./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix043.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/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_31b8d579-5be7-4120-936f-1b43e6180a14/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix043.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/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_31b8d579-5be7-4120-936f-1b43e6180a14/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 9bfd96daa3950021158d7079dc25a62741fa5d5a7f9e521049c1a78760db50f1 --- 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 17:58:58,231 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 17:58:58,232 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 17:58:58,251 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 17:58:58,251 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 17:58:58,252 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 17:58:58,253 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 17:58:58,255 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 17:58:58,256 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 17:58:58,257 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 17:58:58,258 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 17:58:58,259 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 17:58:58,260 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 17:58:58,261 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 17:58:58,262 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 17:58:58,263 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 17:58:58,264 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 17:58:58,265 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 17:58:58,266 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 17:58:58,268 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 17:58:58,270 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 17:58:58,271 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 17:58:58,272 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 17:58:58,273 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 17:58:58,276 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 17:58:58,276 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 17:58:58,276 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 17:58:58,277 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 17:58:58,278 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 17:58:58,279 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 17:58:58,279 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 17:58:58,280 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 17:58:58,281 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 17:58:58,281 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 17:58:58,282 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 17:58:58,282 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 17:58:58,283 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 17:58:58,283 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 17:58:58,283 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 17:58:58,284 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 17:58:58,284 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 17:58:58,285 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-12-13 17:58:58,306 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 17:58:58,306 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 17:58:58,306 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 17:58:58,307 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 17:58:58,307 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 17:58:58,307 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 17:58:58,308 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 17:58:58,308 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 17:58:58,308 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 17:58:58,308 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 17:58:58,308 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 17:58:58,308 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 17:58:58,309 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 17:58:58,309 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 17:58:58,309 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 17:58:58,309 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 17:58:58,309 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 17:58:58,310 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 17:58:58,310 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 17:58:58,310 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 17:58:58,310 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 17:58:58,310 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 17:58:58,310 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 17:58:58,310 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 17:58:58,310 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 17:58:58,310 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:58:58,311 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 17:58:58,311 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 17:58:58,311 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 17:58:58,311 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 17:58:58,311 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 17:58:58,311 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 17:58:58,311 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 17:58:58,311 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 17:58:58,311 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_31b8d579-5be7-4120-936f-1b43e6180a14/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9bfd96daa3950021158d7079dc25a62741fa5d5a7f9e521049c1a78760db50f1 [2022-12-13 17:58:58,516 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 17:58:58,534 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 17:58:58,537 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 17:58:58,538 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 17:58:58,538 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 17:58:58,539 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-wmm/mix043.oepc.i [2022-12-13 17:59:01,197 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 17:59:01,380 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 17:59:01,380 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/sv-benchmarks/c/pthread-wmm/mix043.oepc.i [2022-12-13 17:59:01,390 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/bin/uautomizer-uyxdKDjOR8/data/0d62e0259/3bb8a705c414438a915fd6cc8da66d65/FLAG10c8308c0 [2022-12-13 17:59:01,400 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/bin/uautomizer-uyxdKDjOR8/data/0d62e0259/3bb8a705c414438a915fd6cc8da66d65 [2022-12-13 17:59:01,402 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 17:59:01,403 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 17:59:01,404 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 17:59:01,404 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 17:59:01,406 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 17:59:01,407 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:59:01" (1/1) ... [2022-12-13 17:59:01,408 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d0896e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:59:01, skipping insertion in model container [2022-12-13 17:59:01,408 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:59:01" (1/1) ... [2022-12-13 17:59:01,413 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 17:59:01,442 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 17:59:01,551 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_31b8d579-5be7-4120-936f-1b43e6180a14/sv-benchmarks/c/pthread-wmm/mix043.oepc.i[945,958] [2022-12-13 17:59:01,662 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:01,664 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:01,664 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:01,665 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:01,665 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:01,667 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:01,667 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:01,667 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:01,668 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:01,668 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:01,668 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:01,669 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:01,669 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:01,671 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:01,671 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:01,671 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:01,672 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:01,672 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:01,672 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:01,672 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:01,672 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:01,674 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:01,674 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:01,675 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:01,675 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:01,675 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:01,676 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:01,676 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:01,676 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:01,676 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:01,676 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:01,682 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:01,682 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:01,684 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:01,684 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:01,685 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:01,689 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:01,690 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:01,690 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:01,692 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:01,692 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:01,693 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:01,693 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:59:01,701 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 17:59:01,709 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_31b8d579-5be7-4120-936f-1b43e6180a14/sv-benchmarks/c/pthread-wmm/mix043.oepc.i[945,958] [2022-12-13 17:59:01,724 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:01,725 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:01,725 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:01,725 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:01,725 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:01,726 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:01,727 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:01,727 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:01,727 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:01,727 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:01,728 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:01,728 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:01,728 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:01,729 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:01,729 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:01,730 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:01,730 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:01,730 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:01,730 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:01,730 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:01,731 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:01,732 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:01,732 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:01,732 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:01,733 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:01,733 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:01,733 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:01,733 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:01,733 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:01,733 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:01,734 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:01,738 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:01,738 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:01,739 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:01,739 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:01,740 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:01,742 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:01,743 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:01,743 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:01,745 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:01,745 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:01,745 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:01,746 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:59:01,768 INFO L208 MainTranslator]: Completed translation [2022-12-13 17:59:01,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:59:01 WrapperNode [2022-12-13 17:59:01,769 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 17:59:01,769 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 17:59:01,770 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 17:59:01,770 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 17:59:01,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:59:01" (1/1) ... [2022-12-13 17:59:01,786 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:59:01" (1/1) ... [2022-12-13 17:59:01,802 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 146 [2022-12-13 17:59:01,803 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 17:59:01,803 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 17:59:01,803 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 17:59:01,803 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 17:59:01,811 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:59:01" (1/1) ... [2022-12-13 17:59:01,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:59:01" (1/1) ... [2022-12-13 17:59:01,813 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:59:01" (1/1) ... [2022-12-13 17:59:01,813 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:59:01" (1/1) ... [2022-12-13 17:59:01,818 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:59:01" (1/1) ... [2022-12-13 17:59:01,820 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:59:01" (1/1) ... [2022-12-13 17:59:01,821 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:59:01" (1/1) ... [2022-12-13 17:59:01,822 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:59:01" (1/1) ... [2022-12-13 17:59:01,825 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 17:59:01,825 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 17:59:01,825 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 17:59:01,825 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 17:59:01,826 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:59:01" (1/1) ... [2022-12-13 17:59:01,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:59:01,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:59:01,850 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 17:59:01,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 17:59:01,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 17:59:01,891 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 17:59:01,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 17:59:01,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 17:59:01,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 17:59:01,892 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 17:59:01,892 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 17:59:01,892 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 17:59:01,892 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 17:59:01,892 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-13 17:59:01,892 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-13 17:59:01,893 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-13 17:59:01,893 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-13 17:59:01,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 17:59:01,893 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 17:59:01,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 17:59:01,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 17:59:01,895 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 17:59:02,019 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 17:59:02,021 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 17:59:02,297 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 17:59:02,368 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 17:59:02,368 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 17:59:02,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:59:02 BoogieIcfgContainer [2022-12-13 17:59:02,370 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 17:59:02,372 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 17:59:02,372 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 17:59:02,374 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 17:59:02,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 05:59:01" (1/3) ... [2022-12-13 17:59:02,375 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12f80ee6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:59:02, skipping insertion in model container [2022-12-13 17:59:02,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:59:01" (2/3) ... [2022-12-13 17:59:02,375 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12f80ee6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:59:02, skipping insertion in model container [2022-12-13 17:59:02,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:59:02" (3/3) ... [2022-12-13 17:59:02,376 INFO L112 eAbstractionObserver]: Analyzing ICFG mix043.oepc.i [2022-12-13 17:59:02,390 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 17:59:02,390 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2022-12-13 17:59:02,390 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 17:59:02,436 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 17:59:02,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 163 places, 152 transitions, 324 flow [2022-12-13 17:59:02,501 INFO L130 PetriNetUnfolder]: 2/148 cut-off events. [2022-12-13 17:59:02,501 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 17:59:02,505 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161 conditions, 148 events. 2/148 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 108 event pairs, 0 based on Foata normal form. 0/135 useless extension candidates. Maximal degree in co-relation 102. Up to 2 conditions per place. [2022-12-13 17:59:02,505 INFO L82 GeneralOperation]: Start removeDead. Operand has 163 places, 152 transitions, 324 flow [2022-12-13 17:59:02,509 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 159 places, 148 transitions, 308 flow [2022-12-13 17:59:02,512 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 17:59:02,519 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 159 places, 148 transitions, 308 flow [2022-12-13 17:59:02,521 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 159 places, 148 transitions, 308 flow [2022-12-13 17:59:02,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 159 places, 148 transitions, 308 flow [2022-12-13 17:59:02,551 INFO L130 PetriNetUnfolder]: 2/148 cut-off events. [2022-12-13 17:59:02,551 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 17:59:02,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161 conditions, 148 events. 2/148 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 108 event pairs, 0 based on Foata normal form. 0/135 useless extension candidates. Maximal degree in co-relation 102. Up to 2 conditions per place. [2022-12-13 17:59:02,553 INFO L119 LiptonReduction]: Number of co-enabled transitions 3884 [2022-12-13 17:59:06,586 INFO L134 LiptonReduction]: Checked pairs total: 11243 [2022-12-13 17:59:06,586 INFO L136 LiptonReduction]: Total number of compositions: 139 [2022-12-13 17:59:06,599 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 17:59:06,604 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;@16e2d106, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 17:59:06,604 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-12-13 17:59:06,605 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 17:59:06,606 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 17:59:06,606 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:59:06,606 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 17:59:06,607 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:59:06,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:59:06,611 INFO L85 PathProgramCache]: Analyzing trace with hash 631, now seen corresponding path program 1 times [2022-12-13 17:59:06,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:59:06,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477226652] [2022-12-13 17:59:06,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:59:06,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:59:06,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:06,701 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 17:59:06,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:59:06,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477226652] [2022-12-13 17:59:06,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477226652] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:59:06,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:59:06,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 17:59:06,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858350012] [2022-12-13 17:59:06,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:59:06,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 17:59:06,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:59:06,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 17:59:06,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 17:59:06,728 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 291 [2022-12-13 17:59:06,730 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 39 transitions, 90 flow. Second operand has 2 states, 2 states have (on average 137.5) internal successors, (275), 2 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:06,730 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:59:06,730 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 291 [2022-12-13 17:59:06,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:59:07,968 INFO L130 PetriNetUnfolder]: 7479/10189 cut-off events. [2022-12-13 17:59:07,968 INFO L131 PetriNetUnfolder]: For 82/82 co-relation queries the response was YES. [2022-12-13 17:59:07,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20497 conditions, 10189 events. 7479/10189 cut-off events. For 82/82 co-relation queries the response was YES. Maximal size of possible extension queue 478. Compared 52511 event pairs, 7479 based on Foata normal form. 0/8785 useless extension candidates. Maximal degree in co-relation 20485. Up to 10091 conditions per place. [2022-12-13 17:59:08,024 INFO L137 encePairwiseOnDemand]: 283/291 looper letters, 27 selfloop transitions, 0 changer transitions 0/31 dead transitions. [2022-12-13 17:59:08,024 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 31 transitions, 128 flow [2022-12-13 17:59:08,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 17:59:08,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 17:59:08,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 309 transitions. [2022-12-13 17:59:08,038 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5309278350515464 [2022-12-13 17:59:08,039 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 309 transitions. [2022-12-13 17:59:08,039 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 309 transitions. [2022-12-13 17:59:08,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:59:08,043 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 309 transitions. [2022-12-13 17:59:08,046 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 154.5) internal successors, (309), 2 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:08,051 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 291.0) internal successors, (873), 3 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:08,052 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 291.0) internal successors, (873), 3 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:08,054 INFO L175 Difference]: Start difference. First operand has 52 places, 39 transitions, 90 flow. Second operand 2 states and 309 transitions. [2022-12-13 17:59:08,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 31 transitions, 128 flow [2022-12-13 17:59:08,059 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 31 transitions, 124 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 17:59:08,061 INFO L231 Difference]: Finished difference. Result has 41 places, 31 transitions, 70 flow [2022-12-13 17:59:08,063 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=291, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=70, PETRI_PLACES=41, PETRI_TRANSITIONS=31} [2022-12-13 17:59:08,066 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -11 predicate places. [2022-12-13 17:59:08,067 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 31 transitions, 70 flow [2022-12-13 17:59:08,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 137.5) internal successors, (275), 2 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:08,067 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:59:08,067 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 17:59:08,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 17:59:08,068 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:59:08,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:59:08,068 INFO L85 PathProgramCache]: Analyzing trace with hash 619203, now seen corresponding path program 1 times [2022-12-13 17:59:08,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:59:08,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346024449] [2022-12-13 17:59:08,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:59:08,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:59:08,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:08,268 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 17:59:08,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:59:08,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346024449] [2022-12-13 17:59:08,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346024449] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:59:08,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:59:08,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 17:59:08,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045388303] [2022-12-13 17:59:08,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:59:08,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:59:08,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:59:08,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:59:08,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:59:08,274 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 291 [2022-12-13 17:59:08,274 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 31 transitions, 70 flow. Second operand has 3 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:08,274 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:59:08,274 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 291 [2022-12-13 17:59:08,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:59:09,133 INFO L130 PetriNetUnfolder]: 5879/8510 cut-off events. [2022-12-13 17:59:09,133 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 17:59:09,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16651 conditions, 8510 events. 5879/8510 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 419. Compared 51420 event pairs, 1079 based on Foata normal form. 0/7854 useless extension candidates. Maximal degree in co-relation 16648. Up to 6367 conditions per place. [2022-12-13 17:59:09,165 INFO L137 encePairwiseOnDemand]: 288/291 looper letters, 43 selfloop transitions, 2 changer transitions 2/51 dead transitions. [2022-12-13 17:59:09,165 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 51 transitions, 210 flow [2022-12-13 17:59:09,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:59:09,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 17:59:09,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 456 transitions. [2022-12-13 17:59:09,167 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5223367697594502 [2022-12-13 17:59:09,167 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 456 transitions. [2022-12-13 17:59:09,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 456 transitions. [2022-12-13 17:59:09,168 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:59:09,168 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 456 transitions. [2022-12-13 17:59:09,169 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 152.0) internal successors, (456), 3 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:09,170 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 291.0) internal successors, (1164), 4 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:09,171 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 291.0) internal successors, (1164), 4 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:09,171 INFO L175 Difference]: Start difference. First operand has 41 places, 31 transitions, 70 flow. Second operand 3 states and 456 transitions. [2022-12-13 17:59:09,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 51 transitions, 210 flow [2022-12-13 17:59:09,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 51 transitions, 210 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 17:59:09,172 INFO L231 Difference]: Finished difference. Result has 42 places, 29 transitions, 70 flow [2022-12-13 17:59:09,172 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=291, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=70, PETRI_PLACES=42, PETRI_TRANSITIONS=29} [2022-12-13 17:59:09,172 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -10 predicate places. [2022-12-13 17:59:09,172 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 29 transitions, 70 flow [2022-12-13 17:59:09,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:09,173 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:59:09,173 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:59:09,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 17:59:09,173 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:59:09,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:59:09,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1206932749, now seen corresponding path program 1 times [2022-12-13 17:59:09,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:59:09,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902697008] [2022-12-13 17:59:09,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:59:09,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:59:09,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:09,412 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 17:59:09,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:59:09,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902697008] [2022-12-13 17:59:09,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902697008] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:59:09,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:59:09,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 17:59:09,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616324447] [2022-12-13 17:59:09,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:59:09,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:59:09,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:59:09,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:59:09,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:59:09,428 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 291 [2022-12-13 17:59:09,429 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 29 transitions, 70 flow. Second operand has 3 states, 3 states have (on average 130.66666666666666) internal successors, (392), 3 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:09,429 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:59:09,429 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 291 [2022-12-13 17:59:09,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:59:11,440 INFO L130 PetriNetUnfolder]: 18849/25498 cut-off events. [2022-12-13 17:59:11,440 INFO L131 PetriNetUnfolder]: For 1295/1295 co-relation queries the response was YES. [2022-12-13 17:59:11,465 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52735 conditions, 25498 events. 18849/25498 cut-off events. For 1295/1295 co-relation queries the response was YES. Maximal size of possible extension queue 831. Compared 135565 event pairs, 6992 based on Foata normal form. 0/24768 useless extension candidates. Maximal degree in co-relation 52731. Up to 16383 conditions per place. [2022-12-13 17:59:11,528 INFO L137 encePairwiseOnDemand]: 282/291 looper letters, 47 selfloop transitions, 8 changer transitions 0/55 dead transitions. [2022-12-13 17:59:11,528 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 55 transitions, 240 flow [2022-12-13 17:59:11,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:59:11,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 17:59:11,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 437 transitions. [2022-12-13 17:59:11,530 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5005727376861397 [2022-12-13 17:59:11,530 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 437 transitions. [2022-12-13 17:59:11,530 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 437 transitions. [2022-12-13 17:59:11,530 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:59:11,530 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 437 transitions. [2022-12-13 17:59:11,531 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 145.66666666666666) internal successors, (437), 3 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:11,532 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 291.0) internal successors, (1164), 4 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:11,533 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 291.0) internal successors, (1164), 4 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:11,533 INFO L175 Difference]: Start difference. First operand has 42 places, 29 transitions, 70 flow. Second operand 3 states and 437 transitions. [2022-12-13 17:59:11,533 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 55 transitions, 240 flow [2022-12-13 17:59:11,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 55 transitions, 234 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 17:59:11,534 INFO L231 Difference]: Finished difference. Result has 43 places, 36 transitions, 128 flow [2022-12-13 17:59:11,535 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=291, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=128, PETRI_PLACES=43, PETRI_TRANSITIONS=36} [2022-12-13 17:59:11,535 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -9 predicate places. [2022-12-13 17:59:11,535 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 36 transitions, 128 flow [2022-12-13 17:59:11,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 130.66666666666666) internal successors, (392), 3 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:11,535 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:59:11,536 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:59:11,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 17:59:11,536 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:59:11,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:59:11,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1206932744, now seen corresponding path program 1 times [2022-12-13 17:59:11,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:59:11,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914024892] [2022-12-13 17:59:11,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:59:11,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:59:11,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:11,943 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 17:59:11,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:59:11,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914024892] [2022-12-13 17:59:11,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914024892] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:59:11,943 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:59:11,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 17:59:11,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254581756] [2022-12-13 17:59:11,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:59:11,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:59:11,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:59:11,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:59:11,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:59:12,097 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 291 [2022-12-13 17:59:12,098 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 36 transitions, 128 flow. Second operand has 6 states, 6 states have (on average 121.83333333333333) internal successors, (731), 6 states have internal predecessors, (731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:12,098 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:59:12,098 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 291 [2022-12-13 17:59:12,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:59:14,058 INFO L130 PetriNetUnfolder]: 13096/18369 cut-off events. [2022-12-13 17:59:14,058 INFO L131 PetriNetUnfolder]: For 4758/4891 co-relation queries the response was YES. [2022-12-13 17:59:14,085 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42636 conditions, 18369 events. 13096/18369 cut-off events. For 4758/4891 co-relation queries the response was YES. Maximal size of possible extension queue 716. Compared 103845 event pairs, 1699 based on Foata normal form. 616/18810 useless extension candidates. Maximal degree in co-relation 42631. Up to 13175 conditions per place. [2022-12-13 17:59:14,135 INFO L137 encePairwiseOnDemand]: 284/291 looper letters, 53 selfloop transitions, 6 changer transitions 0/65 dead transitions. [2022-12-13 17:59:14,135 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 65 transitions, 304 flow [2022-12-13 17:59:14,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 17:59:14,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 17:59:14,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 777 transitions. [2022-12-13 17:59:14,137 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44501718213058417 [2022-12-13 17:59:14,137 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 777 transitions. [2022-12-13 17:59:14,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 777 transitions. [2022-12-13 17:59:14,137 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:59:14,137 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 777 transitions. [2022-12-13 17:59:14,139 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 129.5) internal successors, (777), 6 states have internal predecessors, (777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:14,141 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 291.0) internal successors, (2037), 7 states have internal predecessors, (2037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:14,142 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 291.0) internal successors, (2037), 7 states have internal predecessors, (2037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:14,142 INFO L175 Difference]: Start difference. First operand has 43 places, 36 transitions, 128 flow. Second operand 6 states and 777 transitions. [2022-12-13 17:59:14,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 65 transitions, 304 flow [2022-12-13 17:59:14,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 65 transitions, 288 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 17:59:14,171 INFO L231 Difference]: Finished difference. Result has 47 places, 36 transitions, 133 flow [2022-12-13 17:59:14,172 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=291, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=133, PETRI_PLACES=47, PETRI_TRANSITIONS=36} [2022-12-13 17:59:14,172 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -5 predicate places. [2022-12-13 17:59:14,172 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 36 transitions, 133 flow [2022-12-13 17:59:14,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 121.83333333333333) internal successors, (731), 6 states have internal predecessors, (731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:14,173 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:59:14,173 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:59:14,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 17:59:14,173 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:59:14,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:59:14,173 INFO L85 PathProgramCache]: Analyzing trace with hash -228368940, now seen corresponding path program 1 times [2022-12-13 17:59:14,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:59:14,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660824544] [2022-12-13 17:59:14,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:59:14,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:59:14,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:14,497 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 17:59:14,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:59:14,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660824544] [2022-12-13 17:59:14,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660824544] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:59:14,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:59:14,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 17:59:14,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293131687] [2022-12-13 17:59:14,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:59:14,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:59:14,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:59:14,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:59:14,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:59:14,625 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 291 [2022-12-13 17:59:14,626 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 36 transitions, 133 flow. Second operand has 6 states, 6 states have (on average 120.0) internal successors, (720), 6 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:14,626 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:59:14,627 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 291 [2022-12-13 17:59:14,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:59:15,828 INFO L130 PetriNetUnfolder]: 9341/13383 cut-off events. [2022-12-13 17:59:15,828 INFO L131 PetriNetUnfolder]: For 3392/3955 co-relation queries the response was YES. [2022-12-13 17:59:15,842 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30220 conditions, 13383 events. 9341/13383 cut-off events. For 3392/3955 co-relation queries the response was YES. Maximal size of possible extension queue 615. Compared 76389 event pairs, 3462 based on Foata normal form. 391/13479 useless extension candidates. Maximal degree in co-relation 30214. Up to 12234 conditions per place. [2022-12-13 17:59:15,867 INFO L137 encePairwiseOnDemand]: 286/291 looper letters, 40 selfloop transitions, 4 changer transitions 0/52 dead transitions. [2022-12-13 17:59:15,868 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 52 transitions, 245 flow [2022-12-13 17:59:15,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 17:59:15,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 17:59:15,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 751 transitions. [2022-12-13 17:59:15,869 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43012600229095077 [2022-12-13 17:59:15,869 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 751 transitions. [2022-12-13 17:59:15,869 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 751 transitions. [2022-12-13 17:59:15,870 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:59:15,870 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 751 transitions. [2022-12-13 17:59:15,871 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 125.16666666666667) internal successors, (751), 6 states have internal predecessors, (751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:15,873 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 291.0) internal successors, (2037), 7 states have internal predecessors, (2037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:15,873 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 291.0) internal successors, (2037), 7 states have internal predecessors, (2037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:15,873 INFO L175 Difference]: Start difference. First operand has 47 places, 36 transitions, 133 flow. Second operand 6 states and 751 transitions. [2022-12-13 17:59:15,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 52 transitions, 245 flow [2022-12-13 17:59:15,875 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 52 transitions, 233 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-12-13 17:59:15,875 INFO L231 Difference]: Finished difference. Result has 46 places, 34 transitions, 117 flow [2022-12-13 17:59:15,875 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=291, PETRI_DIFFERENCE_MINUEND_FLOW=109, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=117, PETRI_PLACES=46, PETRI_TRANSITIONS=34} [2022-12-13 17:59:15,876 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -6 predicate places. [2022-12-13 17:59:15,876 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 34 transitions, 117 flow [2022-12-13 17:59:15,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 120.0) internal successors, (720), 6 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:15,876 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:59:15,876 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:59:15,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 17:59:15,877 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:59:15,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:59:15,877 INFO L85 PathProgramCache]: Analyzing trace with hash -228368945, now seen corresponding path program 1 times [2022-12-13 17:59:15,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:59:15,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087081734] [2022-12-13 17:59:15,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:59:15,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:59:15,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:15,980 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 17:59:15,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:59:15,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087081734] [2022-12-13 17:59:15,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087081734] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:59:15,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:59:15,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:59:15,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936938122] [2022-12-13 17:59:15,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:59:15,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:59:15,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:59:15,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:59:15,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:59:15,993 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 291 [2022-12-13 17:59:15,994 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 34 transitions, 117 flow. Second operand has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:15,994 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:59:15,994 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 291 [2022-12-13 17:59:15,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:59:17,067 INFO L130 PetriNetUnfolder]: 8196/12159 cut-off events. [2022-12-13 17:59:17,068 INFO L131 PetriNetUnfolder]: For 1828/2191 co-relation queries the response was YES. [2022-12-13 17:59:17,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27038 conditions, 12159 events. 8196/12159 cut-off events. For 1828/2191 co-relation queries the response was YES. Maximal size of possible extension queue 626. Compared 75306 event pairs, 1553 based on Foata normal form. 919/12816 useless extension candidates. Maximal degree in co-relation 27032. Up to 5222 conditions per place. [2022-12-13 17:59:17,097 INFO L137 encePairwiseOnDemand]: 284/291 looper letters, 57 selfloop transitions, 6 changer transitions 0/71 dead transitions. [2022-12-13 17:59:17,097 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 71 transitions, 346 flow [2022-12-13 17:59:17,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:59:17,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 17:59:17,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 579 transitions. [2022-12-13 17:59:17,099 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49742268041237114 [2022-12-13 17:59:17,099 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 579 transitions. [2022-12-13 17:59:17,099 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 579 transitions. [2022-12-13 17:59:17,099 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:59:17,099 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 579 transitions. [2022-12-13 17:59:17,100 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 144.75) internal successors, (579), 4 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:17,101 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 291.0) internal successors, (1455), 5 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:17,101 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 291.0) internal successors, (1455), 5 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:17,101 INFO L175 Difference]: Start difference. First operand has 46 places, 34 transitions, 117 flow. Second operand 4 states and 579 transitions. [2022-12-13 17:59:17,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 71 transitions, 346 flow [2022-12-13 17:59:17,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 71 transitions, 334 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 17:59:17,103 INFO L231 Difference]: Finished difference. Result has 47 places, 39 transitions, 156 flow [2022-12-13 17:59:17,103 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=291, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=156, PETRI_PLACES=47, PETRI_TRANSITIONS=39} [2022-12-13 17:59:17,103 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -5 predicate places. [2022-12-13 17:59:17,103 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 39 transitions, 156 flow [2022-12-13 17:59:17,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:17,104 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:59:17,104 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:59:17,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 17:59:17,104 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:59:17,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:59:17,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1301936397, now seen corresponding path program 1 times [2022-12-13 17:59:17,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:59:17,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714377214] [2022-12-13 17:59:17,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:59:17,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:59:17,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:17,247 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 17:59:17,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:59:17,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714377214] [2022-12-13 17:59:17,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714377214] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:59:17,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:59:17,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 17:59:17,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043092976] [2022-12-13 17:59:17,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:59:17,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 17:59:17,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:59:17,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 17:59:17,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:59:17,257 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 291 [2022-12-13 17:59:17,258 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 156 flow. Second operand has 5 states, 5 states have (on average 133.0) internal successors, (665), 5 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:17,258 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:59:17,258 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 291 [2022-12-13 17:59:17,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:59:18,219 INFO L130 PetriNetUnfolder]: 6489/9939 cut-off events. [2022-12-13 17:59:18,219 INFO L131 PetriNetUnfolder]: For 4217/4434 co-relation queries the response was YES. [2022-12-13 17:59:18,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27296 conditions, 9939 events. 6489/9939 cut-off events. For 4217/4434 co-relation queries the response was YES. Maximal size of possible extension queue 512. Compared 62833 event pairs, 1453 based on Foata normal form. 615/10310 useless extension candidates. Maximal degree in co-relation 27288. Up to 3745 conditions per place. [2022-12-13 17:59:18,253 INFO L137 encePairwiseOnDemand]: 284/291 looper letters, 73 selfloop transitions, 10 changer transitions 0/91 dead transitions. [2022-12-13 17:59:18,254 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 91 transitions, 483 flow [2022-12-13 17:59:18,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 17:59:18,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 17:59:18,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 727 transitions. [2022-12-13 17:59:18,256 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49965635738831615 [2022-12-13 17:59:18,256 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 727 transitions. [2022-12-13 17:59:18,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 727 transitions. [2022-12-13 17:59:18,256 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:59:18,257 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 727 transitions. [2022-12-13 17:59:18,258 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 145.4) internal successors, (727), 5 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:18,259 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 291.0) internal successors, (1746), 6 states have internal predecessors, (1746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:18,259 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 291.0) internal successors, (1746), 6 states have internal predecessors, (1746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:18,259 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 156 flow. Second operand 5 states and 727 transitions. [2022-12-13 17:59:18,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 91 transitions, 483 flow [2022-12-13 17:59:18,263 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 91 transitions, 480 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 17:59:18,264 INFO L231 Difference]: Finished difference. Result has 52 places, 44 transitions, 221 flow [2022-12-13 17:59:18,264 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=291, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=221, PETRI_PLACES=52, PETRI_TRANSITIONS=44} [2022-12-13 17:59:18,264 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 0 predicate places. [2022-12-13 17:59:18,264 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 44 transitions, 221 flow [2022-12-13 17:59:18,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 133.0) internal successors, (665), 5 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:18,265 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:59:18,265 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:59:18,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 17:59:18,265 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:59:18,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:59:18,265 INFO L85 PathProgramCache]: Analyzing trace with hash -627905813, now seen corresponding path program 1 times [2022-12-13 17:59:18,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:59:18,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294987740] [2022-12-13 17:59:18,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:59:18,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:59:18,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:18,626 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 17:59:18,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:59:18,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294987740] [2022-12-13 17:59:18,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294987740] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:59:18,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:59:18,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 17:59:18,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482782110] [2022-12-13 17:59:18,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:59:18,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 17:59:18,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:59:18,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 17:59:18,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:59:18,663 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 291 [2022-12-13 17:59:18,664 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 44 transitions, 221 flow. Second operand has 5 states, 5 states have (on average 127.0) internal successors, (635), 5 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:18,664 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:59:18,664 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 291 [2022-12-13 17:59:18,664 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:59:20,887 INFO L130 PetriNetUnfolder]: 15199/22064 cut-off events. [2022-12-13 17:59:20,888 INFO L131 PetriNetUnfolder]: For 34481/34481 co-relation queries the response was YES. [2022-12-13 17:59:20,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72196 conditions, 22064 events. 15199/22064 cut-off events. For 34481/34481 co-relation queries the response was YES. Maximal size of possible extension queue 844. Compared 136352 event pairs, 1669 based on Foata normal form. 56/22120 useless extension candidates. Maximal degree in co-relation 72186. Up to 8712 conditions per place. [2022-12-13 17:59:20,943 INFO L137 encePairwiseOnDemand]: 277/291 looper letters, 142 selfloop transitions, 41 changer transitions 15/198 dead transitions. [2022-12-13 17:59:20,943 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 198 transitions, 1422 flow [2022-12-13 17:59:20,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 17:59:20,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 17:59:20,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1002 transitions. [2022-12-13 17:59:20,946 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49189985272459497 [2022-12-13 17:59:20,946 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1002 transitions. [2022-12-13 17:59:20,946 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1002 transitions. [2022-12-13 17:59:20,947 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:59:20,947 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1002 transitions. [2022-12-13 17:59:20,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 143.14285714285714) internal successors, (1002), 7 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:20,950 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 291.0) internal successors, (2328), 8 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:20,950 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 291.0) internal successors, (2328), 8 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:20,951 INFO L175 Difference]: Start difference. First operand has 52 places, 44 transitions, 221 flow. Second operand 7 states and 1002 transitions. [2022-12-13 17:59:20,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 198 transitions, 1422 flow [2022-12-13 17:59:20,964 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 198 transitions, 1348 flow, removed 22 selfloop flow, removed 2 redundant places. [2022-12-13 17:59:20,966 INFO L231 Difference]: Finished difference. Result has 60 places, 82 transitions, 522 flow [2022-12-13 17:59:20,966 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=291, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=522, PETRI_PLACES=60, PETRI_TRANSITIONS=82} [2022-12-13 17:59:20,967 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 8 predicate places. [2022-12-13 17:59:20,967 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 82 transitions, 522 flow [2022-12-13 17:59:20,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 127.0) internal successors, (635), 5 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:20,967 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:59:20,967 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:59:20,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 17:59:20,967 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:59:20,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:59:20,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1891006629, now seen corresponding path program 2 times [2022-12-13 17:59:20,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:59:20,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118299105] [2022-12-13 17:59:20,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:59:20,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:59:21,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:21,124 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 17:59:21,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:59:21,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118299105] [2022-12-13 17:59:21,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118299105] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:59:21,125 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:59:21,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 17:59:21,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187546244] [2022-12-13 17:59:21,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:59:21,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:59:21,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:59:21,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:59:21,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:59:21,135 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 291 [2022-12-13 17:59:21,135 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 82 transitions, 522 flow. Second operand has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:21,136 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:59:21,136 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 291 [2022-12-13 17:59:21,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:59:21,746 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([449] L831-->L847: Formula: (let ((.cse11 (= (mod v_~b$r_buff1_thd4~0_60 256) 0)) (.cse7 (= (mod v_~b$r_buff0_thd4~0_62 256) 0))) (let ((.cse9 (not .cse7)) (.cse2 (and .cse7 .cse11)) (.cse12 (= (mod v_~b$w_buff0_used~0_152 256) 0)) (.cse4 (and .cse7 (= (mod v_~b$w_buff1_used~0_133 256) 0)))) (let ((.cse5 (or .cse2 .cse12 .cse4)) (.cse6 (and .cse9 (not .cse12)))) (let ((.cse0 (ite .cse5 v_~b~0_93 (ite .cse6 v_~b$w_buff0~0_61 v_~b$w_buff1~0_64))) (.cse1 (not (= (mod v_~weak$$choice2~0_30 256) 0))) (.cse3 (= (mod v_~b$w_buff0_used~0_151 256) 0)) (.cse8 (= (mod v_~b$w_buff1_used~0_132 256) 0))) (and (= v_~weak$$choice0~0_5 |v_P3Thread1of1ForFork1_#t~nondet3_1|) (= v_~b$w_buff0~0_61 v_~b$w_buff0~0_60) (= v_~b$flush_delayed~0_25 0) (= .cse0 v_~__unbuffered_p3_EBX~0_10) (= v_~weak$$choice2~0_30 |v_P3Thread1of1ForFork1_#t~nondet4_1|) (= (ite .cse1 v_~b$w_buff1_used~0_133 (ite (or .cse2 .cse3 .cse4) v_~b$w_buff1_used~0_133 0)) v_~b$w_buff1_used~0_132) (= v_~b$w_buff0_used~0_151 (ite .cse1 v_~b$w_buff0_used~0_152 (ite .cse5 v_~b$w_buff0_used~0_152 (ite .cse6 0 v_~b$w_buff0_used~0_152)))) (= v_~b$mem_tmp~0_18 v_~b~0_93) (= v_~b~0_92 (ite .cse1 v_~b$mem_tmp~0_18 .cse0)) (= v_~b$w_buff1~0_64 v_~b$w_buff1~0_63) (= (ite .cse1 v_~b$r_buff0_thd4~0_62 (ite (or (and .cse7 .cse8) .cse2 .cse3) v_~b$r_buff0_thd4~0_62 (ite (and .cse9 (not .cse3)) 0 v_~b$r_buff0_thd4~0_62))) v_~b$r_buff0_thd4~0_61) (= (ite .cse1 v_~b$r_buff1_thd4~0_60 (ite (let ((.cse10 (= (mod v_~b$r_buff0_thd4~0_61 256) 0))) (or .cse3 (and .cse10 .cse8) (and .cse10 .cse11))) v_~b$r_buff1_thd4~0_60 0)) v_~b$r_buff1_thd4~0_59)))))) InVars {~b$w_buff0_used~0=v_~b$w_buff0_used~0_152, ~b~0=v_~b~0_93, ~b$w_buff1_used~0=v_~b$w_buff1_used~0_133, ~b$r_buff1_thd4~0=v_~b$r_buff1_thd4~0_60, ~b$w_buff1~0=v_~b$w_buff1~0_64, ~b$w_buff0~0=v_~b$w_buff0~0_61, ~b$r_buff0_thd4~0=v_~b$r_buff0_thd4~0_62, P3Thread1of1ForFork1_#t~nondet3=|v_P3Thread1of1ForFork1_#t~nondet3_1|, P3Thread1of1ForFork1_#t~nondet4=|v_P3Thread1of1ForFork1_#t~nondet4_1|} OutVars{~b$mem_tmp~0=v_~b$mem_tmp~0_18, ~b$flush_delayed~0=v_~b$flush_delayed~0_25, ~__unbuffered_p3_EBX~0=v_~__unbuffered_p3_EBX~0_10, ~b$w_buff0_used~0=v_~b$w_buff0_used~0_151, ~weak$$choice0~0=v_~weak$$choice0~0_5, ~b~0=v_~b~0_92, ~b$w_buff1_used~0=v_~b$w_buff1_used~0_132, ~b$r_buff1_thd4~0=v_~b$r_buff1_thd4~0_59, ~b$w_buff1~0=v_~b$w_buff1~0_63, ~b$w_buff0~0=v_~b$w_buff0~0_60, ~weak$$choice2~0=v_~weak$$choice2~0_30, ~b$r_buff0_thd4~0=v_~b$r_buff0_thd4~0_61} AuxVars[] AssignedVars[~b$mem_tmp~0, ~b$flush_delayed~0, ~__unbuffered_p3_EBX~0, ~b$w_buff0_used~0, ~weak$$choice0~0, ~b~0, ~b$w_buff1_used~0, ~b$r_buff1_thd4~0, ~b$w_buff1~0, ~b$w_buff0~0, ~weak$$choice2~0, ~b$r_buff0_thd4~0, P3Thread1of1ForFork1_#t~nondet3, P3Thread1of1ForFork1_#t~nondet4][91], [P1Thread1of1ForFork0InUse, Black: 221#(and (= ~b$r_buff0_thd1~0 1) (<= (div ~b$w_buff0_used~0 256) 0) (or (not (= ~__unbuffered_p1_EAX~0 0)) (not (= ~__unbuffered_p3_EAX~0 1)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= ~__unbuffered_p0_EAX~0 0)) (not (= 2 ~z~0))) (= ~b$w_buff0~0 1) (<= 1 ~b$w_buff0_used~0)), P3Thread1of1ForFork1InUse, Black: 223#(and (<= ~b$w_buff0_used~0 (* (div ~b$w_buff0_used~0 256) 256)) (< 0 (+ (div ~b$w_buff0_used~0 256) 1)) (or (not (= ~__unbuffered_p1_EAX~0 0)) (not (= ~__unbuffered_p3_EAX~0 1)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= ~__unbuffered_p0_EAX~0 0)) (not (= 2 ~z~0))) (= ~b~0 1)), Black: 219#(or (not (= ~__unbuffered_p1_EAX~0 0)) (not (= ~__unbuffered_p3_EAX~0 1)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= ~__unbuffered_p0_EAX~0 0)) (not (= 2 ~z~0))), P0Thread1of1ForFork2InUse, Black: 217#(and (= ~b$r_buff0_thd1~0 1) (<= (div ~b$w_buff0_used~0 256) 0) (= ~b$w_buff0~0 1) (<= 1 ~b$w_buff0_used~0)), 192#(and (not (= |ULTIMATE.start_main_~#t1131~0#1.base| |ULTIMATE.start_main_~#t1130~0#1.base|)) (not (= |ULTIMATE.start_main_~#t1129~0#1.base| |ULTIMATE.start_main_~#t1132~0#1.base|)) (not (= |ULTIMATE.start_main_~#t1130~0#1.base| |ULTIMATE.start_main_~#t1129~0#1.base|)) (not (= |ULTIMATE.start_main_~#t1130~0#1.base| |ULTIMATE.start_main_~#t1132~0#1.base|)) (= (store (store (store (store |#valid| |ULTIMATE.start_main_~#t1130~0#1.base| 0) |ULTIMATE.start_main_~#t1131~0#1.base| 0) |ULTIMATE.start_main_~#t1129~0#1.base| 0) |ULTIMATE.start_main_~#t1132~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|) (not (= |ULTIMATE.start_main_~#t1131~0#1.base| |ULTIMATE.start_main_~#t1132~0#1.base|)) (not (= |ULTIMATE.start_main_~#t1131~0#1.base| |ULTIMATE.start_main_~#t1129~0#1.base|))), Black: 199#(and (= ~__unbuffered_cnt~0 0) (= ~main$tmp_guard0~0 (* (div ~main$tmp_guard0~0 256) 256))), 166#true, 215#true, 81#L847true, 197#(= ~main$tmp_guard0~0 (* (div ~main$tmp_guard0~0 256) 256)), 211#(and (= ~main$tmp_guard0~0 (* (div ~main$tmp_guard0~0 256) 256)) (<= ~__unbuffered_cnt~0 1)), Black: 175#(or (not (= ~__unbuffered_p1_EAX~0 0)) (not (= ~__unbuffered_p3_EAX~0 1)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= ~__unbuffered_p0_EAX~0 0)) (not (= 2 ~z~0))), 17#L788true, 156#L815true, 90#P0EXITtrue, Black: 207#(= ~main$tmp_guard0~0 (* (div ~main$tmp_guard0~0 256) 256)), Black: 184#(and (not (= |ULTIMATE.start_main_~#t1131~0#1.base| |ULTIMATE.start_main_~#t1130~0#1.base|)) (not (= |ULTIMATE.start_main_~#t1129~0#1.base| |ULTIMATE.start_main_~#t1132~0#1.base|)) (not (= |ULTIMATE.start_main_~#t1130~0#1.base| |ULTIMATE.start_main_~#t1129~0#1.base|)) (not (= ~__unbuffered_p3_EAX~0 1)) (not (= |ULTIMATE.start_main_~#t1130~0#1.base| |ULTIMATE.start_main_~#t1132~0#1.base|)) (= (store (store (store (store |#valid| |ULTIMATE.start_main_~#t1130~0#1.base| 0) |ULTIMATE.start_main_~#t1131~0#1.base| 0) |ULTIMATE.start_main_~#t1129~0#1.base| 0) |ULTIMATE.start_main_~#t1132~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|) (not (= |ULTIMATE.start_main_~#t1131~0#1.base| |ULTIMATE.start_main_~#t1132~0#1.base|)) (not (= |ULTIMATE.start_main_~#t1131~0#1.base| |ULTIMATE.start_main_~#t1129~0#1.base|))), 238#(and (= ~main$tmp_guard0~0 (* (div ~main$tmp_guard0~0 256) 256)) (<= ~__unbuffered_cnt~0 1)), 92#L878-3true, P2Thread1of1ForFork3InUse]) [2022-12-13 17:59:21,746 INFO L383 tUnfolder$Statistics]: this new event has 20 ancestors and is cut-off event [2022-12-13 17:59:21,746 INFO L386 tUnfolder$Statistics]: existing Event has 20 ancestors and is cut-off event [2022-12-13 17:59:21,746 INFO L386 tUnfolder$Statistics]: existing Event has 20 ancestors and is cut-off event [2022-12-13 17:59:21,746 INFO L386 tUnfolder$Statistics]: existing Event has 20 ancestors and is cut-off event [2022-12-13 17:59:21,827 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([449] L831-->L847: Formula: (let ((.cse11 (= (mod v_~b$r_buff1_thd4~0_60 256) 0)) (.cse7 (= (mod v_~b$r_buff0_thd4~0_62 256) 0))) (let ((.cse9 (not .cse7)) (.cse2 (and .cse7 .cse11)) (.cse12 (= (mod v_~b$w_buff0_used~0_152 256) 0)) (.cse4 (and .cse7 (= (mod v_~b$w_buff1_used~0_133 256) 0)))) (let ((.cse5 (or .cse2 .cse12 .cse4)) (.cse6 (and .cse9 (not .cse12)))) (let ((.cse0 (ite .cse5 v_~b~0_93 (ite .cse6 v_~b$w_buff0~0_61 v_~b$w_buff1~0_64))) (.cse1 (not (= (mod v_~weak$$choice2~0_30 256) 0))) (.cse3 (= (mod v_~b$w_buff0_used~0_151 256) 0)) (.cse8 (= (mod v_~b$w_buff1_used~0_132 256) 0))) (and (= v_~weak$$choice0~0_5 |v_P3Thread1of1ForFork1_#t~nondet3_1|) (= v_~b$w_buff0~0_61 v_~b$w_buff0~0_60) (= v_~b$flush_delayed~0_25 0) (= .cse0 v_~__unbuffered_p3_EBX~0_10) (= v_~weak$$choice2~0_30 |v_P3Thread1of1ForFork1_#t~nondet4_1|) (= (ite .cse1 v_~b$w_buff1_used~0_133 (ite (or .cse2 .cse3 .cse4) v_~b$w_buff1_used~0_133 0)) v_~b$w_buff1_used~0_132) (= v_~b$w_buff0_used~0_151 (ite .cse1 v_~b$w_buff0_used~0_152 (ite .cse5 v_~b$w_buff0_used~0_152 (ite .cse6 0 v_~b$w_buff0_used~0_152)))) (= v_~b$mem_tmp~0_18 v_~b~0_93) (= v_~b~0_92 (ite .cse1 v_~b$mem_tmp~0_18 .cse0)) (= v_~b$w_buff1~0_64 v_~b$w_buff1~0_63) (= (ite .cse1 v_~b$r_buff0_thd4~0_62 (ite (or (and .cse7 .cse8) .cse2 .cse3) v_~b$r_buff0_thd4~0_62 (ite (and .cse9 (not .cse3)) 0 v_~b$r_buff0_thd4~0_62))) v_~b$r_buff0_thd4~0_61) (= (ite .cse1 v_~b$r_buff1_thd4~0_60 (ite (let ((.cse10 (= (mod v_~b$r_buff0_thd4~0_61 256) 0))) (or .cse3 (and .cse10 .cse8) (and .cse10 .cse11))) v_~b$r_buff1_thd4~0_60 0)) v_~b$r_buff1_thd4~0_59)))))) InVars {~b$w_buff0_used~0=v_~b$w_buff0_used~0_152, ~b~0=v_~b~0_93, ~b$w_buff1_used~0=v_~b$w_buff1_used~0_133, ~b$r_buff1_thd4~0=v_~b$r_buff1_thd4~0_60, ~b$w_buff1~0=v_~b$w_buff1~0_64, ~b$w_buff0~0=v_~b$w_buff0~0_61, ~b$r_buff0_thd4~0=v_~b$r_buff0_thd4~0_62, P3Thread1of1ForFork1_#t~nondet3=|v_P3Thread1of1ForFork1_#t~nondet3_1|, P3Thread1of1ForFork1_#t~nondet4=|v_P3Thread1of1ForFork1_#t~nondet4_1|} OutVars{~b$mem_tmp~0=v_~b$mem_tmp~0_18, ~b$flush_delayed~0=v_~b$flush_delayed~0_25, ~__unbuffered_p3_EBX~0=v_~__unbuffered_p3_EBX~0_10, ~b$w_buff0_used~0=v_~b$w_buff0_used~0_151, ~weak$$choice0~0=v_~weak$$choice0~0_5, ~b~0=v_~b~0_92, ~b$w_buff1_used~0=v_~b$w_buff1_used~0_132, ~b$r_buff1_thd4~0=v_~b$r_buff1_thd4~0_59, ~b$w_buff1~0=v_~b$w_buff1~0_63, ~b$w_buff0~0=v_~b$w_buff0~0_60, ~weak$$choice2~0=v_~weak$$choice2~0_30, ~b$r_buff0_thd4~0=v_~b$r_buff0_thd4~0_61} AuxVars[] AssignedVars[~b$mem_tmp~0, ~b$flush_delayed~0, ~__unbuffered_p3_EBX~0, ~b$w_buff0_used~0, ~weak$$choice0~0, ~b~0, ~b$w_buff1_used~0, ~b$r_buff1_thd4~0, ~b$w_buff1~0, ~b$w_buff0~0, ~weak$$choice2~0, ~b$r_buff0_thd4~0, P3Thread1of1ForFork1_#t~nondet3, P3Thread1of1ForFork1_#t~nondet4][133], [P1Thread1of1ForFork0InUse, Black: 221#(and (= ~b$r_buff0_thd1~0 1) (<= (div ~b$w_buff0_used~0 256) 0) (or (not (= ~__unbuffered_p1_EAX~0 0)) (not (= ~__unbuffered_p3_EAX~0 1)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= ~__unbuffered_p0_EAX~0 0)) (not (= 2 ~z~0))) (= ~b$w_buff0~0 1) (<= 1 ~b$w_buff0_used~0)), P3Thread1of1ForFork1InUse, Black: 223#(and (<= ~b$w_buff0_used~0 (* (div ~b$w_buff0_used~0 256) 256)) (< 0 (+ (div ~b$w_buff0_used~0 256) 1)) (or (not (= ~__unbuffered_p1_EAX~0 0)) (not (= ~__unbuffered_p3_EAX~0 1)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= ~__unbuffered_p0_EAX~0 0)) (not (= 2 ~z~0))) (= ~b~0 1)), Black: 219#(or (not (= ~__unbuffered_p1_EAX~0 0)) (not (= ~__unbuffered_p3_EAX~0 1)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= ~__unbuffered_p0_EAX~0 0)) (not (= 2 ~z~0))), P0Thread1of1ForFork2InUse, 240#(and (= ~main$tmp_guard0~0 (* (div ~main$tmp_guard0~0 256) 256)) (<= ~__unbuffered_cnt~0 2)), Black: 217#(and (= ~b$r_buff0_thd1~0 1) (<= (div ~b$w_buff0_used~0 256) 0) (= ~b$w_buff0~0 1) (<= 1 ~b$w_buff0_used~0)), 192#(and (not (= |ULTIMATE.start_main_~#t1131~0#1.base| |ULTIMATE.start_main_~#t1130~0#1.base|)) (not (= |ULTIMATE.start_main_~#t1129~0#1.base| |ULTIMATE.start_main_~#t1132~0#1.base|)) (not (= |ULTIMATE.start_main_~#t1130~0#1.base| |ULTIMATE.start_main_~#t1129~0#1.base|)) (not (= |ULTIMATE.start_main_~#t1130~0#1.base| |ULTIMATE.start_main_~#t1132~0#1.base|)) (= (store (store (store (store |#valid| |ULTIMATE.start_main_~#t1130~0#1.base| 0) |ULTIMATE.start_main_~#t1131~0#1.base| 0) |ULTIMATE.start_main_~#t1129~0#1.base| 0) |ULTIMATE.start_main_~#t1132~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|) (not (= |ULTIMATE.start_main_~#t1131~0#1.base| |ULTIMATE.start_main_~#t1132~0#1.base|)) (not (= |ULTIMATE.start_main_~#t1131~0#1.base| |ULTIMATE.start_main_~#t1129~0#1.base|))), Black: 199#(and (= ~__unbuffered_cnt~0 0) (= ~main$tmp_guard0~0 (* (div ~main$tmp_guard0~0 256) 256))), 166#true, 215#true, 81#L847true, 197#(= ~main$tmp_guard0~0 (* (div ~main$tmp_guard0~0 256) 256)), Black: 175#(or (not (= ~__unbuffered_p1_EAX~0 0)) (not (= ~__unbuffered_p3_EAX~0 1)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= ~__unbuffered_p0_EAX~0 0)) (not (= 2 ~z~0))), 17#L788true, 74#P2EXITtrue, Black: 211#(and (= ~main$tmp_guard0~0 (* (div ~main$tmp_guard0~0 256) 256)) (<= ~__unbuffered_cnt~0 1)), 90#P0EXITtrue, Black: 184#(and (not (= |ULTIMATE.start_main_~#t1131~0#1.base| |ULTIMATE.start_main_~#t1130~0#1.base|)) (not (= |ULTIMATE.start_main_~#t1129~0#1.base| |ULTIMATE.start_main_~#t1132~0#1.base|)) (not (= |ULTIMATE.start_main_~#t1130~0#1.base| |ULTIMATE.start_main_~#t1129~0#1.base|)) (not (= ~__unbuffered_p3_EAX~0 1)) (not (= |ULTIMATE.start_main_~#t1130~0#1.base| |ULTIMATE.start_main_~#t1132~0#1.base|)) (= (store (store (store (store |#valid| |ULTIMATE.start_main_~#t1130~0#1.base| 0) |ULTIMATE.start_main_~#t1131~0#1.base| 0) |ULTIMATE.start_main_~#t1129~0#1.base| 0) |ULTIMATE.start_main_~#t1132~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|) (not (= |ULTIMATE.start_main_~#t1131~0#1.base| |ULTIMATE.start_main_~#t1132~0#1.base|)) (not (= |ULTIMATE.start_main_~#t1131~0#1.base| |ULTIMATE.start_main_~#t1129~0#1.base|))), 207#(= ~main$tmp_guard0~0 (* (div ~main$tmp_guard0~0 256) 256)), 92#L878-3true, P2Thread1of1ForFork3InUse]) [2022-12-13 17:59:21,828 INFO L383 tUnfolder$Statistics]: this new event has 21 ancestors and is cut-off event [2022-12-13 17:59:21,828 INFO L386 tUnfolder$Statistics]: existing Event has 21 ancestors and is cut-off event [2022-12-13 17:59:21,828 INFO L386 tUnfolder$Statistics]: existing Event has 21 ancestors and is cut-off event [2022-12-13 17:59:21,828 INFO L386 tUnfolder$Statistics]: existing Event has 21 ancestors and is cut-off event [2022-12-13 17:59:21,904 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([449] L831-->L847: Formula: (let ((.cse11 (= (mod v_~b$r_buff1_thd4~0_60 256) 0)) (.cse7 (= (mod v_~b$r_buff0_thd4~0_62 256) 0))) (let ((.cse9 (not .cse7)) (.cse2 (and .cse7 .cse11)) (.cse12 (= (mod v_~b$w_buff0_used~0_152 256) 0)) (.cse4 (and .cse7 (= (mod v_~b$w_buff1_used~0_133 256) 0)))) (let ((.cse5 (or .cse2 .cse12 .cse4)) (.cse6 (and .cse9 (not .cse12)))) (let ((.cse0 (ite .cse5 v_~b~0_93 (ite .cse6 v_~b$w_buff0~0_61 v_~b$w_buff1~0_64))) (.cse1 (not (= (mod v_~weak$$choice2~0_30 256) 0))) (.cse3 (= (mod v_~b$w_buff0_used~0_151 256) 0)) (.cse8 (= (mod v_~b$w_buff1_used~0_132 256) 0))) (and (= v_~weak$$choice0~0_5 |v_P3Thread1of1ForFork1_#t~nondet3_1|) (= v_~b$w_buff0~0_61 v_~b$w_buff0~0_60) (= v_~b$flush_delayed~0_25 0) (= .cse0 v_~__unbuffered_p3_EBX~0_10) (= v_~weak$$choice2~0_30 |v_P3Thread1of1ForFork1_#t~nondet4_1|) (= (ite .cse1 v_~b$w_buff1_used~0_133 (ite (or .cse2 .cse3 .cse4) v_~b$w_buff1_used~0_133 0)) v_~b$w_buff1_used~0_132) (= v_~b$w_buff0_used~0_151 (ite .cse1 v_~b$w_buff0_used~0_152 (ite .cse5 v_~b$w_buff0_used~0_152 (ite .cse6 0 v_~b$w_buff0_used~0_152)))) (= v_~b$mem_tmp~0_18 v_~b~0_93) (= v_~b~0_92 (ite .cse1 v_~b$mem_tmp~0_18 .cse0)) (= v_~b$w_buff1~0_64 v_~b$w_buff1~0_63) (= (ite .cse1 v_~b$r_buff0_thd4~0_62 (ite (or (and .cse7 .cse8) .cse2 .cse3) v_~b$r_buff0_thd4~0_62 (ite (and .cse9 (not .cse3)) 0 v_~b$r_buff0_thd4~0_62))) v_~b$r_buff0_thd4~0_61) (= (ite .cse1 v_~b$r_buff1_thd4~0_60 (ite (let ((.cse10 (= (mod v_~b$r_buff0_thd4~0_61 256) 0))) (or .cse3 (and .cse10 .cse8) (and .cse10 .cse11))) v_~b$r_buff1_thd4~0_60 0)) v_~b$r_buff1_thd4~0_59)))))) InVars {~b$w_buff0_used~0=v_~b$w_buff0_used~0_152, ~b~0=v_~b~0_93, ~b$w_buff1_used~0=v_~b$w_buff1_used~0_133, ~b$r_buff1_thd4~0=v_~b$r_buff1_thd4~0_60, ~b$w_buff1~0=v_~b$w_buff1~0_64, ~b$w_buff0~0=v_~b$w_buff0~0_61, ~b$r_buff0_thd4~0=v_~b$r_buff0_thd4~0_62, P3Thread1of1ForFork1_#t~nondet3=|v_P3Thread1of1ForFork1_#t~nondet3_1|, P3Thread1of1ForFork1_#t~nondet4=|v_P3Thread1of1ForFork1_#t~nondet4_1|} OutVars{~b$mem_tmp~0=v_~b$mem_tmp~0_18, ~b$flush_delayed~0=v_~b$flush_delayed~0_25, ~__unbuffered_p3_EBX~0=v_~__unbuffered_p3_EBX~0_10, ~b$w_buff0_used~0=v_~b$w_buff0_used~0_151, ~weak$$choice0~0=v_~weak$$choice0~0_5, ~b~0=v_~b~0_92, ~b$w_buff1_used~0=v_~b$w_buff1_used~0_132, ~b$r_buff1_thd4~0=v_~b$r_buff1_thd4~0_59, ~b$w_buff1~0=v_~b$w_buff1~0_63, ~b$w_buff0~0=v_~b$w_buff0~0_60, ~weak$$choice2~0=v_~weak$$choice2~0_30, ~b$r_buff0_thd4~0=v_~b$r_buff0_thd4~0_61} AuxVars[] AssignedVars[~b$mem_tmp~0, ~b$flush_delayed~0, ~__unbuffered_p3_EBX~0, ~b$w_buff0_used~0, ~weak$$choice0~0, ~b~0, ~b$w_buff1_used~0, ~b$r_buff1_thd4~0, ~b$w_buff1~0, ~b$w_buff0~0, ~weak$$choice2~0, ~b$r_buff0_thd4~0, P3Thread1of1ForFork1_#t~nondet3, P3Thread1of1ForFork1_#t~nondet4][133], [P1Thread1of1ForFork0InUse, Black: 221#(and (= ~b$r_buff0_thd1~0 1) (<= (div ~b$w_buff0_used~0 256) 0) (or (not (= ~__unbuffered_p1_EAX~0 0)) (not (= ~__unbuffered_p3_EAX~0 1)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= ~__unbuffered_p0_EAX~0 0)) (not (= 2 ~z~0))) (= ~b$w_buff0~0 1) (<= 1 ~b$w_buff0_used~0)), P3Thread1of1ForFork1InUse, Black: 223#(and (<= ~b$w_buff0_used~0 (* (div ~b$w_buff0_used~0 256) 256)) (< 0 (+ (div ~b$w_buff0_used~0 256) 1)) (or (not (= ~__unbuffered_p1_EAX~0 0)) (not (= ~__unbuffered_p3_EAX~0 1)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= ~__unbuffered_p0_EAX~0 0)) (not (= 2 ~z~0))) (= ~b~0 1)), Black: 219#(or (not (= ~__unbuffered_p1_EAX~0 0)) (not (= ~__unbuffered_p3_EAX~0 1)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= ~__unbuffered_p0_EAX~0 0)) (not (= 2 ~z~0))), P0Thread1of1ForFork2InUse, 240#(and (= ~main$tmp_guard0~0 (* (div ~main$tmp_guard0~0 256) 256)) (<= ~__unbuffered_cnt~0 2)), Black: 217#(and (= ~b$r_buff0_thd1~0 1) (<= (div ~b$w_buff0_used~0 256) 0) (= ~b$w_buff0~0 1) (<= 1 ~b$w_buff0_used~0)), 192#(and (not (= |ULTIMATE.start_main_~#t1131~0#1.base| |ULTIMATE.start_main_~#t1130~0#1.base|)) (not (= |ULTIMATE.start_main_~#t1129~0#1.base| |ULTIMATE.start_main_~#t1132~0#1.base|)) (not (= |ULTIMATE.start_main_~#t1130~0#1.base| |ULTIMATE.start_main_~#t1129~0#1.base|)) (not (= |ULTIMATE.start_main_~#t1130~0#1.base| |ULTIMATE.start_main_~#t1132~0#1.base|)) (= (store (store (store (store |#valid| |ULTIMATE.start_main_~#t1130~0#1.base| 0) |ULTIMATE.start_main_~#t1131~0#1.base| 0) |ULTIMATE.start_main_~#t1129~0#1.base| 0) |ULTIMATE.start_main_~#t1132~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|) (not (= |ULTIMATE.start_main_~#t1131~0#1.base| |ULTIMATE.start_main_~#t1132~0#1.base|)) (not (= |ULTIMATE.start_main_~#t1131~0#1.base| |ULTIMATE.start_main_~#t1129~0#1.base|))), Black: 199#(and (= ~__unbuffered_cnt~0 0) (= ~main$tmp_guard0~0 (* (div ~main$tmp_guard0~0 256) 256))), 166#true, Black: 197#(= ~main$tmp_guard0~0 (* (div ~main$tmp_guard0~0 256) 256)), 215#true, 81#L847true, Black: 175#(or (not (= ~__unbuffered_p1_EAX~0 0)) (not (= ~__unbuffered_p3_EAX~0 1)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= ~__unbuffered_p0_EAX~0 0)) (not (= 2 ~z~0))), 17#L788true, 74#P2EXITtrue, Black: 211#(and (= ~main$tmp_guard0~0 (* (div ~main$tmp_guard0~0 256) 256)) (<= ~__unbuffered_cnt~0 1)), 90#P0EXITtrue, Black: 207#(= ~main$tmp_guard0~0 (* (div ~main$tmp_guard0~0 256) 256)), Black: 184#(and (not (= |ULTIMATE.start_main_~#t1131~0#1.base| |ULTIMATE.start_main_~#t1130~0#1.base|)) (not (= |ULTIMATE.start_main_~#t1129~0#1.base| |ULTIMATE.start_main_~#t1132~0#1.base|)) (not (= |ULTIMATE.start_main_~#t1130~0#1.base| |ULTIMATE.start_main_~#t1129~0#1.base|)) (not (= ~__unbuffered_p3_EAX~0 1)) (not (= |ULTIMATE.start_main_~#t1130~0#1.base| |ULTIMATE.start_main_~#t1132~0#1.base|)) (= (store (store (store (store |#valid| |ULTIMATE.start_main_~#t1130~0#1.base| 0) |ULTIMATE.start_main_~#t1131~0#1.base| 0) |ULTIMATE.start_main_~#t1129~0#1.base| 0) |ULTIMATE.start_main_~#t1132~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|) (not (= |ULTIMATE.start_main_~#t1131~0#1.base| |ULTIMATE.start_main_~#t1132~0#1.base|)) (not (= |ULTIMATE.start_main_~#t1131~0#1.base| |ULTIMATE.start_main_~#t1129~0#1.base|))), 121#L881true, P2Thread1of1ForFork3InUse]) [2022-12-13 17:59:21,904 INFO L383 tUnfolder$Statistics]: this new event has 22 ancestors and is cut-off event [2022-12-13 17:59:21,905 INFO L386 tUnfolder$Statistics]: existing Event has 22 ancestors and is cut-off event [2022-12-13 17:59:21,905 INFO L386 tUnfolder$Statistics]: existing Event has 22 ancestors and is cut-off event [2022-12-13 17:59:21,905 INFO L386 tUnfolder$Statistics]: existing Event has 22 ancestors and is cut-off event [2022-12-13 17:59:22,084 INFO L130 PetriNetUnfolder]: 5018/7892 cut-off events. [2022-12-13 17:59:22,084 INFO L131 PetriNetUnfolder]: For 14646/15306 co-relation queries the response was YES. [2022-12-13 17:59:22,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29308 conditions, 7892 events. 5018/7892 cut-off events. For 14646/15306 co-relation queries the response was YES. Maximal size of possible extension queue 351. Compared 49347 event pairs, 544 based on Foata normal form. 772/8508 useless extension candidates. Maximal degree in co-relation 29294. Up to 2681 conditions per place. [2022-12-13 17:59:22,120 INFO L137 encePairwiseOnDemand]: 284/291 looper letters, 169 selfloop transitions, 14 changer transitions 15/217 dead transitions. [2022-12-13 17:59:22,120 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 217 transitions, 1594 flow [2022-12-13 17:59:22,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 17:59:22,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 17:59:22,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 871 transitions. [2022-12-13 17:59:22,122 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4988545246277205 [2022-12-13 17:59:22,122 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 871 transitions. [2022-12-13 17:59:22,122 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 871 transitions. [2022-12-13 17:59:22,122 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:59:22,122 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 871 transitions. [2022-12-13 17:59:22,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 145.16666666666666) internal successors, (871), 6 states have internal predecessors, (871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:22,125 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 291.0) internal successors, (2037), 7 states have internal predecessors, (2037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:22,125 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 291.0) internal successors, (2037), 7 states have internal predecessors, (2037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:22,125 INFO L175 Difference]: Start difference. First operand has 60 places, 82 transitions, 522 flow. Second operand 6 states and 871 transitions. [2022-12-13 17:59:22,125 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 217 transitions, 1594 flow [2022-12-13 17:59:22,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 217 transitions, 1552 flow, removed 12 selfloop flow, removed 3 redundant places. [2022-12-13 17:59:22,276 INFO L231 Difference]: Finished difference. Result has 64 places, 86 transitions, 571 flow [2022-12-13 17:59:22,276 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=291, PETRI_DIFFERENCE_MINUEND_FLOW=483, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=571, PETRI_PLACES=64, PETRI_TRANSITIONS=86} [2022-12-13 17:59:22,277 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 12 predicate places. [2022-12-13 17:59:22,277 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 86 transitions, 571 flow [2022-12-13 17:59:22,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:22,277 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:59:22,277 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:59:22,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 17:59:22,277 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:59:22,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:59:22,278 INFO L85 PathProgramCache]: Analyzing trace with hash 2017099290, now seen corresponding path program 1 times [2022-12-13 17:59:22,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:59:22,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766602301] [2022-12-13 17:59:22,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:59:22,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:59:22,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:22,393 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 17:59:22,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:59:22,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766602301] [2022-12-13 17:59:22,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766602301] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:59:22,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:59:22,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:59:22,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089633080] [2022-12-13 17:59:22,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:59:22,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:59:22,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:59:22,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:59:22,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:59:22,407 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 291 [2022-12-13 17:59:22,407 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 86 transitions, 571 flow. Second operand has 4 states, 4 states have (on average 133.25) internal successors, (533), 4 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:22,407 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:59:22,408 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 291 [2022-12-13 17:59:22,408 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:59:23,544 INFO L130 PetriNetUnfolder]: 8272/12474 cut-off events. [2022-12-13 17:59:23,544 INFO L131 PetriNetUnfolder]: For 26034/26034 co-relation queries the response was YES. [2022-12-13 17:59:23,568 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50097 conditions, 12474 events. 8272/12474 cut-off events. For 26034/26034 co-relation queries the response was YES. Maximal size of possible extension queue 451. Compared 73391 event pairs, 1344 based on Foata normal form. 18/12492 useless extension candidates. Maximal degree in co-relation 50082. Up to 6967 conditions per place. [2022-12-13 17:59:23,588 INFO L137 encePairwiseOnDemand]: 285/291 looper letters, 106 selfloop transitions, 14 changer transitions 32/152 dead transitions. [2022-12-13 17:59:23,588 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 152 transitions, 1289 flow [2022-12-13 17:59:23,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:59:23,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 17:59:23,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 569 transitions. [2022-12-13 17:59:23,590 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4888316151202749 [2022-12-13 17:59:23,590 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 569 transitions. [2022-12-13 17:59:23,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 569 transitions. [2022-12-13 17:59:23,590 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:59:23,590 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 569 transitions. [2022-12-13 17:59:23,591 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 142.25) internal successors, (569), 4 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:23,593 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 291.0) internal successors, (1455), 5 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:23,593 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 291.0) internal successors, (1455), 5 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:23,593 INFO L175 Difference]: Start difference. First operand has 64 places, 86 transitions, 571 flow. Second operand 4 states and 569 transitions. [2022-12-13 17:59:23,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 152 transitions, 1289 flow [2022-12-13 17:59:23,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 152 transitions, 1229 flow, removed 16 selfloop flow, removed 3 redundant places. [2022-12-13 17:59:23,801 INFO L231 Difference]: Finished difference. Result has 66 places, 81 transitions, 553 flow [2022-12-13 17:59:23,801 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=291, PETRI_DIFFERENCE_MINUEND_FLOW=540, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=553, PETRI_PLACES=66, PETRI_TRANSITIONS=81} [2022-12-13 17:59:23,802 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 14 predicate places. [2022-12-13 17:59:23,802 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 81 transitions, 553 flow [2022-12-13 17:59:23,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 133.25) internal successors, (533), 4 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:23,802 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:59:23,802 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:59:23,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 17:59:23,802 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:59:23,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:59:23,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1591766727, now seen corresponding path program 1 times [2022-12-13 17:59:23,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:59:23,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658184186] [2022-12-13 17:59:23,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:59:23,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:59:23,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:23,924 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 17:59:23,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:59:23,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658184186] [2022-12-13 17:59:23,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658184186] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:59:23,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:59:23,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:59:23,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308286489] [2022-12-13 17:59:23,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:59:23,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:59:23,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:59:23,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:59:23,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:59:23,929 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 291 [2022-12-13 17:59:23,929 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 81 transitions, 553 flow. Second operand has 4 states, 4 states have (on average 138.5) internal successors, (554), 4 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:23,929 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:59:23,930 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 291 [2022-12-13 17:59:23,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:59:25,191 INFO L130 PetriNetUnfolder]: 7864/12553 cut-off events. [2022-12-13 17:59:25,191 INFO L131 PetriNetUnfolder]: For 21309/21787 co-relation queries the response was YES. [2022-12-13 17:59:25,214 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48447 conditions, 12553 events. 7864/12553 cut-off events. For 21309/21787 co-relation queries the response was YES. Maximal size of possible extension queue 644. Compared 85240 event pairs, 1373 based on Foata normal form. 159/12517 useless extension candidates. Maximal degree in co-relation 48430. Up to 5405 conditions per place. [2022-12-13 17:59:25,228 INFO L137 encePairwiseOnDemand]: 288/291 looper letters, 115 selfloop transitions, 2 changer transitions 54/184 dead transitions. [2022-12-13 17:59:25,228 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 184 transitions, 1558 flow [2022-12-13 17:59:25,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:59:25,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 17:59:25,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 593 transitions. [2022-12-13 17:59:25,230 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5094501718213058 [2022-12-13 17:59:25,230 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 593 transitions. [2022-12-13 17:59:25,230 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 593 transitions. [2022-12-13 17:59:25,230 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:59:25,231 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 593 transitions. [2022-12-13 17:59:25,231 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 148.25) internal successors, (593), 4 states have internal predecessors, (593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:25,232 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 291.0) internal successors, (1455), 5 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:25,233 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 291.0) internal successors, (1455), 5 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:25,233 INFO L175 Difference]: Start difference. First operand has 66 places, 81 transitions, 553 flow. Second operand 4 states and 593 transitions. [2022-12-13 17:59:25,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 184 transitions, 1558 flow [2022-12-13 17:59:25,540 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 184 transitions, 1506 flow, removed 12 selfloop flow, removed 2 redundant places. [2022-12-13 17:59:25,542 INFO L231 Difference]: Finished difference. Result has 69 places, 82 transitions, 554 flow [2022-12-13 17:59:25,542 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=291, PETRI_DIFFERENCE_MINUEND_FLOW=533, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=554, PETRI_PLACES=69, PETRI_TRANSITIONS=82} [2022-12-13 17:59:25,542 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 17 predicate places. [2022-12-13 17:59:25,542 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 82 transitions, 554 flow [2022-12-13 17:59:25,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 138.5) internal successors, (554), 4 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:25,543 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:59:25,543 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:59:25,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 17:59:25,543 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:59:25,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:59:25,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1822904425, now seen corresponding path program 2 times [2022-12-13 17:59:25,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:59:25,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891387578] [2022-12-13 17:59:25,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:59:25,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:59:25,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:25,793 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 17:59:25,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:59:25,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891387578] [2022-12-13 17:59:25,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891387578] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:59:25,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:59:25,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 17:59:25,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496238581] [2022-12-13 17:59:25,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:59:25,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 17:59:25,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:59:25,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 17:59:25,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:59:25,805 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 291 [2022-12-13 17:59:25,806 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 82 transitions, 554 flow. Second operand has 5 states, 5 states have (on average 136.2) internal successors, (681), 5 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:25,806 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:59:25,806 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 291 [2022-12-13 17:59:25,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:59:27,282 INFO L130 PetriNetUnfolder]: 7360/12102 cut-off events. [2022-12-13 17:59:27,282 INFO L131 PetriNetUnfolder]: For 21200/21841 co-relation queries the response was YES. [2022-12-13 17:59:27,303 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45180 conditions, 12102 events. 7360/12102 cut-off events. For 21200/21841 co-relation queries the response was YES. Maximal size of possible extension queue 626. Compared 86350 event pairs, 1637 based on Foata normal form. 386/12203 useless extension candidates. Maximal degree in co-relation 45161. Up to 6507 conditions per place. [2022-12-13 17:59:27,316 INFO L137 encePairwiseOnDemand]: 283/291 looper letters, 87 selfloop transitions, 18 changer transitions 54/175 dead transitions. [2022-12-13 17:59:27,317 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 175 transitions, 1364 flow [2022-12-13 17:59:27,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 17:59:27,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 17:59:27,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 876 transitions. [2022-12-13 17:59:27,319 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5017182130584192 [2022-12-13 17:59:27,319 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 876 transitions. [2022-12-13 17:59:27,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 876 transitions. [2022-12-13 17:59:27,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:59:27,319 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 876 transitions. [2022-12-13 17:59:27,320 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 146.0) internal successors, (876), 6 states have internal predecessors, (876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:27,321 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 291.0) internal successors, (2037), 7 states have internal predecessors, (2037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:27,322 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 291.0) internal successors, (2037), 7 states have internal predecessors, (2037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:27,322 INFO L175 Difference]: Start difference. First operand has 69 places, 82 transitions, 554 flow. Second operand 6 states and 876 transitions. [2022-12-13 17:59:27,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 175 transitions, 1364 flow [2022-12-13 17:59:27,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 175 transitions, 1359 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 17:59:27,585 INFO L231 Difference]: Finished difference. Result has 74 places, 79 transitions, 570 flow [2022-12-13 17:59:27,585 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=291, PETRI_DIFFERENCE_MINUEND_FLOW=553, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=570, PETRI_PLACES=74, PETRI_TRANSITIONS=79} [2022-12-13 17:59:27,585 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 22 predicate places. [2022-12-13 17:59:27,585 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 79 transitions, 570 flow [2022-12-13 17:59:27,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 136.2) internal successors, (681), 5 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:27,586 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:59:27,586 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:59:27,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 17:59:27,586 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:59:27,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:59:27,586 INFO L85 PathProgramCache]: Analyzing trace with hash -796178921, now seen corresponding path program 3 times [2022-12-13 17:59:27,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:59:27,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033910987] [2022-12-13 17:59:27,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:59:27,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:59:27,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:27,987 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 17:59:27,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:59:27,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033910987] [2022-12-13 17:59:27,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033910987] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:59:27,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:59:27,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 17:59:27,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795958121] [2022-12-13 17:59:27,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:59:27,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 17:59:27,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:59:27,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 17:59:27,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-13 17:59:28,029 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 291 [2022-12-13 17:59:28,029 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 79 transitions, 570 flow. Second operand has 7 states, 7 states have (on average 134.0) internal successors, (938), 7 states have internal predecessors, (938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:28,030 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:59:28,030 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 291 [2022-12-13 17:59:28,030 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:59:29,550 INFO L130 PetriNetUnfolder]: 7359/12155 cut-off events. [2022-12-13 17:59:29,550 INFO L131 PetriNetUnfolder]: For 23977/24608 co-relation queries the response was YES. [2022-12-13 17:59:29,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47448 conditions, 12155 events. 7359/12155 cut-off events. For 23977/24608 co-relation queries the response was YES. Maximal size of possible extension queue 610. Compared 87286 event pairs, 1134 based on Foata normal form. 296/12217 useless extension candidates. Maximal degree in co-relation 47428. Up to 4597 conditions per place. [2022-12-13 17:59:29,588 INFO L137 encePairwiseOnDemand]: 284/291 looper letters, 106 selfloop transitions, 18 changer transitions 56/196 dead transitions. [2022-12-13 17:59:29,588 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 196 transitions, 1589 flow [2022-12-13 17:59:29,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 17:59:29,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 17:59:29,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 999 transitions. [2022-12-13 17:59:29,590 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49042709867452133 [2022-12-13 17:59:29,590 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 999 transitions. [2022-12-13 17:59:29,591 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 999 transitions. [2022-12-13 17:59:29,591 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:59:29,591 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 999 transitions. [2022-12-13 17:59:29,592 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 142.71428571428572) internal successors, (999), 7 states have internal predecessors, (999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:29,594 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 291.0) internal successors, (2328), 8 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:29,594 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 291.0) internal successors, (2328), 8 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:29,594 INFO L175 Difference]: Start difference. First operand has 74 places, 79 transitions, 570 flow. Second operand 7 states and 999 transitions. [2022-12-13 17:59:29,594 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 196 transitions, 1589 flow [2022-12-13 17:59:29,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 196 transitions, 1496 flow, removed 8 selfloop flow, removed 7 redundant places. [2022-12-13 17:59:29,902 INFO L231 Difference]: Finished difference. Result has 75 places, 85 transitions, 599 flow [2022-12-13 17:59:29,902 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=291, PETRI_DIFFERENCE_MINUEND_FLOW=487, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=599, PETRI_PLACES=75, PETRI_TRANSITIONS=85} [2022-12-13 17:59:29,902 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 23 predicate places. [2022-12-13 17:59:29,902 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 85 transitions, 599 flow [2022-12-13 17:59:29,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 134.0) internal successors, (938), 7 states have internal predecessors, (938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:29,903 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:59:29,903 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:59:29,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 17:59:29,903 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:59:29,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:59:29,903 INFO L85 PathProgramCache]: Analyzing trace with hash 57697048, now seen corresponding path program 1 times [2022-12-13 17:59:29,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:59:29,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948498153] [2022-12-13 17:59:29,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:59:29,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:59:29,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:30,400 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 17:59:30,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:59:30,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948498153] [2022-12-13 17:59:30,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948498153] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:59:30,400 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:59:30,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 17:59:30,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309714575] [2022-12-13 17:59:30,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:59:30,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 17:59:30,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:59:30,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 17:59:30,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-13 17:59:30,433 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 291 [2022-12-13 17:59:30,434 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 85 transitions, 599 flow. Second operand has 7 states, 7 states have (on average 133.0) internal successors, (931), 7 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:30,434 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:59:30,434 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 291 [2022-12-13 17:59:30,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:59:32,033 INFO L130 PetriNetUnfolder]: 7882/13136 cut-off events. [2022-12-13 17:59:32,033 INFO L131 PetriNetUnfolder]: For 30543/31125 co-relation queries the response was YES. [2022-12-13 17:59:32,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53381 conditions, 13136 events. 7882/13136 cut-off events. For 30543/31125 co-relation queries the response was YES. Maximal size of possible extension queue 684. Compared 96786 event pairs, 1437 based on Foata normal form. 339/13250 useless extension candidates. Maximal degree in co-relation 53360. Up to 5182 conditions per place. [2022-12-13 17:59:32,079 INFO L137 encePairwiseOnDemand]: 284/291 looper letters, 109 selfloop transitions, 21 changer transitions 53/199 dead transitions. [2022-12-13 17:59:32,079 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 199 transitions, 1658 flow [2022-12-13 17:59:32,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 17:59:32,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 17:59:32,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 992 transitions. [2022-12-13 17:59:32,081 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48699067255768286 [2022-12-13 17:59:32,081 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 992 transitions. [2022-12-13 17:59:32,081 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 992 transitions. [2022-12-13 17:59:32,081 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:59:32,081 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 992 transitions. [2022-12-13 17:59:32,083 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 141.71428571428572) internal successors, (992), 7 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:32,084 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 291.0) internal successors, (2328), 8 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:32,085 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 291.0) internal successors, (2328), 8 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:32,085 INFO L175 Difference]: Start difference. First operand has 75 places, 85 transitions, 599 flow. Second operand 7 states and 992 transitions. [2022-12-13 17:59:32,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 199 transitions, 1658 flow [2022-12-13 17:59:32,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 199 transitions, 1639 flow, removed 9 selfloop flow, removed 3 redundant places. [2022-12-13 17:59:32,456 INFO L231 Difference]: Finished difference. Result has 79 places, 95 transitions, 758 flow [2022-12-13 17:59:32,457 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=291, PETRI_DIFFERENCE_MINUEND_FLOW=590, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=758, PETRI_PLACES=79, PETRI_TRANSITIONS=95} [2022-12-13 17:59:32,457 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 27 predicate places. [2022-12-13 17:59:32,457 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 95 transitions, 758 flow [2022-12-13 17:59:32,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 133.0) internal successors, (931), 7 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:32,457 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:59:32,457 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:59:32,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 17:59:32,457 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:59:32,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:59:32,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1866809329, now seen corresponding path program 4 times [2022-12-13 17:59:32,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:59:32,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164758492] [2022-12-13 17:59:32,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:59:32,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:59:32,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:32,609 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 17:59:32,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:59:32,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164758492] [2022-12-13 17:59:32,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164758492] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:59:32,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:59:32,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 17:59:32,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616853444] [2022-12-13 17:59:32,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:59:32,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 17:59:32,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:59:32,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 17:59:32,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-13 17:59:32,621 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 291 [2022-12-13 17:59:32,621 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 95 transitions, 758 flow. Second operand has 7 states, 7 states have (on average 133.0) internal successors, (931), 7 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:32,621 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:59:32,621 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 291 [2022-12-13 17:59:32,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:59:34,033 INFO L130 PetriNetUnfolder]: 7306/11957 cut-off events. [2022-12-13 17:59:34,033 INFO L131 PetriNetUnfolder]: For 41066/41702 co-relation queries the response was YES. [2022-12-13 17:59:34,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51786 conditions, 11957 events. 7306/11957 cut-off events. For 41066/41702 co-relation queries the response was YES. Maximal size of possible extension queue 676. Compared 86646 event pairs, 731 based on Foata normal form. 473/12182 useless extension candidates. Maximal degree in co-relation 51764. Up to 4571 conditions per place. [2022-12-13 17:59:34,069 INFO L137 encePairwiseOnDemand]: 284/291 looper letters, 125 selfloop transitions, 18 changer transitions 52/208 dead transitions. [2022-12-13 17:59:34,069 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 208 transitions, 1905 flow [2022-12-13 17:59:34,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 17:59:34,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 17:59:34,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 988 transitions. [2022-12-13 17:59:34,071 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.485027000490918 [2022-12-13 17:59:34,071 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 988 transitions. [2022-12-13 17:59:34,071 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 988 transitions. [2022-12-13 17:59:34,071 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:59:34,071 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 988 transitions. [2022-12-13 17:59:34,073 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 141.14285714285714) internal successors, (988), 7 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:34,074 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 291.0) internal successors, (2328), 8 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:34,074 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 291.0) internal successors, (2328), 8 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:34,074 INFO L175 Difference]: Start difference. First operand has 79 places, 95 transitions, 758 flow. Second operand 7 states and 988 transitions. [2022-12-13 17:59:34,074 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 208 transitions, 1905 flow [2022-12-13 17:59:34,622 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 208 transitions, 1879 flow, removed 10 selfloop flow, removed 3 redundant places. [2022-12-13 17:59:34,624 INFO L231 Difference]: Finished difference. Result has 82 places, 79 transitions, 615 flow [2022-12-13 17:59:34,624 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=291, PETRI_DIFFERENCE_MINUEND_FLOW=684, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=615, PETRI_PLACES=82, PETRI_TRANSITIONS=79} [2022-12-13 17:59:34,624 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 30 predicate places. [2022-12-13 17:59:34,624 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 79 transitions, 615 flow [2022-12-13 17:59:34,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 133.0) internal successors, (931), 7 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:34,624 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:59:34,625 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:59:34,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 17:59:34,625 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:59:34,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:59:34,625 INFO L85 PathProgramCache]: Analyzing trace with hash -2145192682, now seen corresponding path program 1 times [2022-12-13 17:59:34,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:59:34,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842651830] [2022-12-13 17:59:34,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:59:34,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:59:34,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:34,747 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 17:59:34,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:59:34,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842651830] [2022-12-13 17:59:34,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842651830] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:59:34,748 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:59:34,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:59:34,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059218783] [2022-12-13 17:59:34,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:59:34,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:59:34,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:59:34,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:59:34,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:59:34,754 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 291 [2022-12-13 17:59:34,755 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 79 transitions, 615 flow. Second operand has 4 states, 4 states have (on average 139.25) internal successors, (557), 4 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:34,755 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:59:34,755 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 291 [2022-12-13 17:59:34,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:59:35,225 INFO L130 PetriNetUnfolder]: 2460/3968 cut-off events. [2022-12-13 17:59:35,225 INFO L131 PetriNetUnfolder]: For 12401/12457 co-relation queries the response was YES. [2022-12-13 17:59:35,233 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17870 conditions, 3968 events. 2460/3968 cut-off events. For 12401/12457 co-relation queries the response was YES. Maximal size of possible extension queue 172. Compared 21472 event pairs, 463 based on Foata normal form. 23/3966 useless extension candidates. Maximal degree in co-relation 17848. Up to 1829 conditions per place. [2022-12-13 17:59:35,238 INFO L137 encePairwiseOnDemand]: 288/291 looper letters, 68 selfloop transitions, 1 changer transitions 72/146 dead transitions. [2022-12-13 17:59:35,238 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 146 transitions, 1421 flow [2022-12-13 17:59:35,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:59:35,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 17:59:35,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 582 transitions. [2022-12-13 17:59:35,239 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5 [2022-12-13 17:59:35,239 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 582 transitions. [2022-12-13 17:59:35,239 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 582 transitions. [2022-12-13 17:59:35,239 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:59:35,239 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 582 transitions. [2022-12-13 17:59:35,240 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 145.5) internal successors, (582), 4 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:35,241 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 291.0) internal successors, (1455), 5 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:35,241 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 291.0) internal successors, (1455), 5 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:35,241 INFO L175 Difference]: Start difference. First operand has 82 places, 79 transitions, 615 flow. Second operand 4 states and 582 transitions. [2022-12-13 17:59:35,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 146 transitions, 1421 flow [2022-12-13 17:59:35,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 146 transitions, 1303 flow, removed 27 selfloop flow, removed 6 redundant places. [2022-12-13 17:59:35,286 INFO L231 Difference]: Finished difference. Result has 80 places, 64 transitions, 449 flow [2022-12-13 17:59:35,286 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=291, PETRI_DIFFERENCE_MINUEND_FLOW=554, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=449, PETRI_PLACES=80, PETRI_TRANSITIONS=64} [2022-12-13 17:59:35,286 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 28 predicate places. [2022-12-13 17:59:35,286 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 64 transitions, 449 flow [2022-12-13 17:59:35,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 139.25) internal successors, (557), 4 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:35,287 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:59:35,287 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:59:35,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 17:59:35,287 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:59:35,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:59:35,287 INFO L85 PathProgramCache]: Analyzing trace with hash -581181842, now seen corresponding path program 2 times [2022-12-13 17:59:35,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:59:35,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308732828] [2022-12-13 17:59:35,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:59:35,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:59:35,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:36,017 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 17:59:36,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:59:36,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308732828] [2022-12-13 17:59:36,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308732828] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:59:36,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:59:36,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 17:59:36,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350750387] [2022-12-13 17:59:36,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:59:36,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 17:59:36,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:59:36,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 17:59:36,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-13 17:59:36,082 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 291 [2022-12-13 17:59:36,083 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 64 transitions, 449 flow. Second operand has 9 states, 9 states have (on average 131.66666666666666) internal successors, (1185), 9 states have internal predecessors, (1185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:36,083 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:59:36,083 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 291 [2022-12-13 17:59:36,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:59:36,412 INFO L130 PetriNetUnfolder]: 748/1232 cut-off events. [2022-12-13 17:59:36,413 INFO L131 PetriNetUnfolder]: For 3035/3063 co-relation queries the response was YES. [2022-12-13 17:59:36,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5267 conditions, 1232 events. 748/1232 cut-off events. For 3035/3063 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 5308 event pairs, 102 based on Foata normal form. 14/1208 useless extension candidates. Maximal degree in co-relation 5245. Up to 782 conditions per place. [2022-12-13 17:59:36,417 INFO L137 encePairwiseOnDemand]: 285/291 looper letters, 58 selfloop transitions, 7 changer transitions 41/111 dead transitions. [2022-12-13 17:59:36,417 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 111 transitions, 920 flow [2022-12-13 17:59:36,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 17:59:36,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 17:59:36,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 959 transitions. [2022-12-13 17:59:36,418 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47079037800687284 [2022-12-13 17:59:36,418 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 959 transitions. [2022-12-13 17:59:36,418 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 959 transitions. [2022-12-13 17:59:36,419 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:59:36,419 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 959 transitions. [2022-12-13 17:59:36,420 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 137.0) internal successors, (959), 7 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:36,421 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 291.0) internal successors, (2328), 8 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:36,421 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 291.0) internal successors, (2328), 8 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:36,421 INFO L175 Difference]: Start difference. First operand has 80 places, 64 transitions, 449 flow. Second operand 7 states and 959 transitions. [2022-12-13 17:59:36,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 111 transitions, 920 flow [2022-12-13 17:59:36,428 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 111 transitions, 739 flow, removed 21 selfloop flow, removed 14 redundant places. [2022-12-13 17:59:36,429 INFO L231 Difference]: Finished difference. Result has 73 places, 54 transitions, 300 flow [2022-12-13 17:59:36,429 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=291, PETRI_DIFFERENCE_MINUEND_FLOW=351, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=300, PETRI_PLACES=73, PETRI_TRANSITIONS=54} [2022-12-13 17:59:36,430 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 21 predicate places. [2022-12-13 17:59:36,430 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 54 transitions, 300 flow [2022-12-13 17:59:36,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 131.66666666666666) internal successors, (1185), 9 states have internal predecessors, (1185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:36,430 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:59:36,430 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:59:36,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 17:59:36,430 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:59:36,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:59:36,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1720093438, now seen corresponding path program 3 times [2022-12-13 17:59:36,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:59:36,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81319788] [2022-12-13 17:59:36,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:59:36,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:59:36,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:59:36,466 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 17:59:36,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:59:36,532 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 17:59:36,533 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 17:59:36,534 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (15 of 16 remaining) [2022-12-13 17:59:36,535 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (14 of 16 remaining) [2022-12-13 17:59:36,535 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 16 remaining) [2022-12-13 17:59:36,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 16 remaining) [2022-12-13 17:59:36,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 16 remaining) [2022-12-13 17:59:36,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 16 remaining) [2022-12-13 17:59:36,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 16 remaining) [2022-12-13 17:59:36,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 16 remaining) [2022-12-13 17:59:36,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 16 remaining) [2022-12-13 17:59:36,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 16 remaining) [2022-12-13 17:59:36,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK (5 of 16 remaining) [2022-12-13 17:59:36,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 16 remaining) [2022-12-13 17:59:36,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 16 remaining) [2022-12-13 17:59:36,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 16 remaining) [2022-12-13 17:59:36,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 16 remaining) [2022-12-13 17:59:36,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 16 remaining) [2022-12-13 17:59:36,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-13 17:59:36,537 INFO L445 BasicCegarLoop]: Path program histogram: [4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:59:36,541 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 17:59:36,541 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 17:59:36,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 05:59:36 BasicIcfg [2022-12-13 17:59:36,606 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 17:59:36,607 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 17:59:36,607 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 17:59:36,607 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 17:59:36,608 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:59:02" (3/4) ... [2022-12-13 17:59:36,610 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 17:59:36,610 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 17:59:36,610 INFO L158 Benchmark]: Toolchain (without parser) took 35207.42ms. Allocated memory was 117.4MB in the beginning and 2.1GB in the end (delta: 2.0GB). Free memory was 80.8MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 572.1MB. Max. memory is 16.1GB. [2022-12-13 17:59:36,611 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 117.4MB. Free memory was 82.0MB in the beginning and 82.0MB in the end (delta: 24.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 17:59:36,611 INFO L158 Benchmark]: CACSL2BoogieTranslator took 365.28ms. Allocated memory is still 117.4MB. Free memory was 80.3MB in the beginning and 52.1MB in the end (delta: 28.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-12-13 17:59:36,611 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.44ms. Allocated memory is still 117.4MB. Free memory was 52.1MB in the beginning and 49.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 17:59:36,611 INFO L158 Benchmark]: Boogie Preprocessor took 21.51ms. Allocated memory is still 117.4MB. Free memory was 49.5MB in the beginning and 47.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 17:59:36,612 INFO L158 Benchmark]: RCFGBuilder took 545.06ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 47.4MB in the beginning and 78.6MB in the end (delta: -31.2MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. [2022-12-13 17:59:36,612 INFO L158 Benchmark]: TraceAbstraction took 34234.83ms. Allocated memory was 142.6MB in the beginning and 2.1GB in the end (delta: 2.0GB). Free memory was 78.6MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 542.3MB. Max. memory is 16.1GB. [2022-12-13 17:59:36,612 INFO L158 Benchmark]: Witness Printer took 2.96ms. Allocated memory is still 2.1GB. Free memory is still 1.5GB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 17:59:36,613 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 117.4MB. Free memory was 82.0MB in the beginning and 82.0MB in the end (delta: 24.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 365.28ms. Allocated memory is still 117.4MB. Free memory was 80.3MB in the beginning and 52.1MB in the end (delta: 28.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.44ms. Allocated memory is still 117.4MB. Free memory was 52.1MB in the beginning and 49.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.51ms. Allocated memory is still 117.4MB. Free memory was 49.5MB in the beginning and 47.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 545.06ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 47.4MB in the beginning and 78.6MB in the end (delta: -31.2MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. * TraceAbstraction took 34234.83ms. Allocated memory was 142.6MB in the beginning and 2.1GB in the end (delta: 2.0GB). Free memory was 78.6MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 542.3MB. Max. memory is 16.1GB. * Witness Printer took 2.96ms. Allocated memory is still 2.1GB. Free memory is still 1.5GB. 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: 4.1s, 159 PlacesBefore, 52 PlacesAfterwards, 148 TransitionsBefore, 39 TransitionsAfterwards, 3884 CoEnabledTransitionPairs, 8 FixpointIterations, 50 TrivialSequentialCompositions, 79 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 139 TotalNumberOfCompositions, 11243 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5198, independent: 4923, independent conditional: 0, independent unconditional: 4923, dependent: 275, dependent conditional: 0, dependent unconditional: 275, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2067, independent: 2014, independent conditional: 0, independent unconditional: 2014, dependent: 53, dependent conditional: 0, dependent unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5198, independent: 2909, independent conditional: 0, independent unconditional: 2909, dependent: 222, dependent conditional: 0, dependent unconditional: 222, unknown: 2067, unknown conditional: 0, unknown unconditional: 2067] , Statistics on independence cache: Total cache size (in pairs): 199, Positive cache size: 180, Positive conditional cache size: 0, Positive unconditional cache size: 180, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p0_EAX = 0; [L714] 0 int __unbuffered_p1_EAX = 0; [L716] 0 int __unbuffered_p3_EAX = 0; [L718] 0 int __unbuffered_p3_EBX = 0; [L720] 0 int a = 0; [L722] 0 int b = 0; [L723] 0 _Bool b$flush_delayed; [L724] 0 int b$mem_tmp; [L725] 0 _Bool b$r_buff0_thd0; [L726] 0 _Bool b$r_buff0_thd1; [L727] 0 _Bool b$r_buff0_thd2; [L728] 0 _Bool b$r_buff0_thd3; [L729] 0 _Bool b$r_buff0_thd4; [L730] 0 _Bool b$r_buff1_thd0; [L731] 0 _Bool b$r_buff1_thd1; [L732] 0 _Bool b$r_buff1_thd2; [L733] 0 _Bool b$r_buff1_thd3; [L734] 0 _Bool b$r_buff1_thd4; [L735] 0 _Bool b$read_delayed; [L736] 0 int *b$read_delayed_var; [L737] 0 int b$w_buff0; [L738] 0 _Bool b$w_buff0_used; [L739] 0 int b$w_buff1; [L740] 0 _Bool b$w_buff1_used; [L741] 0 _Bool main$tmp_guard0; [L742] 0 _Bool main$tmp_guard1; [L744] 0 int x = 0; [L746] 0 int y = 0; [L748] 0 int z = 0; [L749] 0 _Bool weak$$choice0; [L750] 0 _Bool weak$$choice2; [L871] 0 pthread_t t1129; [L872] FCALL, FORK 0 pthread_create(&t1129, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, b$flush_delayed=0, b$mem_tmp=0, b$r_buff0_thd0=0, b$r_buff0_thd1=0, b$r_buff0_thd2=0, b$r_buff0_thd3=0, b$r_buff0_thd4=0, b$r_buff1_thd0=0, b$r_buff1_thd1=0, b$r_buff1_thd2=0, b$r_buff1_thd3=0, b$r_buff1_thd4=0, b$read_delayed=0, b$read_delayed_var={0:0}, b$w_buff0=0, b$w_buff0_used=0, b$w_buff1=0, b$w_buff1_used=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1129, ((void *)0), P0, ((void *)0))=-4, t1129={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L873] 0 pthread_t t1130; [L874] FCALL, FORK 0 pthread_create(&t1130, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, b=0, b$flush_delayed=0, b$mem_tmp=0, b$r_buff0_thd0=0, b$r_buff0_thd1=0, b$r_buff0_thd2=0, b$r_buff0_thd3=0, b$r_buff0_thd4=0, b$r_buff1_thd0=0, b$r_buff1_thd1=0, b$r_buff1_thd2=0, b$r_buff1_thd3=0, b$r_buff1_thd4=0, b$read_delayed=0, b$read_delayed_var={0:0}, b$w_buff0=0, b$w_buff0_used=0, b$w_buff1=0, b$w_buff1_used=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1130, ((void *)0), P1, ((void *)0))=-3, t1129={5:0}, t1130={6:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L875] 0 pthread_t t1131; [L876] FCALL, FORK 0 pthread_create(&t1131, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, b=0, b$flush_delayed=0, b$mem_tmp=0, b$r_buff0_thd0=0, b$r_buff0_thd1=0, b$r_buff0_thd2=0, b$r_buff0_thd3=0, b$r_buff0_thd4=0, b$r_buff1_thd0=0, b$r_buff1_thd1=0, b$r_buff1_thd2=0, b$r_buff1_thd3=0, b$r_buff1_thd4=0, b$read_delayed=0, b$read_delayed_var={0:0}, b$w_buff0=0, b$w_buff0_used=0, b$w_buff1=0, b$w_buff1_used=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1131, ((void *)0), P2, ((void *)0))=-2, t1129={5:0}, t1130={6:0}, t1131={7:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L877] 0 pthread_t t1132; [L878] FCALL, FORK 0 pthread_create(&t1132, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, b=0, b$flush_delayed=0, b$mem_tmp=0, b$r_buff0_thd0=0, b$r_buff0_thd1=0, b$r_buff0_thd2=0, b$r_buff0_thd3=0, b$r_buff0_thd4=0, b$r_buff1_thd0=0, b$r_buff1_thd1=0, b$r_buff1_thd2=0, b$r_buff1_thd3=0, b$r_buff1_thd4=0, b$read_delayed=0, b$read_delayed_var={0:0}, b$w_buff0=0, b$w_buff0_used=0, b$w_buff1=0, b$w_buff1_used=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1132, ((void *)0), P3, ((void *)0))=-1, t1129={5:0}, t1130={6:0}, t1131={7:0}, t1132={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L754] 1 b$w_buff1 = b$w_buff0 [L755] 1 b$w_buff0 = 1 [L756] 1 b$w_buff1_used = b$w_buff0_used [L757] 1 b$w_buff0_used = (_Bool)1 [L758] CALL 1 __VERIFIER_assert(!(b$w_buff1_used && b$w_buff0_used)) [L18] COND FALSE 1 !(!expression) [L758] RET 1 __VERIFIER_assert(!(b$w_buff1_used && b$w_buff0_used)) [L759] 1 b$r_buff1_thd0 = b$r_buff0_thd0 [L760] 1 b$r_buff1_thd1 = b$r_buff0_thd1 [L761] 1 b$r_buff1_thd2 = b$r_buff0_thd2 [L762] 1 b$r_buff1_thd3 = b$r_buff0_thd3 [L763] 1 b$r_buff1_thd4 = b$r_buff0_thd4 [L764] 1 b$r_buff0_thd1 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, b$flush_delayed=0, b$mem_tmp=0, b$r_buff0_thd0=0, b$r_buff0_thd1=1, b$r_buff0_thd2=0, b$r_buff0_thd3=0, b$r_buff0_thd4=0, b$r_buff1_thd0=0, b$r_buff1_thd1=0, b$r_buff1_thd2=0, b$r_buff1_thd3=0, b$r_buff1_thd4=0, b$read_delayed=0, b$read_delayed_var={0:0}, b$w_buff0=1, b$w_buff0_used=1, b$w_buff1=0, b$w_buff1_used=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L767] 1 __unbuffered_p0_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, b$flush_delayed=0, b$mem_tmp=0, b$r_buff0_thd0=0, b$r_buff0_thd1=1, b$r_buff0_thd2=0, b$r_buff0_thd3=0, b$r_buff0_thd4=0, b$r_buff1_thd0=0, b$r_buff1_thd1=0, b$r_buff1_thd2=0, b$r_buff1_thd3=0, b$r_buff1_thd4=0, b$read_delayed=0, b$read_delayed_var={0:0}, b$w_buff0=1, b$w_buff0_used=1, b$w_buff1=0, b$w_buff1_used=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L784] 2 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, b$flush_delayed=0, b$mem_tmp=0, b$r_buff0_thd0=0, b$r_buff0_thd1=1, b$r_buff0_thd2=0, b$r_buff0_thd3=0, b$r_buff0_thd4=0, b$r_buff1_thd0=0, b$r_buff1_thd1=0, b$r_buff1_thd2=0, b$r_buff1_thd3=0, b$r_buff1_thd4=0, b$read_delayed=0, b$read_delayed_var={0:0}, b$w_buff0=1, b$w_buff0_used=1, b$w_buff1=0, b$w_buff1_used=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0] [L787] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, b$flush_delayed=0, b$mem_tmp=0, b$r_buff0_thd0=0, b$r_buff0_thd1=1, b$r_buff0_thd2=0, b$r_buff0_thd3=0, b$r_buff0_thd4=0, b$r_buff1_thd0=0, b$r_buff1_thd1=0, b$r_buff1_thd2=0, b$r_buff1_thd3=0, b$r_buff1_thd4=0, b$read_delayed=0, b$read_delayed_var={0:0}, b$w_buff0=1, b$w_buff0_used=1, b$w_buff1=0, b$w_buff1_used=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0] [L804] 3 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, b$flush_delayed=0, b$mem_tmp=0, b$r_buff0_thd0=0, b$r_buff0_thd1=1, b$r_buff0_thd2=0, b$r_buff0_thd3=0, b$r_buff0_thd4=0, b$r_buff1_thd0=0, b$r_buff1_thd1=0, b$r_buff1_thd2=0, b$r_buff1_thd3=0, b$r_buff1_thd4=0, b$read_delayed=0, b$read_delayed_var={0:0}, b$w_buff0=1, b$w_buff0_used=1, b$w_buff1=0, b$w_buff1_used=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=0] [L807] 3 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, b$flush_delayed=0, b$mem_tmp=0, b$r_buff0_thd0=0, b$r_buff0_thd1=1, b$r_buff0_thd2=0, b$r_buff0_thd3=0, b$r_buff0_thd4=0, b$r_buff1_thd0=0, b$r_buff1_thd1=0, b$r_buff1_thd2=0, b$r_buff1_thd3=0, b$r_buff1_thd4=0, b$read_delayed=0, b$read_delayed_var={0:0}, b$w_buff0=1, b$w_buff0_used=1, b$w_buff1=0, b$w_buff1_used=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=1] [L824] 4 z = 2 [L827] 4 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, b$flush_delayed=0, b$mem_tmp=0, b$r_buff0_thd0=0, b$r_buff0_thd1=1, b$r_buff0_thd2=0, b$r_buff0_thd3=0, b$r_buff0_thd4=0, b$r_buff1_thd0=0, b$r_buff1_thd1=0, b$r_buff1_thd2=0, b$r_buff1_thd3=0, b$r_buff1_thd4=0, b$read_delayed=0, b$read_delayed_var={0:0}, b$w_buff0=1, b$w_buff0_used=1, b$w_buff1=0, b$w_buff1_used=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=2] [L790] 2 b = b$w_buff0_used && b$r_buff0_thd2 ? b$w_buff0 : (b$w_buff1_used && b$r_buff1_thd2 ? b$w_buff1 : b) [L791] 2 b$w_buff0_used = b$w_buff0_used && b$r_buff0_thd2 ? (_Bool)0 : b$w_buff0_used [L792] 2 b$w_buff1_used = b$w_buff0_used && b$r_buff0_thd2 || b$w_buff1_used && b$r_buff1_thd2 ? (_Bool)0 : b$w_buff1_used [L793] 2 b$r_buff0_thd2 = b$w_buff0_used && b$r_buff0_thd2 ? (_Bool)0 : b$r_buff0_thd2 [L794] 2 b$r_buff1_thd2 = b$w_buff0_used && b$r_buff0_thd2 || b$w_buff1_used && b$r_buff1_thd2 ? (_Bool)0 : b$r_buff1_thd2 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, b$flush_delayed=0, b$mem_tmp=0, b$r_buff0_thd0=0, b$r_buff0_thd1=1, b$r_buff0_thd2=0, b$r_buff0_thd3=0, b$r_buff0_thd4=0, b$r_buff1_thd0=0, b$r_buff1_thd1=0, b$r_buff1_thd2=0, b$r_buff1_thd3=0, b$r_buff1_thd4=0, b$read_delayed=0, b$read_delayed_var={0:0}, b$w_buff0=1, b$w_buff0_used=1, b$w_buff1=0, b$w_buff1_used=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=2] [L830] 4 __unbuffered_p3_EAX = a VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, b$flush_delayed=0, b$mem_tmp=0, b$r_buff0_thd0=0, b$r_buff0_thd1=1, b$r_buff0_thd2=0, b$r_buff0_thd3=0, b$r_buff0_thd4=0, b$r_buff1_thd0=0, b$r_buff1_thd1=0, b$r_buff1_thd2=0, b$r_buff1_thd3=0, b$r_buff1_thd4=0, b$read_delayed=0, b$read_delayed_var={0:0}, b$w_buff0=1, b$w_buff0_used=1, b$w_buff1=0, b$w_buff1_used=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=2] [L833] 4 weak$$choice0 = __VERIFIER_nondet_bool() [L834] 4 weak$$choice2 = __VERIFIER_nondet_bool() [L835] 4 b$flush_delayed = weak$$choice2 [L836] 4 b$mem_tmp = b [L837] 4 b = !b$w_buff0_used || !b$r_buff0_thd4 && !b$w_buff1_used || !b$r_buff0_thd4 && !b$r_buff1_thd4 ? b : (b$w_buff0_used && b$r_buff0_thd4 ? b$w_buff0 : b$w_buff1) [L838] 4 b$w_buff0 = weak$$choice2 ? b$w_buff0 : (!b$w_buff0_used || !b$r_buff0_thd4 && !b$w_buff1_used || !b$r_buff0_thd4 && !b$r_buff1_thd4 ? b$w_buff0 : (b$w_buff0_used && b$r_buff0_thd4 ? b$w_buff0 : b$w_buff0)) [L839] 4 b$w_buff1 = weak$$choice2 ? b$w_buff1 : (!b$w_buff0_used || !b$r_buff0_thd4 && !b$w_buff1_used || !b$r_buff0_thd4 && !b$r_buff1_thd4 ? b$w_buff1 : (b$w_buff0_used && b$r_buff0_thd4 ? b$w_buff1 : b$w_buff1)) [L840] 4 b$w_buff0_used = weak$$choice2 ? b$w_buff0_used : (!b$w_buff0_used || !b$r_buff0_thd4 && !b$w_buff1_used || !b$r_buff0_thd4 && !b$r_buff1_thd4 ? b$w_buff0_used : (b$w_buff0_used && b$r_buff0_thd4 ? (_Bool)0 : b$w_buff0_used)) [L841] 4 b$w_buff1_used = weak$$choice2 ? b$w_buff1_used : (!b$w_buff0_used || !b$r_buff0_thd4 && !b$w_buff1_used || !b$r_buff0_thd4 && !b$r_buff1_thd4 ? b$w_buff1_used : (b$w_buff0_used && b$r_buff0_thd4 ? (_Bool)0 : (_Bool)0)) [L842] 4 b$r_buff0_thd4 = weak$$choice2 ? b$r_buff0_thd4 : (!b$w_buff0_used || !b$r_buff0_thd4 && !b$w_buff1_used || !b$r_buff0_thd4 && !b$r_buff1_thd4 ? b$r_buff0_thd4 : (b$w_buff0_used && b$r_buff0_thd4 ? (_Bool)0 : b$r_buff0_thd4)) [L843] 4 b$r_buff1_thd4 = weak$$choice2 ? b$r_buff1_thd4 : (!b$w_buff0_used || !b$r_buff0_thd4 && !b$w_buff1_used || !b$r_buff0_thd4 && !b$r_buff1_thd4 ? b$r_buff1_thd4 : (b$w_buff0_used && b$r_buff0_thd4 ? (_Bool)0 : (_Bool)0)) [L844] 4 __unbuffered_p3_EBX = b [L845] 4 b = b$flush_delayed ? b$mem_tmp : b [L846] 4 b$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, b$flush_delayed=0, b$mem_tmp=0, b$r_buff0_thd0=0, b$r_buff0_thd1=1, b$r_buff0_thd2=0, b$r_buff0_thd3=0, b$r_buff0_thd4=0, b$r_buff1_thd0=0, b$r_buff1_thd1=0, b$r_buff1_thd2=0, b$r_buff1_thd3=0, b$r_buff1_thd4=0, b$read_delayed=0, b$read_delayed_var={0:0}, b$w_buff0=1, b$w_buff0_used=1, b$w_buff1=0, b$w_buff1_used=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, y=1, z=2] [L849] 4 b = b$w_buff0_used && b$r_buff0_thd4 ? b$w_buff0 : (b$w_buff1_used && b$r_buff1_thd4 ? b$w_buff1 : b) [L850] 4 b$w_buff0_used = b$w_buff0_used && b$r_buff0_thd4 ? (_Bool)0 : b$w_buff0_used [L851] 4 b$w_buff1_used = b$w_buff0_used && b$r_buff0_thd4 || b$w_buff1_used && b$r_buff1_thd4 ? (_Bool)0 : b$w_buff1_used [L852] 4 b$r_buff0_thd4 = b$w_buff0_used && b$r_buff0_thd4 ? (_Bool)0 : b$r_buff0_thd4 [L853] 4 b$r_buff1_thd4 = b$w_buff0_used && b$r_buff0_thd4 || b$w_buff1_used && b$r_buff1_thd4 ? (_Bool)0 : b$r_buff1_thd4 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, b$flush_delayed=0, b$mem_tmp=0, b$r_buff0_thd0=0, b$r_buff0_thd1=1, b$r_buff0_thd2=0, b$r_buff0_thd3=0, b$r_buff0_thd4=0, b$r_buff1_thd0=0, b$r_buff1_thd1=0, b$r_buff1_thd2=0, b$r_buff1_thd3=0, b$r_buff1_thd4=0, b$read_delayed=0, b$read_delayed_var={0:0}, b$w_buff0=1, b$w_buff0_used=1, b$w_buff1=0, b$w_buff1_used=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, y=1, z=2] [L770] 1 b = b$w_buff0_used && b$r_buff0_thd1 ? b$w_buff0 : (b$w_buff1_used && b$r_buff1_thd1 ? b$w_buff1 : b) [L771] 1 b$w_buff0_used = b$w_buff0_used && b$r_buff0_thd1 ? (_Bool)0 : b$w_buff0_used [L772] 1 b$w_buff1_used = b$w_buff0_used && b$r_buff0_thd1 || b$w_buff1_used && b$r_buff1_thd1 ? (_Bool)0 : b$w_buff1_used [L773] 1 b$r_buff0_thd1 = b$w_buff0_used && b$r_buff0_thd1 ? (_Bool)0 : b$r_buff0_thd1 [L774] 1 b$r_buff1_thd1 = b$w_buff0_used && b$r_buff0_thd1 || b$w_buff1_used && b$r_buff1_thd1 ? (_Bool)0 : b$r_buff1_thd1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, b$flush_delayed=0, b$mem_tmp=0, b$r_buff0_thd0=0, b$r_buff0_thd1=1, b$r_buff0_thd2=0, b$r_buff0_thd3=0, b$r_buff0_thd4=0, b$r_buff1_thd0=0, b$r_buff1_thd1=0, b$r_buff1_thd2=0, b$r_buff1_thd3=0, b$r_buff1_thd4=0, b$read_delayed=0, b$read_delayed_var={0:0}, b$w_buff0=1, b$w_buff0_used=0, b$w_buff1=0, b$w_buff1_used=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, y=1, z=2] [L777] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L779] 1 return 0; [L797] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L799] 2 return 0; [L810] 3 b = b$w_buff0_used && b$r_buff0_thd3 ? b$w_buff0 : (b$w_buff1_used && b$r_buff1_thd3 ? b$w_buff1 : b) [L811] 3 b$w_buff0_used = b$w_buff0_used && b$r_buff0_thd3 ? (_Bool)0 : b$w_buff0_used [L812] 3 b$w_buff1_used = b$w_buff0_used && b$r_buff0_thd3 || b$w_buff1_used && b$r_buff1_thd3 ? (_Bool)0 : b$w_buff1_used [L813] 3 b$r_buff0_thd3 = b$w_buff0_used && b$r_buff0_thd3 ? (_Bool)0 : b$r_buff0_thd3 [L814] 3 b$r_buff1_thd3 = b$w_buff0_used && b$r_buff0_thd3 || b$w_buff1_used && b$r_buff1_thd3 ? (_Bool)0 : b$r_buff1_thd3 VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, b$flush_delayed=0, b$mem_tmp=0, b$r_buff0_thd0=0, b$r_buff0_thd1=1, b$r_buff0_thd2=0, b$r_buff0_thd3=0, b$r_buff0_thd4=0, b$r_buff1_thd0=0, b$r_buff1_thd1=0, b$r_buff1_thd2=0, b$r_buff1_thd3=0, b$r_buff1_thd4=0, b$read_delayed=0, b$read_delayed_var={0:0}, b$w_buff0=1, b$w_buff0_used=0, b$w_buff1=0, b$w_buff1_used=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, y=1, z=2] [L817] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L819] 3 return 0; [L856] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L858] 4 return 0; [L880] 0 main$tmp_guard0 = __unbuffered_cnt == 4 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, b$flush_delayed=0, b$mem_tmp=0, b$r_buff0_thd0=0, b$r_buff0_thd1=1, b$r_buff0_thd2=0, b$r_buff0_thd3=0, b$r_buff0_thd4=0, b$r_buff1_thd0=0, b$r_buff1_thd1=0, b$r_buff1_thd2=0, b$r_buff1_thd3=0, b$r_buff1_thd4=0, b$read_delayed=0, b$read_delayed_var={0:0}, b$w_buff0=1, b$w_buff0_used=0, b$w_buff1=0, b$w_buff1_used=0, main$tmp_guard0=1, main$tmp_guard1=0, t1129={5:0}, t1130={6:0}, t1131={7:0}, t1132={3:0}, weak$$choice0=49, weak$$choice2=0, x=1, y=1, z=2] [L882] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L882] RET 0 assume_abort_if_not(main$tmp_guard0) [L884] 0 b = b$w_buff0_used && b$r_buff0_thd0 ? b$w_buff0 : (b$w_buff1_used && b$r_buff1_thd0 ? b$w_buff1 : b) [L885] 0 b$w_buff0_used = b$w_buff0_used && b$r_buff0_thd0 ? (_Bool)0 : b$w_buff0_used [L886] 0 b$w_buff1_used = b$w_buff0_used && b$r_buff0_thd0 || b$w_buff1_used && b$r_buff1_thd0 ? (_Bool)0 : b$w_buff1_used [L887] 0 b$r_buff0_thd0 = b$w_buff0_used && b$r_buff0_thd0 ? (_Bool)0 : b$r_buff0_thd0 [L888] 0 b$r_buff1_thd0 = b$w_buff0_used && b$r_buff0_thd0 || b$w_buff1_used && b$r_buff1_thd0 ? (_Bool)0 : b$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, b$flush_delayed=0, b$mem_tmp=0, b$r_buff0_thd0=0, b$r_buff0_thd1=1, b$r_buff0_thd2=0, b$r_buff0_thd3=0, b$r_buff0_thd4=0, b$r_buff1_thd0=0, b$r_buff1_thd1=0, b$r_buff1_thd2=0, b$r_buff1_thd3=0, b$r_buff1_thd4=0, b$read_delayed=0, b$read_delayed_var={0:0}, b$w_buff0=1, b$w_buff0_used=0, b$w_buff1=0, b$w_buff1_used=0, main$tmp_guard0=1, main$tmp_guard1=0, t1129={5:0}, t1130={6:0}, t1131={7:0}, t1132={3:0}, weak$$choice0=49, weak$$choice2=0, x=1, y=1, z=2] [L891] 0 main$tmp_guard1 = !(z == 2 && __unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 0 && __unbuffered_p3_EAX == 1 && __unbuffered_p3_EBX == 0) [L893] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\old(expression)=0, \old(expression)=1, \result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, b$flush_delayed=0, b$mem_tmp=0, b$r_buff0_thd0=0, b$r_buff0_thd1=1, b$r_buff0_thd2=0, b$r_buff0_thd3=0, b$r_buff0_thd4=0, b$r_buff1_thd0=0, b$r_buff1_thd1=0, b$r_buff1_thd2=0, b$r_buff1_thd3=0, b$r_buff1_thd4=0, b$read_delayed=0, b$read_delayed_var={0:0}, b$w_buff0=1, b$w_buff0_used=0, b$w_buff1=0, b$w_buff1_used=0, expression=1, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, y=1, z=2] - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 869]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 876]: 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: 874]: 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: 878]: 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: 872]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 190 locations, 16 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 34.1s, OverallIterations: 18, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 25.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1331 SdHoareTripleChecker+Valid, 3.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1138 mSDsluCounter, 495 SdHoareTripleChecker+Invalid, 2.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 356 mSDsCounter, 182 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3194 IncrementalHoareTripleChecker+Invalid, 3376 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 182 mSolverCounterUnsat, 139 mSDtfsCounter, 3194 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 91 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=758occurred in iteration=14, InterpolantAutomatonStates: 88, 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, 0.3s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 337 NumberOfCodeBlocks, 337 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 292 ConstructedInterpolants, 0 QuantifiedInterpolants, 2979 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 17 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 17:59:36,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/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_31b8d579-5be7-4120-936f-1b43e6180a14/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix043.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/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_31b8d579-5be7-4120-936f-1b43e6180a14/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 9bfd96daa3950021158d7079dc25a62741fa5d5a7f9e521049c1a78760db50f1 --- 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 17:59:38,278 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 17:59:38,279 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 17:59:38,294 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 17:59:38,294 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 17:59:38,295 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 17:59:38,296 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 17:59:38,297 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 17:59:38,298 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 17:59:38,298 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 17:59:38,299 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 17:59:38,300 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 17:59:38,300 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 17:59:38,301 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 17:59:38,301 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 17:59:38,302 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 17:59:38,302 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 17:59:38,303 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 17:59:38,304 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 17:59:38,305 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 17:59:38,306 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 17:59:38,307 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 17:59:38,308 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 17:59:38,309 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 17:59:38,311 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 17:59:38,311 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 17:59:38,312 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 17:59:38,312 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 17:59:38,312 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 17:59:38,313 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 17:59:38,313 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 17:59:38,314 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 17:59:38,314 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 17:59:38,315 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 17:59:38,323 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 17:59:38,323 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 17:59:38,324 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 17:59:38,324 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 17:59:38,324 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 17:59:38,326 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 17:59:38,326 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 17:59:38,327 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-12-13 17:59:38,344 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 17:59:38,344 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 17:59:38,345 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 17:59:38,345 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 17:59:38,345 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 17:59:38,346 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 17:59:38,346 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 17:59:38,346 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 17:59:38,347 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 17:59:38,347 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 17:59:38,347 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 17:59:38,347 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 17:59:38,347 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 17:59:38,348 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 17:59:38,348 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 17:59:38,348 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 17:59:38,348 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 17:59:38,348 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 17:59:38,348 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 17:59:38,348 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 17:59:38,349 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 17:59:38,349 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 17:59:38,349 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 17:59:38,349 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 17:59:38,349 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 17:59:38,349 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 17:59:38,349 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 17:59:38,349 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:59:38,350 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 17:59:38,350 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 17:59:38,350 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 17:59:38,350 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 17:59:38,350 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 17:59:38,350 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 17:59:38,350 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 17:59:38,350 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 17:59:38,350 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 17:59:38,351 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_31b8d579-5be7-4120-936f-1b43e6180a14/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9bfd96daa3950021158d7079dc25a62741fa5d5a7f9e521049c1a78760db50f1 [2022-12-13 17:59:38,582 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 17:59:38,597 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 17:59:38,598 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 17:59:38,599 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 17:59:38,600 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 17:59:38,601 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-wmm/mix043.oepc.i [2022-12-13 17:59:41,223 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 17:59:41,458 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 17:59:41,459 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/sv-benchmarks/c/pthread-wmm/mix043.oepc.i [2022-12-13 17:59:41,471 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/bin/uautomizer-uyxdKDjOR8/data/ec7dac92e/7fe0d97ee06c4a07a786e5cfd55c5851/FLAG3e6530878 [2022-12-13 17:59:41,485 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/bin/uautomizer-uyxdKDjOR8/data/ec7dac92e/7fe0d97ee06c4a07a786e5cfd55c5851 [2022-12-13 17:59:41,487 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 17:59:41,489 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 17:59:41,490 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 17:59:41,490 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 17:59:41,494 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 17:59:41,494 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:59:41" (1/1) ... [2022-12-13 17:59:41,495 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e72ff87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:59:41, skipping insertion in model container [2022-12-13 17:59:41,496 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:59:41" (1/1) ... [2022-12-13 17:59:41,503 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 17:59:41,541 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 17:59:41,676 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_31b8d579-5be7-4120-936f-1b43e6180a14/sv-benchmarks/c/pthread-wmm/mix043.oepc.i[945,958] [2022-12-13 17:59:41,823 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:41,826 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:41,826 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:41,826 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:41,827 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:41,829 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:41,829 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:41,830 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:41,831 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:41,831 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:41,831 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:41,832 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:41,832 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:41,834 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:41,835 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:41,835 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:41,836 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:41,836 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:41,836 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:41,837 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:41,837 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:41,839 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:41,840 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:41,840 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:41,841 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:41,841 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:41,841 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:41,842 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:41,842 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:41,842 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:41,842 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:41,849 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:41,850 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:41,852 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:41,852 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:41,853 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:41,860 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:41,860 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:41,861 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:41,863 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:41,863 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:41,864 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:41,865 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:59:41,879 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 17:59:41,891 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_31b8d579-5be7-4120-936f-1b43e6180a14/sv-benchmarks/c/pthread-wmm/mix043.oepc.i[945,958] [2022-12-13 17:59:41,914 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:41,915 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:41,915 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:41,916 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:41,916 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:41,918 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:41,918 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:41,918 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:41,919 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:41,920 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:41,920 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:41,920 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:41,921 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:41,922 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:41,922 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:41,923 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:41,923 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:41,924 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:41,924 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:41,924 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:41,925 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:41,926 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:41,926 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:41,927 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:41,927 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:41,927 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:41,928 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:41,928 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:41,938 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:41,939 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:41,939 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:41,943 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:41,943 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:41,944 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:41,945 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:41,945 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:41,949 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:41,949 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:41,950 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:41,951 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:41,951 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:59:41,952 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:59:41,953 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:59:41,993 INFO L208 MainTranslator]: Completed translation [2022-12-13 17:59:41,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:59:41 WrapperNode [2022-12-13 17:59:41,994 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 17:59:41,995 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 17:59:41,995 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 17:59:41,995 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 17:59:42,002 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:59:41" (1/1) ... [2022-12-13 17:59:42,018 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:59:41" (1/1) ... [2022-12-13 17:59:42,040 INFO L138 Inliner]: procedures = 180, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 147 [2022-12-13 17:59:42,041 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 17:59:42,041 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 17:59:42,041 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 17:59:42,041 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 17:59:42,050 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:59:41" (1/1) ... [2022-12-13 17:59:42,050 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:59:41" (1/1) ... [2022-12-13 17:59:42,054 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:59:41" (1/1) ... [2022-12-13 17:59:42,054 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:59:41" (1/1) ... [2022-12-13 17:59:42,063 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:59:41" (1/1) ... [2022-12-13 17:59:42,065 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:59:41" (1/1) ... [2022-12-13 17:59:42,067 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:59:41" (1/1) ... [2022-12-13 17:59:42,069 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:59:41" (1/1) ... [2022-12-13 17:59:42,072 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 17:59:42,073 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 17:59:42,073 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 17:59:42,073 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 17:59:42,074 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:59:41" (1/1) ... [2022-12-13 17:59:42,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:59:42,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:59:42,102 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 17:59:42,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 17:59:42,128 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 17:59:42,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 17:59:42,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 17:59:42,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 17:59:42,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-13 17:59:42,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 17:59:42,129 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 17:59:42,129 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 17:59:42,129 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 17:59:42,129 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 17:59:42,129 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-13 17:59:42,129 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-13 17:59:42,129 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-13 17:59:42,129 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-13 17:59:42,129 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 17:59:42,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 17:59:42,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 17:59:42,130 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 17:59:42,245 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 17:59:42,247 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 17:59:42,557 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 17:59:42,648 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 17:59:42,649 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 17:59:42,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:59:42 BoogieIcfgContainer [2022-12-13 17:59:42,651 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 17:59:42,652 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 17:59:42,653 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 17:59:42,655 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 17:59:42,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 05:59:41" (1/3) ... [2022-12-13 17:59:42,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4716e283 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:59:42, skipping insertion in model container [2022-12-13 17:59:42,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:59:41" (2/3) ... [2022-12-13 17:59:42,657 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4716e283 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:59:42, skipping insertion in model container [2022-12-13 17:59:42,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:59:42" (3/3) ... [2022-12-13 17:59:42,658 INFO L112 eAbstractionObserver]: Analyzing ICFG mix043.oepc.i [2022-12-13 17:59:42,677 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 17:59:42,677 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2022-12-13 17:59:42,678 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 17:59:42,729 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 17:59:42,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 164 places, 153 transitions, 326 flow [2022-12-13 17:59:42,813 INFO L130 PetriNetUnfolder]: 2/149 cut-off events. [2022-12-13 17:59:42,813 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 17:59:42,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 162 conditions, 149 events. 2/149 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 108 event pairs, 0 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 102. Up to 2 conditions per place. [2022-12-13 17:59:42,819 INFO L82 GeneralOperation]: Start removeDead. Operand has 164 places, 153 transitions, 326 flow [2022-12-13 17:59:42,823 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 160 places, 149 transitions, 310 flow [2022-12-13 17:59:42,827 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 17:59:42,837 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 160 places, 149 transitions, 310 flow [2022-12-13 17:59:42,840 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 160 places, 149 transitions, 310 flow [2022-12-13 17:59:42,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 160 places, 149 transitions, 310 flow [2022-12-13 17:59:42,874 INFO L130 PetriNetUnfolder]: 2/149 cut-off events. [2022-12-13 17:59:42,874 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 17:59:42,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 162 conditions, 149 events. 2/149 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 108 event pairs, 0 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 102. Up to 2 conditions per place. [2022-12-13 17:59:42,877 INFO L119 LiptonReduction]: Number of co-enabled transitions 3884 [2022-12-13 17:59:49,759 INFO L134 LiptonReduction]: Checked pairs total: 10868 [2022-12-13 17:59:49,759 INFO L136 LiptonReduction]: Total number of compositions: 140 [2022-12-13 17:59:49,773 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 17:59:49,779 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;@6772177d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 17:59:49,779 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-12-13 17:59:49,780 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 17:59:49,780 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 17:59:49,780 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:59:49,781 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 17:59:49,781 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:59:49,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:59:49,785 INFO L85 PathProgramCache]: Analyzing trace with hash 634, now seen corresponding path program 1 times [2022-12-13 17:59:49,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 17:59:49,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [798885174] [2022-12-13 17:59:49,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:59:49,793 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 17:59:49,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 17:59:49,794 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/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 17:59:49,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/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 17:59:49,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:49,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 17:59:49,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:59:49,853 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 17:59:49,853 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:59:49,853 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 17:59:49,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [798885174] [2022-12-13 17:59:49,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [798885174] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:59:49,854 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:59:49,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 17:59:49,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262532245] [2022-12-13 17:59:49,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:59:49,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 17:59:49,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 17:59:49,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 17:59:49,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 17:59:49,883 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 293 [2022-12-13 17:59:49,885 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 42 transitions, 96 flow. Second operand has 2 states, 2 states have (on average 138.5) internal successors, (277), 2 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:49,885 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:59:49,885 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 293 [2022-12-13 17:59:49,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:59:51,382 INFO L130 PetriNetUnfolder]: 9959/13469 cut-off events. [2022-12-13 17:59:51,383 INFO L131 PetriNetUnfolder]: For 82/82 co-relation queries the response was YES. [2022-12-13 17:59:51,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27057 conditions, 13469 events. 9959/13469 cut-off events. For 82/82 co-relation queries the response was YES. Maximal size of possible extension queue 610. Compared 70901 event pairs, 9959 based on Foata normal form. 400/11845 useless extension candidates. Maximal degree in co-relation 27045. Up to 13371 conditions per place. [2022-12-13 17:59:51,452 INFO L137 encePairwiseOnDemand]: 284/293 looper letters, 29 selfloop transitions, 0 changer transitions 0/33 dead transitions. [2022-12-13 17:59:51,452 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 33 transitions, 136 flow [2022-12-13 17:59:51,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 17:59:51,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 17:59:51,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 314 transitions. [2022-12-13 17:59:51,464 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5358361774744027 [2022-12-13 17:59:51,465 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 314 transitions. [2022-12-13 17:59:51,465 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 314 transitions. [2022-12-13 17:59:51,467 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:59:51,469 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 314 transitions. [2022-12-13 17:59:51,472 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 157.0) internal successors, (314), 2 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:51,477 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 293.0) internal successors, (879), 3 states have internal predecessors, (879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:51,477 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 293.0) internal successors, (879), 3 states have internal predecessors, (879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:51,479 INFO L175 Difference]: Start difference. First operand has 54 places, 42 transitions, 96 flow. Second operand 2 states and 314 transitions. [2022-12-13 17:59:51,480 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 33 transitions, 136 flow [2022-12-13 17:59:51,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 33 transitions, 132 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 17:59:51,485 INFO L231 Difference]: Finished difference. Result has 43 places, 33 transitions, 74 flow [2022-12-13 17:59:51,487 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=293, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=74, PETRI_PLACES=43, PETRI_TRANSITIONS=33} [2022-12-13 17:59:51,490 INFO L288 CegarLoopForPetriNet]: 54 programPoint places, -11 predicate places. [2022-12-13 17:59:51,490 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 33 transitions, 74 flow [2022-12-13 17:59:51,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 138.5) internal successors, (277), 2 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:51,491 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:59:51,491 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 17:59:51,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/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 17:59:51,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/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 17:59:51,692 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:59:51,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:59:51,693 INFO L85 PathProgramCache]: Analyzing trace with hash 623110, now seen corresponding path program 1 times [2022-12-13 17:59:51,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 17:59:51,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [356494174] [2022-12-13 17:59:51,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:59:51,694 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 17:59:51,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 17:59:51,695 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/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 17:59:51,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/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 17:59:51,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:51,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 17:59:51,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:59:51,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:59:51,765 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:59:51,766 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 17:59:51,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [356494174] [2022-12-13 17:59:51,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [356494174] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:59:51,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:59:51,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 17:59:51,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731956530] [2022-12-13 17:59:51,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:59:51,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:59:51,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 17:59:51,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:59:51,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:59:51,771 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 293 [2022-12-13 17:59:51,771 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 33 transitions, 74 flow. Second operand has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:51,771 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:59:51,772 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 293 [2022-12-13 17:59:51,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:59:52,778 INFO L130 PetriNetUnfolder]: 7831/10658 cut-off events. [2022-12-13 17:59:52,778 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 17:59:52,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21391 conditions, 10658 events. 7831/10658 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 491. Compared 54055 event pairs, 4023 based on Foata normal form. 0/9670 useless extension candidates. Maximal degree in co-relation 21388. Up to 8431 conditions per place. [2022-12-13 17:59:52,808 INFO L137 encePairwiseOnDemand]: 290/293 looper letters, 45 selfloop transitions, 2 changer transitions 4/55 dead transitions. [2022-12-13 17:59:52,808 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 55 transitions, 226 flow [2022-12-13 17:59:52,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:59:52,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 17:59:52,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 463 transitions. [2022-12-13 17:59:52,810 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5267349260523322 [2022-12-13 17:59:52,810 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 463 transitions. [2022-12-13 17:59:52,810 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 463 transitions. [2022-12-13 17:59:52,811 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:59:52,811 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 463 transitions. [2022-12-13 17:59:52,812 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 154.33333333333334) internal successors, (463), 3 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 17:59:52,815 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 293.0) internal successors, (1172), 4 states have internal predecessors, (1172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:52,816 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 293.0) internal successors, (1172), 4 states have internal predecessors, (1172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:52,816 INFO L175 Difference]: Start difference. First operand has 43 places, 33 transitions, 74 flow. Second operand 3 states and 463 transitions. [2022-12-13 17:59:52,816 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 55 transitions, 226 flow [2022-12-13 17:59:52,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 55 transitions, 226 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 17:59:52,817 INFO L231 Difference]: Finished difference. Result has 44 places, 30 transitions, 72 flow [2022-12-13 17:59:52,818 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=293, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=72, PETRI_PLACES=44, PETRI_TRANSITIONS=30} [2022-12-13 17:59:52,818 INFO L288 CegarLoopForPetriNet]: 54 programPoint places, -10 predicate places. [2022-12-13 17:59:52,818 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 30 transitions, 72 flow [2022-12-13 17:59:52,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:52,819 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:59:52,819 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:59:52,830 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/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 17:59:53,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/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 17:59:53,021 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:59:53,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:59:53,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1718386932, now seen corresponding path program 1 times [2022-12-13 17:59:53,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 17:59:53,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1608226657] [2022-12-13 17:59:53,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:59:53,026 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 17:59:53,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 17:59:53,029 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/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 17:59:53,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/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 17:59:53,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:53,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 17:59:53,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:59:53,187 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 17:59:53,187 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:59:53,187 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 17:59:53,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1608226657] [2022-12-13 17:59:53,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1608226657] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:59:53,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:59:53,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:59:53,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532615670] [2022-12-13 17:59:53,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:59:53,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:59:53,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 17:59:53,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:59:53,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:59:53,199 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 293 [2022-12-13 17:59:53,199 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 30 transitions, 72 flow. Second operand has 4 states, 4 states have (on average 134.0) internal successors, (536), 4 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:53,199 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:59:53,200 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 293 [2022-12-13 17:59:53,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:59:53,792 INFO L130 PetriNetUnfolder]: 4483/6404 cut-off events. [2022-12-13 17:59:53,793 INFO L131 PetriNetUnfolder]: For 421/421 co-relation queries the response was YES. [2022-12-13 17:59:53,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13353 conditions, 6404 events. 4483/6404 cut-off events. For 421/421 co-relation queries the response was YES. Maximal size of possible extension queue 327. Compared 34864 event pairs, 655 based on Foata normal form. 320/6469 useless extension candidates. Maximal degree in co-relation 13349. Up to 3781 conditions per place. [2022-12-13 17:59:53,810 INFO L137 encePairwiseOnDemand]: 286/293 looper letters, 52 selfloop transitions, 6 changer transitions 1/63 dead transitions. [2022-12-13 17:59:53,810 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 63 transitions, 266 flow [2022-12-13 17:59:53,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:59:53,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 17:59:53,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 585 transitions. [2022-12-13 17:59:53,812 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4991467576791809 [2022-12-13 17:59:53,812 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 585 transitions. [2022-12-13 17:59:53,812 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 585 transitions. [2022-12-13 17:59:53,812 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:59:53,812 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 585 transitions. [2022-12-13 17:59:53,813 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 146.25) internal successors, (585), 4 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:53,815 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 293.0) internal successors, (1465), 5 states have internal predecessors, (1465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:53,816 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 293.0) internal successors, (1465), 5 states have internal predecessors, (1465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:53,816 INFO L175 Difference]: Start difference. First operand has 44 places, 30 transitions, 72 flow. Second operand 4 states and 585 transitions. [2022-12-13 17:59:53,816 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 63 transitions, 266 flow [2022-12-13 17:59:53,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 63 transitions, 258 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 17:59:53,817 INFO L231 Difference]: Finished difference. Result has 45 places, 34 transitions, 110 flow [2022-12-13 17:59:53,817 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=293, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=110, PETRI_PLACES=45, PETRI_TRANSITIONS=34} [2022-12-13 17:59:53,817 INFO L288 CegarLoopForPetriNet]: 54 programPoint places, -9 predicate places. [2022-12-13 17:59:53,818 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 34 transitions, 110 flow [2022-12-13 17:59:53,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 134.0) internal successors, (536), 4 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:53,818 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:59:53,818 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:59:53,827 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/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 17:59:54,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/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 17:59:54,020 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:59:54,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:59:54,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1441411893, now seen corresponding path program 1 times [2022-12-13 17:59:54,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 17:59:54,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1219948135] [2022-12-13 17:59:54,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:59:54,024 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 17:59:54,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 17:59:54,027 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/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 17:59:54,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/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 17:59:54,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:54,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 17:59:54,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:59:54,225 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 17:59:54,226 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:59:54,226 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 17:59:54,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1219948135] [2022-12-13 17:59:54,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1219948135] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:59:54,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:59:54,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 17:59:54,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487682032] [2022-12-13 17:59:54,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:59:54,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 17:59:54,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 17:59:54,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 17:59:54,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:59:54,247 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 293 [2022-12-13 17:59:54,248 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 34 transitions, 110 flow. Second operand has 5 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:54,248 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:59:54,248 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 293 [2022-12-13 17:59:54,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:59:54,675 INFO L130 PetriNetUnfolder]: 2161/3299 cut-off events. [2022-12-13 17:59:54,676 INFO L131 PetriNetUnfolder]: For 957/957 co-relation queries the response was YES. [2022-12-13 17:59:54,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8306 conditions, 3299 events. 2161/3299 cut-off events. For 957/957 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 17383 event pairs, 328 based on Foata normal form. 212/3418 useless extension candidates. Maximal degree in co-relation 8300. Up to 1081 conditions per place. [2022-12-13 17:59:54,684 INFO L137 encePairwiseOnDemand]: 286/293 looper letters, 65 selfloop transitions, 10 changer transitions 1/80 dead transitions. [2022-12-13 17:59:54,684 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 80 transitions, 383 flow [2022-12-13 17:59:54,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 17:59:54,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 17:59:54,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 733 transitions. [2022-12-13 17:59:54,686 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5003412969283276 [2022-12-13 17:59:54,686 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 733 transitions. [2022-12-13 17:59:54,687 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 733 transitions. [2022-12-13 17:59:54,687 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:59:54,687 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 733 transitions. [2022-12-13 17:59:54,688 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 146.6) internal successors, (733), 5 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:54,690 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 293.0) internal successors, (1758), 6 states have internal predecessors, (1758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:54,690 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 293.0) internal successors, (1758), 6 states have internal predecessors, (1758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:54,690 INFO L175 Difference]: Start difference. First operand has 45 places, 34 transitions, 110 flow. Second operand 5 states and 733 transitions. [2022-12-13 17:59:54,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 80 transitions, 383 flow [2022-12-13 17:59:54,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 80 transitions, 372 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-12-13 17:59:54,693 INFO L231 Difference]: Finished difference. Result has 49 places, 38 transitions, 162 flow [2022-12-13 17:59:54,693 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=293, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=162, PETRI_PLACES=49, PETRI_TRANSITIONS=38} [2022-12-13 17:59:54,694 INFO L288 CegarLoopForPetriNet]: 54 programPoint places, -5 predicate places. [2022-12-13 17:59:54,694 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 38 transitions, 162 flow [2022-12-13 17:59:54,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:54,695 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:59:54,695 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:59:54,706 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/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)] Forceful destruction successful, exit code 0 [2022-12-13 17:59:54,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/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 17:59:54,895 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:59:54,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:59:54,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1969689795, now seen corresponding path program 1 times [2022-12-13 17:59:54,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 17:59:54,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [15159901] [2022-12-13 17:59:54,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:59:54,896 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 17:59:54,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 17:59:54,897 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/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 17:59:54,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/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 17:59:54,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:54,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 17:59:54,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:59:55,017 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 17:59:55,017 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:59:55,017 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 17:59:55,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [15159901] [2022-12-13 17:59:55,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [15159901] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:59:55,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:59:55,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 17:59:55,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075380703] [2022-12-13 17:59:55,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:59:55,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:59:55,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 17:59:55,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:59:55,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:59:55,040 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 293 [2022-12-13 17:59:55,041 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 38 transitions, 162 flow. Second operand has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:55,041 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:59:55,042 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 293 [2022-12-13 17:59:55,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:59:55,492 INFO L130 PetriNetUnfolder]: 1189/1877 cut-off events. [2022-12-13 17:59:55,493 INFO L131 PetriNetUnfolder]: For 1589/1589 co-relation queries the response was YES. [2022-12-13 17:59:55,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5408 conditions, 1877 events. 1189/1877 cut-off events. For 1589/1589 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 9227 event pairs, 326 based on Foata normal form. 77/1924 useless extension candidates. Maximal degree in co-relation 5401. Up to 630 conditions per place. [2022-12-13 17:59:55,498 INFO L137 encePairwiseOnDemand]: 286/293 looper letters, 76 selfloop transitions, 14 changer transitions 1/95 dead transitions. [2022-12-13 17:59:55,498 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 95 transitions, 506 flow [2022-12-13 17:59:55,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 17:59:55,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 17:59:55,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 879 transitions. [2022-12-13 17:59:55,500 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5 [2022-12-13 17:59:55,500 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 879 transitions. [2022-12-13 17:59:55,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 879 transitions. [2022-12-13 17:59:55,501 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:59:55,501 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 879 transitions. [2022-12-13 17:59:55,502 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 146.5) internal successors, (879), 6 states have internal predecessors, (879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:55,504 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 293.0) internal successors, (2051), 7 states have internal predecessors, (2051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:55,504 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 293.0) internal successors, (2051), 7 states have internal predecessors, (2051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:55,505 INFO L175 Difference]: Start difference. First operand has 49 places, 38 transitions, 162 flow. Second operand 6 states and 879 transitions. [2022-12-13 17:59:55,505 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 95 transitions, 506 flow [2022-12-13 17:59:55,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 95 transitions, 476 flow, removed 5 selfloop flow, removed 4 redundant places. [2022-12-13 17:59:55,514 INFO L231 Difference]: Finished difference. Result has 52 places, 42 transitions, 212 flow [2022-12-13 17:59:55,514 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=293, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=212, PETRI_PLACES=52, PETRI_TRANSITIONS=42} [2022-12-13 17:59:55,515 INFO L288 CegarLoopForPetriNet]: 54 programPoint places, -2 predicate places. [2022-12-13 17:59:55,515 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 42 transitions, 212 flow [2022-12-13 17:59:55,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:55,515 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:59:55,515 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:59:55,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/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)] Forceful destruction successful, exit code 0 [2022-12-13 17:59:55,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/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 17:59:55,717 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:59:55,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:59:55,718 INFO L85 PathProgramCache]: Analyzing trace with hash -40595431, now seen corresponding path program 1 times [2022-12-13 17:59:55,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 17:59:55,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [297204094] [2022-12-13 17:59:55,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:59:55,721 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 17:59:55,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 17:59:55,722 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/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 17:59:55,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/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 17:59:55,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:55,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 17:59:55,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:59:55,934 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 17:59:55,934 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:59:55,934 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 17:59:55,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [297204094] [2022-12-13 17:59:55,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [297204094] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:59:55,934 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:59:55,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 17:59:55,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66885043] [2022-12-13 17:59:55,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:59:55,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 17:59:55,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 17:59:55,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 17:59:55,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 17:59:55,949 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 293 [2022-12-13 17:59:55,949 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 42 transitions, 212 flow. Second operand has 7 states, 7 states have (on average 134.0) internal successors, (938), 7 states have internal predecessors, (938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:55,949 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:59:55,949 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 293 [2022-12-13 17:59:55,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:59:56,325 INFO L130 PetriNetUnfolder]: 1011/1571 cut-off events. [2022-12-13 17:59:56,325 INFO L131 PetriNetUnfolder]: For 1446/1446 co-relation queries the response was YES. [2022-12-13 17:59:56,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4613 conditions, 1571 events. 1011/1571 cut-off events. For 1446/1446 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 7518 event pairs, 326 based on Foata normal form. 14/1568 useless extension candidates. Maximal degree in co-relation 4605. Up to 630 conditions per place. [2022-12-13 17:59:56,330 INFO L137 encePairwiseOnDemand]: 286/293 looper letters, 59 selfloop transitions, 18 changer transitions 1/82 dead transitions. [2022-12-13 17:59:56,330 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 82 transitions, 464 flow [2022-12-13 17:59:56,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 17:59:56,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 17:59:56,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 997 transitions. [2022-12-13 17:59:56,332 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48610433934666014 [2022-12-13 17:59:56,332 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 997 transitions. [2022-12-13 17:59:56,332 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 997 transitions. [2022-12-13 17:59:56,333 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:59:56,333 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 997 transitions. [2022-12-13 17:59:56,334 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 142.42857142857142) internal successors, (997), 7 states have internal predecessors, (997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:56,335 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 293.0) internal successors, (2344), 8 states have internal predecessors, (2344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:56,336 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 293.0) internal successors, (2344), 8 states have internal predecessors, (2344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:56,336 INFO L175 Difference]: Start difference. First operand has 52 places, 42 transitions, 212 flow. Second operand 7 states and 997 transitions. [2022-12-13 17:59:56,336 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 82 transitions, 464 flow [2022-12-13 17:59:56,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 82 transitions, 418 flow, removed 9 selfloop flow, removed 5 redundant places. [2022-12-13 17:59:56,345 INFO L231 Difference]: Finished difference. Result has 55 places, 42 transitions, 222 flow [2022-12-13 17:59:56,345 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=293, PETRI_DIFFERENCE_MINUEND_FLOW=169, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=222, PETRI_PLACES=55, PETRI_TRANSITIONS=42} [2022-12-13 17:59:56,345 INFO L288 CegarLoopForPetriNet]: 54 programPoint places, 1 predicate places. [2022-12-13 17:59:56,345 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 42 transitions, 222 flow [2022-12-13 17:59:56,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 134.0) internal successors, (938), 7 states have internal predecessors, (938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:56,346 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:59:56,346 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:59:56,355 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/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 17:59:56,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/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 17:59:56,548 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:59:56,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:59:56,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1526878688, now seen corresponding path program 1 times [2022-12-13 17:59:56,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 17:59:56,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2112118335] [2022-12-13 17:59:56,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:59:56,551 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 17:59:56,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 17:59:56,554 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/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 17:59:56,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/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 17:59:56,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:56,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-13 17:59:56,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:59:57,020 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 17:59:57,020 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:59:57,020 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 17:59:57,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2112118335] [2022-12-13 17:59:57,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2112118335] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:59:57,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:59:57,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 17:59:57,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928644957] [2022-12-13 17:59:57,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:59:57,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 17:59:57,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 17:59:57,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 17:59:57,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-12-13 17:59:57,109 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 293 [2022-12-13 17:59:57,110 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 42 transitions, 222 flow. Second operand has 9 states, 9 states have (on average 132.77777777777777) internal successors, (1195), 9 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:57,110 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:59:57,111 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 293 [2022-12-13 17:59:57,111 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:59:57,636 INFO L130 PetriNetUnfolder]: 1159/1795 cut-off events. [2022-12-13 17:59:57,636 INFO L131 PetriNetUnfolder]: For 1957/1957 co-relation queries the response was YES. [2022-12-13 17:59:57,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5397 conditions, 1795 events. 1159/1795 cut-off events. For 1957/1957 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 8492 event pairs, 195 based on Foata normal form. 0/1790 useless extension candidates. Maximal degree in co-relation 5388. Up to 773 conditions per place. [2022-12-13 17:59:57,643 INFO L137 encePairwiseOnDemand]: 286/293 looper letters, 100 selfloop transitions, 7 changer transitions 0/111 dead transitions. [2022-12-13 17:59:57,643 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 111 transitions, 820 flow [2022-12-13 17:59:57,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 17:59:57,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 17:59:57,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1112 transitions. [2022-12-13 17:59:57,647 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47440273037542663 [2022-12-13 17:59:57,647 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1112 transitions. [2022-12-13 17:59:57,647 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1112 transitions. [2022-12-13 17:59:57,648 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:59:57,648 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1112 transitions. [2022-12-13 17:59:57,650 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 139.0) internal successors, (1112), 8 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:57,652 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 293.0) internal successors, (2637), 9 states have internal predecessors, (2637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:57,652 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 293.0) internal successors, (2637), 9 states have internal predecessors, (2637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:57,652 INFO L175 Difference]: Start difference. First operand has 55 places, 42 transitions, 222 flow. Second operand 8 states and 1112 transitions. [2022-12-13 17:59:57,653 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 111 transitions, 820 flow [2022-12-13 17:59:57,663 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 111 transitions, 554 flow, removed 34 selfloop flow, removed 11 redundant places. [2022-12-13 17:59:57,664 INFO L231 Difference]: Finished difference. Result has 54 places, 45 transitions, 156 flow [2022-12-13 17:59:57,664 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=293, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=156, PETRI_PLACES=54, PETRI_TRANSITIONS=45} [2022-12-13 17:59:57,664 INFO L288 CegarLoopForPetriNet]: 54 programPoint places, 0 predicate places. [2022-12-13 17:59:57,665 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 45 transitions, 156 flow [2022-12-13 17:59:57,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 132.77777777777777) internal successors, (1195), 9 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:57,665 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:59:57,666 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:59:57,674 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/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 17:59:57,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/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 17:59:57,868 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:59:57,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:59:57,869 INFO L85 PathProgramCache]: Analyzing trace with hash -81302934, now seen corresponding path program 2 times [2022-12-13 17:59:57,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 17:59:57,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1481246220] [2022-12-13 17:59:57,873 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 17:59:57,874 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 17:59:57,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 17:59:57,878 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/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 17:59:57,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/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 17:59:58,012 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 17:59:58,013 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 17:59:58,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 17:59:58,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:59:58,049 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 17:59:58,049 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:59:58,049 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 17:59:58,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1481246220] [2022-12-13 17:59:58,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1481246220] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:59:58,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:59:58,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 17:59:58,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195478233] [2022-12-13 17:59:58,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:59:58,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 17:59:58,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 17:59:58,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 17:59:58,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:59:58,060 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 293 [2022-12-13 17:59:58,060 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 45 transitions, 156 flow. Second operand has 5 states, 5 states have (on average 137.2) internal successors, (686), 5 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:58,060 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:59:58,060 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 293 [2022-12-13 17:59:58,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:59:58,569 INFO L130 PetriNetUnfolder]: 2053/3255 cut-off events. [2022-12-13 17:59:58,569 INFO L131 PetriNetUnfolder]: For 1408/1408 co-relation queries the response was YES. [2022-12-13 17:59:58,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8146 conditions, 3255 events. 2053/3255 cut-off events. For 1408/1408 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 17880 event pairs, 339 based on Foata normal form. 1/3255 useless extension candidates. Maximal degree in co-relation 8139. Up to 1605 conditions per place. [2022-12-13 17:59:58,581 INFO L137 encePairwiseOnDemand]: 289/293 looper letters, 90 selfloop transitions, 4 changer transitions 0/97 dead transitions. [2022-12-13 17:59:58,581 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 97 transitions, 532 flow [2022-12-13 17:59:58,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 17:59:58,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 17:59:58,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 718 transitions. [2022-12-13 17:59:58,583 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4901023890784983 [2022-12-13 17:59:58,583 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 718 transitions. [2022-12-13 17:59:58,584 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 718 transitions. [2022-12-13 17:59:58,584 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:59:58,584 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 718 transitions. [2022-12-13 17:59:58,585 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 143.6) internal successors, (718), 5 states have internal predecessors, (718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:58,587 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 293.0) internal successors, (1758), 6 states have internal predecessors, (1758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:58,587 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 293.0) internal successors, (1758), 6 states have internal predecessors, (1758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:58,587 INFO L175 Difference]: Start difference. First operand has 54 places, 45 transitions, 156 flow. Second operand 5 states and 718 transitions. [2022-12-13 17:59:58,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 97 transitions, 532 flow [2022-12-13 17:59:58,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 97 transitions, 519 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 17:59:58,590 INFO L231 Difference]: Finished difference. Result has 58 places, 48 transitions, 185 flow [2022-12-13 17:59:58,590 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=293, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=185, PETRI_PLACES=58, PETRI_TRANSITIONS=48} [2022-12-13 17:59:58,590 INFO L288 CegarLoopForPetriNet]: 54 programPoint places, 4 predicate places. [2022-12-13 17:59:58,591 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 48 transitions, 185 flow [2022-12-13 17:59:58,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 137.2) internal successors, (686), 5 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:58,591 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:59:58,591 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:59:58,603 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/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 17:59:58,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/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 17:59:58,793 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:59:58,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:59:58,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1798712978, now seen corresponding path program 3 times [2022-12-13 17:59:58,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 17:59:58,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1961614409] [2022-12-13 17:59:58,797 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 17:59:58,798 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 17:59:58,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 17:59:58,802 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/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 17:59:58,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/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 17:59:58,900 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-13 17:59:58,900 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 17:59:58,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 17:59:58,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:59:58,942 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 17:59:58,942 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:59:58,942 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 17:59:58,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1961614409] [2022-12-13 17:59:58,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1961614409] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:59:58,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:59:58,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 17:59:58,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514281342] [2022-12-13 17:59:58,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:59:58,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 17:59:58,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 17:59:58,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 17:59:58,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:59:58,955 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 293 [2022-12-13 17:59:58,956 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 48 transitions, 185 flow. Second operand has 5 states, 5 states have (on average 137.2) internal successors, (686), 5 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:58,956 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:59:58,956 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 293 [2022-12-13 17:59:58,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:59:59,570 INFO L130 PetriNetUnfolder]: 3274/5123 cut-off events. [2022-12-13 17:59:59,570 INFO L131 PetriNetUnfolder]: For 2028/2028 co-relation queries the response was YES. [2022-12-13 17:59:59,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13122 conditions, 5123 events. 3274/5123 cut-off events. For 2028/2028 co-relation queries the response was YES. Maximal size of possible extension queue 254. Compared 30143 event pairs, 759 based on Foata normal form. 1/5081 useless extension candidates. Maximal degree in co-relation 13112. Up to 2707 conditions per place. [2022-12-13 17:59:59,589 INFO L137 encePairwiseOnDemand]: 289/293 looper letters, 96 selfloop transitions, 6 changer transitions 0/106 dead transitions. [2022-12-13 17:59:59,590 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 106 transitions, 610 flow [2022-12-13 17:59:59,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 17:59:59,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 17:59:59,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 722 transitions. [2022-12-13 17:59:59,591 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4928327645051195 [2022-12-13 17:59:59,591 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 722 transitions. [2022-12-13 17:59:59,592 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 722 transitions. [2022-12-13 17:59:59,592 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:59:59,592 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 722 transitions. [2022-12-13 17:59:59,593 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 144.4) internal successors, (722), 5 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:59,594 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 293.0) internal successors, (1758), 6 states have internal predecessors, (1758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:59,594 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 293.0) internal successors, (1758), 6 states have internal predecessors, (1758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:59,594 INFO L175 Difference]: Start difference. First operand has 58 places, 48 transitions, 185 flow. Second operand 5 states and 722 transitions. [2022-12-13 17:59:59,594 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 106 transitions, 610 flow [2022-12-13 17:59:59,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 106 transitions, 607 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 17:59:59,598 INFO L231 Difference]: Finished difference. Result has 64 places, 53 transitions, 253 flow [2022-12-13 17:59:59,598 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=293, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=253, PETRI_PLACES=64, PETRI_TRANSITIONS=53} [2022-12-13 17:59:59,598 INFO L288 CegarLoopForPetriNet]: 54 programPoint places, 10 predicate places. [2022-12-13 17:59:59,599 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 53 transitions, 253 flow [2022-12-13 17:59:59,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 137.2) internal successors, (686), 5 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:59:59,599 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:59:59,599 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:59:59,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/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)] Forceful destruction successful, exit code 0 [2022-12-13 17:59:59,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/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 17:59:59,800 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:59:59,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:59:59,801 INFO L85 PathProgramCache]: Analyzing trace with hash 179640346, now seen corresponding path program 4 times [2022-12-13 17:59:59,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 17:59:59,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [4899138] [2022-12-13 17:59:59,802 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 17:59:59,802 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 17:59:59,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 17:59:59,804 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/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 17:59:59,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-12-13 17:59:59,969 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 17:59:59,970 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 17:59:59,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 17:59:59,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:59:59,993 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 17:59:59,993 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:59:59,993 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 17:59:59,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [4899138] [2022-12-13 17:59:59,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [4899138] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:59:59,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:59:59,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:59:59,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492761876] [2022-12-13 17:59:59,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:59:59,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:59:59,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 17:59:59,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:59:59,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 18:00:00,003 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 293 [2022-12-13 18:00:00,004 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 53 transitions, 253 flow. Second operand has 4 states, 4 states have (on average 139.5) internal successors, (558), 4 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 18:00:00,004 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:00:00,004 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 293 [2022-12-13 18:00:00,004 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:00:00,759 INFO L130 PetriNetUnfolder]: 5141/8068 cut-off events. [2022-12-13 18:00:00,759 INFO L131 PetriNetUnfolder]: For 3485/3490 co-relation queries the response was YES. [2022-12-13 18:00:00,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20937 conditions, 8068 events. 5141/8068 cut-off events. For 3485/3490 co-relation queries the response was YES. Maximal size of possible extension queue 435. Compared 51970 event pairs, 1700 based on Foata normal form. 1/7928 useless extension candidates. Maximal degree in co-relation 20924. Up to 4126 conditions per place. [2022-12-13 18:00:00,805 INFO L137 encePairwiseOnDemand]: 289/293 looper letters, 77 selfloop transitions, 10 changer transitions 0/92 dead transitions. [2022-12-13 18:00:00,805 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 92 transitions, 625 flow [2022-12-13 18:00:00,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 18:00:00,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 18:00:00,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 578 transitions. [2022-12-13 18:00:00,806 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4931740614334471 [2022-12-13 18:00:00,807 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 578 transitions. [2022-12-13 18:00:00,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 578 transitions. [2022-12-13 18:00:00,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:00:00,807 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 578 transitions. [2022-12-13 18:00:00,808 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 144.5) internal successors, (578), 4 states have internal predecessors, (578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:00,809 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 293.0) internal successors, (1465), 5 states have internal predecessors, (1465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:00,809 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 293.0) internal successors, (1465), 5 states have internal predecessors, (1465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:00,809 INFO L175 Difference]: Start difference. First operand has 64 places, 53 transitions, 253 flow. Second operand 4 states and 578 transitions. [2022-12-13 18:00:00,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 92 transitions, 625 flow [2022-12-13 18:00:00,812 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 92 transitions, 623 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 18:00:00,813 INFO L231 Difference]: Finished difference. Result has 68 places, 62 transitions, 400 flow [2022-12-13 18:00:00,813 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=293, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=400, PETRI_PLACES=68, PETRI_TRANSITIONS=62} [2022-12-13 18:00:00,813 INFO L288 CegarLoopForPetriNet]: 54 programPoint places, 14 predicate places. [2022-12-13 18:00:00,814 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 62 transitions, 400 flow [2022-12-13 18:00:00,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 139.5) internal successors, (558), 4 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 18:00:00,814 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:00:00,814 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:00:00,822 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2022-12-13 18:00:01,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/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 18:00:01,015 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 18:00:01,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:00:01,016 INFO L85 PathProgramCache]: Analyzing trace with hash 179303897, now seen corresponding path program 1 times [2022-12-13 18:00:01,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 18:00:01,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1016571279] [2022-12-13 18:00:01,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:00:01,016 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 18:00:01,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 18:00:01,017 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/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 18:00:01,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-12-13 18:00:01,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:01,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 18 conjunts are in the unsatisfiable core [2022-12-13 18:00:01,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:00:01,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:00:01,651 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 18:00:01,651 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 18:00:01,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1016571279] [2022-12-13 18:00:01,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1016571279] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:00:01,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:00:01,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 18:00:01,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064323571] [2022-12-13 18:00:01,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:00:01,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 18:00:01,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 18:00:01,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 18:00:01,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 18:00:02,233 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 293 [2022-12-13 18:00:02,234 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 62 transitions, 400 flow. Second operand has 6 states, 6 states have (on average 122.16666666666667) internal successors, (733), 6 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:02,234 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:00:02,234 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 293 [2022-12-13 18:00:02,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:00:03,168 INFO L130 PetriNetUnfolder]: 4304/6902 cut-off events. [2022-12-13 18:00:03,168 INFO L131 PetriNetUnfolder]: For 2778/2778 co-relation queries the response was YES. [2022-12-13 18:00:03,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18363 conditions, 6902 events. 4304/6902 cut-off events. For 2778/2778 co-relation queries the response was YES. Maximal size of possible extension queue 395. Compared 45007 event pairs, 662 based on Foata normal form. 16/6808 useless extension candidates. Maximal degree in co-relation 18348. Up to 6116 conditions per place. [2022-12-13 18:00:03,184 INFO L137 encePairwiseOnDemand]: 288/293 looper letters, 47 selfloop transitions, 4 changer transitions 32/87 dead transitions. [2022-12-13 18:00:03,184 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 87 transitions, 652 flow [2022-12-13 18:00:03,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 18:00:03,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 18:00:03,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 752 transitions. [2022-12-13 18:00:03,186 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42775881683731515 [2022-12-13 18:00:03,186 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 752 transitions. [2022-12-13 18:00:03,186 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 752 transitions. [2022-12-13 18:00:03,186 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:00:03,186 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 752 transitions. [2022-12-13 18:00:03,187 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 125.33333333333333) internal successors, (752), 6 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:03,189 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 293.0) internal successors, (2051), 7 states have internal predecessors, (2051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:03,189 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 293.0) internal successors, (2051), 7 states have internal predecessors, (2051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:03,189 INFO L175 Difference]: Start difference. First operand has 68 places, 62 transitions, 400 flow. Second operand 6 states and 752 transitions. [2022-12-13 18:00:03,189 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 87 transitions, 652 flow [2022-12-13 18:00:03,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 87 transitions, 650 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 18:00:03,193 INFO L231 Difference]: Finished difference. Result has 71 places, 41 transitions, 164 flow [2022-12-13 18:00:03,193 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=293, PETRI_DIFFERENCE_MINUEND_FLOW=396, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=164, PETRI_PLACES=71, PETRI_TRANSITIONS=41} [2022-12-13 18:00:03,193 INFO L288 CegarLoopForPetriNet]: 54 programPoint places, 17 predicate places. [2022-12-13 18:00:03,193 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 41 transitions, 164 flow [2022-12-13 18:00:03,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 122.16666666666667) internal successors, (733), 6 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:03,194 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:00:03,194 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:00:03,203 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-12-13 18:00:03,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/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 18:00:03,395 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 18:00:03,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:00:03,396 INFO L85 PathProgramCache]: Analyzing trace with hash -2111302338, now seen corresponding path program 5 times [2022-12-13 18:00:03,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 18:00:03,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1288433416] [2022-12-13 18:00:03,398 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-13 18:00:03,399 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 18:00:03,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 18:00:03,402 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/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 18:00:03,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/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 (13)] Waiting until timeout for monitored process [2022-12-13 18:00:03,536 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 18:00:03,536 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2022-12-13 18:00:03,536 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 18:00:03,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:00:03,657 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 18:00:03,657 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 18:00:03,658 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (15 of 16 remaining) [2022-12-13 18:00:03,659 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (14 of 16 remaining) [2022-12-13 18:00:03,659 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 16 remaining) [2022-12-13 18:00:03,659 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 16 remaining) [2022-12-13 18:00:03,659 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 16 remaining) [2022-12-13 18:00:03,660 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 16 remaining) [2022-12-13 18:00:03,660 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 16 remaining) [2022-12-13 18:00:03,660 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 16 remaining) [2022-12-13 18:00:03,660 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 16 remaining) [2022-12-13 18:00:03,660 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 16 remaining) [2022-12-13 18:00:03,660 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK (5 of 16 remaining) [2022-12-13 18:00:03,660 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 16 remaining) [2022-12-13 18:00:03,660 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 16 remaining) [2022-12-13 18:00:03,661 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 16 remaining) [2022-12-13 18:00:03,661 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 16 remaining) [2022-12-13 18:00:03,661 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 16 remaining) [2022-12-13 18:00:03,670 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/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 (13)] Ended with exit code 0 [2022-12-13 18:00:03,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/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 18:00:03,862 INFO L445 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:00:03,866 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 18:00:03,866 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 18:00:03,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 06:00:03 BasicIcfg [2022-12-13 18:00:03,939 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 18:00:03,940 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 18:00:03,940 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 18:00:03,940 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 18:00:03,941 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:59:42" (3/4) ... [2022-12-13 18:00:03,943 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 18:00:03,943 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 18:00:03,944 INFO L158 Benchmark]: Toolchain (without parser) took 22455.09ms. Allocated memory was 98.6MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 75.7MB in the beginning and 367.7MB in the end (delta: -292.0MB). Peak memory consumption was 783.9MB. Max. memory is 16.1GB. [2022-12-13 18:00:03,944 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 67.1MB. Free memory is still 45.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 18:00:03,944 INFO L158 Benchmark]: CACSL2BoogieTranslator took 503.98ms. Allocated memory is still 98.6MB. Free memory was 75.4MB in the beginning and 70.4MB in the end (delta: 5.0MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. [2022-12-13 18:00:03,945 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.00ms. Allocated memory is still 98.6MB. Free memory was 70.4MB in the beginning and 67.6MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 18:00:03,945 INFO L158 Benchmark]: Boogie Preprocessor took 31.09ms. Allocated memory is still 98.6MB. Free memory was 67.6MB in the beginning and 65.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 18:00:03,945 INFO L158 Benchmark]: RCFGBuilder took 578.04ms. Allocated memory is still 98.6MB. Free memory was 65.5MB in the beginning and 47.8MB in the end (delta: 17.7MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. [2022-12-13 18:00:03,946 INFO L158 Benchmark]: TraceAbstraction took 21287.01ms. Allocated memory was 98.6MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 47.1MB in the beginning and 367.7MB in the end (delta: -320.6MB). Peak memory consumption was 752.6MB. Max. memory is 16.1GB. [2022-12-13 18:00:03,946 INFO L158 Benchmark]: Witness Printer took 3.27ms. Allocated memory is still 1.2GB. Free memory is still 367.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 18:00:03,948 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 67.1MB. Free memory is still 45.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 503.98ms. Allocated memory is still 98.6MB. Free memory was 75.4MB in the beginning and 70.4MB in the end (delta: 5.0MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.00ms. Allocated memory is still 98.6MB. Free memory was 70.4MB in the beginning and 67.6MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.09ms. Allocated memory is still 98.6MB. Free memory was 67.6MB in the beginning and 65.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 578.04ms. Allocated memory is still 98.6MB. Free memory was 65.5MB in the beginning and 47.8MB in the end (delta: 17.7MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. * TraceAbstraction took 21287.01ms. Allocated memory was 98.6MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 47.1MB in the beginning and 367.7MB in the end (delta: -320.6MB). Peak memory consumption was 752.6MB. Max. memory is 16.1GB. * Witness Printer took 3.27ms. Allocated memory is still 1.2GB. Free memory is still 367.7MB. 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: 6.9s, 160 PlacesBefore, 54 PlacesAfterwards, 149 TransitionsBefore, 42 TransitionsAfterwards, 3884 CoEnabledTransitionPairs, 7 FixpointIterations, 53 TrivialSequentialCompositions, 78 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 140 TotalNumberOfCompositions, 10868 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4703, independent: 4459, independent conditional: 0, independent unconditional: 4459, dependent: 244, dependent conditional: 0, dependent unconditional: 244, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1992, independent: 1946, independent conditional: 0, independent unconditional: 1946, dependent: 46, dependent conditional: 0, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4703, independent: 2513, independent conditional: 0, independent unconditional: 2513, dependent: 198, dependent conditional: 0, dependent unconditional: 198, unknown: 1992, unknown conditional: 0, unknown unconditional: 1992] , Statistics on independence cache: Total cache size (in pairs): 189, Positive cache size: 168, Positive conditional cache size: 0, Positive unconditional cache size: 168, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p0_EAX = 0; [L714] 0 int __unbuffered_p1_EAX = 0; [L716] 0 int __unbuffered_p3_EAX = 0; [L718] 0 int __unbuffered_p3_EBX = 0; [L720] 0 int a = 0; [L722] 0 int b = 0; [L723] 0 _Bool b$flush_delayed; [L724] 0 int b$mem_tmp; [L725] 0 _Bool b$r_buff0_thd0; [L726] 0 _Bool b$r_buff0_thd1; [L727] 0 _Bool b$r_buff0_thd2; [L728] 0 _Bool b$r_buff0_thd3; [L729] 0 _Bool b$r_buff0_thd4; [L730] 0 _Bool b$r_buff1_thd0; [L731] 0 _Bool b$r_buff1_thd1; [L732] 0 _Bool b$r_buff1_thd2; [L733] 0 _Bool b$r_buff1_thd3; [L734] 0 _Bool b$r_buff1_thd4; [L735] 0 _Bool b$read_delayed; [L736] 0 int *b$read_delayed_var; [L737] 0 int b$w_buff0; [L738] 0 _Bool b$w_buff0_used; [L739] 0 int b$w_buff1; [L740] 0 _Bool b$w_buff1_used; [L741] 0 _Bool main$tmp_guard0; [L742] 0 _Bool main$tmp_guard1; [L744] 0 int x = 0; [L746] 0 int y = 0; [L748] 0 int z = 0; [L749] 0 _Bool weak$$choice0; [L750] 0 _Bool weak$$choice2; [L871] 0 pthread_t t1129; [L872] FCALL, FORK 0 pthread_create(&t1129, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, b$flush_delayed=0, b$mem_tmp=0, b$r_buff0_thd0=0, b$r_buff0_thd1=0, b$r_buff0_thd2=0, b$r_buff0_thd3=0, b$r_buff0_thd4=0, b$r_buff1_thd0=0, b$r_buff1_thd1=0, b$r_buff1_thd2=0, b$r_buff1_thd3=0, b$r_buff1_thd4=0, b$read_delayed=0, b$read_delayed_var={0:0}, b$w_buff0=0, b$w_buff0_used=0, b$w_buff1=0, b$w_buff1_used=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1129, ((void *)0), P0, ((void *)0))=-1, t1129={11:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L754] 1 b$w_buff1 = b$w_buff0 [L755] 1 b$w_buff0 = 1 [L756] 1 b$w_buff1_used = b$w_buff0_used [L757] 1 b$w_buff0_used = (_Bool)1 [L758] CALL 1 __VERIFIER_assert(!(b$w_buff1_used && b$w_buff0_used)) [L18] COND FALSE 1 !(!expression) [L758] RET 1 __VERIFIER_assert(!(b$w_buff1_used && b$w_buff0_used)) [L759] 1 b$r_buff1_thd0 = b$r_buff0_thd0 [L760] 1 b$r_buff1_thd1 = b$r_buff0_thd1 [L761] 1 b$r_buff1_thd2 = b$r_buff0_thd2 [L762] 1 b$r_buff1_thd3 = b$r_buff0_thd3 [L763] 1 b$r_buff1_thd4 = b$r_buff0_thd4 [L764] 1 b$r_buff0_thd1 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, b=0, b$flush_delayed=0, b$mem_tmp=0, b$r_buff0_thd0=0, b$r_buff0_thd1=1, b$r_buff0_thd2=0, b$r_buff0_thd3=0, b$r_buff0_thd4=0, b$r_buff1_thd0=0, b$r_buff1_thd1=0, b$r_buff1_thd2=0, b$r_buff1_thd3=0, b$r_buff1_thd4=0, b$read_delayed=0, b$read_delayed_var={0:0}, b$w_buff0=1, b$w_buff0_used=1, b$w_buff1=0, b$w_buff1_used=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L873] 0 pthread_t t1130; [L874] FCALL, FORK 0 pthread_create(&t1130, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, b=0, b$flush_delayed=0, b$mem_tmp=0, b$r_buff0_thd0=0, b$r_buff0_thd1=1, b$r_buff0_thd2=0, b$r_buff0_thd3=0, b$r_buff0_thd4=0, b$r_buff1_thd0=0, b$r_buff1_thd1=0, b$r_buff1_thd2=0, b$r_buff1_thd3=0, b$r_buff1_thd4=0, b$read_delayed=0, b$read_delayed_var={0:0}, b$w_buff0=1, b$w_buff0_used=1, b$w_buff1=0, b$w_buff1_used=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1130, ((void *)0), P1, ((void *)0))=0, t1129={11:0}, t1130={15:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L767] 1 __unbuffered_p0_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, b=0, b$flush_delayed=0, b$mem_tmp=0, b$r_buff0_thd0=0, b$r_buff0_thd1=1, b$r_buff0_thd2=0, b$r_buff0_thd3=0, b$r_buff0_thd4=0, b$r_buff1_thd0=0, b$r_buff1_thd1=0, b$r_buff1_thd2=0, b$r_buff1_thd3=0, b$r_buff1_thd4=0, b$read_delayed=0, b$read_delayed_var={0:0}, b$w_buff0=1, b$w_buff0_used=1, b$w_buff1=0, b$w_buff1_used=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L784] 2 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, b=0, b$flush_delayed=0, b$mem_tmp=0, b$r_buff0_thd0=0, b$r_buff0_thd1=1, b$r_buff0_thd2=0, b$r_buff0_thd3=0, b$r_buff0_thd4=0, b$r_buff1_thd0=0, b$r_buff1_thd1=0, b$r_buff1_thd2=0, b$r_buff1_thd3=0, b$r_buff1_thd4=0, b$read_delayed=0, b$read_delayed_var={0:0}, b$w_buff0=1, b$w_buff0_used=1, b$w_buff1=0, b$w_buff1_used=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0] [L787] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, b=0, b$flush_delayed=0, b$mem_tmp=0, b$r_buff0_thd0=0, b$r_buff0_thd1=1, b$r_buff0_thd2=0, b$r_buff0_thd3=0, b$r_buff0_thd4=0, b$r_buff1_thd0=0, b$r_buff1_thd1=0, b$r_buff1_thd2=0, b$r_buff1_thd3=0, b$r_buff1_thd4=0, b$read_delayed=0, b$read_delayed_var={0:0}, b$w_buff0=1, b$w_buff0_used=1, b$w_buff1=0, b$w_buff1_used=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0] [L875] 0 pthread_t t1131; [L876] FCALL, FORK 0 pthread_create(&t1131, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, b=0, b$flush_delayed=0, b$mem_tmp=0, b$r_buff0_thd0=0, b$r_buff0_thd1=1, b$r_buff0_thd2=0, b$r_buff0_thd3=0, b$r_buff0_thd4=0, b$r_buff1_thd0=0, b$r_buff1_thd1=0, b$r_buff1_thd2=0, b$r_buff1_thd3=0, b$r_buff1_thd4=0, b$read_delayed=0, b$read_delayed_var={0:0}, b$w_buff0=1, b$w_buff0_used=1, b$w_buff1=0, b$w_buff1_used=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1131, ((void *)0), P2, ((void *)0))=1, t1129={11:0}, t1130={15:0}, t1131={7:0}, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0] [L804] 3 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, b$flush_delayed=0, b$mem_tmp=0, b$r_buff0_thd0=0, b$r_buff0_thd1=1, b$r_buff0_thd2=0, b$r_buff0_thd3=0, b$r_buff0_thd4=0, b$r_buff1_thd0=0, b$r_buff1_thd1=0, b$r_buff1_thd2=0, b$r_buff1_thd3=0, b$r_buff1_thd4=0, b$read_delayed=0, b$read_delayed_var={0:0}, b$w_buff0=1, b$w_buff0_used=1, b$w_buff1=0, b$w_buff1_used=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=0] [L807] 3 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, b$flush_delayed=0, b$mem_tmp=0, b$r_buff0_thd0=0, b$r_buff0_thd1=1, b$r_buff0_thd2=0, b$r_buff0_thd3=0, b$r_buff0_thd4=0, b$r_buff1_thd0=0, b$r_buff1_thd1=0, b$r_buff1_thd2=0, b$r_buff1_thd3=0, b$r_buff1_thd4=0, b$read_delayed=0, b$read_delayed_var={0:0}, b$w_buff0=1, b$w_buff0_used=1, b$w_buff1=0, b$w_buff1_used=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=1] [L810] 3 b = b$w_buff0_used && b$r_buff0_thd3 ? b$w_buff0 : (b$w_buff1_used && b$r_buff1_thd3 ? b$w_buff1 : b) [L811] 3 b$w_buff0_used = b$w_buff0_used && b$r_buff0_thd3 ? (_Bool)0 : b$w_buff0_used [L812] 3 b$w_buff1_used = b$w_buff0_used && b$r_buff0_thd3 || b$w_buff1_used && b$r_buff1_thd3 ? (_Bool)0 : b$w_buff1_used [L813] 3 b$r_buff0_thd3 = b$w_buff0_used && b$r_buff0_thd3 ? (_Bool)0 : b$r_buff0_thd3 [L814] 3 b$r_buff1_thd3 = b$w_buff0_used && b$r_buff0_thd3 || b$w_buff1_used && b$r_buff1_thd3 ? (_Bool)0 : b$r_buff1_thd3 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, b$flush_delayed=0, b$mem_tmp=0, b$r_buff0_thd0=0, b$r_buff0_thd1=1, b$r_buff0_thd2=0, b$r_buff0_thd3=0, b$r_buff0_thd4=0, b$r_buff1_thd0=0, b$r_buff1_thd1=0, b$r_buff1_thd2=0, b$r_buff1_thd3=0, b$r_buff1_thd4=0, b$read_delayed=0, b$read_delayed_var={0:0}, b$w_buff0=1, b$w_buff0_used=1, b$w_buff1=0, b$w_buff1_used=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=1] [L790] 2 b = b$w_buff0_used && b$r_buff0_thd2 ? b$w_buff0 : (b$w_buff1_used && b$r_buff1_thd2 ? b$w_buff1 : b) [L791] 2 b$w_buff0_used = b$w_buff0_used && b$r_buff0_thd2 ? (_Bool)0 : b$w_buff0_used [L792] 2 b$w_buff1_used = b$w_buff0_used && b$r_buff0_thd2 || b$w_buff1_used && b$r_buff1_thd2 ? (_Bool)0 : b$w_buff1_used [L793] 2 b$r_buff0_thd2 = b$w_buff0_used && b$r_buff0_thd2 ? (_Bool)0 : b$r_buff0_thd2 [L794] 2 b$r_buff1_thd2 = b$w_buff0_used && b$r_buff0_thd2 || b$w_buff1_used && b$r_buff1_thd2 ? (_Bool)0 : b$r_buff1_thd2 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, b$flush_delayed=0, b$mem_tmp=0, b$r_buff0_thd0=0, b$r_buff0_thd1=1, b$r_buff0_thd2=0, b$r_buff0_thd3=0, b$r_buff0_thd4=0, b$r_buff1_thd0=0, b$r_buff1_thd1=0, b$r_buff1_thd2=0, b$r_buff1_thd3=0, b$r_buff1_thd4=0, b$read_delayed=0, b$read_delayed_var={0:0}, b$w_buff0=1, b$w_buff0_used=1, b$w_buff1=0, b$w_buff1_used=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=1] [L797] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L799] 2 return 0; [L817] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L819] 3 return 0; [L877] 0 pthread_t t1132; [L878] FCALL, FORK 0 pthread_create(&t1132, ((void *)0), P3, ((void *)0)) VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, b$flush_delayed=0, b$mem_tmp=0, b$r_buff0_thd0=0, b$r_buff0_thd1=1, b$r_buff0_thd2=0, b$r_buff0_thd3=0, b$r_buff0_thd4=0, b$r_buff1_thd0=0, b$r_buff1_thd1=0, b$r_buff1_thd2=0, b$r_buff1_thd3=0, b$r_buff1_thd4=0, b$read_delayed=0, b$read_delayed_var={0:0}, b$w_buff0=1, b$w_buff0_used=1, b$w_buff1=0, b$w_buff1_used=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1132, ((void *)0), P3, ((void *)0))=2, t1129={11:0}, t1130={15:0}, t1131={7:0}, t1132={-2147483637:0}, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=1] [L824] 4 z = 2 [L827] 4 a = 1 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, b$flush_delayed=0, b$mem_tmp=0, b$r_buff0_thd0=0, b$r_buff0_thd1=1, b$r_buff0_thd2=0, b$r_buff0_thd3=0, b$r_buff0_thd4=0, b$r_buff1_thd0=0, b$r_buff1_thd1=0, b$r_buff1_thd2=0, b$r_buff1_thd3=0, b$r_buff1_thd4=0, b$read_delayed=0, b$read_delayed_var={0:0}, b$w_buff0=1, b$w_buff0_used=1, b$w_buff1=0, b$w_buff1_used=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=2] [L830] 4 __unbuffered_p3_EAX = a VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, b$flush_delayed=0, b$mem_tmp=0, b$r_buff0_thd0=0, b$r_buff0_thd1=1, b$r_buff0_thd2=0, b$r_buff0_thd3=0, b$r_buff0_thd4=0, b$r_buff1_thd0=0, b$r_buff1_thd1=0, b$r_buff1_thd2=0, b$r_buff1_thd3=0, b$r_buff1_thd4=0, b$read_delayed=0, b$read_delayed_var={0:0}, b$w_buff0=1, b$w_buff0_used=1, b$w_buff1=0, b$w_buff1_used=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=2] [L833] 4 weak$$choice0 = __VERIFIER_nondet_bool() [L834] 4 weak$$choice2 = __VERIFIER_nondet_bool() [L835] 4 b$flush_delayed = weak$$choice2 [L836] 4 b$mem_tmp = b [L837] 4 b = !b$w_buff0_used || !b$r_buff0_thd4 && !b$w_buff1_used || !b$r_buff0_thd4 && !b$r_buff1_thd4 ? b : (b$w_buff0_used && b$r_buff0_thd4 ? b$w_buff0 : b$w_buff1) [L838] 4 b$w_buff0 = weak$$choice2 ? b$w_buff0 : (!b$w_buff0_used || !b$r_buff0_thd4 && !b$w_buff1_used || !b$r_buff0_thd4 && !b$r_buff1_thd4 ? b$w_buff0 : (b$w_buff0_used && b$r_buff0_thd4 ? b$w_buff0 : b$w_buff0)) [L839] 4 b$w_buff1 = weak$$choice2 ? b$w_buff1 : (!b$w_buff0_used || !b$r_buff0_thd4 && !b$w_buff1_used || !b$r_buff0_thd4 && !b$r_buff1_thd4 ? b$w_buff1 : (b$w_buff0_used && b$r_buff0_thd4 ? b$w_buff1 : b$w_buff1)) [L840] 4 b$w_buff0_used = weak$$choice2 ? b$w_buff0_used : (!b$w_buff0_used || !b$r_buff0_thd4 && !b$w_buff1_used || !b$r_buff0_thd4 && !b$r_buff1_thd4 ? b$w_buff0_used : (b$w_buff0_used && b$r_buff0_thd4 ? (_Bool)0 : b$w_buff0_used)) [L841] 4 b$w_buff1_used = weak$$choice2 ? b$w_buff1_used : (!b$w_buff0_used || !b$r_buff0_thd4 && !b$w_buff1_used || !b$r_buff0_thd4 && !b$r_buff1_thd4 ? b$w_buff1_used : (b$w_buff0_used && b$r_buff0_thd4 ? (_Bool)0 : (_Bool)0)) [L842] 4 b$r_buff0_thd4 = weak$$choice2 ? b$r_buff0_thd4 : (!b$w_buff0_used || !b$r_buff0_thd4 && !b$w_buff1_used || !b$r_buff0_thd4 && !b$r_buff1_thd4 ? b$r_buff0_thd4 : (b$w_buff0_used && b$r_buff0_thd4 ? (_Bool)0 : b$r_buff0_thd4)) [L843] 4 b$r_buff1_thd4 = weak$$choice2 ? b$r_buff1_thd4 : (!b$w_buff0_used || !b$r_buff0_thd4 && !b$w_buff1_used || !b$r_buff0_thd4 && !b$r_buff1_thd4 ? b$r_buff1_thd4 : (b$w_buff0_used && b$r_buff0_thd4 ? (_Bool)0 : (_Bool)0)) [L844] 4 __unbuffered_p3_EBX = b [L845] 4 b = b$flush_delayed ? b$mem_tmp : b [L846] 4 b$flush_delayed = (_Bool)0 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, b$flush_delayed=0, b$mem_tmp=0, b$r_buff0_thd0=0, b$r_buff0_thd1=1, b$r_buff0_thd2=0, b$r_buff0_thd3=0, b$r_buff0_thd4=0, b$r_buff1_thd0=0, b$r_buff1_thd1=0, b$r_buff1_thd2=0, b$r_buff1_thd3=0, b$r_buff1_thd4=0, b$read_delayed=0, b$read_delayed_var={0:0}, b$w_buff0=1, b$w_buff0_used=1, b$w_buff1=0, b$w_buff1_used=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=1, y=1, z=2] [L770] 1 b = b$w_buff0_used && b$r_buff0_thd1 ? b$w_buff0 : (b$w_buff1_used && b$r_buff1_thd1 ? b$w_buff1 : b) [L771] 1 b$w_buff0_used = b$w_buff0_used && b$r_buff0_thd1 ? (_Bool)0 : b$w_buff0_used [L772] 1 b$w_buff1_used = b$w_buff0_used && b$r_buff0_thd1 || b$w_buff1_used && b$r_buff1_thd1 ? (_Bool)0 : b$w_buff1_used [L773] 1 b$r_buff0_thd1 = b$w_buff0_used && b$r_buff0_thd1 ? (_Bool)0 : b$r_buff0_thd1 [L774] 1 b$r_buff1_thd1 = b$w_buff0_used && b$r_buff0_thd1 || b$w_buff1_used && b$r_buff1_thd1 ? (_Bool)0 : b$r_buff1_thd1 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, b$flush_delayed=0, b$mem_tmp=0, b$r_buff0_thd0=0, b$r_buff0_thd1=1, b$r_buff0_thd2=0, b$r_buff0_thd3=0, b$r_buff0_thd4=0, b$r_buff1_thd0=0, b$r_buff1_thd1=0, b$r_buff1_thd2=0, b$r_buff1_thd3=0, b$r_buff1_thd4=0, b$read_delayed=0, b$read_delayed_var={0:0}, b$w_buff0=1, b$w_buff0_used=0, b$w_buff1=0, b$w_buff1_used=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=1, y=1, z=2] [L849] 4 b = b$w_buff0_used && b$r_buff0_thd4 ? b$w_buff0 : (b$w_buff1_used && b$r_buff1_thd4 ? b$w_buff1 : b) [L850] 4 b$w_buff0_used = b$w_buff0_used && b$r_buff0_thd4 ? (_Bool)0 : b$w_buff0_used [L851] 4 b$w_buff1_used = b$w_buff0_used && b$r_buff0_thd4 || b$w_buff1_used && b$r_buff1_thd4 ? (_Bool)0 : b$w_buff1_used [L852] 4 b$r_buff0_thd4 = b$w_buff0_used && b$r_buff0_thd4 ? (_Bool)0 : b$r_buff0_thd4 [L853] 4 b$r_buff1_thd4 = b$w_buff0_used && b$r_buff0_thd4 || b$w_buff1_used && b$r_buff1_thd4 ? (_Bool)0 : b$r_buff1_thd4 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, b$flush_delayed=0, b$mem_tmp=0, b$r_buff0_thd0=0, b$r_buff0_thd1=1, b$r_buff0_thd2=0, b$r_buff0_thd3=0, b$r_buff0_thd4=0, b$r_buff1_thd0=0, b$r_buff1_thd1=0, b$r_buff1_thd2=0, b$r_buff1_thd3=0, b$r_buff1_thd4=0, b$read_delayed=0, b$read_delayed_var={0:0}, b$w_buff0=1, b$w_buff0_used=0, b$w_buff1=0, b$w_buff1_used=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=1, y=1, z=2] [L777] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L779] 1 return 0; [L856] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L858] 4 return 0; [L880] 0 main$tmp_guard0 = __unbuffered_cnt == 4 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, b$flush_delayed=0, b$mem_tmp=0, b$r_buff0_thd0=0, b$r_buff0_thd1=1, b$r_buff0_thd2=0, b$r_buff0_thd3=0, b$r_buff0_thd4=0, b$r_buff1_thd0=0, b$r_buff1_thd1=0, b$r_buff1_thd2=0, b$r_buff1_thd3=0, b$r_buff1_thd4=0, b$read_delayed=0, b$read_delayed_var={0:0}, b$w_buff0=1, b$w_buff0_used=0, b$w_buff1=0, b$w_buff1_used=0, main$tmp_guard0=1, main$tmp_guard1=0, t1129={11:0}, t1130={15:0}, t1131={7:0}, t1132={-2147483637:0}, weak$$choice0=2, weak$$choice2=0, x=1, y=1, z=2] [L882] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L882] RET 0 assume_abort_if_not(main$tmp_guard0) [L884] 0 b = b$w_buff0_used && b$r_buff0_thd0 ? b$w_buff0 : (b$w_buff1_used && b$r_buff1_thd0 ? b$w_buff1 : b) [L885] 0 b$w_buff0_used = b$w_buff0_used && b$r_buff0_thd0 ? (_Bool)0 : b$w_buff0_used [L886] 0 b$w_buff1_used = b$w_buff0_used && b$r_buff0_thd0 || b$w_buff1_used && b$r_buff1_thd0 ? (_Bool)0 : b$w_buff1_used [L887] 0 b$r_buff0_thd0 = b$w_buff0_used && b$r_buff0_thd0 ? (_Bool)0 : b$r_buff0_thd0 [L888] 0 b$r_buff1_thd0 = b$w_buff0_used && b$r_buff0_thd0 || b$w_buff1_used && b$r_buff1_thd0 ? (_Bool)0 : b$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, b$flush_delayed=0, b$mem_tmp=0, b$r_buff0_thd0=0, b$r_buff0_thd1=1, b$r_buff0_thd2=0, b$r_buff0_thd3=0, b$r_buff0_thd4=0, b$r_buff1_thd0=0, b$r_buff1_thd1=0, b$r_buff1_thd2=0, b$r_buff1_thd3=0, b$r_buff1_thd4=0, b$read_delayed=0, b$read_delayed_var={0:0}, b$w_buff0=1, b$w_buff0_used=0, b$w_buff1=0, b$w_buff1_used=0, main$tmp_guard0=1, main$tmp_guard1=0, t1129={11:0}, t1130={15:0}, t1131={7:0}, t1132={-2147483637:0}, weak$$choice0=2, weak$$choice2=0, x=1, y=1, z=2] [L891] 0 main$tmp_guard1 = !(z == 2 && __unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 0 && __unbuffered_p3_EAX == 1 && __unbuffered_p3_EBX == 0) [L893] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\old(expression)=0, \old(expression)=1, \result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, b$flush_delayed=0, b$mem_tmp=0, b$r_buff0_thd0=0, b$r_buff0_thd1=1, b$r_buff0_thd2=0, b$r_buff0_thd3=0, b$r_buff0_thd4=0, b$r_buff1_thd0=0, b$r_buff1_thd1=0, b$r_buff1_thd2=0, b$r_buff1_thd3=0, b$r_buff1_thd4=0, b$read_delayed=0, b$read_delayed_var={0:0}, b$w_buff0=1, b$w_buff0_used=0, b$w_buff1=0, b$w_buff1_used=0, expression=0, expression=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=1, y=1, z=2] - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 869]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 876]: 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: 874]: 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: 878]: 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: 872]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 191 locations, 16 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 21.1s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 8.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 744 SdHoareTripleChecker+Valid, 2.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 659 mSDsluCounter, 185 SdHoareTripleChecker+Invalid, 2.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 176 mSDsCounter, 90 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2223 IncrementalHoareTripleChecker+Invalid, 2313 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 90 mSolverCounterUnsat, 9 mSDtfsCounter, 2223 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 230 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=400occurred in iteration=10, InterpolantAutomatonStates: 55, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 250 NumberOfCodeBlocks, 250 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 210 ConstructedInterpolants, 17 QuantifiedInterpolants, 2017 SizeOfPredicates, 22 NumberOfNonLiveVariables, 1734 ConjunctsInSsa, 84 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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 18:00:03,963 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b8d579-5be7-4120-936f-1b43e6180a14/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