 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 [2023-02-18 21:24:36,794 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-18 21:24:36,794 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 21:24:36,794 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 21:24:36,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [909400920] [2023-02-18 21:24:36,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [909400920] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 21:24:36,795 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 21:24:36,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-18 21:24:36,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017059736] [2023-02-18 21:24:36,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 21:24:36,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-18 21:24:36,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 21:24:36,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-18 21:24:36,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-18 21:24:36,797 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-02-18 21:24:36,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 21:24:36,832 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2023-02-18 21:24:36,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-18 21:24:36,832 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2023-02-18 21:24:36,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 21:24:36,833 INFO L225 Difference]: With dead ends: 32 [2023-02-18 21:24:36,833 INFO L226 Difference]: Without dead ends: 32 [2023-02-18 21:24:36,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-18 21:24:36,834 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 0 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 21:24:36,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 73 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 21:24:36,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-02-18 21:24:36,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2023-02-18 21:24:36,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 26 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-18 21:24:36,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2023-02-18 21:24:36,838 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 18 [2023-02-18 21:24:36,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 21:24:36,838 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2023-02-18 21:24:36,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-02-18 21:24:36,838 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2023-02-18 21:24:36,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-02-18 21:24:36,839 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 21:24:36,839 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 21:24:36,850 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-02-18 21:24:37,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-18 21:24:37,050 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 4 more)] === [2023-02-18 21:24:37,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 21:24:37,051 INFO L85 PathProgramCache]: Analyzing trace with hash 719141576, now seen corresponding path program 1 times [2023-02-18 21:24:37,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 21:24:37,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [102382868] [2023-02-18 21:24:37,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:24:37,051 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-18 21:24:37,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 21:24:37,052 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-18 21:24:37,057 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-02-18 21:24:37,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:24:37,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-18 21:24:37,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:24:37,108 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-18 21:24:37,108 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 21:24:37,108 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 21:24:37,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [102382868] [2023-02-18 21:24:37,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [102382868] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 21:24:37,109 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 21:24:37,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-18 21:24:37,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459565454] [2023-02-18 21:24:37,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 21:24:37,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-18 21:24:37,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 21:24:37,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-18 21:24:37,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-18 21:24:37,110 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-02-18 21:24:37,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 21:24:37,127 INFO L93 Difference]: Finished difference Result 40 states and 40 transitions. [2023-02-18 21:24:37,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-18 21:24:37,127 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2023-02-18 21:24:37,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 21:24:37,128 INFO L225 Difference]: With dead ends: 40 [2023-02-18 21:24:37,128 INFO L226 Difference]: Without dead ends: 40 [2023-02-18 21:24:37,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-18 21:24:37,129 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 9 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 21:24:37,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 82 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 21:24:37,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-02-18 21:24:37,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 27. [2023-02-18 21:24:37,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 22 states have internal predecessors, (23), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-18 21:24:37,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2023-02-18 21:24:37,133 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 18 [2023-02-18 21:24:37,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 21:24:37,133 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2023-02-18 21:24:37,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-02-18 21:24:37,134 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2023-02-18 21:24:37,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-02-18 21:24:37,134 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 21:24:37,134 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 21:24:37,143 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-02-18 21:24:37,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-18 21:24:37,340 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 4 more)] === [2023-02-18 21:24:37,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 21:24:37,341 INFO L85 PathProgramCache]: Analyzing trace with hash -924257906, now seen corresponding path program 1 times [2023-02-18 21:24:37,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 21:24:37,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [356715147] [2023-02-18 21:24:37,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:24:37,341 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-18 21:24:37,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 21:24:37,343 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-18 21:24:37,343 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-02-18 21:24:37,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:24:37,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-18 21:24:37,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:24:37,413 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-18 21:24:37,418 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 21:24:37,431 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-18 21:24:37,434 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 21:24:37,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [356715147] [2023-02-18 21:24:37,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [356715147] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 21:24:37,434 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-18 21:24:37,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2023-02-18 21:24:37,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744399873] [2023-02-18 21:24:37,435 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-18 21:24:37,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-18 21:24:37,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 21:24:37,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-18 21:24:37,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-18 21:24:37,436 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-18 21:24:37,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 21:24:37,453 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2023-02-18 21:24:37,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-18 21:24:37,454 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 19 [2023-02-18 21:24:37,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 21:24:37,456 INFO L225 Difference]: With dead ends: 26 [2023-02-18 21:24:37,456 INFO L226 Difference]: Without dead ends: 26 [2023-02-18 21:24:37,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-18 21:24:37,457 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 7 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 61 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 [2023-02-18 21:24:37,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 61 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 21:24:37,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2023-02-18 21:24:37,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2023-02-18 21:24:37,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 21 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-18 21:24:37,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2023-02-18 21:24:37,467 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 19 [2023-02-18 21:24:37,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 21:24:37,468 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2023-02-18 21:24:37,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-18 21:24:37,468 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2023-02-18 21:24:37,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-02-18 21:24:37,468 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 21:24:37,469 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 21:24:37,482 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-02-18 21:24:37,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-18 21:24:37,679 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 4 more)] === [2023-02-18 21:24:37,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 21:24:37,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1412776041, now seen corresponding path program 1 times [2023-02-18 21:24:37,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 21:24:37,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1172198926] [2023-02-18 21:24:37,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:24:37,680 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-18 21:24:37,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 21:24:37,681 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-18 21:24:37,682 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-02-18 21:24:37,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:24:37,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-18 21:24:37,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:24:37,813 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 21:24:37,814 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 21:24:37,869 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-18 21:24:37,869 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 21:24:37,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1172198926] [2023-02-18 21:24:37,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1172198926] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 21:24:37,870 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-18 21:24:37,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 9 [2023-02-18 21:24:37,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107563048] [2023-02-18 21:24:37,870 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-18 21:24:37,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-02-18 21:24:37,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 21:24:37,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-02-18 21:24:37,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-02-18 21:24:37,871 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 8 states have internal predecessors, (31), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-18 21:24:37,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 21:24:37,964 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2023-02-18 21:24:37,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-18 21:24:37,965 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 8 states have internal predecessors, (31), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 20 [2023-02-18 21:24:37,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 21:24:37,965 INFO L225 Difference]: With dead ends: 25 [2023-02-18 21:24:37,965 INFO L226 Difference]: Without dead ends: 25 [2023-02-18 21:24:37,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-02-18 21:24:37,966 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 16 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 21:24:37,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 57 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 21:24:37,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2023-02-18 21:24:37,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2023-02-18 21:24:37,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 19 states have (on average 1.105263157894737) internal successors, (21), 20 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-18 21:24:37,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2023-02-18 21:24:37,970 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 20 [2023-02-18 21:24:37,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 21:24:37,970 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2023-02-18 21:24:37,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 8 states have internal predecessors, (31), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-18 21:24:37,971 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2023-02-18 21:24:37,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-02-18 21:24:37,971 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 21:24:37,972 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 21:24:37,987 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-02-18 21:24:38,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-18 21:24:38,188 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 4 more)] === [2023-02-18 21:24:38,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 21:24:38,189 INFO L85 PathProgramCache]: Analyzing trace with hash 846384368, now seen corresponding path program 1 times [2023-02-18 21:24:38,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 21:24:38,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [125422406] [2023-02-18 21:24:38,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:24:38,189 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-18 21:24:38,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 21:24:38,190 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-18 21:24:38,193 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-02-18 21:24:38,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:24:38,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-18 21:24:38,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:24:38,256 INFO L350 Elim1Store]: Elim1 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 [2023-02-18 21:24:38,308 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 21:24:38,309 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2023-02-18 21:24:38,357 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 26 [2023-02-18 21:24:38,368 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 21:24:38,368 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 21:24:38,512 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 21:24:38,513 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 21:24:38,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [125422406] [2023-02-18 21:24:38,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [125422406] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 21:24:38,513 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-18 21:24:38,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2023-02-18 21:24:38,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767090602] [2023-02-18 21:24:38,513 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-18 21:24:38,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-02-18 21:24:38,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 21:24:38,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-02-18 21:24:38,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-02-18 21:24:38,515 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand has 11 states, 10 states have (on average 2.0) internal successors, (20), 9 states have internal predecessors, (20), 2 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-18 21:24:38,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 21:24:38,653 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2023-02-18 21:24:38,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-18 21:24:38,654 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.0) internal successors, (20), 9 states have internal predecessors, (20), 2 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 21 [2023-02-18 21:24:38,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 21:24:38,655 INFO L225 Difference]: With dead ends: 32 [2023-02-18 21:24:38,655 INFO L226 Difference]: Without dead ends: 32 [2023-02-18 21:24:38,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 28 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-02-18 21:24:38,655 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 9 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 21:24:38,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 91 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 21:24:38,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-02-18 21:24:38,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2023-02-18 21:24:38,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 26 states have (on average 1.0769230769230769) internal successors, (28), 26 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-18 21:24:38,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2023-02-18 21:24:38,658 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 21 [2023-02-18 21:24:38,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 21:24:38,658 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2023-02-18 21:24:38,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.0) internal successors, (20), 9 states have internal predecessors, (20), 2 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-18 21:24:38,659 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2023-02-18 21:24:38,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-02-18 21:24:38,659 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 21:24:38,659 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 21:24:38,668 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-02-18 21:24:38,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-18 21:24:38,866 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 4 more)] === [2023-02-18 21:24:38,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 21:24:38,867 INFO L85 PathProgramCache]: Analyzing trace with hash 649870863, now seen corresponding path program 1 times [2023-02-18 21:24:38,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 21:24:38,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [14225976] [2023-02-18 21:24:38,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:24:38,867 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-18 21:24:38,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 21:24:38,868 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-18 21:24:38,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-02-18 21:24:38,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:24:38,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-18 21:24:38,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:24:38,913 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2023-02-18 21:24:38,957 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2023-02-18 21:24:38,959 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 21:24:38,962 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 21:24:39,053 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 21:24:39,054 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 21:24:39,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [14225976] [2023-02-18 21:24:39,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [14225976] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 21:24:39,054 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-18 21:24:39,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 13 [2023-02-18 21:24:39,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712798035] [2023-02-18 21:24:39,054 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-18 21:24:39,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-02-18 21:24:39,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 21:24:39,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-02-18 21:24:39,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2023-02-18 21:24:39,055 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand has 14 states, 13 states have (on average 2.076923076923077) internal successors, (27), 11 states have internal predecessors, (27), 2 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-18 21:24:39,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 21:24:39,164 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2023-02-18 21:24:39,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-02-18 21:24:39,165 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.076923076923077) internal successors, (27), 11 states have internal predecessors, (27), 2 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 21 [2023-02-18 21:24:39,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 21:24:39,165 INFO L225 Difference]: With dead ends: 31 [2023-02-18 21:24:39,165 INFO L226 Difference]: Without dead ends: 31 [2023-02-18 21:24:39,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2023-02-18 21:24:39,166 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 6 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 21:24:39,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 64 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 101 Invalid, 1 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 21:24:39,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-02-18 21:24:39,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 24. [2023-02-18 21:24:39,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 19 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-18 21:24:39,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2023-02-18 21:24:39,168 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 21 [2023-02-18 21:24:39,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 21:24:39,169 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2023-02-18 21:24:39,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.076923076923077) internal successors, (27), 11 states have internal predecessors, (27), 2 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-18 21:24:39,169 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2023-02-18 21:24:39,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-02-18 21:24:39,169 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 21:24:39,169 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 21:24:39,183 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-02-18 21:24:39,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-18 21:24:39,376 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 4 more)] === [2023-02-18 21:24:39,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 21:24:39,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1626560659, now seen corresponding path program 1 times [2023-02-18 21:24:39,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 21:24:39,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [783693306] [2023-02-18 21:24:39,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:24:39,377 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-18 21:24:39,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 21:24:39,378 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-18 21:24:39,380 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-02-18 21:24:39,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:24:39,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 19 conjunts are in the unsatisfiable core [2023-02-18 21:24:39,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:24:43,594 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-18 21:24:43,594 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 21:24:43,666 WARN L837 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_entry_point_#t~ret39#1.base_21| (_ BitVec 32))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_entry_point_#t~ret39#1.base_21|))) (= |c_ULTIMATE.start_main_old_#valid#1| (store (store |c_#valid| |v_ULTIMATE.start_entry_point_#t~ret39#1.base_21| (_ bv0 1)) |c_ULTIMATE.start_entry_point_~p~0#1.base| (_ bv0 1))))) is different from false [2023-02-18 21:24:43,668 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 21:24:43,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [783693306] [2023-02-18 21:24:43,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [783693306] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 21:24:43,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1822392577] [2023-02-18 21:24:43,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:24:43,668 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-02-18 21:24:43,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-02-18 21:24:43,676 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-02-18 21:24:43,694 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2023-02-18 21:24:43,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:24:43,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 22 conjunts are in the unsatisfiable core [2023-02-18 21:24:43,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:24:48,181 WARN L859 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| (_ bv0 32))) (exists ((|ULTIMATE.start_entry_point_~p~0#1.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |ULTIMATE.start_entry_point_~p~0#1.base|)) (exists ((|ULTIMATE.start_entry_point_~q~0#1.base| (_ BitVec 32)) (v_ArrVal_53 (_ BitVec 1))) (let ((.cse1 (store |c_ULTIMATE.start_main_old_#valid#1| |ULTIMATE.start_entry_point_~p~0#1.base| v_ArrVal_53))) (let ((.cse0 (store .cse1 |ULTIMATE.start_entry_point_~q~0#1.base| (_ bv0 1)))) (and (= |c_#valid| (store .cse0 |ULTIMATE.start_entry_point_~p~0#1.base| (_ bv0 1))) (= (_ bv0 1) (select .cse1 |ULTIMATE.start_entry_point_~q~0#1.base|)) (= (_ bv1 1) (select .cse0 |ULTIMATE.start_entry_point_~p~0#1.base|)))))) (not (= |ULTIMATE.start_entry_point_~p~0#1.base| (_ bv0 32)))))) is different from true [2023-02-18 21:24:48,187 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-18 21:24:48,187 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 21:24:48,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1822392577] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 21:24:48,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-18 21:24:48,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [11] total 21 [2023-02-18 21:24:48,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917622] [2023-02-18 21:24:48,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 21:24:48,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-02-18 21:24:48,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 21:24:48,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-02-18 21:24:48,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=483, Unknown=6, NotChecked=90, Total=650 [2023-02-18 21:24:48,190 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand has 14 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-18 21:24:48,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 21:24:48,681 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2023-02-18 21:24:48,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-02-18 21:24:48,682 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 23 [2023-02-18 21:24:48,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 21:24:48,683 INFO L225 Difference]: With dead ends: 27 [2023-02-18 21:24:48,683 INFO L226 Difference]: Without dead ends: 0 [2023-02-18 21:24:48,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 27 SyntacticMatches, 3 SemanticMatches, 36 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=171, Invalid=1091, Unknown=6, NotChecked=138, Total=1406 [2023-02-18 21:24:48,684 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 26 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 20 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-18 21:24:48,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 42 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 106 Invalid, 0 Unknown, 20 Unchecked, 0.2s Time] [2023-02-18 21:24:48,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-18 21:24:48,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-18 21:24:48,685 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) [2023-02-18 21:24:48,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-18 21:24:48,685 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2023-02-18 21:24:48,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 21:24:48,685 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-18 21:24:48,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-18 21:24:48,685 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-18 21:24:48,685 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-18 21:24:48,687 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE (6 of 7 remaining) [2023-02-18 21:24:48,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE (5 of 7 remaining) [2023-02-18 21:24:48,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (4 of 7 remaining) [2023-02-18 21:24:48,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_FREE (3 of 7 remaining) [2023-02-18 21:24:48,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE (2 of 7 remaining) [2023-02-18 21:24:48,689 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE (1 of 7 remaining) [2023-02-18 21:24:48,689 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2023-02-18 21:24:48,695 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2023-02-18 21:24:48,899 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-02-18 21:24:49,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-18 21:24:49,095 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 21:24:49,096 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-18 21:24:49,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.02 09:24:49 BoogieIcfgContainer [2023-02-18 21:24:49,098 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-18 21:24:49,099 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-18 21:24:49,099 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-18 21:24:49,099 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-18 21:24:49,100 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 09:24:34" (3/4) ... [2023-02-18 21:24:49,103 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-18 21:24:49,107 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2023-02-18 21:24:49,110 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-02-18 21:24:49,110 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-02-18 21:24:49,110 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-02-18 21:24:49,141 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-18 21:24:49,144 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-18 21:24:49,144 INFO L158 Benchmark]: Toolchain (without parser) took 15478.99ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 47.1MB in the beginning and 44.0MB in the end (delta: 3.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-02-18 21:24:49,145 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 71.3MB. Free memory was 49.1MB in the beginning and 49.0MB in the end (delta: 94.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 21:24:49,145 INFO L158 Benchmark]: CACSL2BoogieTranslator took 519.75ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 46.9MB in the beginning and 53.7MB in the end (delta: -6.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-02-18 21:24:49,145 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.17ms. Allocated memory is still 86.0MB. Free memory was 53.7MB in the beginning and 51.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 21:24:49,146 INFO L158 Benchmark]: Boogie Preprocessor took 17.89ms. Allocated memory is still 86.0MB. Free memory was 51.6MB in the beginning and 50.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 21:24:49,146 INFO L158 Benchmark]: RCFGBuilder took 347.78ms. Allocated memory is still 86.0MB. Free memory was 50.1MB in the beginning and 61.8MB in the end (delta: -11.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-02-18 21:24:49,146 INFO L158 Benchmark]: TraceAbstraction took 14504.43ms. Allocated memory is still 86.0MB. Free memory was 61.0MB in the beginning and 47.2MB in the end (delta: 13.8MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2023-02-18 21:24:49,147 INFO L158 Benchmark]: Witness Printer took 44.96ms. Allocated memory is still 86.0MB. Free memory was 46.5MB in the beginning and 44.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 21:24:49,150 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 71.3MB. Free memory was 49.1MB in the beginning and 49.0MB in the end (delta: 94.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 519.75ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 46.9MB in the beginning and 53.7MB in the end (delta: -6.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.17ms. Allocated memory is still 86.0MB. Free memory was 53.7MB in the beginning and 51.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.89ms. Allocated memory is still 86.0MB. Free memory was 51.6MB in the beginning and 50.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 347.78ms. Allocated memory is still 86.0MB. Free memory was 50.1MB in the beginning and 61.8MB in the end (delta: -11.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 14504.43ms. Allocated memory is still 86.0MB. Free memory was 61.0MB in the beginning and 47.2MB in the end (delta: 13.8MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. * Witness Printer took 44.96ms. Allocated memory is still 86.0MB. Free memory was 46.5MB in the beginning and 44.0MB in the end (delta: 2.6MB). 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: 761]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 761]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 761]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 762]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 762]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 762]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 765]: 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, 28 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 14.4s, OverallIterations: 12, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 145 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 142 mSDsluCounter, 937 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 20 IncrementalHoareTripleChecker+Unchecked, 659 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 628 IncrementalHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 278 mSDtfsCounter, 628 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 325 GetRequests, 223 SyntacticMatches, 9 SemanticMatches, 93 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 287 ImplicationChecksByTransitivity, 9.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=4, InterpolantAutomatonStates: 84, 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, 12 MinimizatonAttempts, 59 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 9.5s InterpolantComputationTime, 235 NumberOfCodeBlocks, 235 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 299 ConstructedInterpolants, 57 QuantifiedInterpolants, 2298 SizeOfPredicates, 11 NumberOfNonLiveVariables, 745 ConjunctsInSsa, 110 ConjunctsInUnsatCore, 17 InterpolantComputations, 8 PerfectInterpolantSequences, 42/60 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 7 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-02-18 21:24:49,176 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE