./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/safe035_power.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_9045d287-3303-4ba7-9bb5-755a32f1d12b/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9045d287-3303-4ba7-9bb5-755a32f1d12b/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_9045d287-3303-4ba7-9bb5-755a32f1d12b/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9045d287-3303-4ba7-9bb5-755a32f1d12b/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/safe035_power.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9045d287-3303-4ba7-9bb5-755a32f1d12b/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_9045d287-3303-4ba7-9bb5-755a32f1d12b/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 6415bffc70cf05f8f6460106962f2f9c59b321fd2fc94a45894cc3c1f3d85b66 --- 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 13:24:54,468 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 13:24:54,470 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 13:24:54,484 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 13:24:54,485 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 13:24:54,485 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 13:24:54,486 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 13:24:54,487 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 13:24:54,488 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 13:24:54,489 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 13:24:54,489 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 13:24:54,490 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 13:24:54,490 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 13:24:54,491 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 13:24:54,492 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 13:24:54,493 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 13:24:54,493 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 13:24:54,494 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 13:24:54,495 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 13:24:54,496 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 13:24:54,497 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 13:24:54,498 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 13:24:54,499 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 13:24:54,500 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 13:24:54,502 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 13:24:54,502 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 13:24:54,503 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 13:24:54,503 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 13:24:54,503 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 13:24:54,504 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 13:24:54,504 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 13:24:54,505 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 13:24:54,505 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 13:24:54,506 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 13:24:54,507 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 13:24:54,507 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 13:24:54,507 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 13:24:54,508 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 13:24:54,508 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 13:24:54,508 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 13:24:54,509 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 13:24:54,509 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9045d287-3303-4ba7-9bb5-755a32f1d12b/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-12-13 13:24:54,546 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 13:24:54,546 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 13:24:54,547 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 13:24:54,547 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 13:24:54,548 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 13:24:54,548 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 13:24:54,548 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 13:24:54,548 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 13:24:54,549 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 13:24:54,549 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 13:24:54,549 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 13:24:54,549 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 13:24:54,549 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 13:24:54,549 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 13:24:54,550 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 13:24:54,550 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 13:24:54,550 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 13:24:54,550 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 13:24:54,550 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 13:24:54,550 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 13:24:54,551 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 13:24:54,551 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 13:24:54,551 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 13:24:54,561 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 13:24:54,561 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 13:24:54,562 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:24:54,562 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 13:24:54,562 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 13:24:54,562 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 13:24:54,562 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 13:24:54,562 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 13:24:54,563 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 13:24:54,563 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 13:24:54,563 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 13:24:54,563 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_9045d287-3303-4ba7-9bb5-755a32f1d12b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9045d287-3303-4ba7-9bb5-755a32f1d12b/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6415bffc70cf05f8f6460106962f2f9c59b321fd2fc94a45894cc3c1f3d85b66 [2022-12-13 13:24:54,750 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 13:24:54,765 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 13:24:54,767 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 13:24:54,768 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 13:24:54,768 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 13:24:54,769 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9045d287-3303-4ba7-9bb5-755a32f1d12b/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-wmm/safe035_power.i [2022-12-13 13:24:57,413 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 13:24:57,607 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 13:24:57,608 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9045d287-3303-4ba7-9bb5-755a32f1d12b/sv-benchmarks/c/pthread-wmm/safe035_power.i [2022-12-13 13:24:57,618 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9045d287-3303-4ba7-9bb5-755a32f1d12b/bin/uautomizer-uyxdKDjOR8/data/45744a1a3/5a6d4ef928ad46c09014a25765513d2a/FLAG6ee9fd234 [2022-12-13 13:24:57,629 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9045d287-3303-4ba7-9bb5-755a32f1d12b/bin/uautomizer-uyxdKDjOR8/data/45744a1a3/5a6d4ef928ad46c09014a25765513d2a [2022-12-13 13:24:57,633 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 13:24:57,634 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 13:24:57,635 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 13:24:57,635 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 13:24:57,638 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 13:24:57,639 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:24:57" (1/1) ... [2022-12-13 13:24:57,639 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@109a46a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:24:57, skipping insertion in model container [2022-12-13 13:24:57,640 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:24:57" (1/1) ... [2022-12-13 13:24:57,645 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 13:24:57,683 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 13:24:57,802 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_9045d287-3303-4ba7-9bb5-755a32f1d12b/sv-benchmarks/c/pthread-wmm/safe035_power.i[947,960] [2022-12-13 13:24:57,902 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:24:57,902 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:24:57,903 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:24:57,905 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:24:57,905 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:24:57,906 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:24:57,906 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:24:57,908 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:24:57,908 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:24:57,908 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:24:57,909 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:24:57,909 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:24:57,910 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:24:57,912 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:24:57,912 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:24:57,918 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:24:57,918 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:24:57,920 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:24:57,920 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:24:57,921 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:24:57,921 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:24:57,923 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:24:57,923 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:24:57,925 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:24:57,925 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:24:57,930 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:24:57,931 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:24:57,932 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:24:57,933 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:24:57,933 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:24:57,938 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:24:57,939 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:24:57,939 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:24:57,941 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:24:57,941 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:24:57,948 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:24:57,949 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:24:57,957 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 13:24:57,966 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_9045d287-3303-4ba7-9bb5-755a32f1d12b/sv-benchmarks/c/pthread-wmm/safe035_power.i[947,960] [2022-12-13 13:24:57,981 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:24:57,982 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:24:57,982 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:24:57,983 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:24:57,983 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:24:57,984 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:24:57,984 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:24:57,985 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:24:57,985 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:24:57,986 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:24:57,986 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:24:57,986 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:24:57,986 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:24:57,988 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:24:57,988 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:24:57,991 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:24:57,992 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:24:57,993 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:24:57,993 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:24:57,993 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:24:57,994 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:24:57,994 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:24:57,995 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:24:57,996 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:24:57,996 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:24:57,999 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:24:57,999 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:24:58,000 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:24:58,001 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:24:58,001 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:24:58,003 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:24:58,004 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:24:58,004 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:24:58,005 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:24:58,005 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:24:58,009 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:24:58,010 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:24:58,032 INFO L208 MainTranslator]: Completed translation [2022-12-13 13:24:58,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:24:58 WrapperNode [2022-12-13 13:24:58,032 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 13:24:58,033 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 13:24:58,033 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 13:24:58,033 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 13:24:58,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:24:58" (1/1) ... [2022-12-13 13:24:58,051 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:24:58" (1/1) ... [2022-12-13 13:24:58,072 INFO L138 Inliner]: procedures = 176, calls = 60, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 168 [2022-12-13 13:24:58,072 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 13:24:58,073 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 13:24:58,073 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 13:24:58,073 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 13:24:58,081 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:24:58" (1/1) ... [2022-12-13 13:24:58,081 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:24:58" (1/1) ... [2022-12-13 13:24:58,083 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:24:58" (1/1) ... [2022-12-13 13:24:58,084 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:24:58" (1/1) ... [2022-12-13 13:24:58,090 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:24:58" (1/1) ... [2022-12-13 13:24:58,092 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:24:58" (1/1) ... [2022-12-13 13:24:58,094 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:24:58" (1/1) ... [2022-12-13 13:24:58,095 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:24:58" (1/1) ... [2022-12-13 13:24:58,099 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 13:24:58,099 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 13:24:58,100 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 13:24:58,100 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 13:24:58,100 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:24:58" (1/1) ... [2022-12-13 13:24:58,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:24:58,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9045d287-3303-4ba7-9bb5-755a32f1d12b/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:24:58,126 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9045d287-3303-4ba7-9bb5-755a32f1d12b/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 13:24:58,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9045d287-3303-4ba7-9bb5-755a32f1d12b/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 13:24:58,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 13:24:58,162 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 13:24:58,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 13:24:58,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 13:24:58,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 13:24:58,163 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 13:24:58,163 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 13:24:58,163 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 13:24:58,163 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 13:24:58,163 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-13 13:24:58,163 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-13 13:24:58,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 13:24:58,164 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 13:24:58,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 13:24:58,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 13:24:58,165 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 13:24:58,275 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 13:24:58,276 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 13:24:58,649 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 13:24:58,766 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 13:24:58,767 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 13:24:58,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:24:58 BoogieIcfgContainer [2022-12-13 13:24:58,768 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 13:24:58,770 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 13:24:58,770 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 13:24:58,773 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 13:24:58,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 01:24:57" (1/3) ... [2022-12-13 13:24:58,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a2b2dca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:24:58, skipping insertion in model container [2022-12-13 13:24:58,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:24:58" (2/3) ... [2022-12-13 13:24:58,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a2b2dca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:24:58, skipping insertion in model container [2022-12-13 13:24:58,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:24:58" (3/3) ... [2022-12-13 13:24:58,775 INFO L112 eAbstractionObserver]: Analyzing ICFG safe035_power.i [2022-12-13 13:24:58,789 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 13:24:58,789 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2022-12-13 13:24:58,789 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 13:24:58,829 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 13:24:58,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 137 places, 129 transitions, 273 flow [2022-12-13 13:24:58,916 INFO L130 PetriNetUnfolder]: 2/126 cut-off events. [2022-12-13 13:24:58,916 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:24:58,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 126 events. 2/126 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 86 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 83. Up to 2 conditions per place. [2022-12-13 13:24:58,921 INFO L82 GeneralOperation]: Start removeDead. Operand has 137 places, 129 transitions, 273 flow [2022-12-13 13:24:58,925 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 134 places, 126 transitions, 261 flow [2022-12-13 13:24:58,927 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 13:24:58,935 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 134 places, 126 transitions, 261 flow [2022-12-13 13:24:58,937 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 134 places, 126 transitions, 261 flow [2022-12-13 13:24:58,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 134 places, 126 transitions, 261 flow [2022-12-13 13:24:58,956 INFO L130 PetriNetUnfolder]: 2/126 cut-off events. [2022-12-13 13:24:58,956 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:24:58,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 126 events. 2/126 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 86 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 83. Up to 2 conditions per place. [2022-12-13 13:24:58,958 INFO L119 LiptonReduction]: Number of co-enabled transitions 2648 [2022-12-13 13:25:04,193 INFO L134 LiptonReduction]: Checked pairs total: 8100 [2022-12-13 13:25:04,193 INFO L136 LiptonReduction]: Total number of compositions: 124 [2022-12-13 13:25:04,203 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 13:25:04,207 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;@39a5dc59, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 13:25:04,207 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-12-13 13:25:04,208 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 13:25:04,208 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:25:04,208 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:25:04,209 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 13:25:04,209 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 13:25:04,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:25:04,213 INFO L85 PathProgramCache]: Analyzing trace with hash 639, now seen corresponding path program 1 times [2022-12-13 13:25:04,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:25:04,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250303184] [2022-12-13 13:25:04,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:25:04,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:25:04,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:25:04,308 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 13:25:04,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:25:04,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250303184] [2022-12-13 13:25:04,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250303184] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:25:04,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:25:04,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 13:25:04,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61478444] [2022-12-13 13:25:04,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:25:04,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 13:25:04,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:25:04,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 13:25:04,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 13:25:04,341 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 253 [2022-12-13 13:25:04,343 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 33 transitions, 75 flow. Second operand has 2 states, 2 states have (on average 111.5) internal successors, (223), 2 states have internal predecessors, (223), 0 states have call successors, (0), 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 13:25:04,343 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:25:04,343 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 253 [2022-12-13 13:25:04,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:25:05,074 INFO L130 PetriNetUnfolder]: 3035/4368 cut-off events. [2022-12-13 13:25:05,075 INFO L131 PetriNetUnfolder]: For 29/29 co-relation queries the response was YES. [2022-12-13 13:25:05,080 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8811 conditions, 4368 events. 3035/4368 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 20424 event pairs, 3035 based on Foata normal form. 0/3767 useless extension candidates. Maximal degree in co-relation 8800. Up to 4367 conditions per place. [2022-12-13 13:25:05,093 INFO L137 encePairwiseOnDemand]: 247/253 looper letters, 26 selfloop transitions, 0 changer transitions 0/27 dead transitions. [2022-12-13 13:25:05,093 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 27 transitions, 115 flow [2022-12-13 13:25:05,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 13:25:05,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 13:25:05,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 254 transitions. [2022-12-13 13:25:05,106 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5019762845849802 [2022-12-13 13:25:05,107 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 254 transitions. [2022-12-13 13:25:05,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 254 transitions. [2022-12-13 13:25:05,109 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:25:05,111 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 254 transitions. [2022-12-13 13:25:05,113 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 127.0) internal successors, (254), 2 states have internal predecessors, (254), 0 states have call successors, (0), 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 13:25:05,118 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 253.0) internal successors, (759), 3 states have internal predecessors, (759), 0 states have call successors, (0), 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 13:25:05,118 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 253.0) internal successors, (759), 3 states have internal predecessors, (759), 0 states have call successors, (0), 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 13:25:05,120 INFO L175 Difference]: Start difference. First operand has 43 places, 33 transitions, 75 flow. Second operand 2 states and 254 transitions. [2022-12-13 13:25:05,121 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 27 transitions, 115 flow [2022-12-13 13:25:05,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 27 transitions, 112 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 13:25:05,125 INFO L231 Difference]: Finished difference. Result has 35 places, 27 transitions, 60 flow [2022-12-13 13:25:05,126 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=253, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=60, PETRI_PLACES=35, PETRI_TRANSITIONS=27} [2022-12-13 13:25:05,130 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, -8 predicate places. [2022-12-13 13:25:05,130 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 27 transitions, 60 flow [2022-12-13 13:25:05,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 111.5) internal successors, (223), 2 states have internal predecessors, (223), 0 states have call successors, (0), 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 13:25:05,130 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:25:05,130 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:25:05,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 13:25:05,131 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P2Err0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 13:25:05,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:25:05,131 INFO L85 PathProgramCache]: Analyzing trace with hash -863746510, now seen corresponding path program 1 times [2022-12-13 13:25:05,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:25:05,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134797484] [2022-12-13 13:25:05,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:25:05,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:25:05,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:25:05,390 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 13:25:05,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:25:05,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134797484] [2022-12-13 13:25:05,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134797484] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:25:05,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:25:05,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 13:25:05,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860750175] [2022-12-13 13:25:05,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:25:05,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:25:05,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:25:05,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:25:05,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:25:05,397 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 253 [2022-12-13 13:25:05,397 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 27 transitions, 60 flow. Second operand has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 0 states have call successors, (0), 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 13:25:05,398 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:25:05,398 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 253 [2022-12-13 13:25:05,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:25:06,047 INFO L130 PetriNetUnfolder]: 2591/3744 cut-off events. [2022-12-13 13:25:06,047 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:25:06,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7561 conditions, 3744 events. 2591/3744 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 17646 event pairs, 371 based on Foata normal form. 0/3383 useless extension candidates. Maximal degree in co-relation 7558. Up to 3121 conditions per place. [2022-12-13 13:25:06,058 INFO L137 encePairwiseOnDemand]: 250/253 looper letters, 35 selfloop transitions, 2 changer transitions 2/40 dead transitions. [2022-12-13 13:25:06,058 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 40 transitions, 164 flow [2022-12-13 13:25:06,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:25:06,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:25:06,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 370 transitions. [2022-12-13 13:25:06,060 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4874835309617918 [2022-12-13 13:25:06,060 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 370 transitions. [2022-12-13 13:25:06,060 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 370 transitions. [2022-12-13 13:25:06,060 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:25:06,060 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 370 transitions. [2022-12-13 13:25:06,061 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 123.33333333333333) internal successors, (370), 3 states have internal predecessors, (370), 0 states have call successors, (0), 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 13:25:06,062 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 253.0) internal successors, (1012), 4 states have internal predecessors, (1012), 0 states have call successors, (0), 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 13:25:06,062 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 253.0) internal successors, (1012), 4 states have internal predecessors, (1012), 0 states have call successors, (0), 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 13:25:06,062 INFO L175 Difference]: Start difference. First operand has 35 places, 27 transitions, 60 flow. Second operand 3 states and 370 transitions. [2022-12-13 13:25:06,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 40 transitions, 164 flow [2022-12-13 13:25:06,063 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 40 transitions, 164 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 13:25:06,063 INFO L231 Difference]: Finished difference. Result has 36 places, 25 transitions, 60 flow [2022-12-13 13:25:06,063 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=253, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=60, PETRI_PLACES=36, PETRI_TRANSITIONS=25} [2022-12-13 13:25:06,064 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, -7 predicate places. [2022-12-13 13:25:06,064 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 25 transitions, 60 flow [2022-12-13 13:25:06,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 0 states have call successors, (0), 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 13:25:06,064 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:25:06,064 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:25:06,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 13:25:06,065 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 13:25:06,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:25:06,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1131640250, now seen corresponding path program 1 times [2022-12-13 13:25:06,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:25:06,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811667053] [2022-12-13 13:25:06,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:25:06,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:25:06,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:25:06,321 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 13:25:06,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:25:06,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811667053] [2022-12-13 13:25:06,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811667053] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:25:06,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:25:06,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 13:25:06,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86803262] [2022-12-13 13:25:06,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:25:06,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:25:06,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:25:06,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:25:06,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:25:06,326 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 253 [2022-12-13 13:25:06,326 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 25 transitions, 60 flow. Second operand has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:25:06,327 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:25:06,327 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 253 [2022-12-13 13:25:06,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:25:06,847 INFO L130 PetriNetUnfolder]: 1910/2793 cut-off events. [2022-12-13 13:25:06,847 INFO L131 PetriNetUnfolder]: For 112/112 co-relation queries the response was YES. [2022-12-13 13:25:06,849 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5781 conditions, 2793 events. 1910/2793 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 12292 event pairs, 905 based on Foata normal form. 0/2702 useless extension candidates. Maximal degree in co-relation 5777. Up to 1516 conditions per place. [2022-12-13 13:25:06,854 INFO L137 encePairwiseOnDemand]: 250/253 looper letters, 34 selfloop transitions, 2 changer transitions 0/37 dead transitions. [2022-12-13 13:25:06,854 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 37 transitions, 156 flow [2022-12-13 13:25:06,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:25:06,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:25:06,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 367 transitions. [2022-12-13 13:25:06,856 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48353096179183136 [2022-12-13 13:25:06,856 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 367 transitions. [2022-12-13 13:25:06,856 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 367 transitions. [2022-12-13 13:25:06,856 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:25:06,856 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 367 transitions. [2022-12-13 13:25:06,857 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 0 states have call successors, (0), 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 13:25:06,858 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 253.0) internal successors, (1012), 4 states have internal predecessors, (1012), 0 states have call successors, (0), 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 13:25:06,858 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 253.0) internal successors, (1012), 4 states have internal predecessors, (1012), 0 states have call successors, (0), 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 13:25:06,859 INFO L175 Difference]: Start difference. First operand has 36 places, 25 transitions, 60 flow. Second operand 3 states and 367 transitions. [2022-12-13 13:25:06,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 37 transitions, 156 flow [2022-12-13 13:25:06,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 37 transitions, 152 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 13:25:06,860 INFO L231 Difference]: Finished difference. Result has 36 places, 25 transitions, 64 flow [2022-12-13 13:25:06,860 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=253, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=36, PETRI_TRANSITIONS=25} [2022-12-13 13:25:06,860 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, -7 predicate places. [2022-12-13 13:25:06,861 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 25 transitions, 64 flow [2022-12-13 13:25:06,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:25:06,861 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:25:06,861 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:25:06,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 13:25:06,861 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 13:25:06,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:25:06,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1131640230, now seen corresponding path program 1 times [2022-12-13 13:25:06,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:25:06,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044060995] [2022-12-13 13:25:06,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:25:06,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:25:06,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:25:07,312 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 13:25:07,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:25:07,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044060995] [2022-12-13 13:25:07,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044060995] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:25:07,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:25:07,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 13:25:07,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598442318] [2022-12-13 13:25:07,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:25:07,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 13:25:07,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:25:07,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 13:25:07,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 13:25:07,383 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 253 [2022-12-13 13:25:07,384 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 25 transitions, 64 flow. Second operand has 5 states, 5 states have (on average 97.8) internal successors, (489), 5 states have internal predecessors, (489), 0 states have call successors, (0), 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 13:25:07,384 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:25:07,384 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 253 [2022-12-13 13:25:07,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:25:07,803 INFO L130 PetriNetUnfolder]: 1831/2683 cut-off events. [2022-12-13 13:25:07,803 INFO L131 PetriNetUnfolder]: For 90/90 co-relation queries the response was YES. [2022-12-13 13:25:07,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5773 conditions, 2683 events. 1831/2683 cut-off events. For 90/90 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 12110 event pairs, 180 based on Foata normal form. 30/2713 useless extension candidates. Maximal degree in co-relation 5768. Up to 2298 conditions per place. [2022-12-13 13:25:07,810 INFO L137 encePairwiseOnDemand]: 248/253 looper letters, 44 selfloop transitions, 4 changer transitions 0/49 dead transitions. [2022-12-13 13:25:07,810 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 49 transitions, 208 flow [2022-12-13 13:25:07,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 13:25:07,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 13:25:07,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 529 transitions. [2022-12-13 13:25:07,812 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.41818181818181815 [2022-12-13 13:25:07,812 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 529 transitions. [2022-12-13 13:25:07,812 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 529 transitions. [2022-12-13 13:25:07,813 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:25:07,813 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 529 transitions. [2022-12-13 13:25:07,813 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 105.8) internal successors, (529), 5 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:25:07,815 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 253.0) internal successors, (1518), 6 states have internal predecessors, (1518), 0 states have call successors, (0), 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 13:25:07,815 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 253.0) internal successors, (1518), 6 states have internal predecessors, (1518), 0 states have call successors, (0), 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 13:25:07,815 INFO L175 Difference]: Start difference. First operand has 36 places, 25 transitions, 64 flow. Second operand 5 states and 529 transitions. [2022-12-13 13:25:07,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 49 transitions, 208 flow [2022-12-13 13:25:07,819 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 49 transitions, 204 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 13:25:07,819 INFO L231 Difference]: Finished difference. Result has 39 places, 25 transitions, 72 flow [2022-12-13 13:25:07,819 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=253, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=72, PETRI_PLACES=39, PETRI_TRANSITIONS=25} [2022-12-13 13:25:07,820 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, -4 predicate places. [2022-12-13 13:25:07,820 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 25 transitions, 72 flow [2022-12-13 13:25:07,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 97.8) internal successors, (489), 5 states have internal predecessors, (489), 0 states have call successors, (0), 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 13:25:07,820 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:25:07,820 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:25:07,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 13:25:07,820 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 13:25:07,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:25:07,821 INFO L85 PathProgramCache]: Analyzing trace with hash -721110667, now seen corresponding path program 1 times [2022-12-13 13:25:07,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:25:07,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396773674] [2022-12-13 13:25:07,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:25:07,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:25:07,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:25:08,439 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 13:25:08,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:25:08,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396773674] [2022-12-13 13:25:08,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396773674] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:25:08,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:25:08,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 13:25:08,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727059615] [2022-12-13 13:25:08,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:25:08,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 13:25:08,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:25:08,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 13:25:08,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-13 13:25:08,623 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 253 [2022-12-13 13:25:08,625 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 25 transitions, 72 flow. Second operand has 7 states, 7 states have (on average 93.42857142857143) internal successors, (654), 7 states have internal predecessors, (654), 0 states have call successors, (0), 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 13:25:08,625 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:25:08,625 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 253 [2022-12-13 13:25:08,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:25:09,283 INFO L130 PetriNetUnfolder]: 1864/2730 cut-off events. [2022-12-13 13:25:09,283 INFO L131 PetriNetUnfolder]: For 340/340 co-relation queries the response was YES. [2022-12-13 13:25:09,285 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6113 conditions, 2730 events. 1864/2730 cut-off events. For 340/340 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 12034 event pairs, 1462 based on Foata normal form. 6/2735 useless extension candidates. Maximal degree in co-relation 6107. Up to 2647 conditions per place. [2022-12-13 13:25:09,292 INFO L137 encePairwiseOnDemand]: 242/253 looper letters, 40 selfloop transitions, 13 changer transitions 0/54 dead transitions. [2022-12-13 13:25:09,292 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 54 transitions, 248 flow [2022-12-13 13:25:09,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 13:25:09,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 13:25:09,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 606 transitions. [2022-12-13 13:25:09,296 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.39920948616600793 [2022-12-13 13:25:09,297 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 606 transitions. [2022-12-13 13:25:09,297 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 606 transitions. [2022-12-13 13:25:09,297 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:25:09,298 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 606 transitions. [2022-12-13 13:25:09,300 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 101.0) internal successors, (606), 6 states have internal predecessors, (606), 0 states have call successors, (0), 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 13:25:09,305 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 253.0) internal successors, (1771), 7 states have internal predecessors, (1771), 0 states have call successors, (0), 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 13:25:09,307 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 253.0) internal successors, (1771), 7 states have internal predecessors, (1771), 0 states have call successors, (0), 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 13:25:09,307 INFO L175 Difference]: Start difference. First operand has 39 places, 25 transitions, 72 flow. Second operand 6 states and 606 transitions. [2022-12-13 13:25:09,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 54 transitions, 248 flow [2022-12-13 13:25:09,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 54 transitions, 234 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 13:25:09,310 INFO L231 Difference]: Finished difference. Result has 44 places, 37 transitions, 152 flow [2022-12-13 13:25:09,310 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=253, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=152, PETRI_PLACES=44, PETRI_TRANSITIONS=37} [2022-12-13 13:25:09,311 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, 1 predicate places. [2022-12-13 13:25:09,311 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 37 transitions, 152 flow [2022-12-13 13:25:09,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 93.42857142857143) internal successors, (654), 7 states have internal predecessors, (654), 0 states have call successors, (0), 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 13:25:09,312 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:25:09,312 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:25:09,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 13:25:09,313 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 13:25:09,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:25:09,313 INFO L85 PathProgramCache]: Analyzing trace with hash -721166467, now seen corresponding path program 2 times [2022-12-13 13:25:09,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:25:09,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550004005] [2022-12-13 13:25:09,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:25:09,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:25:09,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:25:09,585 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 13:25:09,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:25:09,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550004005] [2022-12-13 13:25:09,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550004005] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:25:09,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:25:09,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 13:25:09,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112290586] [2022-12-13 13:25:09,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:25:09,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 13:25:09,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:25:09,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 13:25:09,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 13:25:09,688 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 253 [2022-12-13 13:25:09,689 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 37 transitions, 152 flow. Second operand has 5 states, 5 states have (on average 98.0) internal successors, (490), 5 states have internal predecessors, (490), 0 states have call successors, (0), 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 13:25:09,689 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:25:09,689 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 253 [2022-12-13 13:25:09,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:25:10,051 INFO L130 PetriNetUnfolder]: 1499/2218 cut-off events. [2022-12-13 13:25:10,051 INFO L131 PetriNetUnfolder]: For 1029/1029 co-relation queries the response was YES. [2022-12-13 13:25:10,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5812 conditions, 2218 events. 1499/2218 cut-off events. For 1029/1029 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 9678 event pairs, 382 based on Foata normal form. 150/2368 useless extension candidates. Maximal degree in co-relation 5802. Up to 2145 conditions per place. [2022-12-13 13:25:10,062 INFO L137 encePairwiseOnDemand]: 249/253 looper letters, 41 selfloop transitions, 5 changer transitions 0/47 dead transitions. [2022-12-13 13:25:10,062 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 47 transitions, 266 flow [2022-12-13 13:25:10,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 13:25:10,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 13:25:10,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 517 transitions. [2022-12-13 13:25:10,063 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.40869565217391307 [2022-12-13 13:25:10,063 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 517 transitions. [2022-12-13 13:25:10,063 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 517 transitions. [2022-12-13 13:25:10,064 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:25:10,064 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 517 transitions. [2022-12-13 13:25:10,064 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 103.4) internal successors, (517), 5 states have internal predecessors, (517), 0 states have call successors, (0), 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 13:25:10,066 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 253.0) internal successors, (1518), 6 states have internal predecessors, (1518), 0 states have call successors, (0), 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 13:25:10,066 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 253.0) internal successors, (1518), 6 states have internal predecessors, (1518), 0 states have call successors, (0), 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 13:25:10,066 INFO L175 Difference]: Start difference. First operand has 44 places, 37 transitions, 152 flow. Second operand 5 states and 517 transitions. [2022-12-13 13:25:10,066 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 47 transitions, 266 flow [2022-12-13 13:25:10,068 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 47 transitions, 262 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 13:25:10,069 INFO L231 Difference]: Finished difference. Result has 46 places, 36 transitions, 152 flow [2022-12-13 13:25:10,069 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=253, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=152, PETRI_PLACES=46, PETRI_TRANSITIONS=36} [2022-12-13 13:25:10,069 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, 3 predicate places. [2022-12-13 13:25:10,070 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 36 transitions, 152 flow [2022-12-13 13:25:10,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 98.0) internal successors, (490), 5 states have internal predecessors, (490), 0 states have call successors, (0), 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 13:25:10,070 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:25:10,070 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:25:10,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 13:25:10,070 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 13:25:10,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:25:10,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1355163816, now seen corresponding path program 1 times [2022-12-13 13:25:10,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:25:10,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816775430] [2022-12-13 13:25:10,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:25:10,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:25:10,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:25:10,670 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 13:25:10,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:25:10,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816775430] [2022-12-13 13:25:10,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816775430] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:25:10,671 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:25:10,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 13:25:10,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598679330] [2022-12-13 13:25:10,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:25:10,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 13:25:10,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:25:10,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 13:25:10,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-13 13:25:10,714 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 253 [2022-12-13 13:25:10,715 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 36 transitions, 152 flow. Second operand has 7 states, 7 states have (on average 105.71428571428571) internal successors, (740), 7 states have internal predecessors, (740), 0 states have call successors, (0), 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 13:25:10,715 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:25:10,715 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 253 [2022-12-13 13:25:10,715 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:25:11,228 INFO L130 PetriNetUnfolder]: 2039/3001 cut-off events. [2022-12-13 13:25:11,228 INFO L131 PetriNetUnfolder]: For 914/914 co-relation queries the response was YES. [2022-12-13 13:25:11,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7701 conditions, 3001 events. 2039/3001 cut-off events. For 914/914 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 13616 event pairs, 231 based on Foata normal form. 30/3030 useless extension candidates. Maximal degree in co-relation 7691. Up to 1998 conditions per place. [2022-12-13 13:25:11,236 INFO L137 encePairwiseOnDemand]: 241/253 looper letters, 48 selfloop transitions, 21 changer transitions 0/70 dead transitions. [2022-12-13 13:25:11,237 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 70 transitions, 387 flow [2022-12-13 13:25:11,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 13:25:11,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 13:25:11,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 580 transitions. [2022-12-13 13:25:11,240 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45849802371541504 [2022-12-13 13:25:11,240 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 580 transitions. [2022-12-13 13:25:11,240 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 580 transitions. [2022-12-13 13:25:11,241 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:25:11,241 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 580 transitions. [2022-12-13 13:25:11,242 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 116.0) internal successors, (580), 5 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 13:25:11,245 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 253.0) internal successors, (1518), 6 states have internal predecessors, (1518), 0 states have call successors, (0), 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 13:25:11,246 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 253.0) internal successors, (1518), 6 states have internal predecessors, (1518), 0 states have call successors, (0), 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 13:25:11,246 INFO L175 Difference]: Start difference. First operand has 46 places, 36 transitions, 152 flow. Second operand 5 states and 580 transitions. [2022-12-13 13:25:11,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 70 transitions, 387 flow [2022-12-13 13:25:11,248 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 70 transitions, 379 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 13:25:11,250 INFO L231 Difference]: Finished difference. Result has 49 places, 49 transitions, 278 flow [2022-12-13 13:25:11,250 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=253, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=278, PETRI_PLACES=49, PETRI_TRANSITIONS=49} [2022-12-13 13:25:11,251 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, 6 predicate places. [2022-12-13 13:25:11,251 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 49 transitions, 278 flow [2022-12-13 13:25:11,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 105.71428571428571) internal successors, (740), 7 states have internal predecessors, (740), 0 states have call successors, (0), 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 13:25:11,252 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:25:11,252 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:25:11,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 13:25:11,252 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 13:25:11,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:25:11,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1551350680, now seen corresponding path program 2 times [2022-12-13 13:25:11,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:25:11,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465189554] [2022-12-13 13:25:11,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:25:11,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:25:11,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:25:11,662 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 13:25:11,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:25:11,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465189554] [2022-12-13 13:25:11,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465189554] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:25:11,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:25:11,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 13:25:11,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347547547] [2022-12-13 13:25:11,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:25:11,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 13:25:11,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:25:11,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 13:25:11,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-13 13:25:11,674 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 253 [2022-12-13 13:25:11,674 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 49 transitions, 278 flow. Second operand has 7 states, 7 states have (on average 106.71428571428571) internal successors, (747), 7 states have internal predecessors, (747), 0 states have call successors, (0), 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 13:25:11,674 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:25:11,674 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 253 [2022-12-13 13:25:11,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:25:12,226 INFO L130 PetriNetUnfolder]: 2262/3372 cut-off events. [2022-12-13 13:25:12,226 INFO L131 PetriNetUnfolder]: For 3530/3530 co-relation queries the response was YES. [2022-12-13 13:25:12,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11746 conditions, 3372 events. 2262/3372 cut-off events. For 3530/3530 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 16393 event pairs, 1061 based on Foata normal form. 30/3401 useless extension candidates. Maximal degree in co-relation 11734. Up to 2651 conditions per place. [2022-12-13 13:25:12,236 INFO L137 encePairwiseOnDemand]: 241/253 looper letters, 46 selfloop transitions, 32 changer transitions 0/79 dead transitions. [2022-12-13 13:25:12,236 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 79 transitions, 585 flow [2022-12-13 13:25:12,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 13:25:12,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 13:25:12,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 574 transitions. [2022-12-13 13:25:12,238 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45375494071146244 [2022-12-13 13:25:12,238 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 574 transitions. [2022-12-13 13:25:12,239 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 574 transitions. [2022-12-13 13:25:12,239 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:25:12,239 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 574 transitions. [2022-12-13 13:25:12,240 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 114.8) internal successors, (574), 5 states have internal predecessors, (574), 0 states have call successors, (0), 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 13:25:12,240 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 253.0) internal successors, (1518), 6 states have internal predecessors, (1518), 0 states have call successors, (0), 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 13:25:12,241 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 253.0) internal successors, (1518), 6 states have internal predecessors, (1518), 0 states have call successors, (0), 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 13:25:12,241 INFO L175 Difference]: Start difference. First operand has 49 places, 49 transitions, 278 flow. Second operand 5 states and 574 transitions. [2022-12-13 13:25:12,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 79 transitions, 585 flow [2022-12-13 13:25:12,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 79 transitions, 555 flow, removed 2 selfloop flow, removed 2 redundant places. [2022-12-13 13:25:12,245 INFO L231 Difference]: Finished difference. Result has 53 places, 68 transitions, 498 flow [2022-12-13 13:25:12,246 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=253, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=498, PETRI_PLACES=53, PETRI_TRANSITIONS=68} [2022-12-13 13:25:12,246 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, 10 predicate places. [2022-12-13 13:25:12,246 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 68 transitions, 498 flow [2022-12-13 13:25:12,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 106.71428571428571) internal successors, (747), 7 states have internal predecessors, (747), 0 states have call successors, (0), 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 13:25:12,246 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:25:12,246 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:25:12,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 13:25:12,247 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 13:25:12,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:25:12,247 INFO L85 PathProgramCache]: Analyzing trace with hash 491927615, now seen corresponding path program 1 times [2022-12-13 13:25:12,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:25:12,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726233818] [2022-12-13 13:25:12,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:25:12,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:25:12,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:25:12,434 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 13:25:12,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:25:12,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726233818] [2022-12-13 13:25:12,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726233818] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:25:12,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:25:12,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 13:25:12,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718126988] [2022-12-13 13:25:12,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:25:12,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 13:25:12,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:25:12,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:25:12,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:25:12,444 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 253 [2022-12-13 13:25:12,444 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 68 transitions, 498 flow. Second operand has 4 states, 4 states have (on average 109.25) internal successors, (437), 4 states have internal predecessors, (437), 0 states have call successors, (0), 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 13:25:12,444 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:25:12,444 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 253 [2022-12-13 13:25:12,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:25:13,024 INFO L130 PetriNetUnfolder]: 1583/2507 cut-off events. [2022-12-13 13:25:13,024 INFO L131 PetriNetUnfolder]: For 7845/7845 co-relation queries the response was YES. [2022-12-13 13:25:13,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10104 conditions, 2507 events. 1583/2507 cut-off events. For 7845/7845 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 12767 event pairs, 211 based on Foata normal form. 262/2768 useless extension candidates. Maximal degree in co-relation 10090. Up to 1208 conditions per place. [2022-12-13 13:25:13,030 INFO L137 encePairwiseOnDemand]: 247/253 looper letters, 99 selfloop transitions, 4 changer transitions 64/168 dead transitions. [2022-12-13 13:25:13,030 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 168 transitions, 1550 flow [2022-12-13 13:25:13,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 13:25:13,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 13:25:13,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 602 transitions. [2022-12-13 13:25:13,032 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4758893280632411 [2022-12-13 13:25:13,032 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 602 transitions. [2022-12-13 13:25:13,032 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 602 transitions. [2022-12-13 13:25:13,032 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:25:13,032 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 602 transitions. [2022-12-13 13:25:13,033 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 120.4) internal successors, (602), 5 states have internal predecessors, (602), 0 states have call successors, (0), 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 13:25:13,034 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 253.0) internal successors, (1518), 6 states have internal predecessors, (1518), 0 states have call successors, (0), 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 13:25:13,034 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 253.0) internal successors, (1518), 6 states have internal predecessors, (1518), 0 states have call successors, (0), 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 13:25:13,034 INFO L175 Difference]: Start difference. First operand has 53 places, 68 transitions, 498 flow. Second operand 5 states and 602 transitions. [2022-12-13 13:25:13,035 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 168 transitions, 1550 flow [2022-12-13 13:25:13,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 168 transitions, 1547 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-12-13 13:25:13,040 INFO L231 Difference]: Finished difference. Result has 59 places, 71 transitions, 543 flow [2022-12-13 13:25:13,040 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=253, PETRI_DIFFERENCE_MINUEND_FLOW=495, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=543, PETRI_PLACES=59, PETRI_TRANSITIONS=71} [2022-12-13 13:25:13,041 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, 16 predicate places. [2022-12-13 13:25:13,041 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 71 transitions, 543 flow [2022-12-13 13:25:13,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 109.25) internal successors, (437), 4 states have internal predecessors, (437), 0 states have call successors, (0), 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 13:25:13,041 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:25:13,041 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:25:13,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 13:25:13,041 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 13:25:13,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:25:13,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1982256424, now seen corresponding path program 1 times [2022-12-13 13:25:13,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:25:13,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350789469] [2022-12-13 13:25:13,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:25:13,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:25:13,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:25:13,732 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 13:25:13,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:25:13,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350789469] [2022-12-13 13:25:13,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350789469] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:25:13,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:25:13,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 13:25:13,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024489163] [2022-12-13 13:25:13,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:25:13,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 13:25:13,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:25:13,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 13:25:13,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-13 13:25:13,769 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 253 [2022-12-13 13:25:13,770 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 71 transitions, 543 flow. Second operand has 8 states, 8 states have (on average 105.75) internal successors, (846), 8 states have internal predecessors, (846), 0 states have call successors, (0), 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 13:25:13,770 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:25:13,770 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 253 [2022-12-13 13:25:13,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:25:14,428 INFO L130 PetriNetUnfolder]: 1503/2482 cut-off events. [2022-12-13 13:25:14,428 INFO L131 PetriNetUnfolder]: For 7022/7022 co-relation queries the response was YES. [2022-12-13 13:25:14,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11348 conditions, 2482 events. 1503/2482 cut-off events. For 7022/7022 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 13211 event pairs, 241 based on Foata normal form. 60/2541 useless extension candidates. Maximal degree in co-relation 11331. Up to 1007 conditions per place. [2022-12-13 13:25:14,434 INFO L137 encePairwiseOnDemand]: 241/253 looper letters, 57 selfloop transitions, 21 changer transitions 97/176 dead transitions. [2022-12-13 13:25:14,435 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 176 transitions, 1660 flow [2022-12-13 13:25:14,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 13:25:14,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 13:25:14,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1031 transitions. [2022-12-13 13:25:14,437 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45278875713658323 [2022-12-13 13:25:14,437 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1031 transitions. [2022-12-13 13:25:14,437 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1031 transitions. [2022-12-13 13:25:14,437 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:25:14,437 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1031 transitions. [2022-12-13 13:25:14,439 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 114.55555555555556) internal successors, (1031), 9 states have internal predecessors, (1031), 0 states have call successors, (0), 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 13:25:14,441 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 253.0) internal successors, (2530), 10 states have internal predecessors, (2530), 0 states have call successors, (0), 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 13:25:14,441 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 253.0) internal successors, (2530), 10 states have internal predecessors, (2530), 0 states have call successors, (0), 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 13:25:14,441 INFO L175 Difference]: Start difference. First operand has 59 places, 71 transitions, 543 flow. Second operand 9 states and 1031 transitions. [2022-12-13 13:25:14,441 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 176 transitions, 1660 flow [2022-12-13 13:25:14,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 176 transitions, 1617 flow, removed 13 selfloop flow, removed 2 redundant places. [2022-12-13 13:25:14,456 INFO L231 Difference]: Finished difference. Result has 65 places, 47 transitions, 425 flow [2022-12-13 13:25:14,456 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=253, PETRI_DIFFERENCE_MINUEND_FLOW=529, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=425, PETRI_PLACES=65, PETRI_TRANSITIONS=47} [2022-12-13 13:25:14,456 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, 22 predicate places. [2022-12-13 13:25:14,457 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 47 transitions, 425 flow [2022-12-13 13:25:14,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 105.75) internal successors, (846), 8 states have internal predecessors, (846), 0 states have call successors, (0), 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 13:25:14,457 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:25:14,457 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:25:14,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 13:25:14,457 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 13:25:14,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:25:14,458 INFO L85 PathProgramCache]: Analyzing trace with hash 204823563, now seen corresponding path program 1 times [2022-12-13 13:25:14,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:25:14,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394848147] [2022-12-13 13:25:14,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:25:14,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:25:14,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:25:14,625 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 13:25:14,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:25:14,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394848147] [2022-12-13 13:25:14,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394848147] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:25:14,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:25:14,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 13:25:14,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87334006] [2022-12-13 13:25:14,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:25:14,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 13:25:14,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:25:14,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 13:25:14,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 13:25:14,635 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 253 [2022-12-13 13:25:14,635 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 47 transitions, 425 flow. Second operand has 5 states, 5 states have (on average 109.0) internal successors, (545), 5 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 13:25:14,635 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:25:14,635 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 253 [2022-12-13 13:25:14,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:25:14,866 INFO L130 PetriNetUnfolder]: 297/566 cut-off events. [2022-12-13 13:25:14,866 INFO L131 PetriNetUnfolder]: For 2695/2695 co-relation queries the response was YES. [2022-12-13 13:25:14,867 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2802 conditions, 566 events. 297/566 cut-off events. For 2695/2695 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2381 event pairs, 54 based on Foata normal form. 64/629 useless extension candidates. Maximal degree in co-relation 2784. Up to 243 conditions per place. [2022-12-13 13:25:14,868 INFO L137 encePairwiseOnDemand]: 247/253 looper letters, 61 selfloop transitions, 7 changer transitions 31/100 dead transitions. [2022-12-13 13:25:14,868 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 100 transitions, 1091 flow [2022-12-13 13:25:14,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 13:25:14,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 13:25:14,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 714 transitions. [2022-12-13 13:25:14,870 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47035573122529645 [2022-12-13 13:25:14,870 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 714 transitions. [2022-12-13 13:25:14,870 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 714 transitions. [2022-12-13 13:25:14,870 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:25:14,870 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 714 transitions. [2022-12-13 13:25:14,871 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 119.0) internal successors, (714), 6 states have internal predecessors, (714), 0 states have call successors, (0), 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 13:25:14,873 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 253.0) internal successors, (1771), 7 states have internal predecessors, (1771), 0 states have call successors, (0), 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 13:25:14,873 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 253.0) internal successors, (1771), 7 states have internal predecessors, (1771), 0 states have call successors, (0), 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 13:25:14,873 INFO L175 Difference]: Start difference. First operand has 65 places, 47 transitions, 425 flow. Second operand 6 states and 714 transitions. [2022-12-13 13:25:14,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 100 transitions, 1091 flow [2022-12-13 13:25:14,876 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 100 transitions, 957 flow, removed 16 selfloop flow, removed 16 redundant places. [2022-12-13 13:25:14,877 INFO L231 Difference]: Finished difference. Result has 56 places, 43 transitions, 348 flow [2022-12-13 13:25:14,877 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=253, PETRI_DIFFERENCE_MINUEND_FLOW=292, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=348, PETRI_PLACES=56, PETRI_TRANSITIONS=43} [2022-12-13 13:25:14,877 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, 13 predicate places. [2022-12-13 13:25:14,878 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 43 transitions, 348 flow [2022-12-13 13:25:14,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 109.0) internal successors, (545), 5 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 13:25:14,878 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:25:14,878 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:25:14,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 13:25:14,878 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 13:25:14,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:25:14,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1630633742, now seen corresponding path program 1 times [2022-12-13 13:25:14,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:25:14,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137180530] [2022-12-13 13:25:14,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:25:14,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:25:14,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:25:15,051 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 13:25:15,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:25:15,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137180530] [2022-12-13 13:25:15,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137180530] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:25:15,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:25:15,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 13:25:15,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574610960] [2022-12-13 13:25:15,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:25:15,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 13:25:15,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:25:15,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 13:25:15,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-13 13:25:15,062 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 253 [2022-12-13 13:25:15,063 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 43 transitions, 348 flow. Second operand has 6 states, 6 states have (on average 109.0) internal successors, (654), 6 states have internal predecessors, (654), 0 states have call successors, (0), 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 13:25:15,063 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:25:15,063 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 253 [2022-12-13 13:25:15,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:25:15,265 INFO L130 PetriNetUnfolder]: 185/369 cut-off events. [2022-12-13 13:25:15,265 INFO L131 PetriNetUnfolder]: For 1446/1446 co-relation queries the response was YES. [2022-12-13 13:25:15,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1852 conditions, 369 events. 185/369 cut-off events. For 1446/1446 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1407 event pairs, 51 based on Foata normal form. 13/381 useless extension candidates. Maximal degree in co-relation 1836. Up to 172 conditions per place. [2022-12-13 13:25:15,267 INFO L137 encePairwiseOnDemand]: 247/253 looper letters, 58 selfloop transitions, 10 changer transitions 12/81 dead transitions. [2022-12-13 13:25:15,267 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 81 transitions, 820 flow [2022-12-13 13:25:15,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 13:25:15,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 13:25:15,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 806 transitions. [2022-12-13 13:25:15,271 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45511010728402035 [2022-12-13 13:25:15,271 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 806 transitions. [2022-12-13 13:25:15,271 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 806 transitions. [2022-12-13 13:25:15,272 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:25:15,272 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 806 transitions. [2022-12-13 13:25:15,274 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 115.14285714285714) internal successors, (806), 7 states have internal predecessors, (806), 0 states have call successors, (0), 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 13:25:15,278 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 253.0) internal successors, (2024), 8 states have internal predecessors, (2024), 0 states have call successors, (0), 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 13:25:15,278 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 253.0) internal successors, (2024), 8 states have internal predecessors, (2024), 0 states have call successors, (0), 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 13:25:15,278 INFO L175 Difference]: Start difference. First operand has 56 places, 43 transitions, 348 flow. Second operand 7 states and 806 transitions. [2022-12-13 13:25:15,279 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 81 transitions, 820 flow [2022-12-13 13:25:15,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 81 transitions, 754 flow, removed 19 selfloop flow, removed 6 redundant places. [2022-12-13 13:25:15,285 INFO L231 Difference]: Finished difference. Result has 57 places, 43 transitions, 329 flow [2022-12-13 13:25:15,285 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=253, PETRI_DIFFERENCE_MINUEND_FLOW=297, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=329, PETRI_PLACES=57, PETRI_TRANSITIONS=43} [2022-12-13 13:25:15,286 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, 14 predicate places. [2022-12-13 13:25:15,286 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 43 transitions, 329 flow [2022-12-13 13:25:15,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 109.0) internal successors, (654), 6 states have internal predecessors, (654), 0 states have call successors, (0), 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 13:25:15,286 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:25:15,286 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 13:25:15,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 13:25:15,287 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 13:25:15,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:25:15,287 INFO L85 PathProgramCache]: Analyzing trace with hash -610985256, now seen corresponding path program 1 times [2022-12-13 13:25:15,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:25:15,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980621679] [2022-12-13 13:25:15,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:25:15,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:25:15,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:25:15,461 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 13:25:15,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:25:15,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980621679] [2022-12-13 13:25:15,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980621679] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:25:15,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:25:15,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 13:25:15,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466545759] [2022-12-13 13:25:15,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:25:15,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 13:25:15,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:25:15,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:25:15,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:25:15,467 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 253 [2022-12-13 13:25:15,468 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 43 transitions, 329 flow. Second operand has 4 states, 4 states have (on average 113.0) internal successors, (452), 4 states have internal predecessors, (452), 0 states have call successors, (0), 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 13:25:15,468 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:25:15,468 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 253 [2022-12-13 13:25:15,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:25:15,646 INFO L130 PetriNetUnfolder]: 256/483 cut-off events. [2022-12-13 13:25:15,646 INFO L131 PetriNetUnfolder]: For 1739/1739 co-relation queries the response was YES. [2022-12-13 13:25:15,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2411 conditions, 483 events. 256/483 cut-off events. For 1739/1739 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1972 event pairs, 28 based on Foata normal form. 1/484 useless extension candidates. Maximal degree in co-relation 2396. Up to 313 conditions per place. [2022-12-13 13:25:15,648 INFO L137 encePairwiseOnDemand]: 250/253 looper letters, 37 selfloop transitions, 1 changer transitions 37/75 dead transitions. [2022-12-13 13:25:15,648 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 75 transitions, 736 flow [2022-12-13 13:25:15,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 13:25:15,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 13:25:15,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 475 transitions. [2022-12-13 13:25:15,653 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46936758893280633 [2022-12-13 13:25:15,653 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 475 transitions. [2022-12-13 13:25:15,653 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 475 transitions. [2022-12-13 13:25:15,653 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:25:15,653 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 475 transitions. [2022-12-13 13:25:15,654 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 118.75) internal successors, (475), 4 states have internal predecessors, (475), 0 states have call successors, (0), 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 13:25:15,655 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 253.0) internal successors, (1265), 5 states have internal predecessors, (1265), 0 states have call successors, (0), 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 13:25:15,655 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 253.0) internal successors, (1265), 5 states have internal predecessors, (1265), 0 states have call successors, (0), 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 13:25:15,655 INFO L175 Difference]: Start difference. First operand has 57 places, 43 transitions, 329 flow. Second operand 4 states and 475 transitions. [2022-12-13 13:25:15,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 75 transitions, 736 flow [2022-12-13 13:25:15,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 75 transitions, 644 flow, removed 30 selfloop flow, removed 6 redundant places. [2022-12-13 13:25:15,659 INFO L231 Difference]: Finished difference. Result has 54 places, 32 transitions, 192 flow [2022-12-13 13:25:15,659 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=253, PETRI_DIFFERENCE_MINUEND_FLOW=285, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=192, PETRI_PLACES=54, PETRI_TRANSITIONS=32} [2022-12-13 13:25:15,660 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, 11 predicate places. [2022-12-13 13:25:15,660 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 32 transitions, 192 flow [2022-12-13 13:25:15,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 113.0) internal successors, (452), 4 states have internal predecessors, (452), 0 states have call successors, (0), 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 13:25:15,660 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:25:15,660 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 13:25:15,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 13:25:15,660 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 13:25:15,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:25:15,661 INFO L85 PathProgramCache]: Analyzing trace with hash 2122161776, now seen corresponding path program 2 times [2022-12-13 13:25:15,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:25:15,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837459774] [2022-12-13 13:25:15,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:25:15,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:25:15,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:25:18,404 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 13:25:18,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:25:18,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837459774] [2022-12-13 13:25:18,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837459774] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:25:18,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:25:18,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 13:25:18,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123439871] [2022-12-13 13:25:18,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:25:18,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 13:25:18,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:25:18,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 13:25:18,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2022-12-13 13:25:18,523 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 253 [2022-12-13 13:25:18,524 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 32 transitions, 192 flow. Second operand has 12 states, 12 states have (on average 102.91666666666667) internal successors, (1235), 12 states have internal predecessors, (1235), 0 states have call successors, (0), 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 13:25:18,524 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:25:18,524 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 253 [2022-12-13 13:25:18,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:25:18,960 INFO L130 PetriNetUnfolder]: 210/428 cut-off events. [2022-12-13 13:25:18,960 INFO L131 PetriNetUnfolder]: For 1208/1208 co-relation queries the response was YES. [2022-12-13 13:25:18,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2085 conditions, 428 events. 210/428 cut-off events. For 1208/1208 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1750 event pairs, 69 based on Foata normal form. 1/429 useless extension candidates. Maximal degree in co-relation 2071. Up to 198 conditions per place. [2022-12-13 13:25:18,962 INFO L137 encePairwiseOnDemand]: 243/253 looper letters, 0 selfloop transitions, 0 changer transitions 76/76 dead transitions. [2022-12-13 13:25:18,962 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 76 transitions, 647 flow [2022-12-13 13:25:18,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 13:25:18,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 13:25:18,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 762 transitions. [2022-12-13 13:25:18,964 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4302653867871259 [2022-12-13 13:25:18,964 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 762 transitions. [2022-12-13 13:25:18,964 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 762 transitions. [2022-12-13 13:25:18,965 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:25:18,965 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 762 transitions. [2022-12-13 13:25:18,967 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 108.85714285714286) internal successors, (762), 7 states have internal predecessors, (762), 0 states have call successors, (0), 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 13:25:18,970 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 253.0) internal successors, (2024), 8 states have internal predecessors, (2024), 0 states have call successors, (0), 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 13:25:18,971 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 253.0) internal successors, (2024), 8 states have internal predecessors, (2024), 0 states have call successors, (0), 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 13:25:18,971 INFO L175 Difference]: Start difference. First operand has 54 places, 32 transitions, 192 flow. Second operand 7 states and 762 transitions. [2022-12-13 13:25:18,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 76 transitions, 647 flow [2022-12-13 13:25:18,974 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 76 transitions, 561 flow, removed 30 selfloop flow, removed 5 redundant places. [2022-12-13 13:25:18,975 INFO L231 Difference]: Finished difference. Result has 52 places, 0 transitions, 0 flow [2022-12-13 13:25:18,975 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=253, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=46, 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=7, PETRI_FLOW=0, PETRI_PLACES=52, PETRI_TRANSITIONS=0} [2022-12-13 13:25:18,976 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, 9 predicate places. [2022-12-13 13:25:18,976 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 0 transitions, 0 flow [2022-12-13 13:25:18,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 102.91666666666667) internal successors, (1235), 12 states have internal predecessors, (1235), 0 states have call successors, (0), 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 13:25:18,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONMEMORY_LEAK (12 of 13 remaining) [2022-12-13 13:25:18,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 13 remaining) [2022-12-13 13:25:18,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 13 remaining) [2022-12-13 13:25:18,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 13 remaining) [2022-12-13 13:25:18,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 13 remaining) [2022-12-13 13:25:18,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 13 remaining) [2022-12-13 13:25:18,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 13 remaining) [2022-12-13 13:25:18,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (5 of 13 remaining) [2022-12-13 13:25:18,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (4 of 13 remaining) [2022-12-13 13:25:18,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 13 remaining) [2022-12-13 13:25:18,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 13 remaining) [2022-12-13 13:25:18,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 13 remaining) [2022-12-13 13:25:18,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 13 remaining) [2022-12-13 13:25:18,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 13:25:18,981 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:25:18,986 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 13:25:18,986 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 13:25:18,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 01:25:18 BasicIcfg [2022-12-13 13:25:18,989 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 13:25:18,989 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 13:25:18,989 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 13:25:18,990 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 13:25:18,990 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:24:58" (3/4) ... [2022-12-13 13:25:18,992 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 13:25:18,997 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-12-13 13:25:18,997 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-12-13 13:25:18,997 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-12-13 13:25:19,002 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 32 nodes and edges [2022-12-13 13:25:19,003 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-12-13 13:25:19,003 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 13:25:19,003 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 13:25:19,037 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9045d287-3303-4ba7-9bb5-755a32f1d12b/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 13:25:19,037 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 13:25:19,038 INFO L158 Benchmark]: Toolchain (without parser) took 21404.00ms. Allocated memory was 199.2MB in the beginning and 346.0MB in the end (delta: 146.8MB). Free memory was 146.0MB in the beginning and 100.5MB in the end (delta: 45.5MB). Peak memory consumption was 194.4MB. Max. memory is 16.1GB. [2022-12-13 13:25:19,038 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 102.8MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:25:19,038 INFO L158 Benchmark]: CACSL2BoogieTranslator took 397.90ms. Allocated memory is still 199.2MB. Free memory was 146.0MB in the beginning and 114.9MB in the end (delta: 31.1MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2022-12-13 13:25:19,038 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.29ms. Allocated memory is still 199.2MB. Free memory was 114.9MB in the beginning and 111.4MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:25:19,039 INFO L158 Benchmark]: Boogie Preprocessor took 26.12ms. Allocated memory is still 199.2MB. Free memory was 111.4MB in the beginning and 108.6MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 13:25:19,039 INFO L158 Benchmark]: RCFGBuilder took 669.12ms. Allocated memory is still 199.2MB. Free memory was 108.6MB in the beginning and 138.4MB in the end (delta: -29.9MB). Peak memory consumption was 38.0MB. Max. memory is 16.1GB. [2022-12-13 13:25:19,040 INFO L158 Benchmark]: TraceAbstraction took 20219.04ms. Allocated memory was 199.2MB in the beginning and 346.0MB in the end (delta: 146.8MB). Free memory was 137.4MB in the beginning and 103.6MB in the end (delta: 33.8MB). Peak memory consumption was 181.6MB. Max. memory is 16.1GB. [2022-12-13 13:25:19,040 INFO L158 Benchmark]: Witness Printer took 47.99ms. Allocated memory is still 346.0MB. Free memory was 103.6MB in the beginning and 100.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:25:19,042 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 102.8MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 397.90ms. Allocated memory is still 199.2MB. Free memory was 146.0MB in the beginning and 114.9MB in the end (delta: 31.1MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.29ms. Allocated memory is still 199.2MB. Free memory was 114.9MB in the beginning and 111.4MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.12ms. Allocated memory is still 199.2MB. Free memory was 111.4MB in the beginning and 108.6MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 669.12ms. Allocated memory is still 199.2MB. Free memory was 108.6MB in the beginning and 138.4MB in the end (delta: -29.9MB). Peak memory consumption was 38.0MB. Max. memory is 16.1GB. * TraceAbstraction took 20219.04ms. Allocated memory was 199.2MB in the beginning and 346.0MB in the end (delta: 146.8MB). Free memory was 137.4MB in the beginning and 103.6MB in the end (delta: 33.8MB). Peak memory consumption was 181.6MB. Max. memory is 16.1GB. * Witness Printer took 47.99ms. Allocated memory is still 346.0MB. Free memory was 103.6MB in the beginning and 100.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.3s, 134 PlacesBefore, 43 PlacesAfterwards, 126 TransitionsBefore, 33 TransitionsAfterwards, 2648 CoEnabledTransitionPairs, 7 FixpointIterations, 53 TrivialSequentialCompositions, 60 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 124 TotalNumberOfCompositions, 8100 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3147, independent: 2917, independent conditional: 0, independent unconditional: 2917, dependent: 230, dependent conditional: 0, dependent unconditional: 230, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1416, independent: 1371, independent conditional: 0, independent unconditional: 1371, dependent: 45, dependent conditional: 0, dependent unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3147, independent: 1546, independent conditional: 0, independent unconditional: 1546, dependent: 185, dependent conditional: 0, dependent unconditional: 185, unknown: 1416, unknown conditional: 0, unknown unconditional: 1416] , Statistics on independence cache: Total cache size (in pairs): 96, Positive cache size: 75, Positive conditional cache size: 0, Positive unconditional cache size: 75, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 866]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 159 locations, 13 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: 20.1s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 7.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 842 SdHoareTripleChecker+Valid, 2.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 675 mSDsluCounter, 356 SdHoareTripleChecker+Invalid, 2.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 275 mSDsCounter, 268 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2473 IncrementalHoareTripleChecker+Invalid, 2741 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 268 mSolverCounterUnsat, 81 mSDtfsCounter, 2473 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=543occurred in iteration=9, InterpolantAutomatonStates: 72, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 6.5s InterpolantComputationTime, 179 NumberOfCodeBlocks, 179 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 165 ConstructedInterpolants, 0 QuantifiedInterpolants, 2178 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 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 - AllSpecificationsHoldResult: All specifications hold 9 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 13:25:19,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9045d287-3303-4ba7-9bb5-755a32f1d12b/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 Writing output log to file Ultimate.log Result: TRUE