./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix046.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix046.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8 --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 f69f777f524a62a415fc7cacc9442c44e05883e29c36815b4e0d58199826b331 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 12:41:56,918 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 12:41:56,920 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 12:41:56,933 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 12:41:56,933 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 12:41:56,934 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 12:41:56,935 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 12:41:56,936 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 12:41:56,937 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 12:41:56,937 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 12:41:56,938 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 12:41:56,939 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 12:41:56,939 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 12:41:56,940 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 12:41:56,940 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 12:41:56,941 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 12:41:56,942 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 12:41:56,942 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 12:41:56,943 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 12:41:56,946 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 12:41:56,947 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 12:41:56,948 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 12:41:56,949 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 12:41:56,950 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 12:41:56,951 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 12:41:56,952 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 12:41:56,952 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 12:41:56,953 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 12:41:56,953 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 12:41:56,953 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 12:41:56,954 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 12:41:56,954 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 12:41:56,955 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 12:41:56,955 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 12:41:56,956 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 12:41:56,956 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 12:41:56,956 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 12:41:56,957 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 12:41:56,957 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 12:41:56,957 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 12:41:56,958 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 12:41:56,959 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-12-13 12:41:56,979 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 12:41:56,979 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 12:41:56,980 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 12:41:56,980 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 12:41:56,986 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 12:41:56,987 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 12:41:56,988 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 12:41:56,988 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 12:41:56,988 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 12:41:56,988 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 12:41:56,988 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 12:41:56,988 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 12:41:56,988 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 12:41:56,989 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 12:41:56,989 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 12:41:56,989 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 12:41:56,989 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 12:41:56,989 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 12:41:56,989 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 12:41:56,989 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 12:41:56,989 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 12:41:56,989 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 12:41:56,989 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 12:41:56,990 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 12:41:56,990 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 12:41:56,990 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:41:56,990 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 12:41:56,990 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 12:41:56,990 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 12:41:56,990 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 12:41:56,990 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 12:41:56,990 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 12:41:56,991 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 12:41:56,991 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 12:41:56,991 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f69f777f524a62a415fc7cacc9442c44e05883e29c36815b4e0d58199826b331 [2022-12-13 12:41:57,208 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 12:41:57,228 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 12:41:57,230 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 12:41:57,231 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 12:41:57,232 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 12:41:57,233 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-wmm/mix046.opt.i [2022-12-13 12:41:59,865 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 12:42:00,049 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 12:42:00,050 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/sv-benchmarks/c/pthread-wmm/mix046.opt.i [2022-12-13 12:42:00,060 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/data/58845af0d/a306a719883343189207f971cf18acfa/FLAGcb7f8cc8d [2022-12-13 12:42:00,071 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/data/58845af0d/a306a719883343189207f971cf18acfa [2022-12-13 12:42:00,072 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 12:42:00,073 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 12:42:00,074 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 12:42:00,074 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 12:42:00,077 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 12:42:00,077 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:42:00" (1/1) ... [2022-12-13 12:42:00,078 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cb9be0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:42:00, skipping insertion in model container [2022-12-13 12:42:00,078 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:42:00" (1/1) ... [2022-12-13 12:42:00,083 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 12:42:00,116 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:42:00,243 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/sv-benchmarks/c/pthread-wmm/mix046.opt.i[944,957] [2022-12-13 12:42:00,345 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:00,345 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:00,345 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:00,346 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:00,346 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:00,346 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:00,346 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:00,347 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:00,347 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:00,347 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:00,348 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:00,348 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:00,348 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:00,348 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:00,348 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:00,349 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:00,349 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:00,349 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:00,350 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:00,350 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:00,350 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:00,354 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:00,354 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:00,354 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:00,355 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:00,357 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:00,357 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:00,358 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:00,358 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:00,358 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:00,358 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:00,359 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:00,359 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:00,362 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:00,362 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:00,362 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:00,370 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:00,370 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:00,371 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:00,373 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:00,373 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:00,379 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:00,380 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:42:00,388 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 12:42:00,397 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/sv-benchmarks/c/pthread-wmm/mix046.opt.i[944,957] [2022-12-13 12:42:00,414 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:00,415 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:00,415 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:00,415 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:00,416 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:00,416 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:00,416 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:00,416 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:00,417 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:00,417 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:00,417 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:00,418 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:00,418 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:00,418 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:00,418 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:00,418 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:00,419 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:00,419 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:00,419 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:00,420 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:00,420 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:00,422 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:00,422 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:00,423 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:00,423 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:00,425 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:00,425 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:00,425 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:00,425 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:00,426 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:00,426 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:00,426 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:00,426 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:00,428 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:00,429 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:00,429 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:00,433 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:00,433 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:00,433 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:00,436 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:00,436 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:00,443 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:00,444 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:42:00,484 INFO L208 MainTranslator]: Completed translation [2022-12-13 12:42:00,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:42:00 WrapperNode [2022-12-13 12:42:00,485 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 12:42:00,486 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 12:42:00,486 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 12:42:00,486 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 12:42:00,492 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:42:00" (1/1) ... [2022-12-13 12:42:00,515 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:42:00" (1/1) ... [2022-12-13 12:42:00,541 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 166 [2022-12-13 12:42:00,541 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 12:42:00,542 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 12:42:00,542 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 12:42:00,542 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 12:42:00,550 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:42:00" (1/1) ... [2022-12-13 12:42:00,550 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:42:00" (1/1) ... [2022-12-13 12:42:00,552 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:42:00" (1/1) ... [2022-12-13 12:42:00,552 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:42:00" (1/1) ... [2022-12-13 12:42:00,557 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:42:00" (1/1) ... [2022-12-13 12:42:00,558 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:42:00" (1/1) ... [2022-12-13 12:42:00,559 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:42:00" (1/1) ... [2022-12-13 12:42:00,560 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:42:00" (1/1) ... [2022-12-13 12:42:00,562 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 12:42:00,563 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 12:42:00,563 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 12:42:00,563 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 12:42:00,564 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:42:00" (1/1) ... [2022-12-13 12:42:00,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:42:00,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:42:00,590 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 12:42:00,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 12:42:00,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 12:42:00,620 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 12:42:00,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 12:42:00,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 12:42:00,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 12:42:00,620 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 12:42:00,621 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 12:42:00,621 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 12:42:00,621 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 12:42:00,621 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-13 12:42:00,621 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-13 12:42:00,621 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-13 12:42:00,621 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-13 12:42:00,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 12:42:00,621 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 12:42:00,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 12:42:00,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 12:42:00,622 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 12:42:00,734 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 12:42:00,735 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 12:42:01,001 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 12:42:01,093 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 12:42:01,094 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 12:42:01,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:42:01 BoogieIcfgContainer [2022-12-13 12:42:01,096 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 12:42:01,098 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 12:42:01,098 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 12:42:01,101 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 12:42:01,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 12:42:00" (1/3) ... [2022-12-13 12:42:01,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13e93a7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:42:01, skipping insertion in model container [2022-12-13 12:42:01,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:42:00" (2/3) ... [2022-12-13 12:42:01,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13e93a7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:42:01, skipping insertion in model container [2022-12-13 12:42:01,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:42:01" (3/3) ... [2022-12-13 12:42:01,104 INFO L112 eAbstractionObserver]: Analyzing ICFG mix046.opt.i [2022-12-13 12:42:01,122 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 12:42:01,123 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2022-12-13 12:42:01,123 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 12:42:01,173 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 12:42:01,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 160 places, 149 transitions, 318 flow [2022-12-13 12:42:01,255 INFO L130 PetriNetUnfolder]: 2/145 cut-off events. [2022-12-13 12:42:01,256 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:42:01,261 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 145 events. 2/145 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 103 event pairs, 0 based on Foata normal form. 0/132 useless extension candidates. Maximal degree in co-relation 100. Up to 2 conditions per place. [2022-12-13 12:42:01,261 INFO L82 GeneralOperation]: Start removeDead. Operand has 160 places, 149 transitions, 318 flow [2022-12-13 12:42:01,266 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 156 places, 145 transitions, 302 flow [2022-12-13 12:42:01,269 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 12:42:01,279 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 156 places, 145 transitions, 302 flow [2022-12-13 12:42:01,282 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 156 places, 145 transitions, 302 flow [2022-12-13 12:42:01,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 156 places, 145 transitions, 302 flow [2022-12-13 12:42:01,313 INFO L130 PetriNetUnfolder]: 2/145 cut-off events. [2022-12-13 12:42:01,313 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:42:01,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 145 events. 2/145 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 103 event pairs, 0 based on Foata normal form. 0/132 useless extension candidates. Maximal degree in co-relation 100. Up to 2 conditions per place. [2022-12-13 12:42:01,317 INFO L119 LiptonReduction]: Number of co-enabled transitions 3490 [2022-12-13 12:42:04,802 INFO L134 LiptonReduction]: Checked pairs total: 8889 [2022-12-13 12:42:04,802 INFO L136 LiptonReduction]: Total number of compositions: 141 [2022-12-13 12:42:04,815 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 12:42:04,820 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;@1b1afb59, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 12:42:04,820 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-12-13 12:42:04,822 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 12:42:04,822 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:42:04,822 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:42:04,822 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 12:42:04,823 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 12:42:04,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:42:04,827 INFO L85 PathProgramCache]: Analyzing trace with hash 608, now seen corresponding path program 1 times [2022-12-13 12:42:04,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:42:04,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205821490] [2022-12-13 12:42:04,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:42:04,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:42:04,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:42:04,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:42:04,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:42:04,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205821490] [2022-12-13 12:42:04,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205821490] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:42:04,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:42:04,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 12:42:04,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487143261] [2022-12-13 12:42:04,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:42:04,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 12:42:04,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:42:04,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 12:42:04,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 12:42:04,947 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 290 [2022-12-13 12:42:04,949 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 40 transitions, 92 flow. Second operand has 2 states, 2 states have (on average 136.5) internal successors, (273), 2 states have internal predecessors, (273), 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) [2022-12-13 12:42:04,949 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:42:04,949 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 290 [2022-12-13 12:42:04,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:42:05,683 INFO L130 PetriNetUnfolder]: 5003/6962 cut-off events. [2022-12-13 12:42:05,684 INFO L131 PetriNetUnfolder]: For 35/35 co-relation queries the response was YES. [2022-12-13 12:42:05,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13894 conditions, 6962 events. 5003/6962 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 395. Compared 36701 event pairs, 5003 based on Foata normal form. 216/6166 useless extension candidates. Maximal degree in co-relation 13882. Up to 6829 conditions per place. [2022-12-13 12:42:05,722 INFO L137 encePairwiseOnDemand]: 281/290 looper letters, 27 selfloop transitions, 0 changer transitions 0/31 dead transitions. [2022-12-13 12:42:05,722 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 31 transitions, 128 flow [2022-12-13 12:42:05,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 12:42:05,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 12:42:05,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 308 transitions. [2022-12-13 12:42:05,732 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5310344827586206 [2022-12-13 12:42:05,733 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 308 transitions. [2022-12-13 12:42:05,733 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 308 transitions. [2022-12-13 12:42:05,734 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:42:05,736 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 308 transitions. [2022-12-13 12:42:05,738 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 154.0) internal successors, (308), 2 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:05,742 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 290.0) internal successors, (870), 3 states have internal predecessors, (870), 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) [2022-12-13 12:42:05,742 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 290.0) internal successors, (870), 3 states have internal predecessors, (870), 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) [2022-12-13 12:42:05,743 INFO L175 Difference]: Start difference. First operand has 52 places, 40 transitions, 92 flow. Second operand 2 states and 308 transitions. [2022-12-13 12:42:05,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 31 transitions, 128 flow [2022-12-13 12:42:05,746 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 31 transitions, 124 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 12:42:05,747 INFO L231 Difference]: Finished difference. Result has 41 places, 31 transitions, 70 flow [2022-12-13 12:42:05,749 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=70, PETRI_PLACES=41, PETRI_TRANSITIONS=31} [2022-12-13 12:42:05,752 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -11 predicate places. [2022-12-13 12:42:05,752 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 31 transitions, 70 flow [2022-12-13 12:42:05,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 136.5) internal successors, (273), 2 states have internal predecessors, (273), 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) [2022-12-13 12:42:05,752 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:42:05,752 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:42:05,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 12:42:05,753 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P3Err0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 12:42:05,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:42:05,753 INFO L85 PathProgramCache]: Analyzing trace with hash -2011382923, now seen corresponding path program 1 times [2022-12-13 12:42:05,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:42:05,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615729722] [2022-12-13 12:42:05,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:42:05,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:42:05,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:42:06,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:42:06,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:42:06,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615729722] [2022-12-13 12:42:06,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615729722] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:42:06,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:42:06,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 12:42:06,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998918343] [2022-12-13 12:42:06,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:42:06,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:42:06,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:42:06,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:42:06,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:42:06,037 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 290 [2022-12-13 12:42:06,038 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 31 transitions, 70 flow. Second operand has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 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) [2022-12-13 12:42:06,038 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:42:06,038 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 290 [2022-12-13 12:42:06,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:42:06,585 INFO L130 PetriNetUnfolder]: 4151/6002 cut-off events. [2022-12-13 12:42:06,585 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:42:06,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11791 conditions, 6002 events. 4151/6002 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 33592 event pairs, 743 based on Foata normal form. 0/5449 useless extension candidates. Maximal degree in co-relation 11788. Up to 4561 conditions per place. [2022-12-13 12:42:06,612 INFO L137 encePairwiseOnDemand]: 287/290 looper letters, 34 selfloop transitions, 2 changer transitions 4/44 dead transitions. [2022-12-13 12:42:06,612 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 44 transitions, 176 flow [2022-12-13 12:42:06,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:42:06,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 12:42:06,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 446 transitions. [2022-12-13 12:42:06,616 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5126436781609195 [2022-12-13 12:42:06,616 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 446 transitions. [2022-12-13 12:42:06,616 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 446 transitions. [2022-12-13 12:42:06,617 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:42:06,617 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 446 transitions. [2022-12-13 12:42:06,618 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 states have internal predecessors, (446), 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) [2022-12-13 12:42:06,619 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 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) [2022-12-13 12:42:06,620 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 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) [2022-12-13 12:42:06,620 INFO L175 Difference]: Start difference. First operand has 41 places, 31 transitions, 70 flow. Second operand 3 states and 446 transitions. [2022-12-13 12:42:06,620 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 44 transitions, 176 flow [2022-12-13 12:42:06,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 44 transitions, 176 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 12:42:06,621 INFO L231 Difference]: Finished difference. Result has 42 places, 28 transitions, 68 flow [2022-12-13 12:42:06,621 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=68, PETRI_PLACES=42, PETRI_TRANSITIONS=28} [2022-12-13 12:42:06,621 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -10 predicate places. [2022-12-13 12:42:06,621 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 28 transitions, 68 flow [2022-12-13 12:42:06,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 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) [2022-12-13 12:42:06,622 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:42:06,622 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:42:06,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 12:42:06,622 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 12:42:06,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:42:06,623 INFO L85 PathProgramCache]: Analyzing trace with hash -2017502301, now seen corresponding path program 1 times [2022-12-13 12:42:06,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:42:06,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585137867] [2022-12-13 12:42:06,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:42:06,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:42:06,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:42:07,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:42:07,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:42:07,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585137867] [2022-12-13 12:42:07,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585137867] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:42:07,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:42:07,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 12:42:07,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315304985] [2022-12-13 12:42:07,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:42:07,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 12:42:07,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:42:07,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 12:42:07,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-13 12:42:07,642 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 290 [2022-12-13 12:42:07,643 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 28 transitions, 68 flow. Second operand has 7 states, 7 states have (on average 119.71428571428571) internal successors, (838), 7 states have internal predecessors, (838), 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) [2022-12-13 12:42:07,643 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:42:07,643 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 290 [2022-12-13 12:42:07,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:42:08,047 INFO L130 PetriNetUnfolder]: 2594/3784 cut-off events. [2022-12-13 12:42:08,048 INFO L131 PetriNetUnfolder]: For 162/162 co-relation queries the response was YES. [2022-12-13 12:42:08,052 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7658 conditions, 3784 events. 2594/3784 cut-off events. For 162/162 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 19709 event pairs, 324 based on Foata normal form. 0/3784 useless extension candidates. Maximal degree in co-relation 7654. Up to 2097 conditions per place. [2022-12-13 12:42:08,061 INFO L137 encePairwiseOnDemand]: 284/290 looper letters, 42 selfloop transitions, 5 changer transitions 0/51 dead transitions. [2022-12-13 12:42:08,061 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 51 transitions, 208 flow [2022-12-13 12:42:08,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 12:42:08,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 12:42:08,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 875 transitions. [2022-12-13 12:42:08,064 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43103448275862066 [2022-12-13 12:42:08,064 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 875 transitions. [2022-12-13 12:42:08,064 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 875 transitions. [2022-12-13 12:42:08,064 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:42:08,064 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 875 transitions. [2022-12-13 12:42:08,066 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 125.0) internal successors, (875), 7 states have internal predecessors, (875), 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) [2022-12-13 12:42:08,069 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 290.0) internal successors, (2320), 8 states have internal predecessors, (2320), 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) [2022-12-13 12:42:08,069 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 290.0) internal successors, (2320), 8 states have internal predecessors, (2320), 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) [2022-12-13 12:42:08,070 INFO L175 Difference]: Start difference. First operand has 42 places, 28 transitions, 68 flow. Second operand 7 states and 875 transitions. [2022-12-13 12:42:08,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 51 transitions, 208 flow [2022-12-13 12:42:08,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 51 transitions, 204 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 12:42:08,072 INFO L231 Difference]: Finished difference. Result has 43 places, 27 transitions, 72 flow [2022-12-13 12:42:08,072 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=72, PETRI_PLACES=43, PETRI_TRANSITIONS=27} [2022-12-13 12:42:08,073 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -9 predicate places. [2022-12-13 12:42:08,073 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 27 transitions, 72 flow [2022-12-13 12:42:08,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 119.71428571428571) internal successors, (838), 7 states have internal predecessors, (838), 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) [2022-12-13 12:42:08,073 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:42:08,073 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:42:08,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 12:42:08,074 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 12:42:08,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:42:08,074 INFO L85 PathProgramCache]: Analyzing trace with hash -2017502353, now seen corresponding path program 1 times [2022-12-13 12:42:08,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:42:08,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745404241] [2022-12-13 12:42:08,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:42:08,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:42:08,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:42:08,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:42:08,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:42:08,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745404241] [2022-12-13 12:42:08,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745404241] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:42:08,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:42:08,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:42:08,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833726421] [2022-12-13 12:42:08,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:42:08,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 12:42:08,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:42:08,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 12:42:08,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 12:42:08,424 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 290 [2022-12-13 12:42:08,424 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 27 transitions, 72 flow. Second operand has 5 states, 5 states have (on average 124.4) internal successors, (622), 5 states have internal predecessors, (622), 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) [2022-12-13 12:42:08,425 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:42:08,425 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 290 [2022-12-13 12:42:08,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:42:09,537 INFO L130 PetriNetUnfolder]: 9093/12994 cut-off events. [2022-12-13 12:42:09,537 INFO L131 PetriNetUnfolder]: For 608/608 co-relation queries the response was YES. [2022-12-13 12:42:09,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26471 conditions, 12994 events. 9093/12994 cut-off events. For 608/608 co-relation queries the response was YES. Maximal size of possible extension queue 529. Compared 73407 event pairs, 699 based on Foata normal form. 572/13566 useless extension candidates. Maximal degree in co-relation 26467. Up to 7909 conditions per place. [2022-12-13 12:42:09,570 INFO L137 encePairwiseOnDemand]: 278/290 looper letters, 50 selfloop transitions, 12 changer transitions 39/102 dead transitions. [2022-12-13 12:42:09,570 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 102 transitions, 450 flow [2022-12-13 12:42:09,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 12:42:09,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 12:42:09,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 958 transitions. [2022-12-13 12:42:09,572 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4719211822660099 [2022-12-13 12:42:09,573 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 958 transitions. [2022-12-13 12:42:09,573 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 958 transitions. [2022-12-13 12:42:09,573 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:42:09,573 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 958 transitions. [2022-12-13 12:42:09,574 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 136.85714285714286) internal successors, (958), 7 states have internal predecessors, (958), 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) [2022-12-13 12:42:09,576 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 290.0) internal successors, (2320), 8 states have internal predecessors, (2320), 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) [2022-12-13 12:42:09,577 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 290.0) internal successors, (2320), 8 states have internal predecessors, (2320), 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) [2022-12-13 12:42:09,577 INFO L175 Difference]: Start difference. First operand has 43 places, 27 transitions, 72 flow. Second operand 7 states and 958 transitions. [2022-12-13 12:42:09,577 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 102 transitions, 450 flow [2022-12-13 12:42:09,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 102 transitions, 428 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-12-13 12:42:09,580 INFO L231 Difference]: Finished difference. Result has 49 places, 37 transitions, 159 flow [2022-12-13 12:42:09,580 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=159, PETRI_PLACES=49, PETRI_TRANSITIONS=37} [2022-12-13 12:42:09,580 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -3 predicate places. [2022-12-13 12:42:09,581 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 37 transitions, 159 flow [2022-12-13 12:42:09,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 124.4) internal successors, (622), 5 states have internal predecessors, (622), 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) [2022-12-13 12:42:09,581 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:42:09,581 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:42:09,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 12:42:09,581 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 12:42:09,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:42:09,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1881903104, now seen corresponding path program 1 times [2022-12-13 12:42:09,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:42:09,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197344091] [2022-12-13 12:42:09,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:42:09,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:42:09,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:42:09,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:42:09,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:42:09,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197344091] [2022-12-13 12:42:09,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197344091] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:42:09,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:42:09,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:42:09,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274596446] [2022-12-13 12:42:09,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:42:09,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 12:42:09,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:42:09,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 12:42:09,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 12:42:09,716 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 290 [2022-12-13 12:42:09,718 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 37 transitions, 159 flow. Second operand has 4 states, 4 states have (on average 136.25) internal successors, (545), 4 states have internal predecessors, (545), 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) [2022-12-13 12:42:09,718 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:42:09,718 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 290 [2022-12-13 12:42:09,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:42:10,575 INFO L130 PetriNetUnfolder]: 6370/9275 cut-off events. [2022-12-13 12:42:10,576 INFO L131 PetriNetUnfolder]: For 7177/7310 co-relation queries the response was YES. [2022-12-13 12:42:10,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27333 conditions, 9275 events. 6370/9275 cut-off events. For 7177/7310 co-relation queries the response was YES. Maximal size of possible extension queue 439. Compared 53128 event pairs, 1987 based on Foata normal form. 424/9536 useless extension candidates. Maximal degree in co-relation 27324. Up to 4887 conditions per place. [2022-12-13 12:42:10,617 INFO L137 encePairwiseOnDemand]: 286/290 looper letters, 40 selfloop transitions, 3 changer transitions 24/74 dead transitions. [2022-12-13 12:42:10,617 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 74 transitions, 432 flow [2022-12-13 12:42:10,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 12:42:10,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 12:42:10,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 718 transitions. [2022-12-13 12:42:10,619 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49517241379310345 [2022-12-13 12:42:10,619 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 718 transitions. [2022-12-13 12:42:10,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 718 transitions. [2022-12-13 12:42:10,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:42:10,620 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 718 transitions. [2022-12-13 12:42:10,621 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 143.6) internal successors, (718), 5 states have internal predecessors, (718), 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) [2022-12-13 12:42:10,622 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 290.0) internal successors, (1740), 6 states have internal predecessors, (1740), 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) [2022-12-13 12:42:10,622 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 290.0) internal successors, (1740), 6 states have internal predecessors, (1740), 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) [2022-12-13 12:42:10,623 INFO L175 Difference]: Start difference. First operand has 49 places, 37 transitions, 159 flow. Second operand 5 states and 718 transitions. [2022-12-13 12:42:10,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 74 transitions, 432 flow [2022-12-13 12:42:10,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 74 transitions, 428 flow, removed 2 selfloop flow, removed 2 redundant places. [2022-12-13 12:42:10,675 INFO L231 Difference]: Finished difference. Result has 51 places, 37 transitions, 170 flow [2022-12-13 12:42:10,675 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=170, PETRI_PLACES=51, PETRI_TRANSITIONS=37} [2022-12-13 12:42:10,676 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -1 predicate places. [2022-12-13 12:42:10,676 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 37 transitions, 170 flow [2022-12-13 12:42:10,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 136.25) internal successors, (545), 4 states have internal predecessors, (545), 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) [2022-12-13 12:42:10,677 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:42:10,677 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:42:10,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 12:42:10,677 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 12:42:10,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:42:10,678 INFO L85 PathProgramCache]: Analyzing trace with hash -524865196, now seen corresponding path program 1 times [2022-12-13 12:42:10,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:42:10,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347003915] [2022-12-13 12:42:10,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:42:10,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:42:10,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:42:11,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:42:11,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:42:11,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347003915] [2022-12-13 12:42:11,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347003915] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:42:11,192 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:42:11,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 12:42:11,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640510876] [2022-12-13 12:42:11,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:42:11,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 12:42:11,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:42:11,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 12:42:11,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 12:42:11,214 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 290 [2022-12-13 12:42:11,215 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 37 transitions, 170 flow. Second operand has 6 states, 6 states have (on average 133.5) internal successors, (801), 6 states have internal predecessors, (801), 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) [2022-12-13 12:42:11,215 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:42:11,215 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 290 [2022-12-13 12:42:11,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:42:12,194 INFO L130 PetriNetUnfolder]: 7255/10531 cut-off events. [2022-12-13 12:42:12,195 INFO L131 PetriNetUnfolder]: For 7702/7838 co-relation queries the response was YES. [2022-12-13 12:42:12,210 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31110 conditions, 10531 events. 7255/10531 cut-off events. For 7702/7838 co-relation queries the response was YES. Maximal size of possible extension queue 407. Compared 58505 event pairs, 2114 based on Foata normal form. 371/10750 useless extension candidates. Maximal degree in co-relation 31099. Up to 6804 conditions per place. [2022-12-13 12:42:12,232 INFO L137 encePairwiseOnDemand]: 284/290 looper letters, 54 selfloop transitions, 7 changer transitions 21/88 dead transitions. [2022-12-13 12:42:12,232 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 88 transitions, 524 flow [2022-12-13 12:42:12,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 12:42:12,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 12:42:12,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 851 transitions. [2022-12-13 12:42:12,234 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48908045977011494 [2022-12-13 12:42:12,234 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 851 transitions. [2022-12-13 12:42:12,234 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 851 transitions. [2022-12-13 12:42:12,235 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:42:12,235 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 851 transitions. [2022-12-13 12:42:12,236 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 141.83333333333334) internal successors, (851), 6 states have internal predecessors, (851), 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) [2022-12-13 12:42:12,237 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 290.0) internal successors, (2030), 7 states have internal predecessors, (2030), 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) [2022-12-13 12:42:12,237 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 290.0) internal successors, (2030), 7 states have internal predecessors, (2030), 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) [2022-12-13 12:42:12,237 INFO L175 Difference]: Start difference. First operand has 51 places, 37 transitions, 170 flow. Second operand 6 states and 851 transitions. [2022-12-13 12:42:12,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 88 transitions, 524 flow [2022-12-13 12:42:12,287 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 88 transitions, 510 flow, removed 2 selfloop flow, removed 4 redundant places. [2022-12-13 12:42:12,288 INFO L231 Difference]: Finished difference. Result has 54 places, 43 transitions, 229 flow [2022-12-13 12:42:12,288 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=229, PETRI_PLACES=54, PETRI_TRANSITIONS=43} [2022-12-13 12:42:12,289 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 2 predicate places. [2022-12-13 12:42:12,289 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 43 transitions, 229 flow [2022-12-13 12:42:12,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 133.5) internal successors, (801), 6 states have internal predecessors, (801), 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) [2022-12-13 12:42:12,289 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:42:12,289 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:42:12,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 12:42:12,290 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 12:42:12,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:42:12,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1369012528, now seen corresponding path program 1 times [2022-12-13 12:42:12,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:42:12,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030168633] [2022-12-13 12:42:12,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:42:12,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:42:12,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:42:12,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:42:12,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:42:12,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030168633] [2022-12-13 12:42:12,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030168633] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:42:12,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:42:12,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 12:42:12,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744179125] [2022-12-13 12:42:12,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:42:12,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 12:42:12,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:42:12,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 12:42:12,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 12:42:12,739 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 290 [2022-12-13 12:42:12,740 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 43 transitions, 229 flow. Second operand has 7 states, 7 states have (on average 130.28571428571428) internal successors, (912), 7 states have internal predecessors, (912), 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) [2022-12-13 12:42:12,740 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:42:12,740 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 290 [2022-12-13 12:42:12,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:42:13,918 INFO L130 PetriNetUnfolder]: 7613/10950 cut-off events. [2022-12-13 12:42:13,919 INFO L131 PetriNetUnfolder]: For 11150/11470 co-relation queries the response was YES. [2022-12-13 12:42:13,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35280 conditions, 10950 events. 7613/10950 cut-off events. For 11150/11470 co-relation queries the response was YES. Maximal size of possible extension queue 422. Compared 60618 event pairs, 1666 based on Foata normal form. 273/11005 useless extension candidates. Maximal degree in co-relation 35267. Up to 7261 conditions per place. [2022-12-13 12:42:13,967 INFO L137 encePairwiseOnDemand]: 282/290 looper letters, 58 selfloop transitions, 18 changer transitions 19/101 dead transitions. [2022-12-13 12:42:13,968 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 101 transitions, 670 flow [2022-12-13 12:42:13,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 12:42:13,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 12:42:13,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 966 transitions. [2022-12-13 12:42:13,970 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47586206896551725 [2022-12-13 12:42:13,970 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 966 transitions. [2022-12-13 12:42:13,970 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 966 transitions. [2022-12-13 12:42:13,971 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:42:13,971 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 966 transitions. [2022-12-13 12:42:13,973 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 138.0) internal successors, (966), 7 states have internal predecessors, (966), 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) [2022-12-13 12:42:13,975 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 290.0) internal successors, (2320), 8 states have internal predecessors, (2320), 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) [2022-12-13 12:42:13,975 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 290.0) internal successors, (2320), 8 states have internal predecessors, (2320), 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) [2022-12-13 12:42:13,975 INFO L175 Difference]: Start difference. First operand has 54 places, 43 transitions, 229 flow. Second operand 7 states and 966 transitions. [2022-12-13 12:42:13,975 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 101 transitions, 670 flow [2022-12-13 12:42:14,001 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 101 transitions, 668 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-12-13 12:42:14,003 INFO L231 Difference]: Finished difference. Result has 61 places, 55 transitions, 386 flow [2022-12-13 12:42:14,003 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=386, PETRI_PLACES=61, PETRI_TRANSITIONS=55} [2022-12-13 12:42:14,003 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 9 predicate places. [2022-12-13 12:42:14,003 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 55 transitions, 386 flow [2022-12-13 12:42:14,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 130.28571428571428) internal successors, (912), 7 states have internal predecessors, (912), 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) [2022-12-13 12:42:14,004 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:42:14,004 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:42:14,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 12:42:14,004 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 12:42:14,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:42:14,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1086658428, now seen corresponding path program 2 times [2022-12-13 12:42:14,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:42:14,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586233426] [2022-12-13 12:42:14,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:42:14,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:42:14,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:42:14,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:42:14,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:42:14,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586233426] [2022-12-13 12:42:14,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586233426] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:42:14,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:42:14,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 12:42:14,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282514544] [2022-12-13 12:42:14,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:42:14,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 12:42:14,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:42:14,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 12:42:14,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-13 12:42:14,718 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 290 [2022-12-13 12:42:14,719 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 55 transitions, 386 flow. Second operand has 8 states, 8 states have (on average 121.0) internal successors, (968), 8 states have internal predecessors, (968), 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) [2022-12-13 12:42:14,719 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:42:14,719 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 290 [2022-12-13 12:42:14,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:42:16,034 INFO L130 PetriNetUnfolder]: 9391/13008 cut-off events. [2022-12-13 12:42:16,034 INFO L131 PetriNetUnfolder]: For 23822/23822 co-relation queries the response was YES. [2022-12-13 12:42:16,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48102 conditions, 13008 events. 9391/13008 cut-off events. For 23822/23822 co-relation queries the response was YES. Maximal size of possible extension queue 393. Compared 63713 event pairs, 1171 based on Foata normal form. 288/13296 useless extension candidates. Maximal degree in co-relation 48085. Up to 7061 conditions per place. [2022-12-13 12:42:16,079 INFO L137 encePairwiseOnDemand]: 279/290 looper letters, 103 selfloop transitions, 30 changer transitions 29/162 dead transitions. [2022-12-13 12:42:16,079 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 162 transitions, 1271 flow [2022-12-13 12:42:16,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 12:42:16,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 12:42:16,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1306 transitions. [2022-12-13 12:42:16,082 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4503448275862069 [2022-12-13 12:42:16,082 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1306 transitions. [2022-12-13 12:42:16,082 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1306 transitions. [2022-12-13 12:42:16,082 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:42:16,082 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1306 transitions. [2022-12-13 12:42:16,084 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 130.6) internal successors, (1306), 10 states have internal predecessors, (1306), 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) [2022-12-13 12:42:16,088 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 290.0) internal successors, (3190), 11 states have internal predecessors, (3190), 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) [2022-12-13 12:42:16,089 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 290.0) internal successors, (3190), 11 states have internal predecessors, (3190), 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) [2022-12-13 12:42:16,089 INFO L175 Difference]: Start difference. First operand has 61 places, 55 transitions, 386 flow. Second operand 10 states and 1306 transitions. [2022-12-13 12:42:16,089 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 162 transitions, 1271 flow [2022-12-13 12:42:16,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 162 transitions, 1244 flow, removed 7 selfloop flow, removed 2 redundant places. [2022-12-13 12:42:16,147 INFO L231 Difference]: Finished difference. Result has 72 places, 69 transitions, 614 flow [2022-12-13 12:42:16,148 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=361, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=614, PETRI_PLACES=72, PETRI_TRANSITIONS=69} [2022-12-13 12:42:16,148 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 20 predicate places. [2022-12-13 12:42:16,148 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 69 transitions, 614 flow [2022-12-13 12:42:16,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 121.0) internal successors, (968), 8 states have internal predecessors, (968), 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) [2022-12-13 12:42:16,149 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:42:16,149 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:42:16,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 12:42:16,149 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 12:42:16,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:42:16,150 INFO L85 PathProgramCache]: Analyzing trace with hash -576398267, now seen corresponding path program 1 times [2022-12-13 12:42:16,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:42:16,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270684279] [2022-12-13 12:42:16,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:42:16,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:42:16,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:42:16,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:42:16,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:42:16,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270684279] [2022-12-13 12:42:16,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270684279] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:42:16,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:42:16,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 12:42:16,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594418526] [2022-12-13 12:42:16,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:42:16,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 12:42:16,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:42:16,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 12:42:16,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 12:42:16,530 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 290 [2022-12-13 12:42:16,531 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 69 transitions, 614 flow. Second operand has 7 states, 7 states have (on average 133.42857142857142) internal successors, (934), 7 states have internal predecessors, (934), 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) [2022-12-13 12:42:16,531 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:42:16,531 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 290 [2022-12-13 12:42:16,531 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:42:18,379 INFO L130 PetriNetUnfolder]: 10060/14547 cut-off events. [2022-12-13 12:42:18,380 INFO L131 PetriNetUnfolder]: For 58468/59029 co-relation queries the response was YES. [2022-12-13 12:42:18,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61542 conditions, 14547 events. 10060/14547 cut-off events. For 58468/59029 co-relation queries the response was YES. Maximal size of possible extension queue 647. Compared 86475 event pairs, 3516 based on Foata normal form. 416/14606 useless extension candidates. Maximal degree in co-relation 61520. Up to 6765 conditions per place. [2022-12-13 12:42:18,454 INFO L137 encePairwiseOnDemand]: 283/290 looper letters, 78 selfloop transitions, 24 changer transitions 14/125 dead transitions. [2022-12-13 12:42:18,454 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 125 transitions, 1307 flow [2022-12-13 12:42:18,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 12:42:18,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 12:42:18,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 982 transitions. [2022-12-13 12:42:18,457 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.483743842364532 [2022-12-13 12:42:18,457 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 982 transitions. [2022-12-13 12:42:18,457 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 982 transitions. [2022-12-13 12:42:18,457 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:42:18,457 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 982 transitions. [2022-12-13 12:42:18,459 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 140.28571428571428) internal successors, (982), 7 states have internal predecessors, (982), 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) [2022-12-13 12:42:18,461 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 290.0) internal successors, (2320), 8 states have internal predecessors, (2320), 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) [2022-12-13 12:42:18,461 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 290.0) internal successors, (2320), 8 states have internal predecessors, (2320), 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) [2022-12-13 12:42:18,461 INFO L175 Difference]: Start difference. First operand has 72 places, 69 transitions, 614 flow. Second operand 7 states and 982 transitions. [2022-12-13 12:42:18,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 125 transitions, 1307 flow [2022-12-13 12:42:18,695 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 125 transitions, 1155 flow, removed 72 selfloop flow, removed 5 redundant places. [2022-12-13 12:42:18,696 INFO L231 Difference]: Finished difference. Result has 75 places, 82 transitions, 788 flow [2022-12-13 12:42:18,697 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=540, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=788, PETRI_PLACES=75, PETRI_TRANSITIONS=82} [2022-12-13 12:42:18,697 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 23 predicate places. [2022-12-13 12:42:18,697 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 82 transitions, 788 flow [2022-12-13 12:42:18,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 133.42857142857142) internal successors, (934), 7 states have internal predecessors, (934), 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) [2022-12-13 12:42:18,698 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:42:18,698 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:42:18,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 12:42:18,698 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 12:42:18,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:42:18,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1415297565, now seen corresponding path program 2 times [2022-12-13 12:42:18,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:42:18,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030495609] [2022-12-13 12:42:18,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:42:18,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:42:18,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:42:19,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:42:19,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:42:19,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030495609] [2022-12-13 12:42:19,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030495609] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:42:19,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:42:19,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 12:42:19,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634726573] [2022-12-13 12:42:19,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:42:19,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 12:42:19,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:42:19,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 12:42:19,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-12-13 12:42:19,159 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 290 [2022-12-13 12:42:19,160 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 82 transitions, 788 flow. Second operand has 8 states, 8 states have (on average 133.125) internal successors, (1065), 8 states have internal predecessors, (1065), 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) [2022-12-13 12:42:19,160 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:42:19,160 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 290 [2022-12-13 12:42:19,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:42:20,840 INFO L130 PetriNetUnfolder]: 11154/16234 cut-off events. [2022-12-13 12:42:20,840 INFO L131 PetriNetUnfolder]: For 63354/64409 co-relation queries the response was YES. [2022-12-13 12:42:20,877 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69886 conditions, 16234 events. 11154/16234 cut-off events. For 63354/64409 co-relation queries the response was YES. Maximal size of possible extension queue 786. Compared 99070 event pairs, 2336 based on Foata normal form. 317/16193 useless extension candidates. Maximal degree in co-relation 69863. Up to 10479 conditions per place. [2022-12-13 12:42:20,922 INFO L137 encePairwiseOnDemand]: 283/290 looper letters, 84 selfloop transitions, 26 changer transitions 14/133 dead transitions. [2022-12-13 12:42:20,922 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 133 transitions, 1345 flow [2022-12-13 12:42:20,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 12:42:20,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 12:42:20,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 985 transitions. [2022-12-13 12:42:20,924 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4852216748768473 [2022-12-13 12:42:20,924 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 985 transitions. [2022-12-13 12:42:20,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 985 transitions. [2022-12-13 12:42:20,925 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:42:20,925 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 985 transitions. [2022-12-13 12:42:20,926 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 140.71428571428572) internal successors, (985), 7 states have internal predecessors, (985), 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) [2022-12-13 12:42:20,928 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 290.0) internal successors, (2320), 8 states have internal predecessors, (2320), 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) [2022-12-13 12:42:20,928 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 290.0) internal successors, (2320), 8 states have internal predecessors, (2320), 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) [2022-12-13 12:42:20,928 INFO L175 Difference]: Start difference. First operand has 75 places, 82 transitions, 788 flow. Second operand 7 states and 985 transitions. [2022-12-13 12:42:20,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 133 transitions, 1345 flow [2022-12-13 12:42:21,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 133 transitions, 1322 flow, removed 11 selfloop flow, removed 3 redundant places. [2022-12-13 12:42:21,137 INFO L231 Difference]: Finished difference. Result has 79 places, 90 transitions, 975 flow [2022-12-13 12:42:21,137 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=769, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=975, PETRI_PLACES=79, PETRI_TRANSITIONS=90} [2022-12-13 12:42:21,138 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 27 predicate places. [2022-12-13 12:42:21,138 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 90 transitions, 975 flow [2022-12-13 12:42:21,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 133.125) internal successors, (1065), 8 states have internal predecessors, (1065), 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) [2022-12-13 12:42:21,138 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:42:21,139 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:42:21,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 12:42:21,139 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 12:42:21,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:42:21,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1199457331, now seen corresponding path program 3 times [2022-12-13 12:42:21,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:42:21,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128361958] [2022-12-13 12:42:21,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:42:21,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:42:21,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:42:21,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:42:21,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:42:21,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128361958] [2022-12-13 12:42:21,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128361958] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:42:21,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:42:21,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 12:42:21,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333736670] [2022-12-13 12:42:21,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:42:21,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 12:42:21,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:42:21,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 12:42:21,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-13 12:42:21,832 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 290 [2022-12-13 12:42:21,833 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 90 transitions, 975 flow. Second operand has 8 states, 8 states have (on average 134.125) internal successors, (1073), 8 states have internal predecessors, (1073), 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) [2022-12-13 12:42:21,833 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:42:21,833 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 290 [2022-12-13 12:42:21,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:42:23,792 INFO L130 PetriNetUnfolder]: 10801/15733 cut-off events. [2022-12-13 12:42:23,792 INFO L131 PetriNetUnfolder]: For 66779/67626 co-relation queries the response was YES. [2022-12-13 12:42:23,842 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69170 conditions, 15733 events. 10801/15733 cut-off events. For 66779/67626 co-relation queries the response was YES. Maximal size of possible extension queue 780. Compared 95575 event pairs, 2268 based on Foata normal form. 301/15744 useless extension candidates. Maximal degree in co-relation 69146. Up to 6595 conditions per place. [2022-12-13 12:42:23,899 INFO L137 encePairwiseOnDemand]: 284/290 looper letters, 79 selfloop transitions, 34 changer transitions 15/137 dead transitions. [2022-12-13 12:42:23,900 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 137 transitions, 1477 flow [2022-12-13 12:42:23,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 12:42:23,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 12:42:23,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 992 transitions. [2022-12-13 12:42:23,902 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4886699507389163 [2022-12-13 12:42:23,903 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 992 transitions. [2022-12-13 12:42:23,903 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 992 transitions. [2022-12-13 12:42:23,903 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:42:23,903 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 992 transitions. [2022-12-13 12:42:23,905 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 141.71428571428572) internal successors, (992), 7 states have internal predecessors, (992), 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) [2022-12-13 12:42:23,907 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 290.0) internal successors, (2320), 8 states have internal predecessors, (2320), 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) [2022-12-13 12:42:23,907 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 290.0) internal successors, (2320), 8 states have internal predecessors, (2320), 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) [2022-12-13 12:42:23,907 INFO L175 Difference]: Start difference. First operand has 79 places, 90 transitions, 975 flow. Second operand 7 states and 992 transitions. [2022-12-13 12:42:23,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 137 transitions, 1477 flow [2022-12-13 12:42:24,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 137 transitions, 1415 flow, removed 16 selfloop flow, removed 5 redundant places. [2022-12-13 12:42:24,232 INFO L231 Difference]: Finished difference. Result has 81 places, 90 transitions, 1029 flow [2022-12-13 12:42:24,233 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=921, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1029, PETRI_PLACES=81, PETRI_TRANSITIONS=90} [2022-12-13 12:42:24,233 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 29 predicate places. [2022-12-13 12:42:24,233 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 90 transitions, 1029 flow [2022-12-13 12:42:24,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 134.125) internal successors, (1073), 8 states have internal predecessors, (1073), 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) [2022-12-13 12:42:24,234 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:42:24,234 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:42:24,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 12:42:24,234 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 12:42:24,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:42:24,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1565171013, now seen corresponding path program 1 times [2022-12-13 12:42:24,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:42:24,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126081027] [2022-12-13 12:42:24,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:42:24,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:42:24,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:42:24,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:42:24,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:42:24,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126081027] [2022-12-13 12:42:24,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126081027] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:42:24,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:42:24,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:42:24,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157451188] [2022-12-13 12:42:24,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:42:24,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:42:24,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:42:24,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:42:24,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:42:24,378 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 290 [2022-12-13 12:42:24,379 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 90 transitions, 1029 flow. Second operand has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 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) [2022-12-13 12:42:24,379 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:42:24,379 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 290 [2022-12-13 12:42:24,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:42:25,473 INFO L130 PetriNetUnfolder]: 6378/9545 cut-off events. [2022-12-13 12:42:25,473 INFO L131 PetriNetUnfolder]: For 54956/55830 co-relation queries the response was YES. [2022-12-13 12:42:25,511 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44241 conditions, 9545 events. 6378/9545 cut-off events. For 54956/55830 co-relation queries the response was YES. Maximal size of possible extension queue 596. Compared 58596 event pairs, 1567 based on Foata normal form. 348/9600 useless extension candidates. Maximal degree in co-relation 44216. Up to 8089 conditions per place. [2022-12-13 12:42:25,551 INFO L137 encePairwiseOnDemand]: 284/290 looper letters, 117 selfloop transitions, 5 changer transitions 0/134 dead transitions. [2022-12-13 12:42:25,552 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 134 transitions, 1755 flow [2022-12-13 12:42:25,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:42:25,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 12:42:25,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 434 transitions. [2022-12-13 12:42:25,554 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49885057471264366 [2022-12-13 12:42:25,554 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 434 transitions. [2022-12-13 12:42:25,554 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 434 transitions. [2022-12-13 12:42:25,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:42:25,555 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 434 transitions. [2022-12-13 12:42:25,556 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 144.66666666666666) internal successors, (434), 3 states have internal predecessors, (434), 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) [2022-12-13 12:42:25,558 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 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) [2022-12-13 12:42:25,559 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 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) [2022-12-13 12:42:25,559 INFO L175 Difference]: Start difference. First operand has 81 places, 90 transitions, 1029 flow. Second operand 3 states and 434 transitions. [2022-12-13 12:42:25,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 134 transitions, 1755 flow [2022-12-13 12:42:25,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 134 transitions, 1617 flow, removed 6 selfloop flow, removed 7 redundant places. [2022-12-13 12:42:25,649 INFO L231 Difference]: Finished difference. Result has 75 places, 94 transitions, 970 flow [2022-12-13 12:42:25,649 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=937, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=970, PETRI_PLACES=75, PETRI_TRANSITIONS=94} [2022-12-13 12:42:25,650 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 23 predicate places. [2022-12-13 12:42:25,650 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 94 transitions, 970 flow [2022-12-13 12:42:25,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 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) [2022-12-13 12:42:25,650 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:42:25,651 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:42:25,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 12:42:25,651 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 12:42:25,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:42:25,651 INFO L85 PathProgramCache]: Analyzing trace with hash -186562641, now seen corresponding path program 1 times [2022-12-13 12:42:25,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:42:25,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512868521] [2022-12-13 12:42:25,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:42:25,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:42:25,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:42:25,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:42:25,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:42:25,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512868521] [2022-12-13 12:42:25,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512868521] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:42:25,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:42:25,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:42:25,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723195260] [2022-12-13 12:42:25,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:42:25,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 12:42:25,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:42:25,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 12:42:25,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 12:42:25,781 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 290 [2022-12-13 12:42:25,781 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 94 transitions, 970 flow. Second operand has 4 states, 4 states have (on average 135.25) internal successors, (541), 4 states have internal predecessors, (541), 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) [2022-12-13 12:42:25,782 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:42:25,782 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 290 [2022-12-13 12:42:25,782 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:42:26,360 INFO L130 PetriNetUnfolder]: 3168/5029 cut-off events. [2022-12-13 12:42:26,360 INFO L131 PetriNetUnfolder]: For 22368/22932 co-relation queries the response was YES. [2022-12-13 12:42:26,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24024 conditions, 5029 events. 3168/5029 cut-off events. For 22368/22932 co-relation queries the response was YES. Maximal size of possible extension queue 261. Compared 29859 event pairs, 567 based on Foata normal form. 530/5407 useless extension candidates. Maximal degree in co-relation 24001. Up to 2797 conditions per place. [2022-12-13 12:42:26,383 INFO L137 encePairwiseOnDemand]: 284/290 looper letters, 149 selfloop transitions, 9 changer transitions 0/170 dead transitions. [2022-12-13 12:42:26,383 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 170 transitions, 2069 flow [2022-12-13 12:42:26,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 12:42:26,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 12:42:26,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 580 transitions. [2022-12-13 12:42:26,384 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5 [2022-12-13 12:42:26,385 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 580 transitions. [2022-12-13 12:42:26,385 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 580 transitions. [2022-12-13 12:42:26,385 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:42:26,385 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 580 transitions. [2022-12-13 12:42:26,386 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 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) [2022-12-13 12:42:26,386 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 290.0) internal successors, (1450), 5 states have internal predecessors, (1450), 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) [2022-12-13 12:42:26,387 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 290.0) internal successors, (1450), 5 states have internal predecessors, (1450), 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) [2022-12-13 12:42:26,387 INFO L175 Difference]: Start difference. First operand has 75 places, 94 transitions, 970 flow. Second operand 4 states and 580 transitions. [2022-12-13 12:42:26,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 170 transitions, 2069 flow [2022-12-13 12:42:26,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 170 transitions, 2064 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 12:42:26,406 INFO L231 Difference]: Finished difference. Result has 78 places, 92 transitions, 934 flow [2022-12-13 12:42:26,406 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=882, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=934, PETRI_PLACES=78, PETRI_TRANSITIONS=92} [2022-12-13 12:42:26,406 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 26 predicate places. [2022-12-13 12:42:26,406 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 92 transitions, 934 flow [2022-12-13 12:42:26,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 135.25) internal successors, (541), 4 states have internal predecessors, (541), 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) [2022-12-13 12:42:26,407 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:42:26,407 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:42:26,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 12:42:26,407 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 12:42:26,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:42:26,408 INFO L85 PathProgramCache]: Analyzing trace with hash -585975325, now seen corresponding path program 1 times [2022-12-13 12:42:26,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:42:26,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066806702] [2022-12-13 12:42:26,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:42:26,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:42:26,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:42:26,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:42:26,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:42:26,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066806702] [2022-12-13 12:42:26,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066806702] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:42:26,658 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:42:26,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 12:42:26,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055599843] [2022-12-13 12:42:26,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:42:26,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 12:42:26,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:42:26,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 12:42:26,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 12:42:26,705 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 290 [2022-12-13 12:42:26,706 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 92 transitions, 934 flow. Second operand has 5 states, 5 states have (on average 126.0) internal successors, (630), 5 states have internal predecessors, (630), 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) [2022-12-13 12:42:26,706 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:42:26,706 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 290 [2022-12-13 12:42:26,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:42:27,621 INFO L130 PetriNetUnfolder]: 5129/8026 cut-off events. [2022-12-13 12:42:27,621 INFO L131 PetriNetUnfolder]: For 33662/33816 co-relation queries the response was YES. [2022-12-13 12:42:27,637 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40432 conditions, 8026 events. 5129/8026 cut-off events. For 33662/33816 co-relation queries the response was YES. Maximal size of possible extension queue 346. Compared 47230 event pairs, 869 based on Foata normal form. 134/8133 useless extension candidates. Maximal degree in co-relation 40408. Up to 4027 conditions per place. [2022-12-13 12:42:27,650 INFO L137 encePairwiseOnDemand]: 283/290 looper letters, 93 selfloop transitions, 9 changer transitions 64/169 dead transitions. [2022-12-13 12:42:27,650 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 169 transitions, 1942 flow [2022-12-13 12:42:27,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 12:42:27,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 12:42:27,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 807 transitions. [2022-12-13 12:42:27,651 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46379310344827585 [2022-12-13 12:42:27,652 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 807 transitions. [2022-12-13 12:42:27,652 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 807 transitions. [2022-12-13 12:42:27,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:42:27,652 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 807 transitions. [2022-12-13 12:42:27,653 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 134.5) internal successors, (807), 6 states have internal predecessors, (807), 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) [2022-12-13 12:42:27,654 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 290.0) internal successors, (2030), 7 states have internal predecessors, (2030), 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) [2022-12-13 12:42:27,654 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 290.0) internal successors, (2030), 7 states have internal predecessors, (2030), 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) [2022-12-13 12:42:27,654 INFO L175 Difference]: Start difference. First operand has 78 places, 92 transitions, 934 flow. Second operand 6 states and 807 transitions. [2022-12-13 12:42:27,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 169 transitions, 1942 flow [2022-12-13 12:42:27,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 169 transitions, 1908 flow, removed 8 selfloop flow, removed 2 redundant places. [2022-12-13 12:42:27,707 INFO L231 Difference]: Finished difference. Result has 85 places, 74 transitions, 727 flow [2022-12-13 12:42:27,708 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=916, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=727, PETRI_PLACES=85, PETRI_TRANSITIONS=74} [2022-12-13 12:42:27,708 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 33 predicate places. [2022-12-13 12:42:27,708 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 74 transitions, 727 flow [2022-12-13 12:42:27,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 126.0) internal successors, (630), 5 states have internal predecessors, (630), 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) [2022-12-13 12:42:27,708 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:42:27,708 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:42:27,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 12:42:27,709 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 12:42:27,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:42:27,709 INFO L85 PathProgramCache]: Analyzing trace with hash -520776113, now seen corresponding path program 1 times [2022-12-13 12:42:27,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:42:27,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763060109] [2022-12-13 12:42:27,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:42:27,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:42:27,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:42:27,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:42:27,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:42:27,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763060109] [2022-12-13 12:42:27,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763060109] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:42:27,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:42:27,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 12:42:27,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576656297] [2022-12-13 12:42:27,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:42:27,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 12:42:27,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:42:27,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 12:42:27,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 12:42:27,995 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 290 [2022-12-13 12:42:27,996 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 74 transitions, 727 flow. Second operand has 6 states, 6 states have (on average 123.5) internal successors, (741), 6 states have internal predecessors, (741), 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) [2022-12-13 12:42:27,997 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:42:27,997 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 290 [2022-12-13 12:42:27,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:42:29,462 INFO L130 PetriNetUnfolder]: 6137/9851 cut-off events. [2022-12-13 12:42:29,462 INFO L131 PetriNetUnfolder]: For 45323/45478 co-relation queries the response was YES. [2022-12-13 12:42:29,489 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49432 conditions, 9851 events. 6137/9851 cut-off events. For 45323/45478 co-relation queries the response was YES. Maximal size of possible extension queue 479. Compared 64249 event pairs, 704 based on Foata normal form. 153/9973 useless extension candidates. Maximal degree in co-relation 49404. Up to 4651 conditions per place. [2022-12-13 12:42:29,501 INFO L137 encePairwiseOnDemand]: 277/290 looper letters, 103 selfloop transitions, 20 changer transitions 91/217 dead transitions. [2022-12-13 12:42:29,502 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 217 transitions, 2378 flow [2022-12-13 12:42:29,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 12:42:29,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 12:42:29,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 948 transitions. [2022-12-13 12:42:29,504 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4669950738916256 [2022-12-13 12:42:29,504 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 948 transitions. [2022-12-13 12:42:29,504 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 948 transitions. [2022-12-13 12:42:29,504 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:42:29,504 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 948 transitions. [2022-12-13 12:42:29,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 135.42857142857142) internal successors, (948), 7 states have internal predecessors, (948), 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) [2022-12-13 12:42:29,507 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 290.0) internal successors, (2320), 8 states have internal predecessors, (2320), 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) [2022-12-13 12:42:29,508 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 290.0) internal successors, (2320), 8 states have internal predecessors, (2320), 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) [2022-12-13 12:42:29,508 INFO L175 Difference]: Start difference. First operand has 85 places, 74 transitions, 727 flow. Second operand 7 states and 948 transitions. [2022-12-13 12:42:29,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 217 transitions, 2378 flow [2022-12-13 12:42:29,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 217 transitions, 2314 flow, removed 32 selfloop flow, removed 4 redundant places. [2022-12-13 12:42:29,629 INFO L231 Difference]: Finished difference. Result has 86 places, 75 transitions, 754 flow [2022-12-13 12:42:29,629 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=701, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=754, PETRI_PLACES=86, PETRI_TRANSITIONS=75} [2022-12-13 12:42:29,629 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 34 predicate places. [2022-12-13 12:42:29,629 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 75 transitions, 754 flow [2022-12-13 12:42:29,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 123.5) internal successors, (741), 6 states have internal predecessors, (741), 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) [2022-12-13 12:42:29,630 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:42:29,630 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:42:29,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 12:42:29,630 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 12:42:29,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:42:29,630 INFO L85 PathProgramCache]: Analyzing trace with hash 881968058, now seen corresponding path program 1 times [2022-12-13 12:42:29,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:42:29,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054253114] [2022-12-13 12:42:29,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:42:29,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:42:29,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:42:29,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:42:29,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:42:29,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054253114] [2022-12-13 12:42:29,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054253114] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:42:29,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:42:29,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 12:42:29,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147903115] [2022-12-13 12:42:29,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:42:29,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 12:42:29,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:42:29,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 12:42:29,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-13 12:42:29,731 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 290 [2022-12-13 12:42:29,732 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 75 transitions, 754 flow. Second operand has 5 states, 5 states have (on average 134.8) internal successors, (674), 5 states have internal predecessors, (674), 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) [2022-12-13 12:42:29,732 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:42:29,732 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 290 [2022-12-13 12:42:29,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:42:30,157 INFO L130 PetriNetUnfolder]: 2199/3786 cut-off events. [2022-12-13 12:42:30,158 INFO L131 PetriNetUnfolder]: For 18977/19284 co-relation queries the response was YES. [2022-12-13 12:42:30,166 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18008 conditions, 3786 events. 2199/3786 cut-off events. For 18977/19284 co-relation queries the response was YES. Maximal size of possible extension queue 268. Compared 24495 event pairs, 282 based on Foata normal form. 497/4221 useless extension candidates. Maximal degree in co-relation 17980. Up to 1292 conditions per place. [2022-12-13 12:42:30,171 INFO L137 encePairwiseOnDemand]: 284/290 looper letters, 104 selfloop transitions, 13 changer transitions 17/146 dead transitions. [2022-12-13 12:42:30,171 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 146 transitions, 1733 flow [2022-12-13 12:42:30,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 12:42:30,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 12:42:30,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 722 transitions. [2022-12-13 12:42:30,172 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4979310344827586 [2022-12-13 12:42:30,172 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 722 transitions. [2022-12-13 12:42:30,172 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 722 transitions. [2022-12-13 12:42:30,173 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:42:30,173 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 722 transitions. [2022-12-13 12:42:30,173 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 144.4) internal successors, (722), 5 states have internal predecessors, (722), 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) [2022-12-13 12:42:30,174 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 290.0) internal successors, (1740), 6 states have internal predecessors, (1740), 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) [2022-12-13 12:42:30,175 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 290.0) internal successors, (1740), 6 states have internal predecessors, (1740), 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) [2022-12-13 12:42:30,175 INFO L175 Difference]: Start difference. First operand has 86 places, 75 transitions, 754 flow. Second operand 5 states and 722 transitions. [2022-12-13 12:42:30,175 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 146 transitions, 1733 flow [2022-12-13 12:42:30,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 146 transitions, 1673 flow, removed 7 selfloop flow, removed 6 redundant places. [2022-12-13 12:42:30,200 INFO L231 Difference]: Finished difference. Result has 83 places, 71 transitions, 675 flow [2022-12-13 12:42:30,201 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=650, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=675, PETRI_PLACES=83, PETRI_TRANSITIONS=71} [2022-12-13 12:42:30,201 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 31 predicate places. [2022-12-13 12:42:30,201 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 71 transitions, 675 flow [2022-12-13 12:42:30,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 134.8) internal successors, (674), 5 states have internal predecessors, (674), 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) [2022-12-13 12:42:30,201 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:42:30,201 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:42:30,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 12:42:30,202 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 12:42:30,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:42:30,202 INFO L85 PathProgramCache]: Analyzing trace with hash -917997938, now seen corresponding path program 1 times [2022-12-13 12:42:30,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:42:30,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809299113] [2022-12-13 12:42:30,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:42:30,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:42:30,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:42:30,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:42:30,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:42:30,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809299113] [2022-12-13 12:42:30,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809299113] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:42:30,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:42:30,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 12:42:30,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665164075] [2022-12-13 12:42:30,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:42:30,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 12:42:30,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:42:30,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 12:42:30,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 12:42:30,490 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 290 [2022-12-13 12:42:30,491 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 71 transitions, 675 flow. Second operand has 6 states, 6 states have (on average 124.0) internal successors, (744), 6 states have internal predecessors, (744), 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) [2022-12-13 12:42:30,491 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:42:30,491 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 290 [2022-12-13 12:42:30,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:42:31,219 INFO L130 PetriNetUnfolder]: 3132/5398 cut-off events. [2022-12-13 12:42:31,219 INFO L131 PetriNetUnfolder]: For 27841/27911 co-relation queries the response was YES. [2022-12-13 12:42:31,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28161 conditions, 5398 events. 3132/5398 cut-off events. For 27841/27911 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 35346 event pairs, 559 based on Foata normal form. 14/5388 useless extension candidates. Maximal degree in co-relation 28135. Up to 2061 conditions per place. [2022-12-13 12:42:31,235 INFO L137 encePairwiseOnDemand]: 278/290 looper letters, 104 selfloop transitions, 18 changer transitions 62/187 dead transitions. [2022-12-13 12:42:31,235 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 187 transitions, 2120 flow [2022-12-13 12:42:31,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 12:42:31,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 12:42:31,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 933 transitions. [2022-12-13 12:42:31,237 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45960591133004924 [2022-12-13 12:42:31,237 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 933 transitions. [2022-12-13 12:42:31,237 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 933 transitions. [2022-12-13 12:42:31,238 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:42:31,238 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 933 transitions. [2022-12-13 12:42:31,239 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 133.28571428571428) internal successors, (933), 7 states have internal predecessors, (933), 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) [2022-12-13 12:42:31,240 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 290.0) internal successors, (2320), 8 states have internal predecessors, (2320), 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) [2022-12-13 12:42:31,241 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 290.0) internal successors, (2320), 8 states have internal predecessors, (2320), 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) [2022-12-13 12:42:31,241 INFO L175 Difference]: Start difference. First operand has 83 places, 71 transitions, 675 flow. Second operand 7 states and 933 transitions. [2022-12-13 12:42:31,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 187 transitions, 2120 flow [2022-12-13 12:42:31,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 187 transitions, 1978 flow, removed 40 selfloop flow, removed 4 redundant places. [2022-12-13 12:42:31,365 INFO L231 Difference]: Finished difference. Result has 88 places, 72 transitions, 696 flow [2022-12-13 12:42:31,365 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=635, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=696, PETRI_PLACES=88, PETRI_TRANSITIONS=72} [2022-12-13 12:42:31,365 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 36 predicate places. [2022-12-13 12:42:31,365 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 72 transitions, 696 flow [2022-12-13 12:42:31,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 124.0) internal successors, (744), 6 states have internal predecessors, (744), 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) [2022-12-13 12:42:31,366 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:42:31,366 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:42:31,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 12:42:31,366 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 12:42:31,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:42:31,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1250994261, now seen corresponding path program 1 times [2022-12-13 12:42:31,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:42:31,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787108249] [2022-12-13 12:42:31,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:42:31,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:42:31,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:42:31,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:42:31,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:42:31,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787108249] [2022-12-13 12:42:31,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787108249] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:42:31,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:42:31,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 12:42:31,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163714975] [2022-12-13 12:42:31,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:42:31,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 12:42:31,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:42:31,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 12:42:31,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 12:42:31,487 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 290 [2022-12-13 12:42:31,488 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 72 transitions, 696 flow. Second operand has 6 states, 6 states have (on average 134.5) internal successors, (807), 6 states have internal predecessors, (807), 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) [2022-12-13 12:42:31,488 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:42:31,488 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 290 [2022-12-13 12:42:31,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:42:31,839 INFO L130 PetriNetUnfolder]: 1714/3004 cut-off events. [2022-12-13 12:42:31,839 INFO L131 PetriNetUnfolder]: For 14871/15252 co-relation queries the response was YES. [2022-12-13 12:42:31,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14664 conditions, 3004 events. 1714/3004 cut-off events. For 14871/15252 co-relation queries the response was YES. Maximal size of possible extension queue 222. Compared 19462 event pairs, 238 based on Foata normal form. 309/3237 useless extension candidates. Maximal degree in co-relation 14636. Up to 1082 conditions per place. [2022-12-13 12:42:31,848 INFO L137 encePairwiseOnDemand]: 284/290 looper letters, 47 selfloop transitions, 17 changer transitions 66/135 dead transitions. [2022-12-13 12:42:31,848 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 135 transitions, 1611 flow [2022-12-13 12:42:31,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 12:42:31,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 12:42:31,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 851 transitions. [2022-12-13 12:42:31,850 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48908045977011494 [2022-12-13 12:42:31,850 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 851 transitions. [2022-12-13 12:42:31,850 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 851 transitions. [2022-12-13 12:42:31,850 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:42:31,851 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 851 transitions. [2022-12-13 12:42:31,851 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 141.83333333333334) internal successors, (851), 6 states have internal predecessors, (851), 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) [2022-12-13 12:42:31,852 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 290.0) internal successors, (2030), 7 states have internal predecessors, (2030), 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) [2022-12-13 12:42:31,853 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 290.0) internal successors, (2030), 7 states have internal predecessors, (2030), 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) [2022-12-13 12:42:31,853 INFO L175 Difference]: Start difference. First operand has 88 places, 72 transitions, 696 flow. Second operand 6 states and 851 transitions. [2022-12-13 12:42:31,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 135 transitions, 1611 flow [2022-12-13 12:42:31,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 135 transitions, 1515 flow, removed 13 selfloop flow, removed 4 redundant places. [2022-12-13 12:42:31,929 INFO L231 Difference]: Finished difference. Result has 89 places, 46 transitions, 378 flow [2022-12-13 12:42:31,929 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=613, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=378, PETRI_PLACES=89, PETRI_TRANSITIONS=46} [2022-12-13 12:42:31,929 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 37 predicate places. [2022-12-13 12:42:31,929 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 46 transitions, 378 flow [2022-12-13 12:42:31,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 134.5) internal successors, (807), 6 states have internal predecessors, (807), 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) [2022-12-13 12:42:31,929 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:42:31,930 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:42:31,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-13 12:42:31,930 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 12:42:31,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:42:31,930 INFO L85 PathProgramCache]: Analyzing trace with hash -626162151, now seen corresponding path program 1 times [2022-12-13 12:42:31,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:42:31,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711951296] [2022-12-13 12:42:31,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:42:31,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:42:31,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:42:31,951 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:42:31,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:42:31,990 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:42:31,990 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 12:42:31,991 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (15 of 16 remaining) [2022-12-13 12:42:31,992 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONMEMORY_LEAK (14 of 16 remaining) [2022-12-13 12:42:31,992 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 16 remaining) [2022-12-13 12:42:31,992 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 16 remaining) [2022-12-13 12:42:31,992 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 16 remaining) [2022-12-13 12:42:31,993 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 16 remaining) [2022-12-13 12:42:31,993 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 16 remaining) [2022-12-13 12:42:31,993 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 16 remaining) [2022-12-13 12:42:31,993 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 16 remaining) [2022-12-13 12:42:31,993 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 16 remaining) [2022-12-13 12:42:31,993 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK (5 of 16 remaining) [2022-12-13 12:42:31,993 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 16 remaining) [2022-12-13 12:42:31,993 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 16 remaining) [2022-12-13 12:42:31,993 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 16 remaining) [2022-12-13 12:42:31,993 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 16 remaining) [2022-12-13 12:42:31,993 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 16 remaining) [2022-12-13 12:42:31,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-13 12:42:31,994 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:42:31,998 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 12:42:31,998 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 12:42:32,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 12:42:32 BasicIcfg [2022-12-13 12:42:32,041 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 12:42:32,042 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 12:42:32,042 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 12:42:32,042 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 12:42:32,042 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:42:01" (3/4) ... [2022-12-13 12:42:32,044 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 12:42:32,044 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 12:42:32,045 INFO L158 Benchmark]: Toolchain (without parser) took 31971.46ms. Allocated memory was 119.5MB in the beginning and 2.3GB in the end (delta: 2.2GB). Free memory was 82.3MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 695.7MB. Max. memory is 16.1GB. [2022-12-13 12:42:32,045 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 119.5MB. Free memory is still 88.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:42:32,045 INFO L158 Benchmark]: CACSL2BoogieTranslator took 410.75ms. Allocated memory is still 119.5MB. Free memory was 82.1MB in the beginning and 54.5MB in the end (delta: 27.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-12-13 12:42:32,045 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.70ms. Allocated memory is still 119.5MB. Free memory was 54.5MB in the beginning and 90.5MB in the end (delta: -36.0MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. [2022-12-13 12:42:32,045 INFO L158 Benchmark]: Boogie Preprocessor took 20.57ms. Allocated memory is still 119.5MB. Free memory was 90.5MB in the beginning and 88.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:42:32,045 INFO L158 Benchmark]: RCFGBuilder took 533.26ms. Allocated memory is still 119.5MB. Free memory was 88.4MB in the beginning and 54.4MB in the end (delta: 34.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-12-13 12:42:32,046 INFO L158 Benchmark]: TraceAbstraction took 30943.29ms. Allocated memory was 119.5MB in the beginning and 2.3GB in the end (delta: 2.2GB). Free memory was 53.5MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 665.7MB. Max. memory is 16.1GB. [2022-12-13 12:42:32,046 INFO L158 Benchmark]: Witness Printer took 2.49ms. Allocated memory is still 2.3GB. Free memory is still 1.6GB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:42:32,047 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 119.5MB. Free memory is still 88.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 410.75ms. Allocated memory is still 119.5MB. Free memory was 82.1MB in the beginning and 54.5MB in the end (delta: 27.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.70ms. Allocated memory is still 119.5MB. Free memory was 54.5MB in the beginning and 90.5MB in the end (delta: -36.0MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.57ms. Allocated memory is still 119.5MB. Free memory was 90.5MB in the beginning and 88.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 533.26ms. Allocated memory is still 119.5MB. Free memory was 88.4MB in the beginning and 54.4MB in the end (delta: 34.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 30943.29ms. Allocated memory was 119.5MB in the beginning and 2.3GB in the end (delta: 2.2GB). Free memory was 53.5MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 665.7MB. Max. memory is 16.1GB. * Witness Printer took 2.49ms. Allocated memory is still 2.3GB. Free memory is still 1.6GB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.5s, 156 PlacesBefore, 52 PlacesAfterwards, 145 TransitionsBefore, 40 TransitionsAfterwards, 3490 CoEnabledTransitionPairs, 7 FixpointIterations, 55 TrivialSequentialCompositions, 78 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 141 TotalNumberOfCompositions, 8889 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3885, independent: 3671, independent conditional: 0, independent unconditional: 3671, dependent: 214, dependent conditional: 0, dependent unconditional: 214, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1845, independent: 1805, independent conditional: 0, independent unconditional: 1805, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3885, independent: 1866, independent conditional: 0, independent unconditional: 1866, dependent: 174, dependent conditional: 0, dependent unconditional: 174, unknown: 1845, unknown conditional: 0, unknown unconditional: 1845] , Statistics on independence cache: Total cache size (in pairs): 217, Positive cache size: 193, Positive conditional cache size: 0, Positive unconditional cache size: 193, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p0_EAX = 0; [L714] 0 int __unbuffered_p3_EAX = 0; [L716] 0 int __unbuffered_p3_EBX = 0; [L718] 0 int a = 0; [L720] 0 int b = 0; [L721] 0 _Bool main$tmp_guard0; [L722] 0 _Bool main$tmp_guard1; [L724] 0 int x = 0; [L726] 0 int y = 0; [L728] 0 int z = 0; [L729] 0 _Bool z$flush_delayed; [L730] 0 int z$mem_tmp; [L731] 0 _Bool z$r_buff0_thd0; [L732] 0 _Bool z$r_buff0_thd1; [L733] 0 _Bool z$r_buff0_thd2; [L734] 0 _Bool z$r_buff0_thd3; [L735] 0 _Bool z$r_buff0_thd4; [L736] 0 _Bool z$r_buff1_thd0; [L737] 0 _Bool z$r_buff1_thd1; [L738] 0 _Bool z$r_buff1_thd2; [L739] 0 _Bool z$r_buff1_thd3; [L740] 0 _Bool z$r_buff1_thd4; [L741] 0 _Bool z$read_delayed; [L742] 0 int *z$read_delayed_var; [L743] 0 int z$w_buff0; [L744] 0 _Bool z$w_buff0_used; [L745] 0 int z$w_buff1; [L746] 0 _Bool z$w_buff1_used; [L747] 0 _Bool weak$$choice0; [L748] 0 _Bool weak$$choice2; [L846] 0 pthread_t t1221; [L847] FCALL, FORK 0 pthread_create(&t1221, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1221, ((void *)0), P0, ((void *)0))=-2, t1221={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L848] 0 pthread_t t1222; [L849] FCALL, FORK 0 pthread_create(&t1222, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1222, ((void *)0), P1, ((void *)0))=-1, t1221={5:0}, t1222={6:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L850] 0 pthread_t t1223; [L851] FCALL, FORK 0 pthread_create(&t1223, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1223, ((void *)0), P2, ((void *)0))=0, t1221={5:0}, t1222={6:0}, t1223={7:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L852] 0 pthread_t t1224; [L853] FCALL, FORK 0 pthread_create(&t1224, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1224, ((void *)0), P3, ((void *)0))=1, t1221={5:0}, t1222={6:0}, t1223={7:0}, t1224={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L802] 4 z$w_buff1 = z$w_buff0 [L803] 4 z$w_buff0 = 2 [L804] 4 z$w_buff1_used = z$w_buff0_used [L805] 4 z$w_buff0_used = (_Bool)1 [L806] CALL 4 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L18] COND FALSE 4 !(!expression) [L806] RET 4 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L807] 4 z$r_buff1_thd0 = z$r_buff0_thd0 [L808] 4 z$r_buff1_thd1 = z$r_buff0_thd1 [L809] 4 z$r_buff1_thd2 = z$r_buff0_thd2 [L810] 4 z$r_buff1_thd3 = z$r_buff0_thd3 [L811] 4 z$r_buff1_thd4 = z$r_buff0_thd4 [L812] 4 z$r_buff0_thd4 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L815] 4 a = 1 [L818] 4 __unbuffered_p3_EAX = a VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L821] 4 __unbuffered_p3_EBX = b VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L752] 1 b = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L755] 1 __unbuffered_p0_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L767] 2 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L770] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L782] 3 y = 2 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L785] 3 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L788] 3 z = z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L789] 3 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L790] 3 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L791] 3 z$r_buff0_thd3 = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L792] 3 z$r_buff1_thd3 = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L824] 4 z = z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L825] 4 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L826] 4 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L827] 4 z$r_buff0_thd4 = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L828] 4 z$r_buff1_thd4 = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, z=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L775] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L777] 2 return 0; [L760] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L762] 1 return 0; [L795] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L797] 3 return 0; [L831] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L833] 4 return 0; [L855] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L857] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L857] RET 0 assume_abort_if_not(main$tmp_guard0) [L859] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L860] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L861] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L862] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L863] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, t1221={5:0}, t1222={6:0}, t1223={7:0}, t1224={3:0}, weak$$choice0=0, weak$$choice2=0, x=1, y=2, z=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L866] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L867] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L868] 0 z$flush_delayed = weak$$choice2 [L869] 0 z$mem_tmp = z [L870] 0 z = !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff1) [L871] 0 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff0)) [L872] 0 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1)) [L873] 0 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used)) [L874] 0 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L875] 0 z$r_buff0_thd0 = weak$$choice2 ? z$r_buff0_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff0_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0)) [L876] 0 z$r_buff1_thd0 = weak$$choice2 ? z$r_buff1_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L877] 0 main$tmp_guard1 = !(y == 2 && z == 2 && __unbuffered_p0_EAX == 0 && __unbuffered_p3_EAX == 1 && __unbuffered_p3_EBX == 0) [L878] 0 z = z$flush_delayed ? z$mem_tmp : z [L879] 0 z$flush_delayed = (_Bool)0 [L881] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\old(expression)=1, \old(expression)=0, \result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, expression=0, expression=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, y=2, z=2, z$flush_delayed=0, z$mem_tmp=2, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 844]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 847]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 851]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 849]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 853]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 185 locations, 16 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 30.8s, OverallIterations: 19, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 21.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1362 SdHoareTripleChecker+Valid, 3.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1116 mSDsluCounter, 730 SdHoareTripleChecker+Invalid, 2.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 576 mSDsCounter, 240 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3398 IncrementalHoareTripleChecker+Invalid, 3638 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 240 mSolverCounterUnsat, 154 mSDtfsCounter, 3398 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 100 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1029occurred in iteration=11, InterpolantAutomatonStates: 106, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 5.1s InterpolantComputationTime, 317 NumberOfCodeBlocks, 317 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 272 ConstructedInterpolants, 0 QuantifiedInterpolants, 2792 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 12:42:32,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix046.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8 --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 f69f777f524a62a415fc7cacc9442c44e05883e29c36815b4e0d58199826b331 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 12:42:33,818 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 12:42:33,820 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 12:42:33,840 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 12:42:33,840 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 12:42:33,841 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 12:42:33,843 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 12:42:33,844 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 12:42:33,846 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 12:42:33,847 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 12:42:33,848 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 12:42:33,849 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 12:42:33,849 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 12:42:33,850 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 12:42:33,851 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 12:42:33,853 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 12:42:33,854 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 12:42:33,855 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 12:42:33,858 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 12:42:33,859 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 12:42:33,860 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 12:42:33,860 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 12:42:33,861 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 12:42:33,862 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 12:42:33,864 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 12:42:33,864 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 12:42:33,864 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 12:42:33,864 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 12:42:33,865 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 12:42:33,865 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 12:42:33,865 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 12:42:33,869 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 12:42:33,870 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 12:42:33,872 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 12:42:33,872 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 12:42:33,872 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 12:42:33,873 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 12:42:33,873 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 12:42:33,873 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 12:42:33,873 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 12:42:33,874 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 12:42:33,874 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-12-13 12:42:33,891 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 12:42:33,891 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 12:42:33,892 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 12:42:33,892 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 12:42:33,892 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 12:42:33,892 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 12:42:33,893 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 12:42:33,893 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 12:42:33,893 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 12:42:33,893 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 12:42:33,893 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 12:42:33,893 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 12:42:33,893 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 12:42:33,893 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 12:42:33,894 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 12:42:33,894 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 12:42:33,894 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 12:42:33,894 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 12:42:33,894 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 12:42:33,894 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 12:42:33,894 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 12:42:33,894 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 12:42:33,894 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 12:42:33,894 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 12:42:33,895 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 12:42:33,895 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 12:42:33,895 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 12:42:33,895 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:42:33,895 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 12:42:33,895 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 12:42:33,895 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 12:42:33,895 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 12:42:33,895 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 12:42:33,895 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 12:42:33,896 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 12:42:33,896 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 12:42:33,896 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 12:42:33,896 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8 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 -> f69f777f524a62a415fc7cacc9442c44e05883e29c36815b4e0d58199826b331 [2022-12-13 12:42:34,094 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 12:42:34,111 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 12:42:34,113 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 12:42:34,114 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 12:42:34,114 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 12:42:34,115 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-wmm/mix046.opt.i [2022-12-13 12:42:36,765 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 12:42:36,932 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 12:42:36,932 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/sv-benchmarks/c/pthread-wmm/mix046.opt.i [2022-12-13 12:42:36,945 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/data/5a9a213f0/9e5d8a81789c4259bd74f849da1d5fb1/FLAGe0a129fbe [2022-12-13 12:42:36,957 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/data/5a9a213f0/9e5d8a81789c4259bd74f849da1d5fb1 [2022-12-13 12:42:36,959 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 12:42:36,961 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 12:42:36,962 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 12:42:36,962 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 12:42:36,965 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 12:42:36,966 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:42:36" (1/1) ... [2022-12-13 12:42:36,967 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@937c6b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:42:36, skipping insertion in model container [2022-12-13 12:42:36,967 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:42:36" (1/1) ... [2022-12-13 12:42:36,972 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 12:42:37,009 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:42:37,142 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/sv-benchmarks/c/pthread-wmm/mix046.opt.i[944,957] [2022-12-13 12:42:37,277 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:37,277 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:37,278 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:37,278 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:37,278 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:37,278 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:37,278 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:37,279 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:37,279 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:37,279 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:37,280 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:37,280 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:37,284 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:37,285 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:37,285 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:37,285 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:37,286 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:37,286 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:37,286 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:37,287 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:37,287 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:37,289 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:37,289 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:37,289 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:37,290 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:37,291 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:37,291 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:37,292 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:37,292 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:37,292 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:37,292 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:37,292 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:37,293 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:37,295 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:37,295 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:37,295 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:37,301 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:37,301 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:37,301 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:37,303 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:37,303 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:37,307 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:37,308 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:42:37,318 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 12:42:37,327 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/sv-benchmarks/c/pthread-wmm/mix046.opt.i[944,957] [2022-12-13 12:42:37,340 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:37,340 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:37,341 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:37,341 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:37,341 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:37,341 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:37,341 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:37,342 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:37,342 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:37,342 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:37,342 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:37,343 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:37,343 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:37,343 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:37,343 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:37,344 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:37,344 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:37,344 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:37,344 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:37,345 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:37,345 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:37,346 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:37,346 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:37,347 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:37,347 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:37,348 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:37,348 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:37,348 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:37,348 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:37,349 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:37,349 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:37,349 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:37,349 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:37,351 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:37,351 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:37,351 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:37,354 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:37,355 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:37,355 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:37,356 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:37,356 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:42:37,359 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:42:37,360 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:42:37,388 INFO L208 MainTranslator]: Completed translation [2022-12-13 12:42:37,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:42:37 WrapperNode [2022-12-13 12:42:37,389 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 12:42:37,390 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 12:42:37,390 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 12:42:37,390 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 12:42:37,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:42:37" (1/1) ... [2022-12-13 12:42:37,411 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:42:37" (1/1) ... [2022-12-13 12:42:37,437 INFO L138 Inliner]: procedures = 180, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 167 [2022-12-13 12:42:37,437 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 12:42:37,438 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 12:42:37,438 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 12:42:37,438 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 12:42:37,447 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:42:37" (1/1) ... [2022-12-13 12:42:37,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:42:37" (1/1) ... [2022-12-13 12:42:37,451 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:42:37" (1/1) ... [2022-12-13 12:42:37,451 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:42:37" (1/1) ... [2022-12-13 12:42:37,460 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:42:37" (1/1) ... [2022-12-13 12:42:37,462 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:42:37" (1/1) ... [2022-12-13 12:42:37,465 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:42:37" (1/1) ... [2022-12-13 12:42:37,467 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:42:37" (1/1) ... [2022-12-13 12:42:37,470 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 12:42:37,471 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 12:42:37,471 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 12:42:37,471 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 12:42:37,472 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:42:37" (1/1) ... [2022-12-13 12:42:37,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:42:37,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:42:37,501 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 12:42:37,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 12:42:37,535 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 12:42:37,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 12:42:37,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 12:42:37,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 12:42:37,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-13 12:42:37,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 12:42:37,536 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 12:42:37,536 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 12:42:37,536 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 12:42:37,536 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 12:42:37,536 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-13 12:42:37,537 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-13 12:42:37,537 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-13 12:42:37,537 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-13 12:42:37,537 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 12:42:37,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 12:42:37,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 12:42:37,539 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 12:42:37,673 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 12:42:37,675 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 12:42:37,990 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 12:42:38,058 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 12:42:38,059 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 12:42:38,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:42:38 BoogieIcfgContainer [2022-12-13 12:42:38,060 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 12:42:38,062 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 12:42:38,062 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 12:42:38,064 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 12:42:38,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 12:42:36" (1/3) ... [2022-12-13 12:42:38,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3acfde3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:42:38, skipping insertion in model container [2022-12-13 12:42:38,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:42:37" (2/3) ... [2022-12-13 12:42:38,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3acfde3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:42:38, skipping insertion in model container [2022-12-13 12:42:38,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:42:38" (3/3) ... [2022-12-13 12:42:38,066 INFO L112 eAbstractionObserver]: Analyzing ICFG mix046.opt.i [2022-12-13 12:42:38,080 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 12:42:38,080 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2022-12-13 12:42:38,080 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 12:42:38,122 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 12:42:38,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 161 places, 150 transitions, 320 flow [2022-12-13 12:42:38,197 INFO L130 PetriNetUnfolder]: 2/146 cut-off events. [2022-12-13 12:42:38,197 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:42:38,202 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 146 events. 2/146 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 103 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 100. Up to 2 conditions per place. [2022-12-13 12:42:38,202 INFO L82 GeneralOperation]: Start removeDead. Operand has 161 places, 150 transitions, 320 flow [2022-12-13 12:42:38,205 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 157 places, 146 transitions, 304 flow [2022-12-13 12:42:38,208 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 12:42:38,215 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 157 places, 146 transitions, 304 flow [2022-12-13 12:42:38,218 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 157 places, 146 transitions, 304 flow [2022-12-13 12:42:38,218 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 157 places, 146 transitions, 304 flow [2022-12-13 12:42:38,239 INFO L130 PetriNetUnfolder]: 2/146 cut-off events. [2022-12-13 12:42:38,239 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:42:38,240 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 146 events. 2/146 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 103 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 100. Up to 2 conditions per place. [2022-12-13 12:42:38,241 INFO L119 LiptonReduction]: Number of co-enabled transitions 3490 [2022-12-13 12:42:46,863 INFO L134 LiptonReduction]: Checked pairs total: 8779 [2022-12-13 12:42:46,863 INFO L136 LiptonReduction]: Total number of compositions: 143 [2022-12-13 12:42:46,877 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 12:42:46,882 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;@53dc7a99, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 12:42:46,882 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-12-13 12:42:46,884 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 12:42:46,884 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:42:46,884 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:42:46,884 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 12:42:46,885 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 12:42:46,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:42:46,889 INFO L85 PathProgramCache]: Analyzing trace with hash 611, now seen corresponding path program 1 times [2022-12-13 12:42:46,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 12:42:46,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [674039049] [2022-12-13 12:42:46,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:42:46,901 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 [2022-12-13 12:42:46,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 12:42:46,903 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 12:42:46,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/mathsat -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 [2022-12-13 12:42:46,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:42:46,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 12:42:46,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:42:46,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:42:46,967 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 12:42:46,968 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 12:42:46,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [674039049] [2022-12-13 12:42:46,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [674039049] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:42:46,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:42:46,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 12:42:46,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117637354] [2022-12-13 12:42:46,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:42:46,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 12:42:46,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 12:42:46,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 12:42:46,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 12:42:46,998 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 293 [2022-12-13 12:42:47,000 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 37 transitions, 86 flow. Second operand has 2 states, 2 states have (on average 137.5) internal successors, (275), 2 states have internal predecessors, (275), 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) [2022-12-13 12:42:47,000 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:42:47,000 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 293 [2022-12-13 12:42:47,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:42:47,885 INFO L130 PetriNetUnfolder]: 3743/5242 cut-off events. [2022-12-13 12:42:47,885 INFO L131 PetriNetUnfolder]: For 33/33 co-relation queries the response was YES. [2022-12-13 12:42:47,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10482 conditions, 5242 events. 3743/5242 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 302. Compared 26810 event pairs, 3743 based on Foata normal form. 0/4473 useless extension candidates. Maximal degree in co-relation 10470. Up to 5137 conditions per place. [2022-12-13 12:42:47,926 INFO L137 encePairwiseOnDemand]: 285/293 looper letters, 25 selfloop transitions, 0 changer transitions 0/29 dead transitions. [2022-12-13 12:42:47,926 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 29 transitions, 120 flow [2022-12-13 12:42:47,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 12:42:47,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 12:42:47,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 307 transitions. [2022-12-13 12:42:47,939 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5238907849829352 [2022-12-13 12:42:47,940 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 307 transitions. [2022-12-13 12:42:47,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 307 transitions. [2022-12-13 12:42:47,942 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:42:47,944 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 307 transitions. [2022-12-13 12:42:47,947 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 153.5) internal successors, (307), 2 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:42:47,952 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 293.0) internal successors, (879), 3 states have internal predecessors, (879), 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) [2022-12-13 12:42:47,952 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 293.0) internal successors, (879), 3 states have internal predecessors, (879), 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) [2022-12-13 12:42:47,954 INFO L175 Difference]: Start difference. First operand has 50 places, 37 transitions, 86 flow. Second operand 2 states and 307 transitions. [2022-12-13 12:42:47,955 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 29 transitions, 120 flow [2022-12-13 12:42:47,958 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 29 transitions, 116 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 12:42:47,960 INFO L231 Difference]: Finished difference. Result has 39 places, 29 transitions, 66 flow [2022-12-13 12:42:47,962 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=293, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=66, PETRI_PLACES=39, PETRI_TRANSITIONS=29} [2022-12-13 12:42:47,965 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, -11 predicate places. [2022-12-13 12:42:47,965 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 29 transitions, 66 flow [2022-12-13 12:42:47,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 137.5) internal successors, (275), 2 states have internal predecessors, (275), 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) [2022-12-13 12:42:47,966 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:42:47,966 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:42:47,974 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/mathsat -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 [2022-12-13 12:42:48,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 12:42:48,167 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P3Err0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 12:42:48,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:42:48,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1433904531, now seen corresponding path program 1 times [2022-12-13 12:42:48,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 12:42:48,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1395435650] [2022-12-13 12:42:48,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:42:48,169 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 [2022-12-13 12:42:48,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 12:42:48,170 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 12:42:48,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/mathsat -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 [2022-12-13 12:42:48,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:42:48,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 12:42:48,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:42:48,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:42:48,279 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 12:42:48,279 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 12:42:48,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1395435650] [2022-12-13 12:42:48,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1395435650] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:42:48,280 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:42:48,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 12:42:48,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226054896] [2022-12-13 12:42:48,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:42:48,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:42:48,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 12:42:48,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:42:48,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:42:48,286 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 293 [2022-12-13 12:42:48,287 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 29 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 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) [2022-12-13 12:42:48,287 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:42:48,287 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 293 [2022-12-13 12:42:48,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:42:48,864 INFO L130 PetriNetUnfolder]: 3113/4531 cut-off events. [2022-12-13 12:42:48,864 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:42:48,868 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8922 conditions, 4531 events. 3113/4531 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 254. Compared 24688 event pairs, 593 based on Foata normal form. 0/4158 useless extension candidates. Maximal degree in co-relation 8919. Up to 3385 conditions per place. [2022-12-13 12:42:48,880 INFO L137 encePairwiseOnDemand]: 290/293 looper letters, 32 selfloop transitions, 2 changer transitions 2/40 dead transitions. [2022-12-13 12:42:48,880 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 40 transitions, 160 flow [2022-12-13 12:42:48,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:42:48,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 12:42:48,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 445 transitions. [2022-12-13 12:42:48,883 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5062571103526735 [2022-12-13 12:42:48,883 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 445 transitions. [2022-12-13 12:42:48,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 445 transitions. [2022-12-13 12:42:48,883 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:42:48,883 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 445 transitions. [2022-12-13 12:42:48,884 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 148.33333333333334) internal successors, (445), 3 states have internal predecessors, (445), 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) [2022-12-13 12:42:48,886 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 293.0) internal successors, (1172), 4 states have internal predecessors, (1172), 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) [2022-12-13 12:42:48,886 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 293.0) internal successors, (1172), 4 states have internal predecessors, (1172), 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) [2022-12-13 12:42:48,886 INFO L175 Difference]: Start difference. First operand has 39 places, 29 transitions, 66 flow. Second operand 3 states and 445 transitions. [2022-12-13 12:42:48,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 40 transitions, 160 flow [2022-12-13 12:42:48,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 40 transitions, 160 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 12:42:48,887 INFO L231 Difference]: Finished difference. Result has 40 places, 27 transitions, 66 flow [2022-12-13 12:42:48,888 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=293, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=66, PETRI_PLACES=40, PETRI_TRANSITIONS=27} [2022-12-13 12:42:48,888 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, -10 predicate places. [2022-12-13 12:42:48,888 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 27 transitions, 66 flow [2022-12-13 12:42:48,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 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) [2022-12-13 12:42:48,889 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:42:48,889 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:42:48,900 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/mathsat -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 [2022-12-13 12:42:49,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 12:42:49,090 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 12:42:49,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:42:49,090 INFO L85 PathProgramCache]: Analyzing trace with hash 702323260, now seen corresponding path program 1 times [2022-12-13 12:42:49,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 12:42:49,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [262185745] [2022-12-13 12:42:49,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:42:49,091 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 [2022-12-13 12:42:49,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 12:42:49,092 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 12:42:49,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/mathsat -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 [2022-12-13 12:42:49,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:42:49,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 12:42:49,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:42:49,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:42:49,213 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 12:42:49,213 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 12:42:49,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [262185745] [2022-12-13 12:42:49,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [262185745] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:42:49,214 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:42:49,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:42:49,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304112783] [2022-12-13 12:42:49,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:42:49,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 12:42:49,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 12:42:49,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 12:42:49,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 12:42:49,233 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 293 [2022-12-13 12:42:49,234 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 27 transitions, 66 flow. Second operand has 4 states, 4 states have (on average 133.75) internal successors, (535), 4 states have internal predecessors, (535), 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) [2022-12-13 12:42:49,234 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:42:49,235 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 293 [2022-12-13 12:42:49,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:42:49,752 INFO L130 PetriNetUnfolder]: 2213/3223 cut-off events. [2022-12-13 12:42:49,752 INFO L131 PetriNetUnfolder]: For 156/156 co-relation queries the response was YES. [2022-12-13 12:42:49,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6692 conditions, 3223 events. 2213/3223 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 16317 event pairs, 423 based on Foata normal form. 180/3264 useless extension candidates. Maximal degree in co-relation 6688. Up to 2428 conditions per place. [2022-12-13 12:42:49,770 INFO L137 encePairwiseOnDemand]: 286/293 looper letters, 35 selfloop transitions, 5 changer transitions 23/67 dead transitions. [2022-12-13 12:42:49,770 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 67 transitions, 284 flow [2022-12-13 12:42:49,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 12:42:49,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 12:42:49,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 720 transitions. [2022-12-13 12:42:49,774 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49146757679180886 [2022-12-13 12:42:49,775 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 720 transitions. [2022-12-13 12:42:49,775 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 720 transitions. [2022-12-13 12:42:49,775 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:42:49,775 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 720 transitions. [2022-12-13 12:42:49,778 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 144.0) internal successors, (720), 5 states have internal predecessors, (720), 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) [2022-12-13 12:42:49,782 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 293.0) internal successors, (1758), 6 states have internal predecessors, (1758), 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) [2022-12-13 12:42:49,783 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 293.0) internal successors, (1758), 6 states have internal predecessors, (1758), 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) [2022-12-13 12:42:49,784 INFO L175 Difference]: Start difference. First operand has 40 places, 27 transitions, 66 flow. Second operand 5 states and 720 transitions. [2022-12-13 12:42:49,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 67 transitions, 284 flow [2022-12-13 12:42:49,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 67 transitions, 274 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 12:42:49,787 INFO L231 Difference]: Finished difference. Result has 44 places, 31 transitions, 107 flow [2022-12-13 12:42:49,787 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=293, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=107, PETRI_PLACES=44, PETRI_TRANSITIONS=31} [2022-12-13 12:42:49,788 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, -6 predicate places. [2022-12-13 12:42:49,788 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 31 transitions, 107 flow [2022-12-13 12:42:49,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 133.75) internal successors, (535), 4 states have internal predecessors, (535), 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) [2022-12-13 12:42:49,789 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:42:49,789 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:42:49,797 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-12-13 12:42:49,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 12:42:49,990 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 12:42:49,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:42:49,992 INFO L85 PathProgramCache]: Analyzing trace with hash 104592427, now seen corresponding path program 1 times [2022-12-13 12:42:49,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 12:42:49,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [779948875] [2022-12-13 12:42:49,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:42:49,995 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 [2022-12-13 12:42:49,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 12:42:50,018 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 12:42:50,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/mathsat -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 [2022-12-13 12:42:50,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:42:50,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 12:42:50,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:42:50,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:42:50,242 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 12:42:50,242 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 12:42:50,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [779948875] [2022-12-13 12:42:50,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [779948875] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:42:50,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:42:50,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 12:42:50,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529280146] [2022-12-13 12:42:50,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:42:50,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 12:42:50,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 12:42:50,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 12:42:50,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 12:42:50,264 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 293 [2022-12-13 12:42:50,266 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 31 transitions, 107 flow. Second operand has 5 states, 5 states have (on average 133.6) internal successors, (668), 5 states have internal predecessors, (668), 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) [2022-12-13 12:42:50,266 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:42:50,266 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 293 [2022-12-13 12:42:50,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:42:50,623 INFO L130 PetriNetUnfolder]: 1185/1843 cut-off events. [2022-12-13 12:42:50,623 INFO L131 PetriNetUnfolder]: For 764/764 co-relation queries the response was YES. [2022-12-13 12:42:50,625 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5119 conditions, 1843 events. 1185/1843 cut-off events. For 764/764 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 8950 event pairs, 173 based on Foata normal form. 132/1912 useless extension candidates. Maximal degree in co-relation 5112. Up to 872 conditions per place. [2022-12-13 12:42:50,629 INFO L137 encePairwiseOnDemand]: 286/293 looper letters, 46 selfloop transitions, 9 changer transitions 23/82 dead transitions. [2022-12-13 12:42:50,629 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 82 transitions, 425 flow [2022-12-13 12:42:50,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 12:42:50,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 12:42:50,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 866 transitions. [2022-12-13 12:42:50,633 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4926052332195677 [2022-12-13 12:42:50,633 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 866 transitions. [2022-12-13 12:42:50,633 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 866 transitions. [2022-12-13 12:42:50,633 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:42:50,633 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 866 transitions. [2022-12-13 12:42:50,635 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 144.33333333333334) internal successors, (866), 6 states have internal predecessors, (866), 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) [2022-12-13 12:42:50,636 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 293.0) internal successors, (2051), 7 states have internal predecessors, (2051), 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) [2022-12-13 12:42:50,637 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 293.0) internal successors, (2051), 7 states have internal predecessors, (2051), 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) [2022-12-13 12:42:50,637 INFO L175 Difference]: Start difference. First operand has 44 places, 31 transitions, 107 flow. Second operand 6 states and 866 transitions. [2022-12-13 12:42:50,637 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 82 transitions, 425 flow [2022-12-13 12:42:50,641 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 82 transitions, 418 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-12-13 12:42:50,642 INFO L231 Difference]: Finished difference. Result has 48 places, 35 transitions, 172 flow [2022-12-13 12:42:50,642 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=293, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=172, PETRI_PLACES=48, PETRI_TRANSITIONS=35} [2022-12-13 12:42:50,642 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, -2 predicate places. [2022-12-13 12:42:50,642 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 35 transitions, 172 flow [2022-12-13 12:42:50,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 133.6) internal successors, (668), 5 states have internal predecessors, (668), 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) [2022-12-13 12:42:50,643 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:42:50,643 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:42:50,654 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-12-13 12:42:50,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 12:42:50,844 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 12:42:50,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:42:50,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1429323951, now seen corresponding path program 1 times [2022-12-13 12:42:50,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 12:42:50,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1221704497] [2022-12-13 12:42:50,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:42:50,848 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 [2022-12-13 12:42:50,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 12:42:50,851 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 12:42:50,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/mathsat -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 [2022-12-13 12:42:50,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:42:50,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 12:42:50,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:42:51,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:42:51,022 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 12:42:51,022 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 12:42:51,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1221704497] [2022-12-13 12:42:51,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1221704497] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:42:51,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:42:51,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 12:42:51,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049923001] [2022-12-13 12:42:51,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:42:51,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 12:42:51,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 12:42:51,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 12:42:51,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 12:42:51,040 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 293 [2022-12-13 12:42:51,041 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 35 transitions, 172 flow. Second operand has 6 states, 6 states have (on average 133.5) internal successors, (801), 6 states have internal predecessors, (801), 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) [2022-12-13 12:42:51,041 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:42:51,041 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 293 [2022-12-13 12:42:51,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:42:51,357 INFO L130 PetriNetUnfolder]: 649/1055 cut-off events. [2022-12-13 12:42:51,357 INFO L131 PetriNetUnfolder]: For 1188/1188 co-relation queries the response was YES. [2022-12-13 12:42:51,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3442 conditions, 1055 events. 649/1055 cut-off events. For 1188/1188 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 4641 event pairs, 123 based on Foata normal form. 56/1092 useless extension candidates. Maximal degree in co-relation 3433. Up to 391 conditions per place. [2022-12-13 12:42:51,361 INFO L137 encePairwiseOnDemand]: 286/293 looper letters, 55 selfloop transitions, 13 changer transitions 23/95 dead transitions. [2022-12-13 12:42:51,361 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 95 transitions, 586 flow [2022-12-13 12:42:51,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 12:42:51,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 12:42:51,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1010 transitions. [2022-12-13 12:42:51,364 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.492442710872745 [2022-12-13 12:42:51,364 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1010 transitions. [2022-12-13 12:42:51,364 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1010 transitions. [2022-12-13 12:42:51,364 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:42:51,364 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1010 transitions. [2022-12-13 12:42:51,366 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 144.28571428571428) internal successors, (1010), 7 states have internal predecessors, (1010), 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) [2022-12-13 12:42:51,367 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 293.0) internal successors, (2344), 8 states have internal predecessors, (2344), 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) [2022-12-13 12:42:51,368 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 293.0) internal successors, (2344), 8 states have internal predecessors, (2344), 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) [2022-12-13 12:42:51,368 INFO L175 Difference]: Start difference. First operand has 48 places, 35 transitions, 172 flow. Second operand 7 states and 1010 transitions. [2022-12-13 12:42:51,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 95 transitions, 586 flow [2022-12-13 12:42:51,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 95 transitions, 524 flow, removed 26 selfloop flow, removed 4 redundant places. [2022-12-13 12:42:51,375 INFO L231 Difference]: Finished difference. Result has 51 places, 39 transitions, 222 flow [2022-12-13 12:42:51,375 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=293, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=222, PETRI_PLACES=51, PETRI_TRANSITIONS=39} [2022-12-13 12:42:51,376 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, 1 predicate places. [2022-12-13 12:42:51,376 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 39 transitions, 222 flow [2022-12-13 12:42:51,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 133.5) internal successors, (801), 6 states have internal predecessors, (801), 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) [2022-12-13 12:42:51,376 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:42:51,376 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:42:51,384 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-12-13 12:42:51,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 12:42:51,578 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 12:42:51,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:42:51,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1271426574, now seen corresponding path program 1 times [2022-12-13 12:42:51,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 12:42:51,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [904243044] [2022-12-13 12:42:51,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:42:51,581 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 [2022-12-13 12:42:51,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 12:42:51,584 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 12:42:51,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/mathsat -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 [2022-12-13 12:42:51,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:42:51,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 12:42:51,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:42:51,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:42:51,759 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 12:42:51,759 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 12:42:51,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [904243044] [2022-12-13 12:42:51,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [904243044] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:42:51,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:42:51,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 12:42:51,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913877846] [2022-12-13 12:42:51,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:42:51,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 12:42:51,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 12:42:51,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 12:42:51,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 12:42:51,792 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 293 [2022-12-13 12:42:51,794 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 39 transitions, 222 flow. Second operand has 7 states, 7 states have (on average 133.57142857142858) internal successors, (935), 7 states have internal predecessors, (935), 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) [2022-12-13 12:42:51,794 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:42:51,794 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 293 [2022-12-13 12:42:51,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:42:52,192 INFO L130 PetriNetUnfolder]: 528/846 cut-off events. [2022-12-13 12:42:52,192 INFO L131 PetriNetUnfolder]: For 938/938 co-relation queries the response was YES. [2022-12-13 12:42:52,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2645 conditions, 846 events. 528/846 cut-off events. For 938/938 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 3552 event pairs, 119 based on Foata normal form. 12/850 useless extension candidates. Maximal degree in co-relation 2635. Up to 340 conditions per place. [2022-12-13 12:42:52,197 INFO L137 encePairwiseOnDemand]: 286/293 looper letters, 51 selfloop transitions, 17 changer transitions 12/84 dead transitions. [2022-12-13 12:42:52,197 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 84 transitions, 530 flow [2022-12-13 12:42:52,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 12:42:52,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 12:42:52,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1130 transitions. [2022-12-13 12:42:52,199 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48208191126279865 [2022-12-13 12:42:52,199 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1130 transitions. [2022-12-13 12:42:52,200 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1130 transitions. [2022-12-13 12:42:52,200 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:42:52,200 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1130 transitions. [2022-12-13 12:42:52,201 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 141.25) internal successors, (1130), 8 states have internal predecessors, (1130), 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) [2022-12-13 12:42:52,203 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 293.0) internal successors, (2637), 9 states have internal predecessors, (2637), 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) [2022-12-13 12:42:52,203 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 293.0) internal successors, (2637), 9 states have internal predecessors, (2637), 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) [2022-12-13 12:42:52,204 INFO L175 Difference]: Start difference. First operand has 51 places, 39 transitions, 222 flow. Second operand 8 states and 1130 transitions. [2022-12-13 12:42:52,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 84 transitions, 530 flow [2022-12-13 12:42:52,210 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 84 transitions, 468 flow, removed 22 selfloop flow, removed 5 redundant places. [2022-12-13 12:42:52,211 INFO L231 Difference]: Finished difference. Result has 54 places, 39 transitions, 216 flow [2022-12-13 12:42:52,212 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=293, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=216, PETRI_PLACES=54, PETRI_TRANSITIONS=39} [2022-12-13 12:42:52,212 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, 4 predicate places. [2022-12-13 12:42:52,213 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 39 transitions, 216 flow [2022-12-13 12:42:52,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 133.57142857142858) internal successors, (935), 7 states have internal predecessors, (935), 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) [2022-12-13 12:42:52,213 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:42:52,213 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:42:52,236 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/mathsat -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)] Ended with exit code 0 [2022-12-13 12:42:52,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 12:42:52,414 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 12:42:52,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:42:52,415 INFO L85 PathProgramCache]: Analyzing trace with hash -260570229, now seen corresponding path program 1 times [2022-12-13 12:42:52,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 12:42:52,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [800473632] [2022-12-13 12:42:52,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:42:52,416 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 [2022-12-13 12:42:52,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 12:42:52,417 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 12:42:52,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/mathsat -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 [2022-12-13 12:42:52,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:42:52,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 18 conjunts are in the unsatisfiable core [2022-12-13 12:42:52,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:42:53,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:42:53,016 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 12:42:53,016 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 12:42:53,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [800473632] [2022-12-13 12:42:53,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [800473632] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:42:53,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:42:53,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 12:42:53,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647818859] [2022-12-13 12:42:53,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:42:53,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 12:42:53,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 12:42:53,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 12:42:53,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 12:42:53,375 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 293 [2022-12-13 12:42:53,376 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 39 transitions, 216 flow. Second operand has 6 states, 6 states have (on average 120.66666666666667) internal successors, (724), 6 states have internal predecessors, (724), 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) [2022-12-13 12:42:53,376 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:42:53,376 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 293 [2022-12-13 12:42:53,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:42:53,702 INFO L130 PetriNetUnfolder]: 518/844 cut-off events. [2022-12-13 12:42:53,702 INFO L131 PetriNetUnfolder]: For 1350/1350 co-relation queries the response was YES. [2022-12-13 12:42:53,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2576 conditions, 844 events. 518/844 cut-off events. For 1350/1350 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 3936 event pairs, 11 based on Foata normal form. 0/844 useless extension candidates. Maximal degree in co-relation 2565. Up to 669 conditions per place. [2022-12-13 12:42:53,706 INFO L137 encePairwiseOnDemand]: 288/293 looper letters, 51 selfloop transitions, 4 changer transitions 0/59 dead transitions. [2022-12-13 12:42:53,706 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 59 transitions, 447 flow [2022-12-13 12:42:53,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 12:42:53,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 12:42:53,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 738 transitions. [2022-12-13 12:42:53,708 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4197952218430034 [2022-12-13 12:42:53,708 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 738 transitions. [2022-12-13 12:42:53,709 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 738 transitions. [2022-12-13 12:42:53,709 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:42:53,709 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 738 transitions. [2022-12-13 12:42:53,710 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 123.0) internal successors, (738), 6 states have internal predecessors, (738), 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) [2022-12-13 12:42:53,711 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 293.0) internal successors, (2051), 7 states have internal predecessors, (2051), 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) [2022-12-13 12:42:53,712 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 293.0) internal successors, (2051), 7 states have internal predecessors, (2051), 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) [2022-12-13 12:42:53,712 INFO L175 Difference]: Start difference. First operand has 54 places, 39 transitions, 216 flow. Second operand 6 states and 738 transitions. [2022-12-13 12:42:53,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 59 transitions, 447 flow [2022-12-13 12:42:53,714 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 59 transitions, 358 flow, removed 19 selfloop flow, removed 7 redundant places. [2022-12-13 12:42:53,715 INFO L231 Difference]: Finished difference. Result has 49 places, 38 transitions, 158 flow [2022-12-13 12:42:53,715 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=293, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=158, PETRI_PLACES=49, PETRI_TRANSITIONS=38} [2022-12-13 12:42:53,715 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, -1 predicate places. [2022-12-13 12:42:53,716 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 38 transitions, 158 flow [2022-12-13 12:42:53,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 120.66666666666667) internal successors, (724), 6 states have internal predecessors, (724), 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) [2022-12-13 12:42:53,716 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:42:53,716 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:42:53,729 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/mathsat -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)] Ended with exit code 0 [2022-12-13 12:42:53,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 12:42:53,918 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 12:42:53,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:42:53,919 INFO L85 PathProgramCache]: Analyzing trace with hash -785406718, now seen corresponding path program 1 times [2022-12-13 12:42:53,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 12:42:53,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [354017237] [2022-12-13 12:42:53,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:42:53,922 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 [2022-12-13 12:42:53,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 12:42:53,925 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 12:42:53,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/mathsat -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 [2022-12-13 12:42:54,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:42:54,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 12:42:54,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:42:54,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:42:54,066 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 12:42:54,066 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 12:42:54,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [354017237] [2022-12-13 12:42:54,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [354017237] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:42:54,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:42:54,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:42:54,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853497363] [2022-12-13 12:42:54,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:42:54,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:42:54,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 12:42:54,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:42:54,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:42:54,071 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 293 [2022-12-13 12:42:54,072 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 38 transitions, 158 flow. Second operand has 3 states, 3 states have (on average 141.66666666666666) internal successors, (425), 3 states have internal predecessors, (425), 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) [2022-12-13 12:42:54,072 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:42:54,072 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 293 [2022-12-13 12:42:54,072 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:42:54,263 INFO L130 PetriNetUnfolder]: 932/1480 cut-off events. [2022-12-13 12:42:54,263 INFO L131 PetriNetUnfolder]: For 1022/1022 co-relation queries the response was YES. [2022-12-13 12:42:54,264 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4183 conditions, 1480 events. 932/1480 cut-off events. For 1022/1022 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 7475 event pairs, 443 based on Foata normal form. 1/1462 useless extension candidates. Maximal degree in co-relation 4175. Up to 889 conditions per place. [2022-12-13 12:42:54,266 INFO L137 encePairwiseOnDemand]: 290/293 looper letters, 50 selfloop transitions, 2 changer transitions 11/66 dead transitions. [2022-12-13 12:42:54,266 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 66 transitions, 412 flow [2022-12-13 12:42:54,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:42:54,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 12:42:54,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 442 transitions. [2022-12-13 12:42:54,268 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.502844141069397 [2022-12-13 12:42:54,268 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 442 transitions. [2022-12-13 12:42:54,268 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 442 transitions. [2022-12-13 12:42:54,269 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:42:54,269 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 442 transitions. [2022-12-13 12:42:54,270 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 147.33333333333334) internal successors, (442), 3 states have internal predecessors, (442), 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) [2022-12-13 12:42:54,271 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 293.0) internal successors, (1172), 4 states have internal predecessors, (1172), 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) [2022-12-13 12:42:54,271 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 293.0) internal successors, (1172), 4 states have internal predecessors, (1172), 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) [2022-12-13 12:42:54,271 INFO L175 Difference]: Start difference. First operand has 49 places, 38 transitions, 158 flow. Second operand 3 states and 442 transitions. [2022-12-13 12:42:54,271 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 66 transitions, 412 flow [2022-12-13 12:42:54,278 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 66 transitions, 402 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 12:42:54,279 INFO L231 Difference]: Finished difference. Result has 48 places, 38 transitions, 159 flow [2022-12-13 12:42:54,279 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=293, PETRI_DIFFERENCE_MINUEND_FLOW=151, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=159, PETRI_PLACES=48, PETRI_TRANSITIONS=38} [2022-12-13 12:42:54,279 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, -2 predicate places. [2022-12-13 12:42:54,280 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 38 transitions, 159 flow [2022-12-13 12:42:54,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 141.66666666666666) internal successors, (425), 3 states have internal predecessors, (425), 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) [2022-12-13 12:42:54,280 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:42:54,280 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:42:54,288 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/mathsat -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)] Ended with exit code 0 [2022-12-13 12:42:54,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 12:42:54,482 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 12:42:54,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:42:54,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1799218180, now seen corresponding path program 2 times [2022-12-13 12:42:54,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 12:42:54,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [687652737] [2022-12-13 12:42:54,485 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 12:42:54,486 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 [2022-12-13 12:42:54,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 12:42:54,489 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 12:42:54,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-12-13 12:42:54,607 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 12:42:54,608 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 12:42:54,612 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 12:42:54,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:42:54,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:42:54,645 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 12:42:54,645 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 12:42:54,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [687652737] [2022-12-13 12:42:54,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [687652737] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:42:54,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:42:54,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:42:54,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075273218] [2022-12-13 12:42:54,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:42:54,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 12:42:54,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 12:42:54,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 12:42:54,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 12:42:54,650 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 293 [2022-12-13 12:42:54,650 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 38 transitions, 159 flow. Second operand has 4 states, 4 states have (on average 138.75) internal successors, (555), 4 states have internal predecessors, (555), 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) [2022-12-13 12:42:54,650 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:42:54,650 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 293 [2022-12-13 12:42:54,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:42:54,839 INFO L130 PetriNetUnfolder]: 485/821 cut-off events. [2022-12-13 12:42:54,839 INFO L131 PetriNetUnfolder]: For 725/727 co-relation queries the response was YES. [2022-12-13 12:42:54,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2522 conditions, 821 events. 485/821 cut-off events. For 725/727 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 3779 event pairs, 95 based on Foata normal form. 2/820 useless extension candidates. Maximal degree in co-relation 2513. Up to 471 conditions per place. [2022-12-13 12:42:54,842 INFO L137 encePairwiseOnDemand]: 290/293 looper letters, 47 selfloop transitions, 1 changer transitions 31/82 dead transitions. [2022-12-13 12:42:54,842 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 82 transitions, 518 flow [2022-12-13 12:42:54,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 12:42:54,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 12:42:54,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 582 transitions. [2022-12-13 12:42:54,844 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49658703071672355 [2022-12-13 12:42:54,844 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 582 transitions. [2022-12-13 12:42:54,844 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 582 transitions. [2022-12-13 12:42:54,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:42:54,845 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 582 transitions. [2022-12-13 12:42:54,845 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 145.5) internal successors, (582), 4 states have internal predecessors, (582), 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) [2022-12-13 12:42:54,846 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 293.0) internal successors, (1465), 5 states have internal predecessors, (1465), 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) [2022-12-13 12:42:54,846 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 293.0) internal successors, (1465), 5 states have internal predecessors, (1465), 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) [2022-12-13 12:42:54,846 INFO L175 Difference]: Start difference. First operand has 48 places, 38 transitions, 159 flow. Second operand 4 states and 582 transitions. [2022-12-13 12:42:54,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 82 transitions, 518 flow [2022-12-13 12:42:54,851 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 82 transitions, 508 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-12-13 12:42:54,852 INFO L231 Difference]: Finished difference. Result has 51 places, 38 transitions, 160 flow [2022-12-13 12:42:54,852 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=293, PETRI_DIFFERENCE_MINUEND_FLOW=153, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=160, PETRI_PLACES=51, PETRI_TRANSITIONS=38} [2022-12-13 12:42:54,852 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, 1 predicate places. [2022-12-13 12:42:54,852 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 38 transitions, 160 flow [2022-12-13 12:42:54,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 138.75) internal successors, (555), 4 states have internal predecessors, (555), 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) [2022-12-13 12:42:54,852 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:42:54,853 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:42:54,863 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2022-12-13 12:42:55,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 12:42:55,054 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 12:42:55,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:42:55,055 INFO L85 PathProgramCache]: Analyzing trace with hash 259808878, now seen corresponding path program 3 times [2022-12-13 12:42:55,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 12:42:55,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [356997754] [2022-12-13 12:42:55,057 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 12:42:55,058 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 [2022-12-13 12:42:55,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 12:42:55,061 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 12:42:55,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-12-13 12:42:55,205 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-13 12:42:55,205 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 12:42:55,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 12:42:55,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:42:55,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:42:55,235 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 12:42:55,236 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 12:42:55,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [356997754] [2022-12-13 12:42:55,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [356997754] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:42:55,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:42:55,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:42:55,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424685124] [2022-12-13 12:42:55,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:42:55,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 12:42:55,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 12:42:55,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 12:42:55,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 12:42:55,241 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 293 [2022-12-13 12:42:55,242 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 38 transitions, 160 flow. Second operand has 4 states, 4 states have (on average 138.75) internal successors, (555), 4 states have internal predecessors, (555), 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) [2022-12-13 12:42:55,242 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:42:55,242 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 293 [2022-12-13 12:42:55,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:42:55,410 INFO L130 PetriNetUnfolder]: 735/1260 cut-off events. [2022-12-13 12:42:55,410 INFO L131 PetriNetUnfolder]: For 1238/1238 co-relation queries the response was YES. [2022-12-13 12:42:55,411 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3758 conditions, 1260 events. 735/1260 cut-off events. For 1238/1238 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 6250 event pairs, 127 based on Foata normal form. 1/1248 useless extension candidates. Maximal degree in co-relation 3748. Up to 704 conditions per place. [2022-12-13 12:42:55,412 INFO L137 encePairwiseOnDemand]: 290/293 looper letters, 39 selfloop transitions, 1 changer transitions 35/78 dead transitions. [2022-12-13 12:42:55,412 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 78 transitions, 484 flow [2022-12-13 12:42:55,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 12:42:55,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 12:42:55,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 582 transitions. [2022-12-13 12:42:55,414 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49658703071672355 [2022-12-13 12:42:55,414 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 582 transitions. [2022-12-13 12:42:55,414 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 582 transitions. [2022-12-13 12:42:55,415 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:42:55,415 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 582 transitions. [2022-12-13 12:42:55,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 145.5) internal successors, (582), 4 states have internal predecessors, (582), 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) [2022-12-13 12:42:55,417 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 293.0) internal successors, (1465), 5 states have internal predecessors, (1465), 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) [2022-12-13 12:42:55,417 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 293.0) internal successors, (1465), 5 states have internal predecessors, (1465), 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) [2022-12-13 12:42:55,417 INFO L175 Difference]: Start difference. First operand has 51 places, 38 transitions, 160 flow. Second operand 4 states and 582 transitions. [2022-12-13 12:42:55,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 78 transitions, 484 flow [2022-12-13 12:42:55,425 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 78 transitions, 480 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-12-13 12:42:55,426 INFO L231 Difference]: Finished difference. Result has 53 places, 38 transitions, 164 flow [2022-12-13 12:42:55,426 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=293, PETRI_DIFFERENCE_MINUEND_FLOW=157, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=164, PETRI_PLACES=53, PETRI_TRANSITIONS=38} [2022-12-13 12:42:55,426 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, 3 predicate places. [2022-12-13 12:42:55,427 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 38 transitions, 164 flow [2022-12-13 12:42:55,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 138.75) internal successors, (555), 4 states have internal predecessors, (555), 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) [2022-12-13 12:42:55,427 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:42:55,427 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:42:55,441 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-12-13 12:42:55,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 12:42:55,629 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 12:42:55,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:42:55,630 INFO L85 PathProgramCache]: Analyzing trace with hash -299211014, now seen corresponding path program 4 times [2022-12-13 12:42:55,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 12:42:55,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2089462676] [2022-12-13 12:42:55,632 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 12:42:55,632 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 [2022-12-13 12:42:55,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 12:42:55,635 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/mathsat -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) [2022-12-13 12:42:55,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-12-13 12:42:55,786 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 12:42:55,786 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2022-12-13 12:42:55,786 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:42:55,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:42:55,904 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 12:42:55,904 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 12:42:55,905 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (15 of 16 remaining) [2022-12-13 12:42:55,906 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONMEMORY_LEAK (14 of 16 remaining) [2022-12-13 12:42:55,906 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 16 remaining) [2022-12-13 12:42:55,907 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 16 remaining) [2022-12-13 12:42:55,907 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 16 remaining) [2022-12-13 12:42:55,907 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 16 remaining) [2022-12-13 12:42:55,907 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 16 remaining) [2022-12-13 12:42:55,907 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 16 remaining) [2022-12-13 12:42:55,907 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 16 remaining) [2022-12-13 12:42:55,907 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 16 remaining) [2022-12-13 12:42:55,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK (5 of 16 remaining) [2022-12-13 12:42:55,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 16 remaining) [2022-12-13 12:42:55,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 16 remaining) [2022-12-13 12:42:55,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 16 remaining) [2022-12-13 12:42:55,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 16 remaining) [2022-12-13 12:42:55,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 16 remaining) [2022-12-13 12:42:55,930 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2022-12-13 12:42:56,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 12:42:56,110 INFO L445 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:42:56,126 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 12:42:56,126 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 12:42:56,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 12:42:56 BasicIcfg [2022-12-13 12:42:56,214 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 12:42:56,215 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 12:42:56,215 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 12:42:56,215 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 12:42:56,215 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:42:38" (3/4) ... [2022-12-13 12:42:56,218 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 12:42:56,218 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 12:42:56,219 INFO L158 Benchmark]: Toolchain (without parser) took 19258.08ms. Allocated memory was 56.6MB in the beginning and 446.7MB in the end (delta: 390.1MB). Free memory was 37.0MB in the beginning and 140.3MB in the end (delta: -103.3MB). Peak memory consumption was 287.2MB. Max. memory is 16.1GB. [2022-12-13 12:42:56,219 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 44.0MB. Free memory was 22.5MB in the beginning and 22.5MB in the end (delta: 42.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:42:56,219 INFO L158 Benchmark]: CACSL2BoogieTranslator took 427.20ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 36.8MB in the beginning and 47.3MB in the end (delta: -10.5MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. [2022-12-13 12:42:56,220 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.57ms. Allocated memory is still 69.2MB. Free memory was 47.3MB in the beginning and 44.5MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:42:56,220 INFO L158 Benchmark]: Boogie Preprocessor took 32.39ms. Allocated memory is still 69.2MB. Free memory was 44.5MB in the beginning and 42.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:42:56,220 INFO L158 Benchmark]: RCFGBuilder took 589.67ms. Allocated memory is still 69.2MB. Free memory was 42.1MB in the beginning and 44.5MB in the end (delta: -2.3MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. [2022-12-13 12:42:56,221 INFO L158 Benchmark]: TraceAbstraction took 18152.32ms. Allocated memory was 69.2MB in the beginning and 446.7MB in the end (delta: 377.5MB). Free memory was 43.8MB in the beginning and 141.3MB in the end (delta: -97.5MB). Peak memory consumption was 281.3MB. Max. memory is 16.1GB. [2022-12-13 12:42:56,221 INFO L158 Benchmark]: Witness Printer took 3.59ms. Allocated memory is still 446.7MB. Free memory was 141.3MB in the beginning and 140.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:42:56,223 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 44.0MB. Free memory was 22.5MB in the beginning and 22.5MB in the end (delta: 42.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 427.20ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 36.8MB in the beginning and 47.3MB in the end (delta: -10.5MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.57ms. Allocated memory is still 69.2MB. Free memory was 47.3MB in the beginning and 44.5MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.39ms. Allocated memory is still 69.2MB. Free memory was 44.5MB in the beginning and 42.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 589.67ms. Allocated memory is still 69.2MB. Free memory was 42.1MB in the beginning and 44.5MB in the end (delta: -2.3MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. * TraceAbstraction took 18152.32ms. Allocated memory was 69.2MB in the beginning and 446.7MB in the end (delta: 377.5MB). Free memory was 43.8MB in the beginning and 141.3MB in the end (delta: -97.5MB). Peak memory consumption was 281.3MB. Max. memory is 16.1GB. * Witness Printer took 3.59ms. Allocated memory is still 446.7MB. Free memory was 141.3MB in the beginning and 140.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.6s, 157 PlacesBefore, 50 PlacesAfterwards, 146 TransitionsBefore, 37 TransitionsAfterwards, 3490 CoEnabledTransitionPairs, 7 FixpointIterations, 52 TrivialSequentialCompositions, 82 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 2 ChoiceCompositions, 143 TotalNumberOfCompositions, 8779 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3967, independent: 3752, independent conditional: 0, independent unconditional: 3752, dependent: 215, dependent conditional: 0, dependent unconditional: 215, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1870, independent: 1817, independent conditional: 0, independent unconditional: 1817, dependent: 53, dependent conditional: 0, dependent unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3967, independent: 1935, independent conditional: 0, independent unconditional: 1935, dependent: 162, dependent conditional: 0, dependent unconditional: 162, unknown: 1870, unknown conditional: 0, unknown unconditional: 1870] , Statistics on independence cache: Total cache size (in pairs): 149, Positive cache size: 131, Positive conditional cache size: 0, Positive unconditional cache size: 131, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p0_EAX = 0; [L714] 0 int __unbuffered_p3_EAX = 0; [L716] 0 int __unbuffered_p3_EBX = 0; [L718] 0 int a = 0; [L720] 0 int b = 0; [L721] 0 _Bool main$tmp_guard0; [L722] 0 _Bool main$tmp_guard1; [L724] 0 int x = 0; [L726] 0 int y = 0; [L728] 0 int z = 0; [L729] 0 _Bool z$flush_delayed; [L730] 0 int z$mem_tmp; [L731] 0 _Bool z$r_buff0_thd0; [L732] 0 _Bool z$r_buff0_thd1; [L733] 0 _Bool z$r_buff0_thd2; [L734] 0 _Bool z$r_buff0_thd3; [L735] 0 _Bool z$r_buff0_thd4; [L736] 0 _Bool z$r_buff1_thd0; [L737] 0 _Bool z$r_buff1_thd1; [L738] 0 _Bool z$r_buff1_thd2; [L739] 0 _Bool z$r_buff1_thd3; [L740] 0 _Bool z$r_buff1_thd4; [L741] 0 _Bool z$read_delayed; [L742] 0 int *z$read_delayed_var; [L743] 0 int z$w_buff0; [L744] 0 _Bool z$w_buff0_used; [L745] 0 int z$w_buff1; [L746] 0 _Bool z$w_buff1_used; [L747] 0 _Bool weak$$choice0; [L748] 0 _Bool weak$$choice2; [L846] 0 pthread_t t1221; [L847] FCALL, FORK 0 pthread_create(&t1221, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1221, ((void *)0), P0, ((void *)0))=0, t1221={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L848] 0 pthread_t t1222; [L849] FCALL, FORK 0 pthread_create(&t1222, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1222, ((void *)0), P1, ((void *)0))=1, t1221={3:0}, t1222={7:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L850] 0 pthread_t t1223; [L851] FCALL, FORK 0 pthread_create(&t1223, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1223, ((void *)0), P2, ((void *)0))=2, t1221={3:0}, t1222={7:0}, t1223={11:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L852] 0 pthread_t t1224; [L853] FCALL, FORK 0 pthread_create(&t1224, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1224, ((void *)0), P3, ((void *)0))=3, t1221={3:0}, t1222={7:0}, t1223={11:0}, t1224={15:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L802] 4 z$w_buff1 = z$w_buff0 [L803] 4 z$w_buff0 = 2 [L804] 4 z$w_buff1_used = z$w_buff0_used [L805] 4 z$w_buff0_used = (_Bool)1 [L806] CALL 4 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L18] COND FALSE 4 !(!expression) [L806] RET 4 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L807] 4 z$r_buff1_thd0 = z$r_buff0_thd0 [L808] 4 z$r_buff1_thd1 = z$r_buff0_thd1 [L809] 4 z$r_buff1_thd2 = z$r_buff0_thd2 [L810] 4 z$r_buff1_thd3 = z$r_buff0_thd3 [L811] 4 z$r_buff1_thd4 = z$r_buff0_thd4 [L812] 4 z$r_buff0_thd4 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L815] 4 a = 1 [L818] 4 __unbuffered_p3_EAX = a VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L821] 4 __unbuffered_p3_EBX = b VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L752] 1 b = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L755] 1 __unbuffered_p0_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L760] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L762] 1 return 0; [L767] 2 x = 1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L770] 2 y = 1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L782] 3 y = 2 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L785] 3 z = 1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L788] 3 z = z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L789] 3 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L790] 3 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L791] 3 z$r_buff0_thd3 = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L792] 3 z$r_buff1_thd3 = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L775] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L777] 2 return 0; [L824] 4 z = z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L825] 4 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L826] 4 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L827] 4 z$r_buff0_thd4 = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L828] 4 z$r_buff1_thd4 = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, z=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L795] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L797] 3 return 0; [L831] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L833] 4 return 0; [L855] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L857] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L857] RET 0 assume_abort_if_not(main$tmp_guard0) [L859] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L860] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L861] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L862] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L863] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, t1221={3:0}, t1222={7:0}, t1223={11:0}, t1224={15:0}, weak$$choice0=0, weak$$choice2=0, x=1, y=2, z=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L866] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L867] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L868] 0 z$flush_delayed = weak$$choice2 [L869] 0 z$mem_tmp = z [L870] 0 z = !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff1) [L871] 0 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff0)) [L872] 0 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1)) [L873] 0 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used)) [L874] 0 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L875] 0 z$r_buff0_thd0 = weak$$choice2 ? z$r_buff0_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff0_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0)) [L876] 0 z$r_buff1_thd0 = weak$$choice2 ? z$r_buff1_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L877] 0 main$tmp_guard1 = !(y == 2 && z == 2 && __unbuffered_p0_EAX == 0 && __unbuffered_p3_EAX == 1 && __unbuffered_p3_EBX == 0) [L878] 0 z = z$flush_delayed ? z$mem_tmp : z [L879] 0 z$flush_delayed = (_Bool)0 [L881] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\old(expression)=1, \old(expression)=0, \result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, expression=1, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=1, y=2, z=2, z$flush_delayed=0, z$mem_tmp=2, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 844]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 847]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 851]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 849]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 853]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 186 locations, 16 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 18.0s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 4.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 383 SdHoareTripleChecker+Valid, 1.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 329 mSDsluCounter, 46 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 39 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1644 IncrementalHoareTripleChecker+Invalid, 1682 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 7 mSDtfsCounter, 1644 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 174 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=222occurred in iteration=5, InterpolantAutomatonStates: 48, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 203 NumberOfCodeBlocks, 203 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 167 ConstructedInterpolants, 17 QuantifiedInterpolants, 1506 SizeOfPredicates, 18 NumberOfNonLiveVariables, 1538 ConjunctsInSsa, 67 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 12:42:56,241 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67d63dcf-bf97-4bbf-b1bb-13801dea3645/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample