./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_92-evilcollapse_racing.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/goblint-regression/28-race_reach_92-evilcollapse_racing.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 dda5467f7679a243042daf02aae11f74f39b907c2525dfc042cb8ad8b69dcfc9 --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 22:08:13,867 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 22:08:13,869 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 22:08:13,902 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 22:08:13,904 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 22:08:13,906 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 22:08:13,907 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 22:08:13,909 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 22:08:13,911 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 22:08:13,914 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 22:08:13,915 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 22:08:13,917 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 22:08:13,917 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 22:08:13,919 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 22:08:13,920 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 22:08:13,923 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 22:08:13,924 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 22:08:13,925 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 22:08:13,927 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 22:08:13,929 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 22:08:13,931 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 22:08:13,931 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 22:08:13,932 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 22:08:13,933 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 22:08:13,939 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 22:08:13,939 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 22:08:13,939 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 22:08:13,940 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 22:08:13,941 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 22:08:13,941 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 22:08:13,941 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 22:08:13,945 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 22:08:13,946 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 22:08:13,947 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 22:08:13,947 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 22:08:13,948 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 22:08:13,949 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 22:08:13,949 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 22:08:13,949 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 22:08:13,950 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 22:08:13,950 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 22:08:13,951 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-08-29 22:08:13,976 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 22:08:13,976 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 22:08:13,982 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 22:08:13,982 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 22:08:13,983 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 22:08:13,983 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 22:08:13,984 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 22:08:13,984 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 22:08:13,984 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 22:08:13,984 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 22:08:13,985 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 22:08:13,985 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 22:08:13,985 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 22:08:13,985 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 22:08:13,985 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 22:08:13,986 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-29 22:08:13,986 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-29 22:08:13,986 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-29 22:08:13,986 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 22:08:13,986 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-29 22:08:13,986 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 22:08:13,986 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 22:08:13,987 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 22:08:13,987 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 22:08:13,987 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 22:08:13,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 22:08:13,987 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 22:08:13,988 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 22:08:13,988 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 22:08:13,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 22:08:13,988 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 22:08:13,988 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 22:08:13,988 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 22:08:13,989 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 22:08:13,989 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dda5467f7679a243042daf02aae11f74f39b907c2525dfc042cb8ad8b69dcfc9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 22:08:14,228 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 22:08:14,243 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 22:08:14,246 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 22:08:14,247 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 22:08:14,247 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 22:08:14,248 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_92-evilcollapse_racing.i [2023-08-29 22:08:15,264 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 22:08:15,508 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 22:08:15,509 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_92-evilcollapse_racing.i [2023-08-29 22:08:15,520 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06918edd5/6a9beb47140f4ad6bf232dcbc25ec034/FLAGb458d5ff9 [2023-08-29 22:08:15,539 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06918edd5/6a9beb47140f4ad6bf232dcbc25ec034 [2023-08-29 22:08:15,540 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 22:08:15,541 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 22:08:15,543 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 22:08:15,543 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 22:08:15,545 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 22:08:15,546 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 10:08:15" (1/1) ... [2023-08-29 22:08:15,546 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c19fb59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:08:15, skipping insertion in model container [2023-08-29 22:08:15,547 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 10:08:15" (1/1) ... [2023-08-29 22:08:15,551 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 22:08:15,588 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 22:08:15,914 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_92-evilcollapse_racing.i[47038,47051] [2023-08-29 22:08:15,926 WARN L1562 CHandler]: Possible shadowing of function new [2023-08-29 22:08:15,927 WARN L1562 CHandler]: Possible shadowing of function new [2023-08-29 22:08:15,927 WARN L1562 CHandler]: Possible shadowing of function new [2023-08-29 22:08:15,928 WARN L1562 CHandler]: Possible shadowing of function new [2023-08-29 22:08:15,955 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 22:08:15,974 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 22:08:15,975 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5812b5a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:08:15, skipping insertion in model container [2023-08-29 22:08:15,975 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 22:08:15,975 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-08-29 22:08:15,977 INFO L158 Benchmark]: Toolchain (without parser) took 434.67ms. Allocated memory is still 62.9MB. Free memory was 37.5MB in the beginning and 37.5MB in the end (delta: -27.5kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-29 22:08:15,977 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 52.4MB. Free memory was 30.4MB in the beginning and 30.3MB in the end (delta: 33.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 22:08:15,978 INFO L158 Benchmark]: CACSL2BoogieTranslator took 432.10ms. Allocated memory is still 62.9MB. Free memory was 37.3MB in the beginning and 37.5MB in the end (delta: -191.8kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-29 22:08:15,979 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 52.4MB. Free memory was 30.4MB in the beginning and 30.3MB in the end (delta: 33.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 432.10ms. Allocated memory is still 62.9MB. Free memory was 37.3MB in the beginning and 37.5MB in the end (delta: -191.8kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1051]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_92-evilcollapse_racing.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 dda5467f7679a243042daf02aae11f74f39b907c2525dfc042cb8ad8b69dcfc9 --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 22:08:17,385 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 22:08:17,387 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 22:08:17,421 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 22:08:17,421 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 22:08:17,423 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 22:08:17,424 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 22:08:17,427 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 22:08:17,428 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 22:08:17,431 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 22:08:17,432 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 22:08:17,434 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 22:08:17,434 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 22:08:17,435 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 22:08:17,436 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 22:08:17,440 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 22:08:17,441 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 22:08:17,442 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 22:08:17,443 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 22:08:17,446 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 22:08:17,447 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 22:08:17,448 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 22:08:17,449 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 22:08:17,449 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 22:08:17,454 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 22:08:17,454 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 22:08:17,454 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 22:08:17,456 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 22:08:17,456 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 22:08:17,456 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 22:08:17,457 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 22:08:17,458 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 22:08:17,459 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 22:08:17,460 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 22:08:17,460 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 22:08:17,460 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 22:08:17,461 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 22:08:17,461 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 22:08:17,461 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 22:08:17,461 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 22:08:17,462 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 22:08:17,463 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-08-29 22:08:17,486 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 22:08:17,487 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 22:08:17,487 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 22:08:17,494 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 22:08:17,495 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 22:08:17,495 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 22:08:17,496 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 22:08:17,496 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 22:08:17,496 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 22:08:17,496 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 22:08:17,497 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 22:08:17,497 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 22:08:17,497 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 22:08:17,497 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 22:08:17,497 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 22:08:17,497 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-29 22:08:17,497 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-29 22:08:17,498 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-29 22:08:17,498 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 22:08:17,498 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-29 22:08:17,498 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2023-08-29 22:08:17,498 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-08-29 22:08:17,498 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 22:08:17,498 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 22:08:17,498 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 22:08:17,499 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 22:08:17,499 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 22:08:17,499 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 22:08:17,499 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 22:08:17,499 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 22:08:17,499 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2023-08-29 22:08:17,499 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-08-29 22:08:17,500 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 22:08:17,500 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 22:08:17,500 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 22:08:17,500 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2023-08-29 22:08:17,500 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 22:08:17,500 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dda5467f7679a243042daf02aae11f74f39b907c2525dfc042cb8ad8b69dcfc9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 22:08:17,746 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 22:08:17,762 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 22:08:17,765 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 22:08:17,765 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 22:08:17,766 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 22:08:17,766 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_92-evilcollapse_racing.i [2023-08-29 22:08:18,878 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 22:08:19,122 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 22:08:19,126 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_92-evilcollapse_racing.i [2023-08-29 22:08:19,150 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e6b97926/4413c4a2c57742a1a82c9daef749c96d/FLAGca10ed385 [2023-08-29 22:08:19,166 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e6b97926/4413c4a2c57742a1a82c9daef749c96d [2023-08-29 22:08:19,167 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 22:08:19,168 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 22:08:19,170 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 22:08:19,171 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 22:08:19,173 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 22:08:19,173 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 10:08:19" (1/1) ... [2023-08-29 22:08:19,174 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4568a1a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:08:19, skipping insertion in model container [2023-08-29 22:08:19,175 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 10:08:19" (1/1) ... [2023-08-29 22:08:19,179 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 22:08:19,208 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 22:08:19,505 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_92-evilcollapse_racing.i[47038,47051] [2023-08-29 22:08:19,520 WARN L1562 CHandler]: Possible shadowing of function new [2023-08-29 22:08:19,521 WARN L1562 CHandler]: Possible shadowing of function new [2023-08-29 22:08:19,521 WARN L1562 CHandler]: Possible shadowing of function new [2023-08-29 22:08:19,521 WARN L1562 CHandler]: Possible shadowing of function new [2023-08-29 22:08:19,547 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 22:08:19,571 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-08-29 22:08:19,580 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 22:08:19,605 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_92-evilcollapse_racing.i[47038,47051] [2023-08-29 22:08:19,608 WARN L1562 CHandler]: Possible shadowing of function new [2023-08-29 22:08:19,608 WARN L1562 CHandler]: Possible shadowing of function new [2023-08-29 22:08:19,609 WARN L1562 CHandler]: Possible shadowing of function new [2023-08-29 22:08:19,610 WARN L1562 CHandler]: Possible shadowing of function new [2023-08-29 22:08:19,624 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 22:08:19,634 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 22:08:19,664 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_92-evilcollapse_racing.i[47038,47051] [2023-08-29 22:08:19,666 WARN L1562 CHandler]: Possible shadowing of function new [2023-08-29 22:08:19,667 WARN L1562 CHandler]: Possible shadowing of function new [2023-08-29 22:08:19,667 WARN L1562 CHandler]: Possible shadowing of function new [2023-08-29 22:08:19,667 WARN L1562 CHandler]: Possible shadowing of function new [2023-08-29 22:08:19,694 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 22:08:19,773 INFO L208 MainTranslator]: Completed translation [2023-08-29 22:08:19,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:08:19 WrapperNode [2023-08-29 22:08:19,774 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 22:08:19,775 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 22:08:19,775 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 22:08:19,775 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 22:08:19,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:08:19" (1/1) ... [2023-08-29 22:08:19,809 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:08:19" (1/1) ... [2023-08-29 22:08:19,843 INFO L138 Inliner]: procedures = 282, calls = 51, calls flagged for inlining = 11, calls inlined = 12, statements flattened = 222 [2023-08-29 22:08:19,844 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 22:08:19,844 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 22:08:19,845 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 22:08:19,845 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 22:08:19,851 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:08:19" (1/1) ... [2023-08-29 22:08:19,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:08:19" (1/1) ... [2023-08-29 22:08:19,865 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:08:19" (1/1) ... [2023-08-29 22:08:19,867 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:08:19" (1/1) ... [2023-08-29 22:08:19,875 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:08:19" (1/1) ... [2023-08-29 22:08:19,891 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:08:19" (1/1) ... [2023-08-29 22:08:19,895 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:08:19" (1/1) ... [2023-08-29 22:08:19,902 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:08:19" (1/1) ... [2023-08-29 22:08:19,904 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 22:08:19,905 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 22:08:19,905 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 22:08:19,905 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 22:08:19,906 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:08:19" (1/1) ... [2023-08-29 22:08:19,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 22:08:19,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 22:08:19,934 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 22:08:19,936 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 22:08:19,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-08-29 22:08:19,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 22:08:19,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-29 22:08:19,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 22:08:19,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-08-29 22:08:19,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-08-29 22:08:19,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-08-29 22:08:19,967 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 22:08:19,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-29 22:08:19,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 22:08:19,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-29 22:08:19,968 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 22:08:19,969 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 22:08:19,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 22:08:19,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 22:08:19,970 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 22:08:20,100 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 22:08:20,101 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 22:08:20,673 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 22:08:20,678 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 22:08:20,678 INFO L302 CfgBuilder]: Removed 16 assume(true) statements. [2023-08-29 22:08:20,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 10:08:20 BoogieIcfgContainer [2023-08-29 22:08:20,680 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 22:08:20,684 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 22:08:20,685 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 22:08:20,686 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 22:08:20,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 10:08:19" (1/3) ... [2023-08-29 22:08:20,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16509a55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 10:08:20, skipping insertion in model container [2023-08-29 22:08:20,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:08:19" (2/3) ... [2023-08-29 22:08:20,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16509a55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 10:08:20, skipping insertion in model container [2023-08-29 22:08:20,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 10:08:20" (3/3) ... [2023-08-29 22:08:20,688 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_92-evilcollapse_racing.i [2023-08-29 22:08:20,698 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 22:08:20,699 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 48 error locations. [2023-08-29 22:08:20,699 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 22:08:20,796 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-29 22:08:20,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 257 places, 280 transitions, 568 flow [2023-08-29 22:08:20,893 INFO L130 PetriNetUnfolder]: 28/303 cut-off events. [2023-08-29 22:08:20,893 INFO L131 PetriNetUnfolder]: For 1/2 co-relation queries the response was YES. [2023-08-29 22:08:20,900 INFO L83 FinitePrefix]: Finished finitePrefix Result has 309 conditions, 303 events. 28/303 cut-off events. For 1/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 703 event pairs, 0 based on Foata normal form. 0/219 useless extension candidates. Maximal degree in co-relation 169. Up to 4 conditions per place. [2023-08-29 22:08:20,901 INFO L82 GeneralOperation]: Start removeDead. Operand has 257 places, 280 transitions, 568 flow [2023-08-29 22:08:20,905 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 257 places, 280 transitions, 568 flow [2023-08-29 22:08:20,912 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 22:08:20,921 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 257 places, 280 transitions, 568 flow [2023-08-29 22:08:20,923 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 257 places, 280 transitions, 568 flow [2023-08-29 22:08:20,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 257 places, 280 transitions, 568 flow [2023-08-29 22:08:20,961 INFO L130 PetriNetUnfolder]: 28/303 cut-off events. [2023-08-29 22:08:20,961 INFO L131 PetriNetUnfolder]: For 1/2 co-relation queries the response was YES. [2023-08-29 22:08:20,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 309 conditions, 303 events. 28/303 cut-off events. For 1/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 703 event pairs, 0 based on Foata normal form. 0/219 useless extension candidates. Maximal degree in co-relation 169. Up to 4 conditions per place. [2023-08-29 22:08:20,965 INFO L119 LiptonReduction]: Number of co-enabled transitions 5742 [2023-08-29 22:09:59,596 WARN L222 SmtUtils]: Spent 8.35s on a formula simplification that was a NOOP. DAG size: 144 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 22:10:06,156 WARN L222 SmtUtils]: Spent 6.56s on a formula simplification that was a NOOP. DAG size: 148 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 22:10:11,958 WARN L222 SmtUtils]: Spent 5.80s on a formula simplification that was a NOOP. DAG size: 144 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 22:10:20,617 WARN L222 SmtUtils]: Spent 7.87s on a formula simplification. DAG size of input: 156 DAG size of output: 148 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 22:10:29,703 WARN L222 SmtUtils]: Spent 5.64s on a formula simplification. DAG size of input: 156 DAG size of output: 148 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 22:10:39,814 WARN L222 SmtUtils]: Spent 7.44s on a formula simplification. DAG size of input: 159 DAG size of output: 151 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 22:10:50,882 WARN L222 SmtUtils]: Spent 7.40s on a formula simplification. DAG size of input: 159 DAG size of output: 151 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 22:11:14,768 WARN L222 SmtUtils]: Spent 17.15s on a formula simplification that was a NOOP. DAG size: 166 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 22:11:33,609 WARN L222 SmtUtils]: Spent 18.84s on a formula simplification that was a NOOP. DAG size: 162 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 22:11:52,201 WARN L222 SmtUtils]: Spent 18.59s on a formula simplification that was a NOOP. DAG size: 166 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 22:12:12,400 WARN L222 SmtUtils]: Spent 20.20s on a formula simplification that was a NOOP. DAG size: 162 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 22:12:23,541 WARN L222 SmtUtils]: Spent 10.25s on a formula simplification. DAG size of input: 175 DAG size of output: 167 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 22:12:38,278 WARN L222 SmtUtils]: Spent 10.17s on a formula simplification. DAG size of input: 175 DAG size of output: 167 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 22:12:52,065 WARN L222 SmtUtils]: Spent 8.46s on a formula simplification. DAG size of input: 171 DAG size of output: 163 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 22:13:03,779 WARN L222 SmtUtils]: Spent 8.16s on a formula simplification. DAG size of input: 171 DAG size of output: 163 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 22:15:33,280 WARN L222 SmtUtils]: Spent 2.38m on a formula simplification. DAG size of input: 230 DAG size of output: 214 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 22:16:38,580 WARN L222 SmtUtils]: Spent 1.09m 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 22:19:10,054 WARN L222 SmtUtils]: Spent 2.52m on a formula simplification. DAG size of input: 230 DAG size of output: 214 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 22:20:23,665 WARN L222 SmtUtils]: Spent 1.23m 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 22:20:29,326 INFO L134 LiptonReduction]: Checked pairs total: 7113 [2023-08-29 22:20:29,327 INFO L136 LiptonReduction]: Total number of compositions: 342 [2023-08-29 22:20:29,356 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 22:20:29,378 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;@159f3940, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 22:20:29,379 INFO L358 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2023-08-29 22:20:29,381 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2023-08-29 22:20:29,381 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 22:20:29,381 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 22:20:29,382 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-29 22:20:29,382 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2023-08-29 22:20:29,386 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 22:20:29,386 INFO L85 PathProgramCache]: Analyzing trace with hash 36396, now seen corresponding path program 1 times [2023-08-29 22:20:29,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-29 22:20:29,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [993956662] [2023-08-29 22:20:29,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 22:20:29,395 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 22:20:29,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-29 22:20:29,398 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 22:20:29,402 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 22:20:29,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 22:20:29,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 9 conjunts are in the unsatisfiable core [2023-08-29 22:20:29,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 22:20:29,516 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 22:20:29,516 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 22:20:29,517 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-08-29 22:20:29,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [993956662] [2023-08-29 22:20:29,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [993956662] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 22:20:29,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 22:20:29,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 22:20:29,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362170319] [2023-08-29 22:20:29,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 22:20:29,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 22:20:29,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-08-29 22:20:29,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 22:20:29,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 22:20:29,859 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 622 [2023-08-29 22:20:29,862 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 87 transitions, 182 flow. Second operand has 3 states, 3 states have (on average 252.66666666666666) internal successors, (758), 3 states have internal predecessors, (758), 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 22:20:29,862 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 22:20:29,862 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 622 [2023-08-29 22:20:29,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 22:20:31,258 INFO L130 PetriNetUnfolder]: 239/569 cut-off events. [2023-08-29 22:20:31,258 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 22:20:31,261 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1067 conditions, 569 events. 239/569 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 3010 event pairs, 200 based on Foata normal form. 33/284 useless extension candidates. Maximal degree in co-relation 981. Up to 487 conditions per place. [2023-08-29 22:20:31,267 INFO L137 encePairwiseOnDemand]: 581/622 looper letters, 56 selfloop transitions, 5 changer transitions 0/69 dead transitions. [2023-08-29 22:20:31,268 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 69 transitions, 268 flow [2023-08-29 22:20:31,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 22:20:31,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 22:20:31,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 867 transitions. [2023-08-29 22:20:31,285 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4646302250803859 [2023-08-29 22:20:31,286 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 867 transitions. [2023-08-29 22:20:31,286 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 867 transitions. [2023-08-29 22:20:31,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 22:20:31,291 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 867 transitions. [2023-08-29 22:20:31,295 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 289.0) internal successors, (867), 3 states have internal predecessors, (867), 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 22:20:31,301 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 622.0) internal successors, (2488), 4 states have internal predecessors, (2488), 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 22:20:31,302 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 622.0) internal successors, (2488), 4 states have internal predecessors, (2488), 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 22:20:31,304 INFO L175 Difference]: Start difference. First operand has 75 places, 87 transitions, 182 flow. Second operand 3 states and 867 transitions. [2023-08-29 22:20:31,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 69 transitions, 268 flow [2023-08-29 22:20:31,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 69 transitions, 268 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 22:20:31,309 INFO L231 Difference]: Finished difference. Result has 62 places, 66 transitions, 185 flow [2023-08-29 22:20:31,310 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=622, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=185, PETRI_PLACES=62, PETRI_TRANSITIONS=66} [2023-08-29 22:20:31,313 INFO L281 CegarLoopForPetriNet]: 75 programPoint places, -13 predicate places. [2023-08-29 22:20:31,313 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 66 transitions, 185 flow [2023-08-29 22:20:31,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 252.66666666666666) internal successors, (758), 3 states have internal predecessors, (758), 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 22:20:31,314 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 22:20:31,314 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-29 22:20:31,344 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 22:20:31,544 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 22:20:31,544 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2023-08-29 22:20:31,548 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 22:20:31,548 INFO L85 PathProgramCache]: Analyzing trace with hash 36397, now seen corresponding path program 1 times [2023-08-29 22:20:31,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-29 22:20:31,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [585727311] [2023-08-29 22:20:31,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 22:20:31,549 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 22:20:31,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-29 22:20:31,562 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 22:20:31,563 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 22:20:31,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 22:20:31,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-29 22:20:31,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 22:20:31,625 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 22:20:31,625 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 22:20:31,626 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-08-29 22:20:31,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [585727311] [2023-08-29 22:20:31,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [585727311] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 22:20:31,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 22:20:31,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 22:20:31,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732982257] [2023-08-29 22:20:31,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 22:20:31,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 22:20:31,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-08-29 22:20:31,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 22:20:31,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 22:20:31,886 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 253 out of 622 [2023-08-29 22:20:31,887 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 66 transitions, 185 flow. Second operand has 3 states, 3 states have (on average 253.66666666666666) internal successors, (761), 3 states have internal predecessors, (761), 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 22:20:31,887 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 22:20:31,887 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 253 of 622 [2023-08-29 22:20:31,887 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 22:20:32,698 INFO L130 PetriNetUnfolder]: 227/531 cut-off events. [2023-08-29 22:20:32,698 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 22:20:32,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1030 conditions, 531 events. 227/531 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 2849 event pairs, 152 based on Foata normal form. 2/236 useless extension candidates. Maximal degree in co-relation 989. Up to 380 conditions per place. [2023-08-29 22:20:32,700 INFO L137 encePairwiseOnDemand]: 615/622 looper letters, 73 selfloop transitions, 3 changer transitions 0/84 dead transitions. [2023-08-29 22:20:32,702 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 84 transitions, 371 flow [2023-08-29 22:20:32,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 22:20:32,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 22:20:32,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 835 transitions. [2023-08-29 22:20:32,705 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.447481243301179 [2023-08-29 22:20:32,705 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 835 transitions. [2023-08-29 22:20:32,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 835 transitions. [2023-08-29 22:20:32,705 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 22:20:32,705 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 835 transitions. [2023-08-29 22:20:32,706 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 278.3333333333333) internal successors, (835), 3 states have internal predecessors, (835), 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 22:20:32,710 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 622.0) internal successors, (2488), 4 states have internal predecessors, (2488), 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 22:20:32,711 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 622.0) internal successors, (2488), 4 states have internal predecessors, (2488), 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 22:20:32,711 INFO L175 Difference]: Start difference. First operand has 62 places, 66 transitions, 185 flow. Second operand 3 states and 835 transitions. [2023-08-29 22:20:32,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 84 transitions, 371 flow [2023-08-29 22:20:32,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 84 transitions, 366 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 22:20:32,724 INFO L231 Difference]: Finished difference. Result has 61 places, 63 transitions, 183 flow [2023-08-29 22:20:32,724 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=622, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=183, PETRI_PLACES=61, PETRI_TRANSITIONS=63} [2023-08-29 22:20:32,725 INFO L281 CegarLoopForPetriNet]: 75 programPoint places, -14 predicate places. [2023-08-29 22:20:32,725 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 63 transitions, 183 flow [2023-08-29 22:20:32,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 253.66666666666666) internal successors, (761), 3 states have internal predecessors, (761), 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 22:20:32,726 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 22:20:32,726 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-29 22:20:32,732 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-08-29 22:20:32,932 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 22:20:32,932 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2023-08-29 22:20:32,933 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 22:20:32,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1129654, now seen corresponding path program 1 times [2023-08-29 22:20:32,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-29 22:20:32,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [459184502] [2023-08-29 22:20:32,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 22:20:32,933 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 22:20:32,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-29 22:20:32,936 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 22:20:32,941 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 22:20:33,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 22:20:33,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 30 conjunts are in the unsatisfiable core [2023-08-29 22:20:33,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 22:20:33,168 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 14 treesize of output 15 [2023-08-29 22:20:33,182 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 14 treesize of output 15 [2023-08-29 22:20:33,200 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 22:20:33,200 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 22:20:33,200 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-08-29 22:20:33,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [459184502] [2023-08-29 22:20:33,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [459184502] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 22:20:33,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 22:20:33,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 22:20:33,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90059211] [2023-08-29 22:20:33,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 22:20:33,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-29 22:20:33,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-08-29 22:20:33,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-29 22:20:33,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-29 22:20:33,740 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 622 [2023-08-29 22:20:33,741 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 63 transitions, 183 flow. Second operand has 4 states, 4 states have (on average 238.75) internal successors, (955), 4 states have internal predecessors, (955), 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 22:20:33,741 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 22:20:33,741 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 622 [2023-08-29 22:20:33,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 22:20:35,785 INFO L130 PetriNetUnfolder]: 228/547 cut-off events. [2023-08-29 22:20:35,785 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2023-08-29 22:20:35,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1134 conditions, 547 events. 228/547 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 2894 event pairs, 190 based on Foata normal form. 0/273 useless extension candidates. Maximal degree in co-relation 1060. Up to 463 conditions per place. [2023-08-29 22:20:35,788 INFO L137 encePairwiseOnDemand]: 615/622 looper letters, 53 selfloop transitions, 5 changer transitions 0/66 dead transitions. [2023-08-29 22:20:35,792 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 66 transitions, 309 flow [2023-08-29 22:20:35,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-29 22:20:35,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-29 22:20:35,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1013 transitions. [2023-08-29 22:20:35,800 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4071543408360129 [2023-08-29 22:20:35,800 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1013 transitions. [2023-08-29 22:20:35,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1013 transitions. [2023-08-29 22:20:35,802 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 22:20:35,802 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1013 transitions. [2023-08-29 22:20:35,805 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 253.25) internal successors, (1013), 4 states have internal predecessors, (1013), 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 22:20:35,809 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 622.0) internal successors, (3110), 5 states have internal predecessors, (3110), 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 22:20:35,810 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 622.0) internal successors, (3110), 5 states have internal predecessors, (3110), 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 22:20:35,810 INFO L175 Difference]: Start difference. First operand has 61 places, 63 transitions, 183 flow. Second operand 4 states and 1013 transitions. [2023-08-29 22:20:35,810 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 66 transitions, 309 flow [2023-08-29 22:20:35,812 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 66 transitions, 303 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 22:20:35,813 INFO L231 Difference]: Finished difference. Result has 63 places, 63 transitions, 195 flow [2023-08-29 22:20:35,813 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=622, PETRI_DIFFERENCE_MINUEND_FLOW=169, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=195, PETRI_PLACES=63, PETRI_TRANSITIONS=63} [2023-08-29 22:20:35,814 INFO L281 CegarLoopForPetriNet]: 75 programPoint places, -12 predicate places. [2023-08-29 22:20:35,814 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 63 transitions, 195 flow [2023-08-29 22:20:35,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 238.75) internal successors, (955), 4 states have internal predecessors, (955), 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 22:20:35,815 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 22:20:35,815 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-29 22:20:35,835 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-08-29 22:20:36,035 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 22:20:36,035 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2023-08-29 22:20:36,035 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 22:20:36,036 INFO L85 PathProgramCache]: Analyzing trace with hash 35020745, now seen corresponding path program 1 times [2023-08-29 22:20:36,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-29 22:20:36,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [627196598] [2023-08-29 22:20:36,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 22:20:36,036 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 22:20:36,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-29 22:20:36,038 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 22:20:36,040 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 22:20:36,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 22:20:36,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 45 conjunts are in the unsatisfiable core [2023-08-29 22:20:36,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 22:20:38,525 INFO L321 Elim1Store]: treesize reduction 324, result has 30.9 percent of original size [2023-08-29 22:20:38,525 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 894 treesize of output 841 [2023-08-29 22:20:42,164 INFO L321 Elim1Store]: treesize reduction 324, result has 30.9 percent of original size [2023-08-29 22:20:42,164 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 442 treesize of output 633 [2023-08-29 22:20:42,365 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 22:20:42,520 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 8 treesize of output 7 [2023-08-29 22:20:42,667 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 22:20:42,844 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 8 treesize of output 7 [2023-08-29 22:20:42,987 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 12 treesize of output 11 [2023-08-29 22:20:43,098 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 8 treesize of output 7 [2023-08-29 22:20:43,200 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 8 treesize of output 7 [2023-08-29 22:20:43,445 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 8 treesize of output 7 [2023-08-29 22:20:43,621 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 12 treesize of output 11 [2023-08-29 22:20:43,732 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 12 treesize of output 11 [2023-08-29 22:20:53,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 22:20:53,772 INFO L321 Elim1Store]: treesize reduction 48, result has 14.3 percent of original size [2023-08-29 22:20:53,773 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 1158 treesize of output 1091 [2023-08-29 22:20:53,835 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 229 treesize of output 227 [2023-08-29 22:20:53,855 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 227 treesize of output 225 [2023-08-29 22:20:54,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 22:20:54,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 22:20:54,569 INFO L321 Elim1Store]: treesize reduction 271, result has 21.0 percent of original size [2023-08-29 22:20:54,569 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 2375 treesize of output 2353 [2023-08-29 22:20:58,146 INFO L321 Elim1Store]: treesize reduction 89, result has 24.6 percent of original size [2023-08-29 22:20:58,147 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 221 treesize of output 117 [2023-08-29 22:21:02,444 INFO L321 Elim1Store]: treesize reduction 25, result has 24.2 percent of original size [2023-08-29 22:21:02,445 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 108 treesize of output 104 [2023-08-29 22:21:02,454 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 25 [2023-08-29 22:21:02,566 INFO L173 IndexEqualityManager]: detected equality via solver [2023-08-29 22:21:02,569 INFO L173 IndexEqualityManager]: detected equality via solver [2023-08-29 22:21:02,592 INFO L321 Elim1Store]: treesize reduction 72, result has 1.4 percent of original size [2023-08-29 22:21:02,593 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 226 treesize of output 342 [2023-08-29 22:21:02,604 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2023-08-29 22:21:02,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 22:21:02,800 INFO L321 Elim1Store]: treesize reduction 48, result has 26.2 percent of original size [2023-08-29 22:21:02,801 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 10 case distinctions, treesize of input 546 treesize of output 523 [2023-08-29 22:21:02,941 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 400 treesize of output 398 [2023-08-29 22:21:03,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 22:21:03,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 22:21:03,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 22:21:03,534 INFO L321 Elim1Store]: treesize reduction 143, result has 5.3 percent of original size [2023-08-29 22:21:03,535 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 11 case distinctions, treesize of input 718 treesize of output 673 [2023-08-29 22:21:03,570 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2023-08-29 22:21:03,595 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 430 treesize of output 428 [2023-08-29 22:21:03,612 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 428 treesize of output 426 [2023-08-29 22:21:04,197 INFO L321 Elim1Store]: treesize reduction 67, result has 23.9 percent of original size [2023-08-29 22:21:04,200 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 395 treesize of output 335 [2023-08-29 22:21:04,591 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2023-08-29 22:21:04,609 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2023-08-29 22:21:04,733 INFO L321 Elim1Store]: treesize reduction 33, result has 19.5 percent of original size [2023-08-29 22:21:04,734 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 90 treesize of output 51 [2023-08-29 22:21:04,847 INFO L321 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2023-08-29 22:21:04,847 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 554 treesize of output 439 [2023-08-29 22:21:04,911 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2023-08-29 22:21:06,468 INFO L321 Elim1Store]: treesize reduction 234, result has 24.3 percent of original size [2023-08-29 22:21:06,469 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 16 case distinctions, treesize of input 922 treesize of output 875 [2023-08-29 22:21:07,367 INFO L321 Elim1Store]: treesize reduction 103, result has 1.0 percent of original size [2023-08-29 22:21:07,368 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 193 treesize of output 23 [2023-08-29 22:21:07,446 INFO L321 Elim1Store]: treesize reduction 129, result has 0.8 percent of original size [2023-08-29 22:21:07,447 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 11 case distinctions, treesize of input 193 treesize of output 23 [2023-08-29 22:21:07,541 INFO L321 Elim1Store]: treesize reduction 52, result has 1.9 percent of original size [2023-08-29 22:21:07,542 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 166 treesize of output 18 [2023-08-29 22:21:08,038 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 454 treesize of output 374 [2023-08-29 22:21:08,540 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 844 treesize of output 718 [2023-08-29 22:21:16,276 WARN L222 SmtUtils]: Spent 6.71s on a formula simplification. DAG size of input: 609 DAG size of output: 607 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-29 22:21:16,280 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 22:21:16,280 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 22:21:16,280 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-08-29 22:21:16,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [627196598] [2023-08-29 22:21:16,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [627196598] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 22:21:16,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 22:21:16,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 22:21:16,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787721744] [2023-08-29 22:21:16,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 22:21:16,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-29 22:21:16,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-08-29 22:21:16,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-29 22:21:16,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-29 22:21:21,350 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 622 [2023-08-29 22:21:21,351 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 63 transitions, 195 flow. Second operand has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 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 22:21:21,351 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 22:21:21,351 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 622 [2023-08-29 22:21:21,351 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 22:21:22,737 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-29 22:21:24,858 INFO L130 PetriNetUnfolder]: 248/565 cut-off events. [2023-08-29 22:21:24,858 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 22:21:24,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1162 conditions, 565 events. 248/565 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 2914 event pairs, 210 based on Foata normal form. 0/239 useless extension candidates. Maximal degree in co-relation 1131. Up to 505 conditions per place. [2023-08-29 22:21:24,860 INFO L137 encePairwiseOnDemand]: 617/622 looper letters, 54 selfloop transitions, 4 changer transitions 0/64 dead transitions. [2023-08-29 22:21:24,860 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 64 transitions, 315 flow [2023-08-29 22:21:24,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-29 22:21:24,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-29 22:21:24,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 876 transitions. [2023-08-29 22:21:24,864 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3520900321543408 [2023-08-29 22:21:24,864 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 876 transitions. [2023-08-29 22:21:24,864 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 876 transitions. [2023-08-29 22:21:24,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 22:21:24,864 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 876 transitions. [2023-08-29 22:21:24,866 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 219.0) internal successors, (876), 4 states have internal predecessors, (876), 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 22:21:24,869 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 622.0) internal successors, (3110), 5 states have internal predecessors, (3110), 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 22:21:24,870 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 622.0) internal successors, (3110), 5 states have internal predecessors, (3110), 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 22:21:24,870 INFO L175 Difference]: Start difference. First operand has 63 places, 63 transitions, 195 flow. Second operand 4 states and 876 transitions. [2023-08-29 22:21:24,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 64 transitions, 315 flow [2023-08-29 22:21:24,870 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 64 transitions, 307 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-29 22:21:24,872 INFO L231 Difference]: Finished difference. Result has 65 places, 63 transitions, 201 flow [2023-08-29 22:21:24,872 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=622, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=201, PETRI_PLACES=65, PETRI_TRANSITIONS=63} [2023-08-29 22:21:24,873 INFO L281 CegarLoopForPetriNet]: 75 programPoint places, -10 predicate places. [2023-08-29 22:21:24,873 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 63 transitions, 201 flow [2023-08-29 22:21:24,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 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 22:21:24,873 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 22:21:24,873 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-29 22:21:24,884 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 22:21:25,083 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 22:21:25,084 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2023-08-29 22:21:25,084 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 22:21:25,084 INFO L85 PathProgramCache]: Analyzing trace with hash 35016480, now seen corresponding path program 1 times [2023-08-29 22:21:25,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-29 22:21:25,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1721062868] [2023-08-29 22:21:25,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 22:21:25,085 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 22:21:25,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-29 22:21:25,086 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 22:21:25,088 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 22:21:25,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 22:21:25,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 2 conjunts are in the unsatisfiable core [2023-08-29 22:21:25,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 22:21:25,174 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 22:21:25,174 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 22:21:25,174 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-08-29 22:21:25,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1721062868] [2023-08-29 22:21:25,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1721062868] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 22:21:25,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 22:21:25,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 22:21:25,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938033143] [2023-08-29 22:21:25,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 22:21:25,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 22:21:25,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-08-29 22:21:25,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 22:21:25,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 22:21:25,212 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 253 out of 622 [2023-08-29 22:21:25,213 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 63 transitions, 201 flow. Second operand has 3 states, 3 states have (on average 254.33333333333334) internal successors, (763), 3 states have internal predecessors, (763), 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 22:21:25,213 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 22:21:25,213 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 253 of 622 [2023-08-29 22:21:25,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 22:21:27,574 INFO L130 PetriNetUnfolder]: 227/548 cut-off events. [2023-08-29 22:21:27,574 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-29 22:21:27,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1111 conditions, 548 events. 227/548 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 2919 event pairs, 190 based on Foata normal form. 1/259 useless extension candidates. Maximal degree in co-relation 1082. Up to 465 conditions per place. [2023-08-29 22:21:27,576 INFO L137 encePairwiseOnDemand]: 619/622 looper letters, 54 selfloop transitions, 4 changer transitions 0/66 dead transitions. [2023-08-29 22:21:27,577 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 66 transitions, 333 flow [2023-08-29 22:21:27,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 22:21:27,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 22:21:27,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 815 transitions. [2023-08-29 22:21:27,585 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4367631296891747 [2023-08-29 22:21:27,585 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 815 transitions. [2023-08-29 22:21:27,585 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 815 transitions. [2023-08-29 22:21:27,585 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 22:21:27,585 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 815 transitions. [2023-08-29 22:21:27,587 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 271.6666666666667) internal successors, (815), 3 states have internal predecessors, (815), 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 22:21:27,589 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 622.0) internal successors, (2488), 4 states have internal predecessors, (2488), 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 22:21:27,590 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 622.0) internal successors, (2488), 4 states have internal predecessors, (2488), 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 22:21:27,590 INFO L175 Difference]: Start difference. First operand has 65 places, 63 transitions, 201 flow. Second operand 3 states and 815 transitions. [2023-08-29 22:21:27,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 66 transitions, 333 flow [2023-08-29 22:21:27,594 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 66 transitions, 329 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 22:21:27,596 INFO L231 Difference]: Finished difference. Result has 66 places, 63 transitions, 211 flow [2023-08-29 22:21:27,596 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=622, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=211, PETRI_PLACES=66, PETRI_TRANSITIONS=63} [2023-08-29 22:21:27,597 INFO L281 CegarLoopForPetriNet]: 75 programPoint places, -9 predicate places. [2023-08-29 22:21:27,598 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 63 transitions, 211 flow [2023-08-29 22:21:27,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 254.33333333333334) internal successors, (763), 3 states have internal predecessors, (763), 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 22:21:27,598 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 22:21:27,598 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-29 22:21:27,607 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-08-29 22:21:27,805 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 22:21:27,806 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2023-08-29 22:21:27,806 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 22:21:27,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1085640301, now seen corresponding path program 1 times [2023-08-29 22:21:27,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-29 22:21:27,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1511808930] [2023-08-29 22:21:27,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 22:21:27,807 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 22:21:27,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-29 22:21:27,808 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 22:21:27,810 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 22:21:27,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 22:21:27,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-29 22:21:27,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 22:21:27,964 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 22:21:27,964 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 22:21:27,981 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 22:21:27,981 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-08-29 22:21:27,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1511808930] [2023-08-29 22:21:27,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1511808930] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 22:21:27,981 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-08-29 22:21:27,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-08-29 22:21:27,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603870510] [2023-08-29 22:21:27,982 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-08-29 22:21:27,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 22:21:27,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-08-29 22:21:27,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 22:21:27,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-08-29 22:21:28,013 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 622 [2023-08-29 22:21:28,014 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 63 transitions, 211 flow. Second operand has 6 states, 6 states have (on average 253.33333333333334) internal successors, (1520), 6 states have internal predecessors, (1520), 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 22:21:28,014 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 22:21:28,014 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 622 [2023-08-29 22:21:28,014 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 22:21:32,043 INFO L130 PetriNetUnfolder]: 230/563 cut-off events. [2023-08-29 22:21:32,044 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-08-29 22:21:32,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1179 conditions, 563 events. 230/563 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 2977 event pairs, 190 based on Foata normal form. 6/277 useless extension candidates. Maximal degree in co-relation 1095. Up to 462 conditions per place. [2023-08-29 22:21:32,046 INFO L137 encePairwiseOnDemand]: 616/622 looper letters, 60 selfloop transitions, 10 changer transitions 0/78 dead transitions. [2023-08-29 22:21:32,046 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 78 transitions, 441 flow [2023-08-29 22:21:32,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 22:21:32,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 22:21:32,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1582 transitions. [2023-08-29 22:21:32,050 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42390139335476956 [2023-08-29 22:21:32,050 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1582 transitions. [2023-08-29 22:21:32,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1582 transitions. [2023-08-29 22:21:32,051 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 22:21:32,051 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1582 transitions. [2023-08-29 22:21:32,053 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 263.6666666666667) internal successors, (1582), 6 states have internal predecessors, (1582), 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 22:21:32,056 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 622.0) internal successors, (4354), 7 states have internal predecessors, (4354), 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 22:21:32,057 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 622.0) internal successors, (4354), 7 states have internal predecessors, (4354), 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 22:21:32,057 INFO L175 Difference]: Start difference. First operand has 66 places, 63 transitions, 211 flow. Second operand 6 states and 1582 transitions. [2023-08-29 22:21:32,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 78 transitions, 441 flow [2023-08-29 22:21:32,058 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 78 transitions, 437 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 22:21:32,059 INFO L231 Difference]: Finished difference. Result has 74 places, 69 transitions, 299 flow [2023-08-29 22:21:32,059 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=622, PETRI_DIFFERENCE_MINUEND_FLOW=207, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=299, PETRI_PLACES=74, PETRI_TRANSITIONS=69} [2023-08-29 22:21:32,060 INFO L281 CegarLoopForPetriNet]: 75 programPoint places, -1 predicate places. [2023-08-29 22:21:32,060 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 69 transitions, 299 flow [2023-08-29 22:21:32,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 253.33333333333334) internal successors, (1520), 6 states have internal predecessors, (1520), 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 22:21:32,060 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 22:21:32,060 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1] [2023-08-29 22:21:32,071 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 22:21:32,269 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 22:21:32,269 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2023-08-29 22:21:32,270 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 22:21:32,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1334983264, now seen corresponding path program 2 times [2023-08-29 22:21:32,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-29 22:21:32,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [110525781] [2023-08-29 22:21:32,270 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-29 22:21:32,270 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 22:21:32,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-29 22:21:32,271 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 22:21:32,274 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 22:21:32,768 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-29 22:21:32,768 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-29 22:21:32,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 752 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-29 22:21:32,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 22:21:32,833 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 22:21:32,834 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 22:21:32,905 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 22:21:32,905 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-08-29 22:21:32,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [110525781] [2023-08-29 22:21:32,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [110525781] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 22:21:32,905 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-08-29 22:21:32,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2023-08-29 22:21:32,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054147442] [2023-08-29 22:21:32,905 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-08-29 22:21:32,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 22:21:32,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-08-29 22:21:32,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 22:21:32,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-08-29 22:21:33,016 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 622 [2023-08-29 22:21:33,018 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 69 transitions, 299 flow. Second operand has 12 states, 12 states have (on average 253.16666666666666) internal successors, (3038), 12 states have internal predecessors, (3038), 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 22:21:33,018 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 22:21:33,018 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 622 [2023-08-29 22:21:33,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 22:21:36,860 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-08-29 22:21:39,135 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-08-29 22:21:40,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-08-29 22:21:54,276 INFO L130 PetriNetUnfolder]: 230/593 cut-off events. [2023-08-29 22:21:54,276 INFO L131 PetriNetUnfolder]: For 130/130 co-relation queries the response was YES. [2023-08-29 22:21:54,276 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1392 conditions, 593 events. 230/593 cut-off events. For 130/130 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 3267 event pairs, 190 based on Foata normal form. 12/307 useless extension candidates. Maximal degree in co-relation 1179. Up to 462 conditions per place. [2023-08-29 22:21:54,278 INFO L137 encePairwiseOnDemand]: 616/622 looper letters, 78 selfloop transitions, 16 changer transitions 0/102 dead transitions. [2023-08-29 22:21:54,278 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 102 transitions, 787 flow [2023-08-29 22:21:54,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-29 22:21:54,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-29 22:21:54,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 3121 transitions. [2023-08-29 22:21:54,287 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41814040728831725 [2023-08-29 22:21:54,287 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 3121 transitions. [2023-08-29 22:21:54,288 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 3121 transitions. [2023-08-29 22:21:54,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 22:21:54,289 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 3121 transitions. [2023-08-29 22:21:54,293 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 260.0833333333333) internal successors, (3121), 12 states have internal predecessors, (3121), 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 22:21:54,299 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 622.0) internal successors, (8086), 13 states have internal predecessors, (8086), 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 22:21:54,300 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 622.0) internal successors, (8086), 13 states have internal predecessors, (8086), 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 22:21:54,300 INFO L175 Difference]: Start difference. First operand has 74 places, 69 transitions, 299 flow. Second operand 12 states and 3121 transitions. [2023-08-29 22:21:54,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 102 transitions, 787 flow [2023-08-29 22:21:54,302 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 102 transitions, 777 flow, removed 3 selfloop flow, removed 1 redundant places. [2023-08-29 22:21:54,305 INFO L231 Difference]: Finished difference. Result has 91 places, 78 transitions, 452 flow [2023-08-29 22:21:54,305 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=622, PETRI_DIFFERENCE_MINUEND_FLOW=289, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=452, PETRI_PLACES=91, PETRI_TRANSITIONS=78} [2023-08-29 22:21:54,306 INFO L281 CegarLoopForPetriNet]: 75 programPoint places, 16 predicate places. [2023-08-29 22:21:54,306 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 78 transitions, 452 flow [2023-08-29 22:21:54,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 253.16666666666666) internal successors, (3038), 12 states have internal predecessors, (3038), 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 22:21:54,307 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 22:21:54,307 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1] [2023-08-29 22:21:54,341 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 22:21:54,521 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 22:21:54,521 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2023-08-29 22:21:54,521 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 22:21:54,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1264242411, now seen corresponding path program 1 times [2023-08-29 22:21:54,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-29 22:21:54,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [391454344] [2023-08-29 22:21:54,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 22:21:54,522 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 22:21:54,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-29 22:21:54,523 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 22:21:54,525 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 22:21:56,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 22:21:56,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 1716 conjuncts, 12 conjunts are in the unsatisfiable core [2023-08-29 22:21:56,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 22:21:56,405 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 1 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 22:21:56,405 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 22:21:56,740 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 1 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 22:21:56,740 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-08-29 22:21:56,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [391454344] [2023-08-29 22:21:56,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [391454344] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 22:21:56,740 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-08-29 22:21:56,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2023-08-29 22:21:56,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702188221] [2023-08-29 22:21:56,741 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-08-29 22:21:56,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-08-29 22:21:56,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-08-29 22:21:56,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-08-29 22:21:56,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2023-08-29 22:21:57,553 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 622 [2023-08-29 22:21:57,557 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 78 transitions, 452 flow. Second operand has 24 states, 24 states have (on average 253.08333333333334) internal successors, (6074), 24 states have internal predecessors, (6074), 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 22:21:57,557 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 22:21:57,557 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 622 [2023-08-29 22:21:57,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 22:22:01,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-08-29 22:22:06,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-08-29 22:22:07,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-08-29 22:22:09,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-08-29 22:22:11,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-08-29 22:22:16,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-08-29 22:22:21,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-08-29 22:22:26,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-08-29 22:22:27,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-08-29 22:22:33,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-08-29 22:22:36,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-08-29 22:22:41,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-08-29 22:22:46,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15