./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-memsafety/fillarray1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 7e1ff0e6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-memsafety/fillarray1.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 0d955c319d131d508b8618ef571ba23da865842e29989ccda626762130a6dda2 --- Real Ultimate output --- This is Ultimate 0.2.2-?-7e1ff0e [2023-02-15 01:44:04,949 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 01:44:04,951 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 01:44:04,975 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 01:44:04,975 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 01:44:04,976 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 01:44:04,977 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 01:44:04,978 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 01:44:04,979 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 01:44:04,980 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 01:44:04,980 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 01:44:04,981 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 01:44:04,984 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 01:44:04,986 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 01:44:04,988 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 01:44:04,989 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 01:44:04,990 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 01:44:04,991 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 01:44:04,996 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 01:44:04,997 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 01:44:04,998 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 01:44:04,999 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 01:44:05,000 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 01:44:05,000 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 01:44:05,003 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 01:44:05,006 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 01:44:05,006 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 01:44:05,007 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 01:44:05,007 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 01:44:05,008 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 01:44:05,008 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 01:44:05,009 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 01:44:05,009 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 01:44:05,010 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 01:44:05,011 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 01:44:05,011 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 01:44:05,011 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 01:44:05,012 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 01:44:05,012 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 01:44:05,013 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 01:44:05,014 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 01:44:05,015 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-02-15 01:44:05,035 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 01:44:05,036 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 01:44:05,036 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 01:44:05,036 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 01:44:05,044 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 01:44:05,044 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 01:44:05,045 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 01:44:05,045 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 01:44:05,045 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 01:44:05,045 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 01:44:05,046 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-15 01:44:05,046 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-15 01:44:05,046 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 01:44:05,046 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-15 01:44:05,046 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 01:44:05,047 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-02-15 01:44:05,047 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-02-15 01:44:05,047 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-02-15 01:44:05,047 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 01:44:05,047 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-02-15 01:44:05,047 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-15 01:44:05,047 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 01:44:05,048 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 01:44:05,048 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 01:44:05,048 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 01:44:05,048 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 01:44:05,048 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 01:44:05,048 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 01:44:05,048 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 01:44:05,049 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 01:44:05,049 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 01:44:05,049 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 01:44:05,049 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 01:44:05,049 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 01:44:05,049 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d955c319d131d508b8618ef571ba23da865842e29989ccda626762130a6dda2 [2023-02-15 01:44:05,236 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 01:44:05,259 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 01:44:05,261 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 01:44:05,262 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 01:44:05,262 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 01:44:05,263 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-memsafety/fillarray1.i [2023-02-15 01:44:06,254 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 01:44:06,458 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 01:44:06,459 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-memsafety/fillarray1.i [2023-02-15 01:44:06,475 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc71aa846/030539f5284645ae9071ed778d7611c9/FLAG093e9e19a [2023-02-15 01:44:06,489 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc71aa846/030539f5284645ae9071ed778d7611c9 [2023-02-15 01:44:06,491 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 01:44:06,493 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 01:44:06,494 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 01:44:06,494 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 01:44:06,496 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 01:44:06,496 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 01:44:06" (1/1) ... [2023-02-15 01:44:06,498 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7652ae97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:44:06, skipping insertion in model container [2023-02-15 01:44:06,498 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 01:44:06" (1/1) ... [2023-02-15 01:44:06,503 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 01:44:06,539 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 01:44:06,844 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 01:44:06,850 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2023-02-15 01:44:06,851 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3bf414e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:44:06, skipping insertion in model container [2023-02-15 01:44:06,851 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 01:44:06,851 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-02-15 01:44:06,852 INFO L158 Benchmark]: Toolchain (without parser) took 359.08ms. Allocated memory is still 119.5MB. Free memory was 75.0MB in the beginning and 61.3MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-02-15 01:44:06,853 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 119.5MB. Free memory is still 91.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 01:44:06,853 INFO L158 Benchmark]: CACSL2BoogieTranslator took 357.64ms. Allocated memory is still 119.5MB. Free memory was 74.6MB in the beginning and 61.3MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-02-15 01:44:06,854 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 119.5MB. Free memory is still 91.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 357.64ms. Allocated memory is still 119.5MB. Free memory was 74.6MB in the beginning and 61.3MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1044]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-memsafety/fillarray1.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 0d955c319d131d508b8618ef571ba23da865842e29989ccda626762130a6dda2 --- Real Ultimate output --- This is Ultimate 0.2.2-?-7e1ff0e [2023-02-15 01:44:08,363 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 01:44:08,365 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 01:44:08,401 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 01:44:08,403 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 01:44:08,405 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 01:44:08,406 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 01:44:08,408 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 01:44:08,412 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 01:44:08,415 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 01:44:08,416 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 01:44:08,418 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 01:44:08,418 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 01:44:08,420 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 01:44:08,421 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 01:44:08,423 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 01:44:08,423 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 01:44:08,424 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 01:44:08,425 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 01:44:08,429 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 01:44:08,430 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 01:44:08,431 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 01:44:08,431 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 01:44:08,432 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 01:44:08,437 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 01:44:08,437 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 01:44:08,437 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 01:44:08,438 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 01:44:08,439 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 01:44:08,439 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 01:44:08,440 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 01:44:08,443 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 01:44:08,444 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 01:44:08,445 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 01:44:08,446 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 01:44:08,446 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 01:44:08,446 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 01:44:08,446 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 01:44:08,447 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 01:44:08,447 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 01:44:08,448 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 01:44:08,448 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-02-15 01:44:08,471 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 01:44:08,472 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 01:44:08,473 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 01:44:08,473 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 01:44:08,473 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 01:44:08,474 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 01:44:08,474 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 01:44:08,474 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 01:44:08,474 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 01:44:08,474 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 01:44:08,475 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-15 01:44:08,475 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-15 01:44:08,475 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 01:44:08,475 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-15 01:44:08,476 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 01:44:08,476 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-02-15 01:44:08,476 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-02-15 01:44:08,476 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-02-15 01:44:08,476 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 01:44:08,476 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-02-15 01:44:08,476 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2023-02-15 01:44:08,477 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-02-15 01:44:08,477 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-15 01:44:08,477 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 01:44:08,477 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 01:44:08,477 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 01:44:08,477 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 01:44:08,478 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 01:44:08,478 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 01:44:08,478 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 01:44:08,478 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2023-02-15 01:44:08,478 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-02-15 01:44:08,478 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 01:44:08,479 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 01:44:08,479 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 01:44:08,479 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2023-02-15 01:44:08,479 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 01:44:08,479 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d955c319d131d508b8618ef571ba23da865842e29989ccda626762130a6dda2 [2023-02-15 01:44:08,727 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 01:44:08,747 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 01:44:08,748 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 01:44:08,749 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 01:44:08,749 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 01:44:08,750 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-memsafety/fillarray1.i [2023-02-15 01:44:09,742 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 01:44:09,978 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 01:44:09,979 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-memsafety/fillarray1.i [2023-02-15 01:44:09,991 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a404fd2a5/680a13bbbf184d1e84b1c2925214f907/FLAG5fedd4f3c [2023-02-15 01:44:10,000 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a404fd2a5/680a13bbbf184d1e84b1c2925214f907 [2023-02-15 01:44:10,003 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 01:44:10,004 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 01:44:10,006 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 01:44:10,006 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 01:44:10,008 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 01:44:10,009 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 01:44:10" (1/1) ... [2023-02-15 01:44:10,010 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e182665 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:44:10, skipping insertion in model container [2023-02-15 01:44:10,010 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 01:44:10" (1/1) ... [2023-02-15 01:44:10,015 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 01:44:10,064 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 01:44:10,394 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 01:44:10,401 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-02-15 01:44:10,419 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 01:44:10,442 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 01:44:10,445 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 01:44:10,475 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 01:44:10,566 INFO L208 MainTranslator]: Completed translation [2023-02-15 01:44:10,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:44:10 WrapperNode [2023-02-15 01:44:10,566 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 01:44:10,567 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 01:44:10,567 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 01:44:10,567 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 01:44:10,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:44:10" (1/1) ... [2023-02-15 01:44:10,584 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:44:10" (1/1) ... [2023-02-15 01:44:10,596 INFO L138 Inliner]: procedures = 263, calls = 16, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 52 [2023-02-15 01:44:10,596 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 01:44:10,597 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 01:44:10,597 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 01:44:10,597 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 01:44:10,602 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:44:10" (1/1) ... [2023-02-15 01:44:10,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:44:10" (1/1) ... [2023-02-15 01:44:10,604 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:44:10" (1/1) ... [2023-02-15 01:44:10,605 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:44:10" (1/1) ... [2023-02-15 01:44:10,610 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:44:10" (1/1) ... [2023-02-15 01:44:10,612 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:44:10" (1/1) ... [2023-02-15 01:44:10,613 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:44:10" (1/1) ... [2023-02-15 01:44:10,614 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:44:10" (1/1) ... [2023-02-15 01:44:10,616 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 01:44:10,616 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 01:44:10,616 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 01:44:10,617 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 01:44:10,617 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:44:10" (1/1) ... [2023-02-15 01:44:10,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 01:44:10,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 01:44:10,647 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-02-15 01:44:10,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-02-15 01:44:10,677 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2023-02-15 01:44:10,677 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2023-02-15 01:44:10,677 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2023-02-15 01:44:10,680 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2023-02-15 01:44:10,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-02-15 01:44:10,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-02-15 01:44:10,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-02-15 01:44:10,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-02-15 01:44:10,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 01:44:10,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 01:44:10,682 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2023-02-15 01:44:10,788 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 01:44:10,789 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 01:44:11,043 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 01:44:11,048 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 01:44:11,054 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2023-02-15 01:44:11,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 01:44:11 BoogieIcfgContainer [2023-02-15 01:44:11,056 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 01:44:11,059 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 01:44:11,059 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 01:44:11,061 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 01:44:11,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 01:44:10" (1/3) ... [2023-02-15 01:44:11,062 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73a9f5a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 01:44:11, skipping insertion in model container [2023-02-15 01:44:11,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:44:10" (2/3) ... [2023-02-15 01:44:11,062 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73a9f5a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 01:44:11, skipping insertion in model container [2023-02-15 01:44:11,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 01:44:11" (3/3) ... [2023-02-15 01:44:11,063 INFO L112 eAbstractionObserver]: Analyzing ICFG fillarray1.i [2023-02-15 01:44:11,075 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 01:44:11,076 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2023-02-15 01:44:11,076 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-02-15 01:44:11,142 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-02-15 01:44:11,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 105 transitions, 220 flow [2023-02-15 01:44:11,211 INFO L130 PetriNetUnfolder]: 8/109 cut-off events. [2023-02-15 01:44:11,212 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-02-15 01:44:11,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116 conditions, 109 events. 8/109 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 151 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 71. Up to 3 conditions per place. [2023-02-15 01:44:11,228 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 105 transitions, 220 flow [2023-02-15 01:44:11,232 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 101 places, 103 transitions, 212 flow [2023-02-15 01:44:11,234 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-02-15 01:44:11,242 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 101 places, 103 transitions, 212 flow [2023-02-15 01:44:11,245 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 101 places, 103 transitions, 212 flow [2023-02-15 01:44:11,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 101 places, 103 transitions, 212 flow [2023-02-15 01:44:11,262 INFO L130 PetriNetUnfolder]: 8/109 cut-off events. [2023-02-15 01:44:11,262 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-02-15 01:44:11,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116 conditions, 109 events. 8/109 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 151 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 71. Up to 3 conditions per place. [2023-02-15 01:44:11,264 INFO L119 LiptonReduction]: Number of co-enabled transitions 2546 [2023-02-15 01:44:17,736 INFO L134 LiptonReduction]: Checked pairs total: 7730 [2023-02-15 01:44:17,736 INFO L136 LiptonReduction]: Total number of compositions: 85 [2023-02-15 01:44:17,746 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 01:44:17,750 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;@41b618e0, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 01:44:17,750 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2023-02-15 01:44:17,752 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2023-02-15 01:44:17,752 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-02-15 01:44:17,752 INFO L201 CegarLoopForPetriNet]: Found error trace [2023-02-15 01:44:17,752 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2023-02-15 01:44:17,753 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2023-02-15 01:44:17,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:44:17,756 INFO L85 PathProgramCache]: Analyzing trace with hash 400, now seen corresponding path program 1 times [2023-02-15 01:44:17,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-15 01:44:17,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [786705143] [2023-02-15 01:44:17,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:44:17,764 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-15 01:44:17,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-15 01:44:17,767 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-15 01:44:17,783 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-02-15 01:44:17,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:44:17,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2023-02-15 01:44:17,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 01:44:17,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:44:17,830 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 01:44:17,831 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-15 01:44:17,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [786705143] [2023-02-15 01:44:17,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [786705143] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 01:44:17,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 01:44:17,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-02-15 01:44:17,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117194781] [2023-02-15 01:44:17,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 01:44:17,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-15 01:44:17,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-15 01:44:17,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-15 01:44:17,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-15 01:44:17,851 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 190 [2023-02-15 01:44:17,853 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 43 transitions, 92 flow. Second operand has 2 states, 2 states have (on average 99.5) internal successors, (199), 2 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:44:17,853 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-02-15 01:44:17,853 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 190 [2023-02-15 01:44:17,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-02-15 01:44:18,069 INFO L130 PetriNetUnfolder]: 569/1096 cut-off events. [2023-02-15 01:44:18,069 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2023-02-15 01:44:18,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1953 conditions, 1096 events. 569/1096 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 6245 event pairs, 476 based on Foata normal form. 95/890 useless extension candidates. Maximal degree in co-relation 1938. Up to 840 conditions per place. [2023-02-15 01:44:18,078 INFO L137 encePairwiseOnDemand]: 186/190 looper letters, 25 selfloop transitions, 0 changer transitions 0/39 dead transitions. [2023-02-15 01:44:18,078 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 39 transitions, 134 flow [2023-02-15 01:44:18,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-15 01:44:18,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-02-15 01:44:18,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 227 transitions. [2023-02-15 01:44:18,088 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5973684210526315 [2023-02-15 01:44:18,088 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 227 transitions. [2023-02-15 01:44:18,089 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 227 transitions. [2023-02-15 01:44:18,090 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-15 01:44:18,097 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 227 transitions. [2023-02-15 01:44:18,099 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 113.5) internal successors, (227), 2 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:44:18,103 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 190.0) internal successors, (570), 3 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:44:18,107 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 190.0) internal successors, (570), 3 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:44:18,108 INFO L175 Difference]: Start difference. First operand has 43 places, 43 transitions, 92 flow. Second operand 2 states and 227 transitions. [2023-02-15 01:44:18,109 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 39 transitions, 134 flow [2023-02-15 01:44:18,110 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 39 transitions, 132 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-02-15 01:44:18,112 INFO L231 Difference]: Finished difference. Result has 40 places, 39 transitions, 82 flow [2023-02-15 01:44:18,113 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=82, PETRI_PLACES=40, PETRI_TRANSITIONS=39} [2023-02-15 01:44:18,117 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, -3 predicate places. [2023-02-15 01:44:18,117 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 39 transitions, 82 flow [2023-02-15 01:44:18,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 99.5) internal successors, (199), 2 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:44:18,118 INFO L201 CegarLoopForPetriNet]: Found error trace [2023-02-15 01:44:18,118 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-02-15 01:44:18,129 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-02-15 01:44:18,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-15 01:44:18,327 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2023-02-15 01:44:18,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:44:18,327 INFO L85 PathProgramCache]: Analyzing trace with hash 12526, now seen corresponding path program 1 times [2023-02-15 01:44:18,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-15 01:44:18,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1878566354] [2023-02-15 01:44:18,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:44:18,330 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-15 01:44:18,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-15 01:44:18,333 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-15 01:44:18,336 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-02-15 01:44:18,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:44:18,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-15 01:44:18,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 01:44:18,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:44:18,386 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 01:44:18,386 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-15 01:44:18,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1878566354] [2023-02-15 01:44:18,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1878566354] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 01:44:18,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 01:44:18,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-02-15 01:44:18,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522616369] [2023-02-15 01:44:18,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 01:44:18,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 01:44:18,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-15 01:44:18,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 01:44:18,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 01:44:18,433 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 190 [2023-02-15 01:44:18,434 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 39 transitions, 82 flow. Second operand has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:44:18,434 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-02-15 01:44:18,434 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 190 [2023-02-15 01:44:18,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-02-15 01:44:18,589 INFO L130 PetriNetUnfolder]: 717/1315 cut-off events. [2023-02-15 01:44:18,589 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-02-15 01:44:18,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2409 conditions, 1315 events. 717/1315 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 7454 event pairs, 547 based on Foata normal form. 0/941 useless extension candidates. Maximal degree in co-relation 2406. Up to 957 conditions per place. [2023-02-15 01:44:18,599 INFO L137 encePairwiseOnDemand]: 187/190 looper letters, 37 selfloop transitions, 1 changer transitions 2/52 dead transitions. [2023-02-15 01:44:18,599 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 52 transitions, 188 flow [2023-02-15 01:44:18,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 01:44:18,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-02-15 01:44:18,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 308 transitions. [2023-02-15 01:44:18,605 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5403508771929825 [2023-02-15 01:44:18,605 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 308 transitions. [2023-02-15 01:44:18,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 308 transitions. [2023-02-15 01:44:18,607 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-15 01:44:18,607 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 308 transitions. [2023-02-15 01:44:18,609 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:44:18,611 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:44:18,611 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:44:18,611 INFO L175 Difference]: Start difference. First operand has 40 places, 39 transitions, 82 flow. Second operand 3 states and 308 transitions. [2023-02-15 01:44:18,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 52 transitions, 188 flow [2023-02-15 01:44:18,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 52 transitions, 188 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-02-15 01:44:18,613 INFO L231 Difference]: Finished difference. Result has 43 places, 38 transitions, 85 flow [2023-02-15 01:44:18,613 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=85, PETRI_PLACES=43, PETRI_TRANSITIONS=38} [2023-02-15 01:44:18,613 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, 0 predicate places. [2023-02-15 01:44:18,614 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 38 transitions, 85 flow [2023-02-15 01:44:18,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:44:18,614 INFO L201 CegarLoopForPetriNet]: Found error trace [2023-02-15 01:44:18,614 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-02-15 01:44:18,623 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 [2023-02-15 01:44:18,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-15 01:44:18,823 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2023-02-15 01:44:18,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:44:18,823 INFO L85 PathProgramCache]: Analyzing trace with hash 394584, now seen corresponding path program 1 times [2023-02-15 01:44:18,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-15 01:44:18,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1142026124] [2023-02-15 01:44:18,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:44:18,824 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-15 01:44:18,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-15 01:44:18,825 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-15 01:44:18,828 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-02-15 01:44:18,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:44:18,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-15 01:44:18,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 01:44:18,956 INFO L321 Elim1Store]: treesize reduction 39, result has 40.0 percent of original size [2023-02-15 01:44:18,957 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 2 case distinctions, treesize of input 12 treesize of output 33 [2023-02-15 01:44:18,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:44:18,975 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 01:44:18,975 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-15 01:44:18,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1142026124] [2023-02-15 01:44:18,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1142026124] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 01:44:18,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 01:44:18,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-02-15 01:44:18,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346951174] [2023-02-15 01:44:18,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 01:44:18,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 01:44:18,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-15 01:44:18,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 01:44:18,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 01:44:19,024 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 190 [2023-02-15 01:44:19,024 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 38 transitions, 85 flow. Second operand has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:44:19,024 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-02-15 01:44:19,024 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 190 [2023-02-15 01:44:19,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-02-15 01:44:19,124 INFO L130 PetriNetUnfolder]: 621/1134 cut-off events. [2023-02-15 01:44:19,124 INFO L131 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2023-02-15 01:44:19,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2182 conditions, 1134 events. 621/1134 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 6510 event pairs, 258 based on Foata normal form. 0/844 useless extension candidates. Maximal degree in co-relation 2177. Up to 477 conditions per place. [2023-02-15 01:44:19,130 INFO L137 encePairwiseOnDemand]: 187/190 looper letters, 34 selfloop transitions, 2 changer transitions 0/49 dead transitions. [2023-02-15 01:44:19,130 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 49 transitions, 179 flow [2023-02-15 01:44:19,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 01:44:19,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-02-15 01:44:19,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 310 transitions. [2023-02-15 01:44:19,132 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.543859649122807 [2023-02-15 01:44:19,132 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 310 transitions. [2023-02-15 01:44:19,132 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 310 transitions. [2023-02-15 01:44:19,132 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-15 01:44:19,133 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 310 transitions. [2023-02-15 01:44:19,133 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:44:19,135 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:44:19,135 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:44:19,136 INFO L175 Difference]: Start difference. First operand has 43 places, 38 transitions, 85 flow. Second operand 3 states and 310 transitions. [2023-02-15 01:44:19,136 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 49 transitions, 179 flow [2023-02-15 01:44:19,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 49 transitions, 175 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-02-15 01:44:19,140 INFO L231 Difference]: Finished difference. Result has 42 places, 37 transitions, 83 flow [2023-02-15 01:44:19,141 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=83, PETRI_PLACES=42, PETRI_TRANSITIONS=37} [2023-02-15 01:44:19,141 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, -1 predicate places. [2023-02-15 01:44:19,142 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 37 transitions, 83 flow [2023-02-15 01:44:19,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:44:19,142 INFO L201 CegarLoopForPetriNet]: Found error trace [2023-02-15 01:44:19,143 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-02-15 01:44:19,161 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 (4)] Forceful destruction successful, exit code 0 [2023-02-15 01:44:19,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-15 01:44:19,349 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2023-02-15 01:44:19,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:44:19,350 INFO L85 PathProgramCache]: Analyzing trace with hash 394583, now seen corresponding path program 1 times [2023-02-15 01:44:19,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-15 01:44:19,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1509359578] [2023-02-15 01:44:19,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:44:19,350 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-15 01:44:19,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-15 01:44:19,353 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-15 01:44:19,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-02-15 01:44:19,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:44:19,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-15 01:44:19,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 01:44:19,446 INFO L321 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2023-02-15 01:44:19,447 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 2 case distinctions, treesize of input 12 treesize of output 27 [2023-02-15 01:44:19,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:44:19,472 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 01:44:19,472 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-15 01:44:19,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1509359578] [2023-02-15 01:44:19,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1509359578] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 01:44:19,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 01:44:19,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-02-15 01:44:19,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218491855] [2023-02-15 01:44:19,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 01:44:19,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 01:44:19,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-15 01:44:19,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 01:44:19,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 01:44:19,514 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 190 [2023-02-15 01:44:19,515 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 37 transitions, 83 flow. Second operand has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:44:19,515 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-02-15 01:44:19,515 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 190 [2023-02-15 01:44:19,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-02-15 01:44:19,615 INFO L130 PetriNetUnfolder]: 543/1039 cut-off events. [2023-02-15 01:44:19,615 INFO L131 PetriNetUnfolder]: For 39/39 co-relation queries the response was YES. [2023-02-15 01:44:19,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1957 conditions, 1039 events. 543/1039 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 5949 event pairs, 324 based on Foata normal form. 0/805 useless extension candidates. Maximal degree in co-relation 1953. Up to 577 conditions per place. [2023-02-15 01:44:19,620 INFO L137 encePairwiseOnDemand]: 187/190 looper letters, 32 selfloop transitions, 2 changer transitions 0/48 dead transitions. [2023-02-15 01:44:19,620 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 48 transitions, 173 flow [2023-02-15 01:44:19,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 01:44:19,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-02-15 01:44:19,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 317 transitions. [2023-02-15 01:44:19,622 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5561403508771929 [2023-02-15 01:44:19,622 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 317 transitions. [2023-02-15 01:44:19,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 317 transitions. [2023-02-15 01:44:19,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-15 01:44:19,622 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 317 transitions. [2023-02-15 01:44:19,623 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:44:19,624 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:44:19,624 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:44:19,624 INFO L175 Difference]: Start difference. First operand has 42 places, 37 transitions, 83 flow. Second operand 3 states and 317 transitions. [2023-02-15 01:44:19,624 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 48 transitions, 173 flow [2023-02-15 01:44:19,625 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 48 transitions, 169 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-02-15 01:44:19,626 INFO L231 Difference]: Finished difference. Result has 41 places, 36 transitions, 81 flow [2023-02-15 01:44:19,626 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=81, PETRI_PLACES=41, PETRI_TRANSITIONS=36} [2023-02-15 01:44:19,628 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, -2 predicate places. [2023-02-15 01:44:19,628 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 36 transitions, 81 flow [2023-02-15 01:44:19,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:44:19,629 INFO L201 CegarLoopForPetriNet]: Found error trace [2023-02-15 01:44:19,629 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-02-15 01:44:19,635 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 (5)] Ended with exit code 0 [2023-02-15 01:44:19,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-15 01:44:19,836 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2023-02-15 01:44:19,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:44:19,836 INFO L85 PathProgramCache]: Analyzing trace with hash 379205335, now seen corresponding path program 1 times [2023-02-15 01:44:19,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-15 01:44:19,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [89687618] [2023-02-15 01:44:19,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:44:19,837 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-15 01:44:19,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-15 01:44:19,838 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-15 01:44:19,840 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-02-15 01:44:19,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:44:19,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-15 01:44:19,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 01:44:19,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:44:19,895 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 01:44:19,895 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-15 01:44:19,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [89687618] [2023-02-15 01:44:19,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [89687618] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 01:44:19,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 01:44:19,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-02-15 01:44:19,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739560906] [2023-02-15 01:44:19,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 01:44:19,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 01:44:19,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-15 01:44:19,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 01:44:19,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 01:44:19,903 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 190 [2023-02-15 01:44:19,903 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 36 transitions, 81 flow. Second operand has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:44:19,903 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-02-15 01:44:19,903 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 190 [2023-02-15 01:44:19,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-02-15 01:44:19,977 INFO L130 PetriNetUnfolder]: 466/878 cut-off events. [2023-02-15 01:44:19,977 INFO L131 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2023-02-15 01:44:19,978 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1677 conditions, 878 events. 466/878 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 4769 event pairs, 395 based on Foata normal form. 0/653 useless extension candidates. Maximal degree in co-relation 1673. Up to 696 conditions per place. [2023-02-15 01:44:19,981 INFO L137 encePairwiseOnDemand]: 188/190 looper letters, 20 selfloop transitions, 1 changer transitions 0/35 dead transitions. [2023-02-15 01:44:19,981 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 35 transitions, 121 flow [2023-02-15 01:44:19,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 01:44:19,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-02-15 01:44:19,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 307 transitions. [2023-02-15 01:44:19,984 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5385964912280702 [2023-02-15 01:44:19,985 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 307 transitions. [2023-02-15 01:44:19,985 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 307 transitions. [2023-02-15 01:44:19,985 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-15 01:44:19,985 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 307 transitions. [2023-02-15 01:44:19,985 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:44:19,986 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:44:19,987 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:44:19,987 INFO L175 Difference]: Start difference. First operand has 41 places, 36 transitions, 81 flow. Second operand 3 states and 307 transitions. [2023-02-15 01:44:19,987 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 35 transitions, 121 flow [2023-02-15 01:44:19,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 35 transitions, 117 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-02-15 01:44:19,988 INFO L231 Difference]: Finished difference. Result has 40 places, 35 transitions, 77 flow [2023-02-15 01:44:19,988 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=77, PETRI_PLACES=40, PETRI_TRANSITIONS=35} [2023-02-15 01:44:19,989 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, -3 predicate places. [2023-02-15 01:44:19,989 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 35 transitions, 77 flow [2023-02-15 01:44:19,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:44:19,990 INFO L201 CegarLoopForPetriNet]: Found error trace [2023-02-15 01:44:19,990 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-02-15 01:44:20,000 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 [2023-02-15 01:44:20,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-15 01:44:20,197 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2023-02-15 01:44:20,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:44:20,197 INFO L85 PathProgramCache]: Analyzing trace with hash 379205342, now seen corresponding path program 1 times [2023-02-15 01:44:20,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-15 01:44:20,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1867624509] [2023-02-15 01:44:20,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:44:20,197 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-15 01:44:20,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-15 01:44:20,198 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-15 01:44:20,199 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-02-15 01:44:20,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:44:20,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-15 01:44:20,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 01:44:20,291 INFO L321 Elim1Store]: treesize reduction 46, result has 29.2 percent of original size [2023-02-15 01:44:20,291 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 33 [2023-02-15 01:44:20,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:44:20,313 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 01:44:20,314 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-15 01:44:20,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1867624509] [2023-02-15 01:44:20,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1867624509] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 01:44:20,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 01:44:20,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-02-15 01:44:20,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111709917] [2023-02-15 01:44:20,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 01:44:20,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 01:44:20,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-15 01:44:20,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 01:44:20,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 01:44:20,363 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 190 [2023-02-15 01:44:20,363 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 35 transitions, 77 flow. Second operand has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:44:20,363 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-02-15 01:44:20,363 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 190 [2023-02-15 01:44:20,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-02-15 01:44:20,447 INFO L130 PetriNetUnfolder]: 448/812 cut-off events. [2023-02-15 01:44:20,447 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-02-15 01:44:20,448 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1569 conditions, 812 events. 448/812 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 4311 event pairs, 165 based on Foata normal form. 0/657 useless extension candidates. Maximal degree in co-relation 1565. Up to 477 conditions per place. [2023-02-15 01:44:20,450 INFO L137 encePairwiseOnDemand]: 187/190 looper letters, 31 selfloop transitions, 2 changer transitions 0/46 dead transitions. [2023-02-15 01:44:20,450 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 46 transitions, 165 flow [2023-02-15 01:44:20,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 01:44:20,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-02-15 01:44:20,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 313 transitions. [2023-02-15 01:44:20,452 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5491228070175439 [2023-02-15 01:44:20,452 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 313 transitions. [2023-02-15 01:44:20,452 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 313 transitions. [2023-02-15 01:44:20,453 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-15 01:44:20,453 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 313 transitions. [2023-02-15 01:44:20,453 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:44:20,454 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:44:20,455 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:44:20,455 INFO L175 Difference]: Start difference. First operand has 40 places, 35 transitions, 77 flow. Second operand 3 states and 313 transitions. [2023-02-15 01:44:20,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 46 transitions, 165 flow [2023-02-15 01:44:20,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 46 transitions, 164 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-02-15 01:44:20,456 INFO L231 Difference]: Finished difference. Result has 40 places, 34 transitions, 78 flow [2023-02-15 01:44:20,456 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=40, PETRI_TRANSITIONS=34} [2023-02-15 01:44:20,456 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, -3 predicate places. [2023-02-15 01:44:20,456 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 34 transitions, 78 flow [2023-02-15 01:44:20,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:44:20,457 INFO L201 CegarLoopForPetriNet]: Found error trace [2023-02-15 01:44:20,457 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-02-15 01:44:20,464 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-02-15 01:44:20,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-15 01:44:20,664 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2023-02-15 01:44:20,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:44:20,665 INFO L85 PathProgramCache]: Analyzing trace with hash 379205336, now seen corresponding path program 1 times [2023-02-15 01:44:20,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-15 01:44:20,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [170669604] [2023-02-15 01:44:20,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:44:20,665 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-15 01:44:20,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-15 01:44:20,666 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-15 01:44:20,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-02-15 01:44:20,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:44:20,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-15 01:44:20,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 01:44:20,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:44:20,736 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 01:44:20,736 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-15 01:44:20,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [170669604] [2023-02-15 01:44:20,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [170669604] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 01:44:20,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 01:44:20,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-02-15 01:44:20,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903978636] [2023-02-15 01:44:20,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 01:44:20,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 01:44:20,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-15 01:44:20,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 01:44:20,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 01:44:20,755 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 190 [2023-02-15 01:44:20,756 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 34 transitions, 78 flow. Second operand has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:44:20,756 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-02-15 01:44:20,756 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 190 [2023-02-15 01:44:20,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-02-15 01:44:20,832 INFO L130 PetriNetUnfolder]: 300/580 cut-off events. [2023-02-15 01:44:20,832 INFO L131 PetriNetUnfolder]: For 39/39 co-relation queries the response was YES. [2023-02-15 01:44:20,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1142 conditions, 580 events. 300/580 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2939 event pairs, 253 based on Foata normal form. 42/523 useless extension candidates. Maximal degree in co-relation 1138. Up to 458 conditions per place. [2023-02-15 01:44:20,834 INFO L137 encePairwiseOnDemand]: 188/190 looper letters, 18 selfloop transitions, 1 changer transitions 0/33 dead transitions. [2023-02-15 01:44:20,834 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 33 transitions, 114 flow [2023-02-15 01:44:20,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 01:44:20,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-02-15 01:44:20,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 305 transitions. [2023-02-15 01:44:20,835 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5350877192982456 [2023-02-15 01:44:20,835 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 305 transitions. [2023-02-15 01:44:20,835 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 305 transitions. [2023-02-15 01:44:20,835 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-15 01:44:20,835 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 305 transitions. [2023-02-15 01:44:20,836 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:44:20,837 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:44:20,837 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:44:20,837 INFO L175 Difference]: Start difference. First operand has 40 places, 34 transitions, 78 flow. Second operand 3 states and 305 transitions. [2023-02-15 01:44:20,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 33 transitions, 114 flow [2023-02-15 01:44:20,837 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 33 transitions, 110 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-02-15 01:44:20,838 INFO L231 Difference]: Finished difference. Result has 39 places, 33 transitions, 74 flow [2023-02-15 01:44:20,838 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=39, PETRI_TRANSITIONS=33} [2023-02-15 01:44:20,838 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, -4 predicate places. [2023-02-15 01:44:20,838 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 33 transitions, 74 flow [2023-02-15 01:44:20,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:44:20,838 INFO L201 CegarLoopForPetriNet]: Found error trace [2023-02-15 01:44:20,838 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 01:44:20,849 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-02-15 01:44:21,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-15 01:44:21,052 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2023-02-15 01:44:21,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:44:21,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1142827360, now seen corresponding path program 1 times [2023-02-15 01:44:21,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-15 01:44:21,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [838367276] [2023-02-15 01:44:21,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:44:21,053 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 [2023-02-15 01:44:21,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-15 01:44:21,054 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-15 01:44:21,055 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-02-15 01:44:21,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:44:21,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 17 conjunts are in the unsatisfiable core [2023-02-15 01:44:21,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 01:44:21,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:44:21,289 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 01:44:21,290 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-15 01:44:21,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [838367276] [2023-02-15 01:44:21,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [838367276] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 01:44:21,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 01:44:21,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 01:44:21,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314045677] [2023-02-15 01:44:21,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 01:44:21,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-15 01:44:21,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-15 01:44:21,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-15 01:44:21,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-02-15 01:44:23,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-02-15 01:44:25,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-02-15 01:44:27,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-02-15 01:44:29,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-02-15 01:44:31,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-02-15 01:44:33,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-02-15 01:44:35,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-02-15 01:44:37,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-02-15 01:44:39,020 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 190 [2023-02-15 01:44:39,020 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 33 transitions, 74 flow. Second operand has 6 states, 6 states have (on average 76.33333333333333) internal successors, (458), 6 states have internal predecessors, (458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:44:39,020 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-02-15 01:44:39,020 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 190 [2023-02-15 01:44:39,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-02-15 01:44:41,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-02-15 01:44:43,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-02-15 01:44:45,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-02-15 01:44:48,765 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-02-15 01:44:49,136 INFO L130 PetriNetUnfolder]: 399/661 cut-off events. [2023-02-15 01:44:49,137 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-02-15 01:44:49,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1337 conditions, 661 events. 399/661 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 3107 event pairs, 52 based on Foata normal form. 0/585 useless extension candidates. Maximal degree in co-relation 1333. Up to 252 conditions per place. [2023-02-15 01:44:49,140 INFO L137 encePairwiseOnDemand]: 185/190 looper letters, 56 selfloop transitions, 4 changer transitions 0/71 dead transitions. [2023-02-15 01:44:49,140 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 71 transitions, 270 flow [2023-02-15 01:44:49,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 01:44:49,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-02-15 01:44:49,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 511 transitions. [2023-02-15 01:44:49,143 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4482456140350877 [2023-02-15 01:44:49,143 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 511 transitions. [2023-02-15 01:44:49,143 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 511 transitions. [2023-02-15 01:44:49,144 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-15 01:44:49,144 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 511 transitions. [2023-02-15 01:44:49,145 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 85.16666666666667) internal successors, (511), 6 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:44:49,147 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 190.0) internal successors, (1330), 7 states have internal predecessors, (1330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:44:49,147 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 190.0) internal successors, (1330), 7 states have internal predecessors, (1330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:44:49,147 INFO L175 Difference]: Start difference. First operand has 39 places, 33 transitions, 74 flow. Second operand 6 states and 511 transitions. [2023-02-15 01:44:49,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 71 transitions, 270 flow [2023-02-15 01:44:49,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 71 transitions, 269 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-02-15 01:44:49,150 INFO L231 Difference]: Finished difference. Result has 42 places, 32 transitions, 79 flow [2023-02-15 01:44:49,150 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=71, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=79, PETRI_PLACES=42, PETRI_TRANSITIONS=32} [2023-02-15 01:44:49,151 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, -1 predicate places. [2023-02-15 01:44:49,152 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 32 transitions, 79 flow [2023-02-15 01:44:49,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 76.33333333333333) internal successors, (458), 6 states have internal predecessors, (458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:44:49,152 INFO L201 CegarLoopForPetriNet]: Found error trace [2023-02-15 01:44:49,152 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 01:44:49,161 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-02-15 01:44:49,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-15 01:44:49,360 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2023-02-15 01:44:49,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:44:49,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1816875148, now seen corresponding path program 1 times [2023-02-15 01:44:49,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-15 01:44:49,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [708538935] [2023-02-15 01:44:49,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:44:49,362 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-15 01:44:49,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-15 01:44:49,363 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-15 01:44:49,365 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-02-15 01:44:49,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 01:44:49,427 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 01:44:49,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 01:44:49,492 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-02-15 01:44:49,492 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-02-15 01:44:49,493 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 18 remaining) [2023-02-15 01:44:49,494 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (16 of 18 remaining) [2023-02-15 01:44:49,494 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 18 remaining) [2023-02-15 01:44:49,494 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 18 remaining) [2023-02-15 01:44:49,494 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 18 remaining) [2023-02-15 01:44:49,494 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 18 remaining) [2023-02-15 01:44:49,495 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE (11 of 18 remaining) [2023-02-15 01:44:49,495 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE (10 of 18 remaining) [2023-02-15 01:44:49,495 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE (9 of 18 remaining) [2023-02-15 01:44:49,495 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 18 remaining) [2023-02-15 01:44:49,495 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 18 remaining) [2023-02-15 01:44:49,495 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 18 remaining) [2023-02-15 01:44:49,495 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 18 remaining) [2023-02-15 01:44:49,495 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 18 remaining) [2023-02-15 01:44:49,496 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 18 remaining) [2023-02-15 01:44:49,496 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 18 remaining) [2023-02-15 01:44:49,496 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 18 remaining) [2023-02-15 01:44:49,496 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 18 remaining) [2023-02-15 01:44:49,529 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-02-15 01:44:49,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-15 01:44:49,697 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 01:44:49,701 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-02-15 01:44:49,701 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-15 01:44:49,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 01:44:49 BasicIcfg [2023-02-15 01:44:49,724 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-15 01:44:49,727 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-15 01:44:49,728 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-15 01:44:49,728 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-15 01:44:49,728 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 01:44:11" (3/4) ... [2023-02-15 01:44:49,730 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-02-15 01:44:49,774 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-15 01:44:49,774 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-15 01:44:49,775 INFO L158 Benchmark]: Toolchain (without parser) took 39771.06ms. Allocated memory was 100.7MB in the beginning and 123.7MB in the end (delta: 23.1MB). Free memory was 76.0MB in the beginning and 56.7MB in the end (delta: 19.3MB). Peak memory consumption was 45.2MB. Max. memory is 16.1GB. [2023-02-15 01:44:49,775 INFO L158 Benchmark]: CDTParser took 1.16ms. Allocated memory is still 67.1MB. Free memory is still 44.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 01:44:49,775 INFO L158 Benchmark]: CACSL2BoogieTranslator took 560.57ms. Allocated memory is still 100.7MB. Free memory was 76.0MB in the beginning and 75.8MB in the end (delta: 172.6kB). Peak memory consumption was 37.5MB. Max. memory is 16.1GB. [2023-02-15 01:44:49,775 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.31ms. Allocated memory is still 100.7MB. Free memory was 75.3MB in the beginning and 73.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 01:44:49,776 INFO L158 Benchmark]: Boogie Preprocessor took 19.25ms. Allocated memory is still 100.7MB. Free memory was 73.2MB in the beginning and 71.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 01:44:49,776 INFO L158 Benchmark]: RCFGBuilder took 439.98ms. Allocated memory is still 100.7MB. Free memory was 71.1MB in the beginning and 53.2MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-02-15 01:44:49,776 INFO L158 Benchmark]: TraceAbstraction took 38665.98ms. Allocated memory was 100.7MB in the beginning and 123.7MB in the end (delta: 23.1MB). Free memory was 52.8MB in the beginning and 59.8MB in the end (delta: -7.0MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. [2023-02-15 01:44:49,777 INFO L158 Benchmark]: Witness Printer took 47.11ms. Allocated memory is still 123.7MB. Free memory was 59.8MB in the beginning and 56.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-02-15 01:44:49,778 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.16ms. Allocated memory is still 67.1MB. Free memory is still 44.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 560.57ms. Allocated memory is still 100.7MB. Free memory was 76.0MB in the beginning and 75.8MB in the end (delta: 172.6kB). Peak memory consumption was 37.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.31ms. Allocated memory is still 100.7MB. Free memory was 75.3MB in the beginning and 73.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.25ms. Allocated memory is still 100.7MB. Free memory was 73.2MB in the beginning and 71.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 439.98ms. Allocated memory is still 100.7MB. Free memory was 71.1MB in the beginning and 53.2MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 38665.98ms. Allocated memory was 100.7MB in the beginning and 123.7MB in the end (delta: 23.1MB). Free memory was 52.8MB in the beginning and 59.8MB in the end (delta: -7.0MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. * Witness Printer took 47.11ms. Allocated memory is still 123.7MB. Free memory was 59.8MB in the beginning and 56.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.5s, 101 PlacesBefore, 43 PlacesAfterwards, 103 TransitionsBefore, 43 TransitionsAfterwards, 2546 CoEnabledTransitionPairs, 7 FixpointIterations, 40 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 85 TotalNumberOfCompositions, 7730 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2462, independent: 2218, independent conditional: 0, independent unconditional: 2218, dependent: 244, dependent conditional: 0, dependent unconditional: 244, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1057, independent: 1021, independent conditional: 0, independent unconditional: 1021, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2462, independent: 1197, independent conditional: 0, independent unconditional: 1197, dependent: 208, dependent conditional: 0, dependent unconditional: 208, unknown: 1057, unknown conditional: 0, unknown unconditional: 1057] , Statistics on independence cache: Total cache size (in pairs): 135, Positive cache size: 113, Positive conditional cache size: 0, Positive unconditional cache size: 113, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L1037] 0 int size; [L1038] 0 int ind; [L1039] 0 int j = 2, i = 1; [L1040] 0 int x, y, z; [L1068] 0 size = __VERIFIER_nondet_int() [L1069] COND FALSE 0 !(size < 1 || size > 20) [L1072] 0 int *a = (int *)malloc(size); [L1073] 0 pthread_t id1, id2; [L1074] 0 ind = 0 [L1075] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, a) VAL [\old(argc)=5, a={2:0}, arg={2:0}, argc=5, argv={9:6}, argv={9:6}, i=1, id1={7:0}, id2={15:0}, ind=0, j=2, pthread_create(&id1, ((void *)0), t1, a)=0, size=2, x=0, y=0, z=0] [L1042] 1 x = 1 VAL [arg={2:0}, arg={2:0}, i=1, ind=0, j=2, size=2, x=1, y=0, z=0] [L1043] 1 y = 1 [L1044] 1 int *a = (int *)arg; VAL [a={2:0}, arg={2:0}, arg={2:0}, i=1, ind=0, j=2, size=2, x=1, y=1, z=0] [L1045] COND FALSE 1 !(y == 1 && z) VAL [a={2:0}, arg={2:0}, arg={2:0}, i=1, ind=0, j=2, size=2, x=1, y=1, z=0] [L1047] COND TRUE 1 ind < size - 1 VAL [a={2:0}, arg={2:0}, arg={2:0}, i=1, ind=0, j=2, size=2, x=1, y=1, z=0] [L1048] 1 ++ind VAL [a={2:0}, arg={2:0}, arg={2:0}, i=1, ind=1, j=2, size=2, x=1, y=1, z=0] [L1049] 1 a[ind] = i - UnprovableResult [Line: 1067]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed 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: 1077]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1077]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1077]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1075]: 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: 1076]: 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. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 131 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: 38.5s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 29.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.6s, HoareTripleCheckerStatistics: 17 mSolverCounterUnknown, 432 SdHoareTripleChecker+Valid, 28.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 249 mSDsluCounter, 64 SdHoareTripleChecker+Invalid, 28.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 23 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 730 IncrementalHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 41 mSDtfsCounter, 730 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=92occurred in iteration=0, InterpolantAutomatonStates: 26, 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: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 24 ConstructedInterpolants, 7 QuantifiedInterpolants, 372 SizeOfPredicates, 8 NumberOfNonLiveVariables, 444 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 proved your program to be incorrect! [2023-02-15 01:44:49,802 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref)