./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/goblint-regression/06-symbeq_15-list_entry_nr.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b8dbc81d 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 ../../../trunk/examples/svcomp/goblint-regression/06-symbeq_15-list_entry_nr.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 23d465ba9caf460ed15aca3aec6b262b1ee2c4f0003cc0e5fbc446c20cfe164a --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 03:44:16,687 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 03:44:16,689 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 03:44:16,737 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 03:44:16,738 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 03:44:16,741 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 03:44:16,744 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 03:44:16,747 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 03:44:16,749 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 03:44:16,750 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 03:44:16,751 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 03:44:16,753 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 03:44:16,754 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 03:44:16,759 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 03:44:16,760 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 03:44:16,762 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 03:44:16,763 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 03:44:16,763 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 03:44:16,765 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 03:44:16,769 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 03:44:16,772 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 03:44:16,777 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 03:44:16,777 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 03:44:16,778 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 03:44:16,781 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 03:44:16,783 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 03:44:16,783 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 03:44:16,786 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 03:44:16,786 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 03:44:16,787 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 03:44:16,787 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 03:44:16,788 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 03:44:16,791 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 03:44:16,792 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 03:44:16,793 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 03:44:16,793 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 03:44:16,793 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 03:44:16,794 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 03:44:16,795 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 03:44:16,796 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 03:44:16,796 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 03:44:16,798 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-08-30 03:44:16,832 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 03:44:16,832 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 03:44:16,833 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 03:44:16,833 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 03:44:16,834 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 03:44:16,834 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 03:44:16,835 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 03:44:16,835 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 03:44:16,835 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 03:44:16,835 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 03:44:16,836 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 03:44:16,836 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 03:44:16,837 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 03:44:16,837 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 03:44:16,837 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 03:44:16,837 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-30 03:44:16,837 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-30 03:44:16,838 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-30 03:44:16,838 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 03:44:16,838 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-30 03:44:16,838 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 03:44:16,838 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 03:44:16,839 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 03:44:16,839 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 03:44:16,839 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 03:44:16,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:44:16,839 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 03:44:16,840 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 03:44:16,840 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 03:44:16,840 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 03:44:16,840 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 03:44:16,840 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 03:44:16,841 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 03:44:16,841 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 03:44:16,841 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23d465ba9caf460ed15aca3aec6b262b1ee2c4f0003cc0e5fbc446c20cfe164a Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 03:44:17,109 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 03:44:17,126 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 03:44:17,128 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 03:44:17,129 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 03:44:17,130 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 03:44:17,131 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/06-symbeq_15-list_entry_nr.i [2023-08-30 03:44:18,407 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 03:44:18,728 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 03:44:18,731 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/06-symbeq_15-list_entry_nr.i [2023-08-30 03:44:18,754 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ea2119d3/b20c8ce3e2004b969c1f0533be65cfc8/FLAG79188e5e7 [2023-08-30 03:44:18,765 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ea2119d3/b20c8ce3e2004b969c1f0533be65cfc8 [2023-08-30 03:44:18,768 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 03:44:18,769 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 03:44:18,771 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 03:44:18,771 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 03:44:18,774 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 03:44:18,774 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:44:18" (1/1) ... [2023-08-30 03:44:18,777 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f7d50e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:44:18, skipping insertion in model container [2023-08-30 03:44:18,777 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:44:18" (1/1) ... [2023-08-30 03:44:18,781 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 03:44:18,812 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 03:44:19,170 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:44:19,182 ERROR L324 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) [2023-08-30 03:44:19,183 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3b8582e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:44:19, skipping insertion in model container [2023-08-30 03:44:19,183 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 03:44:19,185 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-08-30 03:44:19,186 INFO L158 Benchmark]: Toolchain (without parser) took 416.61ms. Allocated memory is still 81.8MB. Free memory was 56.1MB in the beginning and 41.2MB in the end (delta: 14.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-08-30 03:44:19,187 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 60.8MB. Free memory is still 37.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:44:19,187 INFO L158 Benchmark]: CACSL2BoogieTranslator took 413.56ms. Allocated memory is still 81.8MB. Free memory was 56.1MB in the beginning and 41.2MB in the end (delta: 14.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-08-30 03:44:19,188 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 60.8MB. Free memory is still 37.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 413.56ms. Allocated memory is still 81.8MB. Free memory was 56.1MB in the beginning and 41.2MB in the end (delta: 14.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1233]: 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 ../../../trunk/examples/svcomp/goblint-regression/06-symbeq_15-list_entry_nr.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 23d465ba9caf460ed15aca3aec6b262b1ee2c4f0003cc0e5fbc446c20cfe164a --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 03:44:20,707 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 03:44:20,709 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 03:44:20,737 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 03:44:20,749 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 03:44:20,752 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 03:44:20,756 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 03:44:20,758 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 03:44:20,760 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 03:44:20,762 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 03:44:20,763 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 03:44:20,764 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 03:44:20,765 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 03:44:20,769 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 03:44:20,770 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 03:44:20,773 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 03:44:20,774 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 03:44:20,775 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 03:44:20,777 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 03:44:20,778 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 03:44:20,781 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 03:44:20,784 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 03:44:20,785 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 03:44:20,786 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 03:44:20,788 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 03:44:20,791 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 03:44:20,791 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 03:44:20,792 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 03:44:20,793 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 03:44:20,793 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 03:44:20,793 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 03:44:20,794 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 03:44:20,795 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 03:44:20,796 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 03:44:20,796 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 03:44:20,797 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 03:44:20,798 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 03:44:20,798 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 03:44:20,798 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 03:44:20,799 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 03:44:20,799 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 03:44:20,800 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-08-30 03:44:20,824 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 03:44:20,825 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 03:44:20,826 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 03:44:20,826 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 03:44:20,827 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 03:44:20,827 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 03:44:20,827 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 03:44:20,827 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 03:44:20,827 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 03:44:20,828 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 03:44:20,828 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 03:44:20,829 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 03:44:20,829 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 03:44:20,829 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 03:44:20,829 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 03:44:20,829 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-30 03:44:20,829 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-30 03:44:20,829 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-30 03:44:20,829 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 03:44:20,830 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-30 03:44:20,830 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2023-08-30 03:44:20,830 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-08-30 03:44:20,830 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 03:44:20,830 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 03:44:20,830 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 03:44:20,830 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 03:44:20,831 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 03:44:20,831 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:44:20,831 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 03:44:20,831 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 03:44:20,831 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2023-08-30 03:44:20,831 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-08-30 03:44:20,832 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 03:44:20,832 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 03:44:20,832 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 03:44:20,832 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2023-08-30 03:44:20,832 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 03:44:20,832 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23d465ba9caf460ed15aca3aec6b262b1ee2c4f0003cc0e5fbc446c20cfe164a Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 03:44:21,083 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 03:44:21,103 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 03:44:21,104 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 03:44:21,105 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 03:44:21,105 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 03:44:21,106 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/06-symbeq_15-list_entry_nr.i [2023-08-30 03:44:22,140 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 03:44:22,374 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 03:44:22,374 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/06-symbeq_15-list_entry_nr.i [2023-08-30 03:44:22,395 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/388e90e2b/a8fbf8b0be544f5584ad44eb81e7f20b/FLAGc6840cda5 [2023-08-30 03:44:22,405 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/388e90e2b/a8fbf8b0be544f5584ad44eb81e7f20b [2023-08-30 03:44:22,407 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 03:44:22,408 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 03:44:22,409 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 03:44:22,409 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 03:44:22,412 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 03:44:22,413 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:44:22" (1/1) ... [2023-08-30 03:44:22,414 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45f836e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:44:22, skipping insertion in model container [2023-08-30 03:44:22,414 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:44:22" (1/1) ... [2023-08-30 03:44:22,419 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 03:44:22,478 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 03:44:22,892 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:44:22,910 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-08-30 03:44:22,917 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 03:44:22,950 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:44:22,954 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 03:44:22,991 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:44:23,059 INFO L208 MainTranslator]: Completed translation [2023-08-30 03:44:23,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:44:23 WrapperNode [2023-08-30 03:44:23,059 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 03:44:23,060 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 03:44:23,060 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 03:44:23,060 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 03:44:23,064 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:44:23" (1/1) ... [2023-08-30 03:44:23,088 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:44:23" (1/1) ... [2023-08-30 03:44:23,110 INFO L138 Inliner]: procedures = 366, calls = 15, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 53 [2023-08-30 03:44:23,111 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 03:44:23,112 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 03:44:23,112 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 03:44:23,112 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 03:44:23,118 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:44:23" (1/1) ... [2023-08-30 03:44:23,118 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:44:23" (1/1) ... [2023-08-30 03:44:23,125 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:44:23" (1/1) ... [2023-08-30 03:44:23,125 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:44:23" (1/1) ... [2023-08-30 03:44:23,130 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:44:23" (1/1) ... [2023-08-30 03:44:23,131 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:44:23" (1/1) ... [2023-08-30 03:44:23,132 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:44:23" (1/1) ... [2023-08-30 03:44:23,133 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:44:23" (1/1) ... [2023-08-30 03:44:23,135 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 03:44:23,136 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 03:44:23,137 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 03:44:23,137 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 03:44:23,137 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:44:23" (1/1) ... [2023-08-30 03:44:23,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:44:23,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 03:44:23,170 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) [2023-08-30 03:44:23,196 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 [2023-08-30 03:44:23,216 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-08-30 03:44:23,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 03:44:23,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 03:44:23,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-08-30 03:44:23,216 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 03:44:23,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-30 03:44:23,217 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-30 03:44:23,217 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-30 03:44:23,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 03:44:23,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 03:44:23,218 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 03:44:23,385 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 03:44:23,386 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 03:44:23,567 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 03:44:23,572 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 03:44:23,573 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 03:44:23,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:44:23 BoogieIcfgContainer [2023-08-30 03:44:23,575 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 03:44:23,576 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 03:44:23,577 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 03:44:23,579 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 03:44:23,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 03:44:22" (1/3) ... [2023-08-30 03:44:23,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@592c97ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:44:23, skipping insertion in model container [2023-08-30 03:44:23,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:44:23" (2/3) ... [2023-08-30 03:44:23,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@592c97ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:44:23, skipping insertion in model container [2023-08-30 03:44:23,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:44:23" (3/3) ... [2023-08-30 03:44:23,581 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_15-list_entry_nr.i [2023-08-30 03:44:23,594 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 03:44:23,595 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2023-08-30 03:44:23,595 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 03:44:23,683 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 03:44:23,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 76 places, 72 transitions, 149 flow [2023-08-30 03:44:23,753 INFO L130 PetriNetUnfolder]: 0/71 cut-off events. [2023-08-30 03:44:23,753 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:44:23,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 71 events. 0/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 80 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-30 03:44:23,755 INFO L82 GeneralOperation]: Start removeDead. Operand has 76 places, 72 transitions, 149 flow [2023-08-30 03:44:23,759 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 75 places, 71 transitions, 145 flow [2023-08-30 03:44:23,761 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 03:44:23,777 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 75 places, 71 transitions, 145 flow [2023-08-30 03:44:23,778 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 75 places, 71 transitions, 145 flow [2023-08-30 03:44:23,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 75 places, 71 transitions, 145 flow [2023-08-30 03:44:23,800 INFO L130 PetriNetUnfolder]: 0/71 cut-off events. [2023-08-30 03:44:23,800 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:44:23,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 71 events. 0/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 81 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-30 03:44:23,801 INFO L119 LiptonReduction]: Number of co-enabled transitions 988 [2023-08-30 03:44:31,584 INFO L134 LiptonReduction]: Checked pairs total: 2011 [2023-08-30 03:44:31,584 INFO L136 LiptonReduction]: Total number of compositions: 88 [2023-08-30 03:44:31,595 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 03:44:31,607 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;@6d47bfbe, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 03:44:31,608 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2023-08-30 03:44:31,609 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-30 03:44:31,610 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:44:31,610 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:44:31,610 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-30 03:44:31,611 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2023-08-30 03:44:31,616 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:44:31,617 INFO L85 PathProgramCache]: Analyzing trace with hash 283, now seen corresponding path program 1 times [2023-08-30 03:44:31,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-30 03:44:31,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [471364984] [2023-08-30 03:44:31,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:44:31,626 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 [2023-08-30 03:44:31,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-30 03:44:31,656 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) [2023-08-30 03:44:31,658 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 [2023-08-30 03:44:31,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:44:31,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2023-08-30 03:44:31,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 03:44:31,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:44:31,702 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 03:44:31,703 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-08-30 03:44:31,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [471364984] [2023-08-30 03:44:31,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [471364984] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:44:31,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:44:31,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-30 03:44:31,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953882406] [2023-08-30 03:44:31,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:44:31,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 03:44:31,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-08-30 03:44:31,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 03:44:31,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 03:44:31,724 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 160 [2023-08-30 03:44:31,726 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 24 transitions, 51 flow. Second operand has 2 states, 2 states have (on average 71.5) internal successors, (143), 2 states have internal predecessors, (143), 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) [2023-08-30 03:44:31,726 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:44:31,726 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 160 [2023-08-30 03:44:31,726 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:44:31,779 INFO L130 PetriNetUnfolder]: 40/103 cut-off events. [2023-08-30 03:44:31,780 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:44:31,781 INFO L83 FinitePrefix]: Finished finitePrefix Result has 203 conditions, 103 events. 40/103 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 392 event pairs, 40 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 194. Up to 96 conditions per place. [2023-08-30 03:44:31,782 INFO L137 encePairwiseOnDemand]: 153/160 looper letters, 15 selfloop transitions, 0 changer transitions 0/17 dead transitions. [2023-08-30 03:44:31,783 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 17 transitions, 67 flow [2023-08-30 03:44:31,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 03:44:31,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 03:44:31,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 164 transitions. [2023-08-30 03:44:31,824 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5125 [2023-08-30 03:44:31,825 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 164 transitions. [2023-08-30 03:44:31,825 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 164 transitions. [2023-08-30 03:44:31,826 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:44:31,828 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 164 transitions. [2023-08-30 03:44:31,830 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 82.0) internal successors, (164), 2 states have internal predecessors, (164), 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) [2023-08-30 03:44:31,834 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 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) [2023-08-30 03:44:31,834 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 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) [2023-08-30 03:44:31,836 INFO L175 Difference]: Start difference. First operand has 28 places, 24 transitions, 51 flow. Second operand 2 states and 164 transitions. [2023-08-30 03:44:31,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 17 transitions, 67 flow [2023-08-30 03:44:31,838 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 17 transitions, 66 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 03:44:31,839 INFO L231 Difference]: Finished difference. Result has 21 places, 17 transitions, 36 flow [2023-08-30 03:44:31,841 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=36, PETRI_PLACES=21, PETRI_TRANSITIONS=17} [2023-08-30 03:44:31,843 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -7 predicate places. [2023-08-30 03:44:31,843 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 17 transitions, 36 flow [2023-08-30 03:44:31,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 71.5) internal successors, (143), 2 states have internal predecessors, (143), 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) [2023-08-30 03:44:31,844 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:44:31,844 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 03:44:31,853 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 (2)] Ended with exit code 0 [2023-08-30 03:44:32,051 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 [2023-08-30 03:44:32,052 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2023-08-30 03:44:32,052 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:44:32,052 INFO L85 PathProgramCache]: Analyzing trace with hash 279299, now seen corresponding path program 1 times [2023-08-30 03:44:32,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-30 03:44:32,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [545927122] [2023-08-30 03:44:32,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:44:32,053 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 [2023-08-30 03:44:32,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-30 03:44:32,054 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) [2023-08-30 03:44:32,056 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 [2023-08-30 03:44:32,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:44:32,108 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-30 03:44:32,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 03:44:32,171 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2023-08-30 03:44:32,172 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 1 case distinctions, treesize of input 9 treesize of output 19 [2023-08-30 03:44:32,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:44:32,183 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 03:44:32,183 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-08-30 03:44:32,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [545927122] [2023-08-30 03:44:32,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [545927122] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:44:32,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:44:32,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 03:44:32,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889479889] [2023-08-30 03:44:32,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:44:32,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 03:44:32,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-08-30 03:44:32,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 03:44:32,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 03:44:32,237 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 160 [2023-08-30 03:44:32,238 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 17 transitions, 36 flow. Second operand has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 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) [2023-08-30 03:44:32,238 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:44:32,238 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 160 [2023-08-30 03:44:32,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:44:32,290 INFO L130 PetriNetUnfolder]: 35/90 cut-off events. [2023-08-30 03:44:32,290 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:44:32,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 179 conditions, 90 events. 35/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 317 event pairs, 25 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 176. Up to 62 conditions per place. [2023-08-30 03:44:32,291 INFO L137 encePairwiseOnDemand]: 156/160 looper letters, 16 selfloop transitions, 3 changer transitions 0/21 dead transitions. [2023-08-30 03:44:32,291 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 21 transitions, 82 flow [2023-08-30 03:44:32,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 03:44:32,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 03:44:32,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 224 transitions. [2023-08-30 03:44:32,293 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4666666666666667 [2023-08-30 03:44:32,293 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 224 transitions. [2023-08-30 03:44:32,294 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 224 transitions. [2023-08-30 03:44:32,294 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:44:32,294 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 224 transitions. [2023-08-30 03:44:32,295 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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) [2023-08-30 03:44:32,296 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 160.0) internal successors, (640), 4 states have internal predecessors, (640), 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) [2023-08-30 03:44:32,297 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 160.0) internal successors, (640), 4 states have internal predecessors, (640), 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) [2023-08-30 03:44:32,297 INFO L175 Difference]: Start difference. First operand has 21 places, 17 transitions, 36 flow. Second operand 3 states and 224 transitions. [2023-08-30 03:44:32,297 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 21 transitions, 82 flow [2023-08-30 03:44:32,297 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 21 transitions, 82 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 03:44:32,298 INFO L231 Difference]: Finished difference. Result has 22 places, 16 transitions, 40 flow [2023-08-30 03:44:32,298 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=40, PETRI_PLACES=22, PETRI_TRANSITIONS=16} [2023-08-30 03:44:32,298 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -6 predicate places. [2023-08-30 03:44:32,298 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 16 transitions, 40 flow [2023-08-30 03:44:32,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 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) [2023-08-30 03:44:32,299 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:44:32,299 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 03:44:32,308 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 (3)] Forceful destruction successful, exit code 0 [2023-08-30 03:44:32,508 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 [2023-08-30 03:44:32,508 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2023-08-30 03:44:32,509 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:44:32,509 INFO L85 PathProgramCache]: Analyzing trace with hash 279298, now seen corresponding path program 1 times [2023-08-30 03:44:32,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-30 03:44:32,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [509654885] [2023-08-30 03:44:32,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:44:32,510 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 [2023-08-30 03:44:32,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-30 03:44:32,510 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) [2023-08-30 03:44:32,512 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 [2023-08-30 03:44:32,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:44:32,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 10 conjunts are in the unsatisfiable core [2023-08-30 03:44:32,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 03:44:32,576 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2023-08-30 03:44:32,577 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 1 case distinctions, treesize of input 9 treesize of output 15 [2023-08-30 03:44:32,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:44:32,593 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 03:44:32,593 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-08-30 03:44:32,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [509654885] [2023-08-30 03:44:32,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [509654885] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:44:32,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:44:32,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 03:44:32,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298030382] [2023-08-30 03:44:32,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:44:32,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 03:44:32,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-08-30 03:44:32,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 03:44:32,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 03:44:32,663 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 160 [2023-08-30 03:44:32,664 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 16 transitions, 40 flow. Second operand has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 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) [2023-08-30 03:44:32,664 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:44:32,664 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 160 [2023-08-30 03:44:32,664 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:44:32,705 INFO L130 PetriNetUnfolder]: 24/64 cut-off events. [2023-08-30 03:44:32,706 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 03:44:32,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 64 events. 24/64 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 196 event pairs, 24 based on Foata normal form. 0/49 useless extension candidates. Maximal degree in co-relation 137. Up to 60 conditions per place. [2023-08-30 03:44:32,706 INFO L137 encePairwiseOnDemand]: 157/160 looper letters, 11 selfloop transitions, 1 changer transitions 0/14 dead transitions. [2023-08-30 03:44:32,707 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 14 transitions, 60 flow [2023-08-30 03:44:32,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 03:44:32,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 03:44:32,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 218 transitions. [2023-08-30 03:44:32,709 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45416666666666666 [2023-08-30 03:44:32,709 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 218 transitions. [2023-08-30 03:44:32,709 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 218 transitions. [2023-08-30 03:44:32,710 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:44:32,710 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 218 transitions. [2023-08-30 03:44:32,711 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 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) [2023-08-30 03:44:32,712 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 160.0) internal successors, (640), 4 states have internal predecessors, (640), 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) [2023-08-30 03:44:32,712 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 160.0) internal successors, (640), 4 states have internal predecessors, (640), 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) [2023-08-30 03:44:32,713 INFO L175 Difference]: Start difference. First operand has 22 places, 16 transitions, 40 flow. Second operand 3 states and 218 transitions. [2023-08-30 03:44:32,713 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 14 transitions, 60 flow [2023-08-30 03:44:32,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 14 transitions, 54 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 03:44:32,714 INFO L231 Difference]: Finished difference. Result has 20 places, 14 transitions, 32 flow [2023-08-30 03:44:32,714 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=32, PETRI_PLACES=20, PETRI_TRANSITIONS=14} [2023-08-30 03:44:32,715 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -8 predicate places. [2023-08-30 03:44:32,715 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 14 transitions, 32 flow [2023-08-30 03:44:32,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 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) [2023-08-30 03:44:32,715 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:44:32,715 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-30 03:44:32,726 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 [2023-08-30 03:44:32,927 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 [2023-08-30 03:44:32,927 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2023-08-30 03:44:32,928 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:44:32,928 INFO L85 PathProgramCache]: Analyzing trace with hash 8658517, now seen corresponding path program 1 times [2023-08-30 03:44:32,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-30 03:44:32,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [449884069] [2023-08-30 03:44:32,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:44:32,929 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 [2023-08-30 03:44:32,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-30 03:44:32,930 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) [2023-08-30 03:44:32,933 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 [2023-08-30 03:44:32,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:44:32,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-30 03:44:32,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 03:44:32,996 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2023-08-30 03:44:32,996 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 1 case distinctions, treesize of input 9 treesize of output 19 [2023-08-30 03:44:33,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:44:33,010 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 03:44:33,011 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-08-30 03:44:33,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [449884069] [2023-08-30 03:44:33,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [449884069] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:44:33,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:44:33,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 03:44:33,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852809719] [2023-08-30 03:44:33,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:44:33,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 03:44:33,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-08-30 03:44:33,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 03:44:33,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 03:44:33,084 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 160 [2023-08-30 03:44:33,084 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 14 transitions, 32 flow. Second operand has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 states have internal predecessors, (252), 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) [2023-08-30 03:44:33,084 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:44:33,084 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 160 [2023-08-30 03:44:33,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:44:33,160 INFO L130 PetriNetUnfolder]: 22/68 cut-off events. [2023-08-30 03:44:33,160 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:44:33,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 68 events. 22/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 208 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 139. Up to 36 conditions per place. [2023-08-30 03:44:33,161 INFO L137 encePairwiseOnDemand]: 152/160 looper letters, 18 selfloop transitions, 8 changer transitions 0/26 dead transitions. [2023-08-30 03:44:33,161 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 26 transitions, 108 flow [2023-08-30 03:44:33,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 03:44:33,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 03:44:33,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 339 transitions. [2023-08-30 03:44:33,162 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42375 [2023-08-30 03:44:33,162 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 339 transitions. [2023-08-30 03:44:33,162 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 339 transitions. [2023-08-30 03:44:33,162 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:44:33,163 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 339 transitions. [2023-08-30 03:44:33,163 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 67.8) internal successors, (339), 5 states have internal predecessors, (339), 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) [2023-08-30 03:44:33,164 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 160.0) internal successors, (960), 6 states have internal predecessors, (960), 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) [2023-08-30 03:44:33,165 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 160.0) internal successors, (960), 6 states have internal predecessors, (960), 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) [2023-08-30 03:44:33,165 INFO L175 Difference]: Start difference. First operand has 20 places, 14 transitions, 32 flow. Second operand 5 states and 339 transitions. [2023-08-30 03:44:33,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 26 transitions, 108 flow [2023-08-30 03:44:33,165 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 26 transitions, 107 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 03:44:33,166 INFO L231 Difference]: Finished difference. Result has 27 places, 19 transitions, 85 flow [2023-08-30 03:44:33,166 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=31, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=85, PETRI_PLACES=27, PETRI_TRANSITIONS=19} [2023-08-30 03:44:33,166 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -1 predicate places. [2023-08-30 03:44:33,166 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 19 transitions, 85 flow [2023-08-30 03:44:33,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 states have internal predecessors, (252), 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) [2023-08-30 03:44:33,166 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:44:33,167 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:44:33,175 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 [2023-08-30 03:44:33,373 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 [2023-08-30 03:44:33,374 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2023-08-30 03:44:33,374 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:44:33,374 INFO L85 PathProgramCache]: Analyzing trace with hash 258175388, now seen corresponding path program 1 times [2023-08-30 03:44:33,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-30 03:44:33,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1709898774] [2023-08-30 03:44:33,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:44:33,375 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 [2023-08-30 03:44:33,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-30 03:44:33,376 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) [2023-08-30 03:44:33,378 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 [2023-08-30 03:44:33,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 03:44:33,470 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-30 03:44:33,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 03:44:33,541 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-08-30 03:44:33,541 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-30 03:44:33,542 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (17 of 18 remaining) [2023-08-30 03:44:33,543 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 18 remaining) [2023-08-30 03:44:33,543 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 18 remaining) [2023-08-30 03:44:33,543 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 18 remaining) [2023-08-30 03:44:33,543 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 18 remaining) [2023-08-30 03:44:33,543 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 18 remaining) [2023-08-30 03:44:33,544 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 18 remaining) [2023-08-30 03:44:33,544 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 18 remaining) [2023-08-30 03:44:33,544 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 18 remaining) [2023-08-30 03:44:33,544 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 18 remaining) [2023-08-30 03:44:33,544 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 18 remaining) [2023-08-30 03:44:33,544 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 18 remaining) [2023-08-30 03:44:33,544 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 18 remaining) [2023-08-30 03:44:33,544 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 18 remaining) [2023-08-30 03:44:33,544 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 18 remaining) [2023-08-30 03:44:33,545 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 18 remaining) [2023-08-30 03:44:33,545 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 18 remaining) [2023-08-30 03:44:33,545 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 18 remaining) [2023-08-30 03:44:33,570 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 (6)] Forceful destruction successful, exit code 0 [2023-08-30 03:44:33,745 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 [2023-08-30 03:44:33,746 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-08-30 03:44:33,750 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 03:44:33,750 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 03:44:33,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 03:44:33 BasicIcfg [2023-08-30 03:44:33,782 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 03:44:33,783 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 03:44:33,783 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 03:44:33,783 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 03:44:33,783 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:44:23" (3/4) ... [2023-08-30 03:44:33,784 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-30 03:44:33,785 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 03:44:33,797 INFO L158 Benchmark]: Toolchain (without parser) took 11376.64ms. Allocated memory was 77.6MB in the beginning and 136.3MB in the end (delta: 58.7MB). Free memory was 49.6MB in the beginning and 107.8MB in the end (delta: -58.3MB). Peak memory consumption was 2.0MB. Max. memory is 16.1GB. [2023-08-30 03:44:33,797 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 77.6MB. Free memory is still 54.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:44:33,797 INFO L158 Benchmark]: CACSL2BoogieTranslator took 650.28ms. Allocated memory was 77.6MB in the beginning and 113.2MB in the end (delta: 35.7MB). Free memory was 49.3MB in the beginning and 82.3MB in the end (delta: -32.9MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. [2023-08-30 03:44:33,798 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.03ms. Allocated memory is still 113.2MB. Free memory was 82.3MB in the beginning and 79.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 03:44:33,798 INFO L158 Benchmark]: Boogie Preprocessor took 23.13ms. Allocated memory is still 113.2MB. Free memory was 79.7MB in the beginning and 77.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 03:44:33,798 INFO L158 Benchmark]: RCFGBuilder took 438.30ms. Allocated memory is still 113.2MB. Free memory was 77.6MB in the beginning and 60.8MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-08-30 03:44:33,798 INFO L158 Benchmark]: TraceAbstraction took 10205.91ms. Allocated memory was 113.2MB in the beginning and 136.3MB in the end (delta: 23.1MB). Free memory was 59.7MB in the beginning and 108.9MB in the end (delta: -49.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:44:33,799 INFO L158 Benchmark]: Witness Printer took 2.06ms. Allocated memory is still 136.3MB. Free memory was 108.9MB in the beginning and 107.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 03:44:33,800 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 77.6MB. Free memory is still 54.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 650.28ms. Allocated memory was 77.6MB in the beginning and 113.2MB in the end (delta: 35.7MB). Free memory was 49.3MB in the beginning and 82.3MB in the end (delta: -32.9MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.03ms. Allocated memory is still 113.2MB. Free memory was 82.3MB in the beginning and 79.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.13ms. Allocated memory is still 113.2MB. Free memory was 79.7MB in the beginning and 77.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 438.30ms. Allocated memory is still 113.2MB. Free memory was 77.6MB in the beginning and 60.8MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 10205.91ms. Allocated memory was 113.2MB in the beginning and 136.3MB in the end (delta: 23.1MB). Free memory was 59.7MB in the beginning and 108.9MB in the end (delta: -49.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.06ms. Allocated memory is still 136.3MB. Free memory was 108.9MB in the beginning and 107.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.8s, 75 PlacesBefore, 28 PlacesAfterwards, 71 TransitionsBefore, 24 TransitionsAfterwards, 988 CoEnabledTransitionPairs, 5 FixpointIterations, 34 TrivialSequentialCompositions, 54 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 88 TotalNumberOfCompositions, 2011 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1233, independent: 1133, independent conditional: 0, independent unconditional: 1133, dependent: 100, dependent conditional: 0, dependent unconditional: 100, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 575, independent: 552, independent conditional: 0, independent unconditional: 552, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1233, independent: 581, independent conditional: 0, independent unconditional: 581, dependent: 77, dependent conditional: 0, dependent unconditional: 77, unknown: 575, unknown conditional: 0, unknown unconditional: 575] , Statistics on independence cache: Total cache size (in pairs): 41, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - UnprovableResult [Line: 1242]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 1242. Possible FailurePath: [L1223-L1227] 0 struct s { int datum; pthread_mutex_t mutex; int list; } *A; [L1243] 0 pthread_t t1; [L1244] 0 A = malloc(sizeof(struct s)) [L1245] CALL 0 init(A,666) [L1229] 0 p->datum = x [L1245] RET 0 init(A,666) [L1246] FCALL, FORK 0 pthread_create(&t1, ((void *)0), t_fun, ((void *)0)) VAL [A={1:0}, pthread_create(&t1, ((void *)0), t_fun, ((void *)0))=-1, t1={65543:0}] [L1247] CALL 0 update(&A->list) [L1233] 0 struct s *s = ((struct s *)((char *)(p)-(unsigned long)(&((struct s *)0)->list))); [L1235] EXPR 0 s->datum VAL [A={1:0}, p={1:28}, p={1:28}, s->datum=666, s={1:0}] [L1235] 0 s->datum++ [L1247] RET 0 update(&A->list) [L1248] 0 return 0; [L1248] 0 return 0; - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1246]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 94 locations, 18 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 10.0s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 245 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 116 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 230 IncrementalHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 26 mSDtfsCounter, 230 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=85occurred in iteration=4, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 53 SizeOfPredicates, 6 NumberOfNonLiveVariables, 194 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-08-30 03:44:33,839 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: UNKNOWN: Overapproximated counterexample