./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix053_tso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/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_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix053_tso.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/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_2ede7d23-0210-46eb-9b7a-420e485f177e/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 9a8131f8693d82039b4018f716a17d0a3e1038ace11c7bb21b12bc911efac3c1 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 17:35:12,993 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 17:35:12,994 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 17:35:13,007 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 17:35:13,008 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 17:35:13,008 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 17:35:13,009 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 17:35:13,010 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 17:35:13,011 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 17:35:13,012 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 17:35:13,013 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 17:35:13,014 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 17:35:13,014 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 17:35:13,015 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 17:35:13,015 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 17:35:13,016 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 17:35:13,017 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 17:35:13,018 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 17:35:13,019 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 17:35:13,020 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 17:35:13,021 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 17:35:13,022 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 17:35:13,023 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 17:35:13,023 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 17:35:13,026 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 17:35:13,026 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 17:35:13,026 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 17:35:13,027 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 17:35:13,027 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 17:35:13,028 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 17:35:13,028 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 17:35:13,028 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 17:35:13,029 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 17:35:13,030 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 17:35:13,030 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 17:35:13,030 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 17:35:13,031 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 17:35:13,031 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 17:35:13,031 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 17:35:13,032 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 17:35:13,033 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 17:35:13,033 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-12-13 17:35:13,048 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 17:35:13,048 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 17:35:13,048 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 17:35:13,048 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 17:35:13,049 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 17:35:13,049 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 17:35:13,049 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 17:35:13,050 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 17:35:13,050 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 17:35:13,050 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 17:35:13,050 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 17:35:13,050 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 17:35:13,050 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 17:35:13,050 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 17:35:13,050 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 17:35:13,051 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 17:35:13,051 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 17:35:13,051 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 17:35:13,051 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 17:35:13,051 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 17:35:13,051 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 17:35:13,051 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 17:35:13,051 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 17:35:13,051 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 17:35:13,052 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 17:35:13,052 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:35:13,052 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 17:35:13,052 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 17:35:13,052 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 17:35:13,052 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 17:35:13,052 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 17:35:13,052 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 17:35:13,053 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 17:35:13,053 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 17:35:13,053 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_2ede7d23-0210-46eb-9b7a-420e485f177e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a8131f8693d82039b4018f716a17d0a3e1038ace11c7bb21b12bc911efac3c1 [2022-12-13 17:35:13,211 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 17:35:13,232 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 17:35:13,234 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 17:35:13,235 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 17:35:13,235 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 17:35:13,236 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-wmm/mix053_tso.oepc.i [2022-12-13 17:35:15,796 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 17:35:15,992 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 17:35:15,993 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/sv-benchmarks/c/pthread-wmm/mix053_tso.oepc.i [2022-12-13 17:35:16,003 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/data/b6f1fd76f/f0b1b4c40f844f14b8a8f7b631b88048/FLAGba4e6c227 [2022-12-13 17:35:16,364 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/data/b6f1fd76f/f0b1b4c40f844f14b8a8f7b631b88048 [2022-12-13 17:35:16,367 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 17:35:16,368 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 17:35:16,369 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 17:35:16,369 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 17:35:16,373 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 17:35:16,373 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:35:16" (1/1) ... [2022-12-13 17:35:16,374 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a3c9634 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:35:16, skipping insertion in model container [2022-12-13 17:35:16,374 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:35:16" (1/1) ... [2022-12-13 17:35:16,381 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 17:35:16,417 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 17:35:16,544 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_2ede7d23-0210-46eb-9b7a-420e485f177e/sv-benchmarks/c/pthread-wmm/mix053_tso.oepc.i[949,962] [2022-12-13 17:35:16,669 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:35:16,669 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:35:16,670 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:35:16,670 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:35:16,670 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:35:16,670 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:35:16,671 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:35:16,671 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:35:16,671 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:35:16,672 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:35:16,672 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:35:16,672 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:35:16,672 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:35:16,675 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:35:16,676 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:35:16,676 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:35:16,677 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:35:16,678 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:35:16,679 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:35:16,679 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:35:16,679 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:35:16,682 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:35:16,683 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:35:16,683 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:35:16,684 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:35:16,684 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:35:16,684 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:35:16,685 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:35:16,685 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:35:16,688 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:35:16,688 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:35:16,688 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:35:16,696 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:35:16,697 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:35:16,697 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:35:16,700 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:35:16,700 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:35:16,709 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:35:16,710 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:35:16,721 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 17:35:16,731 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_2ede7d23-0210-46eb-9b7a-420e485f177e/sv-benchmarks/c/pthread-wmm/mix053_tso.oepc.i[949,962] [2022-12-13 17:35:16,754 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:35:16,754 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:35:16,754 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:35:16,754 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:35:16,755 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:35:16,755 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:35:16,755 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:35:16,755 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:35:16,756 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:35:16,756 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:35:16,757 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:35:16,757 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:35:16,757 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:35:16,760 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:35:16,760 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:35:16,760 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:35:16,761 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:35:16,762 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:35:16,762 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:35:16,763 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:35:16,763 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:35:16,765 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:35:16,765 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:35:16,766 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:35:16,766 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:35:16,767 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:35:16,767 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:35:16,767 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:35:16,768 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:35:16,770 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:35:16,770 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:35:16,770 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:35:16,774 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:35:16,774 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:35:16,775 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:35:16,777 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:35:16,777 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:35:16,783 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:35:16,784 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:35:16,812 INFO L208 MainTranslator]: Completed translation [2022-12-13 17:35:16,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:35:16 WrapperNode [2022-12-13 17:35:16,813 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 17:35:16,814 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 17:35:16,814 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 17:35:16,814 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 17:35:16,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:35:16" (1/1) ... [2022-12-13 17:35:16,835 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:35:16" (1/1) ... [2022-12-13 17:35:16,859 INFO L138 Inliner]: procedures = 177, calls = 67, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 158 [2022-12-13 17:35:16,859 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 17:35:16,860 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 17:35:16,860 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 17:35:16,860 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 17:35:16,869 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:35:16" (1/1) ... [2022-12-13 17:35:16,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:35:16" (1/1) ... [2022-12-13 17:35:16,873 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:35:16" (1/1) ... [2022-12-13 17:35:16,873 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:35:16" (1/1) ... [2022-12-13 17:35:16,881 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:35:16" (1/1) ... [2022-12-13 17:35:16,883 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:35:16" (1/1) ... [2022-12-13 17:35:16,885 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:35:16" (1/1) ... [2022-12-13 17:35:16,886 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:35:16" (1/1) ... [2022-12-13 17:35:16,889 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 17:35:16,890 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 17:35:16,890 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 17:35:16,891 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 17:35:16,891 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:35:16" (1/1) ... [2022-12-13 17:35:16,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:35:16,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:35:16,918 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 17:35:16,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 17:35:16,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 17:35:16,953 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 17:35:16,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 17:35:16,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 17:35:16,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 17:35:16,953 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 17:35:16,953 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 17:35:16,954 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 17:35:16,954 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 17:35:16,954 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-13 17:35:16,954 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-13 17:35:16,954 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-13 17:35:16,954 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-13 17:35:16,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 17:35:16,954 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 17:35:16,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 17:35:16,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 17:35:16,956 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 17:35:17,076 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 17:35:17,078 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 17:35:17,380 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 17:35:17,484 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 17:35:17,484 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 17:35:17,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:35:17 BoogieIcfgContainer [2022-12-13 17:35:17,487 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 17:35:17,489 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 17:35:17,489 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 17:35:17,492 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 17:35:17,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 05:35:16" (1/3) ... [2022-12-13 17:35:17,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@386e44a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:35:17, skipping insertion in model container [2022-12-13 17:35:17,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:35:16" (2/3) ... [2022-12-13 17:35:17,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@386e44a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:35:17, skipping insertion in model container [2022-12-13 17:35:17,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:35:17" (3/3) ... [2022-12-13 17:35:17,495 INFO L112 eAbstractionObserver]: Analyzing ICFG mix053_tso.oepc.i [2022-12-13 17:35:17,512 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 17:35:17,512 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2022-12-13 17:35:17,512 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 17:35:17,564 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 17:35:17,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 157 places, 146 transitions, 312 flow [2022-12-13 17:35:17,647 INFO L130 PetriNetUnfolder]: 2/142 cut-off events. [2022-12-13 17:35:17,648 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 17:35:17,652 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 142 events. 2/142 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 99 event pairs, 0 based on Foata normal form. 0/129 useless extension candidates. Maximal degree in co-relation 99. Up to 2 conditions per place. [2022-12-13 17:35:17,653 INFO L82 GeneralOperation]: Start removeDead. Operand has 157 places, 146 transitions, 312 flow [2022-12-13 17:35:17,657 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 153 places, 142 transitions, 296 flow [2022-12-13 17:35:17,660 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 17:35:17,671 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 153 places, 142 transitions, 296 flow [2022-12-13 17:35:17,673 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 153 places, 142 transitions, 296 flow [2022-12-13 17:35:17,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 153 places, 142 transitions, 296 flow [2022-12-13 17:35:17,708 INFO L130 PetriNetUnfolder]: 2/142 cut-off events. [2022-12-13 17:35:17,708 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 17:35:17,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 142 events. 2/142 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 99 event pairs, 0 based on Foata normal form. 0/129 useless extension candidates. Maximal degree in co-relation 99. Up to 2 conditions per place. [2022-12-13 17:35:17,712 INFO L119 LiptonReduction]: Number of co-enabled transitions 3434 [2022-12-13 17:35:23,224 INFO L134 LiptonReduction]: Checked pairs total: 9246 [2022-12-13 17:35:23,224 INFO L136 LiptonReduction]: Total number of compositions: 148 [2022-12-13 17:35:23,234 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 17:35:23,239 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;@53bb5855, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 17:35:23,239 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-12-13 17:35:23,240 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 17:35:23,240 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 17:35:23,240 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:35:23,240 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 17:35:23,241 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:35:23,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:35:23,244 INFO L85 PathProgramCache]: Analyzing trace with hash 614, now seen corresponding path program 1 times [2022-12-13 17:35:23,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:35:23,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165539840] [2022-12-13 17:35:23,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:35:23,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:35:23,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:35:23,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:35:23,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:35:23,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165539840] [2022-12-13 17:35:23,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165539840] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:35:23,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:35:23,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 17:35:23,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106314260] [2022-12-13 17:35:23,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:35:23,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 17:35:23,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:35:23,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 17:35:23,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 17:35:23,368 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 294 [2022-12-13 17:35:23,369 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 37 transitions, 86 flow. Second operand has 2 states, 2 states have (on average 132.5) internal successors, (265), 2 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:23,369 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:35:23,369 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 294 [2022-12-13 17:35:23,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:35:24,305 INFO L130 PetriNetUnfolder]: 4337/6002 cut-off events. [2022-12-13 17:35:24,306 INFO L131 PetriNetUnfolder]: For 62/62 co-relation queries the response was YES. [2022-12-13 17:35:24,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12088 conditions, 6002 events. 4337/6002 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 321. Compared 30339 event pairs, 4337 based on Foata normal form. 0/5149 useless extension candidates. Maximal degree in co-relation 12076. Up to 5929 conditions per place. [2022-12-13 17:35:24,343 INFO L137 encePairwiseOnDemand]: 286/294 looper letters, 25 selfloop transitions, 0 changer transitions 0/29 dead transitions. [2022-12-13 17:35:24,343 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 29 transitions, 120 flow [2022-12-13 17:35:24,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 17:35:24,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 17:35:24,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 297 transitions. [2022-12-13 17:35:24,352 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5051020408163265 [2022-12-13 17:35:24,353 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 297 transitions. [2022-12-13 17:35:24,353 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 297 transitions. [2022-12-13 17:35:24,354 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:35:24,356 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 297 transitions. [2022-12-13 17:35:24,358 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 148.5) internal successors, (297), 2 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:24,362 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 294.0) internal successors, (882), 3 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:24,362 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 294.0) internal successors, (882), 3 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:24,363 INFO L175 Difference]: Start difference. First operand has 50 places, 37 transitions, 86 flow. Second operand 2 states and 297 transitions. [2022-12-13 17:35:24,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 29 transitions, 120 flow [2022-12-13 17:35:24,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 29 transitions, 116 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 17:35:24,367 INFO L231 Difference]: Finished difference. Result has 39 places, 29 transitions, 66 flow [2022-12-13 17:35:24,369 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=66, PETRI_PLACES=39, PETRI_TRANSITIONS=29} [2022-12-13 17:35:24,372 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, -11 predicate places. [2022-12-13 17:35:24,372 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 29 transitions, 66 flow [2022-12-13 17:35:24,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 132.5) internal successors, (265), 2 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:24,372 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:35:24,372 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:35:24,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 17:35:24,372 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P2Err0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:35:24,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:35:24,373 INFO L85 PathProgramCache]: Analyzing trace with hash 330547753, now seen corresponding path program 1 times [2022-12-13 17:35:24,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:35:24,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527423572] [2022-12-13 17:35:24,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:35:24,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:35:24,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:35:24,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:35:24,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:35:24,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527423572] [2022-12-13 17:35:24,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527423572] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:35:24,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:35:24,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 17:35:24,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951523600] [2022-12-13 17:35:24,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:35:24,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:35:24,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:35:24,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:35:24,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:35:24,643 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 294 [2022-12-13 17:35:24,644 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 29 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 133.33333333333334) internal successors, (400), 3 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:24,644 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:35:24,644 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 294 [2022-12-13 17:35:24,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:35:25,190 INFO L130 PetriNetUnfolder]: 3415/5026 cut-off events. [2022-12-13 17:35:25,191 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 17:35:25,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9851 conditions, 5026 events. 3415/5026 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 289. Compared 28600 event pairs, 649 based on Foata normal form. 0/4626 useless extension candidates. Maximal degree in co-relation 9848. Up to 3703 conditions per place. [2022-12-13 17:35:25,209 INFO L137 encePairwiseOnDemand]: 291/294 looper letters, 35 selfloop transitions, 2 changer transitions 2/43 dead transitions. [2022-12-13 17:35:25,209 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 43 transitions, 174 flow [2022-12-13 17:35:25,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:35:25,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 17:35:25,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 433 transitions. [2022-12-13 17:35:25,211 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4909297052154195 [2022-12-13 17:35:25,211 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 433 transitions. [2022-12-13 17:35:25,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 433 transitions. [2022-12-13 17:35:25,212 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:35:25,212 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 433 transitions. [2022-12-13 17:35:25,213 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 144.33333333333334) internal successors, (433), 3 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:25,221 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 294.0) internal successors, (1176), 4 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:25,222 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 294.0) internal successors, (1176), 4 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:25,222 INFO L175 Difference]: Start difference. First operand has 39 places, 29 transitions, 66 flow. Second operand 3 states and 433 transitions. [2022-12-13 17:35:25,222 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 43 transitions, 174 flow [2022-12-13 17:35:25,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 43 transitions, 174 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 17:35:25,224 INFO L231 Difference]: Finished difference. Result has 40 places, 27 transitions, 66 flow [2022-12-13 17:35:25,224 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=66, PETRI_PLACES=40, PETRI_TRANSITIONS=27} [2022-12-13 17:35:25,225 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, -10 predicate places. [2022-12-13 17:35:25,225 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 27 transitions, 66 flow [2022-12-13 17:35:25,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 133.33333333333334) internal successors, (400), 3 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:25,225 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:35:25,226 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:35:25,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 17:35:25,226 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:35:25,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:35:25,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1223155727, now seen corresponding path program 1 times [2022-12-13 17:35:25,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:35:25,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122962856] [2022-12-13 17:35:25,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:35:25,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:35:25,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:35:25,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:35:25,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:35:25,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122962856] [2022-12-13 17:35:25,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122962856] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:35:25,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:35:25,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 17:35:25,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322171294] [2022-12-13 17:35:25,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:35:25,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:35:25,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:35:25,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:35:25,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:35:25,887 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 294 [2022-12-13 17:35:25,888 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 27 transitions, 66 flow. Second operand has 6 states, 6 states have (on average 114.83333333333333) internal successors, (689), 6 states have internal predecessors, (689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:25,888 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:35:25,888 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 294 [2022-12-13 17:35:25,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:35:26,268 INFO L130 PetriNetUnfolder]: 2295/3247 cut-off events. [2022-12-13 17:35:26,268 INFO L131 PetriNetUnfolder]: For 210/210 co-relation queries the response was YES. [2022-12-13 17:35:26,270 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6786 conditions, 3247 events. 2295/3247 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 15759 event pairs, 460 based on Foata normal form. 0/3199 useless extension candidates. Maximal degree in co-relation 6782. Up to 3016 conditions per place. [2022-12-13 17:35:26,282 INFO L137 encePairwiseOnDemand]: 289/294 looper letters, 33 selfloop transitions, 4 changer transitions 0/41 dead transitions. [2022-12-13 17:35:26,282 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 41 transitions, 170 flow [2022-12-13 17:35:26,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 17:35:26,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 17:35:26,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 716 transitions. [2022-12-13 17:35:26,285 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.40589569160997735 [2022-12-13 17:35:26,285 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 716 transitions. [2022-12-13 17:35:26,285 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 716 transitions. [2022-12-13 17:35:26,286 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:35:26,286 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 716 transitions. [2022-12-13 17:35:26,288 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 119.33333333333333) internal successors, (716), 6 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:26,292 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 294.0) internal successors, (2058), 7 states have internal predecessors, (2058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:26,293 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 294.0) internal successors, (2058), 7 states have internal predecessors, (2058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:26,293 INFO L175 Difference]: Start difference. First operand has 40 places, 27 transitions, 66 flow. Second operand 6 states and 716 transitions. [2022-12-13 17:35:26,293 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 41 transitions, 170 flow [2022-12-13 17:35:26,294 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 41 transitions, 164 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 17:35:26,295 INFO L231 Difference]: Finished difference. Result has 41 places, 26 transitions, 68 flow [2022-12-13 17:35:26,295 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=68, PETRI_PLACES=41, PETRI_TRANSITIONS=26} [2022-12-13 17:35:26,296 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, -9 predicate places. [2022-12-13 17:35:26,296 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 26 transitions, 68 flow [2022-12-13 17:35:26,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 114.83333333333333) internal successors, (689), 6 states have internal predecessors, (689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:26,297 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:35:26,297 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:35:26,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 17:35:26,297 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:35:26,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:35:26,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1223155744, now seen corresponding path program 1 times [2022-12-13 17:35:26,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:35:26,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803002355] [2022-12-13 17:35:26,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:35:26,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:35:26,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:35:26,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:35:26,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:35:26,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803002355] [2022-12-13 17:35:26,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803002355] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:35:26,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:35:26,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 17:35:26,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096958827] [2022-12-13 17:35:26,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:35:26,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:35:26,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:35:26,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:35:26,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:35:26,940 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 294 [2022-12-13 17:35:26,940 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 26 transitions, 68 flow. Second operand has 4 states, 4 states have (on average 123.75) internal successors, (495), 4 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:26,940 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:35:26,940 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 294 [2022-12-13 17:35:26,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:35:27,700 INFO L130 PetriNetUnfolder]: 6718/9647 cut-off events. [2022-12-13 17:35:27,700 INFO L131 PetriNetUnfolder]: For 139/139 co-relation queries the response was YES. [2022-12-13 17:35:27,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19385 conditions, 9647 events. 6718/9647 cut-off events. For 139/139 co-relation queries the response was YES. Maximal size of possible extension queue 396. Compared 53808 event pairs, 506 based on Foata normal form. 250/9897 useless extension candidates. Maximal degree in co-relation 19381. Up to 6985 conditions per place. [2022-12-13 17:35:27,729 INFO L137 encePairwiseOnDemand]: 283/294 looper letters, 50 selfloop transitions, 12 changer transitions 0/63 dead transitions. [2022-12-13 17:35:27,729 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 63 transitions, 286 flow [2022-12-13 17:35:27,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:35:27,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 17:35:27,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 548 transitions. [2022-12-13 17:35:27,731 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46598639455782315 [2022-12-13 17:35:27,731 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 548 transitions. [2022-12-13 17:35:27,731 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 548 transitions. [2022-12-13 17:35:27,732 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:35:27,732 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 548 transitions. [2022-12-13 17:35:27,732 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:27,733 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 294.0) internal successors, (1470), 5 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:27,734 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 294.0) internal successors, (1470), 5 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:27,734 INFO L175 Difference]: Start difference. First operand has 41 places, 26 transitions, 68 flow. Second operand 4 states and 548 transitions. [2022-12-13 17:35:27,734 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 63 transitions, 286 flow [2022-12-13 17:35:27,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 63 transitions, 271 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 17:35:27,735 INFO L231 Difference]: Finished difference. Result has 42 places, 36 transitions, 138 flow [2022-12-13 17:35:27,735 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=61, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=138, PETRI_PLACES=42, PETRI_TRANSITIONS=36} [2022-12-13 17:35:27,736 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, -8 predicate places. [2022-12-13 17:35:27,736 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 36 transitions, 138 flow [2022-12-13 17:35:27,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 123.75) internal successors, (495), 4 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:27,737 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:35:27,737 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:35:27,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 17:35:27,737 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:35:27,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:35:27,737 INFO L85 PathProgramCache]: Analyzing trace with hash 736876056, now seen corresponding path program 1 times [2022-12-13 17:35:27,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:35:27,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614374354] [2022-12-13 17:35:27,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:35:27,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:35:27,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:35:28,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:35:28,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:35:28,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614374354] [2022-12-13 17:35:28,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614374354] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:35:28,009 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:35:28,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 17:35:28,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293542559] [2022-12-13 17:35:28,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:35:28,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:35:28,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:35:28,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:35:28,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:35:28,019 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 294 [2022-12-13 17:35:28,019 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 36 transitions, 138 flow. Second operand has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:28,019 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:35:28,019 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 294 [2022-12-13 17:35:28,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:35:28,882 INFO L130 PetriNetUnfolder]: 6821/9865 cut-off events. [2022-12-13 17:35:28,882 INFO L131 PetriNetUnfolder]: For 3692/3790 co-relation queries the response was YES. [2022-12-13 17:35:28,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26384 conditions, 9865 events. 6821/9865 cut-off events. For 3692/3790 co-relation queries the response was YES. Maximal size of possible extension queue 428. Compared 55636 event pairs, 1709 based on Foata normal form. 68/9769 useless extension candidates. Maximal degree in co-relation 26378. Up to 8158 conditions per place. [2022-12-13 17:35:28,912 INFO L137 encePairwiseOnDemand]: 290/294 looper letters, 45 selfloop transitions, 4 changer transitions 0/55 dead transitions. [2022-12-13 17:35:28,912 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 55 transitions, 302 flow [2022-12-13 17:35:28,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:35:28,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 17:35:28,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 428 transitions. [2022-12-13 17:35:28,914 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4852607709750567 [2022-12-13 17:35:28,914 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 428 transitions. [2022-12-13 17:35:28,914 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 428 transitions. [2022-12-13 17:35:28,914 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:35:28,914 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 428 transitions. [2022-12-13 17:35:28,915 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:28,915 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 294.0) internal successors, (1176), 4 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:28,916 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 294.0) internal successors, (1176), 4 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:28,916 INFO L175 Difference]: Start difference. First operand has 42 places, 36 transitions, 138 flow. Second operand 3 states and 428 transitions. [2022-12-13 17:35:28,916 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 55 transitions, 302 flow [2022-12-13 17:35:28,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 55 transitions, 302 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 17:35:28,917 INFO L231 Difference]: Finished difference. Result has 45 places, 39 transitions, 169 flow [2022-12-13 17:35:28,918 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=169, PETRI_PLACES=45, PETRI_TRANSITIONS=39} [2022-12-13 17:35:28,918 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, -5 predicate places. [2022-12-13 17:35:28,918 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 39 transitions, 169 flow [2022-12-13 17:35:28,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:28,918 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:35:28,918 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:35:28,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 17:35:28,919 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:35:28,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:35:28,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1562161904, now seen corresponding path program 1 times [2022-12-13 17:35:28,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:35:28,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920325846] [2022-12-13 17:35:28,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:35:28,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:35:28,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:35:29,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:35:29,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:35:29,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920325846] [2022-12-13 17:35:29,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920325846] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:35:29,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:35:29,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 17:35:29,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040885353] [2022-12-13 17:35:29,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:35:29,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:35:29,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:35:29,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:35:29,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:35:29,071 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 294 [2022-12-13 17:35:29,072 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 39 transitions, 169 flow. Second operand has 4 states, 4 states have (on average 133.25) internal successors, (533), 4 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:29,072 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:35:29,072 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 294 [2022-12-13 17:35:29,072 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:35:30,048 INFO L130 PetriNetUnfolder]: 6887/9971 cut-off events. [2022-12-13 17:35:30,048 INFO L131 PetriNetUnfolder]: For 5873/5967 co-relation queries the response was YES. [2022-12-13 17:35:30,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28559 conditions, 9971 events. 6887/9971 cut-off events. For 5873/5967 co-relation queries the response was YES. Maximal size of possible extension queue 432. Compared 56548 event pairs, 1188 based on Foata normal form. 78/9871 useless extension candidates. Maximal degree in co-relation 28551. Up to 7101 conditions per place. [2022-12-13 17:35:30,083 INFO L137 encePairwiseOnDemand]: 287/294 looper letters, 54 selfloop transitions, 14 changer transitions 0/74 dead transitions. [2022-12-13 17:35:30,084 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 74 transitions, 436 flow [2022-12-13 17:35:30,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:35:30,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 17:35:30,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 571 transitions. [2022-12-13 17:35:30,085 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48554421768707484 [2022-12-13 17:35:30,085 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 571 transitions. [2022-12-13 17:35:30,085 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 571 transitions. [2022-12-13 17:35:30,085 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:35:30,085 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 571 transitions. [2022-12-13 17:35:30,086 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 142.75) internal successors, (571), 4 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:30,087 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 294.0) internal successors, (1470), 5 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:30,087 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 294.0) internal successors, (1470), 5 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:30,087 INFO L175 Difference]: Start difference. First operand has 45 places, 39 transitions, 169 flow. Second operand 4 states and 571 transitions. [2022-12-13 17:35:30,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 74 transitions, 436 flow [2022-12-13 17:35:30,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 74 transitions, 432 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 17:35:30,092 INFO L231 Difference]: Finished difference. Result has 48 places, 47 transitions, 256 flow [2022-12-13 17:35:30,092 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=256, PETRI_PLACES=48, PETRI_TRANSITIONS=47} [2022-12-13 17:35:30,093 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, -2 predicate places. [2022-12-13 17:35:30,093 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 47 transitions, 256 flow [2022-12-13 17:35:30,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 133.25) internal successors, (533), 4 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:30,093 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:35:30,093 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:35:30,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 17:35:30,093 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:35:30,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:35:30,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1562302334, now seen corresponding path program 2 times [2022-12-13 17:35:30,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:35:30,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163265442] [2022-12-13 17:35:30,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:35:30,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:35:30,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:35:30,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:35:30,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:35:30,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163265442] [2022-12-13 17:35:30,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163265442] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:35:30,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:35:30,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:35:30,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841337796] [2022-12-13 17:35:30,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:35:30,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 17:35:30,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:35:30,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 17:35:30,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:35:30,349 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 294 [2022-12-13 17:35:30,350 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 47 transitions, 256 flow. Second operand has 5 states, 5 states have (on average 131.6) internal successors, (658), 5 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:30,350 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:35:30,350 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 294 [2022-12-13 17:35:30,350 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:35:31,211 INFO L130 PetriNetUnfolder]: 6724/9724 cut-off events. [2022-12-13 17:35:31,211 INFO L131 PetriNetUnfolder]: For 11515/11779 co-relation queries the response was YES. [2022-12-13 17:35:31,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30698 conditions, 9724 events. 6724/9724 cut-off events. For 11515/11779 co-relation queries the response was YES. Maximal size of possible extension queue 417. Compared 54120 event pairs, 1210 based on Foata normal form. 213/9801 useless extension candidates. Maximal degree in co-relation 30689. Up to 7077 conditions per place. [2022-12-13 17:35:31,245 INFO L137 encePairwiseOnDemand]: 287/294 looper letters, 53 selfloop transitions, 14 changer transitions 0/73 dead transitions. [2022-12-13 17:35:31,245 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 73 transitions, 485 flow [2022-12-13 17:35:31,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:35:31,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 17:35:31,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 566 transitions. [2022-12-13 17:35:31,247 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4812925170068027 [2022-12-13 17:35:31,247 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 566 transitions. [2022-12-13 17:35:31,247 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 566 transitions. [2022-12-13 17:35:31,247 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:35:31,247 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 566 transitions. [2022-12-13 17:35:31,248 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 141.5) internal successors, (566), 4 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:31,249 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 294.0) internal successors, (1470), 5 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:31,249 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 294.0) internal successors, (1470), 5 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:31,249 INFO L175 Difference]: Start difference. First operand has 48 places, 47 transitions, 256 flow. Second operand 4 states and 566 transitions. [2022-12-13 17:35:31,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 73 transitions, 485 flow [2022-12-13 17:35:31,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 73 transitions, 474 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-12-13 17:35:31,255 INFO L231 Difference]: Finished difference. Result has 51 places, 47 transitions, 287 flow [2022-12-13 17:35:31,255 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=245, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=287, PETRI_PLACES=51, PETRI_TRANSITIONS=47} [2022-12-13 17:35:31,255 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, 1 predicate places. [2022-12-13 17:35:31,255 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 47 transitions, 287 flow [2022-12-13 17:35:31,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 131.6) internal successors, (658), 5 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:31,256 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:35:31,256 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:35:31,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 17:35:31,256 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:35:31,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:35:31,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1562159672, now seen corresponding path program 1 times [2022-12-13 17:35:31,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:35:31,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324153892] [2022-12-13 17:35:31,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:35:31,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:35:31,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:35:31,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:35:31,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:35:31,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324153892] [2022-12-13 17:35:31,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324153892] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:35:31,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:35:31,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:35:31,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862549042] [2022-12-13 17:35:31,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:35:31,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 17:35:31,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:35:31,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 17:35:31,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:35:31,539 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 294 [2022-12-13 17:35:31,540 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 47 transitions, 287 flow. Second operand has 5 states, 5 states have (on average 130.6) internal successors, (653), 5 states have internal predecessors, (653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:31,540 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:35:31,540 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 294 [2022-12-13 17:35:31,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:35:32,408 INFO L130 PetriNetUnfolder]: 6885/9972 cut-off events. [2022-12-13 17:35:32,408 INFO L131 PetriNetUnfolder]: For 14703/14940 co-relation queries the response was YES. [2022-12-13 17:35:32,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32188 conditions, 9972 events. 6885/9972 cut-off events. For 14703/14940 co-relation queries the response was YES. Maximal size of possible extension queue 447. Compared 56150 event pairs, 1226 based on Foata normal form. 206/10082 useless extension candidates. Maximal degree in co-relation 32178. Up to 7547 conditions per place. [2022-12-13 17:35:32,443 INFO L137 encePairwiseOnDemand]: 288/294 looper letters, 65 selfloop transitions, 9 changer transitions 0/80 dead transitions. [2022-12-13 17:35:32,443 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 80 transitions, 568 flow [2022-12-13 17:35:32,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:35:32,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 17:35:32,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 562 transitions. [2022-12-13 17:35:32,445 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.477891156462585 [2022-12-13 17:35:32,445 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 562 transitions. [2022-12-13 17:35:32,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 562 transitions. [2022-12-13 17:35:32,445 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:35:32,445 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 562 transitions. [2022-12-13 17:35:32,446 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 140.5) internal successors, (562), 4 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:32,447 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 294.0) internal successors, (1470), 5 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:32,448 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 294.0) internal successors, (1470), 5 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:32,448 INFO L175 Difference]: Start difference. First operand has 51 places, 47 transitions, 287 flow. Second operand 4 states and 562 transitions. [2022-12-13 17:35:32,448 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 80 transitions, 568 flow [2022-12-13 17:35:32,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 80 transitions, 540 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 17:35:32,453 INFO L231 Difference]: Finished difference. Result has 52 places, 52 transitions, 322 flow [2022-12-13 17:35:32,454 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=322, PETRI_PLACES=52, PETRI_TRANSITIONS=52} [2022-12-13 17:35:32,454 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, 2 predicate places. [2022-12-13 17:35:32,454 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 52 transitions, 322 flow [2022-12-13 17:35:32,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 130.6) internal successors, (653), 5 states have internal predecessors, (653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:32,455 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:35:32,455 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:35:32,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 17:35:32,455 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:35:32,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:35:32,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1182380746, now seen corresponding path program 1 times [2022-12-13 17:35:32,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:35:32,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899351582] [2022-12-13 17:35:32,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:35:32,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:35:32,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:35:33,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:35:33,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:35:33,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899351582] [2022-12-13 17:35:33,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899351582] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:35:33,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:35:33,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:35:33,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257706737] [2022-12-13 17:35:33,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:35:33,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 17:35:33,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:35:33,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 17:35:33,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:35:33,170 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 294 [2022-12-13 17:35:33,170 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 52 transitions, 322 flow. Second operand has 5 states, 5 states have (on average 120.8) internal successors, (604), 5 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:33,170 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:35:33,171 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 294 [2022-12-13 17:35:33,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:35:34,463 INFO L130 PetriNetUnfolder]: 9202/12667 cut-off events. [2022-12-13 17:35:34,463 INFO L131 PetriNetUnfolder]: For 16316/16316 co-relation queries the response was YES. [2022-12-13 17:35:34,479 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42913 conditions, 12667 events. 9202/12667 cut-off events. For 16316/16316 co-relation queries the response was YES. Maximal size of possible extension queue 452. Compared 64346 event pairs, 565 based on Foata normal form. 40/12707 useless extension candidates. Maximal degree in co-relation 42902. Up to 8235 conditions per place. [2022-12-13 17:35:34,509 INFO L137 encePairwiseOnDemand]: 282/294 looper letters, 83 selfloop transitions, 47 changer transitions 0/130 dead transitions. [2022-12-13 17:35:34,509 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 130 transitions, 894 flow [2022-12-13 17:35:34,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 17:35:34,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 17:35:34,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 932 transitions. [2022-12-13 17:35:34,511 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45286686103012636 [2022-12-13 17:35:34,511 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 932 transitions. [2022-12-13 17:35:34,511 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 932 transitions. [2022-12-13 17:35:34,512 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:35:34,512 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 932 transitions. [2022-12-13 17:35:34,513 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 133.14285714285714) internal successors, (932), 7 states have internal predecessors, (932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:34,515 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 294.0) internal successors, (2352), 8 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:34,515 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 294.0) internal successors, (2352), 8 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:34,515 INFO L175 Difference]: Start difference. First operand has 52 places, 52 transitions, 322 flow. Second operand 7 states and 932 transitions. [2022-12-13 17:35:34,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 130 transitions, 894 flow [2022-12-13 17:35:34,524 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 130 transitions, 874 flow, removed 2 selfloop flow, removed 2 redundant places. [2022-12-13 17:35:34,526 INFO L231 Difference]: Finished difference. Result has 60 places, 76 transitions, 656 flow [2022-12-13 17:35:34,526 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=309, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=656, PETRI_PLACES=60, PETRI_TRANSITIONS=76} [2022-12-13 17:35:34,526 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, 10 predicate places. [2022-12-13 17:35:34,526 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 76 transitions, 656 flow [2022-12-13 17:35:34,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 120.8) internal successors, (604), 5 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:34,527 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:35:34,527 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:35:34,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 17:35:34,527 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:35:34,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:35:34,527 INFO L85 PathProgramCache]: Analyzing trace with hash -594365762, now seen corresponding path program 2 times [2022-12-13 17:35:34,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:35:34,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831931570] [2022-12-13 17:35:34,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:35:34,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:35:34,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:35:34,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:35:34,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:35:34,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831931570] [2022-12-13 17:35:34,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831931570] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:35:34,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:35:34,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 17:35:34,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279073489] [2022-12-13 17:35:34,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:35:34,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:35:34,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:35:34,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:35:34,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:35:34,772 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 294 [2022-12-13 17:35:34,773 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 76 transitions, 656 flow. Second operand has 6 states, 6 states have (on average 130.33333333333334) internal successors, (782), 6 states have internal predecessors, (782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:34,773 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:35:34,773 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 294 [2022-12-13 17:35:34,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:35:36,045 INFO L130 PetriNetUnfolder]: 8799/12624 cut-off events. [2022-12-13 17:35:36,045 INFO L131 PetriNetUnfolder]: For 40545/41038 co-relation queries the response was YES. [2022-12-13 17:35:36,065 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52695 conditions, 12624 events. 8799/12624 cut-off events. For 40545/41038 co-relation queries the response was YES. Maximal size of possible extension queue 604. Compared 72541 event pairs, 1216 based on Foata normal form. 382/12699 useless extension candidates. Maximal degree in co-relation 52681. Up to 6980 conditions per place. [2022-12-13 17:35:36,097 INFO L137 encePairwiseOnDemand]: 286/294 looper letters, 79 selfloop transitions, 40 changer transitions 0/135 dead transitions. [2022-12-13 17:35:36,098 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 135 transitions, 1231 flow [2022-12-13 17:35:36,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 17:35:36,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 17:35:36,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 844 transitions. [2022-12-13 17:35:36,100 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47845804988662133 [2022-12-13 17:35:36,100 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 844 transitions. [2022-12-13 17:35:36,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 844 transitions. [2022-12-13 17:35:36,100 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:35:36,100 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 844 transitions. [2022-12-13 17:35:36,101 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 140.66666666666666) internal successors, (844), 6 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:36,103 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 294.0) internal successors, (2058), 7 states have internal predecessors, (2058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:36,103 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 294.0) internal successors, (2058), 7 states have internal predecessors, (2058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:36,103 INFO L175 Difference]: Start difference. First operand has 60 places, 76 transitions, 656 flow. Second operand 6 states and 844 transitions. [2022-12-13 17:35:36,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 135 transitions, 1231 flow [2022-12-13 17:35:36,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 135 transitions, 1163 flow, removed 22 selfloop flow, removed 2 redundant places. [2022-12-13 17:35:36,163 INFO L231 Difference]: Finished difference. Result has 65 places, 93 transitions, 901 flow [2022-12-13 17:35:36,164 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=606, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=901, PETRI_PLACES=65, PETRI_TRANSITIONS=93} [2022-12-13 17:35:36,164 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, 15 predicate places. [2022-12-13 17:35:36,164 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 93 transitions, 901 flow [2022-12-13 17:35:36,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 130.33333333333334) internal successors, (782), 6 states have internal predecessors, (782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:36,164 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:35:36,164 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:35:36,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 17:35:36,165 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:35:36,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:35:36,165 INFO L85 PathProgramCache]: Analyzing trace with hash 843359645, now seen corresponding path program 1 times [2022-12-13 17:35:36,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:35:36,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963574577] [2022-12-13 17:35:36,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:35:36,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:35:36,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:35:36,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:35:36,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:35:36,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963574577] [2022-12-13 17:35:36,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963574577] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:35:36,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:35:36,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 17:35:36,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270232389] [2022-12-13 17:35:36,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:35:36,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:35:36,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:35:36,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:35:36,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:35:36,495 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 294 [2022-12-13 17:35:36,496 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 93 transitions, 901 flow. Second operand has 6 states, 6 states have (on average 130.5) internal successors, (783), 6 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:36,496 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:35:36,496 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 294 [2022-12-13 17:35:36,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:35:37,952 INFO L130 PetriNetUnfolder]: 9507/13667 cut-off events. [2022-12-13 17:35:37,953 INFO L131 PetriNetUnfolder]: For 61094/61699 co-relation queries the response was YES. [2022-12-13 17:35:37,977 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62762 conditions, 13667 events. 9507/13667 cut-off events. For 61094/61699 co-relation queries the response was YES. Maximal size of possible extension queue 673. Compared 80237 event pairs, 1306 based on Foata normal form. 303/13592 useless extension candidates. Maximal degree in co-relation 62745. Up to 6961 conditions per place. [2022-12-13 17:35:38,017 INFO L137 encePairwiseOnDemand]: 286/294 looper letters, 79 selfloop transitions, 44 changer transitions 0/139 dead transitions. [2022-12-13 17:35:38,017 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 139 transitions, 1373 flow [2022-12-13 17:35:38,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 17:35:38,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 17:35:38,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 843 transitions. [2022-12-13 17:35:38,019 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.477891156462585 [2022-12-13 17:35:38,019 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 843 transitions. [2022-12-13 17:35:38,019 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 843 transitions. [2022-12-13 17:35:38,019 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:35:38,019 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 843 transitions. [2022-12-13 17:35:38,020 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 140.5) internal successors, (843), 6 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:38,021 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 294.0) internal successors, (2058), 7 states have internal predecessors, (2058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:38,022 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 294.0) internal successors, (2058), 7 states have internal predecessors, (2058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:38,022 INFO L175 Difference]: Start difference. First operand has 65 places, 93 transitions, 901 flow. Second operand 6 states and 843 transitions. [2022-12-13 17:35:38,022 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 139 transitions, 1373 flow [2022-12-13 17:35:38,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 139 transitions, 1333 flow, removed 8 selfloop flow, removed 2 redundant places. [2022-12-13 17:35:38,103 INFO L231 Difference]: Finished difference. Result has 69 places, 97 transitions, 1035 flow [2022-12-13 17:35:38,103 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=861, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1035, PETRI_PLACES=69, PETRI_TRANSITIONS=97} [2022-12-13 17:35:38,104 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, 19 predicate places. [2022-12-13 17:35:38,104 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 97 transitions, 1035 flow [2022-12-13 17:35:38,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 130.5) internal successors, (783), 6 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:38,104 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:35:38,104 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:35:38,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 17:35:38,104 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:35:38,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:35:38,104 INFO L85 PathProgramCache]: Analyzing trace with hash 706128845, now seen corresponding path program 2 times [2022-12-13 17:35:38,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:35:38,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460052460] [2022-12-13 17:35:38,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:35:38,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:35:38,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:35:38,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:35:38,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:35:38,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460052460] [2022-12-13 17:35:38,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460052460] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:35:38,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:35:38,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 17:35:38,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948988807] [2022-12-13 17:35:38,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:35:38,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:35:38,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:35:38,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:35:38,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:35:38,873 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 294 [2022-12-13 17:35:38,874 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 97 transitions, 1035 flow. Second operand has 6 states, 6 states have (on average 128.5) internal successors, (771), 6 states have internal predecessors, (771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:38,874 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:35:38,874 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 294 [2022-12-13 17:35:38,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:35:40,370 INFO L130 PetriNetUnfolder]: 9813/14149 cut-off events. [2022-12-13 17:35:40,370 INFO L131 PetriNetUnfolder]: For 77940/78451 co-relation queries the response was YES. [2022-12-13 17:35:40,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69750 conditions, 14149 events. 9813/14149 cut-off events. For 77940/78451 co-relation queries the response was YES. Maximal size of possible extension queue 703. Compared 84048 event pairs, 1411 based on Foata normal form. 294/14023 useless extension candidates. Maximal degree in co-relation 69731. Up to 9280 conditions per place. [2022-12-13 17:35:40,443 INFO L137 encePairwiseOnDemand]: 286/294 looper letters, 90 selfloop transitions, 33 changer transitions 0/139 dead transitions. [2022-12-13 17:35:40,443 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 139 transitions, 1567 flow [2022-12-13 17:35:40,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 17:35:40,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 17:35:40,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 692 transitions. [2022-12-13 17:35:40,445 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4707482993197279 [2022-12-13 17:35:40,445 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 692 transitions. [2022-12-13 17:35:40,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 692 transitions. [2022-12-13 17:35:40,445 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:35:40,445 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 692 transitions. [2022-12-13 17:35:40,446 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 138.4) internal successors, (692), 5 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:40,448 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 294.0) internal successors, (1764), 6 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:40,448 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 294.0) internal successors, (1764), 6 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:40,448 INFO L175 Difference]: Start difference. First operand has 69 places, 97 transitions, 1035 flow. Second operand 5 states and 692 transitions. [2022-12-13 17:35:40,448 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 139 transitions, 1567 flow [2022-12-13 17:35:40,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 139 transitions, 1501 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 17:35:40,534 INFO L231 Difference]: Finished difference. Result has 70 places, 105 transitions, 1192 flow [2022-12-13 17:35:40,534 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=975, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1192, PETRI_PLACES=70, PETRI_TRANSITIONS=105} [2022-12-13 17:35:40,534 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, 20 predicate places. [2022-12-13 17:35:40,534 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 105 transitions, 1192 flow [2022-12-13 17:35:40,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 128.5) internal successors, (771), 6 states have internal predecessors, (771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:40,534 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:35:40,535 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:35:40,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 17:35:40,535 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:35:40,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:35:40,535 INFO L85 PathProgramCache]: Analyzing trace with hash 708406415, now seen corresponding path program 3 times [2022-12-13 17:35:40,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:35:40,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946436858] [2022-12-13 17:35:40,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:35:40,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:35:40,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:35:40,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:35:40,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:35:40,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946436858] [2022-12-13 17:35:40,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946436858] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:35:40,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:35:40,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 17:35:40,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889532620] [2022-12-13 17:35:40,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:35:40,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 17:35:40,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:35:40,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 17:35:40,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-13 17:35:40,924 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 294 [2022-12-13 17:35:40,924 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 105 transitions, 1192 flow. Second operand has 7 states, 7 states have (on average 129.14285714285714) internal successors, (904), 7 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:40,925 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:35:40,925 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 294 [2022-12-13 17:35:40,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:35:42,536 INFO L130 PetriNetUnfolder]: 10183/14700 cut-off events. [2022-12-13 17:35:42,536 INFO L131 PetriNetUnfolder]: For 93890/94622 co-relation queries the response was YES. [2022-12-13 17:35:42,567 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74577 conditions, 14700 events. 10183/14700 cut-off events. For 93890/94622 co-relation queries the response was YES. Maximal size of possible extension queue 754. Compared 88441 event pairs, 1411 based on Foata normal form. 306/14578 useless extension candidates. Maximal degree in co-relation 74557. Up to 7482 conditions per place. [2022-12-13 17:35:42,612 INFO L137 encePairwiseOnDemand]: 286/294 looper letters, 85 selfloop transitions, 64 changer transitions 0/165 dead transitions. [2022-12-13 17:35:42,613 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 165 transitions, 1940 flow [2022-12-13 17:35:42,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 17:35:42,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 17:35:42,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 837 transitions. [2022-12-13 17:35:42,615 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4744897959183674 [2022-12-13 17:35:42,615 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 837 transitions. [2022-12-13 17:35:42,615 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 837 transitions. [2022-12-13 17:35:42,615 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:35:42,615 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 837 transitions. [2022-12-13 17:35:42,616 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 139.5) internal successors, (837), 6 states have internal predecessors, (837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:42,618 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 294.0) internal successors, (2058), 7 states have internal predecessors, (2058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:42,618 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 294.0) internal successors, (2058), 7 states have internal predecessors, (2058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:42,618 INFO L175 Difference]: Start difference. First operand has 70 places, 105 transitions, 1192 flow. Second operand 6 states and 837 transitions. [2022-12-13 17:35:42,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 165 transitions, 1940 flow [2022-12-13 17:35:42,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 165 transitions, 1865 flow, removed 12 selfloop flow, removed 3 redundant places. [2022-12-13 17:35:42,752 INFO L231 Difference]: Finished difference. Result has 74 places, 123 transitions, 1584 flow [2022-12-13 17:35:42,752 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=1121, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1584, PETRI_PLACES=74, PETRI_TRANSITIONS=123} [2022-12-13 17:35:42,753 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, 24 predicate places. [2022-12-13 17:35:42,753 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 123 transitions, 1584 flow [2022-12-13 17:35:42,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 129.14285714285714) internal successors, (904), 7 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:42,753 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:35:42,753 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:35:42,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 17:35:42,753 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:35:42,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:35:42,754 INFO L85 PathProgramCache]: Analyzing trace with hash 845435405, now seen corresponding path program 4 times [2022-12-13 17:35:42,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:35:42,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225009462] [2022-12-13 17:35:42,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:35:42,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:35:42,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:35:43,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:35:43,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:35:43,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225009462] [2022-12-13 17:35:43,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225009462] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:35:43,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:35:43,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 17:35:43,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895369941] [2022-12-13 17:35:43,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:35:43,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:35:43,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:35:43,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:35:43,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:35:43,053 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 294 [2022-12-13 17:35:43,054 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 123 transitions, 1584 flow. Second operand has 6 states, 6 states have (on average 129.5) internal successors, (777), 6 states have internal predecessors, (777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:43,054 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:35:43,054 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 294 [2022-12-13 17:35:43,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:35:45,041 INFO L130 PetriNetUnfolder]: 12186/17708 cut-off events. [2022-12-13 17:35:45,041 INFO L131 PetriNetUnfolder]: For 144864/145876 co-relation queries the response was YES. [2022-12-13 17:35:45,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92129 conditions, 17708 events. 12186/17708 cut-off events. For 144864/145876 co-relation queries the response was YES. Maximal size of possible extension queue 937. Compared 111130 event pairs, 1497 based on Foata normal form. 915/18204 useless extension candidates. Maximal degree in co-relation 92107. Up to 8493 conditions per place. [2022-12-13 17:35:45,155 INFO L137 encePairwiseOnDemand]: 286/294 looper letters, 91 selfloop transitions, 83 changer transitions 0/190 dead transitions. [2022-12-13 17:35:45,155 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 190 transitions, 2500 flow [2022-12-13 17:35:45,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 17:35:45,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 17:35:45,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 967 transitions. [2022-12-13 17:35:45,158 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46987366375121475 [2022-12-13 17:35:45,158 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 967 transitions. [2022-12-13 17:35:45,158 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 967 transitions. [2022-12-13 17:35:45,158 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:35:45,158 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 967 transitions. [2022-12-13 17:35:45,160 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 138.14285714285714) internal successors, (967), 7 states have internal predecessors, (967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:45,162 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 294.0) internal successors, (2352), 8 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:45,162 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 294.0) internal successors, (2352), 8 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:45,162 INFO L175 Difference]: Start difference. First operand has 74 places, 123 transitions, 1584 flow. Second operand 7 states and 967 transitions. [2022-12-13 17:35:45,162 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 190 transitions, 2500 flow [2022-12-13 17:35:45,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 190 transitions, 2424 flow, removed 16 selfloop flow, removed 1 redundant places. [2022-12-13 17:35:45,385 INFO L231 Difference]: Finished difference. Result has 81 places, 144 transitions, 2144 flow [2022-12-13 17:35:45,385 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=1516, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2144, PETRI_PLACES=81, PETRI_TRANSITIONS=144} [2022-12-13 17:35:45,386 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, 31 predicate places. [2022-12-13 17:35:45,386 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 144 transitions, 2144 flow [2022-12-13 17:35:45,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 129.5) internal successors, (777), 6 states have internal predecessors, (777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:45,386 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:35:45,386 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:35:45,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 17:35:45,386 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:35:45,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:35:45,387 INFO L85 PathProgramCache]: Analyzing trace with hash 845443341, now seen corresponding path program 1 times [2022-12-13 17:35:45,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:35:45,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82885510] [2022-12-13 17:35:45,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:35:45,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:35:45,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:35:45,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:35:45,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:35:45,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82885510] [2022-12-13 17:35:45,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82885510] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:35:45,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:35:45,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:35:45,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233616019] [2022-12-13 17:35:45,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:35:45,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:35:45,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:35:45,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:35:45,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:35:45,515 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 294 [2022-12-13 17:35:45,516 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 144 transitions, 2144 flow. Second operand has 4 states, 4 states have (on average 129.5) internal successors, (518), 4 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:45,516 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:35:45,516 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 294 [2022-12-13 17:35:45,517 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:35:47,282 INFO L130 PetriNetUnfolder]: 10079/14784 cut-off events. [2022-12-13 17:35:47,282 INFO L131 PetriNetUnfolder]: For 237385/241857 co-relation queries the response was YES. [2022-12-13 17:35:47,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87970 conditions, 14784 events. 10079/14784 cut-off events. For 237385/241857 co-relation queries the response was YES. Maximal size of possible extension queue 952. Compared 95394 event pairs, 1528 based on Foata normal form. 2930/17196 useless extension candidates. Maximal degree in co-relation 87946. Up to 9308 conditions per place. [2022-12-13 17:35:47,365 INFO L137 encePairwiseOnDemand]: 287/294 looper letters, 317 selfloop transitions, 10 changer transitions 16/363 dead transitions. [2022-12-13 17:35:47,365 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 363 transitions, 6416 flow [2022-12-13 17:35:47,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 17:35:47,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 17:35:47,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 694 transitions. [2022-12-13 17:35:47,367 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47210884353741495 [2022-12-13 17:35:47,368 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 694 transitions. [2022-12-13 17:35:47,368 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 694 transitions. [2022-12-13 17:35:47,368 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:35:47,368 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 694 transitions. [2022-12-13 17:35:47,369 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 138.8) internal successors, (694), 5 states have internal predecessors, (694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:47,370 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 294.0) internal successors, (1764), 6 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:47,370 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 294.0) internal successors, (1764), 6 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:47,370 INFO L175 Difference]: Start difference. First operand has 81 places, 144 transitions, 2144 flow. Second operand 5 states and 694 transitions. [2022-12-13 17:35:47,371 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 363 transitions, 6416 flow [2022-12-13 17:35:47,483 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 363 transitions, 6224 flow, removed 61 selfloop flow, removed 3 redundant places. [2022-12-13 17:35:47,486 INFO L231 Difference]: Finished difference. Result has 85 places, 146 transitions, 2086 flow [2022-12-13 17:35:47,486 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=1967, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=2086, PETRI_PLACES=85, PETRI_TRANSITIONS=146} [2022-12-13 17:35:47,487 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, 35 predicate places. [2022-12-13 17:35:47,487 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 146 transitions, 2086 flow [2022-12-13 17:35:47,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 129.5) internal successors, (518), 4 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:47,487 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:35:47,487 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:35:47,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 17:35:47,487 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:35:47,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:35:47,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1590699582, now seen corresponding path program 1 times [2022-12-13 17:35:47,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:35:47,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626878113] [2022-12-13 17:35:47,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:35:47,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:35:47,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:35:47,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:35:47,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:35:47,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626878113] [2022-12-13 17:35:47,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626878113] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:35:47,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:35:47,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 17:35:47,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926202592] [2022-12-13 17:35:47,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:35:47,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 17:35:47,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:35:47,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 17:35:47,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:35:47,592 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 294 [2022-12-13 17:35:47,592 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 146 transitions, 2086 flow. Second operand has 5 states, 5 states have (on average 129.0) internal successors, (645), 5 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:47,592 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:35:47,592 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 294 [2022-12-13 17:35:47,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:35:49,160 INFO L130 PetriNetUnfolder]: 7996/12004 cut-off events. [2022-12-13 17:35:49,160 INFO L131 PetriNetUnfolder]: For 203136/207608 co-relation queries the response was YES. [2022-12-13 17:35:49,183 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78320 conditions, 12004 events. 7996/12004 cut-off events. For 203136/207608 co-relation queries the response was YES. Maximal size of possible extension queue 784. Compared 78973 event pairs, 541 based on Foata normal form. 2829/14440 useless extension candidates. Maximal degree in co-relation 78293. Up to 5358 conditions per place. [2022-12-13 17:35:49,214 INFO L137 encePairwiseOnDemand]: 287/294 looper letters, 402 selfloop transitions, 19 changer transitions 36/477 dead transitions. [2022-12-13 17:35:49,214 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 477 transitions, 8337 flow [2022-12-13 17:35:49,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 17:35:49,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 17:35:49,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 973 transitions. [2022-12-13 17:35:49,216 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47278911564625853 [2022-12-13 17:35:49,216 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 973 transitions. [2022-12-13 17:35:49,216 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 973 transitions. [2022-12-13 17:35:49,216 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:35:49,216 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 973 transitions. [2022-12-13 17:35:49,217 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 139.0) internal successors, (973), 7 states have internal predecessors, (973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:49,219 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 294.0) internal successors, (2352), 8 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:49,219 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 294.0) internal successors, (2352), 8 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:49,219 INFO L175 Difference]: Start difference. First operand has 85 places, 146 transitions, 2086 flow. Second operand 7 states and 973 transitions. [2022-12-13 17:35:49,219 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 477 transitions, 8337 flow [2022-12-13 17:35:49,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 477 transitions, 8308 flow, removed 12 selfloop flow, removed 1 redundant places. [2022-12-13 17:35:49,348 INFO L231 Difference]: Finished difference. Result has 93 places, 142 transitions, 2020 flow [2022-12-13 17:35:49,348 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=1842, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2020, PETRI_PLACES=93, PETRI_TRANSITIONS=142} [2022-12-13 17:35:49,348 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, 43 predicate places. [2022-12-13 17:35:49,348 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 142 transitions, 2020 flow [2022-12-13 17:35:49,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 129.0) internal successors, (645), 5 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:49,348 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:35:49,348 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 17:35:49,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 17:35:49,349 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:35:49,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:35:49,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1310843127, now seen corresponding path program 1 times [2022-12-13 17:35:49,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:35:49,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590792917] [2022-12-13 17:35:49,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:35:49,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:35:49,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:35:49,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:35:49,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:35:49,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590792917] [2022-12-13 17:35:49,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590792917] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:35:49,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:35:49,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:35:49,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345251450] [2022-12-13 17:35:49,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:35:49,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:35:49,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:35:49,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:35:49,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:35:49,775 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 294 [2022-12-13 17:35:49,776 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 142 transitions, 2020 flow. Second operand has 4 states, 4 states have (on average 125.5) internal successors, (502), 4 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:49,776 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:35:49,776 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 294 [2022-12-13 17:35:49,776 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:35:51,960 INFO L130 PetriNetUnfolder]: 12707/19047 cut-off events. [2022-12-13 17:35:51,960 INFO L131 PetriNetUnfolder]: For 205888/206818 co-relation queries the response was YES. [2022-12-13 17:35:52,007 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124152 conditions, 19047 events. 12707/19047 cut-off events. For 205888/206818 co-relation queries the response was YES. Maximal size of possible extension queue 939. Compared 123857 event pairs, 2253 based on Foata normal form. 823/19849 useless extension candidates. Maximal degree in co-relation 124122. Up to 10017 conditions per place. [2022-12-13 17:35:52,034 INFO L137 encePairwiseOnDemand]: 288/294 looper letters, 118 selfloop transitions, 13 changer transitions 90/224 dead transitions. [2022-12-13 17:35:52,034 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 224 transitions, 3465 flow [2022-12-13 17:35:52,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:35:52,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 17:35:52,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 541 transitions. [2022-12-13 17:35:52,036 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46003401360544216 [2022-12-13 17:35:52,036 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 541 transitions. [2022-12-13 17:35:52,036 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 541 transitions. [2022-12-13 17:35:52,036 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:35:52,036 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 541 transitions. [2022-12-13 17:35:52,037 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 135.25) internal successors, (541), 4 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:52,038 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 294.0) internal successors, (1470), 5 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:52,038 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 294.0) internal successors, (1470), 5 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:52,038 INFO L175 Difference]: Start difference. First operand has 93 places, 142 transitions, 2020 flow. Second operand 4 states and 541 transitions. [2022-12-13 17:35:52,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 224 transitions, 3465 flow [2022-12-13 17:35:53,431 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 224 transitions, 3365 flow, removed 34 selfloop flow, removed 3 redundant places. [2022-12-13 17:35:53,433 INFO L231 Difference]: Finished difference. Result has 94 places, 100 transitions, 1359 flow [2022-12-13 17:35:53,433 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=1970, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1359, PETRI_PLACES=94, PETRI_TRANSITIONS=100} [2022-12-13 17:35:53,433 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, 44 predicate places. [2022-12-13 17:35:53,434 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 100 transitions, 1359 flow [2022-12-13 17:35:53,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 125.5) internal successors, (502), 4 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:53,434 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:35:53,434 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:35:53,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 17:35:53,434 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:35:53,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:35:53,435 INFO L85 PathProgramCache]: Analyzing trace with hash 825914963, now seen corresponding path program 1 times [2022-12-13 17:35:53,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:35:53,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456510314] [2022-12-13 17:35:53,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:35:53,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:35:53,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:35:53,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:35:53,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:35:53,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456510314] [2022-12-13 17:35:53,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456510314] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:35:53,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:35:53,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 17:35:53,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604227111] [2022-12-13 17:35:53,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:35:53,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:35:53,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:35:53,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:35:53,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:35:53,599 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 294 [2022-12-13 17:35:53,600 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 100 transitions, 1359 flow. Second operand has 6 states, 6 states have (on average 128.83333333333334) internal successors, (773), 6 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:53,600 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:35:53,600 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 294 [2022-12-13 17:35:53,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:35:54,649 INFO L130 PetriNetUnfolder]: 3606/5871 cut-off events. [2022-12-13 17:35:54,649 INFO L131 PetriNetUnfolder]: For 88749/89800 co-relation queries the response was YES. [2022-12-13 17:35:54,664 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36269 conditions, 5871 events. 3606/5871 cut-off events. For 88749/89800 co-relation queries the response was YES. Maximal size of possible extension queue 342. Compared 38013 event pairs, 398 based on Foata normal form. 992/6684 useless extension candidates. Maximal degree in co-relation 36238. Up to 2343 conditions per place. [2022-12-13 17:35:54,675 INFO L137 encePairwiseOnDemand]: 287/294 looper letters, 182 selfloop transitions, 18 changer transitions 47/263 dead transitions. [2022-12-13 17:35:54,675 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 263 transitions, 4207 flow [2022-12-13 17:35:54,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 17:35:54,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 17:35:54,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 974 transitions. [2022-12-13 17:35:54,677 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47327502429543244 [2022-12-13 17:35:54,677 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 974 transitions. [2022-12-13 17:35:54,677 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 974 transitions. [2022-12-13 17:35:54,678 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:35:54,678 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 974 transitions. [2022-12-13 17:35:54,679 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 139.14285714285714) internal successors, (974), 7 states have internal predecessors, (974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:54,680 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 294.0) internal successors, (2352), 8 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:54,680 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 294.0) internal successors, (2352), 8 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:54,680 INFO L175 Difference]: Start difference. First operand has 94 places, 100 transitions, 1359 flow. Second operand 7 states and 974 transitions. [2022-12-13 17:35:54,680 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 263 transitions, 4207 flow [2022-12-13 17:35:54,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 263 transitions, 3830 flow, removed 115 selfloop flow, removed 9 redundant places. [2022-12-13 17:35:54,781 INFO L231 Difference]: Finished difference. Result has 89 places, 94 transitions, 1120 flow [2022-12-13 17:35:54,781 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=1022, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1120, PETRI_PLACES=89, PETRI_TRANSITIONS=94} [2022-12-13 17:35:54,781 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, 39 predicate places. [2022-12-13 17:35:54,781 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 94 transitions, 1120 flow [2022-12-13 17:35:54,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 128.83333333333334) internal successors, (773), 6 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:54,782 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:35:54,782 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:35:54,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-13 17:35:54,782 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:35:54,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:35:54,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1653870896, now seen corresponding path program 1 times [2022-12-13 17:35:54,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:35:54,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453360450] [2022-12-13 17:35:54,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:35:54,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:35:54,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:35:54,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:35:54,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:35:54,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453360450] [2022-12-13 17:35:54,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453360450] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:35:54,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:35:54,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 17:35:54,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837498608] [2022-12-13 17:35:54,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:35:54,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 17:35:54,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:35:54,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 17:35:54,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-13 17:35:54,910 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 294 [2022-12-13 17:35:54,910 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 94 transitions, 1120 flow. Second operand has 7 states, 7 states have (on average 128.71428571428572) internal successors, (901), 7 states have internal predecessors, (901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:54,910 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:35:54,910 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 294 [2022-12-13 17:35:54,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:35:55,703 INFO L130 PetriNetUnfolder]: 3402/5576 cut-off events. [2022-12-13 17:35:55,703 INFO L131 PetriNetUnfolder]: For 52499/53243 co-relation queries the response was YES. [2022-12-13 17:35:55,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34578 conditions, 5576 events. 3402/5576 cut-off events. For 52499/53243 co-relation queries the response was YES. Maximal size of possible extension queue 338. Compared 36516 event pairs, 374 based on Foata normal form. 431/5834 useless extension candidates. Maximal degree in co-relation 34548. Up to 2117 conditions per place. [2022-12-13 17:35:55,722 INFO L137 encePairwiseOnDemand]: 287/294 looper letters, 159 selfloop transitions, 23 changer transitions 54/251 dead transitions. [2022-12-13 17:35:55,722 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 251 transitions, 3710 flow [2022-12-13 17:35:55,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 17:35:55,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 17:35:55,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1227 transitions. [2022-12-13 17:35:55,725 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.463718820861678 [2022-12-13 17:35:55,725 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1227 transitions. [2022-12-13 17:35:55,725 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1227 transitions. [2022-12-13 17:35:55,725 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:35:55,725 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1227 transitions. [2022-12-13 17:35:55,726 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 136.33333333333334) internal successors, (1227), 9 states have internal predecessors, (1227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:55,728 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 294.0) internal successors, (2940), 10 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:55,728 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 294.0) internal successors, (2940), 10 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:55,728 INFO L175 Difference]: Start difference. First operand has 89 places, 94 transitions, 1120 flow. Second operand 9 states and 1227 transitions. [2022-12-13 17:35:55,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 251 transitions, 3710 flow [2022-12-13 17:35:56,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 251 transitions, 3496 flow, removed 89 selfloop flow, removed 3 redundant places. [2022-12-13 17:35:56,002 INFO L231 Difference]: Finished difference. Result has 97 places, 88 transitions, 992 flow [2022-12-13 17:35:56,002 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=1005, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=992, PETRI_PLACES=97, PETRI_TRANSITIONS=88} [2022-12-13 17:35:56,002 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, 47 predicate places. [2022-12-13 17:35:56,002 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 88 transitions, 992 flow [2022-12-13 17:35:56,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 128.71428571428572) internal successors, (901), 7 states have internal predecessors, (901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:56,003 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:35:56,003 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:35:56,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-13 17:35:56,003 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:35:56,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:35:56,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1836434100, now seen corresponding path program 1 times [2022-12-13 17:35:56,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:35:56,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12782113] [2022-12-13 17:35:56,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:35:56,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:35:56,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:35:56,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:35:56,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:35:56,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12782113] [2022-12-13 17:35:56,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12782113] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:35:56,398 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:35:56,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 17:35:56,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928933726] [2022-12-13 17:35:56,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:35:56,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 17:35:56,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:35:56,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 17:35:56,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:35:56,433 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 294 [2022-12-13 17:35:56,433 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 88 transitions, 992 flow. Second operand has 5 states, 5 states have (on average 124.0) internal successors, (620), 5 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:56,433 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:35:56,433 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 294 [2022-12-13 17:35:56,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:35:56,967 INFO L130 PetriNetUnfolder]: 2155/3452 cut-off events. [2022-12-13 17:35:56,968 INFO L131 PetriNetUnfolder]: For 24582/24710 co-relation queries the response was YES. [2022-12-13 17:35:56,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20906 conditions, 3452 events. 2155/3452 cut-off events. For 24582/24710 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 18821 event pairs, 134 based on Foata normal form. 103/3545 useless extension candidates. Maximal degree in co-relation 20873. Up to 1443 conditions per place. [2022-12-13 17:35:56,981 INFO L137 encePairwiseOnDemand]: 284/294 looper letters, 94 selfloop transitions, 16 changer transitions 97/210 dead transitions. [2022-12-13 17:35:56,981 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 210 transitions, 2731 flow [2022-12-13 17:35:56,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 17:35:56,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 17:35:56,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 790 transitions. [2022-12-13 17:35:56,984 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4478458049886621 [2022-12-13 17:35:56,984 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 790 transitions. [2022-12-13 17:35:56,984 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 790 transitions. [2022-12-13 17:35:56,984 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:35:56,984 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 790 transitions. [2022-12-13 17:35:56,985 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 131.66666666666666) internal successors, (790), 6 states have internal predecessors, (790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:56,986 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 294.0) internal successors, (2058), 7 states have internal predecessors, (2058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:56,986 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 294.0) internal successors, (2058), 7 states have internal predecessors, (2058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:56,986 INFO L175 Difference]: Start difference. First operand has 97 places, 88 transitions, 992 flow. Second operand 6 states and 790 transitions. [2022-12-13 17:35:56,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 210 transitions, 2731 flow [2022-12-13 17:35:57,040 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 210 transitions, 2459 flow, removed 52 selfloop flow, removed 11 redundant places. [2022-12-13 17:35:57,041 INFO L231 Difference]: Finished difference. Result has 92 places, 77 transitions, 836 flow [2022-12-13 17:35:57,041 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=890, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=836, PETRI_PLACES=92, PETRI_TRANSITIONS=77} [2022-12-13 17:35:57,041 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, 42 predicate places. [2022-12-13 17:35:57,042 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 77 transitions, 836 flow [2022-12-13 17:35:57,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 124.0) internal successors, (620), 5 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:57,042 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:35:57,042 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:35:57,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-13 17:35:57,042 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:35:57,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:35:57,042 INFO L85 PathProgramCache]: Analyzing trace with hash 2050680884, now seen corresponding path program 2 times [2022-12-13 17:35:57,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:35:57,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284476933] [2022-12-13 17:35:57,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:35:57,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:35:57,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:35:57,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:35:57,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:35:57,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284476933] [2022-12-13 17:35:57,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284476933] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:35:57,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:35:57,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 17:35:57,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286857705] [2022-12-13 17:35:57,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:35:57,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 17:35:57,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:35:57,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 17:35:57,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:35:57,522 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 294 [2022-12-13 17:35:57,522 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 77 transitions, 836 flow. Second operand has 5 states, 5 states have (on average 124.0) internal successors, (620), 5 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:57,523 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:35:57,523 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 294 [2022-12-13 17:35:57,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:35:57,912 INFO L130 PetriNetUnfolder]: 1314/2158 cut-off events. [2022-12-13 17:35:57,913 INFO L131 PetriNetUnfolder]: For 13837/13918 co-relation queries the response was YES. [2022-12-13 17:35:57,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12104 conditions, 2158 events. 1314/2158 cut-off events. For 13837/13918 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 10934 event pairs, 151 based on Foata normal form. 38/2179 useless extension candidates. Maximal degree in co-relation 12074. Up to 1249 conditions per place. [2022-12-13 17:35:57,919 INFO L137 encePairwiseOnDemand]: 284/294 looper letters, 55 selfloop transitions, 7 changer transitions 93/157 dead transitions. [2022-12-13 17:35:57,919 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 157 transitions, 1907 flow [2022-12-13 17:35:57,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 17:35:57,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 17:35:57,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 785 transitions. [2022-12-13 17:35:57,921 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44501133786848074 [2022-12-13 17:35:57,921 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 785 transitions. [2022-12-13 17:35:57,921 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 785 transitions. [2022-12-13 17:35:57,922 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:35:57,922 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 785 transitions. [2022-12-13 17:35:57,923 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 130.83333333333334) internal successors, (785), 6 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:57,924 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 294.0) internal successors, (2058), 7 states have internal predecessors, (2058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:57,924 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 294.0) internal successors, (2058), 7 states have internal predecessors, (2058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:57,924 INFO L175 Difference]: Start difference. First operand has 92 places, 77 transitions, 836 flow. Second operand 6 states and 785 transitions. [2022-12-13 17:35:57,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 157 transitions, 1907 flow [2022-12-13 17:35:57,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 157 transitions, 1863 flow, removed 18 selfloop flow, removed 4 redundant places. [2022-12-13 17:35:57,954 INFO L231 Difference]: Finished difference. Result has 91 places, 52 transitions, 510 flow [2022-12-13 17:35:57,955 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=811, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=510, PETRI_PLACES=91, PETRI_TRANSITIONS=52} [2022-12-13 17:35:57,955 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, 41 predicate places. [2022-12-13 17:35:57,955 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 52 transitions, 510 flow [2022-12-13 17:35:57,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 124.0) internal successors, (620), 5 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:57,955 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:35:57,955 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:35:57,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-13 17:35:57,955 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:35:57,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:35:57,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1709387078, now seen corresponding path program 3 times [2022-12-13 17:35:57,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:35:57,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706533189] [2022-12-13 17:35:57,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:35:57,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:35:57,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:35:58,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:35:58,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:35:58,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706533189] [2022-12-13 17:35:58,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706533189] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:35:58,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:35:58,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 17:35:58,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121452466] [2022-12-13 17:35:58,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:35:58,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 17:35:58,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:35:58,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 17:35:58,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-12-13 17:35:58,871 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 294 [2022-12-13 17:35:58,872 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 52 transitions, 510 flow. Second operand has 9 states, 9 states have (on average 125.55555555555556) internal successors, (1130), 9 states have internal predecessors, (1130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:58,872 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:35:58,872 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 294 [2022-12-13 17:35:58,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:35:59,149 INFO L130 PetriNetUnfolder]: 420/755 cut-off events. [2022-12-13 17:35:59,149 INFO L131 PetriNetUnfolder]: For 5026/5033 co-relation queries the response was YES. [2022-12-13 17:35:59,151 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4168 conditions, 755 events. 420/755 cut-off events. For 5026/5033 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 3351 event pairs, 51 based on Foata normal form. 1/751 useless extension candidates. Maximal degree in co-relation 4139. Up to 375 conditions per place. [2022-12-13 17:35:59,152 INFO L137 encePairwiseOnDemand]: 288/294 looper letters, 46 selfloop transitions, 5 changer transitions 41/95 dead transitions. [2022-12-13 17:35:59,152 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 95 transitions, 1003 flow [2022-12-13 17:35:59,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 17:35:59,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 17:35:59,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 788 transitions. [2022-12-13 17:35:59,153 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4467120181405896 [2022-12-13 17:35:59,154 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 788 transitions. [2022-12-13 17:35:59,154 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 788 transitions. [2022-12-13 17:35:59,154 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:35:59,154 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 788 transitions. [2022-12-13 17:35:59,155 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 131.33333333333334) internal successors, (788), 6 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:59,157 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 294.0) internal successors, (2058), 7 states have internal predecessors, (2058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:59,157 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 294.0) internal successors, (2058), 7 states have internal predecessors, (2058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:59,157 INFO L175 Difference]: Start difference. First operand has 91 places, 52 transitions, 510 flow. Second operand 6 states and 788 transitions. [2022-12-13 17:35:59,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 95 transitions, 1003 flow [2022-12-13 17:35:59,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 95 transitions, 838 flow, removed 42 selfloop flow, removed 20 redundant places. [2022-12-13 17:35:59,170 INFO L231 Difference]: Finished difference. Result has 73 places, 49 transitions, 362 flow [2022-12-13 17:35:59,170 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=389, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=362, PETRI_PLACES=73, PETRI_TRANSITIONS=49} [2022-12-13 17:35:59,170 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, 23 predicate places. [2022-12-13 17:35:59,170 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 49 transitions, 362 flow [2022-12-13 17:35:59,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 125.55555555555556) internal successors, (1130), 9 states have internal predecessors, (1130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:35:59,170 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:35:59,170 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:35:59,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-13 17:35:59,170 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:35:59,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:35:59,171 INFO L85 PathProgramCache]: Analyzing trace with hash -803932042, now seen corresponding path program 4 times [2022-12-13 17:35:59,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:35:59,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494105975] [2022-12-13 17:35:59,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:35:59,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:35:59,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:35:59,202 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 17:35:59,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:35:59,261 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 17:35:59,261 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 17:35:59,262 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (15 of 16 remaining) [2022-12-13 17:35:59,264 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONMEMORY_LEAK (14 of 16 remaining) [2022-12-13 17:35:59,264 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 16 remaining) [2022-12-13 17:35:59,264 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 16 remaining) [2022-12-13 17:35:59,265 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 16 remaining) [2022-12-13 17:35:59,265 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 16 remaining) [2022-12-13 17:35:59,265 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 16 remaining) [2022-12-13 17:35:59,265 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 16 remaining) [2022-12-13 17:35:59,265 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 16 remaining) [2022-12-13 17:35:59,265 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 16 remaining) [2022-12-13 17:35:59,265 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK (5 of 16 remaining) [2022-12-13 17:35:59,265 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 16 remaining) [2022-12-13 17:35:59,266 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 16 remaining) [2022-12-13 17:35:59,266 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 16 remaining) [2022-12-13 17:35:59,266 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 16 remaining) [2022-12-13 17:35:59,266 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 16 remaining) [2022-12-13 17:35:59,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-13 17:35:59,266 INFO L445 BasicCegarLoop]: Path program histogram: [4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:35:59,272 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 17:35:59,272 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 17:35:59,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 05:35:59 BasicIcfg [2022-12-13 17:35:59,332 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 17:35:59,332 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 17:35:59,332 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 17:35:59,333 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 17:35:59,333 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:35:17" (3/4) ... [2022-12-13 17:35:59,335 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 17:35:59,335 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 17:35:59,336 INFO L158 Benchmark]: Toolchain (without parser) took 42968.13ms. Allocated memory was 115.3MB in the beginning and 1.9GB in the end (delta: 1.8GB). Free memory was 80.0MB in the beginning and 717.8MB in the end (delta: -637.7MB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2022-12-13 17:35:59,336 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 115.3MB. Free memory is still 57.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 17:35:59,336 INFO L158 Benchmark]: CACSL2BoogieTranslator took 444.22ms. Allocated memory is still 115.3MB. Free memory was 80.0MB in the beginning and 52.8MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-12-13 17:35:59,337 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.77ms. Allocated memory is still 115.3MB. Free memory was 52.8MB in the beginning and 49.7MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 17:35:59,337 INFO L158 Benchmark]: Boogie Preprocessor took 29.61ms. Allocated memory is still 115.3MB. Free memory was 49.7MB in the beginning and 47.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 17:35:59,337 INFO L158 Benchmark]: RCFGBuilder took 596.52ms. Allocated memory was 115.3MB in the beginning and 138.4MB in the end (delta: 23.1MB). Free memory was 47.7MB in the beginning and 81.3MB in the end (delta: -33.6MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. [2022-12-13 17:35:59,337 INFO L158 Benchmark]: TraceAbstraction took 41842.99ms. Allocated memory was 138.4MB in the beginning and 1.9GB in the end (delta: 1.7GB). Free memory was 81.3MB in the beginning and 718.8MB in the end (delta: -637.6MB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2022-12-13 17:35:59,338 INFO L158 Benchmark]: Witness Printer took 3.13ms. Allocated memory is still 1.9GB. Free memory was 718.8MB in the beginning and 717.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 17:35:59,339 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 115.3MB. Free memory is still 57.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 444.22ms. Allocated memory is still 115.3MB. Free memory was 80.0MB in the beginning and 52.8MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.77ms. Allocated memory is still 115.3MB. Free memory was 52.8MB in the beginning and 49.7MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.61ms. Allocated memory is still 115.3MB. Free memory was 49.7MB in the beginning and 47.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 596.52ms. Allocated memory was 115.3MB in the beginning and 138.4MB in the end (delta: 23.1MB). Free memory was 47.7MB in the beginning and 81.3MB in the end (delta: -33.6MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. * TraceAbstraction took 41842.99ms. Allocated memory was 138.4MB in the beginning and 1.9GB in the end (delta: 1.7GB). Free memory was 81.3MB in the beginning and 718.8MB in the end (delta: -637.6MB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. * Witness Printer took 3.13ms. Allocated memory is still 1.9GB. Free memory was 718.8MB in the beginning and 717.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.6s, 153 PlacesBefore, 50 PlacesAfterwards, 142 TransitionsBefore, 37 TransitionsAfterwards, 3434 CoEnabledTransitionPairs, 7 FixpointIterations, 59 TrivialSequentialCompositions, 79 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 148 TotalNumberOfCompositions, 9246 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3601, independent: 3378, independent conditional: 0, independent unconditional: 3378, dependent: 223, dependent conditional: 0, dependent unconditional: 223, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1795, independent: 1739, independent conditional: 0, independent unconditional: 1739, dependent: 56, dependent conditional: 0, dependent unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3601, independent: 1639, independent conditional: 0, independent unconditional: 1639, dependent: 167, dependent conditional: 0, dependent unconditional: 167, unknown: 1795, unknown conditional: 0, unknown unconditional: 1795] , Statistics on independence cache: Total cache size (in pairs): 146, Positive cache size: 127, Positive conditional cache size: 0, Positive unconditional cache size: 127, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p2_EAX = 0; [L714] 0 int __unbuffered_p3_EAX = 0; [L716] 0 int a = 0; [L717] 0 _Bool main$tmp_guard0; [L718] 0 _Bool main$tmp_guard1; [L720] 0 int x = 0; [L722] 0 int y = 0; [L723] 0 _Bool y$flush_delayed; [L724] 0 int y$mem_tmp; [L725] 0 _Bool y$r_buff0_thd0; [L726] 0 _Bool y$r_buff0_thd1; [L727] 0 _Bool y$r_buff0_thd2; [L728] 0 _Bool y$r_buff0_thd3; [L729] 0 _Bool y$r_buff0_thd4; [L730] 0 _Bool y$r_buff1_thd0; [L731] 0 _Bool y$r_buff1_thd1; [L732] 0 _Bool y$r_buff1_thd2; [L733] 0 _Bool y$r_buff1_thd3; [L734] 0 _Bool y$r_buff1_thd4; [L735] 0 _Bool y$read_delayed; [L736] 0 int *y$read_delayed_var; [L737] 0 int y$w_buff0; [L738] 0 _Bool y$w_buff0_used; [L739] 0 int y$w_buff1; [L740] 0 _Bool y$w_buff1_used; [L742] 0 int z = 0; [L743] 0 _Bool weak$$choice0; [L744] 0 _Bool weak$$choice2; [L841] 0 pthread_t t1433; [L842] FCALL, FORK 0 pthread_create(&t1433, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1433, ((void *)0), P0, ((void *)0))=-1, t1433={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L843] 0 pthread_t t1434; [L844] FCALL, FORK 0 pthread_create(&t1434, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1434, ((void *)0), P1, ((void *)0))=0, t1433={5:0}, t1434={6:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L845] 0 pthread_t t1435; [L846] FCALL, FORK 0 pthread_create(&t1435, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1435, ((void *)0), P2, ((void *)0))=1, t1433={5:0}, t1434={6:0}, t1435={7:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L847] 0 pthread_t t1436; [L848] FCALL, FORK 0 pthread_create(&t1436, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1436, ((void *)0), P3, ((void *)0))=2, t1433={5:0}, t1434={6:0}, t1435={7:0}, t1436={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L783] 3 y$w_buff1 = y$w_buff0 [L784] 3 y$w_buff0 = 2 [L785] 3 y$w_buff1_used = y$w_buff0_used [L786] 3 y$w_buff0_used = (_Bool)1 [L787] CALL 3 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L18] COND FALSE 3 !(!expression) [L787] RET 3 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L788] 3 y$r_buff1_thd0 = y$r_buff0_thd0 [L789] 3 y$r_buff1_thd1 = y$r_buff0_thd1 [L790] 3 y$r_buff1_thd2 = y$r_buff0_thd2 [L791] 3 y$r_buff1_thd3 = y$r_buff0_thd3 [L792] 3 y$r_buff1_thd4 = y$r_buff0_thd4 [L793] 3 y$r_buff0_thd3 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L796] 3 __unbuffered_p2_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L813] 4 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L816] 4 __unbuffered_p3_EAX = a VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L748] 1 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L751] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L756] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L758] 1 return 0; [L763] 2 x = 2 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L819] 4 y = y$w_buff0_used && y$r_buff0_thd4 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y) [L820] 4 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$w_buff0_used [L821] 4 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$w_buff1_used [L822] 4 y$r_buff0_thd4 = y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$r_buff0_thd4 [L823] 4 y$r_buff1_thd4 = y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$r_buff1_thd4 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L766] 2 y = 1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L799] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L800] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L801] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L802] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L803] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L806] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L808] 3 return 0; [L769] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L770] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L771] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L772] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L773] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L826] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L828] 4 return 0; [L776] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L778] 2 return 0; [L850] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L852] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L852] RET 0 assume_abort_if_not(main$tmp_guard0) [L854] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L855] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L856] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L857] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L858] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1433={5:0}, t1434={6:0}, t1435={7:0}, t1436={3:0}, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L861] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L862] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L863] 0 y$flush_delayed = weak$$choice2 [L864] 0 y$mem_tmp = y [L865] 0 y = !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L866] 0 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L867] 0 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L868] 0 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L869] 0 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L870] 0 y$r_buff0_thd0 = weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L871] 0 y$r_buff1_thd0 = weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L872] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p2_EAX == 0 && __unbuffered_p3_EAX == 0) [L873] 0 y = y$flush_delayed ? y$mem_tmp : y [L874] 0 y$flush_delayed = (_Bool)0 [L876] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\old(expression)=0, \old(expression)=1, \result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=1, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 839]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 848]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 846]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 842]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 844]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 181 locations, 16 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 41.7s, OverallIterations: 23, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 28.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1340 SdHoareTripleChecker+Valid, 3.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1145 mSDsluCounter, 407 SdHoareTripleChecker+Invalid, 2.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 312 mSDsCounter, 313 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2967 IncrementalHoareTripleChecker+Invalid, 3280 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 313 mSolverCounterUnsat, 95 mSDtfsCounter, 2967 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 109 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2144occurred in iteration=14, InterpolantAutomatonStates: 117, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 7.0s InterpolantComputationTime, 363 NumberOfCodeBlocks, 363 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 315 ConstructedInterpolants, 0 QuantifiedInterpolants, 4220 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 22 InterpolantComputations, 22 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 17:35:59,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/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_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix053_tso.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/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 9a8131f8693d82039b4018f716a17d0a3e1038ace11c7bb21b12bc911efac3c1 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 17:36:01,055 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 17:36:01,056 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 17:36:01,074 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 17:36:01,074 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 17:36:01,075 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 17:36:01,077 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 17:36:01,078 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 17:36:01,080 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 17:36:01,080 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 17:36:01,081 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 17:36:01,082 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 17:36:01,083 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 17:36:01,084 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 17:36:01,085 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 17:36:01,086 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 17:36:01,086 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 17:36:01,087 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 17:36:01,089 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 17:36:01,090 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 17:36:01,092 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 17:36:01,093 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 17:36:01,094 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 17:36:01,095 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 17:36:01,098 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 17:36:01,098 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 17:36:01,099 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 17:36:01,100 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 17:36:01,100 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 17:36:01,101 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 17:36:01,101 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 17:36:01,102 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 17:36:01,103 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 17:36:01,103 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 17:36:01,107 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 17:36:01,107 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 17:36:01,108 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 17:36:01,108 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 17:36:01,108 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 17:36:01,109 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 17:36:01,110 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 17:36:01,110 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-12-13 17:36:01,133 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 17:36:01,133 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 17:36:01,134 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 17:36:01,134 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 17:36:01,135 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 17:36:01,135 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 17:36:01,135 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 17:36:01,136 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 17:36:01,136 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 17:36:01,136 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 17:36:01,136 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 17:36:01,136 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 17:36:01,136 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 17:36:01,137 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 17:36:01,137 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 17:36:01,137 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 17:36:01,137 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 17:36:01,137 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 17:36:01,137 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 17:36:01,137 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 17:36:01,138 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 17:36:01,138 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 17:36:01,138 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 17:36:01,138 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 17:36:01,138 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 17:36:01,138 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 17:36:01,139 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 17:36:01,139 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:36:01,139 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 17:36:01,139 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 17:36:01,139 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 17:36:01,139 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 17:36:01,140 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 17:36:01,140 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 17:36:01,140 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 17:36:01,140 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 17:36:01,140 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 17:36:01,140 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_2ede7d23-0210-46eb-9b7a-420e485f177e/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_2ede7d23-0210-46eb-9b7a-420e485f177e/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 -> 9a8131f8693d82039b4018f716a17d0a3e1038ace11c7bb21b12bc911efac3c1 [2022-12-13 17:36:01,379 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 17:36:01,393 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 17:36:01,395 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 17:36:01,395 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 17:36:01,396 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 17:36:01,397 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-wmm/mix053_tso.oepc.i [2022-12-13 17:36:03,989 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 17:36:04,160 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 17:36:04,161 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/sv-benchmarks/c/pthread-wmm/mix053_tso.oepc.i [2022-12-13 17:36:04,171 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/data/4282bb367/fc4c04df353143c89782a70f37d82de8/FLAGda5265195 [2022-12-13 17:36:04,182 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/data/4282bb367/fc4c04df353143c89782a70f37d82de8 [2022-12-13 17:36:04,184 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 17:36:04,185 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 17:36:04,186 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 17:36:04,186 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 17:36:04,189 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 17:36:04,189 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:36:04" (1/1) ... [2022-12-13 17:36:04,190 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c9f6aed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:36:04, skipping insertion in model container [2022-12-13 17:36:04,190 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:36:04" (1/1) ... [2022-12-13 17:36:04,195 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 17:36:04,222 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 17:36:04,375 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_2ede7d23-0210-46eb-9b7a-420e485f177e/sv-benchmarks/c/pthread-wmm/mix053_tso.oepc.i[949,962] [2022-12-13 17:36:04,483 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:36:04,484 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:36:04,484 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:36:04,484 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:36:04,484 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:36:04,484 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:36:04,485 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:36:04,485 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:36:04,486 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:36:04,486 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:36:04,486 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:36:04,486 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:36:04,486 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:36:04,488 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:36:04,489 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:36:04,489 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:36:04,490 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:36:04,491 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:36:04,491 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:36:04,492 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:36:04,492 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:36:04,493 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:36:04,494 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:36:04,494 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:36:04,495 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:36:04,495 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:36:04,495 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:36:04,495 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:36:04,495 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:36:04,497 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:36:04,497 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:36:04,498 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:36:04,503 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:36:04,504 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:36:04,504 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:36:04,506 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:36:04,506 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:36:04,511 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:36:04,512 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:36:04,522 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 17:36:04,531 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_2ede7d23-0210-46eb-9b7a-420e485f177e/sv-benchmarks/c/pthread-wmm/mix053_tso.oepc.i[949,962] [2022-12-13 17:36:04,545 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:36:04,546 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:36:04,546 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:36:04,546 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:36:04,546 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:36:04,546 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:36:04,546 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:36:04,547 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:36:04,547 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:36:04,547 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:36:04,547 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:36:04,548 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:36:04,548 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:36:04,549 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:36:04,549 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:36:04,549 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:36:04,550 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:36:04,551 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:36:04,551 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:36:04,551 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:36:04,551 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:36:04,552 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:36:04,552 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:36:04,553 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:36:04,553 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:36:04,553 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:36:04,554 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:36:04,554 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:36:04,554 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:36:04,555 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:36:04,555 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:36:04,555 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:36:04,558 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:36:04,558 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:36:04,559 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:36:04,560 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:36:04,560 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:36:04,563 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:36:04,564 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:36:04,600 INFO L208 MainTranslator]: Completed translation [2022-12-13 17:36:04,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:36:04 WrapperNode [2022-12-13 17:36:04,600 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 17:36:04,601 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 17:36:04,601 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 17:36:04,601 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 17:36:04,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:36:04" (1/1) ... [2022-12-13 17:36:04,619 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:36:04" (1/1) ... [2022-12-13 17:36:04,636 INFO L138 Inliner]: procedures = 180, calls = 67, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 159 [2022-12-13 17:36:04,636 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 17:36:04,637 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 17:36:04,637 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 17:36:04,637 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 17:36:04,643 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:36:04" (1/1) ... [2022-12-13 17:36:04,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:36:04" (1/1) ... [2022-12-13 17:36:04,646 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:36:04" (1/1) ... [2022-12-13 17:36:04,646 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:36:04" (1/1) ... [2022-12-13 17:36:04,651 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:36:04" (1/1) ... [2022-12-13 17:36:04,653 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:36:04" (1/1) ... [2022-12-13 17:36:04,654 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:36:04" (1/1) ... [2022-12-13 17:36:04,655 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:36:04" (1/1) ... [2022-12-13 17:36:04,658 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 17:36:04,658 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 17:36:04,658 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 17:36:04,658 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 17:36:04,659 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:36:04" (1/1) ... [2022-12-13 17:36:04,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:36:04,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:36:04,681 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 17:36:04,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 17:36:04,713 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 17:36:04,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 17:36:04,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 17:36:04,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 17:36:04,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-13 17:36:04,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 17:36:04,714 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 17:36:04,714 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 17:36:04,714 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 17:36:04,714 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 17:36:04,715 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-13 17:36:04,715 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-13 17:36:04,715 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-13 17:36:04,715 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-13 17:36:04,715 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 17:36:04,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 17:36:04,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 17:36:04,716 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 17:36:04,841 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 17:36:04,843 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 17:36:05,181 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 17:36:05,274 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 17:36:05,275 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 17:36:05,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:36:05 BoogieIcfgContainer [2022-12-13 17:36:05,277 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 17:36:05,279 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 17:36:05,280 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 17:36:05,282 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 17:36:05,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 05:36:04" (1/3) ... [2022-12-13 17:36:05,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54e9cda3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:36:05, skipping insertion in model container [2022-12-13 17:36:05,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:36:04" (2/3) ... [2022-12-13 17:36:05,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54e9cda3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:36:05, skipping insertion in model container [2022-12-13 17:36:05,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:36:05" (3/3) ... [2022-12-13 17:36:05,285 INFO L112 eAbstractionObserver]: Analyzing ICFG mix053_tso.oepc.i [2022-12-13 17:36:05,299 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 17:36:05,299 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2022-12-13 17:36:05,299 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 17:36:05,350 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 17:36:05,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 158 places, 147 transitions, 314 flow [2022-12-13 17:36:05,426 INFO L130 PetriNetUnfolder]: 2/143 cut-off events. [2022-12-13 17:36:05,426 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 17:36:05,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 143 events. 2/143 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 99 event pairs, 0 based on Foata normal form. 0/130 useless extension candidates. Maximal degree in co-relation 99. Up to 2 conditions per place. [2022-12-13 17:36:05,431 INFO L82 GeneralOperation]: Start removeDead. Operand has 158 places, 147 transitions, 314 flow [2022-12-13 17:36:05,434 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 154 places, 143 transitions, 298 flow [2022-12-13 17:36:05,437 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 17:36:05,444 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 154 places, 143 transitions, 298 flow [2022-12-13 17:36:05,446 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 154 places, 143 transitions, 298 flow [2022-12-13 17:36:05,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 154 places, 143 transitions, 298 flow [2022-12-13 17:36:05,468 INFO L130 PetriNetUnfolder]: 2/143 cut-off events. [2022-12-13 17:36:05,468 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 17:36:05,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 143 events. 2/143 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 99 event pairs, 0 based on Foata normal form. 0/130 useless extension candidates. Maximal degree in co-relation 99. Up to 2 conditions per place. [2022-12-13 17:36:05,470 INFO L119 LiptonReduction]: Number of co-enabled transitions 3434 [2022-12-13 17:36:12,829 INFO L134 LiptonReduction]: Checked pairs total: 9608 [2022-12-13 17:36:12,829 INFO L136 LiptonReduction]: Total number of compositions: 140 [2022-12-13 17:36:12,841 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 17:36:12,847 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;@103b93d6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 17:36:12,847 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-12-13 17:36:12,849 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 17:36:12,849 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 17:36:12,849 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:36:12,849 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 17:36:12,850 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:36:12,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:36:12,854 INFO L85 PathProgramCache]: Analyzing trace with hash 610, now seen corresponding path program 1 times [2022-12-13 17:36:12,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 17:36:12,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [964199311] [2022-12-13 17:36:12,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:36:12,863 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 17:36:12,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 17:36:12,864 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 17:36:12,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-13 17:36:12,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:36:12,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 17:36:12,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:36:12,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:36:12,929 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:36:12,930 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 17:36:12,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [964199311] [2022-12-13 17:36:12,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [964199311] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:36:12,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:36:12,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 17:36:12,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393366847] [2022-12-13 17:36:12,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:36:12,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 17:36:12,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 17:36:12,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 17:36:12,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 17:36:12,957 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 287 [2022-12-13 17:36:12,959 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 40 transitions, 92 flow. Second operand has 2 states, 2 states have (on average 133.5) internal successors, (267), 2 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:36:12,959 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:36:12,959 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 287 [2022-12-13 17:36:12,960 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:36:13,998 INFO L130 PetriNetUnfolder]: 5761/8001 cut-off events. [2022-12-13 17:36:13,999 INFO L131 PetriNetUnfolder]: For 60/60 co-relation queries the response was YES. [2022-12-13 17:36:14,015 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15991 conditions, 8001 events. 5761/8001 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 407. Compared 42330 event pairs, 5761 based on Foata normal form. 240/7052 useless extension candidates. Maximal degree in co-relation 15979. Up to 7833 conditions per place. [2022-12-13 17:36:14,049 INFO L137 encePairwiseOnDemand]: 278/287 looper letters, 27 selfloop transitions, 0 changer transitions 0/31 dead transitions. [2022-12-13 17:36:14,049 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 31 transitions, 128 flow [2022-12-13 17:36:14,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 17:36:14,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 17:36:14,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 302 transitions. [2022-12-13 17:36:14,072 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5261324041811847 [2022-12-13 17:36:14,072 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 302 transitions. [2022-12-13 17:36:14,073 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 302 transitions. [2022-12-13 17:36:14,074 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:36:14,077 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 302 transitions. [2022-12-13 17:36:14,080 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 151.0) internal successors, (302), 2 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:36:14,083 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 287.0) internal successors, (861), 3 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:36:14,084 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 287.0) internal successors, (861), 3 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:36:14,085 INFO L175 Difference]: Start difference. First operand has 52 places, 40 transitions, 92 flow. Second operand 2 states and 302 transitions. [2022-12-13 17:36:14,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 31 transitions, 128 flow [2022-12-13 17:36:14,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 31 transitions, 124 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 17:36:14,091 INFO L231 Difference]: Finished difference. Result has 41 places, 31 transitions, 70 flow [2022-12-13 17:36:14,093 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=287, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=70, PETRI_PLACES=41, PETRI_TRANSITIONS=31} [2022-12-13 17:36:14,096 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -11 predicate places. [2022-12-13 17:36:14,097 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 31 transitions, 70 flow [2022-12-13 17:36:14,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 133.5) internal successors, (267), 2 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:36:14,097 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:36:14,097 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:36:14,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-13 17:36:14,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 17:36:14,299 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P2Err0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:36:14,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:36:14,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1528771172, now seen corresponding path program 1 times [2022-12-13 17:36:14,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 17:36:14,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1649955404] [2022-12-13 17:36:14,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:36:14,301 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 17:36:14,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 17:36:14,302 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 17:36:14,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-13 17:36:14,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:36:14,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 17:36:14,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:36:14,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:36:14,399 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:36:14,399 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 17:36:14,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1649955404] [2022-12-13 17:36:14,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1649955404] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:36:14,400 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:36:14,400 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 17:36:14,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052774000] [2022-12-13 17:36:14,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:36:14,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:36:14,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 17:36:14,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:36:14,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:36:14,405 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 287 [2022-12-13 17:36:14,406 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 31 transitions, 70 flow. Second operand has 3 states, 3 states have (on average 134.33333333333334) internal successors, (403), 3 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:36:14,406 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:36:14,407 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 287 [2022-12-13 17:36:14,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:36:15,088 INFO L130 PetriNetUnfolder]: 4535/6457 cut-off events. [2022-12-13 17:36:15,088 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 17:36:15,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12786 conditions, 6457 events. 4535/6457 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 332. Compared 34499 event pairs, 1241 based on Foata normal form. 0/5865 useless extension candidates. Maximal degree in co-relation 12783. Up to 4903 conditions per place. [2022-12-13 17:36:15,107 INFO L137 encePairwiseOnDemand]: 284/287 looper letters, 37 selfloop transitions, 2 changer transitions 4/47 dead transitions. [2022-12-13 17:36:15,108 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 47 transitions, 190 flow [2022-12-13 17:36:15,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:36:15,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 17:36:15,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 440 transitions. [2022-12-13 17:36:15,110 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5110336817653891 [2022-12-13 17:36:15,110 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 440 transitions. [2022-12-13 17:36:15,110 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 440 transitions. [2022-12-13 17:36:15,111 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:36:15,111 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 440 transitions. [2022-12-13 17:36:15,112 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 146.66666666666666) internal successors, (440), 3 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:36:15,114 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 287.0) internal successors, (1148), 4 states have internal predecessors, (1148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:36:15,114 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 287.0) internal successors, (1148), 4 states have internal predecessors, (1148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:36:15,114 INFO L175 Difference]: Start difference. First operand has 41 places, 31 transitions, 70 flow. Second operand 3 states and 440 transitions. [2022-12-13 17:36:15,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 47 transitions, 190 flow [2022-12-13 17:36:15,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 47 transitions, 190 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 17:36:15,115 INFO L231 Difference]: Finished difference. Result has 42 places, 28 transitions, 68 flow [2022-12-13 17:36:15,115 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=287, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=68, PETRI_PLACES=42, PETRI_TRANSITIONS=28} [2022-12-13 17:36:15,116 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -10 predicate places. [2022-12-13 17:36:15,116 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 28 transitions, 68 flow [2022-12-13 17:36:15,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 134.33333333333334) internal successors, (403), 3 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:36:15,116 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:36:15,117 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:36:15,128 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-13 17:36:15,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 17:36:15,317 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:36:15,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:36:15,318 INFO L85 PathProgramCache]: Analyzing trace with hash -547677962, now seen corresponding path program 1 times [2022-12-13 17:36:15,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 17:36:15,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1395398207] [2022-12-13 17:36:15,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:36:15,319 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 17:36:15,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 17:36:15,320 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 17:36:15,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-12-13 17:36:15,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:36:15,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 17:36:15,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:36:15,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:36:15,443 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:36:15,443 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 17:36:15,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1395398207] [2022-12-13 17:36:15,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1395398207] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:36:15,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:36:15,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:36:15,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856300753] [2022-12-13 17:36:15,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:36:15,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:36:15,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 17:36:15,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:36:15,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:36:15,467 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 287 [2022-12-13 17:36:15,468 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 28 transitions, 68 flow. Second operand has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:36:15,468 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:36:15,468 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 287 [2022-12-13 17:36:15,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:36:15,915 INFO L130 PetriNetUnfolder]: 2757/3993 cut-off events. [2022-12-13 17:36:15,915 INFO L131 PetriNetUnfolder]: For 264/264 co-relation queries the response was YES. [2022-12-13 17:36:15,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8354 conditions, 3993 events. 2757/3993 cut-off events. For 264/264 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 20665 event pairs, 542 based on Foata normal form. 192/4038 useless extension candidates. Maximal degree in co-relation 8350. Up to 3074 conditions per place. [2022-12-13 17:36:15,929 INFO L137 encePairwiseOnDemand]: 280/287 looper letters, 36 selfloop transitions, 5 changer transitions 23/68 dead transitions. [2022-12-13 17:36:15,929 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 68 transitions, 288 flow [2022-12-13 17:36:15,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 17:36:15,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 17:36:15,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 686 transitions. [2022-12-13 17:36:15,932 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47804878048780486 [2022-12-13 17:36:15,932 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 686 transitions. [2022-12-13 17:36:15,932 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 686 transitions. [2022-12-13 17:36:15,932 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:36:15,932 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 686 transitions. [2022-12-13 17:36:15,933 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 137.2) internal successors, (686), 5 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:36:15,936 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 287.0) internal successors, (1722), 6 states have internal predecessors, (1722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:36:15,936 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 287.0) internal successors, (1722), 6 states have internal predecessors, (1722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:36:15,937 INFO L175 Difference]: Start difference. First operand has 42 places, 28 transitions, 68 flow. Second operand 5 states and 686 transitions. [2022-12-13 17:36:15,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 68 transitions, 288 flow [2022-12-13 17:36:15,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 68 transitions, 278 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 17:36:15,938 INFO L231 Difference]: Finished difference. Result has 45 places, 32 transitions, 109 flow [2022-12-13 17:36:15,938 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=287, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=109, PETRI_PLACES=45, PETRI_TRANSITIONS=32} [2022-12-13 17:36:15,939 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -7 predicate places. [2022-12-13 17:36:15,939 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 32 transitions, 109 flow [2022-12-13 17:36:15,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:36:15,940 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:36:15,940 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:36:15,951 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-12-13 17:36:16,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 17:36:16,141 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:36:16,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:36:16,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1449829077, now seen corresponding path program 1 times [2022-12-13 17:36:16,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 17:36:16,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [855520092] [2022-12-13 17:36:16,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:36:16,145 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 17:36:16,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 17:36:16,147 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 17:36:16,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-12-13 17:36:16,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:36:16,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 17:36:16,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:36:16,364 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 17:36:16,365 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:36:16,365 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 17:36:16,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [855520092] [2022-12-13 17:36:16,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [855520092] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:36:16,365 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:36:16,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 17:36:16,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061914844] [2022-12-13 17:36:16,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:36:16,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 17:36:16,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 17:36:16,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 17:36:16,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:36:16,385 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 287 [2022-12-13 17:36:16,386 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 32 transitions, 109 flow. Second operand has 5 states, 5 states have (on average 126.8) internal successors, (634), 5 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:36:16,386 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:36:16,386 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 287 [2022-12-13 17:36:16,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:36:16,776 INFO L130 PetriNetUnfolder]: 1407/2184 cut-off events. [2022-12-13 17:36:16,776 INFO L131 PetriNetUnfolder]: For 902/902 co-relation queries the response was YES. [2022-12-13 17:36:16,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5953 conditions, 2184 events. 1407/2184 cut-off events. For 902/902 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 11029 event pairs, 231 based on Foata normal form. 138/2256 useless extension candidates. Maximal degree in co-relation 5946. Up to 1054 conditions per place. [2022-12-13 17:36:16,785 INFO L137 encePairwiseOnDemand]: 280/287 looper letters, 47 selfloop transitions, 9 changer transitions 23/83 dead transitions. [2022-12-13 17:36:16,785 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 83 transitions, 429 flow [2022-12-13 17:36:16,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 17:36:16,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 17:36:16,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 825 transitions. [2022-12-13 17:36:16,789 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47909407665505227 [2022-12-13 17:36:16,789 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 825 transitions. [2022-12-13 17:36:16,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 825 transitions. [2022-12-13 17:36:16,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:36:16,790 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 825 transitions. [2022-12-13 17:36:16,792 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 137.5) internal successors, (825), 6 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:36:16,796 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 287.0) internal successors, (2009), 7 states have internal predecessors, (2009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:36:16,797 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 287.0) internal successors, (2009), 7 states have internal predecessors, (2009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:36:16,797 INFO L175 Difference]: Start difference. First operand has 45 places, 32 transitions, 109 flow. Second operand 6 states and 825 transitions. [2022-12-13 17:36:16,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 83 transitions, 429 flow [2022-12-13 17:36:16,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 83 transitions, 422 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-12-13 17:36:16,807 INFO L231 Difference]: Finished difference. Result has 49 places, 36 transitions, 174 flow [2022-12-13 17:36:16,807 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=287, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=174, PETRI_PLACES=49, PETRI_TRANSITIONS=36} [2022-12-13 17:36:16,808 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -3 predicate places. [2022-12-13 17:36:16,808 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 36 transitions, 174 flow [2022-12-13 17:36:16,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 126.8) internal successors, (634), 5 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:36:16,809 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:36:16,809 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:36:16,817 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-12-13 17:36:17,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 17:36:17,011 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:36:17,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:36:17,013 INFO L85 PathProgramCache]: Analyzing trace with hash 2010242240, now seen corresponding path program 1 times [2022-12-13 17:36:17,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 17:36:17,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1422274237] [2022-12-13 17:36:17,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:36:17,017 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 17:36:17,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 17:36:17,021 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 17:36:17,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-12-13 17:36:17,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:36:17,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 17:36:17,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:36:17,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:36:17,198 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:36:17,198 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 17:36:17,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1422274237] [2022-12-13 17:36:17,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1422274237] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:36:17,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:36:17,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 17:36:17,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618515507] [2022-12-13 17:36:17,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:36:17,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:36:17,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 17:36:17,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:36:17,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:36:17,236 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 287 [2022-12-13 17:36:17,237 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 36 transitions, 174 flow. Second operand has 6 states, 6 states have (on average 126.83333333333333) internal successors, (761), 6 states have internal predecessors, (761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:36:17,237 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:36:17,238 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 287 [2022-12-13 17:36:17,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:36:17,633 INFO L130 PetriNetUnfolder]: 759/1230 cut-off events. [2022-12-13 17:36:17,633 INFO L131 PetriNetUnfolder]: For 1297/1297 co-relation queries the response was YES. [2022-12-13 17:36:17,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3888 conditions, 1230 events. 759/1230 cut-off events. For 1297/1297 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 5642 event pairs, 169 based on Foata normal form. 57/1266 useless extension candidates. Maximal degree in co-relation 3879. Up to 419 conditions per place. [2022-12-13 17:36:17,639 INFO L137 encePairwiseOnDemand]: 280/287 looper letters, 56 selfloop transitions, 13 changer transitions 23/96 dead transitions. [2022-12-13 17:36:17,639 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 96 transitions, 590 flow [2022-12-13 17:36:17,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 17:36:17,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 17:36:17,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 962 transitions. [2022-12-13 17:36:17,642 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47884519661523145 [2022-12-13 17:36:17,642 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 962 transitions. [2022-12-13 17:36:17,643 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 962 transitions. [2022-12-13 17:36:17,643 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:36:17,643 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 962 transitions. [2022-12-13 17:36:17,645 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 137.42857142857142) internal successors, (962), 7 states have internal predecessors, (962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:36:17,648 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 287.0) internal successors, (2296), 8 states have internal predecessors, (2296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:36:17,648 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 287.0) internal successors, (2296), 8 states have internal predecessors, (2296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:36:17,648 INFO L175 Difference]: Start difference. First operand has 49 places, 36 transitions, 174 flow. Second operand 7 states and 962 transitions. [2022-12-13 17:36:17,648 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 96 transitions, 590 flow [2022-12-13 17:36:17,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 96 transitions, 528 flow, removed 26 selfloop flow, removed 4 redundant places. [2022-12-13 17:36:17,658 INFO L231 Difference]: Finished difference. Result has 52 places, 40 transitions, 224 flow [2022-12-13 17:36:17,658 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=287, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=224, PETRI_PLACES=52, PETRI_TRANSITIONS=40} [2022-12-13 17:36:17,659 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 0 predicate places. [2022-12-13 17:36:17,659 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 40 transitions, 224 flow [2022-12-13 17:36:17,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 126.83333333333333) internal successors, (761), 6 states have internal predecessors, (761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:36:17,660 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:36:17,660 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:36:17,668 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-12-13 17:36:17,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 17:36:17,862 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:36:17,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:36:17,863 INFO L85 PathProgramCache]: Analyzing trace with hash 906193474, now seen corresponding path program 1 times [2022-12-13 17:36:17,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 17:36:17,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [197877582] [2022-12-13 17:36:17,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:36:17,864 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 17:36:17,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 17:36:17,865 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 17:36:17,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-12-13 17:36:18,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:36:18,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 17:36:18,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:36:18,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:36:18,077 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:36:18,077 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 17:36:18,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [197877582] [2022-12-13 17:36:18,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [197877582] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:36:18,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:36:18,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 17:36:18,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628560590] [2022-12-13 17:36:18,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:36:18,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 17:36:18,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 17:36:18,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 17:36:18,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 17:36:18,100 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 287 [2022-12-13 17:36:18,102 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 40 transitions, 224 flow. Second operand has 7 states, 7 states have (on average 126.85714285714286) internal successors, (888), 7 states have internal predecessors, (888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:36:18,102 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:36:18,102 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 287 [2022-12-13 17:36:18,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:36:18,483 INFO L130 PetriNetUnfolder]: 625/996 cut-off events. [2022-12-13 17:36:18,483 INFO L131 PetriNetUnfolder]: For 1004/1004 co-relation queries the response was YES. [2022-12-13 17:36:18,484 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3028 conditions, 996 events. 625/996 cut-off events. For 1004/1004 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 4399 event pairs, 164 based on Foata normal form. 12/998 useless extension candidates. Maximal degree in co-relation 3018. Up to 400 conditions per place. [2022-12-13 17:36:18,487 INFO L137 encePairwiseOnDemand]: 280/287 looper letters, 52 selfloop transitions, 17 changer transitions 12/85 dead transitions. [2022-12-13 17:36:18,487 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 85 transitions, 534 flow [2022-12-13 17:36:18,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 17:36:18,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 17:36:18,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1075 transitions. [2022-12-13 17:36:18,490 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.468205574912892 [2022-12-13 17:36:18,490 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1075 transitions. [2022-12-13 17:36:18,490 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1075 transitions. [2022-12-13 17:36:18,490 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:36:18,491 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1075 transitions. [2022-12-13 17:36:18,492 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 134.375) internal successors, (1075), 8 states have internal predecessors, (1075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:36:18,494 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 287.0) internal successors, (2583), 9 states have internal predecessors, (2583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:36:18,495 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 287.0) internal successors, (2583), 9 states have internal predecessors, (2583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:36:18,495 INFO L175 Difference]: Start difference. First operand has 52 places, 40 transitions, 224 flow. Second operand 8 states and 1075 transitions. [2022-12-13 17:36:18,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 85 transitions, 534 flow [2022-12-13 17:36:18,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 85 transitions, 472 flow, removed 22 selfloop flow, removed 5 redundant places. [2022-12-13 17:36:18,505 INFO L231 Difference]: Finished difference. Result has 55 places, 40 transitions, 218 flow [2022-12-13 17:36:18,505 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=287, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=218, PETRI_PLACES=55, PETRI_TRANSITIONS=40} [2022-12-13 17:36:18,505 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 3 predicate places. [2022-12-13 17:36:18,505 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 40 transitions, 218 flow [2022-12-13 17:36:18,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 126.85714285714286) internal successors, (888), 7 states have internal predecessors, (888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:36:18,506 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:36:18,506 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:36:18,515 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2022-12-13 17:36:18,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 17:36:18,707 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:36:18,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:36:18,708 INFO L85 PathProgramCache]: Analyzing trace with hash 251756516, now seen corresponding path program 1 times [2022-12-13 17:36:18,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 17:36:18,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1920284347] [2022-12-13 17:36:18,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:36:18,710 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 17:36:18,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 17:36:18,713 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 17:36:18,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-12-13 17:36:18,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:36:18,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 17:36:18,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:36:19,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:36:19,159 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:36:19,159 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 17:36:19,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1920284347] [2022-12-13 17:36:19,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1920284347] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:36:19,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:36:19,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:36:19,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975370400] [2022-12-13 17:36:19,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:36:19,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:36:19,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 17:36:19,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:36:19,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:36:19,168 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 287 [2022-12-13 17:36:19,169 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 40 transitions, 218 flow. Second operand has 4 states, 4 states have (on average 135.0) internal successors, (540), 4 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:36:19,169 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:36:19,169 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 287 [2022-12-13 17:36:19,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:36:19,443 INFO L130 PetriNetUnfolder]: 1121/1785 cut-off events. [2022-12-13 17:36:19,443 INFO L131 PetriNetUnfolder]: For 1984/1984 co-relation queries the response was YES. [2022-12-13 17:36:19,445 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5382 conditions, 1785 events. 1121/1785 cut-off events. For 1984/1984 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 9242 event pairs, 545 based on Foata normal form. 0/1770 useless extension candidates. Maximal degree in co-relation 5371. Up to 1068 conditions per place. [2022-12-13 17:36:19,449 INFO L137 encePairwiseOnDemand]: 283/287 looper letters, 66 selfloop transitions, 3 changer transitions 0/72 dead transitions. [2022-12-13 17:36:19,449 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 72 transitions, 552 flow [2022-12-13 17:36:19,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:36:19,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 17:36:19,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 562 transitions. [2022-12-13 17:36:19,451 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4895470383275261 [2022-12-13 17:36:19,451 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 562 transitions. [2022-12-13 17:36:19,451 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 562 transitions. [2022-12-13 17:36:19,451 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:36:19,451 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 562 transitions. [2022-12-13 17:36:19,452 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 140.5) internal successors, (562), 4 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:36:19,453 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 287.0) internal successors, (1435), 5 states have internal predecessors, (1435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:36:19,453 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 287.0) internal successors, (1435), 5 states have internal predecessors, (1435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:36:19,454 INFO L175 Difference]: Start difference. First operand has 55 places, 40 transitions, 218 flow. Second operand 4 states and 562 transitions. [2022-12-13 17:36:19,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 72 transitions, 552 flow [2022-12-13 17:36:19,466 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 72 transitions, 426 flow, removed 38 selfloop flow, removed 7 redundant places. [2022-12-13 17:36:19,467 INFO L231 Difference]: Finished difference. Result has 51 places, 42 transitions, 174 flow [2022-12-13 17:36:19,467 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=287, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=174, PETRI_PLACES=51, PETRI_TRANSITIONS=42} [2022-12-13 17:36:19,468 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -1 predicate places. [2022-12-13 17:36:19,468 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 42 transitions, 174 flow [2022-12-13 17:36:19,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 135.0) internal successors, (540), 4 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:36:19,468 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:36:19,468 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:36:19,480 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2022-12-13 17:36:19,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 17:36:19,669 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:36:19,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:36:19,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1803654105, now seen corresponding path program 1 times [2022-12-13 17:36:19,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 17:36:19,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [533413141] [2022-12-13 17:36:19,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:36:19,671 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 17:36:19,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 17:36:19,672 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 17:36:19,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-12-13 17:36:19,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:36:19,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 18 conjunts are in the unsatisfiable core [2022-12-13 17:36:19,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:36:20,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:36:20,377 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:36:20,378 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 17:36:20,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [533413141] [2022-12-13 17:36:20,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [533413141] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:36:20,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:36:20,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 17:36:20,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373186799] [2022-12-13 17:36:20,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:36:20,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:36:20,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 17:36:20,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:36:20,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:36:20,731 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 287 [2022-12-13 17:36:20,732 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 42 transitions, 174 flow. Second operand has 6 states, 6 states have (on average 116.83333333333333) internal successors, (701), 6 states have internal predecessors, (701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:36:20,732 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:36:20,732 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 287 [2022-12-13 17:36:20,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:36:21,141 INFO L130 PetriNetUnfolder]: 907/1475 cut-off events. [2022-12-13 17:36:21,141 INFO L131 PetriNetUnfolder]: For 1194/1194 co-relation queries the response was YES. [2022-12-13 17:36:21,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4213 conditions, 1475 events. 907/1475 cut-off events. For 1194/1194 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 7712 event pairs, 39 based on Foata normal form. 2/1477 useless extension candidates. Maximal degree in co-relation 4203. Up to 1137 conditions per place. [2022-12-13 17:36:21,145 INFO L137 encePairwiseOnDemand]: 282/287 looper letters, 54 selfloop transitions, 4 changer transitions 4/66 dead transitions. [2022-12-13 17:36:21,145 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 66 transitions, 412 flow [2022-12-13 17:36:21,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 17:36:21,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 17:36:21,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 717 transitions. [2022-12-13 17:36:21,147 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4163763066202091 [2022-12-13 17:36:21,147 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 717 transitions. [2022-12-13 17:36:21,147 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 717 transitions. [2022-12-13 17:36:21,148 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:36:21,148 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 717 transitions. [2022-12-13 17:36:21,149 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 119.5) internal successors, (717), 6 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:36:21,150 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 287.0) internal successors, (2009), 7 states have internal predecessors, (2009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:36:21,150 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 287.0) internal successors, (2009), 7 states have internal predecessors, (2009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:36:21,150 INFO L175 Difference]: Start difference. First operand has 51 places, 42 transitions, 174 flow. Second operand 6 states and 717 transitions. [2022-12-13 17:36:21,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 66 transitions, 412 flow [2022-12-13 17:36:21,155 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 66 transitions, 408 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 17:36:21,155 INFO L231 Difference]: Finished difference. Result has 54 places, 39 transitions, 168 flow [2022-12-13 17:36:21,155 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=287, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=168, PETRI_PLACES=54, PETRI_TRANSITIONS=39} [2022-12-13 17:36:21,156 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 2 predicate places. [2022-12-13 17:36:21,156 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 39 transitions, 168 flow [2022-12-13 17:36:21,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 116.83333333333333) internal successors, (701), 6 states have internal predecessors, (701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:36:21,156 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:36:21,156 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:36:21,165 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2022-12-13 17:36:21,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 17:36:21,358 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:36:21,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:36:21,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1616736058, now seen corresponding path program 2 times [2022-12-13 17:36:21,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 17:36:21,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1924596496] [2022-12-13 17:36:21,362 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 17:36:21,362 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 17:36:21,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 17:36:21,366 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 17:36:21,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-12-13 17:36:21,542 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 17:36:21,542 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 17:36:21,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 17:36:21,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:36:21,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:36:21,835 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:36:21,836 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 17:36:21,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1924596496] [2022-12-13 17:36:21,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1924596496] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:36:21,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:36:21,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 17:36:21,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50652924] [2022-12-13 17:36:21,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:36:21,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 17:36:21,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 17:36:21,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 17:36:21,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:36:21,848 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 287 [2022-12-13 17:36:21,849 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 39 transitions, 168 flow. Second operand has 5 states, 5 states have (on average 132.8) internal successors, (664), 5 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:36:21,849 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:36:21,849 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 287 [2022-12-13 17:36:21,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:36:22,101 INFO L130 PetriNetUnfolder]: 648/1078 cut-off events. [2022-12-13 17:36:22,101 INFO L131 PetriNetUnfolder]: For 878/878 co-relation queries the response was YES. [2022-12-13 17:36:22,103 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3187 conditions, 1078 events. 648/1078 cut-off events. For 878/878 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 5083 event pairs, 140 based on Foata normal form. 1/1078 useless extension candidates. Maximal degree in co-relation 3177. Up to 686 conditions per place. [2022-12-13 17:36:22,105 INFO L137 encePairwiseOnDemand]: 283/287 looper letters, 42 selfloop transitions, 1 changer transitions 32/78 dead transitions. [2022-12-13 17:36:22,105 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 78 transitions, 492 flow [2022-12-13 17:36:22,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 17:36:22,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 17:36:22,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 690 transitions. [2022-12-13 17:36:22,107 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4808362369337979 [2022-12-13 17:36:22,107 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 690 transitions. [2022-12-13 17:36:22,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 690 transitions. [2022-12-13 17:36:22,107 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:36:22,107 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 690 transitions. [2022-12-13 17:36:22,108 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 138.0) internal successors, (690), 5 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:36:22,109 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 287.0) internal successors, (1722), 6 states have internal predecessors, (1722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:36:22,109 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 287.0) internal successors, (1722), 6 states have internal predecessors, (1722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:36:22,109 INFO L175 Difference]: Start difference. First operand has 54 places, 39 transitions, 168 flow. Second operand 5 states and 690 transitions. [2022-12-13 17:36:22,109 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 78 transitions, 492 flow [2022-12-13 17:36:22,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 78 transitions, 471 flow, removed 3 selfloop flow, removed 6 redundant places. [2022-12-13 17:36:22,115 INFO L231 Difference]: Finished difference. Result has 54 places, 39 transitions, 164 flow [2022-12-13 17:36:22,115 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=287, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=164, PETRI_PLACES=54, PETRI_TRANSITIONS=39} [2022-12-13 17:36:22,115 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 2 predicate places. [2022-12-13 17:36:22,115 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 39 transitions, 164 flow [2022-12-13 17:36:22,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 132.8) internal successors, (664), 5 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:36:22,116 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:36:22,116 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:36:22,125 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2022-12-13 17:36:22,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 17:36:22,318 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:36:22,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:36:22,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1533623540, now seen corresponding path program 3 times [2022-12-13 17:36:22,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 17:36:22,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [559287864] [2022-12-13 17:36:22,321 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 17:36:22,322 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 17:36:22,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 17:36:22,324 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 17:36:22,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-12-13 17:36:22,436 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-13 17:36:22,437 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 17:36:22,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 17:36:22,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:36:22,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:36:22,607 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:36:22,607 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 17:36:22,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [559287864] [2022-12-13 17:36:22,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [559287864] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:36:22,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:36:22,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 17:36:22,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635574001] [2022-12-13 17:36:22,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:36:22,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 17:36:22,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 17:36:22,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 17:36:22,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:36:22,621 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 287 [2022-12-13 17:36:22,622 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 39 transitions, 164 flow. Second operand has 5 states, 5 states have (on average 132.8) internal successors, (664), 5 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:36:22,622 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:36:22,622 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 287 [2022-12-13 17:36:22,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:36:22,837 INFO L130 PetriNetUnfolder]: 726/1197 cut-off events. [2022-12-13 17:36:22,837 INFO L131 PetriNetUnfolder]: For 1164/1164 co-relation queries the response was YES. [2022-12-13 17:36:22,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3538 conditions, 1197 events. 726/1197 cut-off events. For 1164/1164 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 5730 event pairs, 308 based on Foata normal form. 1/1192 useless extension candidates. Maximal degree in co-relation 3527. Up to 464 conditions per place. [2022-12-13 17:36:22,840 INFO L137 encePairwiseOnDemand]: 283/287 looper letters, 37 selfloop transitions, 1 changer transitions 37/78 dead transitions. [2022-12-13 17:36:22,840 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 78 transitions, 502 flow [2022-12-13 17:36:22,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 17:36:22,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 17:36:22,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 686 transitions. [2022-12-13 17:36:22,842 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47804878048780486 [2022-12-13 17:36:22,842 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 686 transitions. [2022-12-13 17:36:22,842 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 686 transitions. [2022-12-13 17:36:22,842 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:36:22,842 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 686 transitions. [2022-12-13 17:36:22,843 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 137.2) internal successors, (686), 5 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:36:22,845 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 287.0) internal successors, (1722), 6 states have internal predecessors, (1722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:36:22,846 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 287.0) internal successors, (1722), 6 states have internal predecessors, (1722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:36:22,846 INFO L175 Difference]: Start difference. First operand has 54 places, 39 transitions, 164 flow. Second operand 5 states and 686 transitions. [2022-12-13 17:36:22,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 78 transitions, 502 flow [2022-12-13 17:36:22,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 78 transitions, 493 flow, removed 3 selfloop flow, removed 3 redundant places. [2022-12-13 17:36:22,853 INFO L231 Difference]: Finished difference. Result has 56 places, 39 transitions, 168 flow [2022-12-13 17:36:22,853 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=287, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=168, PETRI_PLACES=56, PETRI_TRANSITIONS=39} [2022-12-13 17:36:22,854 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 4 predicate places. [2022-12-13 17:36:22,854 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 39 transitions, 168 flow [2022-12-13 17:36:22,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 132.8) internal successors, (664), 5 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:36:22,854 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:36:22,855 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:36:22,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-12-13 17:36:23,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 17:36:23,056 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:36:23,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:36:23,056 INFO L85 PathProgramCache]: Analyzing trace with hash -212546508, now seen corresponding path program 4 times [2022-12-13 17:36:23,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 17:36:23,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1608915767] [2022-12-13 17:36:23,057 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 17:36:23,057 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 17:36:23,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 17:36:23,058 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 17:36:23,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-12-13 17:36:23,142 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 17:36:23,142 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 17:36:23,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 20 conjunts are in the unsatisfiable core [2022-12-13 17:36:23,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:36:23,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:36:23,446 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:36:23,446 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 17:36:23,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1608915767] [2022-12-13 17:36:23,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1608915767] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:36:23,447 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:36:23,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 17:36:23,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631200195] [2022-12-13 17:36:23,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:36:23,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 17:36:23,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 17:36:23,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 17:36:23,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:36:23,516 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 287 [2022-12-13 17:36:23,517 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 39 transitions, 168 flow. Second operand has 10 states, 10 states have (on average 129.4) internal successors, (1294), 10 states have internal predecessors, (1294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:36:23,517 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:36:23,517 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 287 [2022-12-13 17:36:23,517 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:36:23,829 INFO L130 PetriNetUnfolder]: 731/1220 cut-off events. [2022-12-13 17:36:23,829 INFO L131 PetriNetUnfolder]: For 1207/1207 co-relation queries the response was YES. [2022-12-13 17:36:23,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3747 conditions, 1220 events. 731/1220 cut-off events. For 1207/1207 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 5641 event pairs, 197 based on Foata normal form. 1/1213 useless extension candidates. Maximal degree in co-relation 3735. Up to 526 conditions per place. [2022-12-13 17:36:23,832 INFO L137 encePairwiseOnDemand]: 281/287 looper letters, 46 selfloop transitions, 3 changer transitions 31/83 dead transitions. [2022-12-13 17:36:23,832 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 83 transitions, 535 flow [2022-12-13 17:36:23,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 17:36:23,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 17:36:23,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 813 transitions. [2022-12-13 17:36:23,834 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4721254355400697 [2022-12-13 17:36:23,834 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 813 transitions. [2022-12-13 17:36:23,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 813 transitions. [2022-12-13 17:36:23,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:36:23,834 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 813 transitions. [2022-12-13 17:36:23,835 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 135.5) internal successors, (813), 6 states have internal predecessors, (813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:36:23,836 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 287.0) internal successors, (2009), 7 states have internal predecessors, (2009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:36:23,837 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 287.0) internal successors, (2009), 7 states have internal predecessors, (2009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:36:23,837 INFO L175 Difference]: Start difference. First operand has 56 places, 39 transitions, 168 flow. Second operand 6 states and 813 transitions. [2022-12-13 17:36:23,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 83 transitions, 535 flow [2022-12-13 17:36:23,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 83 transitions, 526 flow, removed 3 selfloop flow, removed 3 redundant places. [2022-12-13 17:36:23,844 INFO L231 Difference]: Finished difference. Result has 59 places, 39 transitions, 178 flow [2022-12-13 17:36:23,844 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=287, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=178, PETRI_PLACES=59, PETRI_TRANSITIONS=39} [2022-12-13 17:36:23,845 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 7 predicate places. [2022-12-13 17:36:23,845 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 39 transitions, 178 flow [2022-12-13 17:36:23,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 129.4) internal successors, (1294), 10 states have internal predecessors, (1294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:36:23,845 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:36:23,846 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:36:23,853 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2022-12-13 17:36:24,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 17:36:24,047 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 17:36:24,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:36:24,048 INFO L85 PathProgramCache]: Analyzing trace with hash 182273770, now seen corresponding path program 5 times [2022-12-13 17:36:24,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 17:36:24,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [563557456] [2022-12-13 17:36:24,050 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-13 17:36:24,051 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 17:36:24,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 17:36:24,054 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 17:36:24,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-12-13 17:36:24,196 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 17:36:24,197 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2022-12-13 17:36:24,197 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 17:36:24,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:36:24,319 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 17:36:24,320 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 17:36:24,321 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (15 of 16 remaining) [2022-12-13 17:36:24,322 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONMEMORY_LEAK (14 of 16 remaining) [2022-12-13 17:36:24,322 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 16 remaining) [2022-12-13 17:36:24,322 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 16 remaining) [2022-12-13 17:36:24,323 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 16 remaining) [2022-12-13 17:36:24,323 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 16 remaining) [2022-12-13 17:36:24,323 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 16 remaining) [2022-12-13 17:36:24,323 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 16 remaining) [2022-12-13 17:36:24,323 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 16 remaining) [2022-12-13 17:36:24,323 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 16 remaining) [2022-12-13 17:36:24,323 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK (5 of 16 remaining) [2022-12-13 17:36:24,324 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 16 remaining) [2022-12-13 17:36:24,324 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 16 remaining) [2022-12-13 17:36:24,324 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 16 remaining) [2022-12-13 17:36:24,324 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 16 remaining) [2022-12-13 17:36:24,324 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 16 remaining) [2022-12-13 17:36:24,336 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2022-12-13 17:36:24,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 17:36:24,526 INFO L445 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:36:24,540 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 17:36:24,541 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 17:36:24,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 05:36:24 BasicIcfg [2022-12-13 17:36:24,610 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 17:36:24,610 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 17:36:24,610 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 17:36:24,611 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 17:36:24,611 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:36:05" (3/4) ... [2022-12-13 17:36:24,613 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 17:36:24,613 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 17:36:24,613 INFO L158 Benchmark]: Toolchain (without parser) took 20428.22ms. Allocated memory was 62.9MB in the beginning and 738.2MB in the end (delta: 675.3MB). Free memory was 32.0MB in the beginning and 485.3MB in the end (delta: -453.3MB). Peak memory consumption was 221.6MB. Max. memory is 16.1GB. [2022-12-13 17:36:24,614 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 62.9MB. Free memory is still 41.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 17:36:24,614 INFO L158 Benchmark]: CACSL2BoogieTranslator took 414.47ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 31.9MB in the beginning and 53.8MB in the end (delta: -21.9MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. [2022-12-13 17:36:24,614 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.20ms. Allocated memory is still 75.5MB. Free memory was 53.8MB in the beginning and 51.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 17:36:24,614 INFO L158 Benchmark]: Boogie Preprocessor took 21.23ms. Allocated memory is still 75.5MB. Free memory was 51.1MB in the beginning and 48.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 17:36:24,615 INFO L158 Benchmark]: RCFGBuilder took 618.93ms. Allocated memory is still 75.5MB. Free memory was 48.7MB in the beginning and 45.4MB in the end (delta: 3.3MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. [2022-12-13 17:36:24,615 INFO L158 Benchmark]: TraceAbstraction took 19330.72ms. Allocated memory was 75.5MB in the beginning and 738.2MB in the end (delta: 662.7MB). Free memory was 45.0MB in the beginning and 486.4MB in the end (delta: -441.4MB). Peak memory consumption was 222.3MB. Max. memory is 16.1GB. [2022-12-13 17:36:24,615 INFO L158 Benchmark]: Witness Printer took 2.58ms. Allocated memory is still 738.2MB. Free memory was 486.4MB in the beginning and 485.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 17:36:24,616 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 62.9MB. Free memory is still 41.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 414.47ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 31.9MB in the beginning and 53.8MB in the end (delta: -21.9MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.20ms. Allocated memory is still 75.5MB. Free memory was 53.8MB in the beginning and 51.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.23ms. Allocated memory is still 75.5MB. Free memory was 51.1MB in the beginning and 48.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 618.93ms. Allocated memory is still 75.5MB. Free memory was 48.7MB in the beginning and 45.4MB in the end (delta: 3.3MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. * TraceAbstraction took 19330.72ms. Allocated memory was 75.5MB in the beginning and 738.2MB in the end (delta: 662.7MB). Free memory was 45.0MB in the beginning and 486.4MB in the end (delta: -441.4MB). Peak memory consumption was 222.3MB. Max. memory is 16.1GB. * Witness Printer took 2.58ms. Allocated memory is still 738.2MB. Free memory was 486.4MB in the beginning and 485.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.4s, 154 PlacesBefore, 52 PlacesAfterwards, 143 TransitionsBefore, 40 TransitionsAfterwards, 3434 CoEnabledTransitionPairs, 7 FixpointIterations, 54 TrivialSequentialCompositions, 78 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 140 TotalNumberOfCompositions, 9608 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3120, independent: 2891, independent conditional: 0, independent unconditional: 2891, dependent: 229, dependent conditional: 0, dependent unconditional: 229, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1690, independent: 1648, independent conditional: 0, independent unconditional: 1648, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3120, independent: 1243, independent conditional: 0, independent unconditional: 1243, dependent: 187, dependent conditional: 0, dependent unconditional: 187, unknown: 1690, unknown conditional: 0, unknown unconditional: 1690] , Statistics on independence cache: Total cache size (in pairs): 107, Positive cache size: 88, Positive conditional cache size: 0, Positive unconditional cache size: 88, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p2_EAX = 0; [L714] 0 int __unbuffered_p3_EAX = 0; [L716] 0 int a = 0; [L717] 0 _Bool main$tmp_guard0; [L718] 0 _Bool main$tmp_guard1; [L720] 0 int x = 0; [L722] 0 int y = 0; [L723] 0 _Bool y$flush_delayed; [L724] 0 int y$mem_tmp; [L725] 0 _Bool y$r_buff0_thd0; [L726] 0 _Bool y$r_buff0_thd1; [L727] 0 _Bool y$r_buff0_thd2; [L728] 0 _Bool y$r_buff0_thd3; [L729] 0 _Bool y$r_buff0_thd4; [L730] 0 _Bool y$r_buff1_thd0; [L731] 0 _Bool y$r_buff1_thd1; [L732] 0 _Bool y$r_buff1_thd2; [L733] 0 _Bool y$r_buff1_thd3; [L734] 0 _Bool y$r_buff1_thd4; [L735] 0 _Bool y$read_delayed; [L736] 0 int *y$read_delayed_var; [L737] 0 int y$w_buff0; [L738] 0 _Bool y$w_buff0_used; [L739] 0 int y$w_buff1; [L740] 0 _Bool y$w_buff1_used; [L742] 0 int z = 0; [L743] 0 _Bool weak$$choice0; [L744] 0 _Bool weak$$choice2; [L841] 0 pthread_t t1433; [L842] FCALL, FORK 0 pthread_create(&t1433, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1433, ((void *)0), P0, ((void *)0))=0, t1433={11:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L843] 0 pthread_t t1434; [L844] FCALL, FORK 0 pthread_create(&t1434, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1434, ((void *)0), P1, ((void *)0))=1, t1433={11:0}, t1434={15:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L845] 0 pthread_t t1435; [L846] FCALL, FORK 0 pthread_create(&t1435, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1435, ((void *)0), P2, ((void *)0))=2, t1433={11:0}, t1434={15:0}, t1435={7:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L847] 0 pthread_t t1436; [L848] FCALL, FORK 0 pthread_create(&t1436, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1436, ((void *)0), P3, ((void *)0))=3, t1433={11:0}, t1434={15:0}, t1435={7:0}, t1436={-2147483637:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L783] 3 y$w_buff1 = y$w_buff0 [L784] 3 y$w_buff0 = 2 [L785] 3 y$w_buff1_used = y$w_buff0_used [L786] 3 y$w_buff0_used = (_Bool)1 [L787] CALL 3 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L18] COND FALSE 3 !(!expression) [L787] RET 3 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L788] 3 y$r_buff1_thd0 = y$r_buff0_thd0 [L789] 3 y$r_buff1_thd1 = y$r_buff0_thd1 [L790] 3 y$r_buff1_thd2 = y$r_buff0_thd2 [L791] 3 y$r_buff1_thd3 = y$r_buff0_thd3 [L792] 3 y$r_buff1_thd4 = y$r_buff0_thd4 [L793] 3 y$r_buff0_thd3 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L796] 3 __unbuffered_p2_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L813] 4 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L816] 4 __unbuffered_p3_EAX = a VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L748] 1 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L751] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L763] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L766] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L819] 4 y = y$w_buff0_used && y$r_buff0_thd4 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y) [L820] 4 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$w_buff0_used [L821] 4 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$w_buff1_used [L822] 4 y$r_buff0_thd4 = y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$r_buff0_thd4 [L823] 4 y$r_buff1_thd4 = y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$r_buff1_thd4 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L769] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L770] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L771] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L772] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L773] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L799] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L800] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L801] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L802] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L803] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L756] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L758] 1 return 0; [L806] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L808] 3 return 0; [L776] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L778] 2 return 0; [L826] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L828] 4 return 0; [L850] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L852] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L852] RET 0 assume_abort_if_not(main$tmp_guard0) [L854] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L855] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L856] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L857] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L858] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1433={11:0}, t1434={15:0}, t1435={7:0}, t1436={-2147483637:0}, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L861] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L862] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L863] 0 y$flush_delayed = weak$$choice2 [L864] 0 y$mem_tmp = y [L865] 0 y = !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L866] 0 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L867] 0 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L868] 0 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L869] 0 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L870] 0 y$r_buff0_thd0 = weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L871] 0 y$r_buff1_thd0 = weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L872] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p2_EAX == 0 && __unbuffered_p3_EAX == 0) [L873] 0 y = y$flush_delayed ? y$mem_tmp : y [L874] 0 y$flush_delayed = (_Bool)0 [L876] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\old(expression)=0, \old(expression)=1, \result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=0, expression=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 839]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 848]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 846]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 842]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 844]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 182 locations, 16 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 19.2s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 5.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 538 SdHoareTripleChecker+Valid, 2.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 427 mSDsluCounter, 265 SdHoareTripleChecker+Invalid, 2.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 227 mSDsCounter, 94 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2209 IncrementalHoareTripleChecker+Invalid, 2303 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 94 mSolverCounterUnsat, 38 mSDtfsCounter, 2209 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 211 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=224occurred in iteration=5, InterpolantAutomatonStates: 57, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 239 NumberOfCodeBlocks, 239 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 201 ConstructedInterpolants, 16 QuantifiedInterpolants, 1956 SizeOfPredicates, 21 NumberOfNonLiveVariables, 1720 ConjunctsInSsa, 87 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 17:36:24,628 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ede7d23-0210-46eb-9b7a-420e485f177e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample