./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix025_pso.opt_rmo.opt.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_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/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_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix025_pso.opt_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/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_409688f1-e05b-44ac-988a-4caa7f7d7d55/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 3bbcbfea07b4de27a61735028fd08097276598be4815bd7ea5f14ba44ebf2380 --- 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 19:27:04,357 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 19:27:04,359 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 19:27:04,379 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 19:27:04,379 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 19:27:04,380 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 19:27:04,382 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 19:27:04,383 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 19:27:04,385 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 19:27:04,386 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 19:27:04,387 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 19:27:04,388 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 19:27:04,388 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 19:27:04,389 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 19:27:04,390 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 19:27:04,391 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 19:27:04,392 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 19:27:04,393 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 19:27:04,395 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 19:27:04,396 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 19:27:04,398 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 19:27:04,399 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 19:27:04,400 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 19:27:04,401 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 19:27:04,404 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 19:27:04,405 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 19:27:04,405 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 19:27:04,406 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 19:27:04,406 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 19:27:04,407 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 19:27:04,407 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 19:27:04,408 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 19:27:04,409 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 19:27:04,409 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 19:27:04,410 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 19:27:04,411 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 19:27:04,411 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 19:27:04,411 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 19:27:04,412 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 19:27:04,412 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 19:27:04,413 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 19:27:04,414 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-12-13 19:27:04,434 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 19:27:04,434 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 19:27:04,434 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 19:27:04,435 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 19:27:04,435 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 19:27:04,436 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 19:27:04,436 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 19:27:04,436 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 19:27:04,437 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 19:27:04,437 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 19:27:04,437 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 19:27:04,437 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 19:27:04,437 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 19:27:04,438 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 19:27:04,438 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 19:27:04,438 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 19:27:04,438 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 19:27:04,438 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 19:27:04,438 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 19:27:04,439 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 19:27:04,439 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 19:27:04,439 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 19:27:04,439 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 19:27:04,439 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 19:27:04,440 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 19:27:04,440 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:27:04,440 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 19:27:04,440 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 19:27:04,440 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 19:27:04,441 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 19:27:04,441 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 19:27:04,441 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 19:27:04,441 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 19:27:04,441 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 19:27:04,441 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_409688f1-e05b-44ac-988a-4caa7f7d7d55/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3bbcbfea07b4de27a61735028fd08097276598be4815bd7ea5f14ba44ebf2380 [2022-12-13 19:27:04,636 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 19:27:04,653 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 19:27:04,655 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 19:27:04,656 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 19:27:04,656 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 19:27:04,657 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-wmm/mix025_pso.opt_rmo.opt.i [2022-12-13 19:27:07,251 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 19:27:07,407 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 19:27:07,407 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/sv-benchmarks/c/pthread-wmm/mix025_pso.opt_rmo.opt.i [2022-12-13 19:27:07,416 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/data/432f8bc51/79787319a8f242b584408aa6308b32b9/FLAG6735fe12c [2022-12-13 19:27:07,427 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/data/432f8bc51/79787319a8f242b584408aa6308b32b9 [2022-12-13 19:27:07,429 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 19:27:07,430 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 19:27:07,431 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 19:27:07,431 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 19:27:07,433 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 19:27:07,434 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:27:07" (1/1) ... [2022-12-13 19:27:07,435 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f15e38e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:27:07, skipping insertion in model container [2022-12-13 19:27:07,435 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:27:07" (1/1) ... [2022-12-13 19:27:07,441 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 19:27:07,470 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 19:27:07,583 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_409688f1-e05b-44ac-988a-4caa7f7d7d55/sv-benchmarks/c/pthread-wmm/mix025_pso.opt_rmo.opt.i[999,1012] [2022-12-13 19:27:07,694 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:07,695 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:07,695 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:07,706 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:07,706 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:07,706 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:07,707 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:07,707 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:07,708 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:07,710 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:07,711 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:07,711 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:07,711 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:07,714 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:07,715 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:07,715 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:07,716 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:07,717 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:07,717 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:07,717 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:07,717 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:07,718 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:07,718 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:07,721 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:07,721 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:07,722 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:07,728 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:07,729 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:07,729 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:07,732 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:07,732 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:07,733 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:07,734 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:27:07,745 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 19:27:07,757 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_409688f1-e05b-44ac-988a-4caa7f7d7d55/sv-benchmarks/c/pthread-wmm/mix025_pso.opt_rmo.opt.i[999,1012] [2022-12-13 19:27:07,781 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:07,782 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:07,782 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:07,789 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:07,789 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:07,790 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:07,790 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:07,790 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:07,791 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:07,792 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:07,793 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:07,793 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:07,794 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:07,796 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:07,796 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:07,796 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:07,797 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:07,797 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:07,798 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:07,798 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:07,798 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:07,799 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:07,799 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:07,801 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:07,801 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:07,802 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:07,805 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:07,805 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:07,805 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:07,807 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:07,808 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:07,808 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:07,809 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:27:07,852 INFO L208 MainTranslator]: Completed translation [2022-12-13 19:27:07,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:27:07 WrapperNode [2022-12-13 19:27:07,853 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 19:27:07,854 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 19:27:07,854 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 19:27:07,854 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 19:27:07,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:27:07" (1/1) ... [2022-12-13 19:27:07,879 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:27:07" (1/1) ... [2022-12-13 19:27:07,905 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 129 [2022-12-13 19:27:07,905 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 19:27:07,906 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 19:27:07,906 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 19:27:07,906 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 19:27:07,915 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:27:07" (1/1) ... [2022-12-13 19:27:07,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:27:07" (1/1) ... [2022-12-13 19:27:07,919 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:27:07" (1/1) ... [2022-12-13 19:27:07,919 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:27:07" (1/1) ... [2022-12-13 19:27:07,929 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:27:07" (1/1) ... [2022-12-13 19:27:07,931 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:27:07" (1/1) ... [2022-12-13 19:27:07,934 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:27:07" (1/1) ... [2022-12-13 19:27:07,936 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:27:07" (1/1) ... [2022-12-13 19:27:07,941 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 19:27:07,942 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 19:27:07,942 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 19:27:07,942 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 19:27:07,943 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:27:07" (1/1) ... [2022-12-13 19:27:07,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:27:07,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:27:07,972 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 19:27:07,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 19:27:08,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 19:27:08,007 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 19:27:08,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 19:27:08,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 19:27:08,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 19:27:08,008 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 19:27:08,008 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 19:27:08,008 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 19:27:08,008 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 19:27:08,009 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-13 19:27:08,009 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-13 19:27:08,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 19:27:08,009 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 19:27:08,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 19:27:08,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 19:27:08,011 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 19:27:08,132 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 19:27:08,135 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 19:27:08,391 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 19:27:08,458 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 19:27:08,458 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 19:27:08,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:27:08 BoogieIcfgContainer [2022-12-13 19:27:08,460 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 19:27:08,461 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 19:27:08,461 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 19:27:08,463 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 19:27:08,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 07:27:07" (1/3) ... [2022-12-13 19:27:08,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6709591e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:27:08, skipping insertion in model container [2022-12-13 19:27:08,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:27:07" (2/3) ... [2022-12-13 19:27:08,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6709591e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:27:08, skipping insertion in model container [2022-12-13 19:27:08,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:27:08" (3/3) ... [2022-12-13 19:27:08,465 INFO L112 eAbstractionObserver]: Analyzing ICFG mix025_pso.opt_rmo.opt.i [2022-12-13 19:27:08,479 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 19:27:08,479 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2022-12-13 19:27:08,479 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 19:27:08,517 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 19:27:08,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 134 places, 126 transitions, 267 flow [2022-12-13 19:27:08,576 INFO L130 PetriNetUnfolder]: 2/123 cut-off events. [2022-12-13 19:27:08,576 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 19:27:08,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 123 events. 2/123 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 76 event pairs, 0 based on Foata normal form. 0/112 useless extension candidates. Maximal degree in co-relation 80. Up to 2 conditions per place. [2022-12-13 19:27:08,580 INFO L82 GeneralOperation]: Start removeDead. Operand has 134 places, 126 transitions, 267 flow [2022-12-13 19:27:08,583 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 131 places, 123 transitions, 255 flow [2022-12-13 19:27:08,586 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 19:27:08,594 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 131 places, 123 transitions, 255 flow [2022-12-13 19:27:08,596 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 131 places, 123 transitions, 255 flow [2022-12-13 19:27:08,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 131 places, 123 transitions, 255 flow [2022-12-13 19:27:08,614 INFO L130 PetriNetUnfolder]: 2/123 cut-off events. [2022-12-13 19:27:08,614 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 19:27:08,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 123 events. 2/123 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 76 event pairs, 0 based on Foata normal form. 0/112 useless extension candidates. Maximal degree in co-relation 80. Up to 2 conditions per place. [2022-12-13 19:27:08,616 INFO L119 LiptonReduction]: Number of co-enabled transitions 2264 [2022-12-13 19:27:11,557 INFO L134 LiptonReduction]: Checked pairs total: 6053 [2022-12-13 19:27:11,557 INFO L136 LiptonReduction]: Total number of compositions: 122 [2022-12-13 19:27:11,571 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 19:27:11,577 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;@11ed7422, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 19:27:11,577 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-12-13 19:27:11,578 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 19:27:11,579 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 19:27:11,579 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:27:11,579 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 19:27:11,580 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 19:27:11,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:27:11,584 INFO L85 PathProgramCache]: Analyzing trace with hash 534, now seen corresponding path program 1 times [2022-12-13 19:27:11,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:27:11,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189154686] [2022-12-13 19:27:11,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:27:11,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:27:11,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:27:11,681 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 19:27:11,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:27:11,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189154686] [2022-12-13 19:27:11,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189154686] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:27:11,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:27:11,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 19:27:11,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091473516] [2022-12-13 19:27:11,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:27:11,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 19:27:11,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:27:11,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 19:27:11,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 19:27:11,708 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 248 [2022-12-13 19:27:11,710 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 32 transitions, 73 flow. Second operand has 2 states, 2 states have (on average 114.5) internal successors, (229), 2 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:11,710 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:27:11,710 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 248 [2022-12-13 19:27:11,711 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:27:11,953 INFO L130 PetriNetUnfolder]: 1277/1926 cut-off events. [2022-12-13 19:27:11,954 INFO L131 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2022-12-13 19:27:11,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3867 conditions, 1926 events. 1277/1926 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 9075 event pairs, 1277 based on Foata normal form. 0/1602 useless extension candidates. Maximal degree in co-relation 3856. Up to 1887 conditions per place. [2022-12-13 19:27:11,964 INFO L137 encePairwiseOnDemand]: 241/248 looper letters, 22 selfloop transitions, 0 changer transitions 0/25 dead transitions. [2022-12-13 19:27:11,964 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 25 transitions, 103 flow [2022-12-13 19:27:11,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 19:27:11,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 19:27:11,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 257 transitions. [2022-12-13 19:27:11,973 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5181451612903226 [2022-12-13 19:27:11,974 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 257 transitions. [2022-12-13 19:27:11,974 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 257 transitions. [2022-12-13 19:27:11,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:27:11,977 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 257 transitions. [2022-12-13 19:27:11,979 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 128.5) internal successors, (257), 2 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:11,982 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 248.0) internal successors, (744), 3 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:11,982 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 248.0) internal successors, (744), 3 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:11,984 INFO L175 Difference]: Start difference. First operand has 41 places, 32 transitions, 73 flow. Second operand 2 states and 257 transitions. [2022-12-13 19:27:11,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 25 transitions, 103 flow [2022-12-13 19:27:11,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 25 transitions, 100 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 19:27:11,988 INFO L231 Difference]: Finished difference. Result has 33 places, 25 transitions, 56 flow [2022-12-13 19:27:11,989 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=56, PETRI_PLACES=33, PETRI_TRANSITIONS=25} [2022-12-13 19:27:11,992 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, -8 predicate places. [2022-12-13 19:27:11,992 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 25 transitions, 56 flow [2022-12-13 19:27:11,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 114.5) internal successors, (229), 2 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:11,993 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:27:11,993 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 19:27:11,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 19:27:11,993 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 19:27:11,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:27:11,994 INFO L85 PathProgramCache]: Analyzing trace with hash 503932769, now seen corresponding path program 1 times [2022-12-13 19:27:11,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:27:11,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405627056] [2022-12-13 19:27:11,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:27:11,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:27:12,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:27:12,186 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 19:27:12,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:27:12,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405627056] [2022-12-13 19:27:12,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405627056] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:27:12,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:27:12,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 19:27:12,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617195169] [2022-12-13 19:27:12,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:27:12,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 19:27:12,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:27:12,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 19:27:12,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:27:12,192 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 248 [2022-12-13 19:27:12,192 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 25 transitions, 56 flow. Second operand has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:12,192 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:27:12,192 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 248 [2022-12-13 19:27:12,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:27:12,399 INFO L130 PetriNetUnfolder]: 999/1560 cut-off events. [2022-12-13 19:27:12,399 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 19:27:12,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3093 conditions, 1560 events. 999/1560 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 7331 event pairs, 277 based on Foata normal form. 0/1420 useless extension candidates. Maximal degree in co-relation 3090. Up to 1195 conditions per place. [2022-12-13 19:27:12,405 INFO L137 encePairwiseOnDemand]: 245/248 looper letters, 31 selfloop transitions, 2 changer transitions 2/38 dead transitions. [2022-12-13 19:27:12,405 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 38 transitions, 154 flow [2022-12-13 19:27:12,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 19:27:12,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 19:27:12,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 375 transitions. [2022-12-13 19:27:12,407 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5040322580645161 [2022-12-13 19:27:12,407 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 375 transitions. [2022-12-13 19:27:12,407 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 375 transitions. [2022-12-13 19:27:12,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:27:12,408 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 375 transitions. [2022-12-13 19:27:12,409 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:12,410 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:12,410 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:12,410 INFO L175 Difference]: Start difference. First operand has 33 places, 25 transitions, 56 flow. Second operand 3 states and 375 transitions. [2022-12-13 19:27:12,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 38 transitions, 154 flow [2022-12-13 19:27:12,411 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 38 transitions, 154 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 19:27:12,411 INFO L231 Difference]: Finished difference. Result has 34 places, 23 transitions, 56 flow [2022-12-13 19:27:12,411 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=56, PETRI_PLACES=34, PETRI_TRANSITIONS=23} [2022-12-13 19:27:12,412 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, -7 predicate places. [2022-12-13 19:27:12,412 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 23 transitions, 56 flow [2022-12-13 19:27:12,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:12,412 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:27:12,413 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:27:12,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 19:27:12,413 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 19:27:12,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:27:12,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1506182156, now seen corresponding path program 1 times [2022-12-13 19:27:12,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:27:12,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415715427] [2022-12-13 19:27:12,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:27:12,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:27:12,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:27:12,560 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 19:27:12,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:27:12,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415715427] [2022-12-13 19:27:12,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415715427] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:27:12,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:27:12,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 19:27:12,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124304100] [2022-12-13 19:27:12,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:27:12,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 19:27:12,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:27:12,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 19:27:12,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:27:12,575 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 248 [2022-12-13 19:27:12,575 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 23 transitions, 56 flow. Second operand has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:12,576 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:27:12,576 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 248 [2022-12-13 19:27:12,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:27:12,989 INFO L130 PetriNetUnfolder]: 2575/3830 cut-off events. [2022-12-13 19:27:12,990 INFO L131 PetriNetUnfolder]: For 192/192 co-relation queries the response was YES. [2022-12-13 19:27:12,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7921 conditions, 3830 events. 2575/3830 cut-off events. For 192/192 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 19086 event pairs, 809 based on Foata normal form. 0/3720 useless extension candidates. Maximal degree in co-relation 7917. Up to 2322 conditions per place. [2022-12-13 19:27:13,003 INFO L137 encePairwiseOnDemand]: 240/248 looper letters, 36 selfloop transitions, 7 changer transitions 0/43 dead transitions. [2022-12-13 19:27:13,003 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 43 transitions, 188 flow [2022-12-13 19:27:13,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 19:27:13,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 19:27:13,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 362 transitions. [2022-12-13 19:27:13,014 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48655913978494625 [2022-12-13 19:27:13,015 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 362 transitions. [2022-12-13 19:27:13,015 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 362 transitions. [2022-12-13 19:27:13,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:27:13,015 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 362 transitions. [2022-12-13 19:27:13,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 120.66666666666667) internal successors, (362), 3 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:13,019 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:13,020 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:13,020 INFO L175 Difference]: Start difference. First operand has 34 places, 23 transitions, 56 flow. Second operand 3 states and 362 transitions. [2022-12-13 19:27:13,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 43 transitions, 188 flow [2022-12-13 19:27:13,021 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 43 transitions, 182 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 19:27:13,022 INFO L231 Difference]: Finished difference. Result has 35 places, 29 transitions, 106 flow [2022-12-13 19:27:13,022 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=106, PETRI_PLACES=35, PETRI_TRANSITIONS=29} [2022-12-13 19:27:13,023 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, -6 predicate places. [2022-12-13 19:27:13,023 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 29 transitions, 106 flow [2022-12-13 19:27:13,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:13,023 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:27:13,023 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:27:13,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 19:27:13,024 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 19:27:13,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:27:13,024 INFO L85 PathProgramCache]: Analyzing trace with hash 552991917, now seen corresponding path program 1 times [2022-12-13 19:27:13,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:27:13,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293685591] [2022-12-13 19:27:13,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:27:13,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:27:13,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:27:13,173 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 19:27:13,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:27:13,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293685591] [2022-12-13 19:27:13,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293685591] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:27:13,173 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:27:13,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 19:27:13,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559377991] [2022-12-13 19:27:13,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:27:13,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 19:27:13,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:27:13,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 19:27:13,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 19:27:13,188 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 248 [2022-12-13 19:27:13,189 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 29 transitions, 106 flow. Second operand has 4 states, 4 states have (on average 108.5) internal successors, (434), 4 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:13,189 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:27:13,189 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 248 [2022-12-13 19:27:13,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:27:13,580 INFO L130 PetriNetUnfolder]: 2477/3684 cut-off events. [2022-12-13 19:27:13,580 INFO L131 PetriNetUnfolder]: For 1516/1516 co-relation queries the response was YES. [2022-12-13 19:27:13,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9338 conditions, 3684 events. 2477/3684 cut-off events. For 1516/1516 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 17753 event pairs, 579 based on Foata normal form. 30/3714 useless extension candidates. Maximal degree in co-relation 9333. Up to 1681 conditions per place. [2022-12-13 19:27:13,594 INFO L137 encePairwiseOnDemand]: 241/248 looper letters, 46 selfloop transitions, 7 changer transitions 0/53 dead transitions. [2022-12-13 19:27:13,594 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 53 transitions, 278 flow [2022-12-13 19:27:13,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 19:27:13,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 19:27:13,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 473 transitions. [2022-12-13 19:27:13,596 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47681451612903225 [2022-12-13 19:27:13,596 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 473 transitions. [2022-12-13 19:27:13,597 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 473 transitions. [2022-12-13 19:27:13,597 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:27:13,597 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 473 transitions. [2022-12-13 19:27:13,598 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 118.25) internal successors, (473), 4 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:13,599 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 248.0) internal successors, (1240), 5 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:13,599 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 248.0) internal successors, (1240), 5 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:13,599 INFO L175 Difference]: Start difference. First operand has 35 places, 29 transitions, 106 flow. Second operand 4 states and 473 transitions. [2022-12-13 19:27:13,599 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 53 transitions, 278 flow [2022-12-13 19:27:13,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 53 transitions, 258 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 19:27:13,605 INFO L231 Difference]: Finished difference. Result has 39 places, 32 transitions, 140 flow [2022-12-13 19:27:13,605 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=140, PETRI_PLACES=39, PETRI_TRANSITIONS=32} [2022-12-13 19:27:13,606 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, -2 predicate places. [2022-12-13 19:27:13,606 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 32 transitions, 140 flow [2022-12-13 19:27:13,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 108.5) internal successors, (434), 4 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:13,606 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:27:13,606 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:27:13,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 19:27:13,606 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 19:27:13,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:27:13,607 INFO L85 PathProgramCache]: Analyzing trace with hash 552994174, now seen corresponding path program 1 times [2022-12-13 19:27:13,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:27:13,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457546562] [2022-12-13 19:27:13,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:27:13,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:27:13,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:27:13,885 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 19:27:13,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:27:13,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457546562] [2022-12-13 19:27:13,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457546562] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:27:13,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:27:13,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 19:27:13,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405595309] [2022-12-13 19:27:13,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:27:13,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 19:27:13,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:27:13,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 19:27:13,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 19:27:13,987 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 248 [2022-12-13 19:27:13,988 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 32 transitions, 140 flow. Second operand has 6 states, 6 states have (on average 100.66666666666667) internal successors, (604), 6 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:13,988 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:27:13,988 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 248 [2022-12-13 19:27:13,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:27:14,378 INFO L130 PetriNetUnfolder]: 1498/2401 cut-off events. [2022-12-13 19:27:14,378 INFO L131 PetriNetUnfolder]: For 1593/1682 co-relation queries the response was YES. [2022-12-13 19:27:14,382 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6351 conditions, 2401 events. 1498/2401 cut-off events. For 1593/1682 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 12877 event pairs, 356 based on Foata normal form. 191/2527 useless extension candidates. Maximal degree in co-relation 6344. Up to 1498 conditions per place. [2022-12-13 19:27:14,389 INFO L137 encePairwiseOnDemand]: 243/248 looper letters, 27 selfloop transitions, 3 changer transitions 15/52 dead transitions. [2022-12-13 19:27:14,389 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 52 transitions, 294 flow [2022-12-13 19:27:14,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 19:27:14,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 19:27:14,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 632 transitions. [2022-12-13 19:27:14,392 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42473118279569894 [2022-12-13 19:27:14,392 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 632 transitions. [2022-12-13 19:27:14,392 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 632 transitions. [2022-12-13 19:27:14,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:27:14,393 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 632 transitions. [2022-12-13 19:27:14,394 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 105.33333333333333) internal successors, (632), 6 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:14,395 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 248.0) internal successors, (1736), 7 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:14,396 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 248.0) internal successors, (1736), 7 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:14,396 INFO L175 Difference]: Start difference. First operand has 39 places, 32 transitions, 140 flow. Second operand 6 states and 632 transitions. [2022-12-13 19:27:14,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 52 transitions, 294 flow [2022-12-13 19:27:14,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 52 transitions, 291 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 19:27:14,402 INFO L231 Difference]: Finished difference. Result has 42 places, 28 transitions, 123 flow [2022-12-13 19:27:14,402 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=123, PETRI_PLACES=42, PETRI_TRANSITIONS=28} [2022-12-13 19:27:14,403 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, 1 predicate places. [2022-12-13 19:27:14,403 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 28 transitions, 123 flow [2022-12-13 19:27:14,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 100.66666666666667) internal successors, (604), 6 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:14,403 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:27:14,403 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:27:14,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 19:27:14,403 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 19:27:14,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:27:14,404 INFO L85 PathProgramCache]: Analyzing trace with hash -38910177, now seen corresponding path program 1 times [2022-12-13 19:27:14,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:27:14,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143465731] [2022-12-13 19:27:14,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:27:14,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:27:14,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:27:14,499 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 19:27:14,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:27:14,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143465731] [2022-12-13 19:27:14,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143465731] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:27:14,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:27:14,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 19:27:14,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337495874] [2022-12-13 19:27:14,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:27:14,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 19:27:14,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:27:14,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 19:27:14,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 19:27:14,514 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 248 [2022-12-13 19:27:14,515 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 28 transitions, 123 flow. Second operand has 4 states, 4 states have (on average 111.5) internal successors, (446), 4 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:14,515 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:27:14,515 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 248 [2022-12-13 19:27:14,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:27:14,750 INFO L130 PetriNetUnfolder]: 798/1379 cut-off events. [2022-12-13 19:27:14,750 INFO L131 PetriNetUnfolder]: For 566/580 co-relation queries the response was YES. [2022-12-13 19:27:14,752 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3350 conditions, 1379 events. 798/1379 cut-off events. For 566/580 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 7411 event pairs, 149 based on Foata normal form. 148/1490 useless extension candidates. Maximal degree in co-relation 3342. Up to 785 conditions per place. [2022-12-13 19:27:14,759 INFO L137 encePairwiseOnDemand]: 242/248 looper letters, 46 selfloop transitions, 7 changer transitions 9/69 dead transitions. [2022-12-13 19:27:14,759 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 69 transitions, 385 flow [2022-12-13 19:27:14,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 19:27:14,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 19:27:14,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 597 transitions. [2022-12-13 19:27:14,763 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4814516129032258 [2022-12-13 19:27:14,763 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 597 transitions. [2022-12-13 19:27:14,763 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 597 transitions. [2022-12-13 19:27:14,763 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:27:14,763 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 597 transitions. [2022-12-13 19:27:14,766 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 119.4) internal successors, (597), 5 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:14,769 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 248.0) internal successors, (1488), 6 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:14,769 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 248.0) internal successors, (1488), 6 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:14,769 INFO L175 Difference]: Start difference. First operand has 42 places, 28 transitions, 123 flow. Second operand 5 states and 597 transitions. [2022-12-13 19:27:14,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 69 transitions, 385 flow [2022-12-13 19:27:14,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 69 transitions, 377 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 19:27:14,773 INFO L231 Difference]: Finished difference. Result has 44 places, 34 transitions, 172 flow [2022-12-13 19:27:14,774 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=172, PETRI_PLACES=44, PETRI_TRANSITIONS=34} [2022-12-13 19:27:14,774 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, 3 predicate places. [2022-12-13 19:27:14,774 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 34 transitions, 172 flow [2022-12-13 19:27:14,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 111.5) internal successors, (446), 4 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:14,775 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:27:14,775 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:27:14,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 19:27:14,775 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 19:27:14,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:27:14,776 INFO L85 PathProgramCache]: Analyzing trace with hash -1868428092, now seen corresponding path program 1 times [2022-12-13 19:27:14,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:27:14,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110086734] [2022-12-13 19:27:14,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:27:14,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:27:14,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:27:14,904 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 19:27:14,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:27:14,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110086734] [2022-12-13 19:27:14,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110086734] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:27:14,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:27:14,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 19:27:14,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105502886] [2022-12-13 19:27:14,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:27:14,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 19:27:14,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:27:14,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 19:27:14,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:27:14,916 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 248 [2022-12-13 19:27:14,917 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 34 transitions, 172 flow. Second operand has 5 states, 5 states have (on average 111.6) internal successors, (558), 5 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:14,917 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:27:14,917 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 248 [2022-12-13 19:27:14,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:27:15,161 INFO L130 PetriNetUnfolder]: 582/1068 cut-off events. [2022-12-13 19:27:15,161 INFO L131 PetriNetUnfolder]: For 859/868 co-relation queries the response was YES. [2022-12-13 19:27:15,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3360 conditions, 1068 events. 582/1068 cut-off events. For 859/868 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 5798 event pairs, 74 based on Foata normal form. 84/1132 useless extension candidates. Maximal degree in co-relation 3349. Up to 354 conditions per place. [2022-12-13 19:27:15,165 INFO L137 encePairwiseOnDemand]: 242/248 looper letters, 57 selfloop transitions, 13 changer transitions 16/93 dead transitions. [2022-12-13 19:27:15,165 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 93 transitions, 580 flow [2022-12-13 19:27:15,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 19:27:15,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 19:27:15,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 835 transitions. [2022-12-13 19:27:15,167 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48099078341013823 [2022-12-13 19:27:15,167 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 835 transitions. [2022-12-13 19:27:15,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 835 transitions. [2022-12-13 19:27:15,168 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:27:15,168 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 835 transitions. [2022-12-13 19:27:15,170 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 119.28571428571429) internal successors, (835), 7 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:15,172 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 248.0) internal successors, (1984), 8 states have internal predecessors, (1984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:15,173 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 248.0) internal successors, (1984), 8 states have internal predecessors, (1984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:15,173 INFO L175 Difference]: Start difference. First operand has 44 places, 34 transitions, 172 flow. Second operand 7 states and 835 transitions. [2022-12-13 19:27:15,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 93 transitions, 580 flow [2022-12-13 19:27:15,176 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 93 transitions, 576 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 19:27:15,178 INFO L231 Difference]: Finished difference. Result has 52 places, 40 transitions, 256 flow [2022-12-13 19:27:15,178 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=256, PETRI_PLACES=52, PETRI_TRANSITIONS=40} [2022-12-13 19:27:15,178 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, 11 predicate places. [2022-12-13 19:27:15,179 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 40 transitions, 256 flow [2022-12-13 19:27:15,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 111.6) internal successors, (558), 5 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:15,179 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:27:15,179 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:27:15,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 19:27:15,179 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 19:27:15,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:27:15,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1220792142, now seen corresponding path program 1 times [2022-12-13 19:27:15,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:27:15,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161834001] [2022-12-13 19:27:15,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:27:15,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:27:15,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:27:15,307 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 19:27:15,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:27:15,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161834001] [2022-12-13 19:27:15,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161834001] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:27:15,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:27:15,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 19:27:15,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884266684] [2022-12-13 19:27:15,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:27:15,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 19:27:15,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:27:15,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 19:27:15,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 19:27:15,320 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 248 [2022-12-13 19:27:15,320 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 40 transitions, 256 flow. Second operand has 4 states, 4 states have (on average 108.25) internal successors, (433), 4 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:15,320 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:27:15,320 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 248 [2022-12-13 19:27:15,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:27:15,583 INFO L130 PetriNetUnfolder]: 942/1633 cut-off events. [2022-12-13 19:27:15,583 INFO L131 PetriNetUnfolder]: For 3861/3861 co-relation queries the response was YES. [2022-12-13 19:27:15,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6222 conditions, 1633 events. 942/1633 cut-off events. For 3861/3861 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 8633 event pairs, 94 based on Foata normal form. 9/1642 useless extension candidates. Maximal degree in co-relation 6208. Up to 735 conditions per place. [2022-12-13 19:27:15,588 INFO L137 encePairwiseOnDemand]: 240/248 looper letters, 69 selfloop transitions, 16 changer transitions 21/106 dead transitions. [2022-12-13 19:27:15,588 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 106 transitions, 890 flow [2022-12-13 19:27:15,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 19:27:15,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 19:27:15,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 586 transitions. [2022-12-13 19:27:15,590 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47258064516129034 [2022-12-13 19:27:15,590 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 586 transitions. [2022-12-13 19:27:15,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 586 transitions. [2022-12-13 19:27:15,590 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:27:15,590 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 586 transitions. [2022-12-13 19:27:15,591 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 117.2) internal successors, (586), 5 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:15,593 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 248.0) internal successors, (1488), 6 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:15,593 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 248.0) internal successors, (1488), 6 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:15,593 INFO L175 Difference]: Start difference. First operand has 52 places, 40 transitions, 256 flow. Second operand 5 states and 586 transitions. [2022-12-13 19:27:15,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 106 transitions, 890 flow [2022-12-13 19:27:15,611 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 106 transitions, 793 flow, removed 36 selfloop flow, removed 2 redundant places. [2022-12-13 19:27:15,612 INFO L231 Difference]: Finished difference. Result has 57 places, 43 transitions, 304 flow [2022-12-13 19:27:15,613 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=304, PETRI_PLACES=57, PETRI_TRANSITIONS=43} [2022-12-13 19:27:15,613 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, 16 predicate places. [2022-12-13 19:27:15,613 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 43 transitions, 304 flow [2022-12-13 19:27:15,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 108.25) internal successors, (433), 4 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:15,614 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:27:15,614 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:27:15,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 19:27:15,614 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 19:27:15,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:27:15,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1844962504, now seen corresponding path program 2 times [2022-12-13 19:27:15,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:27:15,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677855276] [2022-12-13 19:27:15,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:27:15,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:27:15,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:27:15,777 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 19:27:15,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:27:15,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677855276] [2022-12-13 19:27:15,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677855276] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:27:15,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:27:15,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 19:27:15,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833147446] [2022-12-13 19:27:15,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:27:15,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 19:27:15,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:27:15,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 19:27:15,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:27:15,791 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 248 [2022-12-13 19:27:15,791 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 43 transitions, 304 flow. Second operand has 5 states, 5 states have (on average 107.4) internal successors, (537), 5 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:15,791 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:27:15,792 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 248 [2022-12-13 19:27:15,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:27:16,036 INFO L130 PetriNetUnfolder]: 530/992 cut-off events. [2022-12-13 19:27:16,036 INFO L131 PetriNetUnfolder]: For 2215/2215 co-relation queries the response was YES. [2022-12-13 19:27:16,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4011 conditions, 992 events. 530/992 cut-off events. For 2215/2215 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 4927 event pairs, 71 based on Foata normal form. 8/1000 useless extension candidates. Maximal degree in co-relation 3993. Up to 354 conditions per place. [2022-12-13 19:27:16,040 INFO L137 encePairwiseOnDemand]: 240/248 looper letters, 68 selfloop transitions, 15 changer transitions 19/102 dead transitions. [2022-12-13 19:27:16,040 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 102 transitions, 827 flow [2022-12-13 19:27:16,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 19:27:16,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 19:27:16,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 700 transitions. [2022-12-13 19:27:16,043 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47043010752688175 [2022-12-13 19:27:16,043 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 700 transitions. [2022-12-13 19:27:16,043 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 700 transitions. [2022-12-13 19:27:16,044 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:27:16,044 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 700 transitions. [2022-12-13 19:27:16,045 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 116.66666666666667) internal successors, (700), 6 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:16,046 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 248.0) internal successors, (1736), 7 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:16,046 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 248.0) internal successors, (1736), 7 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:16,046 INFO L175 Difference]: Start difference. First operand has 57 places, 43 transitions, 304 flow. Second operand 6 states and 700 transitions. [2022-12-13 19:27:16,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 102 transitions, 827 flow [2022-12-13 19:27:16,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 102 transitions, 791 flow, removed 18 selfloop flow, removed 3 redundant places. [2022-12-13 19:27:16,051 INFO L231 Difference]: Finished difference. Result has 56 places, 40 transitions, 301 flow [2022-12-13 19:27:16,052 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=301, PETRI_PLACES=56, PETRI_TRANSITIONS=40} [2022-12-13 19:27:16,052 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, 15 predicate places. [2022-12-13 19:27:16,052 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 40 transitions, 301 flow [2022-12-13 19:27:16,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 107.4) internal successors, (537), 5 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:16,052 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:27:16,052 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:27:16,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 19:27:16,053 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 19:27:16,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:27:16,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1630869588, now seen corresponding path program 3 times [2022-12-13 19:27:16,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:27:16,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791491489] [2022-12-13 19:27:16,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:27:16,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:27:16,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:27:16,177 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 19:27:16,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:27:16,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791491489] [2022-12-13 19:27:16,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791491489] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:27:16,177 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:27:16,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 19:27:16,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317359979] [2022-12-13 19:27:16,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:27:16,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 19:27:16,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:27:16,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 19:27:16,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-13 19:27:16,188 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 248 [2022-12-13 19:27:16,189 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 40 transitions, 301 flow. Second operand has 6 states, 6 states have (on average 111.5) internal successors, (669), 6 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 19:27:16,189 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:27:16,189 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 248 [2022-12-13 19:27:16,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:27:16,347 INFO L130 PetriNetUnfolder]: 292/594 cut-off events. [2022-12-13 19:27:16,347 INFO L131 PetriNetUnfolder]: For 1387/1391 co-relation queries the response was YES. [2022-12-13 19:27:16,349 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2288 conditions, 594 events. 292/594 cut-off events. For 1387/1391 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2873 event pairs, 72 based on Foata normal form. 32/619 useless extension candidates. Maximal degree in co-relation 2271. Up to 210 conditions per place. [2022-12-13 19:27:16,350 INFO L137 encePairwiseOnDemand]: 242/248 looper letters, 32 selfloop transitions, 10 changer transitions 29/79 dead transitions. [2022-12-13 19:27:16,350 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 79 transitions, 673 flow [2022-12-13 19:27:16,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 19:27:16,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 19:27:16,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 817 transitions. [2022-12-13 19:27:16,353 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4706221198156682 [2022-12-13 19:27:16,353 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 817 transitions. [2022-12-13 19:27:16,353 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 817 transitions. [2022-12-13 19:27:16,354 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:27:16,354 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 817 transitions. [2022-12-13 19:27:16,356 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 116.71428571428571) internal successors, (817), 7 states have internal predecessors, (817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:16,358 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 248.0) internal successors, (1984), 8 states have internal predecessors, (1984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:16,358 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 248.0) internal successors, (1984), 8 states have internal predecessors, (1984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:16,359 INFO L175 Difference]: Start difference. First operand has 56 places, 40 transitions, 301 flow. Second operand 7 states and 817 transitions. [2022-12-13 19:27:16,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 79 transitions, 673 flow [2022-12-13 19:27:16,362 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 79 transitions, 583 flow, removed 8 selfloop flow, removed 7 redundant places. [2022-12-13 19:27:16,363 INFO L231 Difference]: Finished difference. Result has 58 places, 34 transitions, 231 flow [2022-12-13 19:27:16,364 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=249, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=231, PETRI_PLACES=58, PETRI_TRANSITIONS=34} [2022-12-13 19:27:16,364 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, 17 predicate places. [2022-12-13 19:27:16,364 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 34 transitions, 231 flow [2022-12-13 19:27:16,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 111.5) internal successors, (669), 6 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 19:27:16,365 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:27:16,365 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:27:16,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 19:27:16,365 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 19:27:16,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:27:16,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1036513632, now seen corresponding path program 1 times [2022-12-13 19:27:16,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:27:16,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643893755] [2022-12-13 19:27:16,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:27:16,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:27:16,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:27:16,523 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 19:27:16,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:27:16,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643893755] [2022-12-13 19:27:16,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643893755] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:27:16,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:27:16,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 19:27:16,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732984026] [2022-12-13 19:27:16,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:27:16,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 19:27:16,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:27:16,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 19:27:16,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 19:27:16,537 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 248 [2022-12-13 19:27:16,537 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 34 transitions, 231 flow. Second operand has 4 states, 4 states have (on average 111.25) internal successors, (445), 4 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:16,537 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:27:16,537 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 248 [2022-12-13 19:27:16,537 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:27:16,650 INFO L130 PetriNetUnfolder]: 252/496 cut-off events. [2022-12-13 19:27:16,650 INFO L131 PetriNetUnfolder]: For 1151/1151 co-relation queries the response was YES. [2022-12-13 19:27:16,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1913 conditions, 496 events. 252/496 cut-off events. For 1151/1151 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2146 event pairs, 93 based on Foata normal form. 1/497 useless extension candidates. Maximal degree in co-relation 1896. Up to 260 conditions per place. [2022-12-13 19:27:16,652 INFO L137 encePairwiseOnDemand]: 244/248 looper letters, 28 selfloop transitions, 3 changer transitions 24/55 dead transitions. [2022-12-13 19:27:16,652 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 55 transitions, 473 flow [2022-12-13 19:27:16,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 19:27:16,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 19:27:16,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 463 transitions. [2022-12-13 19:27:16,655 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46673387096774194 [2022-12-13 19:27:16,655 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 463 transitions. [2022-12-13 19:27:16,655 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 463 transitions. [2022-12-13 19:27:16,655 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:27:16,655 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 463 transitions. [2022-12-13 19:27:16,656 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 115.75) internal successors, (463), 4 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:16,657 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 248.0) internal successors, (1240), 5 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:16,657 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 248.0) internal successors, (1240), 5 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:16,657 INFO L175 Difference]: Start difference. First operand has 58 places, 34 transitions, 231 flow. Second operand 4 states and 463 transitions. [2022-12-13 19:27:16,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 55 transitions, 473 flow [2022-12-13 19:27:16,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 55 transitions, 390 flow, removed 21 selfloop flow, removed 9 redundant places. [2022-12-13 19:27:16,661 INFO L231 Difference]: Finished difference. Result has 50 places, 27 transitions, 136 flow [2022-12-13 19:27:16,661 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=136, PETRI_PLACES=50, PETRI_TRANSITIONS=27} [2022-12-13 19:27:16,661 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, 9 predicate places. [2022-12-13 19:27:16,661 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 27 transitions, 136 flow [2022-12-13 19:27:16,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 111.25) internal successors, (445), 4 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:16,662 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:27:16,662 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:27:16,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 19:27:16,662 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 19:27:16,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:27:16,662 INFO L85 PathProgramCache]: Analyzing trace with hash -206951118, now seen corresponding path program 2 times [2022-12-13 19:27:16,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:27:16,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910301650] [2022-12-13 19:27:16,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:27:16,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:27:16,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:27:17,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:27:17,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:27:17,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910301650] [2022-12-13 19:27:17,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910301650] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:27:17,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:27:17,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 19:27:17,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308906958] [2022-12-13 19:27:17,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:27:17,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 19:27:17,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:27:17,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 19:27:17,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 19:27:17,047 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 248 [2022-12-13 19:27:17,048 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 27 transitions, 136 flow. Second operand has 6 states, 6 states have (on average 111.0) internal successors, (666), 6 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:17,048 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:27:17,048 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 248 [2022-12-13 19:27:17,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:27:17,174 INFO L130 PetriNetUnfolder]: 65/154 cut-off events. [2022-12-13 19:27:17,174 INFO L131 PetriNetUnfolder]: For 167/167 co-relation queries the response was YES. [2022-12-13 19:27:17,175 INFO L83 FinitePrefix]: Finished finitePrefix Result has 514 conditions, 154 events. 65/154 cut-off events. For 167/167 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 508 event pairs, 3 based on Foata normal form. 1/150 useless extension candidates. Maximal degree in co-relation 502. Up to 67 conditions per place. [2022-12-13 19:27:17,176 INFO L137 encePairwiseOnDemand]: 242/248 looper letters, 34 selfloop transitions, 5 changer transitions 17/59 dead transitions. [2022-12-13 19:27:17,176 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 59 transitions, 407 flow [2022-12-13 19:27:17,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 19:27:17,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 19:27:17,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 797 transitions. [2022-12-13 19:27:17,178 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45910138248847926 [2022-12-13 19:27:17,178 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 797 transitions. [2022-12-13 19:27:17,178 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 797 transitions. [2022-12-13 19:27:17,179 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:27:17,179 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 797 transitions. [2022-12-13 19:27:17,180 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 113.85714285714286) internal successors, (797), 7 states have internal predecessors, (797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:17,183 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 248.0) internal successors, (1984), 8 states have internal predecessors, (1984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:17,183 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 248.0) internal successors, (1984), 8 states have internal predecessors, (1984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:17,183 INFO L175 Difference]: Start difference. First operand has 50 places, 27 transitions, 136 flow. Second operand 7 states and 797 transitions. [2022-12-13 19:27:17,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 59 transitions, 407 flow [2022-12-13 19:27:17,185 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 59 transitions, 383 flow, removed 3 selfloop flow, removed 7 redundant places. [2022-12-13 19:27:17,186 INFO L231 Difference]: Finished difference. Result has 50 places, 29 transitions, 141 flow [2022-12-13 19:27:17,186 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=141, PETRI_PLACES=50, PETRI_TRANSITIONS=29} [2022-12-13 19:27:17,186 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, 9 predicate places. [2022-12-13 19:27:17,186 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 29 transitions, 141 flow [2022-12-13 19:27:17,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 111.0) internal successors, (666), 6 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:17,187 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:27:17,187 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:27:17,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 19:27:17,187 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 19:27:17,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:27:17,188 INFO L85 PathProgramCache]: Analyzing trace with hash 774868928, now seen corresponding path program 3 times [2022-12-13 19:27:17,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:27:17,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236106375] [2022-12-13 19:27:17,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:27:17,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:27:17,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:27:17,227 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 19:27:17,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:27:17,286 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 19:27:17,287 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 19:27:17,288 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (12 of 13 remaining) [2022-12-13 19:27:17,289 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (11 of 13 remaining) [2022-12-13 19:27:17,289 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 13 remaining) [2022-12-13 19:27:17,289 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 13 remaining) [2022-12-13 19:27:17,290 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 13 remaining) [2022-12-13 19:27:17,290 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 13 remaining) [2022-12-13 19:27:17,290 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 13 remaining) [2022-12-13 19:27:17,290 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 13 remaining) [2022-12-13 19:27:17,290 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (4 of 13 remaining) [2022-12-13 19:27:17,290 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 13 remaining) [2022-12-13 19:27:17,290 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 13 remaining) [2022-12-13 19:27:17,290 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 13 remaining) [2022-12-13 19:27:17,290 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 13 remaining) [2022-12-13 19:27:17,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 19:27:17,290 INFO L445 BasicCegarLoop]: Path program histogram: [3, 3, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:27:17,295 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 19:27:17,295 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 19:27:17,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 07:27:17 BasicIcfg [2022-12-13 19:27:17,331 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 19:27:17,331 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 19:27:17,331 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 19:27:17,331 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 19:27:17,331 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:27:08" (3/4) ... [2022-12-13 19:27:17,334 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 19:27:17,334 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 19:27:17,334 INFO L158 Benchmark]: Toolchain (without parser) took 9904.49ms. Allocated memory was 165.7MB in the beginning and 287.3MB in the end (delta: 121.6MB). Free memory was 122.8MB in the beginning and 224.6MB in the end (delta: -101.8MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. [2022-12-13 19:27:17,334 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 119.5MB. Free memory was 92.5MB in the beginning and 92.5MB in the end (delta: 24.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 19:27:17,334 INFO L158 Benchmark]: CACSL2BoogieTranslator took 422.78ms. Allocated memory is still 165.7MB. Free memory was 122.8MB in the beginning and 96.3MB in the end (delta: 26.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-12-13 19:27:17,335 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.20ms. Allocated memory is still 165.7MB. Free memory was 96.3MB in the beginning and 94.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 19:27:17,335 INFO L158 Benchmark]: Boogie Preprocessor took 34.99ms. Allocated memory is still 165.7MB. Free memory was 94.2MB in the beginning and 92.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 19:27:17,335 INFO L158 Benchmark]: RCFGBuilder took 517.92ms. Allocated memory is still 165.7MB. Free memory was 92.1MB in the beginning and 120.0MB in the end (delta: -27.8MB). Peak memory consumption was 25.7MB. Max. memory is 16.1GB. [2022-12-13 19:27:17,335 INFO L158 Benchmark]: TraceAbstraction took 8869.73ms. Allocated memory was 165.7MB in the beginning and 287.3MB in the end (delta: 121.6MB). Free memory was 119.0MB in the beginning and 225.7MB in the end (delta: -106.7MB). Peak memory consumption was 173.1MB. Max. memory is 16.1GB. [2022-12-13 19:27:17,335 INFO L158 Benchmark]: Witness Printer took 2.63ms. Allocated memory is still 287.3MB. Free memory was 225.7MB in the beginning and 224.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 19:27:17,336 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 119.5MB. Free memory was 92.5MB in the beginning and 92.5MB in the end (delta: 24.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 422.78ms. Allocated memory is still 165.7MB. Free memory was 122.8MB in the beginning and 96.3MB in the end (delta: 26.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.20ms. Allocated memory is still 165.7MB. Free memory was 96.3MB in the beginning and 94.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.99ms. Allocated memory is still 165.7MB. Free memory was 94.2MB in the beginning and 92.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 517.92ms. Allocated memory is still 165.7MB. Free memory was 92.1MB in the beginning and 120.0MB in the end (delta: -27.8MB). Peak memory consumption was 25.7MB. Max. memory is 16.1GB. * TraceAbstraction took 8869.73ms. Allocated memory was 165.7MB in the beginning and 287.3MB in the end (delta: 121.6MB). Free memory was 119.0MB in the beginning and 225.7MB in the end (delta: -106.7MB). Peak memory consumption was 173.1MB. Max. memory is 16.1GB. * Witness Printer took 2.63ms. Allocated memory is still 287.3MB. Free memory was 225.7MB in the beginning and 224.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.0s, 131 PlacesBefore, 41 PlacesAfterwards, 123 TransitionsBefore, 32 TransitionsAfterwards, 2264 CoEnabledTransitionPairs, 7 FixpointIterations, 53 TrivialSequentialCompositions, 61 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 122 TotalNumberOfCompositions, 6053 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3045, independent: 2860, independent conditional: 0, independent unconditional: 2860, dependent: 185, dependent conditional: 0, dependent unconditional: 185, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1288, independent: 1248, independent conditional: 0, independent unconditional: 1248, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3045, independent: 1612, independent conditional: 0, independent unconditional: 1612, dependent: 145, dependent conditional: 0, dependent unconditional: 145, unknown: 1288, unknown conditional: 0, unknown unconditional: 1288] , Statistics on independence cache: Total cache size (in pairs): 103, Positive cache size: 89, Positive conditional cache size: 0, Positive unconditional cache size: 89, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - UnprovableResult [Line: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 19. Possible FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p0_EAX = 0; [L714] 0 int __unbuffered_p2_EAX = 0; [L716] 0 int __unbuffered_p2_EBX = 0; [L717] 0 _Bool main$tmp_guard0; [L718] 0 _Bool main$tmp_guard1; [L720] 0 int x = 0; [L721] 0 _Bool x$flush_delayed; [L722] 0 int x$mem_tmp; [L723] 0 _Bool x$r_buff0_thd0; [L724] 0 _Bool x$r_buff0_thd1; [L725] 0 _Bool x$r_buff0_thd2; [L726] 0 _Bool x$r_buff0_thd3; [L727] 0 _Bool x$r_buff1_thd0; [L728] 0 _Bool x$r_buff1_thd1; [L729] 0 _Bool x$r_buff1_thd2; [L730] 0 _Bool x$r_buff1_thd3; [L731] 0 _Bool x$read_delayed; [L732] 0 int *x$read_delayed_var; [L733] 0 int x$w_buff0; [L734] 0 _Bool x$w_buff0_used; [L735] 0 int x$w_buff1; [L736] 0 _Bool x$w_buff1_used; [L738] 0 int y = 0; [L740] 0 int z = 0; [L741] 0 _Bool weak$$choice0; [L742] 0 _Bool weak$$choice2; [L834] 0 pthread_t t666; [L835] FCALL, FORK 0 pthread_create(&t666, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t666, ((void *)0), P0, ((void *)0))=-3, t666={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L836] 0 pthread_t t667; [L837] FCALL, FORK 0 pthread_create(&t667, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t667, ((void *)0), P1, ((void *)0))=-2, t666={5:0}, t667={6:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L838] 0 pthread_t t668; [L839] FCALL, FORK 0 pthread_create(&t668, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t668, ((void *)0), P2, ((void *)0))=-1, t666={5:0}, t667={6:0}, t668={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L774] 2 x$w_buff1 = x$w_buff0 [L775] 2 x$w_buff0 = 1 [L776] 2 x$w_buff1_used = x$w_buff0_used [L777] 2 x$w_buff0_used = (_Bool)1 [L778] CALL 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L19] COND FALSE 2 !(!expression) [L778] RET 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L779] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L780] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L781] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L782] 2 x$r_buff1_thd3 = x$r_buff0_thd3 [L783] 2 x$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L786] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=0] [L803] 3 y = 2 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2, z=0] [L806] 3 __unbuffered_p2_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2, z=0] [L809] 3 __unbuffered_p2_EBX = z VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2, z=0] [L746] 1 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2, z=1] [L749] 1 weak$$choice0 = __VERIFIER_nondet_bool() [L750] 1 weak$$choice2 = __VERIFIER_nondet_bool() [L751] 1 x$flush_delayed = weak$$choice2 [L752] 1 x$mem_tmp = x [L753] 1 x = !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff1) [L754] 1 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff0)) [L755] 1 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff1 : x$w_buff1)) [L756] 1 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used)) [L757] 1 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L758] 1 x$r_buff0_thd1 = weak$$choice2 ? x$r_buff0_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff0_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1)) [L759] 1 x$r_buff1_thd1 = weak$$choice2 ? x$r_buff1_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff1_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L760] 1 __unbuffered_p0_EAX = x [L761] 1 x = x$flush_delayed ? x$mem_tmp : x [L762] 1 x$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2, z=1] [L789] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L790] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L791] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L792] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L793] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=2, z=1] [L796] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L798] 2 return 0; [L767] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L769] 1 return 0; [L812] 3 x = x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x) [L813] 3 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$w_buff0_used [L814] 3 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$w_buff1_used [L815] 3 x$r_buff0_thd3 = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$r_buff0_thd3 [L816] 3 x$r_buff1_thd3 = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$r_buff1_thd3 VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=2, z=1] [L819] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L821] 3 return 0; [L841] 0 main$tmp_guard0 = __unbuffered_cnt == 3 [L843] CALL 0 assume_abort_if_not(main$tmp_guard0) [L4] COND FALSE 0 !(!cond) [L843] RET 0 assume_abort_if_not(main$tmp_guard0) [L845] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L846] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L847] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L848] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L849] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t666={5:0}, t667={6:0}, t668={3:0}, weak$$choice0=49, weak$$choice2=255, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=2, z=1] [L852] 0 main$tmp_guard1 = !(y == 2 && __unbuffered_p0_EAX == 0 && __unbuffered_p2_EAX == 2 && __unbuffered_p2_EBX == 0) [L854] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L19] COND TRUE 0 !expression [L19] 0 reach_error() VAL [\old(expression)=1, \old(expression)=0, \result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=1, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=2, z=1] - UnprovableResult [Line: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 832]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 839]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 837]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 835]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 153 locations, 13 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 8.8s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 544 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 450 mSDsluCounter, 91 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 52 mSDsCounter, 72 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1175 IncrementalHoareTripleChecker+Invalid, 1247 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 72 mSolverCounterUnsat, 39 mSDtfsCounter, 1175 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=304occurred in iteration=8, InterpolantAutomatonStates: 59, 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, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 174 NumberOfCodeBlocks, 174 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 141 ConstructedInterpolants, 0 QuantifiedInterpolants, 1006 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 19:27:17,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/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_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix025_pso.opt_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/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 3bbcbfea07b4de27a61735028fd08097276598be4815bd7ea5f14ba44ebf2380 --- 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 19:27:19,204 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 19:27:19,206 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 19:27:19,226 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 19:27:19,226 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 19:27:19,227 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 19:27:19,229 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 19:27:19,230 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 19:27:19,232 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 19:27:19,233 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 19:27:19,234 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 19:27:19,235 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 19:27:19,235 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 19:27:19,236 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 19:27:19,237 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 19:27:19,238 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 19:27:19,239 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 19:27:19,240 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 19:27:19,241 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 19:27:19,243 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 19:27:19,244 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 19:27:19,245 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 19:27:19,246 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 19:27:19,247 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 19:27:19,249 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 19:27:19,249 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 19:27:19,249 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 19:27:19,249 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 19:27:19,250 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 19:27:19,250 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 19:27:19,250 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 19:27:19,251 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 19:27:19,252 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 19:27:19,252 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 19:27:19,253 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 19:27:19,253 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 19:27:19,253 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 19:27:19,253 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 19:27:19,253 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 19:27:19,254 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 19:27:19,254 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 19:27:19,255 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-12-13 19:27:19,276 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 19:27:19,276 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 19:27:19,276 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 19:27:19,277 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 19:27:19,277 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 19:27:19,277 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 19:27:19,278 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 19:27:19,278 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 19:27:19,278 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 19:27:19,278 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 19:27:19,278 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 19:27:19,278 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 19:27:19,278 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 19:27:19,278 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 19:27:19,278 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 19:27:19,278 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 19:27:19,279 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 19:27:19,279 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 19:27:19,279 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 19:27:19,279 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 19:27:19,279 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 19:27:19,279 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 19:27:19,279 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 19:27:19,279 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 19:27:19,279 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 19:27:19,279 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 19:27:19,279 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 19:27:19,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:27:19,280 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 19:27:19,280 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 19:27:19,280 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 19:27:19,280 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 19:27:19,280 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 19:27:19,280 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 19:27:19,280 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 19:27:19,280 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 19:27:19,280 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 19:27:19,281 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_409688f1-e05b-44ac-988a-4caa7f7d7d55/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_409688f1-e05b-44ac-988a-4caa7f7d7d55/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 -> 3bbcbfea07b4de27a61735028fd08097276598be4815bd7ea5f14ba44ebf2380 [2022-12-13 19:27:19,498 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 19:27:19,513 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 19:27:19,515 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 19:27:19,515 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 19:27:19,516 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 19:27:19,517 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-wmm/mix025_pso.opt_rmo.opt.i [2022-12-13 19:27:22,075 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 19:27:22,266 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 19:27:22,267 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/sv-benchmarks/c/pthread-wmm/mix025_pso.opt_rmo.opt.i [2022-12-13 19:27:22,277 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/data/8191b1d24/a196811f00624a41ba9c8cb638b4878c/FLAGe59dbb694 [2022-12-13 19:27:22,635 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/data/8191b1d24/a196811f00624a41ba9c8cb638b4878c [2022-12-13 19:27:22,637 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 19:27:22,638 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 19:27:22,638 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 19:27:22,638 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 19:27:22,641 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 19:27:22,642 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:27:22" (1/1) ... [2022-12-13 19:27:22,642 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14708140 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:27:22, skipping insertion in model container [2022-12-13 19:27:22,643 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:27:22" (1/1) ... [2022-12-13 19:27:22,648 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 19:27:22,675 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 19:27:22,784 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_409688f1-e05b-44ac-988a-4caa7f7d7d55/sv-benchmarks/c/pthread-wmm/mix025_pso.opt_rmo.opt.i[999,1012] [2022-12-13 19:27:22,910 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:22,910 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:22,911 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:22,916 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:22,916 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:22,916 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:22,917 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:22,917 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:22,918 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:22,919 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:22,919 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:22,919 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:22,920 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:22,921 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:22,921 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:22,922 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:22,922 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:22,922 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:22,922 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:22,923 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:22,923 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:22,923 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:22,923 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:22,925 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:22,925 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:22,925 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:22,931 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:22,932 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:22,932 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:22,934 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:22,935 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:22,935 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:22,936 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:27:22,946 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 19:27:22,956 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_409688f1-e05b-44ac-988a-4caa7f7d7d55/sv-benchmarks/c/pthread-wmm/mix025_pso.opt_rmo.opt.i[999,1012] [2022-12-13 19:27:22,976 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:22,976 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:22,976 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:22,982 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:22,982 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:22,982 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:22,983 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:22,983 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:22,984 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:22,985 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:22,985 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:22,999 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:22,999 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:23,002 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:23,002 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:23,003 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:23,003 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:23,003 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:23,003 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:23,004 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:23,004 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:23,004 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:23,004 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:23,006 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:23,006 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:23,006 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:23,009 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:23,010 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:23,010 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:23,012 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:23,012 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:27:23,013 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:27:23,014 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:27:23,045 INFO L208 MainTranslator]: Completed translation [2022-12-13 19:27:23,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:27:23 WrapperNode [2022-12-13 19:27:23,046 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 19:27:23,047 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 19:27:23,047 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 19:27:23,047 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 19:27:23,052 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:27:23" (1/1) ... [2022-12-13 19:27:23,064 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:27:23" (1/1) ... [2022-12-13 19:27:23,082 INFO L138 Inliner]: procedures = 179, calls = 56, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 130 [2022-12-13 19:27:23,082 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 19:27:23,083 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 19:27:23,083 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 19:27:23,083 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 19:27:23,090 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:27:23" (1/1) ... [2022-12-13 19:27:23,090 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:27:23" (1/1) ... [2022-12-13 19:27:23,093 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:27:23" (1/1) ... [2022-12-13 19:27:23,093 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:27:23" (1/1) ... [2022-12-13 19:27:23,101 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:27:23" (1/1) ... [2022-12-13 19:27:23,103 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:27:23" (1/1) ... [2022-12-13 19:27:23,104 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:27:23" (1/1) ... [2022-12-13 19:27:23,106 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:27:23" (1/1) ... [2022-12-13 19:27:23,108 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 19:27:23,109 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 19:27:23,109 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 19:27:23,109 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 19:27:23,110 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:27:23" (1/1) ... [2022-12-13 19:27:23,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:27:23,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:27:23,136 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 19:27:23,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 19:27:23,167 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 19:27:23,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 19:27:23,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 19:27:23,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 19:27:23,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-13 19:27:23,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 19:27:23,167 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 19:27:23,167 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 19:27:23,167 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 19:27:23,167 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 19:27:23,168 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-13 19:27:23,168 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-13 19:27:23,168 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 19:27:23,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 19:27:23,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 19:27:23,169 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 19:27:23,281 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 19:27:23,283 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 19:27:23,582 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 19:27:23,740 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 19:27:23,740 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 19:27:23,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:27:23 BoogieIcfgContainer [2022-12-13 19:27:23,742 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 19:27:23,745 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 19:27:23,745 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 19:27:23,748 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 19:27:23,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 07:27:22" (1/3) ... [2022-12-13 19:27:23,749 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49a97fd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:27:23, skipping insertion in model container [2022-12-13 19:27:23,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:27:23" (2/3) ... [2022-12-13 19:27:23,750 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49a97fd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:27:23, skipping insertion in model container [2022-12-13 19:27:23,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:27:23" (3/3) ... [2022-12-13 19:27:23,751 INFO L112 eAbstractionObserver]: Analyzing ICFG mix025_pso.opt_rmo.opt.i [2022-12-13 19:27:23,770 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 19:27:23,770 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2022-12-13 19:27:23,770 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 19:27:23,830 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 19:27:23,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 135 places, 127 transitions, 269 flow [2022-12-13 19:27:23,919 INFO L130 PetriNetUnfolder]: 2/124 cut-off events. [2022-12-13 19:27:23,919 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 19:27:23,925 INFO L83 FinitePrefix]: Finished finitePrefix Result has 134 conditions, 124 events. 2/124 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 76 event pairs, 0 based on Foata normal form. 0/113 useless extension candidates. Maximal degree in co-relation 80. Up to 2 conditions per place. [2022-12-13 19:27:23,925 INFO L82 GeneralOperation]: Start removeDead. Operand has 135 places, 127 transitions, 269 flow [2022-12-13 19:27:23,930 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 132 places, 124 transitions, 257 flow [2022-12-13 19:27:23,933 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 19:27:23,943 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 132 places, 124 transitions, 257 flow [2022-12-13 19:27:23,946 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 132 places, 124 transitions, 257 flow [2022-12-13 19:27:23,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 132 places, 124 transitions, 257 flow [2022-12-13 19:27:23,973 INFO L130 PetriNetUnfolder]: 2/124 cut-off events. [2022-12-13 19:27:23,973 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 19:27:23,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 134 conditions, 124 events. 2/124 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 76 event pairs, 0 based on Foata normal form. 0/113 useless extension candidates. Maximal degree in co-relation 80. Up to 2 conditions per place. [2022-12-13 19:27:23,975 INFO L119 LiptonReduction]: Number of co-enabled transitions 2264 [2022-12-13 19:27:29,865 INFO L134 LiptonReduction]: Checked pairs total: 6102 [2022-12-13 19:27:29,865 INFO L136 LiptonReduction]: Total number of compositions: 117 [2022-12-13 19:27:29,879 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 19:27:29,885 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;@48ae89a7, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 19:27:29,885 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-12-13 19:27:29,886 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 19:27:29,886 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 19:27:29,886 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:27:29,887 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 19:27:29,887 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 19:27:29,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:27:29,891 INFO L85 PathProgramCache]: Analyzing trace with hash 529, now seen corresponding path program 1 times [2022-12-13 19:27:29,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:27:29,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [488889226] [2022-12-13 19:27:29,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:27:29,900 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:27:29,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:27:29,901 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 19:27:29,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-13 19:27:29,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:27:29,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 19:27:29,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:27:29,961 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 19:27:29,961 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:27:29,961 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:27:29,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [488889226] [2022-12-13 19:27:29,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [488889226] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:27:29,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:27:29,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 19:27:29,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600617234] [2022-12-13 19:27:29,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:27:29,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 19:27:29,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:27:29,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 19:27:29,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 19:27:29,985 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 244 [2022-12-13 19:27:29,987 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 32 transitions, 73 flow. Second operand has 2 states, 2 states have (on average 115.5) internal successors, (231), 2 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:29,987 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:27:29,987 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 244 [2022-12-13 19:27:29,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:27:30,293 INFO L130 PetriNetUnfolder]: 1277/1924 cut-off events. [2022-12-13 19:27:30,293 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2022-12-13 19:27:30,297 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3865 conditions, 1924 events. 1277/1924 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 9102 event pairs, 1277 based on Foata normal form. 0/1599 useless extension candidates. Maximal degree in co-relation 3854. Up to 1887 conditions per place. [2022-12-13 19:27:30,303 INFO L137 encePairwiseOnDemand]: 237/244 looper letters, 22 selfloop transitions, 0 changer transitions 0/25 dead transitions. [2022-12-13 19:27:30,303 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 25 transitions, 103 flow [2022-12-13 19:27:30,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 19:27:30,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 19:27:30,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 259 transitions. [2022-12-13 19:27:30,313 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5307377049180327 [2022-12-13 19:27:30,314 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 259 transitions. [2022-12-13 19:27:30,314 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 259 transitions. [2022-12-13 19:27:30,315 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:27:30,317 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 259 transitions. [2022-12-13 19:27:30,319 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 129.5) internal successors, (259), 2 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:30,322 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 244.0) internal successors, (732), 3 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:30,323 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 244.0) internal successors, (732), 3 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:30,324 INFO L175 Difference]: Start difference. First operand has 41 places, 32 transitions, 73 flow. Second operand 2 states and 259 transitions. [2022-12-13 19:27:30,325 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 25 transitions, 103 flow [2022-12-13 19:27:30,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 25 transitions, 100 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 19:27:30,327 INFO L231 Difference]: Finished difference. Result has 33 places, 25 transitions, 56 flow [2022-12-13 19:27:30,329 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=56, PETRI_PLACES=33, PETRI_TRANSITIONS=25} [2022-12-13 19:27:30,331 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, -8 predicate places. [2022-12-13 19:27:30,332 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 25 transitions, 56 flow [2022-12-13 19:27:30,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 115.5) internal successors, (231), 2 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:30,332 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:27:30,332 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 19:27:30,343 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-13 19:27:30,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:27:30,533 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 19:27:30,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:27:30,534 INFO L85 PathProgramCache]: Analyzing trace with hash 501225696, now seen corresponding path program 1 times [2022-12-13 19:27:30,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:27:30,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [148265413] [2022-12-13 19:27:30,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:27:30,535 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:27:30,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:27:30,536 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 19:27:30,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-13 19:27:30,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:27:30,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 19:27:30,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:27:30,700 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 19:27:30,700 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:27:30,700 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:27:30,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [148265413] [2022-12-13 19:27:30,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [148265413] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:27:30,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:27:30,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 19:27:30,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472415665] [2022-12-13 19:27:30,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:27:30,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 19:27:30,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:27:30,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 19:27:30,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:27:30,708 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 244 [2022-12-13 19:27:30,709 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 25 transitions, 56 flow. Second operand has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:30,709 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:27:30,709 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 244 [2022-12-13 19:27:30,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:27:30,974 INFO L130 PetriNetUnfolder]: 999/1616 cut-off events. [2022-12-13 19:27:30,975 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 19:27:30,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3149 conditions, 1616 events. 999/1616 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 8417 event pairs, 165 based on Foata normal form. 0/1476 useless extension candidates. Maximal degree in co-relation 3146. Up to 1195 conditions per place. [2022-12-13 19:27:30,980 INFO L137 encePairwiseOnDemand]: 241/244 looper letters, 31 selfloop transitions, 2 changer transitions 2/38 dead transitions. [2022-12-13 19:27:30,980 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 38 transitions, 154 flow [2022-12-13 19:27:30,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 19:27:30,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 19:27:30,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 378 transitions. [2022-12-13 19:27:30,983 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5163934426229508 [2022-12-13 19:27:30,983 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 378 transitions. [2022-12-13 19:27:30,983 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 378 transitions. [2022-12-13 19:27:30,983 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:27:30,983 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 378 transitions. [2022-12-13 19:27:30,984 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 126.0) internal successors, (378), 3 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:30,986 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 244.0) internal successors, (976), 4 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:30,986 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 244.0) internal successors, (976), 4 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:30,986 INFO L175 Difference]: Start difference. First operand has 33 places, 25 transitions, 56 flow. Second operand 3 states and 378 transitions. [2022-12-13 19:27:30,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 38 transitions, 154 flow [2022-12-13 19:27:30,986 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 38 transitions, 154 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 19:27:30,987 INFO L231 Difference]: Finished difference. Result has 34 places, 23 transitions, 56 flow [2022-12-13 19:27:30,987 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=56, PETRI_PLACES=34, PETRI_TRANSITIONS=23} [2022-12-13 19:27:30,987 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, -7 predicate places. [2022-12-13 19:27:30,988 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 23 transitions, 56 flow [2022-12-13 19:27:30,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:30,988 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:27:30,988 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:27:30,999 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-13 19:27:31,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:27:31,189 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 19:27:31,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:27:31,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1874849653, now seen corresponding path program 1 times [2022-12-13 19:27:31,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:27:31,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [168756464] [2022-12-13 19:27:31,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:27:31,190 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:27:31,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:27:31,191 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 19:27:31,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-12-13 19:27:31,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:27:31,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 19:27:31,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:27:31,292 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 19:27:31,293 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:27:31,293 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:27:31,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [168756464] [2022-12-13 19:27:31,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [168756464] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:27:31,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:27:31,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 19:27:31,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175296643] [2022-12-13 19:27:31,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:27:31,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 19:27:31,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:27:31,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 19:27:31,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 19:27:31,308 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 244 [2022-12-13 19:27:31,308 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 23 transitions, 56 flow. Second operand has 4 states, 4 states have (on average 112.25) internal successors, (449), 4 states have internal predecessors, (449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:31,308 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:27:31,308 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 244 [2022-12-13 19:27:31,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:27:31,561 INFO L130 PetriNetUnfolder]: 557/935 cut-off events. [2022-12-13 19:27:31,561 INFO L131 PetriNetUnfolder]: For 73/73 co-relation queries the response was YES. [2022-12-13 19:27:31,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1968 conditions, 935 events. 557/935 cut-off events. For 73/73 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 4406 event pairs, 113 based on Foata normal form. 64/953 useless extension candidates. Maximal degree in co-relation 1964. Up to 633 conditions per place. [2022-12-13 19:27:31,566 INFO L137 encePairwiseOnDemand]: 238/244 looper letters, 29 selfloop transitions, 4 changer transitions 19/55 dead transitions. [2022-12-13 19:27:31,566 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 55 transitions, 234 flow [2022-12-13 19:27:31,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 19:27:31,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 19:27:31,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 604 transitions. [2022-12-13 19:27:31,569 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49508196721311476 [2022-12-13 19:27:31,569 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 604 transitions. [2022-12-13 19:27:31,569 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 604 transitions. [2022-12-13 19:27:31,570 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:27:31,570 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 604 transitions. [2022-12-13 19:27:31,571 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 120.8) internal successors, (604), 5 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:31,575 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 244.0) internal successors, (1464), 6 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:31,576 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 244.0) internal successors, (1464), 6 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:31,576 INFO L175 Difference]: Start difference. First operand has 34 places, 23 transitions, 56 flow. Second operand 5 states and 604 transitions. [2022-12-13 19:27:31,576 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 55 transitions, 234 flow [2022-12-13 19:27:31,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 55 transitions, 224 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 19:27:31,577 INFO L231 Difference]: Finished difference. Result has 38 places, 26 transitions, 88 flow [2022-12-13 19:27:31,578 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=88, PETRI_PLACES=38, PETRI_TRANSITIONS=26} [2022-12-13 19:27:31,578 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, -3 predicate places. [2022-12-13 19:27:31,578 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 26 transitions, 88 flow [2022-12-13 19:27:31,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 112.25) internal successors, (449), 4 states have internal predecessors, (449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:31,582 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:27:31,582 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:27:31,594 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-12-13 19:27:31,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:27:31,783 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 19:27:31,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:27:31,783 INFO L85 PathProgramCache]: Analyzing trace with hash 293566170, now seen corresponding path program 1 times [2022-12-13 19:27:31,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:27:31,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1761577843] [2022-12-13 19:27:31,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:27:31,784 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:27:31,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:27:31,785 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 19:27:31,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-12-13 19:27:31,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:27:31,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 19:27:31,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:27:31,900 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 19:27:31,900 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:27:31,901 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:27:31,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1761577843] [2022-12-13 19:27:31,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1761577843] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:27:31,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:27:31,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 19:27:31,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451442835] [2022-12-13 19:27:31,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:27:31,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 19:27:31,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:27:31,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 19:27:31,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:27:31,921 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 244 [2022-12-13 19:27:31,922 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 26 transitions, 88 flow. Second operand has 5 states, 5 states have (on average 112.4) internal successors, (562), 5 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:31,923 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:27:31,923 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 244 [2022-12-13 19:27:31,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:27:32,154 INFO L130 PetriNetUnfolder]: 233/449 cut-off events. [2022-12-13 19:27:32,154 INFO L131 PetriNetUnfolder]: For 143/143 co-relation queries the response was YES. [2022-12-13 19:27:32,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1185 conditions, 449 events. 233/449 cut-off events. For 143/143 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1871 event pairs, 61 based on Foata normal form. 37/472 useless extension candidates. Maximal degree in co-relation 1178. Up to 140 conditions per place. [2022-12-13 19:27:32,157 INFO L137 encePairwiseOnDemand]: 238/244 looper letters, 37 selfloop transitions, 7 changer transitions 19/66 dead transitions. [2022-12-13 19:27:32,157 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 66 transitions, 338 flow [2022-12-13 19:27:32,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 19:27:32,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 19:27:32,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 725 transitions. [2022-12-13 19:27:32,160 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4952185792349727 [2022-12-13 19:27:32,160 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 725 transitions. [2022-12-13 19:27:32,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 725 transitions. [2022-12-13 19:27:32,160 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:27:32,161 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 725 transitions. [2022-12-13 19:27:32,162 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 120.83333333333333) internal successors, (725), 6 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:32,165 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 244.0) internal successors, (1708), 7 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:32,166 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 244.0) internal successors, (1708), 7 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:32,166 INFO L175 Difference]: Start difference. First operand has 38 places, 26 transitions, 88 flow. Second operand 6 states and 725 transitions. [2022-12-13 19:27:32,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 66 transitions, 338 flow [2022-12-13 19:27:32,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 66 transitions, 332 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-12-13 19:27:32,169 INFO L231 Difference]: Finished difference. Result has 42 places, 29 transitions, 138 flow [2022-12-13 19:27:32,169 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=138, PETRI_PLACES=42, PETRI_TRANSITIONS=29} [2022-12-13 19:27:32,170 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, 1 predicate places. [2022-12-13 19:27:32,170 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 29 transitions, 138 flow [2022-12-13 19:27:32,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 112.4) internal successors, (562), 5 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:32,170 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:27:32,171 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:27:32,178 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-12-13 19:27:32,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:27:32,372 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 19:27:32,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:27:32,373 INFO L85 PathProgramCache]: Analyzing trace with hash -288500159, now seen corresponding path program 1 times [2022-12-13 19:27:32,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:27:32,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1653713130] [2022-12-13 19:27:32,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:27:32,376 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:27:32,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:27:32,380 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 19:27:32,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-12-13 19:27:32,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:27:32,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 19:27:32,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:27:32,579 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 19:27:32,579 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:27:32,580 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:27:32,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1653713130] [2022-12-13 19:27:32,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1653713130] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:27:32,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:27:32,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 19:27:32,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640655094] [2022-12-13 19:27:32,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:27:32,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 19:27:32,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:27:32,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 19:27:32,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 19:27:32,601 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 244 [2022-12-13 19:27:32,602 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 29 transitions, 138 flow. Second operand has 6 states, 6 states have (on average 112.5) internal successors, (675), 6 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:32,602 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:27:32,602 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 244 [2022-12-13 19:27:32,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:27:32,847 INFO L130 PetriNetUnfolder]: 143/287 cut-off events. [2022-12-13 19:27:32,847 INFO L131 PetriNetUnfolder]: For 257/257 co-relation queries the response was YES. [2022-12-13 19:27:32,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 820 conditions, 287 events. 143/287 cut-off events. For 257/257 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1064 event pairs, 56 based on Foata normal form. 10/292 useless extension candidates. Maximal degree in co-relation 811. Up to 108 conditions per place. [2022-12-13 19:27:32,849 INFO L137 encePairwiseOnDemand]: 238/244 looper letters, 34 selfloop transitions, 10 changer transitions 10/57 dead transitions. [2022-12-13 19:27:32,849 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 57 transitions, 336 flow [2022-12-13 19:27:32,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 19:27:32,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 19:27:32,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 826 transitions. [2022-12-13 19:27:32,851 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48360655737704916 [2022-12-13 19:27:32,851 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 826 transitions. [2022-12-13 19:27:32,852 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 826 transitions. [2022-12-13 19:27:32,852 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:27:32,852 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 826 transitions. [2022-12-13 19:27:32,854 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 118.0) internal successors, (826), 7 states have internal predecessors, (826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:32,857 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 244.0) internal successors, (1952), 8 states have internal predecessors, (1952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:32,858 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 244.0) internal successors, (1952), 8 states have internal predecessors, (1952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:32,858 INFO L175 Difference]: Start difference. First operand has 42 places, 29 transitions, 138 flow. Second operand 7 states and 826 transitions. [2022-12-13 19:27:32,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 57 transitions, 336 flow [2022-12-13 19:27:32,861 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 57 transitions, 300 flow, removed 14 selfloop flow, removed 4 redundant places. [2022-12-13 19:27:32,862 INFO L231 Difference]: Finished difference. Result has 45 places, 29 transitions, 140 flow [2022-12-13 19:27:32,862 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=140, PETRI_PLACES=45, PETRI_TRANSITIONS=29} [2022-12-13 19:27:32,863 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, 4 predicate places. [2022-12-13 19:27:32,863 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 29 transitions, 140 flow [2022-12-13 19:27:32,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 112.5) internal successors, (675), 6 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:32,863 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:27:32,864 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:27:32,872 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-12-13 19:27:33,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:27:33,064 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 19:27:33,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:27:33,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1723166037, now seen corresponding path program 1 times [2022-12-13 19:27:33,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:27:33,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [68068524] [2022-12-13 19:27:33,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:27:33,065 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:27:33,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:27:33,066 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 19:27:33,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-12-13 19:27:33,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:27:33,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 19:27:33,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:27:33,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:27:33,191 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:27:33,191 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:27:33,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [68068524] [2022-12-13 19:27:33,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [68068524] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:27:33,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:27:33,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 19:27:33,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427352612] [2022-12-13 19:27:33,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:27:33,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 19:27:33,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:27:33,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 19:27:33,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 19:27:33,200 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 244 [2022-12-13 19:27:33,201 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 29 transitions, 140 flow. Second operand has 4 states, 4 states have (on average 115.75) internal successors, (463), 4 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:33,201 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:27:33,201 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 244 [2022-12-13 19:27:33,201 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:27:33,366 INFO L130 PetriNetUnfolder]: 198/369 cut-off events. [2022-12-13 19:27:33,366 INFO L131 PetriNetUnfolder]: For 420/420 co-relation queries the response was YES. [2022-12-13 19:27:33,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1094 conditions, 369 events. 198/369 cut-off events. For 420/420 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1558 event pairs, 18 based on Foata normal form. 0/367 useless extension candidates. Maximal degree in co-relation 1084. Up to 224 conditions per place. [2022-12-13 19:27:33,369 INFO L137 encePairwiseOnDemand]: 241/244 looper letters, 55 selfloop transitions, 2 changer transitions 0/59 dead transitions. [2022-12-13 19:27:33,369 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 59 transitions, 412 flow [2022-12-13 19:27:33,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 19:27:33,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 19:27:33,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 488 transitions. [2022-12-13 19:27:33,371 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5 [2022-12-13 19:27:33,372 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 488 transitions. [2022-12-13 19:27:33,372 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 488 transitions. [2022-12-13 19:27:33,372 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:27:33,372 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 488 transitions. [2022-12-13 19:27:33,373 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 122.0) internal successors, (488), 4 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:33,374 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 244.0) internal successors, (1220), 5 states have internal predecessors, (1220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:33,374 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 244.0) internal successors, (1220), 5 states have internal predecessors, (1220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:33,374 INFO L175 Difference]: Start difference. First operand has 45 places, 29 transitions, 140 flow. Second operand 4 states and 488 transitions. [2022-12-13 19:27:33,375 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 59 transitions, 412 flow [2022-12-13 19:27:33,377 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 59 transitions, 332 flow, removed 24 selfloop flow, removed 6 redundant places. [2022-12-13 19:27:33,379 INFO L231 Difference]: Finished difference. Result has 42 places, 30 transitions, 115 flow [2022-12-13 19:27:33,379 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=115, PETRI_PLACES=42, PETRI_TRANSITIONS=30} [2022-12-13 19:27:33,380 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, 1 predicate places. [2022-12-13 19:27:33,380 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 30 transitions, 115 flow [2022-12-13 19:27:33,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 115.75) internal successors, (463), 4 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:33,380 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:27:33,380 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:27:33,392 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2022-12-13 19:27:33,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:27:33,581 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 19:27:33,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:27:33,582 INFO L85 PathProgramCache]: Analyzing trace with hash 823588953, now seen corresponding path program 2 times [2022-12-13 19:27:33,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:27:33,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [133366869] [2022-12-13 19:27:33,583 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 19:27:33,583 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:27:33,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:27:33,584 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 19:27:33,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-12-13 19:27:33,675 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 19:27:33,676 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 19:27:33,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-13 19:27:33,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:27:33,856 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 19:27:33,856 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:27:33,856 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:27:33,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [133366869] [2022-12-13 19:27:33,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [133366869] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:27:33,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:27:33,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 19:27:33,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779255940] [2022-12-13 19:27:33,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:27:33,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 19:27:33,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:27:33,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 19:27:33,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-13 19:27:33,898 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 244 [2022-12-13 19:27:33,899 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 30 transitions, 115 flow. Second operand has 7 states, 7 states have (on average 111.57142857142857) internal successors, (781), 7 states have internal predecessors, (781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:33,899 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:27:33,900 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 244 [2022-12-13 19:27:33,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:27:34,143 INFO L130 PetriNetUnfolder]: 206/427 cut-off events. [2022-12-13 19:27:34,144 INFO L131 PetriNetUnfolder]: For 316/316 co-relation queries the response was YES. [2022-12-13 19:27:34,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1211 conditions, 427 events. 206/427 cut-off events. For 316/316 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1842 event pairs, 23 based on Foata normal form. 1/426 useless extension candidates. Maximal degree in co-relation 1202. Up to 152 conditions per place. [2022-12-13 19:27:34,145 INFO L137 encePairwiseOnDemand]: 238/244 looper letters, 57 selfloop transitions, 6 changer transitions 0/67 dead transitions. [2022-12-13 19:27:34,146 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 67 transitions, 395 flow [2022-12-13 19:27:34,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 19:27:34,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 19:27:34,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 811 transitions. [2022-12-13 19:27:34,148 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.474824355971897 [2022-12-13 19:27:34,148 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 811 transitions. [2022-12-13 19:27:34,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 811 transitions. [2022-12-13 19:27:34,149 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:27:34,149 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 811 transitions. [2022-12-13 19:27:34,151 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 115.85714285714286) internal successors, (811), 7 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:34,153 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 244.0) internal successors, (1952), 8 states have internal predecessors, (1952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:34,153 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 244.0) internal successors, (1952), 8 states have internal predecessors, (1952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:34,153 INFO L175 Difference]: Start difference. First operand has 42 places, 30 transitions, 115 flow. Second operand 7 states and 811 transitions. [2022-12-13 19:27:34,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 67 transitions, 395 flow [2022-12-13 19:27:34,155 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 67 transitions, 392 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 19:27:34,157 INFO L231 Difference]: Finished difference. Result has 49 places, 32 transitions, 138 flow [2022-12-13 19:27:34,157 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=138, PETRI_PLACES=49, PETRI_TRANSITIONS=32} [2022-12-13 19:27:34,158 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, 8 predicate places. [2022-12-13 19:27:34,158 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 32 transitions, 138 flow [2022-12-13 19:27:34,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 111.57142857142857) internal successors, (781), 7 states have internal predecessors, (781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:34,159 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:27:34,159 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:27:34,167 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2022-12-13 19:27:34,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:27:34,360 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 19:27:34,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:27:34,361 INFO L85 PathProgramCache]: Analyzing trace with hash -935427435, now seen corresponding path program 3 times [2022-12-13 19:27:34,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:27:34,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [620858751] [2022-12-13 19:27:34,363 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 19:27:34,364 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:27:34,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:27:34,367 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 19:27:34,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-12-13 19:27:34,526 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-13 19:27:34,526 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 19:27:34,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 19:27:34,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:27:34,542 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 19:27:34,542 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:27:34,542 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:27:34,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [620858751] [2022-12-13 19:27:34,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [620858751] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:27:34,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:27:34,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 19:27:34,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127350570] [2022-12-13 19:27:34,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:27:34,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 19:27:34,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:27:34,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 19:27:34,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:27:34,551 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 244 [2022-12-13 19:27:34,552 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 32 transitions, 138 flow. Second operand has 3 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:34,552 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:27:34,552 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 244 [2022-12-13 19:27:34,552 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:27:34,700 INFO L130 PetriNetUnfolder]: 342/716 cut-off events. [2022-12-13 19:27:34,700 INFO L131 PetriNetUnfolder]: For 672/672 co-relation queries the response was YES. [2022-12-13 19:27:34,701 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2245 conditions, 716 events. 342/716 cut-off events. For 672/672 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 3685 event pairs, 116 based on Foata normal form. 1/709 useless extension candidates. Maximal degree in co-relation 2234. Up to 357 conditions per place. [2022-12-13 19:27:34,703 INFO L137 encePairwiseOnDemand]: 241/244 looper letters, 49 selfloop transitions, 2 changer transitions 0/54 dead transitions. [2022-12-13 19:27:34,703 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 54 transitions, 338 flow [2022-12-13 19:27:34,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 19:27:34,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 19:27:34,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 372 transitions. [2022-12-13 19:27:34,704 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5081967213114754 [2022-12-13 19:27:34,705 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 372 transitions. [2022-12-13 19:27:34,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 372 transitions. [2022-12-13 19:27:34,705 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:27:34,705 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 372 transitions. [2022-12-13 19:27:34,705 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:34,706 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 244.0) internal successors, (976), 4 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:34,706 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 244.0) internal successors, (976), 4 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:34,707 INFO L175 Difference]: Start difference. First operand has 49 places, 32 transitions, 138 flow. Second operand 3 states and 372 transitions. [2022-12-13 19:27:34,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 54 transitions, 338 flow [2022-12-13 19:27:34,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 54 transitions, 330 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 19:27:34,710 INFO L231 Difference]: Finished difference. Result has 49 places, 33 transitions, 144 flow [2022-12-13 19:27:34,710 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=144, PETRI_PLACES=49, PETRI_TRANSITIONS=33} [2022-12-13 19:27:34,711 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, 8 predicate places. [2022-12-13 19:27:34,711 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 33 transitions, 144 flow [2022-12-13 19:27:34,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:27:34,711 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:27:34,711 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:27:34,723 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2022-12-13 19:27:34,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:27:34,913 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 19:27:34,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:27:34,913 INFO L85 PathProgramCache]: Analyzing trace with hash 347269381, now seen corresponding path program 4 times [2022-12-13 19:27:34,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:27:34,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2054188875] [2022-12-13 19:27:34,914 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 19:27:34,914 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:27:34,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:27:34,915 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 19:27:34,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-12-13 19:27:35,030 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 19:27:35,030 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2022-12-13 19:27:35,030 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 19:27:35,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:27:35,144 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 19:27:35,144 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 19:27:35,145 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (12 of 13 remaining) [2022-12-13 19:27:35,146 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (11 of 13 remaining) [2022-12-13 19:27:35,147 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 13 remaining) [2022-12-13 19:27:35,147 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 13 remaining) [2022-12-13 19:27:35,147 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 13 remaining) [2022-12-13 19:27:35,147 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 13 remaining) [2022-12-13 19:27:35,147 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 13 remaining) [2022-12-13 19:27:35,147 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 13 remaining) [2022-12-13 19:27:35,147 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (4 of 13 remaining) [2022-12-13 19:27:35,147 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 13 remaining) [2022-12-13 19:27:35,148 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 13 remaining) [2022-12-13 19:27:35,148 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 13 remaining) [2022-12-13 19:27:35,148 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 13 remaining) [2022-12-13 19:27:35,157 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2022-12-13 19:27:35,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:27:35,350 INFO L445 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1, 1] [2022-12-13 19:27:35,367 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 19:27:35,367 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 19:27:35,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 07:27:35 BasicIcfg [2022-12-13 19:27:35,449 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 19:27:35,449 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 19:27:35,449 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 19:27:35,450 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 19:27:35,450 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:27:23" (3/4) ... [2022-12-13 19:27:35,453 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 19:27:35,453 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 19:27:35,453 INFO L158 Benchmark]: Toolchain (without parser) took 12815.52ms. Allocated memory was 79.7MB in the beginning and 117.4MB in the end (delta: 37.7MB). Free memory was 55.1MB in the beginning and 75.4MB in the end (delta: -20.3MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. [2022-12-13 19:27:35,454 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 50.3MB. Free memory was 28.2MB in the beginning and 28.1MB in the end (delta: 52.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 19:27:35,454 INFO L158 Benchmark]: CACSL2BoogieTranslator took 407.68ms. Allocated memory is still 79.7MB. Free memory was 54.9MB in the beginning and 50.1MB in the end (delta: 4.8MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. [2022-12-13 19:27:35,454 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.81ms. Allocated memory is still 79.7MB. Free memory was 50.1MB in the beginning and 47.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 19:27:35,455 INFO L158 Benchmark]: Boogie Preprocessor took 25.84ms. Allocated memory is still 79.7MB. Free memory was 47.5MB in the beginning and 45.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 19:27:35,455 INFO L158 Benchmark]: RCFGBuilder took 633.48ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 45.4MB in the beginning and 47.9MB in the end (delta: -2.5MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. [2022-12-13 19:27:35,456 INFO L158 Benchmark]: TraceAbstraction took 11704.03ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 47.4MB in the beginning and 75.4MB in the end (delta: -28.0MB). Peak memory consumption was 40.6MB. Max. memory is 16.1GB. [2022-12-13 19:27:35,456 INFO L158 Benchmark]: Witness Printer took 3.38ms. Allocated memory is still 117.4MB. Free memory is still 75.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 19:27:35,458 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 50.3MB. Free memory was 28.2MB in the beginning and 28.1MB in the end (delta: 52.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 407.68ms. Allocated memory is still 79.7MB. Free memory was 54.9MB in the beginning and 50.1MB in the end (delta: 4.8MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.81ms. Allocated memory is still 79.7MB. Free memory was 50.1MB in the beginning and 47.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.84ms. Allocated memory is still 79.7MB. Free memory was 47.5MB in the beginning and 45.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 633.48ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 45.4MB in the beginning and 47.9MB in the end (delta: -2.5MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. * TraceAbstraction took 11704.03ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 47.4MB in the beginning and 75.4MB in the end (delta: -28.0MB). Peak memory consumption was 40.6MB. Max. memory is 16.1GB. * Witness Printer took 3.38ms. Allocated memory is still 117.4MB. Free memory is still 75.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.9s, 132 PlacesBefore, 41 PlacesAfterwards, 124 TransitionsBefore, 32 TransitionsAfterwards, 2264 CoEnabledTransitionPairs, 7 FixpointIterations, 48 TrivialSequentialCompositions, 61 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 117 TotalNumberOfCompositions, 6102 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3178, independent: 2992, independent conditional: 0, independent unconditional: 2992, dependent: 186, dependent conditional: 0, dependent unconditional: 186, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1270, independent: 1229, independent conditional: 0, independent unconditional: 1229, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3178, independent: 1763, independent conditional: 0, independent unconditional: 1763, dependent: 145, dependent conditional: 0, dependent unconditional: 145, unknown: 1270, unknown conditional: 0, unknown unconditional: 1270] , Statistics on independence cache: Total cache size (in pairs): 109, Positive cache size: 95, Positive conditional cache size: 0, Positive unconditional cache size: 95, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - UnprovableResult [Line: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 19. Possible FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p0_EAX = 0; [L714] 0 int __unbuffered_p2_EAX = 0; [L716] 0 int __unbuffered_p2_EBX = 0; [L717] 0 _Bool main$tmp_guard0; [L718] 0 _Bool main$tmp_guard1; [L720] 0 int x = 0; [L721] 0 _Bool x$flush_delayed; [L722] 0 int x$mem_tmp; [L723] 0 _Bool x$r_buff0_thd0; [L724] 0 _Bool x$r_buff0_thd1; [L725] 0 _Bool x$r_buff0_thd2; [L726] 0 _Bool x$r_buff0_thd3; [L727] 0 _Bool x$r_buff1_thd0; [L728] 0 _Bool x$r_buff1_thd1; [L729] 0 _Bool x$r_buff1_thd2; [L730] 0 _Bool x$r_buff1_thd3; [L731] 0 _Bool x$read_delayed; [L732] 0 int *x$read_delayed_var; [L733] 0 int x$w_buff0; [L734] 0 _Bool x$w_buff0_used; [L735] 0 int x$w_buff1; [L736] 0 _Bool x$w_buff1_used; [L738] 0 int y = 0; [L740] 0 int z = 0; [L741] 0 _Bool weak$$choice0; [L742] 0 _Bool weak$$choice2; [L834] 0 pthread_t t666; [L835] FCALL, FORK 0 pthread_create(&t666, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t666, ((void *)0), P0, ((void *)0))=-2147483648, t666={-6:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L836] 0 pthread_t t667; [L837] FCALL, FORK 0 pthread_create(&t667, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t667, ((void *)0), P1, ((void *)0))=-2147483647, t666={-6:0}, t667={-10:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L774] 2 x$w_buff1 = x$w_buff0 [L775] 2 x$w_buff0 = 1 [L776] 2 x$w_buff1_used = x$w_buff0_used [L777] 2 x$w_buff0_used = (_Bool)1 [L778] CALL 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L19] COND FALSE 2 !(!expression) [L778] RET 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L779] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L780] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L781] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L782] 2 x$r_buff1_thd3 = x$r_buff0_thd3 [L783] 2 x$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L838] 0 pthread_t t668; [L839] FCALL, FORK 0 pthread_create(&t668, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t668, ((void *)0), P2, ((void *)0))=-2147483646, t666={-6:0}, t667={-10:0}, t668={-2:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L786] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=0] [L803] 3 y = 2 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2, z=0] [L806] 3 __unbuffered_p2_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2, z=0] [L809] 3 __unbuffered_p2_EBX = z VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2, z=0] [L746] 1 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2, z=1] [L749] 1 weak$$choice0 = __VERIFIER_nondet_bool() [L750] 1 weak$$choice2 = __VERIFIER_nondet_bool() [L751] 1 x$flush_delayed = weak$$choice2 [L752] 1 x$mem_tmp = x [L753] 1 x = !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff1) [L754] 1 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff0)) [L755] 1 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff1 : x$w_buff1)) [L756] 1 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used)) [L757] 1 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L758] 1 x$r_buff0_thd1 = weak$$choice2 ? x$r_buff0_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff0_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1)) [L759] 1 x$r_buff1_thd1 = weak$$choice2 ? x$r_buff1_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff1_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L760] 1 __unbuffered_p0_EAX = x [L761] 1 x = x$flush_delayed ? x$mem_tmp : x [L762] 1 x$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2, z=1] [L767] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L769] 1 return 0; [L789] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L790] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L791] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L792] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L793] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=2, z=1] [L812] 3 x = x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x) [L813] 3 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$w_buff0_used [L814] 3 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$w_buff1_used [L815] 3 x$r_buff0_thd3 = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$r_buff0_thd3 [L816] 3 x$r_buff1_thd3 = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$r_buff1_thd3 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=2, z=1] [L796] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L798] 2 return 0; [L819] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L821] 3 return 0; [L841] 0 main$tmp_guard0 = __unbuffered_cnt == 3 [L843] CALL 0 assume_abort_if_not(main$tmp_guard0) [L4] COND FALSE 0 !(!cond) [L843] RET 0 assume_abort_if_not(main$tmp_guard0) [L845] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L846] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L847] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L848] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L849] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t666={-6:0}, t667={-10:0}, t668={-2:0}, weak$$choice0=2, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=2, z=1] [L852] 0 main$tmp_guard1 = !(y == 2 && __unbuffered_p0_EAX == 0 && __unbuffered_p2_EAX == 2 && __unbuffered_p2_EBX == 0) [L854] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L19] COND TRUE 0 !expression [L19] 0 reach_error() VAL [\old(expression)=1, \old(expression)=0, \result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=2, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=0, expression=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=2, z=1] - UnprovableResult [Line: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 832]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 839]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 837]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 835]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 154 locations, 13 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 11.5s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 244 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 202 mSDsluCounter, 77 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 71 mSDsCounter, 35 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 920 IncrementalHoareTripleChecker+Invalid, 955 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 35 mSolverCounterUnsat, 6 mSDtfsCounter, 920 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 104 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=144occurred in iteration=8, InterpolantAutomatonStates: 37, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 127 NumberOfCodeBlocks, 127 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 98 ConstructedInterpolants, 0 QuantifiedInterpolants, 412 SizeOfPredicates, 13 NumberOfNonLiveVariables, 951 ConjunctsInSsa, 49 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 19:27:35,470 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409688f1-e05b-44ac-988a-4caa7f7d7d55/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample