./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/safe037.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_f38b8275-044c-45b1-96f9-a73c8427d244/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b8275-044c-45b1-96f9-a73c8427d244/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_f38b8275-044c-45b1-96f9-a73c8427d244/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b8275-044c-45b1-96f9-a73c8427d244/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/safe037.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b8275-044c-45b1-96f9-a73c8427d244/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_f38b8275-044c-45b1-96f9-a73c8427d244/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 8e4a27807726d35f891e97d8bb2a7e6664171035f3f5de29d992fc7dfa583447 --- 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 14:55:59,879 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 14:55:59,881 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 14:55:59,900 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 14:55:59,900 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 14:55:59,901 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 14:55:59,902 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 14:55:59,904 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 14:55:59,905 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 14:55:59,906 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 14:55:59,907 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 14:55:59,908 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 14:55:59,909 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 14:55:59,910 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 14:55:59,911 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 14:55:59,912 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 14:55:59,913 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 14:55:59,914 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 14:55:59,915 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 14:55:59,917 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 14:55:59,919 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 14:55:59,920 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 14:55:59,921 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 14:55:59,922 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 14:55:59,925 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 14:55:59,925 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 14:55:59,926 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 14:55:59,927 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 14:55:59,927 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 14:55:59,928 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 14:55:59,928 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 14:55:59,929 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 14:55:59,930 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 14:55:59,931 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 14:55:59,932 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 14:55:59,932 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 14:55:59,932 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 14:55:59,933 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 14:55:59,933 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 14:55:59,934 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 14:55:59,934 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 14:55:59,935 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b8275-044c-45b1-96f9-a73c8427d244/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-12-13 14:55:59,956 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 14:55:59,956 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 14:55:59,956 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 14:55:59,957 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 14:55:59,957 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 14:55:59,957 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 14:55:59,958 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 14:55:59,958 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 14:55:59,958 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 14:55:59,958 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 14:55:59,958 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 14:55:59,959 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 14:55:59,959 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 14:55:59,959 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 14:55:59,959 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 14:55:59,959 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 14:55:59,960 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 14:55:59,960 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 14:55:59,960 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 14:55:59,960 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 14:55:59,960 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 14:55:59,960 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 14:55:59,961 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 14:55:59,961 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 14:55:59,961 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 14:55:59,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:55:59,961 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 14:55:59,961 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 14:55:59,962 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 14:55:59,962 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 14:55:59,962 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 14:55:59,962 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 14:55:59,962 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 14:55:59,962 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 14:55:59,963 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_f38b8275-044c-45b1-96f9-a73c8427d244/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b8275-044c-45b1-96f9-a73c8427d244/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e4a27807726d35f891e97d8bb2a7e6664171035f3f5de29d992fc7dfa583447 [2022-12-13 14:56:00,125 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 14:56:00,142 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 14:56:00,144 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 14:56:00,145 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 14:56:00,146 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 14:56:00,147 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b8275-044c-45b1-96f9-a73c8427d244/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-wmm/safe037.i [2022-12-13 14:56:02,814 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 14:56:03,000 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 14:56:03,000 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b8275-044c-45b1-96f9-a73c8427d244/sv-benchmarks/c/pthread-wmm/safe037.i [2022-12-13 14:56:03,012 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b8275-044c-45b1-96f9-a73c8427d244/bin/uautomizer-uyxdKDjOR8/data/ffb98630b/89a1d8cd397d4acd9fecda24cc3bfe2e/FLAGb6f706bd2 [2022-12-13 14:56:03,024 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b8275-044c-45b1-96f9-a73c8427d244/bin/uautomizer-uyxdKDjOR8/data/ffb98630b/89a1d8cd397d4acd9fecda24cc3bfe2e [2022-12-13 14:56:03,026 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 14:56:03,027 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 14:56:03,027 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 14:56:03,028 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 14:56:03,030 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 14:56:03,031 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:56:03" (1/1) ... [2022-12-13 14:56:03,031 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@798ea40c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:56:03, skipping insertion in model container [2022-12-13 14:56:03,032 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:56:03" (1/1) ... [2022-12-13 14:56:03,037 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 14:56:03,063 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 14:56:03,175 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_f38b8275-044c-45b1-96f9-a73c8427d244/sv-benchmarks/c/pthread-wmm/safe037.i[941,954] [2022-12-13 14:56:03,275 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:56:03,275 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:56:03,276 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:56:03,276 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:56:03,276 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:56:03,276 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:56:03,276 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:56:03,277 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:56:03,277 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:56:03,277 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:56:03,278 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:56:03,278 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:56:03,278 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:56:03,278 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:56:03,278 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:56:03,279 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:56:03,279 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:56:03,279 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:56:03,279 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:56:03,279 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:56:03,280 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:56:03,280 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:56:03,280 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:56:03,280 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:56:03,281 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:56:03,281 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:56:03,281 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:56:03,281 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:56:03,281 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:56:03,282 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:56:03,286 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:56:03,286 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:56:03,287 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:56:03,287 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:56:03,287 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:56:03,288 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:56:03,288 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:56:03,296 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 14:56:03,305 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_f38b8275-044c-45b1-96f9-a73c8427d244/sv-benchmarks/c/pthread-wmm/safe037.i[941,954] [2022-12-13 14:56:03,319 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:56:03,320 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:56:03,320 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:56:03,320 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:56:03,320 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:56:03,321 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:56:03,321 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:56:03,321 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:56:03,321 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:56:03,321 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:56:03,322 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:56:03,322 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:56:03,322 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:56:03,322 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:56:03,322 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:56:03,323 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:56:03,323 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:56:03,323 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:56:03,323 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:56:03,323 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:56:03,324 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:56:03,324 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:56:03,324 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:56:03,324 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:56:03,324 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:56:03,325 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:56:03,325 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:56:03,325 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:56:03,325 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:56:03,325 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:56:03,328 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:56:03,328 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:56:03,329 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:56:03,329 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:56:03,329 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:56:03,329 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:56:03,330 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:56:03,352 INFO L208 MainTranslator]: Completed translation [2022-12-13 14:56:03,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:56:03 WrapperNode [2022-12-13 14:56:03,352 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 14:56:03,353 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 14:56:03,353 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 14:56:03,353 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 14:56:03,359 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:56:03" (1/1) ... [2022-12-13 14:56:03,368 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:56:03" (1/1) ... [2022-12-13 14:56:03,382 INFO L138 Inliner]: procedures = 176, calls = 59, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 72 [2022-12-13 14:56:03,383 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 14:56:03,383 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 14:56:03,383 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 14:56:03,383 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 14:56:03,390 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:56:03" (1/1) ... [2022-12-13 14:56:03,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:56:03" (1/1) ... [2022-12-13 14:56:03,392 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:56:03" (1/1) ... [2022-12-13 14:56:03,392 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:56:03" (1/1) ... [2022-12-13 14:56:03,395 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:56:03" (1/1) ... [2022-12-13 14:56:03,397 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:56:03" (1/1) ... [2022-12-13 14:56:03,398 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:56:03" (1/1) ... [2022-12-13 14:56:03,398 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:56:03" (1/1) ... [2022-12-13 14:56:03,400 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 14:56:03,401 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 14:56:03,401 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 14:56:03,401 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 14:56:03,401 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:56:03" (1/1) ... [2022-12-13 14:56:03,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:56:03,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b8275-044c-45b1-96f9-a73c8427d244/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:56:03,425 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b8275-044c-45b1-96f9-a73c8427d244/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 14:56:03,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b8275-044c-45b1-96f9-a73c8427d244/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 14:56:03,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 14:56:03,455 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 14:56:03,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 14:56:03,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 14:56:03,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 14:56:03,456 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 14:56:03,456 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 14:56:03,456 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 14:56:03,456 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 14:56:03,456 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-13 14:56:03,457 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-13 14:56:03,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 14:56:03,457 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 14:56:03,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 14:56:03,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 14:56:03,459 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 14:56:03,562 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 14:56:03,564 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 14:56:03,720 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 14:56:03,726 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 14:56:03,726 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 14:56:03,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:56:03 BoogieIcfgContainer [2022-12-13 14:56:03,728 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 14:56:03,730 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 14:56:03,730 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 14:56:03,733 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 14:56:03,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 02:56:03" (1/3) ... [2022-12-13 14:56:03,733 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73ebcbe1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:56:03, skipping insertion in model container [2022-12-13 14:56:03,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:56:03" (2/3) ... [2022-12-13 14:56:03,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73ebcbe1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:56:03, skipping insertion in model container [2022-12-13 14:56:03,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:56:03" (3/3) ... [2022-12-13 14:56:03,735 INFO L112 eAbstractionObserver]: Analyzing ICFG safe037.i [2022-12-13 14:56:03,750 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 14:56:03,750 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-12-13 14:56:03,750 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 14:56:03,816 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 14:56:03,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 111 places, 103 transitions, 221 flow [2022-12-13 14:56:03,881 INFO L130 PetriNetUnfolder]: 2/100 cut-off events. [2022-12-13 14:56:03,882 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 14:56:03,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 100 events. 2/100 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 62 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 75. Up to 2 conditions per place. [2022-12-13 14:56:03,887 INFO L82 GeneralOperation]: Start removeDead. Operand has 111 places, 103 transitions, 221 flow [2022-12-13 14:56:03,892 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 103 places, 95 transitions, 199 flow [2022-12-13 14:56:03,896 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 14:56:03,906 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 103 places, 95 transitions, 199 flow [2022-12-13 14:56:03,909 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 103 places, 95 transitions, 199 flow [2022-12-13 14:56:03,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 95 transitions, 199 flow [2022-12-13 14:56:03,937 INFO L130 PetriNetUnfolder]: 2/95 cut-off events. [2022-12-13 14:56:03,937 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 14:56:03,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 95 events. 2/95 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 61 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 70. Up to 2 conditions per place. [2022-12-13 14:56:03,940 INFO L119 LiptonReduction]: Number of co-enabled transitions 1620 [2022-12-13 14:56:06,015 INFO L134 LiptonReduction]: Checked pairs total: 3078 [2022-12-13 14:56:06,015 INFO L136 LiptonReduction]: Total number of compositions: 98 [2022-12-13 14:56:06,028 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 14:56:06,033 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;@304b36db, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 14:56:06,033 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-12-13 14:56:06,035 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 14:56:06,035 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 14:56:06,035 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:56:06,035 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 14:56:06,036 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-12-13 14:56:06,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:56:06,039 INFO L85 PathProgramCache]: Analyzing trace with hash 364, now seen corresponding path program 1 times [2022-12-13 14:56:06,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:56:06,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537564177] [2022-12-13 14:56:06,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:56:06,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:56:06,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:06,122 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 14:56:06,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:56:06,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537564177] [2022-12-13 14:56:06,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537564177] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:56:06,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:56:06,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 14:56:06,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193802696] [2022-12-13 14:56:06,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:56:06,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 14:56:06,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:56:06,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 14:56:06,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 14:56:06,148 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 201 [2022-12-13 14:56:06,150 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 26 transitions, 61 flow. Second operand has 2 states, 2 states have (on average 97.5) internal successors, (195), 2 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:56:06,150 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:56:06,150 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 201 [2022-12-13 14:56:06,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:56:06,226 INFO L130 PetriNetUnfolder]: 272/446 cut-off events. [2022-12-13 14:56:06,226 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 14:56:06,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 909 conditions, 446 events. 272/446 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 1899 event pairs, 272 based on Foata normal form. 0/406 useless extension candidates. Maximal degree in co-relation 898. Up to 433 conditions per place. [2022-12-13 14:56:06,230 INFO L137 encePairwiseOnDemand]: 194/201 looper letters, 16 selfloop transitions, 0 changer transitions 0/19 dead transitions. [2022-12-13 14:56:06,230 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 19 transitions, 79 flow [2022-12-13 14:56:06,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 14:56:06,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 14:56:06,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 217 transitions. [2022-12-13 14:56:06,240 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5398009950248757 [2022-12-13 14:56:06,240 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 217 transitions. [2022-12-13 14:56:06,240 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 217 transitions. [2022-12-13 14:56:06,241 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:56:06,243 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 217 transitions. [2022-12-13 14:56:06,245 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 108.5) internal successors, (217), 2 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:56:06,248 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 201.0) internal successors, (603), 3 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:56:06,248 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 201.0) internal successors, (603), 3 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:56:06,250 INFO L175 Difference]: Start difference. First operand has 35 places, 26 transitions, 61 flow. Second operand 2 states and 217 transitions. [2022-12-13 14:56:06,250 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 19 transitions, 79 flow [2022-12-13 14:56:06,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 19 transitions, 76 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 14:56:06,253 INFO L231 Difference]: Finished difference. Result has 27 places, 19 transitions, 44 flow [2022-12-13 14:56:06,254 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=201, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=44, PETRI_PLACES=27, PETRI_TRANSITIONS=19} [2022-12-13 14:56:06,257 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, -8 predicate places. [2022-12-13 14:56:06,257 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 19 transitions, 44 flow [2022-12-13 14:56:06,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 97.5) internal successors, (195), 2 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:56:06,257 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:56:06,258 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:56:06,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 14:56:06,258 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-12-13 14:56:06,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:56:06,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1322878767, now seen corresponding path program 1 times [2022-12-13 14:56:06,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:56:06,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926523509] [2022-12-13 14:56:06,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:56:06,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:56:06,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:06,715 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 14:56:06,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:56:06,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926523509] [2022-12-13 14:56:06,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926523509] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:56:06,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:56:06,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:56:06,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525912748] [2022-12-13 14:56:06,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:56:06,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 14:56:06,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:56:06,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 14:56:06,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 14:56:06,811 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 201 [2022-12-13 14:56:06,812 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 19 transitions, 44 flow. Second operand has 5 states, 5 states have (on average 83.8) internal successors, (419), 5 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:56:06,812 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:56:06,812 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 201 [2022-12-13 14:56:06,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:56:06,892 INFO L130 PetriNetUnfolder]: 218/363 cut-off events. [2022-12-13 14:56:06,892 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 14:56:06,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 743 conditions, 363 events. 218/363 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1482 event pairs, 57 based on Foata normal form. 0/354 useless extension candidates. Maximal degree in co-relation 740. Up to 327 conditions per place. [2022-12-13 14:56:06,895 INFO L137 encePairwiseOnDemand]: 197/201 looper letters, 18 selfloop transitions, 3 changer transitions 0/24 dead transitions. [2022-12-13 14:56:06,895 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 24 transitions, 96 flow [2022-12-13 14:56:06,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 14:56:06,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 14:56:06,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 432 transitions. [2022-12-13 14:56:06,899 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4298507462686567 [2022-12-13 14:56:06,899 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 432 transitions. [2022-12-13 14:56:06,899 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 432 transitions. [2022-12-13 14:56:06,900 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:56:06,900 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 432 transitions. [2022-12-13 14:56:06,902 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 86.4) internal successors, (432), 5 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:56:06,906 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 201.0) internal successors, (1206), 6 states have internal predecessors, (1206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:56:06,906 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 201.0) internal successors, (1206), 6 states have internal predecessors, (1206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:56:06,906 INFO L175 Difference]: Start difference. First operand has 27 places, 19 transitions, 44 flow. Second operand 5 states and 432 transitions. [2022-12-13 14:56:06,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 24 transitions, 96 flow [2022-12-13 14:56:06,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 24 transitions, 96 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 14:56:06,907 INFO L231 Difference]: Finished difference. Result has 30 places, 18 transitions, 48 flow [2022-12-13 14:56:06,907 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=201, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=48, PETRI_PLACES=30, PETRI_TRANSITIONS=18} [2022-12-13 14:56:06,908 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, -5 predicate places. [2022-12-13 14:56:06,908 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 18 transitions, 48 flow [2022-12-13 14:56:06,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 83.8) internal successors, (419), 5 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:56:06,908 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:56:06,908 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:56:06,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 14:56:06,909 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-12-13 14:56:06,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:56:06,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1322878738, now seen corresponding path program 1 times [2022-12-13 14:56:06,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:56:06,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790453015] [2022-12-13 14:56:06,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:56:06,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:56:06,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:07,038 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 14:56:07,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:56:07,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790453015] [2022-12-13 14:56:07,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790453015] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:56:07,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:56:07,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 14:56:07,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097837289] [2022-12-13 14:56:07,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:56:07,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:56:07,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:56:07,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:56:07,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:56:07,048 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 201 [2022-12-13 14:56:07,048 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 18 transitions, 48 flow. Second operand has 3 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:56:07,048 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:56:07,048 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 201 [2022-12-13 14:56:07,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:56:07,089 INFO L130 PetriNetUnfolder]: 146/263 cut-off events. [2022-12-13 14:56:07,089 INFO L131 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-12-13 14:56:07,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 561 conditions, 263 events. 146/263 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 911 event pairs, 40 based on Foata normal form. 8/268 useless extension candidates. Maximal degree in co-relation 557. Up to 220 conditions per place. [2022-12-13 14:56:07,091 INFO L137 encePairwiseOnDemand]: 196/201 looper letters, 21 selfloop transitions, 4 changer transitions 0/28 dead transitions. [2022-12-13 14:56:07,091 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 28 transitions, 126 flow [2022-12-13 14:56:07,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:56:07,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 14:56:07,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 305 transitions. [2022-12-13 14:56:07,093 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5058043117744611 [2022-12-13 14:56:07,093 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 305 transitions. [2022-12-13 14:56:07,093 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 305 transitions. [2022-12-13 14:56:07,093 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:56:07,093 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 305 transitions. [2022-12-13 14:56:07,094 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:56:07,096 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 201.0) internal successors, (804), 4 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 14:56:07,097 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 201.0) internal successors, (804), 4 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 14:56:07,097 INFO L175 Difference]: Start difference. First operand has 30 places, 18 transitions, 48 flow. Second operand 3 states and 305 transitions. [2022-12-13 14:56:07,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 28 transitions, 126 flow [2022-12-13 14:56:07,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 28 transitions, 118 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 14:56:07,098 INFO L231 Difference]: Finished difference. Result has 30 places, 21 transitions, 69 flow [2022-12-13 14:56:07,098 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=201, PETRI_DIFFERENCE_MINUEND_FLOW=43, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=69, PETRI_PLACES=30, PETRI_TRANSITIONS=21} [2022-12-13 14:56:07,099 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, -5 predicate places. [2022-12-13 14:56:07,099 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 21 transitions, 69 flow [2022-12-13 14:56:07,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:56:07,099 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:56:07,099 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:56:07,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 14:56:07,100 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-12-13 14:56:07,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:56:07,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1752378958, now seen corresponding path program 1 times [2022-12-13 14:56:07,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:56:07,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206591634] [2022-12-13 14:56:07,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:56:07,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:56:07,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:07,185 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 14:56:07,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:56:07,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206591634] [2022-12-13 14:56:07,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206591634] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:56:07,186 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:56:07,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:56:07,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791720335] [2022-12-13 14:56:07,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:56:07,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 14:56:07,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:56:07,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 14:56:07,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 14:56:07,194 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 201 [2022-12-13 14:56:07,194 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 21 transitions, 69 flow. Second operand has 4 states, 4 states have (on average 95.75) internal successors, (383), 4 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:56:07,194 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:56:07,195 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 201 [2022-12-13 14:56:07,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:56:07,248 INFO L130 PetriNetUnfolder]: 74/155 cut-off events. [2022-12-13 14:56:07,248 INFO L131 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2022-12-13 14:56:07,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 422 conditions, 155 events. 74/155 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 463 event pairs, 18 based on Foata normal form. 12/164 useless extension candidates. Maximal degree in co-relation 417. Up to 64 conditions per place. [2022-12-13 14:56:07,249 INFO L137 encePairwiseOnDemand]: 196/201 looper letters, 26 selfloop transitions, 7 changer transitions 0/36 dead transitions. [2022-12-13 14:56:07,249 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 36 transitions, 179 flow [2022-12-13 14:56:07,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 14:56:07,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 14:56:07,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 406 transitions. [2022-12-13 14:56:07,251 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5049751243781094 [2022-12-13 14:56:07,251 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 406 transitions. [2022-12-13 14:56:07,251 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 406 transitions. [2022-12-13 14:56:07,252 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:56:07,252 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 406 transitions. [2022-12-13 14:56:07,253 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 101.5) internal successors, (406), 4 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:56:07,255 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 201.0) internal successors, (1005), 5 states have internal predecessors, (1005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:56:07,255 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 201.0) internal successors, (1005), 5 states have internal predecessors, (1005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:56:07,255 INFO L175 Difference]: Start difference. First operand has 30 places, 21 transitions, 69 flow. Second operand 4 states and 406 transitions. [2022-12-13 14:56:07,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 36 transitions, 179 flow [2022-12-13 14:56:07,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 36 transitions, 175 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 14:56:07,257 INFO L231 Difference]: Finished difference. Result has 33 places, 24 transitions, 105 flow [2022-12-13 14:56:07,257 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=201, PETRI_DIFFERENCE_MINUEND_FLOW=65, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=105, PETRI_PLACES=33, PETRI_TRANSITIONS=24} [2022-12-13 14:56:07,258 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, -2 predicate places. [2022-12-13 14:56:07,258 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 24 transitions, 105 flow [2022-12-13 14:56:07,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 95.75) internal successors, (383), 4 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:56:07,258 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:56:07,258 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:56:07,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 14:56:07,259 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-12-13 14:56:07,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:56:07,259 INFO L85 PathProgramCache]: Analyzing trace with hash -135430997, now seen corresponding path program 1 times [2022-12-13 14:56:07,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:56:07,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752922923] [2022-12-13 14:56:07,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:56:07,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:56:07,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:07,364 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 14:56:07,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:56:07,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752922923] [2022-12-13 14:56:07,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752922923] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:56:07,364 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:56:07,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 14:56:07,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840937524] [2022-12-13 14:56:07,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:56:07,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 14:56:07,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:56:07,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 14:56:07,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:56:07,388 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 201 [2022-12-13 14:56:07,389 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 24 transitions, 105 flow. Second operand has 6 states, 6 states have (on average 90.5) internal successors, (543), 6 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:56:07,389 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:56:07,389 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 201 [2022-12-13 14:56:07,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:56:07,499 INFO L130 PetriNetUnfolder]: 210/399 cut-off events. [2022-12-13 14:56:07,499 INFO L131 PetriNetUnfolder]: For 330/330 co-relation queries the response was YES. [2022-12-13 14:56:07,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1192 conditions, 399 events. 210/399 cut-off events. For 330/330 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1594 event pairs, 27 based on Foata normal form. 7/406 useless extension candidates. Maximal degree in co-relation 1186. Up to 219 conditions per place. [2022-12-13 14:56:07,500 INFO L137 encePairwiseOnDemand]: 197/201 looper letters, 37 selfloop transitions, 2 changer transitions 21/60 dead transitions. [2022-12-13 14:56:07,500 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 60 transitions, 385 flow [2022-12-13 14:56:07,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 14:56:07,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 14:56:07,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 487 transitions. [2022-12-13 14:56:07,502 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4845771144278607 [2022-12-13 14:56:07,503 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 487 transitions. [2022-12-13 14:56:07,503 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 487 transitions. [2022-12-13 14:56:07,503 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:56:07,503 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 487 transitions. [2022-12-13 14:56:07,505 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 97.4) internal successors, (487), 5 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:56:07,507 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 201.0) internal successors, (1206), 6 states have internal predecessors, (1206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:56:07,508 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 201.0) internal successors, (1206), 6 states have internal predecessors, (1206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:56:07,508 INFO L175 Difference]: Start difference. First operand has 33 places, 24 transitions, 105 flow. Second operand 5 states and 487 transitions. [2022-12-13 14:56:07,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 60 transitions, 385 flow [2022-12-13 14:56:07,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 60 transitions, 351 flow, removed 8 selfloop flow, removed 2 redundant places. [2022-12-13 14:56:07,512 INFO L231 Difference]: Finished difference. Result has 38 places, 25 transitions, 106 flow [2022-12-13 14:56:07,512 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=201, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=106, PETRI_PLACES=38, PETRI_TRANSITIONS=25} [2022-12-13 14:56:07,512 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, 3 predicate places. [2022-12-13 14:56:07,513 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 25 transitions, 106 flow [2022-12-13 14:56:07,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 90.5) internal successors, (543), 6 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:56:07,513 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:56:07,513 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:56:07,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 14:56:07,514 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-12-13 14:56:07,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:56:07,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1312012435, now seen corresponding path program 2 times [2022-12-13 14:56:07,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:56:07,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713439773] [2022-12-13 14:56:07,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:56:07,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:56:07,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:07,622 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 14:56:07,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:56:07,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713439773] [2022-12-13 14:56:07,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713439773] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:56:07,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:56:07,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 14:56:07,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118845416] [2022-12-13 14:56:07,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:56:07,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 14:56:07,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:56:07,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 14:56:07,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-13 14:56:07,631 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 201 [2022-12-13 14:56:07,632 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 25 transitions, 106 flow. Second operand has 5 states, 5 states have (on average 95.6) internal successors, (478), 5 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:56:07,632 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:56:07,632 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 201 [2022-12-13 14:56:07,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:56:07,685 INFO L130 PetriNetUnfolder]: 77/164 cut-off events. [2022-12-13 14:56:07,685 INFO L131 PetriNetUnfolder]: For 167/178 co-relation queries the response was YES. [2022-12-13 14:56:07,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 506 conditions, 164 events. 77/164 cut-off events. For 167/178 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 578 event pairs, 18 based on Foata normal form. 18/173 useless extension candidates. Maximal degree in co-relation 497. Up to 64 conditions per place. [2022-12-13 14:56:07,687 INFO L137 encePairwiseOnDemand]: 196/201 looper letters, 22 selfloop transitions, 10 changer transitions 2/37 dead transitions. [2022-12-13 14:56:07,687 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 37 transitions, 210 flow [2022-12-13 14:56:07,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 14:56:07,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 14:56:07,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 499 transitions. [2022-12-13 14:56:07,688 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49651741293532337 [2022-12-13 14:56:07,688 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 499 transitions. [2022-12-13 14:56:07,688 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 499 transitions. [2022-12-13 14:56:07,688 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:56:07,688 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 499 transitions. [2022-12-13 14:56:07,689 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 99.8) internal successors, (499), 5 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:56:07,690 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 201.0) internal successors, (1206), 6 states have internal predecessors, (1206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:56:07,691 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 201.0) internal successors, (1206), 6 states have internal predecessors, (1206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:56:07,691 INFO L175 Difference]: Start difference. First operand has 38 places, 25 transitions, 106 flow. Second operand 5 states and 499 transitions. [2022-12-13 14:56:07,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 37 transitions, 210 flow [2022-12-13 14:56:07,691 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 37 transitions, 205 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-12-13 14:56:07,692 INFO L231 Difference]: Finished difference. Result has 40 places, 24 transitions, 125 flow [2022-12-13 14:56:07,692 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=201, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=125, PETRI_PLACES=40, PETRI_TRANSITIONS=24} [2022-12-13 14:56:07,692 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, 5 predicate places. [2022-12-13 14:56:07,692 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 24 transitions, 125 flow [2022-12-13 14:56:07,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 95.6) internal successors, (478), 5 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:56:07,693 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:56:07,693 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:56:07,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 14:56:07,693 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-12-13 14:56:07,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:56:07,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1751842011, now seen corresponding path program 1 times [2022-12-13 14:56:07,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:56:07,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126140919] [2022-12-13 14:56:07,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:56:07,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:56:07,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:07,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:56:07,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:56:07,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126140919] [2022-12-13 14:56:07,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126140919] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:56:07,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:56:07,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 14:56:07,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125867456] [2022-12-13 14:56:07,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:56:07,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 14:56:07,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:56:07,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 14:56:07,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 14:56:07,800 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 201 [2022-12-13 14:56:07,801 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 24 transitions, 125 flow. Second operand has 5 states, 5 states have (on average 91.6) internal successors, (458), 5 states have internal predecessors, (458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:56:07,801 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:56:07,801 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 201 [2022-12-13 14:56:07,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:56:07,885 INFO L130 PetriNetUnfolder]: 133/267 cut-off events. [2022-12-13 14:56:07,885 INFO L131 PetriNetUnfolder]: For 372/372 co-relation queries the response was YES. [2022-12-13 14:56:07,886 INFO L83 FinitePrefix]: Finished finitePrefix Result has 891 conditions, 267 events. 133/267 cut-off events. For 372/372 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 950 event pairs, 51 based on Foata normal form. 1/268 useless extension candidates. Maximal degree in co-relation 882. Up to 112 conditions per place. [2022-12-13 14:56:07,887 INFO L137 encePairwiseOnDemand]: 196/201 looper letters, 34 selfloop transitions, 3 changer transitions 8/45 dead transitions. [2022-12-13 14:56:07,887 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 45 transitions, 345 flow [2022-12-13 14:56:07,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 14:56:07,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 14:56:07,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 472 transitions. [2022-12-13 14:56:07,889 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4696517412935323 [2022-12-13 14:56:07,889 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 472 transitions. [2022-12-13 14:56:07,889 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 472 transitions. [2022-12-13 14:56:07,890 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:56:07,890 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 472 transitions. [2022-12-13 14:56:07,891 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 94.4) internal successors, (472), 5 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:56:07,893 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 201.0) internal successors, (1206), 6 states have internal predecessors, (1206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:56:07,893 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 201.0) internal successors, (1206), 6 states have internal predecessors, (1206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:56:07,893 INFO L175 Difference]: Start difference. First operand has 40 places, 24 transitions, 125 flow. Second operand 5 states and 472 transitions. [2022-12-13 14:56:07,894 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 45 transitions, 345 flow [2022-12-13 14:56:07,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 45 transitions, 285 flow, removed 14 selfloop flow, removed 4 redundant places. [2022-12-13 14:56:07,897 INFO L231 Difference]: Finished difference. Result has 42 places, 26 transitions, 120 flow [2022-12-13 14:56:07,897 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=201, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=120, PETRI_PLACES=42, PETRI_TRANSITIONS=26} [2022-12-13 14:56:07,897 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, 7 predicate places. [2022-12-13 14:56:07,897 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 26 transitions, 120 flow [2022-12-13 14:56:07,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 91.6) internal successors, (458), 5 states have internal predecessors, (458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:56:07,898 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:56:07,898 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:56:07,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 14:56:07,898 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-12-13 14:56:07,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:56:07,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1339781323, now seen corresponding path program 2 times [2022-12-13 14:56:07,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:56:07,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149774365] [2022-12-13 14:56:07,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:56:07,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:56:07,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:08,017 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 14:56:08,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:56:08,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149774365] [2022-12-13 14:56:08,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149774365] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:56:08,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:56:08,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 14:56:08,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160017161] [2022-12-13 14:56:08,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:56:08,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 14:56:08,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:56:08,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 14:56:08,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 14:56:08,037 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 201 [2022-12-13 14:56:08,037 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 26 transitions, 120 flow. Second operand has 5 states, 5 states have (on average 91.6) internal successors, (458), 5 states have internal predecessors, (458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:56:08,038 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:56:08,038 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 201 [2022-12-13 14:56:08,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:56:08,140 INFO L130 PetriNetUnfolder]: 145/293 cut-off events. [2022-12-13 14:56:08,141 INFO L131 PetriNetUnfolder]: For 326/326 co-relation queries the response was YES. [2022-12-13 14:56:08,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1005 conditions, 293 events. 145/293 cut-off events. For 326/326 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1212 event pairs, 27 based on Foata normal form. 1/294 useless extension candidates. Maximal degree in co-relation 994. Up to 192 conditions per place. [2022-12-13 14:56:08,142 INFO L137 encePairwiseOnDemand]: 195/201 looper letters, 0 selfloop transitions, 0 changer transitions 52/52 dead transitions. [2022-12-13 14:56:08,142 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 52 transitions, 356 flow [2022-12-13 14:56:08,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 14:56:08,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 14:56:08,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 475 transitions. [2022-12-13 14:56:08,145 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.472636815920398 [2022-12-13 14:56:08,145 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 475 transitions. [2022-12-13 14:56:08,145 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 475 transitions. [2022-12-13 14:56:08,146 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:56:08,146 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 475 transitions. [2022-12-13 14:56:08,148 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 95.0) internal successors, (475), 5 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:56:08,150 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 201.0) internal successors, (1206), 6 states have internal predecessors, (1206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:56:08,151 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 201.0) internal successors, (1206), 6 states have internal predecessors, (1206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:56:08,151 INFO L175 Difference]: Start difference. First operand has 42 places, 26 transitions, 120 flow. Second operand 5 states and 475 transitions. [2022-12-13 14:56:08,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 52 transitions, 356 flow [2022-12-13 14:56:08,153 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 52 transitions, 354 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 14:56:08,153 INFO L231 Difference]: Finished difference. Result has 43 places, 0 transitions, 0 flow [2022-12-13 14:56:08,153 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=201, PETRI_DIFFERENCE_MINUEND_FLOW=115, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=43, PETRI_TRANSITIONS=0} [2022-12-13 14:56:08,153 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, 8 predicate places. [2022-12-13 14:56:08,154 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 0 transitions, 0 flow [2022-12-13 14:56:08,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 91.6) internal successors, (458), 5 states have internal predecessors, (458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:56:08,156 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 11 remaining) [2022-12-13 14:56:08,156 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 11 remaining) [2022-12-13 14:56:08,156 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 11 remaining) [2022-12-13 14:56:08,156 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 11 remaining) [2022-12-13 14:56:08,156 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 11 remaining) [2022-12-13 14:56:08,157 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 11 remaining) [2022-12-13 14:56:08,157 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (4 of 11 remaining) [2022-12-13 14:56:08,157 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (3 of 11 remaining) [2022-12-13 14:56:08,157 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 11 remaining) [2022-12-13 14:56:08,157 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 11 remaining) [2022-12-13 14:56:08,157 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 11 remaining) [2022-12-13 14:56:08,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 14:56:08,158 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1] [2022-12-13 14:56:08,160 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 14:56:08,160 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 14:56:08,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 02:56:08 BasicIcfg [2022-12-13 14:56:08,163 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 14:56:08,163 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 14:56:08,163 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 14:56:08,163 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 14:56:08,164 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:56:03" (3/4) ... [2022-12-13 14:56:08,166 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 14:56:08,170 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-12-13 14:56:08,171 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-12-13 14:56:08,171 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-12-13 14:56:08,174 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-12-13 14:56:08,174 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 14:56:08,174 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-13 14:56:08,174 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 14:56:08,198 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b8275-044c-45b1-96f9-a73c8427d244/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 14:56:08,198 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 14:56:08,198 INFO L158 Benchmark]: Toolchain (without parser) took 5171.62ms. Allocated memory was 157.3MB in the beginning and 283.1MB in the end (delta: 125.8MB). Free memory was 113.7MB in the beginning and 235.3MB in the end (delta: -121.6MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2022-12-13 14:56:08,198 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 157.3MB. Free memory is still 102.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 14:56:08,199 INFO L158 Benchmark]: CACSL2BoogieTranslator took 324.85ms. Allocated memory is still 157.3MB. Free memory was 113.7MB in the beginning and 89.6MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-12-13 14:56:08,199 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.02ms. Allocated memory is still 157.3MB. Free memory was 89.6MB in the beginning and 87.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 14:56:08,199 INFO L158 Benchmark]: Boogie Preprocessor took 16.89ms. Allocated memory is still 157.3MB. Free memory was 87.8MB in the beginning and 86.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 14:56:08,199 INFO L158 Benchmark]: RCFGBuilder took 327.30ms. Allocated memory is still 157.3MB. Free memory was 85.9MB in the beginning and 71.7MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 14:56:08,199 INFO L158 Benchmark]: TraceAbstraction took 4432.70ms. Allocated memory was 157.3MB in the beginning and 283.1MB in the end (delta: 125.8MB). Free memory was 71.2MB in the beginning and 238.5MB in the end (delta: -167.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 14:56:08,200 INFO L158 Benchmark]: Witness Printer took 34.60ms. Allocated memory is still 283.1MB. Free memory was 238.5MB in the beginning and 235.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 14:56:08,201 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 157.3MB. Free memory is still 102.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 324.85ms. Allocated memory is still 157.3MB. Free memory was 113.7MB in the beginning and 89.6MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.02ms. Allocated memory is still 157.3MB. Free memory was 89.6MB in the beginning and 87.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.89ms. Allocated memory is still 157.3MB. Free memory was 87.8MB in the beginning and 86.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 327.30ms. Allocated memory is still 157.3MB. Free memory was 85.9MB in the beginning and 71.7MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4432.70ms. Allocated memory was 157.3MB in the beginning and 283.1MB in the end (delta: 125.8MB). Free memory was 71.2MB in the beginning and 238.5MB in the end (delta: -167.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 34.60ms. Allocated memory is still 283.1MB. Free memory was 238.5MB in the beginning and 235.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.1s, 103 PlacesBefore, 35 PlacesAfterwards, 95 TransitionsBefore, 26 TransitionsAfterwards, 1620 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 58 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 98 TotalNumberOfCompositions, 3078 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1967, independent: 1880, independent conditional: 0, independent unconditional: 1880, dependent: 87, dependent conditional: 0, dependent unconditional: 87, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 892, independent: 877, independent conditional: 0, independent unconditional: 877, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1967, independent: 1003, independent conditional: 0, independent unconditional: 1003, dependent: 72, dependent conditional: 0, dependent unconditional: 72, unknown: 892, unknown conditional: 0, unknown unconditional: 892] , Statistics on independence cache: Total cache size (in pairs): 77, Positive cache size: 69, Positive conditional cache size: 0, Positive unconditional cache size: 69, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 784]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 126 locations, 11 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.3s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 274 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 197 mSDsluCounter, 120 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 79 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 689 IncrementalHoareTripleChecker+Invalid, 715 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 41 mSDtfsCounter, 689 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=125occurred in iteration=6, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 97 NumberOfCodeBlocks, 97 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 89 ConstructedInterpolants, 0 QuantifiedInterpolants, 495 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 14:56:08,217 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f38b8275-044c-45b1-96f9-a73c8427d244/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE