./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/ldv-races/race-2_3-container_of.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../../../trunk/examples/svcomp/ldv-races/race-2_3-container_of.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 a7e4b13d10edb91f551b46ac7114aaff2ae2d5e1278c432e05cda4c2eb58cb60 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 20:52:25,865 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 20:52:25,867 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 20:52:25,891 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 20:52:25,895 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 20:52:25,897 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 20:52:25,898 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 20:52:25,901 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 20:52:25,902 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 20:52:25,905 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 20:52:25,906 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 20:52:25,908 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 20:52:25,908 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 20:52:25,909 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 20:52:25,910 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 20:52:25,913 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 20:52:25,914 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 20:52:25,914 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 20:52:25,915 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 20:52:25,918 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 20:52:25,920 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 20:52:25,921 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 20:52:25,927 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 20:52:25,929 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 20:52:25,931 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 20:52:25,934 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 20:52:25,934 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 20:52:25,935 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 20:52:25,936 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 20:52:25,936 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 20:52:25,937 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 20:52:25,937 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 20:52:25,938 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 20:52:25,939 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 20:52:25,940 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 20:52:25,940 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 20:52:25,940 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 20:52:25,941 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 20:52:25,941 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 20:52:25,941 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 20:52:25,942 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 20:52:25,943 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-08-29 20:52:25,972 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 20:52:25,972 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 20:52:25,973 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 20:52:25,973 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 20:52:25,974 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 20:52:25,974 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 20:52:25,974 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 20:52:25,974 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 20:52:25,974 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 20:52:25,975 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 20:52:25,975 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 20:52:25,975 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 20:52:25,976 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 20:52:25,976 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 20:52:25,976 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 20:52:25,976 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-29 20:52:25,976 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-29 20:52:25,976 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-29 20:52:25,976 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 20:52:25,977 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-29 20:52:25,977 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 20:52:25,977 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 20:52:25,977 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 20:52:25,977 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 20:52:25,977 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 20:52:25,978 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 20:52:25,978 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 20:52:25,978 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 20:52:25,978 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 20:52:25,978 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 20:52:25,978 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 20:52:25,978 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 20:52:25,979 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 20:52:25,979 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 20:52:25,979 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7e4b13d10edb91f551b46ac7114aaff2ae2d5e1278c432e05cda4c2eb58cb60 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 20:52:26,246 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 20:52:26,260 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 20:52:26,265 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 20:52:26,266 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 20:52:26,266 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 20:52:26,267 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_3-container_of.i [2023-08-29 20:52:27,230 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 20:52:27,556 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 20:52:27,556 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_3-container_of.i [2023-08-29 20:52:27,589 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5694c4ff8/560e391f63e34d1799b209b6103d1ab0/FLAGc40255d3b [2023-08-29 20:52:27,804 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5694c4ff8/560e391f63e34d1799b209b6103d1ab0 [2023-08-29 20:52:27,805 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 20:52:27,806 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 20:52:27,807 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 20:52:27,807 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 20:52:27,809 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 20:52:27,809 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 08:52:27" (1/1) ... [2023-08-29 20:52:27,810 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@514faf57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:52:27, skipping insertion in model container [2023-08-29 20:52:27,810 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 08:52:27" (1/1) ... [2023-08-29 20:52:27,814 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 20:52:27,846 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 20:52:27,922 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-29 20:52:28,208 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_3-container_of.i[75002,75015] [2023-08-29 20:52:28,242 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 20:52:28,250 ERROR L324 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2023-08-29 20:52:28,250 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@400f144f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:52:28, skipping insertion in model container [2023-08-29 20:52:28,250 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 20:52:28,251 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-08-29 20:52:28,252 INFO L158 Benchmark]: Toolchain (without parser) took 445.03ms. Allocated memory is still 104.9MB. Free memory was 79.5MB in the beginning and 61.1MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-08-29 20:52:28,252 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 65.0MB. Free memory is still 42.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 20:52:28,253 INFO L158 Benchmark]: CACSL2BoogieTranslator took 443.67ms. Allocated memory is still 104.9MB. Free memory was 79.2MB in the beginning and 61.1MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-08-29 20:52:28,253 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 65.0MB. Free memory is still 42.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 443.67ms. Allocated memory is still 104.9MB. Free memory was 79.2MB in the beginning and 61.1MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1691]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../../../trunk/examples/svcomp/ldv-races/race-2_3-container_of.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 a7e4b13d10edb91f551b46ac7114aaff2ae2d5e1278c432e05cda4c2eb58cb60 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 20:52:29,646 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 20:52:29,647 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 20:52:29,679 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 20:52:29,679 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 20:52:29,681 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 20:52:29,683 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 20:52:29,684 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 20:52:29,686 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 20:52:29,689 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 20:52:29,690 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 20:52:29,692 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 20:52:29,692 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 20:52:29,693 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 20:52:29,694 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 20:52:29,697 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 20:52:29,697 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 20:52:29,698 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 20:52:29,699 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 20:52:29,703 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 20:52:29,709 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 20:52:29,710 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 20:52:29,711 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 20:52:29,711 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 20:52:29,716 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 20:52:29,717 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 20:52:29,717 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 20:52:29,718 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 20:52:29,718 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 20:52:29,719 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 20:52:29,719 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 20:52:29,720 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 20:52:29,722 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 20:52:29,722 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 20:52:29,723 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 20:52:29,723 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 20:52:29,724 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 20:52:29,724 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 20:52:29,724 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 20:52:29,725 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 20:52:29,725 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 20:52:29,726 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-08-29 20:52:29,751 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 20:52:29,751 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 20:52:29,752 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 20:52:29,752 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 20:52:29,753 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 20:52:29,753 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 20:52:29,754 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 20:52:29,754 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 20:52:29,754 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 20:52:29,754 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 20:52:29,755 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 20:52:29,755 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 20:52:29,755 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 20:52:29,755 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 20:52:29,755 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 20:52:29,755 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-29 20:52:29,755 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-29 20:52:29,756 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-29 20:52:29,756 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 20:52:29,756 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-29 20:52:29,756 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2023-08-29 20:52:29,756 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-08-29 20:52:29,756 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 20:52:29,756 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 20:52:29,757 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 20:52:29,757 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 20:52:29,757 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 20:52:29,757 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 20:52:29,757 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 20:52:29,757 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 20:52:29,758 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2023-08-29 20:52:29,758 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-08-29 20:52:29,758 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 20:52:29,758 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 20:52:29,758 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 20:52:29,758 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2023-08-29 20:52:29,758 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 20:52:29,759 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7e4b13d10edb91f551b46ac7114aaff2ae2d5e1278c432e05cda4c2eb58cb60 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 20:52:29,995 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 20:52:30,008 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 20:52:30,010 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 20:52:30,011 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 20:52:30,011 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 20:52:30,012 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_3-container_of.i [2023-08-29 20:52:30,980 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 20:52:31,228 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 20:52:31,228 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_3-container_of.i [2023-08-29 20:52:31,256 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/869796348/7fffd3bc34834027babcbdfc14e16a9b/FLAG1046063f2 [2023-08-29 20:52:31,542 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/869796348/7fffd3bc34834027babcbdfc14e16a9b [2023-08-29 20:52:31,544 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 20:52:31,545 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 20:52:31,546 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 20:52:31,548 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 20:52:31,551 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 20:52:31,551 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 08:52:31" (1/1) ... [2023-08-29 20:52:31,553 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e043e90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:52:31, skipping insertion in model container [2023-08-29 20:52:31,553 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 08:52:31" (1/1) ... [2023-08-29 20:52:31,557 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 20:52:31,594 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 20:52:31,706 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-29 20:52:32,039 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_3-container_of.i[75002,75015] [2023-08-29 20:52:32,068 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 20:52:32,076 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-08-29 20:52:32,082 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 20:52:32,083 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-29 20:52:32,095 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_3-container_of.i[75002,75015] [2023-08-29 20:52:32,102 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 20:52:32,105 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 20:52:32,111 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-29 20:52:32,125 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_3-container_of.i[75002,75015] [2023-08-29 20:52:32,131 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 20:52:32,225 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 20:52:32,225 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 20:52:32,226 WARN L667 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 20:52:32,230 INFO L208 MainTranslator]: Completed translation [2023-08-29 20:52:32,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:52:32 WrapperNode [2023-08-29 20:52:32,231 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 20:52:32,231 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 20:52:32,231 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 20:52:32,232 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 20:52:32,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:52:32" (1/1) ... [2023-08-29 20:52:32,253 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:52:32" (1/1) ... [2023-08-29 20:52:32,270 INFO L138 Inliner]: procedures = 473, calls = 63, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 142 [2023-08-29 20:52:32,270 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 20:52:32,271 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 20:52:32,271 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 20:52:32,271 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 20:52:32,276 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:52:32" (1/1) ... [2023-08-29 20:52:32,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:52:32" (1/1) ... [2023-08-29 20:52:32,280 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:52:32" (1/1) ... [2023-08-29 20:52:32,280 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:52:32" (1/1) ... [2023-08-29 20:52:32,303 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:52:32" (1/1) ... [2023-08-29 20:52:32,304 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:52:32" (1/1) ... [2023-08-29 20:52:32,308 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:52:32" (1/1) ... [2023-08-29 20:52:32,309 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:52:32" (1/1) ... [2023-08-29 20:52:32,313 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 20:52:32,313 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 20:52:32,314 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 20:52:32,314 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 20:52:32,314 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:52:32" (1/1) ... [2023-08-29 20:52:32,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 20:52:32,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 20:52:32,361 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-29 20:52:32,376 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-29 20:52:32,400 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-29 20:52:32,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 20:52:32,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-08-29 20:52:32,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-08-29 20:52:32,401 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-29 20:52:32,401 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 20:52:32,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 20:52:32,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-29 20:52:32,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 20:52:32,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 20:52:32,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-08-29 20:52:32,401 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2023-08-29 20:52:32,401 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2023-08-29 20:52:32,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 20:52:32,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-08-29 20:52:32,403 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 20:52:32,637 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 20:52:32,638 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 20:52:32,983 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 20:52:33,014 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 20:52:33,014 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 20:52:33,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 08:52:33 BoogieIcfgContainer [2023-08-29 20:52:33,016 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 20:52:33,018 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 20:52:33,018 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 20:52:33,020 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 20:52:33,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 08:52:31" (1/3) ... [2023-08-29 20:52:33,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2350539a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 08:52:33, skipping insertion in model container [2023-08-29 20:52:33,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:52:32" (2/3) ... [2023-08-29 20:52:33,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2350539a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 08:52:33, skipping insertion in model container [2023-08-29 20:52:33,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 08:52:33" (3/3) ... [2023-08-29 20:52:33,022 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_3-container_of.i [2023-08-29 20:52:33,034 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 20:52:33,034 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 49 error locations. [2023-08-29 20:52:33,034 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 20:52:33,111 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-29 20:52:33,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 209 places, 209 transitions, 434 flow [2023-08-29 20:52:33,216 INFO L130 PetriNetUnfolder]: 8/259 cut-off events. [2023-08-29 20:52:33,216 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 20:52:33,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 268 conditions, 259 events. 8/259 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 688 event pairs, 0 based on Foata normal form. 0/181 useless extension candidates. Maximal degree in co-relation 130. Up to 4 conditions per place. [2023-08-29 20:52:33,221 INFO L82 GeneralOperation]: Start removeDead. Operand has 209 places, 209 transitions, 434 flow [2023-08-29 20:52:33,230 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 207 places, 207 transitions, 426 flow [2023-08-29 20:52:33,232 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 20:52:33,237 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 207 places, 207 transitions, 426 flow [2023-08-29 20:52:33,238 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 207 places, 207 transitions, 426 flow [2023-08-29 20:52:33,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 207 places, 207 transitions, 426 flow [2023-08-29 20:52:33,293 INFO L130 PetriNetUnfolder]: 8/259 cut-off events. [2023-08-29 20:52:33,294 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 20:52:33,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 268 conditions, 259 events. 8/259 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 686 event pairs, 0 based on Foata normal form. 0/181 useless extension candidates. Maximal degree in co-relation 130. Up to 4 conditions per place. [2023-08-29 20:52:33,297 INFO L119 LiptonReduction]: Number of co-enabled transitions 6612 [2023-08-29 20:54:00,979 WARN L222 SmtUtils]: Spent 23.55s on a formula simplification that was a NOOP. DAG size: 175 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 20:54:21,603 WARN L222 SmtUtils]: Spent 20.61s on a formula simplification that was a NOOP. DAG size: 173 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 20:54:42,895 WARN L222 SmtUtils]: Spent 21.29s on a formula simplification that was a NOOP. DAG size: 175 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 20:55:02,858 WARN L222 SmtUtils]: Spent 19.96s on a formula simplification that was a NOOP. DAG size: 173 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 20:55:08,428 WARN L222 SmtUtils]: Spent 5.25s on a formula simplification. DAG size of input: 151 DAG size of output: 143 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 20:56:00,785 WARN L222 SmtUtils]: Spent 42.78s on a formula simplification. DAG size of input: 192 DAG size of output: 184 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 20:56:21,847 WARN L222 SmtUtils]: Spent 21.06s on a formula simplification that was a NOOP. DAG size: 184 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 20:57:03,239 WARN L222 SmtUtils]: Spent 41.39s on a formula simplification. DAG size of input: 192 DAG size of output: 184 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 20:57:26,645 WARN L222 SmtUtils]: Spent 23.40s on a formula simplification that was a NOOP. DAG size: 184 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 20:57:32,284 WARN L222 SmtUtils]: Spent 5.64s on a formula simplification. DAG size of input: 146 DAG size of output: 138 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 20:58:04,443 WARN L222 SmtUtils]: Spent 8.41s on a formula simplification that was a NOOP. DAG size: 212 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 20:58:12,892 WARN L222 SmtUtils]: Spent 8.45s on a formula simplification that was a NOOP. DAG size: 212 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 20:58:25,008 WARN L222 SmtUtils]: Spent 12.11s on a formula simplification that was a NOOP. DAG size: 212 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 20:58:36,976 WARN L222 SmtUtils]: Spent 11.97s on a formula simplification that was a NOOP. DAG size: 212 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 21:00:14,010 WARN L222 SmtUtils]: Spent 1.62m on a formula simplification. DAG size of input: 253 DAG size of output: 249 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 21:01:03,709 WARN L222 SmtUtils]: Spent 49.70s on a formula simplification that was a NOOP. DAG size: 245 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 21:02:34,997 WARN L222 SmtUtils]: Spent 1.52m on a formula simplification. DAG size of input: 253 DAG size of output: 246 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 21:03:18,763 WARN L222 SmtUtils]: Spent 43.76s on a formula simplification that was a NOOP. DAG size: 242 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 21:03:18,954 INFO L134 LiptonReduction]: Checked pairs total: 30886 [2023-08-29 21:03:18,954 INFO L136 LiptonReduction]: Total number of compositions: 228 [2023-08-29 21:03:18,963 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 21:03:18,968 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;@57778442, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 21:03:18,968 INFO L358 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2023-08-29 21:03:18,970 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2023-08-29 21:03:18,970 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 21:03:18,971 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:03:18,971 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 21:03:18,971 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2023-08-29 21:03:18,974 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:03:18,974 INFO L85 PathProgramCache]: Analyzing trace with hash 762, now seen corresponding path program 1 times [2023-08-29 21:03:18,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-29 21:03:18,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [882648365] [2023-08-29 21:03:18,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:03:18,989 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-29 21:03:18,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-29 21:03:18,992 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-08-29 21:03:19,001 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-08-29 21:03:19,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:03:19,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2023-08-29 21:03:19,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 21:03:19,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:03:19,087 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 21:03:19,088 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-08-29 21:03:19,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [882648365] [2023-08-29 21:03:19,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [882648365] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:03:19,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:03:19,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 21:03:19,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764666183] [2023-08-29 21:03:19,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:03:19,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 21:03:19,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-08-29 21:03:19,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 21:03:19,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 21:03:19,110 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 437 [2023-08-29 21:03:19,112 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 90 transitions, 192 flow. Second operand has 2 states, 2 states have (on average 191.5) internal successors, (383), 2 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:19,112 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:03:19,112 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 437 [2023-08-29 21:03:19,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:03:19,828 INFO L130 PetriNetUnfolder]: 661/1294 cut-off events. [2023-08-29 21:03:19,828 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2023-08-29 21:03:19,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2466 conditions, 1294 events. 661/1294 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 8438 event pairs, 660 based on Foata normal form. 0/944 useless extension candidates. Maximal degree in co-relation 2320. Up to 1154 conditions per place. [2023-08-29 21:03:19,839 INFO L137 encePairwiseOnDemand]: 422/437 looper letters, 51 selfloop transitions, 0 changer transitions 0/75 dead transitions. [2023-08-29 21:03:19,839 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 75 transitions, 264 flow [2023-08-29 21:03:19,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 21:03:19,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 21:03:19,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 448 transitions. [2023-08-29 21:03:19,857 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5125858123569794 [2023-08-29 21:03:19,857 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 448 transitions. [2023-08-29 21:03:19,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 448 transitions. [2023-08-29 21:03:19,860 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:03:19,862 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 448 transitions. [2023-08-29 21:03:19,864 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 224.0) internal successors, (448), 2 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:19,867 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 437.0) internal successors, (1311), 3 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:19,868 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 437.0) internal successors, (1311), 3 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:19,869 INFO L175 Difference]: Start difference. First operand has 93 places, 90 transitions, 192 flow. Second operand 2 states and 448 transitions. [2023-08-29 21:03:19,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 75 transitions, 264 flow [2023-08-29 21:03:19,873 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 75 transitions, 256 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-29 21:03:19,875 INFO L231 Difference]: Finished difference. Result has 77 places, 75 transitions, 154 flow [2023-08-29 21:03:19,877 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=154, PETRI_PLACES=77, PETRI_TRANSITIONS=75} [2023-08-29 21:03:19,880 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, -16 predicate places. [2023-08-29 21:03:19,880 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 75 transitions, 154 flow [2023-08-29 21:03:19,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 191.5) internal successors, (383), 2 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:19,881 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:03:19,881 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-29 21:03:19,902 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 [2023-08-29 21:03:20,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-29 21:03:20,102 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2023-08-29 21:03:20,107 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:03:20,107 INFO L85 PathProgramCache]: Analyzing trace with hash 24592, now seen corresponding path program 1 times [2023-08-29 21:03:20,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-29 21:03:20,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1383585517] [2023-08-29 21:03:20,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:03:20,108 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-29 21:03:20,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-29 21:03:20,109 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-08-29 21:03:20,111 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-08-29 21:03:20,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:03:20,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-29 21:03:20,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 21:03:20,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:03:20,237 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 21:03:20,237 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-08-29 21:03:20,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1383585517] [2023-08-29 21:03:20,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1383585517] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:03:20,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:03:20,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 21:03:20,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008546224] [2023-08-29 21:03:20,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:03:20,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 21:03:20,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-08-29 21:03:20,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 21:03:20,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 21:03:20,247 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 437 [2023-08-29 21:03:20,248 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 75 transitions, 154 flow. Second operand has 3 states, 3 states have (on average 187.66666666666666) internal successors, (563), 3 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:20,248 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:03:20,248 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 437 [2023-08-29 21:03:20,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:03:21,689 INFO L130 PetriNetUnfolder]: 660/1304 cut-off events. [2023-08-29 21:03:21,690 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2023-08-29 21:03:21,691 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2474 conditions, 1304 events. 660/1304 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 8100 event pairs, 660 based on Foata normal form. 0/951 useless extension candidates. Maximal degree in co-relation 2471. Up to 1149 conditions per place. [2023-08-29 21:03:21,696 INFO L137 encePairwiseOnDemand]: 433/437 looper letters, 62 selfloop transitions, 1 changer transitions 1/88 dead transitions. [2023-08-29 21:03:21,696 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 88 transitions, 308 flow [2023-08-29 21:03:21,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 21:03:21,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 21:03:21,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 628 transitions. [2023-08-29 21:03:21,700 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.479023646071701 [2023-08-29 21:03:21,700 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 628 transitions. [2023-08-29 21:03:21,700 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 628 transitions. [2023-08-29 21:03:21,700 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:03:21,700 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 628 transitions. [2023-08-29 21:03:21,701 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 209.33333333333334) internal successors, (628), 3 states have internal predecessors, (628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:21,704 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:21,704 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:21,704 INFO L175 Difference]: Start difference. First operand has 77 places, 75 transitions, 154 flow. Second operand 3 states and 628 transitions. [2023-08-29 21:03:21,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 88 transitions, 308 flow [2023-08-29 21:03:21,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 88 transitions, 308 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 21:03:21,706 INFO L231 Difference]: Finished difference. Result has 80 places, 75 transitions, 163 flow [2023-08-29 21:03:21,707 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=163, PETRI_PLACES=80, PETRI_TRANSITIONS=75} [2023-08-29 21:03:21,707 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, -13 predicate places. [2023-08-29 21:03:21,707 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 75 transitions, 163 flow [2023-08-29 21:03:21,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 187.66666666666666) internal successors, (563), 3 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:21,708 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:03:21,708 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-29 21:03:21,722 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-08-29 21:03:21,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-29 21:03:21,917 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2023-08-29 21:03:21,918 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:03:21,918 INFO L85 PathProgramCache]: Analyzing trace with hash 758461, now seen corresponding path program 1 times [2023-08-29 21:03:21,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-29 21:03:21,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [791633537] [2023-08-29 21:03:21,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:03:21,919 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-29 21:03:21,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-29 21:03:21,930 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-08-29 21:03:21,932 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-08-29 21:03:22,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:03:22,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 7 conjunts are in the unsatisfiable core [2023-08-29 21:03:22,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 21:03:22,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 21:03:22,147 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2023-08-29 21:03:22,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:03:22,174 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 21:03:22,174 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-08-29 21:03:22,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [791633537] [2023-08-29 21:03:22,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [791633537] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:03:22,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:03:22,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 21:03:22,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112579722] [2023-08-29 21:03:22,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:03:22,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 21:03:22,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-08-29 21:03:22,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 21:03:22,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 21:03:22,518 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 437 [2023-08-29 21:03:22,519 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 75 transitions, 163 flow. Second operand has 3 states, 3 states have (on average 189.0) internal successors, (567), 3 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:22,519 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:03:22,519 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 437 [2023-08-29 21:03:22,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:03:23,237 INFO L130 PetriNetUnfolder]: 654/1282 cut-off events. [2023-08-29 21:03:23,240 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2023-08-29 21:03:23,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2489 conditions, 1282 events. 654/1282 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 8178 event pairs, 654 based on Foata normal form. 0/959 useless extension candidates. Maximal degree in co-relation 2484. Up to 1148 conditions per place. [2023-08-29 21:03:23,245 INFO L137 encePairwiseOnDemand]: 433/437 looper letters, 47 selfloop transitions, 2 changer transitions 0/73 dead transitions. [2023-08-29 21:03:23,245 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 73 transitions, 257 flow [2023-08-29 21:03:23,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 21:03:23,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 21:03:23,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 615 transitions. [2023-08-29 21:03:23,249 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4691075514874142 [2023-08-29 21:03:23,249 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 615 transitions. [2023-08-29 21:03:23,249 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 615 transitions. [2023-08-29 21:03:23,253 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:03:23,253 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 615 transitions. [2023-08-29 21:03:23,254 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 205.0) internal successors, (615), 3 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:23,256 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:23,256 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:23,256 INFO L175 Difference]: Start difference. First operand has 80 places, 75 transitions, 163 flow. Second operand 3 states and 615 transitions. [2023-08-29 21:03:23,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 73 transitions, 257 flow [2023-08-29 21:03:23,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 73 transitions, 256 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 21:03:23,259 INFO L231 Difference]: Finished difference. Result has 79 places, 73 transitions, 162 flow [2023-08-29 21:03:23,259 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=162, PETRI_PLACES=79, PETRI_TRANSITIONS=73} [2023-08-29 21:03:23,260 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, -14 predicate places. [2023-08-29 21:03:23,260 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 73 transitions, 162 flow [2023-08-29 21:03:23,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 189.0) internal successors, (567), 3 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:23,261 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:03:23,261 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-29 21:03:23,272 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-08-29 21:03:23,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-29 21:03:23,472 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr32REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2023-08-29 21:03:23,472 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:03:23,472 INFO L85 PathProgramCache]: Analyzing trace with hash 761504, now seen corresponding path program 1 times [2023-08-29 21:03:23,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-29 21:03:23,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2121640614] [2023-08-29 21:03:23,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:03:23,473 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-29 21:03:23,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-29 21:03:23,474 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-08-29 21:03:23,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-08-29 21:03:23,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:03:23,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-29 21:03:23,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 21:03:23,574 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-08-29 21:03:23,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:03:23,584 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 21:03:23,584 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-08-29 21:03:23,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2121640614] [2023-08-29 21:03:23,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2121640614] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:03:23,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:03:23,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 21:03:23,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300359338] [2023-08-29 21:03:23,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:03:23,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 21:03:23,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-08-29 21:03:23,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 21:03:23,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 21:03:23,781 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 437 [2023-08-29 21:03:23,781 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 73 transitions, 162 flow. Second operand has 3 states, 3 states have (on average 175.0) internal successors, (525), 3 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:23,781 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:03:23,782 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 437 [2023-08-29 21:03:23,782 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:03:24,595 INFO L130 PetriNetUnfolder]: 654/1264 cut-off events. [2023-08-29 21:03:24,595 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2023-08-29 21:03:24,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2473 conditions, 1264 events. 654/1264 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 7874 event pairs, 606 based on Foata normal form. 0/941 useless extension candidates. Maximal degree in co-relation 2468. Up to 1062 conditions per place. [2023-08-29 21:03:24,600 INFO L137 encePairwiseOnDemand]: 431/437 looper letters, 50 selfloop transitions, 5 changer transitions 0/78 dead transitions. [2023-08-29 21:03:24,600 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 78 transitions, 282 flow [2023-08-29 21:03:24,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 21:03:24,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 21:03:24,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 578 transitions. [2023-08-29 21:03:24,603 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.440884820747521 [2023-08-29 21:03:24,603 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 578 transitions. [2023-08-29 21:03:24,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 578 transitions. [2023-08-29 21:03:24,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:03:24,603 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 578 transitions. [2023-08-29 21:03:24,604 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 192.66666666666666) internal successors, (578), 3 states have internal predecessors, (578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:24,606 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:24,607 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:24,607 INFO L175 Difference]: Start difference. First operand has 79 places, 73 transitions, 162 flow. Second operand 3 states and 578 transitions. [2023-08-29 21:03:24,607 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 78 transitions, 282 flow [2023-08-29 21:03:24,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 78 transitions, 280 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 21:03:24,608 INFO L231 Difference]: Finished difference. Result has 79 places, 72 transitions, 168 flow [2023-08-29 21:03:24,609 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=168, PETRI_PLACES=79, PETRI_TRANSITIONS=72} [2023-08-29 21:03:24,609 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, -14 predicate places. [2023-08-29 21:03:24,609 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 72 transitions, 168 flow [2023-08-29 21:03:24,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 175.0) internal successors, (525), 3 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:24,610 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:03:24,610 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-29 21:03:24,635 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-08-29 21:03:24,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-29 21:03:24,821 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2023-08-29 21:03:24,821 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:03:24,821 INFO L85 PathProgramCache]: Analyzing trace with hash 758460, now seen corresponding path program 1 times [2023-08-29 21:03:24,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-29 21:03:24,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [809159686] [2023-08-29 21:03:24,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:03:24,822 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-29 21:03:24,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-29 21:03:24,824 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-08-29 21:03:24,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-08-29 21:03:24,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:03:24,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-29 21:03:24,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 21:03:24,976 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2023-08-29 21:03:24,976 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2023-08-29 21:03:24,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:03:24,991 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 21:03:24,991 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-08-29 21:03:24,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [809159686] [2023-08-29 21:03:24,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [809159686] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:03:24,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:03:24,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 21:03:24,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798720552] [2023-08-29 21:03:24,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:03:24,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 21:03:24,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-08-29 21:03:24,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 21:03:24,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 21:03:25,201 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 437 [2023-08-29 21:03:25,201 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 72 transitions, 168 flow. Second operand has 3 states, 3 states have (on average 188.0) internal successors, (564), 3 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:25,201 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:03:25,202 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 437 [2023-08-29 21:03:25,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:03:26,090 INFO L130 PetriNetUnfolder]: 624/1218 cut-off events. [2023-08-29 21:03:26,090 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2023-08-29 21:03:26,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2393 conditions, 1218 events. 624/1218 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 7581 event pairs, 576 based on Foata normal form. 0/927 useless extension candidates. Maximal degree in co-relation 2388. Up to 993 conditions per place. [2023-08-29 21:03:26,095 INFO L137 encePairwiseOnDemand]: 426/437 looper letters, 53 selfloop transitions, 9 changer transitions 0/86 dead transitions. [2023-08-29 21:03:26,095 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 86 transitions, 322 flow [2023-08-29 21:03:26,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 21:03:26,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 21:03:26,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 625 transitions. [2023-08-29 21:03:26,097 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4767353165522502 [2023-08-29 21:03:26,097 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 625 transitions. [2023-08-29 21:03:26,097 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 625 transitions. [2023-08-29 21:03:26,097 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:03:26,097 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 625 transitions. [2023-08-29 21:03:26,098 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:26,100 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:26,101 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:26,101 INFO L175 Difference]: Start difference. First operand has 79 places, 72 transitions, 168 flow. Second operand 3 states and 625 transitions. [2023-08-29 21:03:26,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 86 transitions, 322 flow [2023-08-29 21:03:26,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 86 transitions, 310 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 21:03:26,103 INFO L231 Difference]: Finished difference. Result has 78 places, 71 transitions, 185 flow [2023-08-29 21:03:26,103 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=185, PETRI_PLACES=78, PETRI_TRANSITIONS=71} [2023-08-29 21:03:26,103 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, -15 predicate places. [2023-08-29 21:03:26,104 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 71 transitions, 185 flow [2023-08-29 21:03:26,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 188.0) internal successors, (564), 3 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:26,104 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:03:26,104 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-29 21:03:26,113 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-08-29 21:03:26,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-29 21:03:26,314 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2023-08-29 21:03:26,314 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:03:26,314 INFO L85 PathProgramCache]: Analyzing trace with hash 761505, now seen corresponding path program 1 times [2023-08-29 21:03:26,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-29 21:03:26,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [503578505] [2023-08-29 21:03:26,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:03:26,315 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-29 21:03:26,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-29 21:03:26,318 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) [2023-08-29 21:03:26,318 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 [2023-08-29 21:03:26,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:03:26,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-29 21:03:26,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 21:03:26,427 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-08-29 21:03:26,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:03:26,445 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 21:03:26,445 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-08-29 21:03:26,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [503578505] [2023-08-29 21:03:26,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [503578505] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:03:26,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:03:26,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 21:03:26,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991485728] [2023-08-29 21:03:26,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:03:26,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 21:03:26,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-08-29 21:03:26,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 21:03:26,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 21:03:26,771 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 437 [2023-08-29 21:03:26,772 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 71 transitions, 185 flow. Second operand has 3 states, 3 states have (on average 182.0) internal successors, (546), 3 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:26,772 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:03:26,772 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 437 [2023-08-29 21:03:26,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:03:27,770 INFO L130 PetriNetUnfolder]: 528/1054 cut-off events. [2023-08-29 21:03:27,770 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2023-08-29 21:03:27,771 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2093 conditions, 1054 events. 528/1054 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 6390 event pairs, 399 based on Foata normal form. 17/830 useless extension candidates. Maximal degree in co-relation 2087. Up to 687 conditions per place. [2023-08-29 21:03:27,774 INFO L137 encePairwiseOnDemand]: 427/437 looper letters, 52 selfloop transitions, 6 changer transitions 0/82 dead transitions. [2023-08-29 21:03:27,774 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 82 transitions, 323 flow [2023-08-29 21:03:27,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 21:03:27,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 21:03:27,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 605 transitions. [2023-08-29 21:03:27,779 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4614797864225782 [2023-08-29 21:03:27,779 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 605 transitions. [2023-08-29 21:03:27,779 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 605 transitions. [2023-08-29 21:03:27,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:03:27,781 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 605 transitions. [2023-08-29 21:03:27,782 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 201.66666666666666) internal successors, (605), 3 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:27,786 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:27,786 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:27,786 INFO L175 Difference]: Start difference. First operand has 78 places, 71 transitions, 185 flow. Second operand 3 states and 605 transitions. [2023-08-29 21:03:27,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 82 transitions, 323 flow [2023-08-29 21:03:27,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 82 transitions, 314 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 21:03:27,789 INFO L231 Difference]: Finished difference. Result has 80 places, 71 transitions, 202 flow [2023-08-29 21:03:27,789 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=202, PETRI_PLACES=80, PETRI_TRANSITIONS=71} [2023-08-29 21:03:27,792 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, -13 predicate places. [2023-08-29 21:03:27,792 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 71 transitions, 202 flow [2023-08-29 21:03:27,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 182.0) internal successors, (546), 3 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:27,793 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:03:27,793 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-29 21:03:27,818 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 [2023-08-29 21:03:28,002 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 [2023-08-29 21:03:28,003 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2023-08-29 21:03:28,003 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:03:28,004 INFO L85 PathProgramCache]: Analyzing trace with hash 23513349, now seen corresponding path program 1 times [2023-08-29 21:03:28,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-29 21:03:28,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1718446926] [2023-08-29 21:03:28,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:03:28,004 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-29 21:03:28,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-29 21:03:28,005 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) [2023-08-29 21:03:28,007 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 [2023-08-29 21:03:28,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:03:28,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 20 conjunts are in the unsatisfiable core [2023-08-29 21:03:28,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 21:03:28,121 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-08-29 21:03:28,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:03:28,163 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 21:03:28,163 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-08-29 21:03:28,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1718446926] [2023-08-29 21:03:28,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1718446926] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:03:28,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:03:28,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 21:03:28,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090055701] [2023-08-29 21:03:28,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:03:28,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-29 21:03:28,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-08-29 21:03:28,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-29 21:03:28,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-29 21:03:28,895 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 437 [2023-08-29 21:03:28,896 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 71 transitions, 202 flow. Second operand has 5 states, 5 states have (on average 183.8) internal successors, (919), 5 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:28,896 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:03:28,896 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 437 [2023-08-29 21:03:28,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:03:31,063 INFO L130 PetriNetUnfolder]: 555/1189 cut-off events. [2023-08-29 21:03:31,063 INFO L131 PetriNetUnfolder]: For 38/38 co-relation queries the response was YES. [2023-08-29 21:03:31,064 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2405 conditions, 1189 events. 555/1189 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 7566 event pairs, 260 based on Foata normal form. 156/1081 useless extension candidates. Maximal degree in co-relation 2398. Up to 627 conditions per place. [2023-08-29 21:03:31,067 INFO L137 encePairwiseOnDemand]: 427/437 looper letters, 84 selfloop transitions, 10 changer transitions 2/117 dead transitions. [2023-08-29 21:03:31,067 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 117 transitions, 512 flow [2023-08-29 21:03:31,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-29 21:03:31,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-29 21:03:31,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1014 transitions. [2023-08-29 21:03:31,070 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4640732265446224 [2023-08-29 21:03:31,070 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1014 transitions. [2023-08-29 21:03:31,070 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1014 transitions. [2023-08-29 21:03:31,070 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:03:31,071 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1014 transitions. [2023-08-29 21:03:31,072 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 202.8) internal successors, (1014), 5 states have internal predecessors, (1014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:31,074 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 437.0) internal successors, (2622), 6 states have internal predecessors, (2622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:31,075 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 437.0) internal successors, (2622), 6 states have internal predecessors, (2622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:31,075 INFO L175 Difference]: Start difference. First operand has 80 places, 71 transitions, 202 flow. Second operand 5 states and 1014 transitions. [2023-08-29 21:03:31,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 117 transitions, 512 flow [2023-08-29 21:03:31,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 117 transitions, 490 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 21:03:31,079 INFO L231 Difference]: Finished difference. Result has 84 places, 75 transitions, 244 flow [2023-08-29 21:03:31,079 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=244, PETRI_PLACES=84, PETRI_TRANSITIONS=75} [2023-08-29 21:03:31,081 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, -9 predicate places. [2023-08-29 21:03:31,081 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 75 transitions, 244 flow [2023-08-29 21:03:31,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 183.8) internal successors, (919), 5 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:31,081 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:03:31,081 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-29 21:03:31,090 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 [2023-08-29 21:03:31,290 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 [2023-08-29 21:03:31,290 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2023-08-29 21:03:31,291 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:03:31,291 INFO L85 PathProgramCache]: Analyzing trace with hash 23513348, now seen corresponding path program 1 times [2023-08-29 21:03:31,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-29 21:03:31,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1660372938] [2023-08-29 21:03:31,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:03:31,291 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-29 21:03:31,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-29 21:03:31,292 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) [2023-08-29 21:03:31,293 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 [2023-08-29 21:03:31,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:03:31,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjunts are in the unsatisfiable core [2023-08-29 21:03:31,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 21:03:31,454 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-08-29 21:03:31,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:03:31,487 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 21:03:31,487 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-08-29 21:03:31,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1660372938] [2023-08-29 21:03:31,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1660372938] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:03:31,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:03:31,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 21:03:31,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321010437] [2023-08-29 21:03:31,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:03:31,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-29 21:03:31,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-08-29 21:03:31,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-29 21:03:31,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-29 21:03:31,950 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 437 [2023-08-29 21:03:31,951 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 75 transitions, 244 flow. Second operand has 5 states, 5 states have (on average 180.8) internal successors, (904), 5 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:31,951 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:03:31,951 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 437 [2023-08-29 21:03:31,951 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:03:34,150 INFO L130 PetriNetUnfolder]: 894/1736 cut-off events. [2023-08-29 21:03:34,150 INFO L131 PetriNetUnfolder]: For 308/308 co-relation queries the response was YES. [2023-08-29 21:03:34,152 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3843 conditions, 1736 events. 894/1736 cut-off events. For 308/308 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 10683 event pairs, 487 based on Foata normal form. 0/1390 useless extension candidates. Maximal degree in co-relation 3834. Up to 1122 conditions per place. [2023-08-29 21:03:34,158 INFO L137 encePairwiseOnDemand]: 420/437 looper letters, 88 selfloop transitions, 17 changer transitions 0/124 dead transitions. [2023-08-29 21:03:34,158 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 124 transitions, 563 flow [2023-08-29 21:03:34,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 21:03:34,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 21:03:34,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1189 transitions. [2023-08-29 21:03:34,163 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45347063310450036 [2023-08-29 21:03:34,164 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1189 transitions. [2023-08-29 21:03:34,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1189 transitions. [2023-08-29 21:03:34,164 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:03:34,164 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1189 transitions. [2023-08-29 21:03:34,166 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 198.16666666666666) internal successors, (1189), 6 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:34,169 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 437.0) internal successors, (3059), 7 states have internal predecessors, (3059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:34,169 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 437.0) internal successors, (3059), 7 states have internal predecessors, (3059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:34,169 INFO L175 Difference]: Start difference. First operand has 84 places, 75 transitions, 244 flow. Second operand 6 states and 1189 transitions. [2023-08-29 21:03:34,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 124 transitions, 563 flow [2023-08-29 21:03:34,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 124 transitions, 539 flow, removed 6 selfloop flow, removed 3 redundant places. [2023-08-29 21:03:34,173 INFO L231 Difference]: Finished difference. Result has 90 places, 81 transitions, 324 flow [2023-08-29 21:03:34,173 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=324, PETRI_PLACES=90, PETRI_TRANSITIONS=81} [2023-08-29 21:03:34,175 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, -3 predicate places. [2023-08-29 21:03:34,175 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 81 transitions, 324 flow [2023-08-29 21:03:34,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 180.8) internal successors, (904), 5 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:34,176 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:03:34,176 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-29 21:03:34,191 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 [2023-08-29 21:03:34,385 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 [2023-08-29 21:03:34,386 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2023-08-29 21:03:34,389 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:03:34,389 INFO L85 PathProgramCache]: Analyzing trace with hash 728895554, now seen corresponding path program 1 times [2023-08-29 21:03:34,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-29 21:03:34,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [314276587] [2023-08-29 21:03:34,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:03:34,390 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-29 21:03:34,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-29 21:03:34,391 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) [2023-08-29 21:03:34,392 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 [2023-08-29 21:03:34,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:03:34,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 8 conjunts are in the unsatisfiable core [2023-08-29 21:03:34,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 21:03:34,527 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-08-29 21:03:34,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:03:34,559 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 21:03:34,560 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-08-29 21:03:34,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [314276587] [2023-08-29 21:03:34,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [314276587] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:03:34,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:03:34,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 21:03:34,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828369907] [2023-08-29 21:03:34,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:03:34,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 21:03:34,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-08-29 21:03:34,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 21:03:34,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 21:03:34,785 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 437 [2023-08-29 21:03:34,786 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 81 transitions, 324 flow. Second operand has 3 states, 3 states have (on average 183.66666666666666) internal successors, (551), 3 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:34,786 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:03:34,786 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 437 [2023-08-29 21:03:34,786 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:03:35,837 INFO L130 PetriNetUnfolder]: 472/1022 cut-off events. [2023-08-29 21:03:35,838 INFO L131 PetriNetUnfolder]: For 788/851 co-relation queries the response was YES. [2023-08-29 21:03:35,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2553 conditions, 1022 events. 472/1022 cut-off events. For 788/851 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 6412 event pairs, 367 based on Foata normal form. 16/856 useless extension candidates. Maximal degree in co-relation 2542. Up to 677 conditions per place. [2023-08-29 21:03:35,842 INFO L137 encePairwiseOnDemand]: 428/437 looper letters, 53 selfloop transitions, 8 changer transitions 1/88 dead transitions. [2023-08-29 21:03:35,842 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 88 transitions, 464 flow [2023-08-29 21:03:35,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 21:03:35,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 21:03:35,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 605 transitions. [2023-08-29 21:03:35,846 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4614797864225782 [2023-08-29 21:03:35,847 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 605 transitions. [2023-08-29 21:03:35,847 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 605 transitions. [2023-08-29 21:03:35,847 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:03:35,847 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 605 transitions. [2023-08-29 21:03:35,848 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 201.66666666666666) internal successors, (605), 3 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:35,850 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:35,851 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:35,851 INFO L175 Difference]: Start difference. First operand has 90 places, 81 transitions, 324 flow. Second operand 3 states and 605 transitions. [2023-08-29 21:03:35,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 88 transitions, 464 flow [2023-08-29 21:03:35,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 88 transitions, 460 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 21:03:35,854 INFO L231 Difference]: Finished difference. Result has 87 places, 77 transitions, 328 flow [2023-08-29 21:03:35,854 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=328, PETRI_PLACES=87, PETRI_TRANSITIONS=77} [2023-08-29 21:03:35,854 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, -6 predicate places. [2023-08-29 21:03:35,855 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 77 transitions, 328 flow [2023-08-29 21:03:35,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 183.66666666666666) internal successors, (551), 3 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:35,855 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:03:35,855 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-29 21:03:35,866 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 [2023-08-29 21:03:36,064 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 [2023-08-29 21:03:36,065 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2023-08-29 21:03:36,065 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:03:36,065 INFO L85 PathProgramCache]: Analyzing trace with hash 728895555, now seen corresponding path program 1 times [2023-08-29 21:03:36,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-29 21:03:36,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1818542605] [2023-08-29 21:03:36,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:03:36,066 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-29 21:03:36,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-29 21:03:36,067 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-08-29 21:03:36,069 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-08-29 21:03:36,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:03:36,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-29 21:03:36,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 21:03:36,220 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-08-29 21:03:36,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:03:36,231 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 21:03:36,231 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-08-29 21:03:36,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1818542605] [2023-08-29 21:03:36,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1818542605] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:03:36,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:03:36,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 21:03:36,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691188797] [2023-08-29 21:03:36,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:03:36,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 21:03:36,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-08-29 21:03:36,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 21:03:36,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 21:03:36,466 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 437 [2023-08-29 21:03:36,467 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 77 transitions, 328 flow. Second operand has 3 states, 3 states have (on average 178.66666666666666) internal successors, (536), 3 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:36,467 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:03:36,467 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 437 [2023-08-29 21:03:36,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:03:37,521 INFO L130 PetriNetUnfolder]: 472/1004 cut-off events. [2023-08-29 21:03:37,521 INFO L131 PetriNetUnfolder]: For 565/629 co-relation queries the response was YES. [2023-08-29 21:03:37,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2583 conditions, 1004 events. 472/1004 cut-off events. For 565/629 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 6142 event pairs, 380 based on Foata normal form. 0/846 useless extension candidates. Maximal degree in co-relation 2571. Up to 669 conditions per place. [2023-08-29 21:03:37,526 INFO L137 encePairwiseOnDemand]: 427/437 looper letters, 50 selfloop transitions, 11 changer transitions 0/86 dead transitions. [2023-08-29 21:03:37,526 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 86 transitions, 470 flow [2023-08-29 21:03:37,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 21:03:37,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 21:03:37,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 586 transitions. [2023-08-29 21:03:37,530 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4469870327993898 [2023-08-29 21:03:37,530 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 586 transitions. [2023-08-29 21:03:37,531 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 586 transitions. [2023-08-29 21:03:37,531 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:03:37,531 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 586 transitions. [2023-08-29 21:03:37,532 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 195.33333333333334) internal successors, (586), 3 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:37,533 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:37,534 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:37,534 INFO L175 Difference]: Start difference. First operand has 87 places, 77 transitions, 328 flow. Second operand 3 states and 586 transitions. [2023-08-29 21:03:37,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 86 transitions, 470 flow [2023-08-29 21:03:37,536 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 86 transitions, 454 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 21:03:37,537 INFO L231 Difference]: Finished difference. Result has 86 places, 76 transitions, 332 flow [2023-08-29 21:03:37,537 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=332, PETRI_PLACES=86, PETRI_TRANSITIONS=76} [2023-08-29 21:03:37,538 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, -7 predicate places. [2023-08-29 21:03:37,538 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 76 transitions, 332 flow [2023-08-29 21:03:37,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 178.66666666666666) internal successors, (536), 3 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:37,538 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:03:37,539 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-29 21:03:37,563 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-08-29 21:03:37,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-29 21:03:37,748 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2023-08-29 21:03:37,748 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:03:37,748 INFO L85 PathProgramCache]: Analyzing trace with hash 731861356, now seen corresponding path program 1 times [2023-08-29 21:03:37,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-29 21:03:37,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [296995540] [2023-08-29 21:03:37,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:03:37,749 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-29 21:03:37,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-29 21:03:37,750 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-08-29 21:03:37,752 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-08-29 21:03:37,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:03:37,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 12 conjunts are in the unsatisfiable core [2023-08-29 21:03:37,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 21:03:37,943 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 45 [2023-08-29 21:03:38,000 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-29 21:03:38,001 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 73 treesize of output 93 [2023-08-29 21:03:38,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:03:38,027 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 21:03:38,027 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-08-29 21:03:38,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [296995540] [2023-08-29 21:03:38,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [296995540] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:03:38,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:03:38,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 21:03:38,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031334202] [2023-08-29 21:03:38,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:03:38,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 21:03:38,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-08-29 21:03:38,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 21:03:38,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 21:03:38,585 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 437 [2023-08-29 21:03:38,585 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 76 transitions, 332 flow. Second operand has 3 states, 3 states have (on average 176.33333333333334) internal successors, (529), 3 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:38,585 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:03:38,585 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 437 [2023-08-29 21:03:38,585 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:03:40,119 INFO L130 PetriNetUnfolder]: 1322/2547 cut-off events. [2023-08-29 21:03:40,119 INFO L131 PetriNetUnfolder]: For 1603/1605 co-relation queries the response was YES. [2023-08-29 21:03:40,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6362 conditions, 2547 events. 1322/2547 cut-off events. For 1603/1605 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 15876 event pairs, 904 based on Foata normal form. 0/2207 useless extension candidates. Maximal degree in co-relation 6350. Up to 1868 conditions per place. [2023-08-29 21:03:40,145 INFO L137 encePairwiseOnDemand]: 428/437 looper letters, 61 selfloop transitions, 11 changer transitions 0/91 dead transitions. [2023-08-29 21:03:40,145 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 91 transitions, 537 flow [2023-08-29 21:03:40,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 21:03:40,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 21:03:40,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 586 transitions. [2023-08-29 21:03:40,158 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4469870327993898 [2023-08-29 21:03:40,158 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 586 transitions. [2023-08-29 21:03:40,158 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 586 transitions. [2023-08-29 21:03:40,158 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:03:40,158 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 586 transitions. [2023-08-29 21:03:40,159 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 195.33333333333334) internal successors, (586), 3 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:40,160 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:40,161 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:40,161 INFO L175 Difference]: Start difference. First operand has 86 places, 76 transitions, 332 flow. Second operand 3 states and 586 transitions. [2023-08-29 21:03:40,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 91 transitions, 537 flow [2023-08-29 21:03:40,164 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 91 transitions, 511 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 21:03:40,165 INFO L231 Difference]: Finished difference. Result has 88 places, 83 transitions, 402 flow [2023-08-29 21:03:40,165 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=402, PETRI_PLACES=88, PETRI_TRANSITIONS=83} [2023-08-29 21:03:40,165 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, -5 predicate places. [2023-08-29 21:03:40,165 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 83 transitions, 402 flow [2023-08-29 21:03:40,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 176.33333333333334) internal successors, (529), 3 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:40,166 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:03:40,166 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-29 21:03:40,178 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-08-29 21:03:40,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-29 21:03:40,376 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2023-08-29 21:03:40,376 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:03:40,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1120928097, now seen corresponding path program 1 times [2023-08-29 21:03:40,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-29 21:03:40,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [34195906] [2023-08-29 21:03:40,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:03:40,377 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-29 21:03:40,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-29 21:03:40,380 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-08-29 21:03:40,382 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-08-29 21:03:40,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:03:40,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 20 conjunts are in the unsatisfiable core [2023-08-29 21:03:40,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 21:03:40,544 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-08-29 21:03:40,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:03:40,586 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 21:03:40,586 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-08-29 21:03:40,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [34195906] [2023-08-29 21:03:40,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [34195906] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:03:40,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:03:40,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 21:03:40,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351834112] [2023-08-29 21:03:40,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:03:40,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-29 21:03:40,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-08-29 21:03:40,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-29 21:03:40,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-29 21:03:41,236 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 437 [2023-08-29 21:03:41,237 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 83 transitions, 402 flow. Second operand has 5 states, 5 states have (on average 184.2) internal successors, (921), 5 states have internal predecessors, (921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:41,237 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:03:41,237 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 437 [2023-08-29 21:03:41,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:03:43,408 INFO L130 PetriNetUnfolder]: 910/1823 cut-off events. [2023-08-29 21:03:43,408 INFO L131 PetriNetUnfolder]: For 1659/1818 co-relation queries the response was YES. [2023-08-29 21:03:43,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4985 conditions, 1823 events. 910/1823 cut-off events. For 1659/1818 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 12077 event pairs, 231 based on Foata normal form. 174/1724 useless extension candidates. Maximal degree in co-relation 4972. Up to 977 conditions per place. [2023-08-29 21:03:43,415 INFO L137 encePairwiseOnDemand]: 427/437 looper letters, 84 selfloop transitions, 16 changer transitions 2/129 dead transitions. [2023-08-29 21:03:43,415 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 129 transitions, 806 flow [2023-08-29 21:03:43,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-29 21:03:43,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-29 21:03:43,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1003 transitions. [2023-08-29 21:03:43,417 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45903890160183064 [2023-08-29 21:03:43,417 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1003 transitions. [2023-08-29 21:03:43,417 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1003 transitions. [2023-08-29 21:03:43,417 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:03:43,418 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1003 transitions. [2023-08-29 21:03:43,419 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 200.6) internal successors, (1003), 5 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:43,421 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 437.0) internal successors, (2622), 6 states have internal predecessors, (2622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:43,421 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 437.0) internal successors, (2622), 6 states have internal predecessors, (2622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:43,421 INFO L175 Difference]: Start difference. First operand has 88 places, 83 transitions, 402 flow. Second operand 5 states and 1003 transitions. [2023-08-29 21:03:43,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 129 transitions, 806 flow [2023-08-29 21:03:43,425 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 129 transitions, 772 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 21:03:43,426 INFO L231 Difference]: Finished difference. Result has 92 places, 90 transitions, 473 flow [2023-08-29 21:03:43,426 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=380, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=473, PETRI_PLACES=92, PETRI_TRANSITIONS=90} [2023-08-29 21:03:43,427 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, -1 predicate places. [2023-08-29 21:03:43,427 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 90 transitions, 473 flow [2023-08-29 21:03:43,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 184.2) internal successors, (921), 5 states have internal predecessors, (921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:43,427 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:03:43,428 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-29 21:03:43,453 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-08-29 21:03:43,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-29 21:03:43,637 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2023-08-29 21:03:43,638 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:03:43,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1120928096, now seen corresponding path program 1 times [2023-08-29 21:03:43,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-29 21:03:43,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1958234012] [2023-08-29 21:03:43,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:03:43,639 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-29 21:03:43,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-29 21:03:43,639 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-08-29 21:03:43,641 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 (14)] Waiting until timeout for monitored process [2023-08-29 21:03:43,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:03:43,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 11 conjunts are in the unsatisfiable core [2023-08-29 21:03:43,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 21:03:43,771 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-08-29 21:03:43,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:03:43,791 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 21:03:43,791 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-08-29 21:03:43,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1958234012] [2023-08-29 21:03:43,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1958234012] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:03:43,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:03:43,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 21:03:43,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151175787] [2023-08-29 21:03:43,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:03:43,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-29 21:03:43,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-08-29 21:03:43,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-29 21:03:43,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-29 21:03:44,236 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 437 [2023-08-29 21:03:44,237 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 90 transitions, 473 flow. Second operand has 5 states, 5 states have (on average 181.2) internal successors, (906), 5 states have internal predecessors, (906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:44,237 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:03:44,237 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 437 [2023-08-29 21:03:44,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:03:46,150 INFO L130 PetriNetUnfolder]: 1157/2253 cut-off events. [2023-08-29 21:03:46,150 INFO L131 PetriNetUnfolder]: For 1994/2106 co-relation queries the response was YES. [2023-08-29 21:03:46,152 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6523 conditions, 2253 events. 1157/2253 cut-off events. For 1994/2106 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 14939 event pairs, 261 based on Foata normal form. 217/2170 useless extension candidates. Maximal degree in co-relation 6508. Up to 1247 conditions per place. [2023-08-29 21:03:46,156 INFO L137 encePairwiseOnDemand]: 420/437 looper letters, 94 selfloop transitions, 22 changer transitions 0/139 dead transitions. [2023-08-29 21:03:46,156 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 139 transitions, 893 flow [2023-08-29 21:03:46,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 21:03:46,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 21:03:46,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1181 transitions. [2023-08-29 21:03:46,159 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.450419527078566 [2023-08-29 21:03:46,159 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1181 transitions. [2023-08-29 21:03:46,159 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1181 transitions. [2023-08-29 21:03:46,160 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:03:46,160 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1181 transitions. [2023-08-29 21:03:46,161 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 196.83333333333334) internal successors, (1181), 6 states have internal predecessors, (1181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:46,163 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 437.0) internal successors, (3059), 7 states have internal predecessors, (3059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:46,164 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 437.0) internal successors, (3059), 7 states have internal predecessors, (3059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:46,164 INFO L175 Difference]: Start difference. First operand has 92 places, 90 transitions, 473 flow. Second operand 6 states and 1181 transitions. [2023-08-29 21:03:46,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 139 transitions, 893 flow [2023-08-29 21:03:46,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 139 transitions, 876 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 21:03:46,168 INFO L231 Difference]: Finished difference. Result has 99 places, 97 transitions, 607 flow [2023-08-29 21:03:46,168 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=456, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=607, PETRI_PLACES=99, PETRI_TRANSITIONS=97} [2023-08-29 21:03:46,168 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, 6 predicate places. [2023-08-29 21:03:46,168 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 97 transitions, 607 flow [2023-08-29 21:03:46,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 181.2) internal successors, (906), 5 states have internal predecessors, (906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:46,169 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:03:46,169 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-29 21:03:46,182 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 (14)] Forceful destruction successful, exit code 0 [2023-08-29 21:03:46,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-29 21:03:46,382 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2023-08-29 21:03:46,383 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:03:46,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1212866257, now seen corresponding path program 1 times [2023-08-29 21:03:46,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-29 21:03:46,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [276371315] [2023-08-29 21:03:46,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:03:46,384 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-29 21:03:46,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-29 21:03:46,384 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-08-29 21:03:46,386 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 (15)] Waiting until timeout for monitored process [2023-08-29 21:03:46,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:03:46,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 10 conjunts are in the unsatisfiable core [2023-08-29 21:03:46,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 21:03:46,561 INFO L173 IndexEqualityManager]: detected equality via solver [2023-08-29 21:03:46,561 INFO L173 IndexEqualityManager]: detected equality via solver [2023-08-29 21:03:46,562 INFO L173 IndexEqualityManager]: detected equality via solver [2023-08-29 21:03:46,563 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2023-08-29 21:03:46,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:03:46,599 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 21:03:46,599 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-08-29 21:03:46,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [276371315] [2023-08-29 21:03:46,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [276371315] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:03:46,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:03:46,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 21:03:46,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983643258] [2023-08-29 21:03:46,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:03:46,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 21:03:46,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-08-29 21:03:46,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 21:03:46,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 21:03:46,998 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 437 [2023-08-29 21:03:46,998 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 97 transitions, 607 flow. Second operand has 3 states, 3 states have (on average 177.0) internal successors, (531), 3 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:46,998 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:03:46,998 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 437 [2023-08-29 21:03:46,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:03:48,765 INFO L130 PetriNetUnfolder]: 1718/3089 cut-off events. [2023-08-29 21:03:48,766 INFO L131 PetriNetUnfolder]: For 5680/5706 co-relation queries the response was YES. [2023-08-29 21:03:48,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10431 conditions, 3089 events. 1718/3089 cut-off events. For 5680/5706 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 18370 event pairs, 1055 based on Foata normal form. 0/2804 useless extension candidates. Maximal degree in co-relation 10413. Up to 2483 conditions per place. [2023-08-29 21:03:48,809 INFO L137 encePairwiseOnDemand]: 429/437 looper letters, 83 selfloop transitions, 16 changer transitions 0/117 dead transitions. [2023-08-29 21:03:48,810 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 117 transitions, 935 flow [2023-08-29 21:03:48,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 21:03:48,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 21:03:48,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 587 transitions. [2023-08-29 21:03:48,812 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4477498093058734 [2023-08-29 21:03:48,812 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 587 transitions. [2023-08-29 21:03:48,812 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 587 transitions. [2023-08-29 21:03:48,813 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:03:48,813 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 587 transitions. [2023-08-29 21:03:48,814 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 195.66666666666666) internal successors, (587), 3 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:48,815 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:48,825 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:48,825 INFO L175 Difference]: Start difference. First operand has 99 places, 97 transitions, 607 flow. Second operand 3 states and 587 transitions. [2023-08-29 21:03:48,826 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 117 transitions, 935 flow [2023-08-29 21:03:48,833 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 117 transitions, 926 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 21:03:48,835 INFO L231 Difference]: Finished difference. Result has 100 places, 108 transitions, 760 flow [2023-08-29 21:03:48,835 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=599, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=760, PETRI_PLACES=100, PETRI_TRANSITIONS=108} [2023-08-29 21:03:48,836 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, 7 predicate places. [2023-08-29 21:03:48,836 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 108 transitions, 760 flow [2023-08-29 21:03:48,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 177.0) internal successors, (531), 3 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:48,836 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:03:48,836 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-29 21:03:48,851 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 (15)] Ended with exit code 0 [2023-08-29 21:03:49,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-29 21:03:49,046 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2023-08-29 21:03:49,047 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:03:49,047 INFO L85 PathProgramCache]: Analyzing trace with hash 389011317, now seen corresponding path program 1 times [2023-08-29 21:03:49,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-29 21:03:49,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [523254156] [2023-08-29 21:03:49,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:03:49,048 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-29 21:03:49,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-29 21:03:49,071 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-08-29 21:03:49,135 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 (16)] Waiting until timeout for monitored process [2023-08-29 21:03:49,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:03:49,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 12 conjunts are in the unsatisfiable core [2023-08-29 21:03:49,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 21:03:49,352 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 37 [2023-08-29 21:03:49,437 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-29 21:03:49,438 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 85 [2023-08-29 21:03:49,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:03:49,457 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 21:03:49,457 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-08-29 21:03:49,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [523254156] [2023-08-29 21:03:49,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [523254156] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:03:49,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:03:49,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 21:03:49,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100046994] [2023-08-29 21:03:49,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:03:49,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 21:03:49,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-08-29 21:03:49,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 21:03:49,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 21:03:49,869 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 437 [2023-08-29 21:03:49,869 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 108 transitions, 760 flow. Second operand has 3 states, 3 states have (on average 179.0) internal successors, (537), 3 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:49,869 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:03:49,869 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 437 [2023-08-29 21:03:49,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:03:52,186 INFO L130 PetriNetUnfolder]: 2077/3770 cut-off events. [2023-08-29 21:03:52,186 INFO L131 PetriNetUnfolder]: For 7942/7966 co-relation queries the response was YES. [2023-08-29 21:03:52,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13698 conditions, 3770 events. 2077/3770 cut-off events. For 7942/7966 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 24272 event pairs, 893 based on Foata normal form. 0/3451 useless extension candidates. Maximal degree in co-relation 13678. Up to 2831 conditions per place. [2023-08-29 21:03:52,214 INFO L137 encePairwiseOnDemand]: 428/437 looper letters, 109 selfloop transitions, 8 changer transitions 0/136 dead transitions. [2023-08-29 21:03:52,214 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 136 transitions, 1159 flow [2023-08-29 21:03:52,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 21:03:52,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 21:03:52,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 598 transitions. [2023-08-29 21:03:52,217 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45614035087719296 [2023-08-29 21:03:52,217 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 598 transitions. [2023-08-29 21:03:52,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 598 transitions. [2023-08-29 21:03:52,218 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:03:52,218 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 598 transitions. [2023-08-29 21:03:52,219 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 199.33333333333334) internal successors, (598), 3 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:52,220 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:52,221 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:52,221 INFO L175 Difference]: Start difference. First operand has 100 places, 108 transitions, 760 flow. Second operand 3 states and 598 transitions. [2023-08-29 21:03:52,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 136 transitions, 1159 flow [2023-08-29 21:03:52,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 136 transitions, 1143 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 21:03:52,235 INFO L231 Difference]: Finished difference. Result has 103 places, 115 transitions, 832 flow [2023-08-29 21:03:52,235 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=744, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=832, PETRI_PLACES=103, PETRI_TRANSITIONS=115} [2023-08-29 21:03:52,235 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, 10 predicate places. [2023-08-29 21:03:52,236 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 115 transitions, 832 flow [2023-08-29 21:03:52,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 179.0) internal successors, (537), 3 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:52,236 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:03:52,236 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 21:03:52,260 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 (16)] Ended with exit code 0 [2023-08-29 21:03:52,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-29 21:03:52,447 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2023-08-29 21:03:52,447 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:03:52,447 INFO L85 PathProgramCache]: Analyzing trace with hash -825550668, now seen corresponding path program 1 times [2023-08-29 21:03:52,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-29 21:03:52,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1458410208] [2023-08-29 21:03:52,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:03:52,448 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-29 21:03:52,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-29 21:03:52,449 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-08-29 21:03:52,451 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 (17)] Waiting until timeout for monitored process [2023-08-29 21:03:52,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:03:52,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 10 conjunts are in the unsatisfiable core [2023-08-29 21:03:52,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 21:03:52,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 21:03:52,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 21:03:52,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 21:03:52,705 INFO L173 IndexEqualityManager]: detected equality via solver [2023-08-29 21:03:52,706 INFO L173 IndexEqualityManager]: detected equality via solver [2023-08-29 21:03:52,707 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2023-08-29 21:03:52,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:03:52,748 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 21:03:52,748 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-08-29 21:03:52,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1458410208] [2023-08-29 21:03:52,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1458410208] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:03:52,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:03:52,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 21:03:52,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955192708] [2023-08-29 21:03:52,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:03:52,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 21:03:52,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-08-29 21:03:52,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 21:03:52,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 21:03:53,172 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 437 [2023-08-29 21:03:53,172 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 115 transitions, 832 flow. Second operand has 3 states, 3 states have (on average 179.66666666666666) internal successors, (539), 3 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:53,172 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:03:53,172 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 437 [2023-08-29 21:03:53,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:03:54,813 INFO L130 PetriNetUnfolder]: 2608/4732 cut-off events. [2023-08-29 21:03:54,814 INFO L131 PetriNetUnfolder]: For 13059/13083 co-relation queries the response was YES. [2023-08-29 21:03:54,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18277 conditions, 4732 events. 2608/4732 cut-off events. For 13059/13083 co-relation queries the response was YES. Maximal size of possible extension queue 270. Compared 31673 event pairs, 1033 based on Foata normal form. 0/4379 useless extension candidates. Maximal degree in co-relation 18256. Up to 3271 conditions per place. [2023-08-29 21:03:54,830 INFO L137 encePairwiseOnDemand]: 428/437 looper letters, 115 selfloop transitions, 14 changer transitions 0/147 dead transitions. [2023-08-29 21:03:54,831 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 147 transitions, 1321 flow [2023-08-29 21:03:54,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 21:03:54,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 21:03:54,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 599 transitions. [2023-08-29 21:03:54,848 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4569031273836766 [2023-08-29 21:03:54,848 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 599 transitions. [2023-08-29 21:03:54,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 599 transitions. [2023-08-29 21:03:54,848 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:03:54,848 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 599 transitions. [2023-08-29 21:03:54,867 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 199.66666666666666) internal successors, (599), 3 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:54,869 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:54,869 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 437.0) internal successors, (1748), 4 states have internal predecessors, (1748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:54,870 INFO L175 Difference]: Start difference. First operand has 103 places, 115 transitions, 832 flow. Second operand 3 states and 599 transitions. [2023-08-29 21:03:54,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 147 transitions, 1321 flow [2023-08-29 21:03:54,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 147 transitions, 1263 flow, removed 16 selfloop flow, removed 2 redundant places. [2023-08-29 21:03:54,884 INFO L231 Difference]: Finished difference. Result has 105 places, 126 transitions, 956 flow [2023-08-29 21:03:54,884 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=800, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=956, PETRI_PLACES=105, PETRI_TRANSITIONS=126} [2023-08-29 21:03:54,885 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, 12 predicate places. [2023-08-29 21:03:54,885 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 126 transitions, 956 flow [2023-08-29 21:03:54,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 179.66666666666666) internal successors, (539), 3 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:54,885 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:03:54,885 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 21:03:54,917 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 (17)] Ended with exit code 0 [2023-08-29 21:03:55,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-29 21:03:55,097 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2023-08-29 21:03:55,097 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:03:55,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1628285494, now seen corresponding path program 1 times [2023-08-29 21:03:55,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-29 21:03:55,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [401172391] [2023-08-29 21:03:55,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:03:55,098 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-29 21:03:55,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-29 21:03:55,099 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-08-29 21:03:55,105 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 (18)] Waiting until timeout for monitored process [2023-08-29 21:03:55,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:03:55,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-29 21:03:55,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 21:03:55,403 WARN L861 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#data~1#1.base_181| (_ BitVec 32))) (and (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#data~1#1.base_181|) (_ bv0 1)) (= (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#data~1#1.base_181| (_ bv0 1)) |c_#valid|))) is different from true [2023-08-29 21:03:55,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:03:55,404 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 21:03:55,404 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-08-29 21:03:55,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [401172391] [2023-08-29 21:03:55,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [401172391] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:03:55,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:03:55,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 21:03:55,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384532686] [2023-08-29 21:03:55,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:03:55,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-29 21:03:55,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-08-29 21:03:55,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-29 21:03:55,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2023-08-29 21:03:56,019 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 437 [2023-08-29 21:03:56,020 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 126 transitions, 956 flow. Second operand has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:56,020 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:03:56,020 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 437 [2023-08-29 21:03:56,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:03:58,150 INFO L130 PetriNetUnfolder]: 3256/5702 cut-off events. [2023-08-29 21:03:58,150 INFO L131 PetriNetUnfolder]: For 17701/17701 co-relation queries the response was YES. [2023-08-29 21:03:58,158 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22593 conditions, 5702 events. 3256/5702 cut-off events. For 17701/17701 co-relation queries the response was YES. Maximal size of possible extension queue 295. Compared 37158 event pairs, 1243 based on Foata normal form. 0/5214 useless extension candidates. Maximal degree in co-relation 22571. Up to 2906 conditions per place. [2023-08-29 21:03:58,168 INFO L137 encePairwiseOnDemand]: 413/437 looper letters, 113 selfloop transitions, 40 changer transitions 2/163 dead transitions. [2023-08-29 21:03:58,168 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 163 transitions, 1532 flow [2023-08-29 21:03:58,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-29 21:03:58,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-29 21:03:58,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 586 transitions. [2023-08-29 21:03:58,171 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3352402745995423 [2023-08-29 21:03:58,171 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 586 transitions. [2023-08-29 21:03:58,171 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 586 transitions. [2023-08-29 21:03:58,171 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:03:58,171 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 586 transitions. [2023-08-29 21:03:58,172 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 146.5) internal successors, (586), 4 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:58,173 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 437.0) internal successors, (2185), 5 states have internal predecessors, (2185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:58,174 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 437.0) internal successors, (2185), 5 states have internal predecessors, (2185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:58,174 INFO L175 Difference]: Start difference. First operand has 105 places, 126 transitions, 956 flow. Second operand 4 states and 586 transitions. [2023-08-29 21:03:58,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 163 transitions, 1532 flow [2023-08-29 21:03:58,190 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 163 transitions, 1456 flow, removed 16 selfloop flow, removed 2 redundant places. [2023-08-29 21:03:58,191 INFO L231 Difference]: Finished difference. Result has 107 places, 141 transitions, 1121 flow [2023-08-29 21:03:58,192 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=437, PETRI_DIFFERENCE_MINUEND_FLOW=912, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1121, PETRI_PLACES=107, PETRI_TRANSITIONS=141} [2023-08-29 21:03:58,192 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, 14 predicate places. [2023-08-29 21:03:58,192 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 141 transitions, 1121 flow [2023-08-29 21:03:58,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:03:58,192 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:03:58,193 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 21:03:58,202 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 (18)] Ended with exit code 0 [2023-08-29 21:03:58,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-29 21:03:58,402 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2023-08-29 21:03:58,402 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:03:58,402 INFO L85 PathProgramCache]: Analyzing trace with hash 707061247, now seen corresponding path program 1 times [2023-08-29 21:03:58,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-29 21:03:58,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2062952103] [2023-08-29 21:03:58,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:03:58,403 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-29 21:03:58,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-29 21:03:58,404 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-08-29 21:03:58,406 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 (19)] Waiting until timeout for monitored process [2023-08-29 21:03:58,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 21:03:58,692 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 21:03:58,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 21:03:58,822 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-08-29 21:03:58,823 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 21:03:58,823 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK (62 of 63 remaining) [2023-08-29 21:03:58,824 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK (61 of 63 remaining) [2023-08-29 21:03:58,824 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (60 of 63 remaining) [2023-08-29 21:03:58,826 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (59 of 63 remaining) [2023-08-29 21:03:58,826 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (58 of 63 remaining) [2023-08-29 21:03:58,826 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (57 of 63 remaining) [2023-08-29 21:03:58,826 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (56 of 63 remaining) [2023-08-29 21:03:58,827 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (55 of 63 remaining) [2023-08-29 21:03:58,827 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32REQUIRES_VIOLATIONMEMORY_DEREFERENCE (54 of 63 remaining) [2023-08-29 21:03:58,827 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE (53 of 63 remaining) [2023-08-29 21:03:58,827 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE (52 of 63 remaining) [2023-08-29 21:03:58,827 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (51 of 63 remaining) [2023-08-29 21:03:58,827 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (50 of 63 remaining) [2023-08-29 21:03:58,827 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (49 of 63 remaining) [2023-08-29 21:03:58,827 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (48 of 63 remaining) [2023-08-29 21:03:58,828 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (47 of 63 remaining) [2023-08-29 21:03:58,828 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36REQUIRES_VIOLATIONMEMORY_DEREFERENCE (46 of 63 remaining) [2023-08-29 21:03:58,828 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37REQUIRES_VIOLATIONMEMORY_DEREFERENCE (45 of 63 remaining) [2023-08-29 21:03:58,828 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (44 of 63 remaining) [2023-08-29 21:03:58,828 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (43 of 63 remaining) [2023-08-29 21:03:58,828 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (42 of 63 remaining) [2023-08-29 21:03:58,828 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (41 of 63 remaining) [2023-08-29 21:03:58,828 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (40 of 63 remaining) [2023-08-29 21:03:58,829 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (39 of 63 remaining) [2023-08-29 21:03:58,829 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (38 of 63 remaining) [2023-08-29 21:03:58,829 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (37 of 63 remaining) [2023-08-29 21:03:58,829 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK (36 of 63 remaining) [2023-08-29 21:03:58,829 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 63 remaining) [2023-08-29 21:03:58,829 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 63 remaining) [2023-08-29 21:03:58,829 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 63 remaining) [2023-08-29 21:03:58,829 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr40REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 63 remaining) [2023-08-29 21:03:58,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 63 remaining) [2023-08-29 21:03:58,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 63 remaining) [2023-08-29 21:03:58,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK (29 of 63 remaining) [2023-08-29 21:03:58,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 63 remaining) [2023-08-29 21:03:58,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 63 remaining) [2023-08-29 21:03:58,831 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK (26 of 63 remaining) [2023-08-29 21:03:58,831 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 63 remaining) [2023-08-29 21:03:58,831 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 63 remaining) [2023-08-29 21:03:58,831 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK (23 of 63 remaining) [2023-08-29 21:03:58,831 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 63 remaining) [2023-08-29 21:03:58,831 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 63 remaining) [2023-08-29 21:03:58,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK (20 of 63 remaining) [2023-08-29 21:03:58,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 63 remaining) [2023-08-29 21:03:58,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 63 remaining) [2023-08-29 21:03:58,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 63 remaining) [2023-08-29 21:03:58,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 63 remaining) [2023-08-29 21:03:58,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 63 remaining) [2023-08-29 21:03:58,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 63 remaining) [2023-08-29 21:03:58,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 63 remaining) [2023-08-29 21:03:58,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 63 remaining) [2023-08-29 21:03:58,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 63 remaining) [2023-08-29 21:03:58,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 63 remaining) [2023-08-29 21:03:58,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 63 remaining) [2023-08-29 21:03:58,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 63 remaining) [2023-08-29 21:03:58,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 63 remaining) [2023-08-29 21:03:58,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 63 remaining) [2023-08-29 21:03:58,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 63 remaining) [2023-08-29 21:03:58,834 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 63 remaining) [2023-08-29 21:03:58,834 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 63 remaining) [2023-08-29 21:03:58,837 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 63 remaining) [2023-08-29 21:03:58,837 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 63 remaining) [2023-08-29 21:03:58,837 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 63 remaining) [2023-08-29 21:03:58,851 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 (19)] Forceful destruction successful, exit code 0 [2023-08-29 21:03:59,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-29 21:03:59,038 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 21:03:59,042 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 21:03:59,042 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 21:03:59,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 09:03:59 BasicIcfg [2023-08-29 21:03:59,066 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 21:03:59,067 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 21:03:59,067 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 21:03:59,068 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 21:03:59,068 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 08:52:33" (3/4) ... [2023-08-29 21:03:59,069 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-29 21:03:59,069 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 21:03:59,070 INFO L158 Benchmark]: Toolchain (without parser) took 687525.03ms. Allocated memory was 67.1MB in the beginning and 432.0MB in the end (delta: 364.9MB). Free memory was 46.5MB in the beginning and 157.6MB in the end (delta: -111.1MB). Peak memory consumption was 252.9MB. Max. memory is 16.1GB. [2023-08-29 21:03:59,070 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 54.5MB. Free memory is still 32.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 21:03:59,070 INFO L158 Benchmark]: CACSL2BoogieTranslator took 685.01ms. Allocated memory was 67.1MB in the beginning and 94.4MB in the end (delta: 27.3MB). Free memory was 46.3MB in the beginning and 50.4MB in the end (delta: -4.1MB). Peak memory consumption was 32.5MB. Max. memory is 16.1GB. [2023-08-29 21:03:59,070 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.90ms. Allocated memory is still 94.4MB. Free memory was 50.4MB in the beginning and 47.1MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 21:03:59,071 INFO L158 Benchmark]: Boogie Preprocessor took 42.44ms. Allocated memory is still 94.4MB. Free memory was 47.1MB in the beginning and 43.7MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-29 21:03:59,071 INFO L158 Benchmark]: RCFGBuilder took 702.78ms. Allocated memory is still 94.4MB. Free memory was 43.3MB in the beginning and 44.3MB in the end (delta: -964.3kB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. [2023-08-29 21:03:59,071 INFO L158 Benchmark]: TraceAbstraction took 686049.42ms. Allocated memory was 94.4MB in the beginning and 432.0MB in the end (delta: 337.6MB). Free memory was 43.8MB in the beginning and 158.6MB in the end (delta: -114.9MB). Peak memory consumption was 223.8MB. Max. memory is 16.1GB. [2023-08-29 21:03:59,071 INFO L158 Benchmark]: Witness Printer took 2.20ms. Allocated memory is still 432.0MB. Free memory was 158.6MB in the beginning and 157.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 21:03:59,074 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 54.5MB. Free memory is still 32.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 685.01ms. Allocated memory was 67.1MB in the beginning and 94.4MB in the end (delta: 27.3MB). Free memory was 46.3MB in the beginning and 50.4MB in the end (delta: -4.1MB). Peak memory consumption was 32.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.90ms. Allocated memory is still 94.4MB. Free memory was 50.4MB in the beginning and 47.1MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.44ms. Allocated memory is still 94.4MB. Free memory was 47.1MB in the beginning and 43.7MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 702.78ms. Allocated memory is still 94.4MB. Free memory was 43.3MB in the beginning and 44.3MB in the end (delta: -964.3kB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. * TraceAbstraction took 686049.42ms. Allocated memory was 94.4MB in the beginning and 432.0MB in the end (delta: 337.6MB). Free memory was 43.8MB in the beginning and 158.6MB in the end (delta: -114.9MB). Peak memory consumption was 223.8MB. Max. memory is 16.1GB. * Witness Printer took 2.20ms. Allocated memory is still 432.0MB. Free memory was 158.6MB in the beginning and 157.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 645.7s, 207 PlacesBefore, 93 PlacesAfterwards, 207 TransitionsBefore, 90 TransitionsAfterwards, 6612 CoEnabledTransitionPairs, 7 FixpointIterations, 109 TrivialSequentialCompositions, 101 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 12 ConcurrentYvCompositions, 3 ChoiceCompositions, 228 TotalNumberOfCompositions, 30886 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 10097, independent: 9480, independent conditional: 0, independent unconditional: 9480, dependent: 617, dependent conditional: 0, dependent unconditional: 617, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3773, independent: 3658, independent conditional: 0, independent unconditional: 3658, dependent: 115, dependent conditional: 0, dependent unconditional: 115, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 10097, independent: 5822, independent conditional: 0, independent unconditional: 5822, dependent: 502, dependent conditional: 0, dependent unconditional: 502, unknown: 3773, unknown conditional: 0, unknown unconditional: 3773] , Statistics on independence cache: Total cache size (in pairs): 630, Positive cache size: 581, Positive conditional cache size: 0, Positive unconditional cache size: 581, Negative cache size: 49, Negative conditional cache size: 0, Negative unconditional cache size: 49, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - UnprovableResult [Line: 1675]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 1675. Possible FailurePath: [L1676] 0 pthread_t t1,t2; [L1745] CALL, EXPR 0 my_drv_init() [L1739] 0 return 0; [L1745] RET, EXPR 0 my_drv_init() [L1745] 0 int ret = my_drv_init(); [L1746] COND TRUE 0 ret==0 [L1747] 0 int probe_ret; [L1748] 0 struct my_data data; [L1749] CALL 0 my_drv_probe(&data) [L1706] 0 struct device *d = &data->dev; [L1708] 0 data->shared.a = 0 [L1709] 0 data->shared.b = 0 [L1710] 0 int res = __VERIFIER_nondet_int(); [L1711] COND FALSE 0 !(\read(res)) [L1713] FCALL, FORK 0 pthread_create(&t1, ((void *)0), my_callback, (void *)d) VAL [arg={7:24}, d={7:24}, data={7:0}, data={7:0}, pthread_create(&t1, ((void *)0), my_callback, (void *)d)=-1, res=0, t1={3:0}, t2={4:0}] [L1689] 1 struct device *dev = (struct device*)arg; [L1690] 1 struct my_data *data; [L1691] 1 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); [L1691] 1 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) [L1714] FCALL, FORK 0 pthread_create(&t2, ((void *)0), my_callback, (void *)d) VAL [__mptr={7:24}, arg={7:24}, arg={7:24}, d={7:24}, data={7:0}, data={7:0}, data={7:0}, dev={7:24}, pthread_create(&t2, ((void *)0), my_callback, (void *)d)=0, res=0, t1={3:0}, t2={4:0}] [L1716] 0 data->shared.a = 3 VAL [__mptr={7:24}, arg={7:24}, arg={7:24}, d={7:24}, data={7:0}, data={7:0}, data={7:0}, dev={7:24}, res=0, t1={3:0}, t2={4:0}] [L1694] 1 data->shared.a = 1 VAL [__mptr={7:24}, arg={7:24}, arg={7:24}, data={7:0}, dev={7:24}, t1={3:0}, t2={4:0}] [L1719] 0 data->shared.b = 3 VAL [__mptr={7:24}, arg={7:24}, arg={7:24}, d={7:24}, data={7:0}, data={7:0}, data={7:0}, dev={7:24}, res=0, t1={3:0}, t2={4:0}] [L1722] EXPR 0 data->shared.a [L1722] CALL 0 ldv_assert(data->shared.a==3) [L1675] COND TRUE 0 !expression [L1675] 0 reach_error() VAL [\old(expression)=0, __mptr={7:24}, arg={7:24}, arg={7:24}, data={7:0}, dev={7:24}, expression=0, t1={3:0}, t2={4:0}] - UnprovableResult [Line: 1744]: 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: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -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: 1675]: 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: -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: 1675]: 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: 1675]: 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: 1675]: 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: 1675]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1714]: 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: 1713]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - 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 4 procedures, 225 locations, 63 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: 685.9s, OverallIterations: 18, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 32.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 645.8s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 3141 SdHoareTripleChecker+Valid, 27.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1661 mSDsluCounter, 324 SdHoareTripleChecker+Invalid, 26.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 174 IncrementalHoareTripleChecker+Unchecked, 83 mSDsCounter, 165 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4350 IncrementalHoareTripleChecker+Invalid, 4690 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 165 mSolverCounterUnsat, 241 mSDtfsCounter, 4350 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1121occurred in iteration=17, InterpolantAutomatonStates: 61, 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: 0.2s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 88 NumberOfCodeBlocks, 88 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 62 ConstructedInterpolants, 7 QuantifiedInterpolants, 708 SizeOfPredicates, 58 NumberOfNonLiveVariables, 2202 ConjunctsInSsa, 149 ConjunctsInUnsatCore, 17 InterpolantComputations, 17 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-08-29 21:03:59,112 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample