./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/safe017_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db35cca1-2c35-4271-84c6-b029f2fb45aa/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db35cca1-2c35-4271-84c6-b029f2fb45aa/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_db35cca1-2c35-4271-84c6-b029f2fb45aa/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db35cca1-2c35-4271-84c6-b029f2fb45aa/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/safe017_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db35cca1-2c35-4271-84c6-b029f2fb45aa/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_db35cca1-2c35-4271-84c6-b029f2fb45aa/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 f42e8f5213d7b87505465b65029831bd75698bf771428502e6718d43723a660f --- 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 22:21:16,279 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 22:21:16,281 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 22:21:16,299 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 22:21:16,300 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 22:21:16,300 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 22:21:16,302 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 22:21:16,303 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 22:21:16,305 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 22:21:16,305 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 22:21:16,306 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 22:21:16,307 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 22:21:16,308 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 22:21:16,309 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 22:21:16,310 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 22:21:16,311 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 22:21:16,311 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 22:21:16,312 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 22:21:16,314 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 22:21:16,315 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 22:21:16,317 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 22:21:16,318 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 22:21:16,319 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 22:21:16,320 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 22:21:16,323 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 22:21:16,323 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 22:21:16,323 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 22:21:16,324 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 22:21:16,324 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 22:21:16,325 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 22:21:16,326 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 22:21:16,326 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 22:21:16,327 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 22:21:16,328 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 22:21:16,328 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 22:21:16,329 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 22:21:16,329 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 22:21:16,329 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 22:21:16,330 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 22:21:16,330 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 22:21:16,331 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 22:21:16,332 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db35cca1-2c35-4271-84c6-b029f2fb45aa/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-12-13 22:21:16,351 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 22:21:16,351 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 22:21:16,351 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 22:21:16,351 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 22:21:16,352 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 22:21:16,352 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 22:21:16,353 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 22:21:16,353 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 22:21:16,353 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 22:21:16,354 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 22:21:16,354 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 22:21:16,368 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 22:21:16,368 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 22:21:16,368 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 22:21:16,368 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 22:21:16,369 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 22:21:16,369 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 22:21:16,369 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 22:21:16,369 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 22:21:16,369 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 22:21:16,369 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 22:21:16,370 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 22:21:16,370 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 22:21:16,370 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 22:21:16,370 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 22:21:16,370 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 22:21:16,371 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 22:21:16,371 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 22:21:16,371 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 22:21:16,371 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 22:21:16,371 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 22:21:16,372 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 22:21:16,372 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 22:21:16,372 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 22:21:16,372 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_db35cca1-2c35-4271-84c6-b029f2fb45aa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db35cca1-2c35-4271-84c6-b029f2fb45aa/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f42e8f5213d7b87505465b65029831bd75698bf771428502e6718d43723a660f [2022-12-13 22:21:16,544 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 22:21:16,562 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 22:21:16,564 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 22:21:16,565 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 22:21:16,565 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 22:21:16,566 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db35cca1-2c35-4271-84c6-b029f2fb45aa/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-wmm/safe017_tso.i [2022-12-13 22:21:19,233 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 22:21:19,414 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 22:21:19,414 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db35cca1-2c35-4271-84c6-b029f2fb45aa/sv-benchmarks/c/pthread-wmm/safe017_tso.i [2022-12-13 22:21:19,426 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db35cca1-2c35-4271-84c6-b029f2fb45aa/bin/uautomizer-uyxdKDjOR8/data/75e042638/0971949be77a43dc8ccedae0535bfb17/FLAG284d70fe7 [2022-12-13 22:21:19,440 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db35cca1-2c35-4271-84c6-b029f2fb45aa/bin/uautomizer-uyxdKDjOR8/data/75e042638/0971949be77a43dc8ccedae0535bfb17 [2022-12-13 22:21:19,442 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 22:21:19,443 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 22:21:19,445 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 22:21:19,445 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 22:21:19,448 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 22:21:19,449 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:21:19" (1/1) ... [2022-12-13 22:21:19,451 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2df1059 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:21:19, skipping insertion in model container [2022-12-13 22:21:19,451 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:21:19" (1/1) ... [2022-12-13 22:21:19,458 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 22:21:19,494 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 22:21:19,604 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_db35cca1-2c35-4271-84c6-b029f2fb45aa/sv-benchmarks/c/pthread-wmm/safe017_tso.i[945,958] [2022-12-13 22:21:19,701 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:21:19,701 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:21:19,701 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:21:19,702 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:21:19,702 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:21:19,702 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:21:19,702 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:21:19,703 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:21:19,703 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:21:19,703 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:21:19,704 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:21:19,704 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:21:19,704 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:21:19,704 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:21:19,705 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:21:19,705 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:21:19,705 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:21:19,705 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:21:19,706 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:21:19,706 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:21:19,706 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:21:19,706 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:21:19,710 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:21:19,711 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:21:19,711 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:21:19,711 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:21:19,711 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:21:19,712 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:21:19,713 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:21:19,721 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 22:21:19,730 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_db35cca1-2c35-4271-84c6-b029f2fb45aa/sv-benchmarks/c/pthread-wmm/safe017_tso.i[945,958] [2022-12-13 22:21:19,747 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:21:19,747 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:21:19,747 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:21:19,748 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:21:19,748 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:21:19,748 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:21:19,748 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:21:19,748 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:21:19,749 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:21:19,749 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:21:19,749 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:21:19,749 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:21:19,750 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:21:19,750 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:21:19,750 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:21:19,751 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:21:19,751 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:21:19,751 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:21:19,751 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:21:19,751 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:21:19,751 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:21:19,752 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:21:19,754 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:21:19,755 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:21:19,755 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:21:19,755 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:21:19,755 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:21:19,756 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:21:19,756 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:21:19,777 INFO L208 MainTranslator]: Completed translation [2022-12-13 22:21:19,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:21:19 WrapperNode [2022-12-13 22:21:19,777 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 22:21:19,778 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 22:21:19,778 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 22:21:19,778 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 22:21:19,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:21:19" (1/1) ... [2022-12-13 22:21:19,793 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:21:19" (1/1) ... [2022-12-13 22:21:19,807 INFO L138 Inliner]: procedures = 176, calls = 51, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 69 [2022-12-13 22:21:19,807 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 22:21:19,808 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 22:21:19,808 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 22:21:19,808 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 22:21:19,814 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:21:19" (1/1) ... [2022-12-13 22:21:19,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:21:19" (1/1) ... [2022-12-13 22:21:19,816 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:21:19" (1/1) ... [2022-12-13 22:21:19,816 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:21:19" (1/1) ... [2022-12-13 22:21:19,819 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:21:19" (1/1) ... [2022-12-13 22:21:19,821 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:21:19" (1/1) ... [2022-12-13 22:21:19,822 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:21:19" (1/1) ... [2022-12-13 22:21:19,822 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:21:19" (1/1) ... [2022-12-13 22:21:19,824 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 22:21:19,825 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 22:21:19,825 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 22:21:19,825 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 22:21:19,825 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:21:19" (1/1) ... [2022-12-13 22:21:19,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 22:21:19,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db35cca1-2c35-4271-84c6-b029f2fb45aa/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:21:19,849 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db35cca1-2c35-4271-84c6-b029f2fb45aa/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 22:21:19,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db35cca1-2c35-4271-84c6-b029f2fb45aa/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 22:21:19,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 22:21:19,885 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 22:21:19,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 22:21:19,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 22:21:19,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 22:21:19,886 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 22:21:19,886 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 22:21:19,886 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 22:21:19,886 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 22:21:19,886 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-13 22:21:19,886 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-13 22:21:19,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 22:21:19,886 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 22:21:19,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 22:21:19,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 22:21:19,887 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 22:21:19,995 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 22:21:19,996 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 22:21:20,131 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 22:21:20,138 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 22:21:20,138 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 22:21:20,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:21:20 BoogieIcfgContainer [2022-12-13 22:21:20,141 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 22:21:20,143 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 22:21:20,144 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 22:21:20,147 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 22:21:20,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 10:21:19" (1/3) ... [2022-12-13 22:21:20,148 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e973795 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 10:21:20, skipping insertion in model container [2022-12-13 22:21:20,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:21:19" (2/3) ... [2022-12-13 22:21:20,148 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e973795 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 10:21:20, skipping insertion in model container [2022-12-13 22:21:20,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:21:20" (3/3) ... [2022-12-13 22:21:20,150 INFO L112 eAbstractionObserver]: Analyzing ICFG safe017_tso.i [2022-12-13 22:21:20,168 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 22:21:20,168 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-12-13 22:21:20,168 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 22:21:20,210 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 22:21:20,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 107 places, 99 transitions, 213 flow [2022-12-13 22:21:20,271 INFO L130 PetriNetUnfolder]: 2/96 cut-off events. [2022-12-13 22:21:20,271 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 22:21:20,276 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 96 events. 2/96 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 66 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2022-12-13 22:21:20,276 INFO L82 GeneralOperation]: Start removeDead. Operand has 107 places, 99 transitions, 213 flow [2022-12-13 22:21:20,280 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 99 places, 91 transitions, 191 flow [2022-12-13 22:21:20,284 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 22:21:20,292 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 99 places, 91 transitions, 191 flow [2022-12-13 22:21:20,294 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 99 places, 91 transitions, 191 flow [2022-12-13 22:21:20,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 99 places, 91 transitions, 191 flow [2022-12-13 22:21:20,317 INFO L130 PetriNetUnfolder]: 2/91 cut-off events. [2022-12-13 22:21:20,317 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 22:21:20,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 91 events. 2/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 64 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 69. Up to 2 conditions per place. [2022-12-13 22:21:20,319 INFO L119 LiptonReduction]: Number of co-enabled transitions 1518 [2022-12-13 22:21:22,393 INFO L134 LiptonReduction]: Checked pairs total: 2921 [2022-12-13 22:21:22,393 INFO L136 LiptonReduction]: Total number of compositions: 99 [2022-12-13 22:21:22,405 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 22:21:22,409 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;@62cc744, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 22:21:22,409 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-12-13 22:21:22,410 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 22:21:22,410 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 22:21:22,411 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:21:22,411 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 22:21:22,411 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-12-13 22:21:22,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:21:22,415 INFO L85 PathProgramCache]: Analyzing trace with hash 351, now seen corresponding path program 1 times [2022-12-13 22:21:22,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:21:22,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916799109] [2022-12-13 22:21:22,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:21:22,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:21:22,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:21:22,513 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 22:21:22,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:21:22,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916799109] [2022-12-13 22:21:22,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916799109] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:21:22,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:21:22,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 22:21:22,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838753680] [2022-12-13 22:21:22,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:21:22,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 22:21:22,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:21:22,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 22:21:22,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 22:21:22,538 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 198 [2022-12-13 22:21:22,540 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 24 transitions, 57 flow. Second operand has 2 states, 2 states have (on average 93.5) internal successors, (187), 2 states have internal predecessors, (187), 0 states have call successors, (0), 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 22:21:22,540 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:21:22,540 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 198 [2022-12-13 22:21:22,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:21:22,608 INFO L130 PetriNetUnfolder]: 218/362 cut-off events. [2022-12-13 22:21:22,608 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-12-13 22:21:22,609 INFO L83 FinitePrefix]: Finished finitePrefix Result has 744 conditions, 362 events. 218/362 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1439 event pairs, 218 based on Foata normal form. 0/325 useless extension candidates. Maximal degree in co-relation 733. Up to 352 conditions per place. [2022-12-13 22:21:22,611 INFO L137 encePairwiseOnDemand]: 191/198 looper letters, 15 selfloop transitions, 0 changer transitions 0/17 dead transitions. [2022-12-13 22:21:22,611 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 17 transitions, 73 flow [2022-12-13 22:21:22,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 22:21:22,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 22:21:22,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 208 transitions. [2022-12-13 22:21:22,620 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5252525252525253 [2022-12-13 22:21:22,621 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 208 transitions. [2022-12-13 22:21:22,621 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 208 transitions. [2022-12-13 22:21:22,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:21:22,623 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 208 transitions. [2022-12-13 22:21:22,625 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 104.0) internal successors, (208), 2 states have internal predecessors, (208), 0 states have call successors, (0), 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 22:21:22,628 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 198.0) internal successors, (594), 3 states have internal predecessors, (594), 0 states have call successors, (0), 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 22:21:22,628 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 198.0) internal successors, (594), 3 states have internal predecessors, (594), 0 states have call successors, (0), 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 22:21:22,630 INFO L175 Difference]: Start difference. First operand has 33 places, 24 transitions, 57 flow. Second operand 2 states and 208 transitions. [2022-12-13 22:21:22,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 17 transitions, 73 flow [2022-12-13 22:21:22,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 17 transitions, 70 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 22:21:22,633 INFO L231 Difference]: Finished difference. Result has 25 places, 17 transitions, 40 flow [2022-12-13 22:21:22,634 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=40, PETRI_PLACES=25, PETRI_TRANSITIONS=17} [2022-12-13 22:21:22,636 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, -8 predicate places. [2022-12-13 22:21:22,637 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 17 transitions, 40 flow [2022-12-13 22:21:22,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 93.5) internal successors, (187), 2 states have internal predecessors, (187), 0 states have call successors, (0), 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 22:21:22,637 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:21:22,637 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:21:22,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 22:21:22,637 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-12-13 22:21:22,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:21:22,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1646082574, now seen corresponding path program 1 times [2022-12-13 22:21:22,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:21:22,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993038205] [2022-12-13 22:21:22,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:21:22,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:21:22,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:21:22,862 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 22:21:22,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:21:22,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993038205] [2022-12-13 22:21:22,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993038205] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:21:22,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:21:22,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 22:21:22,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071402095] [2022-12-13 22:21:22,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:21:22,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 22:21:22,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:21:22,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 22:21:22,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:21:22,880 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 198 [2022-12-13 22:21:22,880 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 17 transitions, 40 flow. Second operand has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 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 22:21:22,881 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:21:22,881 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 198 [2022-12-13 22:21:22,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:21:22,986 INFO L130 PetriNetUnfolder]: 584/939 cut-off events. [2022-12-13 22:21:22,987 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 22:21:22,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1923 conditions, 939 events. 584/939 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 4227 event pairs, 222 based on Foata normal form. 0/900 useless extension candidates. Maximal degree in co-relation 1920. Up to 481 conditions per place. [2022-12-13 22:21:22,992 INFO L137 encePairwiseOnDemand]: 190/198 looper letters, 24 selfloop transitions, 7 changer transitions 0/31 dead transitions. [2022-12-13 22:21:22,992 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 31 transitions, 134 flow [2022-12-13 22:21:22,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 22:21:22,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 22:21:22,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 287 transitions. [2022-12-13 22:21:22,994 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4831649831649832 [2022-12-13 22:21:22,995 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 287 transitions. [2022-12-13 22:21:22,995 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 287 transitions. [2022-12-13 22:21:22,995 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:21:22,995 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 287 transitions. [2022-12-13 22:21:22,997 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 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 22:21:22,999 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 0 states have call successors, (0), 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 22:21:22,999 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 0 states have call successors, (0), 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 22:21:22,999 INFO L175 Difference]: Start difference. First operand has 25 places, 17 transitions, 40 flow. Second operand 3 states and 287 transitions. [2022-12-13 22:21:22,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 31 transitions, 134 flow [2022-12-13 22:21:23,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 31 transitions, 134 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 22:21:23,001 INFO L231 Difference]: Finished difference. Result has 29 places, 23 transitions, 94 flow [2022-12-13 22:21:23,001 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=29, PETRI_TRANSITIONS=23} [2022-12-13 22:21:23,001 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, -4 predicate places. [2022-12-13 22:21:23,002 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 23 transitions, 94 flow [2022-12-13 22:21:23,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 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 22:21:23,002 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:21:23,002 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:21:23,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 22:21:23,002 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-12-13 22:21:23,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:21:23,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1646082567, now seen corresponding path program 1 times [2022-12-13 22:21:23,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:21:23,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738578201] [2022-12-13 22:21:23,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:21:23,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:21:23,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:21:23,223 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 22:21:23,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:21:23,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738578201] [2022-12-13 22:21:23,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738578201] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:21:23,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:21:23,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 22:21:23,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958113545] [2022-12-13 22:21:23,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:21:23,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 22:21:23,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:21:23,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 22:21:23,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 22:21:23,303 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 198 [2022-12-13 22:21:23,304 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 23 transitions, 94 flow. Second operand has 5 states, 5 states have (on average 79.6) internal successors, (398), 5 states have internal predecessors, (398), 0 states have call successors, (0), 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 22:21:23,304 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:21:23,304 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 198 [2022-12-13 22:21:23,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:21:23,406 INFO L130 PetriNetUnfolder]: 326/580 cut-off events. [2022-12-13 22:21:23,406 INFO L131 PetriNetUnfolder]: For 354/357 co-relation queries the response was YES. [2022-12-13 22:21:23,407 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1554 conditions, 580 events. 326/580 cut-off events. For 354/357 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 2639 event pairs, 104 based on Foata normal form. 77/648 useless extension candidates. Maximal degree in co-relation 1549. Up to 480 conditions per place. [2022-12-13 22:21:23,409 INFO L137 encePairwiseOnDemand]: 194/198 looper letters, 22 selfloop transitions, 3 changer transitions 0/29 dead transitions. [2022-12-13 22:21:23,409 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 29 transitions, 166 flow [2022-12-13 22:21:23,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 22:21:23,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 22:21:23,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 411 transitions. [2022-12-13 22:21:23,412 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.41515151515151516 [2022-12-13 22:21:23,412 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 411 transitions. [2022-12-13 22:21:23,412 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 411 transitions. [2022-12-13 22:21:23,412 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:21:23,412 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 411 transitions. [2022-12-13 22:21:23,414 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 82.2) internal successors, (411), 5 states have internal predecessors, (411), 0 states have call successors, (0), 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 22:21:23,416 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 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 22:21:23,417 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 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 22:21:23,417 INFO L175 Difference]: Start difference. First operand has 29 places, 23 transitions, 94 flow. Second operand 5 states and 411 transitions. [2022-12-13 22:21:23,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 29 transitions, 166 flow [2022-12-13 22:21:23,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 29 transitions, 148 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 22:21:23,420 INFO L231 Difference]: Finished difference. Result has 30 places, 21 transitions, 78 flow [2022-12-13 22:21:23,420 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=78, PETRI_PLACES=30, PETRI_TRANSITIONS=21} [2022-12-13 22:21:23,420 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, -3 predicate places. [2022-12-13 22:21:23,421 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 21 transitions, 78 flow [2022-12-13 22:21:23,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 79.6) internal successors, (398), 5 states have internal predecessors, (398), 0 states have call successors, (0), 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 22:21:23,421 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:21:23,421 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:21:23,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 22:21:23,422 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-12-13 22:21:23,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:21:23,422 INFO L85 PathProgramCache]: Analyzing trace with hash 531195603, now seen corresponding path program 1 times [2022-12-13 22:21:23,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:21:23,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318089975] [2022-12-13 22:21:23,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:21:23,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:21:23,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:21:23,509 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 22:21:23,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:21:23,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318089975] [2022-12-13 22:21:23,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318089975] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:21:23,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:21:23,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 22:21:23,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873213438] [2022-12-13 22:21:23,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:21:23,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 22:21:23,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:21:23,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 22:21:23,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 22:21:23,521 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 198 [2022-12-13 22:21:23,522 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 21 transitions, 78 flow. Second operand has 4 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 0 states have call successors, (0), 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 22:21:23,522 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:21:23,522 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 198 [2022-12-13 22:21:23,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:21:23,605 INFO L130 PetriNetUnfolder]: 380/633 cut-off events. [2022-12-13 22:21:23,606 INFO L131 PetriNetUnfolder]: For 131/131 co-relation queries the response was YES. [2022-12-13 22:21:23,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1627 conditions, 633 events. 380/633 cut-off events. For 131/131 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 2568 event pairs, 85 based on Foata normal form. 9/642 useless extension candidates. Maximal degree in co-relation 1622. Up to 264 conditions per place. [2022-12-13 22:21:23,608 INFO L137 encePairwiseOnDemand]: 191/198 looper letters, 26 selfloop transitions, 7 changer transitions 0/33 dead transitions. [2022-12-13 22:21:23,608 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 33 transitions, 178 flow [2022-12-13 22:21:23,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 22:21:23,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 22:21:23,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 371 transitions. [2022-12-13 22:21:23,611 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4684343434343434 [2022-12-13 22:21:23,611 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 371 transitions. [2022-12-13 22:21:23,611 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 371 transitions. [2022-12-13 22:21:23,611 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:21:23,611 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 371 transitions. [2022-12-13 22:21:23,612 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 92.75) internal successors, (371), 4 states have internal predecessors, (371), 0 states have call successors, (0), 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 22:21:23,613 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 198.0) internal successors, (990), 5 states have internal predecessors, (990), 0 states have call successors, (0), 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 22:21:23,614 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 198.0) internal successors, (990), 5 states have internal predecessors, (990), 0 states have call successors, (0), 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 22:21:23,614 INFO L175 Difference]: Start difference. First operand has 30 places, 21 transitions, 78 flow. Second operand 4 states and 371 transitions. [2022-12-13 22:21:23,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 33 transitions, 178 flow [2022-12-13 22:21:23,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 33 transitions, 173 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 22:21:23,616 INFO L231 Difference]: Finished difference. Result has 33 places, 24 transitions, 121 flow [2022-12-13 22:21:23,616 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=73, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=121, PETRI_PLACES=33, PETRI_TRANSITIONS=24} [2022-12-13 22:21:23,616 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 0 predicate places. [2022-12-13 22:21:23,616 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 24 transitions, 121 flow [2022-12-13 22:21:23,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 0 states have call successors, (0), 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 22:21:23,617 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:21:23,617 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:21:23,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 22:21:23,617 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-12-13 22:21:23,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:21:23,618 INFO L85 PathProgramCache]: Analyzing trace with hash 511046586, now seen corresponding path program 1 times [2022-12-13 22:21:23,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:21:23,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395303592] [2022-12-13 22:21:23,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:21:23,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:21:23,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:21:23,694 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 22:21:23,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:21:23,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395303592] [2022-12-13 22:21:23,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395303592] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:21:23,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:21:23,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 22:21:23,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826684938] [2022-12-13 22:21:23,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:21:23,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 22:21:23,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:21:23,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 22:21:23,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 22:21:23,708 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 198 [2022-12-13 22:21:23,709 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 24 transitions, 121 flow. Second operand has 4 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 0 states have call successors, (0), 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 22:21:23,709 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:21:23,710 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 198 [2022-12-13 22:21:23,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:21:23,788 INFO L130 PetriNetUnfolder]: 365/609 cut-off events. [2022-12-13 22:21:23,788 INFO L131 PetriNetUnfolder]: For 507/507 co-relation queries the response was YES. [2022-12-13 22:21:23,789 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1883 conditions, 609 events. 365/609 cut-off events. For 507/507 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 2514 event pairs, 61 based on Foata normal form. 3/612 useless extension candidates. Maximal degree in co-relation 1876. Up to 304 conditions per place. [2022-12-13 22:21:23,791 INFO L137 encePairwiseOnDemand]: 191/198 looper letters, 33 selfloop transitions, 11 changer transitions 0/44 dead transitions. [2022-12-13 22:21:23,791 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 44 transitions, 285 flow [2022-12-13 22:21:23,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 22:21:23,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 22:21:23,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 380 transitions. [2022-12-13 22:21:23,793 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4797979797979798 [2022-12-13 22:21:23,793 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 380 transitions. [2022-12-13 22:21:23,793 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 380 transitions. [2022-12-13 22:21:23,794 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:21:23,794 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 380 transitions. [2022-12-13 22:21:23,795 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 0 states have call successors, (0), 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 22:21:23,796 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 198.0) internal successors, (990), 5 states have internal predecessors, (990), 0 states have call successors, (0), 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 22:21:23,796 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 198.0) internal successors, (990), 5 states have internal predecessors, (990), 0 states have call successors, (0), 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 22:21:23,796 INFO L175 Difference]: Start difference. First operand has 33 places, 24 transitions, 121 flow. Second operand 4 states and 380 transitions. [2022-12-13 22:21:23,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 44 transitions, 285 flow [2022-12-13 22:21:23,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 44 transitions, 280 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 22:21:23,798 INFO L231 Difference]: Finished difference. Result has 37 places, 28 transitions, 185 flow [2022-12-13 22:21:23,798 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=185, PETRI_PLACES=37, PETRI_TRANSITIONS=28} [2022-12-13 22:21:23,799 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 4 predicate places. [2022-12-13 22:21:23,799 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 28 transitions, 185 flow [2022-12-13 22:21:23,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 0 states have call successors, (0), 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 22:21:23,799 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:21:23,800 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:21:23,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 22:21:23,800 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-12-13 22:21:23,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:21:23,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1337438683, now seen corresponding path program 1 times [2022-12-13 22:21:23,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:21:23,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276861113] [2022-12-13 22:21:23,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:21:23,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:21:23,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:21:23,904 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 22:21:23,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:21:23,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276861113] [2022-12-13 22:21:23,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276861113] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:21:23,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:21:23,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 22:21:23,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705700616] [2022-12-13 22:21:23,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:21:23,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 22:21:23,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:21:23,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 22:21:23,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 22:21:23,915 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 198 [2022-12-13 22:21:23,916 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 28 transitions, 185 flow. Second operand has 4 states, 4 states have (on average 87.5) internal successors, (350), 4 states have internal predecessors, (350), 0 states have call successors, (0), 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 22:21:23,916 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:21:23,916 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 198 [2022-12-13 22:21:23,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:21:24,013 INFO L130 PetriNetUnfolder]: 351/588 cut-off events. [2022-12-13 22:21:24,013 INFO L131 PetriNetUnfolder]: For 973/973 co-relation queries the response was YES. [2022-12-13 22:21:24,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2077 conditions, 588 events. 351/588 cut-off events. For 973/973 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2381 event pairs, 54 based on Foata normal form. 3/591 useless extension candidates. Maximal degree in co-relation 2067. Up to 293 conditions per place. [2022-12-13 22:21:24,017 INFO L137 encePairwiseOnDemand]: 191/198 looper letters, 35 selfloop transitions, 15 changer transitions 0/50 dead transitions. [2022-12-13 22:21:24,017 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 50 transitions, 404 flow [2022-12-13 22:21:24,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 22:21:24,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 22:21:24,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 379 transitions. [2022-12-13 22:21:24,019 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47853535353535354 [2022-12-13 22:21:24,019 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 379 transitions. [2022-12-13 22:21:24,019 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 379 transitions. [2022-12-13 22:21:24,020 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:21:24,020 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 379 transitions. [2022-12-13 22:21:24,021 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 0 states have call successors, (0), 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 22:21:24,022 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 198.0) internal successors, (990), 5 states have internal predecessors, (990), 0 states have call successors, (0), 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 22:21:24,023 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 198.0) internal successors, (990), 5 states have internal predecessors, (990), 0 states have call successors, (0), 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 22:21:24,023 INFO L175 Difference]: Start difference. First operand has 37 places, 28 transitions, 185 flow. Second operand 4 states and 379 transitions. [2022-12-13 22:21:24,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 50 transitions, 404 flow [2022-12-13 22:21:24,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 50 transitions, 404 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 22:21:24,027 INFO L231 Difference]: Finished difference. Result has 43 places, 36 transitions, 330 flow [2022-12-13 22:21:24,027 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=330, PETRI_PLACES=43, PETRI_TRANSITIONS=36} [2022-12-13 22:21:24,028 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 10 predicate places. [2022-12-13 22:21:24,028 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 36 transitions, 330 flow [2022-12-13 22:21:24,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.5) internal successors, (350), 4 states have internal predecessors, (350), 0 states have call successors, (0), 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 22:21:24,028 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:21:24,028 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:21:24,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 22:21:24,029 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-12-13 22:21:24,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:21:24,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1297109093, now seen corresponding path program 1 times [2022-12-13 22:21:24,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:21:24,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967094317] [2022-12-13 22:21:24,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:21:24,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:21:24,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:21:24,113 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 22:21:24,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:21:24,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967094317] [2022-12-13 22:21:24,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967094317] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:21:24,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:21:24,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 22:21:24,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704974227] [2022-12-13 22:21:24,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:21:24,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 22:21:24,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:21:24,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 22:21:24,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 22:21:24,125 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 198 [2022-12-13 22:21:24,125 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 36 transitions, 330 flow. Second operand has 4 states, 4 states have (on average 87.75) internal successors, (351), 4 states have internal predecessors, (351), 0 states have call successors, (0), 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 22:21:24,125 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:21:24,125 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 198 [2022-12-13 22:21:24,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:21:24,222 INFO L130 PetriNetUnfolder]: 374/637 cut-off events. [2022-12-13 22:21:24,222 INFO L131 PetriNetUnfolder]: For 1814/1814 co-relation queries the response was YES. [2022-12-13 22:21:24,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2502 conditions, 637 events. 374/637 cut-off events. For 1814/1814 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2714 event pairs, 67 based on Foata normal form. 6/643 useless extension candidates. Maximal degree in co-relation 2489. Up to 295 conditions per place. [2022-12-13 22:21:24,225 INFO L137 encePairwiseOnDemand]: 191/198 looper letters, 33 selfloop transitions, 19 changer transitions 1/53 dead transitions. [2022-12-13 22:21:24,225 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 53 transitions, 493 flow [2022-12-13 22:21:24,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 22:21:24,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 22:21:24,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 380 transitions. [2022-12-13 22:21:24,226 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4797979797979798 [2022-12-13 22:21:24,227 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 380 transitions. [2022-12-13 22:21:24,227 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 380 transitions. [2022-12-13 22:21:24,227 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:21:24,227 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 380 transitions. [2022-12-13 22:21:24,227 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 0 states have call successors, (0), 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 22:21:24,228 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 198.0) internal successors, (990), 5 states have internal predecessors, (990), 0 states have call successors, (0), 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 22:21:24,228 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 198.0) internal successors, (990), 5 states have internal predecessors, (990), 0 states have call successors, (0), 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 22:21:24,228 INFO L175 Difference]: Start difference. First operand has 43 places, 36 transitions, 330 flow. Second operand 4 states and 380 transitions. [2022-12-13 22:21:24,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 53 transitions, 493 flow [2022-12-13 22:21:24,232 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 53 transitions, 478 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 22:21:24,233 INFO L231 Difference]: Finished difference. Result has 47 places, 36 transitions, 385 flow [2022-12-13 22:21:24,233 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=385, PETRI_PLACES=47, PETRI_TRANSITIONS=36} [2022-12-13 22:21:24,234 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 14 predicate places. [2022-12-13 22:21:24,234 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 36 transitions, 385 flow [2022-12-13 22:21:24,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.75) internal successors, (351), 4 states have internal predecessors, (351), 0 states have call successors, (0), 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 22:21:24,234 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:21:24,234 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:21:24,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 22:21:24,234 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-12-13 22:21:24,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:21:24,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1489063966, now seen corresponding path program 1 times [2022-12-13 22:21:24,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:21:24,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506678033] [2022-12-13 22:21:24,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:21:24,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:21:24,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:21:24,316 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 22:21:24,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:21:24,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506678033] [2022-12-13 22:21:24,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506678033] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:21:24,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:21:24,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 22:21:24,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642580708] [2022-12-13 22:21:24,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:21:24,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 22:21:24,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:21:24,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 22:21:24,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 22:21:24,328 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 198 [2022-12-13 22:21:24,328 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 36 transitions, 385 flow. Second operand has 4 states, 4 states have (on average 90.75) internal successors, (363), 4 states have internal predecessors, (363), 0 states have call successors, (0), 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 22:21:24,328 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:21:24,328 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 198 [2022-12-13 22:21:24,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:21:24,430 INFO L130 PetriNetUnfolder]: 249/487 cut-off events. [2022-12-13 22:21:24,431 INFO L131 PetriNetUnfolder]: For 2429/2453 co-relation queries the response was YES. [2022-12-13 22:21:24,432 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1968 conditions, 487 events. 249/487 cut-off events. For 2429/2453 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 2422 event pairs, 48 based on Foata normal form. 35/517 useless extension candidates. Maximal degree in co-relation 1953. Up to 281 conditions per place. [2022-12-13 22:21:24,434 INFO L137 encePairwiseOnDemand]: 192/198 looper letters, 45 selfloop transitions, 7 changer transitions 23/86 dead transitions. [2022-12-13 22:21:24,434 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 86 transitions, 1009 flow [2022-12-13 22:21:24,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 22:21:24,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 22:21:24,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 479 transitions. [2022-12-13 22:21:24,436 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48383838383838385 [2022-12-13 22:21:24,437 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 479 transitions. [2022-12-13 22:21:24,437 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 479 transitions. [2022-12-13 22:21:24,437 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:21:24,437 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 479 transitions. [2022-12-13 22:21:24,438 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 95.8) internal successors, (479), 5 states have internal predecessors, (479), 0 states have call successors, (0), 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 22:21:24,440 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 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 22:21:24,440 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 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 22:21:24,441 INFO L175 Difference]: Start difference. First operand has 47 places, 36 transitions, 385 flow. Second operand 5 states and 479 transitions. [2022-12-13 22:21:24,441 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 86 transitions, 1009 flow [2022-12-13 22:21:24,446 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 86 transitions, 997 flow, removed 6 selfloop flow, removed 0 redundant places. [2022-12-13 22:21:24,448 INFO L231 Difference]: Finished difference. Result has 54 places, 42 transitions, 429 flow [2022-12-13 22:21:24,448 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=379, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=429, PETRI_PLACES=54, PETRI_TRANSITIONS=42} [2022-12-13 22:21:24,448 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 21 predicate places. [2022-12-13 22:21:24,448 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 42 transitions, 429 flow [2022-12-13 22:21:24,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 90.75) internal successors, (363), 4 states have internal predecessors, (363), 0 states have call successors, (0), 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 22:21:24,449 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:21:24,449 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:21:24,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 22:21:24,449 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-12-13 22:21:24,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:21:24,450 INFO L85 PathProgramCache]: Analyzing trace with hash -674635536, now seen corresponding path program 1 times [2022-12-13 22:21:24,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:21:24,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42877119] [2022-12-13 22:21:24,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:21:24,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:21:24,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:21:24,558 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 22:21:24,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:21:24,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42877119] [2022-12-13 22:21:24,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42877119] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:21:24,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:21:24,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 22:21:24,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572834927] [2022-12-13 22:21:24,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:21:24,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 22:21:24,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:21:24,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 22:21:24,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 22:21:24,573 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 198 [2022-12-13 22:21:24,574 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 42 transitions, 429 flow. Second operand has 5 states, 5 states have (on average 90.4) internal successors, (452), 5 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 22:21:24,574 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:21:24,574 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 198 [2022-12-13 22:21:24,574 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:21:24,675 INFO L130 PetriNetUnfolder]: 198/419 cut-off events. [2022-12-13 22:21:24,675 INFO L131 PetriNetUnfolder]: For 2538/2618 co-relation queries the response was YES. [2022-12-13 22:21:24,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2124 conditions, 419 events. 198/419 cut-off events. For 2538/2618 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 2149 event pairs, 15 based on Foata normal form. 73/489 useless extension candidates. Maximal degree in co-relation 2105. Up to 145 conditions per place. [2022-12-13 22:21:24,677 INFO L137 encePairwiseOnDemand]: 192/198 looper letters, 49 selfloop transitions, 11 changer transitions 32/102 dead transitions. [2022-12-13 22:21:24,677 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 102 transitions, 1208 flow [2022-12-13 22:21:24,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 22:21:24,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 22:21:24,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 669 transitions. [2022-12-13 22:21:24,679 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48268398268398266 [2022-12-13 22:21:24,679 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 669 transitions. [2022-12-13 22:21:24,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 669 transitions. [2022-12-13 22:21:24,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:21:24,679 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 669 transitions. [2022-12-13 22:21:24,680 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 95.57142857142857) internal successors, (669), 7 states have internal predecessors, (669), 0 states have call successors, (0), 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 22:21:24,681 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 198.0) internal successors, (1584), 8 states have internal predecessors, (1584), 0 states have call successors, (0), 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 22:21:24,682 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 198.0) internal successors, (1584), 8 states have internal predecessors, (1584), 0 states have call successors, (0), 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 22:21:24,682 INFO L175 Difference]: Start difference. First operand has 54 places, 42 transitions, 429 flow. Second operand 7 states and 669 transitions. [2022-12-13 22:21:24,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 102 transitions, 1208 flow [2022-12-13 22:21:24,686 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 102 transitions, 1208 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 22:21:24,687 INFO L231 Difference]: Finished difference. Result has 63 places, 45 transitions, 490 flow [2022-12-13 22:21:24,687 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=429, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=490, PETRI_PLACES=63, PETRI_TRANSITIONS=45} [2022-12-13 22:21:24,687 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 30 predicate places. [2022-12-13 22:21:24,687 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 45 transitions, 490 flow [2022-12-13 22:21:24,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 90.4) internal successors, (452), 5 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 22:21:24,688 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:21:24,688 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:21:24,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 22:21:24,688 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-12-13 22:21:24,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:21:24,688 INFO L85 PathProgramCache]: Analyzing trace with hash -289308678, now seen corresponding path program 1 times [2022-12-13 22:21:24,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:21:24,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539941819] [2022-12-13 22:21:24,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:21:24,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:21:24,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:21:24,753 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 22:21:24,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:21:24,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539941819] [2022-12-13 22:21:24,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539941819] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:21:24,754 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:21:24,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 22:21:24,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862119325] [2022-12-13 22:21:24,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:21:24,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 22:21:24,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:21:24,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 22:21:24,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 22:21:24,764 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 198 [2022-12-13 22:21:24,765 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 45 transitions, 490 flow. Second operand has 4 states, 4 states have (on average 88.25) internal successors, (353), 4 states have internal predecessors, (353), 0 states have call successors, (0), 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 22:21:24,765 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:21:24,765 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 198 [2022-12-13 22:21:24,765 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:21:24,855 INFO L130 PetriNetUnfolder]: 256/535 cut-off events. [2022-12-13 22:21:24,855 INFO L131 PetriNetUnfolder]: For 4065/4065 co-relation queries the response was YES. [2022-12-13 22:21:24,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3252 conditions, 535 events. 256/535 cut-off events. For 4065/4065 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 2725 event pairs, 43 based on Foata normal form. 6/541 useless extension candidates. Maximal degree in co-relation 3229. Up to 232 conditions per place. [2022-12-13 22:21:24,857 INFO L137 encePairwiseOnDemand]: 191/198 looper letters, 37 selfloop transitions, 16 changer transitions 26/79 dead transitions. [2022-12-13 22:21:24,858 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 79 transitions, 923 flow [2022-12-13 22:21:24,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 22:21:24,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 22:21:24,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 376 transitions. [2022-12-13 22:21:24,859 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47474747474747475 [2022-12-13 22:21:24,859 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 376 transitions. [2022-12-13 22:21:24,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 376 transitions. [2022-12-13 22:21:24,859 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:21:24,859 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 376 transitions. [2022-12-13 22:21:24,860 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 94.0) internal successors, (376), 4 states have internal predecessors, (376), 0 states have call successors, (0), 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 22:21:24,860 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 198.0) internal successors, (990), 5 states have internal predecessors, (990), 0 states have call successors, (0), 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 22:21:24,861 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 198.0) internal successors, (990), 5 states have internal predecessors, (990), 0 states have call successors, (0), 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 22:21:24,861 INFO L175 Difference]: Start difference. First operand has 63 places, 45 transitions, 490 flow. Second operand 4 states and 376 transitions. [2022-12-13 22:21:24,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 79 transitions, 923 flow [2022-12-13 22:21:24,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 79 transitions, 851 flow, removed 17 selfloop flow, removed 5 redundant places. [2022-12-13 22:21:24,868 INFO L231 Difference]: Finished difference. Result has 61 places, 37 transitions, 432 flow [2022-12-13 22:21:24,868 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=462, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=432, PETRI_PLACES=61, PETRI_TRANSITIONS=37} [2022-12-13 22:21:24,868 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 28 predicate places. [2022-12-13 22:21:24,868 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 37 transitions, 432 flow [2022-12-13 22:21:24,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 88.25) internal successors, (353), 4 states have internal predecessors, (353), 0 states have call successors, (0), 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 22:21:24,868 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:21:24,869 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:21:24,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 22:21:24,869 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-12-13 22:21:24,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:21:24,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1861997125, now seen corresponding path program 1 times [2022-12-13 22:21:24,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:21:24,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563950818] [2022-12-13 22:21:24,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:21:24,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:21:24,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:21:24,949 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 22:21:24,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:21:24,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563950818] [2022-12-13 22:21:24,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563950818] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:21:24,949 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:21:24,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 22:21:24,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919496332] [2022-12-13 22:21:24,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:21:24,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 22:21:24,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:21:24,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 22:21:24,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-13 22:21:24,962 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 198 [2022-12-13 22:21:24,963 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 37 transitions, 432 flow. Second operand has 6 states, 6 states have (on average 90.16666666666667) internal successors, (541), 6 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:21:24,963 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:21:24,963 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 198 [2022-12-13 22:21:24,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:21:25,041 INFO L130 PetriNetUnfolder]: 95/214 cut-off events. [2022-12-13 22:21:25,041 INFO L131 PetriNetUnfolder]: For 1459/1502 co-relation queries the response was YES. [2022-12-13 22:21:25,042 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1200 conditions, 214 events. 95/214 cut-off events. For 1459/1502 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 851 event pairs, 11 based on Foata normal form. 31/242 useless extension candidates. Maximal degree in co-relation 1178. Up to 73 conditions per place. [2022-12-13 22:21:25,043 INFO L137 encePairwiseOnDemand]: 192/198 looper letters, 13 selfloop transitions, 10 changer transitions 41/66 dead transitions. [2022-12-13 22:21:25,043 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 66 transitions, 863 flow [2022-12-13 22:21:25,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 22:21:25,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 22:21:25,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 657 transitions. [2022-12-13 22:21:25,045 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.474025974025974 [2022-12-13 22:21:25,045 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 657 transitions. [2022-12-13 22:21:25,045 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 657 transitions. [2022-12-13 22:21:25,045 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:21:25,045 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 657 transitions. [2022-12-13 22:21:25,046 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 93.85714285714286) internal successors, (657), 7 states have internal predecessors, (657), 0 states have call successors, (0), 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 22:21:25,047 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 198.0) internal successors, (1584), 8 states have internal predecessors, (1584), 0 states have call successors, (0), 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 22:21:25,048 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 198.0) internal successors, (1584), 8 states have internal predecessors, (1584), 0 states have call successors, (0), 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 22:21:25,048 INFO L175 Difference]: Start difference. First operand has 61 places, 37 transitions, 432 flow. Second operand 7 states and 657 transitions. [2022-12-13 22:21:25,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 66 transitions, 863 flow [2022-12-13 22:21:25,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 66 transitions, 775 flow, removed 14 selfloop flow, removed 4 redundant places. [2022-12-13 22:21:25,052 INFO L231 Difference]: Finished difference. Result has 63 places, 22 transitions, 219 flow [2022-12-13 22:21:25,052 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=380, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=219, PETRI_PLACES=63, PETRI_TRANSITIONS=22} [2022-12-13 22:21:25,052 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 30 predicate places. [2022-12-13 22:21:25,052 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 22 transitions, 219 flow [2022-12-13 22:21:25,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 90.16666666666667) internal successors, (541), 6 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:21:25,052 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:21:25,052 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:21:25,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 22:21:25,053 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-12-13 22:21:25,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:21:25,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1066872818, now seen corresponding path program 1 times [2022-12-13 22:21:25,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:21:25,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381981025] [2022-12-13 22:21:25,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:21:25,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:21:25,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:21:25,126 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 22:21:25,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:21:25,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381981025] [2022-12-13 22:21:25,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381981025] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:21:25,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:21:25,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 22:21:25,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665781884] [2022-12-13 22:21:25,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:21:25,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 22:21:25,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:21:25,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 22:21:25,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 22:21:25,138 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 198 [2022-12-13 22:21:25,138 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 22 transitions, 219 flow. Second operand has 5 states, 5 states have (on average 88.2) internal successors, (441), 5 states have internal predecessors, (441), 0 states have call successors, (0), 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 22:21:25,138 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:21:25,138 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 198 [2022-12-13 22:21:25,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:21:25,161 INFO L130 PetriNetUnfolder]: 11/35 cut-off events. [2022-12-13 22:21:25,161 INFO L131 PetriNetUnfolder]: For 216/216 co-relation queries the response was YES. [2022-12-13 22:21:25,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 248 conditions, 35 events. 11/35 cut-off events. For 216/216 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 42 event pairs, 3 based on Foata normal form. 1/36 useless extension candidates. Maximal degree in co-relation 224. Up to 23 conditions per place. [2022-12-13 22:21:25,162 INFO L137 encePairwiseOnDemand]: 195/198 looper letters, 0 selfloop transitions, 0 changer transitions 22/22 dead transitions. [2022-12-13 22:21:25,162 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 22 transitions, 254 flow [2022-12-13 22:21:25,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 22:21:25,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 22:21:25,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 357 transitions. [2022-12-13 22:21:25,164 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45075757575757575 [2022-12-13 22:21:25,164 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 357 transitions. [2022-12-13 22:21:25,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 357 transitions. [2022-12-13 22:21:25,164 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:21:25,164 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 357 transitions. [2022-12-13 22:21:25,165 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 89.25) internal successors, (357), 4 states have internal predecessors, (357), 0 states have call successors, (0), 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 22:21:25,165 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 198.0) internal successors, (990), 5 states have internal predecessors, (990), 0 states have call successors, (0), 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 22:21:25,166 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 198.0) internal successors, (990), 5 states have internal predecessors, (990), 0 states have call successors, (0), 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 22:21:25,166 INFO L175 Difference]: Start difference. First operand has 63 places, 22 transitions, 219 flow. Second operand 4 states and 357 transitions. [2022-12-13 22:21:25,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 22 transitions, 254 flow [2022-12-13 22:21:25,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 22 transitions, 137 flow, removed 9 selfloop flow, removed 27 redundant places. [2022-12-13 22:21:25,167 INFO L231 Difference]: Finished difference. Result has 36 places, 0 transitions, 0 flow [2022-12-13 22:21:25,167 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=36, PETRI_TRANSITIONS=0} [2022-12-13 22:21:25,167 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 3 predicate places. [2022-12-13 22:21:25,167 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 0 transitions, 0 flow [2022-12-13 22:21:25,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 88.2) internal successors, (441), 5 states have internal predecessors, (441), 0 states have call successors, (0), 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 22:21:25,169 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 11 remaining) [2022-12-13 22:21:25,169 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 11 remaining) [2022-12-13 22:21:25,170 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 11 remaining) [2022-12-13 22:21:25,170 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 11 remaining) [2022-12-13 22:21:25,170 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 11 remaining) [2022-12-13 22:21:25,170 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 11 remaining) [2022-12-13 22:21:25,170 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (4 of 11 remaining) [2022-12-13 22:21:25,170 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (3 of 11 remaining) [2022-12-13 22:21:25,170 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 11 remaining) [2022-12-13 22:21:25,170 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 11 remaining) [2022-12-13 22:21:25,170 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 11 remaining) [2022-12-13 22:21:25,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 22:21:25,170 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:21:25,172 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 22:21:25,172 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 22:21:25,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 10:21:25 BasicIcfg [2022-12-13 22:21:25,175 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 22:21:25,175 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 22:21:25,175 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 22:21:25,175 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 22:21:25,175 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:21:20" (3/4) ... [2022-12-13 22:21:25,178 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 22:21:25,183 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-12-13 22:21:25,183 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-12-13 22:21:25,183 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-12-13 22:21:25,186 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-12-13 22:21:25,186 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 22:21:25,186 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-13 22:21:25,186 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 22:21:25,206 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db35cca1-2c35-4271-84c6-b029f2fb45aa/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 22:21:25,207 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 22:21:25,207 INFO L158 Benchmark]: Toolchain (without parser) took 5763.74ms. Allocated memory was 117.4MB in the beginning and 205.5MB in the end (delta: 88.1MB). Free memory was 80.9MB in the beginning and 59.1MB in the end (delta: 21.9MB). Peak memory consumption was 111.9MB. Max. memory is 16.1GB. [2022-12-13 22:21:25,207 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 117.4MB. Free memory is still 86.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 22:21:25,208 INFO L158 Benchmark]: CACSL2BoogieTranslator took 332.84ms. Allocated memory is still 117.4MB. Free memory was 80.5MB in the beginning and 57.8MB in the end (delta: 22.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-12-13 22:21:25,208 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.22ms. Allocated memory is still 117.4MB. Free memory was 57.8MB in the beginning and 55.6MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 22:21:25,208 INFO L158 Benchmark]: Boogie Preprocessor took 16.50ms. Allocated memory is still 117.4MB. Free memory was 55.6MB in the beginning and 54.3MB in the end (delta: 1.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 22:21:25,208 INFO L158 Benchmark]: RCFGBuilder took 316.21ms. Allocated memory was 117.4MB in the beginning and 205.5MB in the end (delta: 88.1MB). Free memory was 54.0MB in the beginning and 168.1MB in the end (delta: -114.1MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. [2022-12-13 22:21:25,209 INFO L158 Benchmark]: TraceAbstraction took 5031.14ms. Allocated memory is still 205.5MB. Free memory was 167.2MB in the beginning and 62.2MB in the end (delta: 105.0MB). Peak memory consumption was 105.8MB. Max. memory is 16.1GB. [2022-12-13 22:21:25,209 INFO L158 Benchmark]: Witness Printer took 31.70ms. Allocated memory is still 205.5MB. Free memory was 62.2MB in the beginning and 59.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 22:21:25,210 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 117.4MB. Free memory is still 86.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 332.84ms. Allocated memory is still 117.4MB. Free memory was 80.5MB in the beginning and 57.8MB in the end (delta: 22.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.22ms. Allocated memory is still 117.4MB. Free memory was 57.8MB in the beginning and 55.6MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 16.50ms. Allocated memory is still 117.4MB. Free memory was 55.6MB in the beginning and 54.3MB in the end (delta: 1.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 316.21ms. Allocated memory was 117.4MB in the beginning and 205.5MB in the end (delta: 88.1MB). Free memory was 54.0MB in the beginning and 168.1MB in the end (delta: -114.1MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. * TraceAbstraction took 5031.14ms. Allocated memory is still 205.5MB. Free memory was 167.2MB in the beginning and 62.2MB in the end (delta: 105.0MB). Peak memory consumption was 105.8MB. Max. memory is 16.1GB. * Witness Printer took 31.70ms. Allocated memory is still 205.5MB. Free memory was 62.2MB in the beginning and 59.1MB 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: 2.1s, 99 PlacesBefore, 33 PlacesAfterwards, 91 TransitionsBefore, 24 TransitionsAfterwards, 1518 CoEnabledTransitionPairs, 7 FixpointIterations, 30 TrivialSequentialCompositions, 60 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 99 TotalNumberOfCompositions, 2921 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1523, independent: 1419, independent conditional: 0, independent unconditional: 1419, dependent: 104, dependent conditional: 0, dependent unconditional: 104, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 863, independent: 836, independent conditional: 0, independent unconditional: 836, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1523, independent: 583, independent conditional: 0, independent unconditional: 583, dependent: 77, dependent conditional: 0, dependent unconditional: 77, unknown: 863, unknown conditional: 0, unknown unconditional: 863] , Statistics on independence cache: Total cache size (in pairs): 49, Positive cache size: 40, Positive conditional cache size: 0, Positive unconditional cache size: 40, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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: 769]: 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, 121 locations, 11 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: 4.9s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 414 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 288 mSDsluCounter, 79 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 39 mSDsCounter, 80 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 728 IncrementalHoareTripleChecker+Invalid, 808 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 80 mSolverCounterUnsat, 40 mSDtfsCounter, 728 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=490occurred in iteration=9, InterpolantAutomatonStates: 53, 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, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 122 NumberOfCodeBlocks, 122 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 110 ConstructedInterpolants, 0 QuantifiedInterpolants, 684 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 22:21:25,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db35cca1-2c35-4271-84c6-b029f2fb45aa/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